Deh 2790mp/xn/id

ORDER NO.

CRT3396 DEH-2790MP/XN/ID

HIGH POWER CD/MP3/WMA PLAYER WITH FM/AM TUNER

DEH-2790MP

/XN/ID

DEH-2750MP/XN/GS DEH-2770MP/XN/CS

This service manual should be used together with the following manual(s): Model No. CX-3158

Order No. CRT3394

Mech.Module S10.1AAC

Remarks CD Mech. Module : Circuit Description, Mech. Description, Disassembly

For details, refer to "Important Check Points for Good Servicing". PIONEER CORPORATION

4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2004 K-ZZA. NOV. 2004 Printed in Japan

1

2

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4

SAFETY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.

A

- Service Precaution 1. You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual. 2. Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors during power-on mode may damage the ICs inside the unit. 3. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment (shorting-solder) by referring to "the DISASSEMBLY". 4. After replacing the pickup unit, be sure to check the grating.

B

C

D

E

F

2

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

[Important Check Points for Good Servicing] In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures. A

1. Product safety Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual. 1 Use specified parts for repair. Use genuine parts. Be sure to use important parts for safety. 2 Do not perform modifications without proper instructions. Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise. 3 Make sure the soldering of repaired locations is properly performed.

B

When you solder while repairing, please be sure that there are no cold solder and other debris. Soldering should be finished with the proper quantity. (Refer to the example) 4 Make sure the screws are tightly fastened. Please be sure that all screws are fastened, and that there are no loose screws. 5 Make sure each connectors are correctly inserted. Please be sure that all connectors are inserted, and that there are no imperfect insertion. 6 Make sure the wiring cables are set to their original state. Please replace the wiring and cables to the original state after repairs. In addition, be sure that there are no pinched wires, etc.

C

7 Make sure screws and soldering scraps do not remain inside the product. Please check that neither solder debris nor screws remain inside the product. 8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord. Damaged power cords may lead to fire accidents, so please be sure that there are no damages. If you find a damaged power cord, please exchange it with a suitable one. 9 There should be no spark traces or similar marks on the power plug. When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary. 0 Safe environment should be secured during servicing.

D

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely.

2. Adjustments To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification. Adjustments should be performed in accordance with the procedures/instructions described in this manual.

3. Lubricants, Glues, and Replacement parts Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.

E

4. Cleaning For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.

5. Shipping mode and Shipping screws To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

F

DEH-2790MP/XN/ID 5

6

7

8

3

1

2

3

4

CONTENTS SAFETY INFORMATION ..................................................................................................................................... 2 1. SPECIFICATIONS ............................................................................................................................................ 5 2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 8 2.1 PACKING ................................................................................................................................................... 8 2.2 EXTERIOR............................................................................................................................................... 10 2.3 CD MECHANISM MODULE..................................................................................................................... 12 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .......................................................................................... 14 3.1 BLOCK DIAGRAM ................................................................................................................................... 14 3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE).............................................................................. 16 3.3 KEYBOARD UNIT.................................................................................................................................... 22 3.4 CD MECHANISM MODULE(GUIDE PAGE) ............................................................................................ 24 4. PCB CONNECTION DIAGRAM ..................................................................................................................... 34 4.1 TUNER AMP UNIT................................................................................................................................... 34 4.2 KEYBOARD UNIT.................................................................................................................................... 38 4.3 CD CORE UNIT(S10.1) ........................................................................................................................... 40 5. ELECTRICAL PARTS LIST ............................................................................................................................ 42 6. ADJUSTMENT ............................................................................................................................................... 46 6.1 CD ADJUSTMENT................................................................................................................................... 46 6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT .................................................... 48 6.3 ERROR MODE ........................................................................................................................................ 50 6.4 SYSTEM MICROCOMPUTER TEST PROGRAM ................................................................................... 51 7. GENERAL INFORMATION ............................................................................................................................. 52 7.1 DIAGNOSIS ............................................................................................................................................. 52 7.1.1 DISASSEMBLY ..................................................................................................................................... 52 7.1.2 CONNECTOR FUNCTION DESCRIPTION .......................................................................................... 55 7.2 PARTS...................................................................................................................................................... 56 7.2.1 IC .......................................................................................................................................................... 56 7.2.2 DISPLAY ............................................................................................................................................... 64 7.3 OPERATIONAL FLOW CHART ............................................................................................................... 65 7.4 CLEANING............................................................................................................................................... 66 8. OPERATIONS ................................................................................................................................................ 67

A

B

C

D

E

F

4

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

1. SPECIFICATIONS A

B

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

5

1

2

1

2

3

4

3

4

A

B

C

D

E

F

6

DEH-2790MP/XN/ID

5

6

7

8

A

B

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

7

1

2

3

4

2. EXPLODED VIEWS AND PARTS LIST NOTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List. • The > mark found on some component parts indicatesthe importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. • Screw adjacent to mark on the product are used for disassembly. • For the applying amount of lobricants or glue, follow the instructions in this manual. (In the case of no amount instructions,apply as you think it appropriate.)

A

"

2.1 PACKING

B

3

1

15

2

4 8

C

13

D

E

F

8

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

(1) PACKING SECTION PARTS LIST Mark No.

Mark No.

Part No.

1 2 3 4 5

Accessory Assy Screw Assy Screw Polyethylene Bag Screw

CEA4850 CEA3849 CBA1650 CEG-127 CRZ50P090FTC

6 7 8 9 10

Screw Polyethylene Bag Handle Bush Polyethylene Bag

TRZ50P080FTC CEG-158 CNC5395 CNV3930 CEG-162

*

*

Description

Description

Part No.

11 12 13 14 15-1

Carton Contain Box Protector Protector Owner's Manual

See Contrast table(2) See Contrast table(2) CHP2664 CHP2868 See Contrast table(2)

15-2 15-3 16 17

Installation Manual Caution Card Case Assy Cord Assy

See Contrast table(2) CRP1310 CXB3520 XDE7008

(2) CONTRAST TABLE DEH-2790MP/XN/ID, DEH-2750MP/XN/GS and DEH-2770MP/XN/CS are constructed the same except for the following: Mark

No.

Description

11 12 15-1 15-2

Carton Contain Box Owner's Manual Installation Manual

DEH-2790MP/XN/ID CHG5470 CHL5470 CRD3939 CRD3940

DEH-2750MP/XN/GS CHG5434 CHL5434 CRD3939 CRD3940

A

B

DEH-2770MP/XN/CS CHG5435 CHL5435 CRD3937 CRD3938

Owner's Manual,Installation Manual Part No.

Language C

CRD3939

English, Traditional Chinese, Arabic

CRD3940

English, Traditional Chinese, Arabic

CRD3937

English, Spanish, Portuguese(B)

CRD3938

English, Spanish, Portuguese(B)

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

9

1

2

3

4

3

4

2.2 EXTERIOR A

B

C

D

E

F

10

DEH-2790MP/XN/ID 1

2

5

6

7

8

(1) EXTERIOR SECTION PARTS LIST Mark No.

>

Description

Mark No.

Part No.

1 2 3 4 5

Screw Screw Cable Cord Assy •••••

BSZ26P060FTC BSZ26P100FTC CDE7703 XDE7008

6 7 8 9 10

Case Holder Insulator Tuner Amp Unit Screw

CNB2793 CNC8659 CNM9145 See Contrast table(2) ASZ26P060FTC

11 12 13 14 15

Screw Screw Fuse(10A) Pin Jack(CN352) Plug(CN901)

BMZ26P160FTC BPZ26P080FTC CEK1208 CKB1059 CKM1376

16 17 18 19 20

Connector(CN831) Connector(CN651) Antenna Jack(CN401) Holder Holder

CKS3581 CKS3837 CKX1056 CND2413 CND2414

21 22 23 24 25

Heat Sink FM/AM Tuner Unit Holder Terminal(CN402) Button(DETACH)

CNR1762 CWE1912 CND1054 VNF1084 CAC4836

26 27 28 29 30

Spring Spring Spring Bracket Holder

CBH1835 CBH2208 CBH2367 CNC6791 CNC8042

31

Cover

CNM6276

Description

Part No.

32 33 34 35

Panel Arm Arm Arm

CNS8044 CNV4692 CNV4728 CNV5576

36 37 38 39 40

Screw Chassis Unit Detach Grille Assy Screw Button(TA, VOLUME(+/-))

IMS20P030FZK CXC3600 See Contrast table(2) BPZ20P100FZK CAC8924

41 42 43 44 45

Button(BTB, SOURCE) Button(1-6, LOCAL/BSM) Button(EJECT, AUDIO) Button(DETACH)

CAC8927 CAC8929 CAC8930 CAC8931

46 47 48 49 50

Button(DISPLAY, BAND) Spring Cover LCD Connector(CN1801)

CAC8934 CBH2210 CNS8042 CAW1848 CKS3580

51 52 53 54 55

Holder Sheet Lighting Conductor Rubber Connector

CND2412 CNM9144 CNV8190 CNV8191 CNV8192

56 57

Grille Unit

See Contrast table(2)

58 59 60

Screw IC(IC302) Transistor(Q911, 921, 991)

A

Button(UP, DOWN, LEFT, RIGHT) CAC8926

B

C

CD Mechanism Module(S10.1AACA) CXK5663

ISS26P055FTC PAL007A 2SD2396 D

61

Panel

See Contrast table(2)

(2) CONTRAST TABLE DEH-2790MP/XN/ID, DEH-2750MP/XN/GS and DEH-2770MP/XN/CS are constructed the same except for the following: Mark

No.

Description

9 38 56 61

Tuner Amp Unit Detach Grille Assy Grille Unit Panel

DEH-2790MP/XN/ID CWM9693 CXC4395 CXC4239 YNS5045

DEH-2750MP/XN/GS CWM9693 CXC3748 CXC3643 YNS5045

DEH-2770MP/XN/CS CWM9970 CXC4391 CXC4236 CNS8048

E

F

DEH-2790MP/XN/ID 5

6

7

8

11

1

2

3

4

2.3 CD MECHANISM MODULE 5 42 13

A

81 34

5

15

13

22

E

5

F

93 13

92

A B

44 5 54

1

13

C

G

83

86

68

D

52

B

26

82

86

53

28

I

H

4

28

37 71

4

23

1

55

4

1

2

J

87

36

5

45

50

73

23

72

18 29 51

64

38

K

10

47

75

1

C

I

2

24

76

B

49

1

7

61

E M

2

A

Q

27 8

H

21

G

L

M

1

57 D

90 48

1

79

77

F

1

63 2

59

N

D

O

R

16

17

12

1

58

67

J

3

1

78

33 P

2

62

46 60

20

2

80 40

1

6

1

N

1GEM1024 2GEM1045 3GEM1035

1

11

1

25

69

P

43

L

30

19

56

60

39

K

70 14

E

74 41

R

85

31

C

91

14

C

65 1

3

F

Q

35 O

85

31

2

66 85

12

DEH-2790MP/XN/ID 1

2

3

4

89 10

5

6

7

8

CD MECHANISM MODULE SECTION PARTS LIST Mark No.

Description

Mark No.

Part No.

1 2 3 4 5

CD Core Unit(S10.1) Connector(CN101) Connector(CN901) Screw Screw

CWX3096 CKS4182 CKS4017 BMZ20P035FTC BSZ20P040FTC

6 7 8 9 10

Screw(M2x4) Screw(M2x3) Screw(M2x3) ••••• Washer

CBA1362 CBA1824 CBA1825

11 12 13 14 15

Washer Spring Spring Spring Spring

CBF1060 CBH2390 CBH2606 CBH2607 CBH2608

16 17 18 19 20

Spring Spring Spring Spring Spring

CBH2609 CBH2610 CBH2735 CBH2612 CBH2613

21 22 23 24 25

Spring Spring Spring Spring Spring

CBH2614 CBH2615 CBH2616 CBH2617 CBH2620

26 27 28 29 30

Spring Spring Spring Spring Spring

CBH2621 CBH2641 CBH2642 CBH2643 CBH2659

31 32 33 34 35

Spring ••••• Shaft Frame Frame

CBH2688

36 37 38 39 40

Bracket Bracket Arm Arm Lever

CND2712 CND1895 CNC9968 CND1909 CND2032

41 42 43 44 45

Lever Sheet Collar Guide Arm

CNC9984 CNM8134 CNV7798 CNV7799 CNV8403

46 47 48 49

Rack Holder Holder Arm

CNV8374 CNV8376 CNV8377 CNV8378

CBF1038

CLA4441 CNC9962 CNC9963

Description

Part No.

50

Gear

CNV8379

51 52 53 54 55

Gear Gear Gear Gear Gear

CNV8380 CNV8381 CNV8382 CNV8383 CNV8384

56 57 58 59 60

Rack Arm Arm Guide Roller

CNV8385 CNV8386 CNV8387 CNV8388 CNV7218

61 62 63 64 65

Gear Arm Arm Arm Damper

CNV8389 CNV8391 CNV8390 CNV8392 CNV7313

66 67 68 69 70

Damper Arm Arm Guide Guide

CNV7314 CNV8394 CNV8395 CNV8396 CNV8397

71 72 73 74 75

Holder Arm Gear Damper Motor Unit(M1)

CNV8398 CNV8402 CNV8400 CNV7618 CXC4440

76 77 78 79 80

Chassis Unit Screw Unit Gear Unit Arm Unit Arm

CXC2318 CXB8729 CXC2397 CXC2316 CND1896

81 82 83 84 85

Arm Motor Unit(M2) Bracket ••••• Screw(M2x5)

CND1894 CXB8933 CNC9985

86 87 88 89 90

Screw Screw ••••• Washer Pickup Unit(P10)(Service)

YE20FTC CXX1641

91 92 93

Screw Spring Clamper

IMS26P030FTC CBL1635 CNV8372

6

B

C

D

EBA1028 JFZ20P020FTC JGZ17P022FTC

E

F

DEH-2790MP/XN/ID 5

A

7

8

13

1

2

3

4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM A

A TUNER AMP UNIT VDD

IC 3 EEPROM 5.0V

5V

OSC

ANTENNA

B

CN401

AM ANT

1

1

NC

NC

NC

NC

18 19 20 21

DO

14

NC

CK

11

CE1

DI

10 9 8

SL

CE2

NC

5

ROM_VDD

13

IC 5 3.3V ←

7 6

FM/AM TUNER UNIT

LPF

FMRF

ATT Rch

2

IC 1 3.3V

FM ANT ATT FMRF

Lch

MIXER, IF AMP

23

DET, FM MPX

RF adj

ANT adj

AUDIOGND

NC

12

15

22

16

VDD_3.3

DGND

2

CF52

VCC

OSCGND

C

RFGND

T51

E

IC 4 3.3V 2.5V 2.5V ←

3

24

IC 2 2.5V

3.3V

17

4

TUN L

2

CDL

3

I

I

TUN 3.3V VCC

C CD CORE UNIT(S10.1) PICKUP UNIT (P10)(SERVICE) V3R3D

CN101

LASER DIODE

LDMD

D

15

15

5

5

142 Q101 143

FOCUS ACT. MONITOR TRACKING ACT. DIODE

E,F FOP 1 TOP 4 LD+

14

1 4

M2 LOADING/CARRIAGE MOTOR

LOUT

31

14 CD L

10

FOP TOP FD,TD

14

SYSTEM C

SD,MD

X701

IC 6 PE

12 FOP 13 TOP M1 SPINDLE MOTOR

CN651

CN901 RF AMP, CD DECODER, LOUT MP3 AND WMA DECODER, DIGITAL SERVO/DATA PROCESSOR

AC,BD

HOLOGRAM UNIT

IC 201 UPD63763GJ

LD PD

12 X1

CD DRIVER

M

16 SOP 15 SOM 18 LCOP 17 LCOM

M

13

LOEJ CONT

22

53

9

47

X2

MICRO COMPUTER reset

LOEJ

RESET

14

IC 701 PE5454A

E

30 97

RESET

A

BRST,BRXEN,BSRQ

VD

12EJ 8EJ DSCSNS

BRST,BRXEN,BSRQ,BDATA,BSCK

BDATA,BSCK VD

31

9

CONT

IC 301 BA5835FP 32

15

VDCONT

3

21

4

20

Q991

VD

B.UP 3

Q992

4 5

49

2

HOME

78

VDSENS VDCONT S904 12EJ

S905 S901 S903 8EJ DSCSNS HOME

3

IC 203 NJM2885DL1-33

1

3.3V REGULATOR

5

5

19

2

22

VDCONT

3V REGULATOR 3VDD

V3R3D

19

VD2

3

IC 703

2

VDD

VDD

S-812C33AUA-C2N VDD

VD2

F

14

DEH-2790MP/XN/ID 1

2

3

4

VDSENS

5

6

7

8

A

CN352 RESET IC 961 S-80834CNY

RESET

A

R Lch VDD

REAR OUTPUT

2

Q352

RESET

60

TUNPDO

11

LDET

61

TUNPDI

12

TUNPDI LDET

TUNPDO 76 SL 13 TUNPCK

SL TUNPCK CE1

VDD REGULATOR

56 TUNPCE1 55 TUNPCE2

CE2

Q911 VDD

B

Q912

SYSTEM CONTROLLER IC 601(1/2) PE5447A

DALMON

32

BACKUP SENSE BSENS ASENS

64

BSENS

63

ASENS

CN901

B.UP

1

FUSE

1

10A

Q931

ACC

BACK UP

3

3

ACC

ACC SENSE 2

2

10

10

12

12

9

9

11

11

6

6

GND

B.UP

POWER AMP ELECTRONIC VOLUME/ SOURCE SELECTOR

TUN L

2

CDL

3

IN1-L

IN2-L

F Lch

IC 151 PML010A

R Lch

10

14

11

12

FLIN

20 6

IC 302 PAL007A

FLFL+

RLIN

RLRL+

VCK, VDT, VST

22

MUTE

STBY 4

BREM

23 21 3 5 25

B. REMOTE

C

FLFL+ RLRL+

B.REM

VCC

MUTE

TUN 3V REG.

Q452(1/2)

SYS 8V REG. Q921

TU 3.3V

IC 901 BA33BC0FP

B.UP Q923

MUTE Q452(2/2) MUTE

SYSPW

48

SYSPW

43

SYSPW

D

SYSTEM CONTROLLER IC 601(2/2) PE5447A

X1 X2

70 69

X601 12.58291MHz

B CN831

KEYBOARD UNIT

CN1801

Q801 5

VDD

SWVDD 78

VDSENS

INTRQ

DSENS

21

SWVDD

66

SOURCE

65

DSENS

SWVDD

5

SW5V

E

SOURCE

6

8

SOURCE

DSENS

6

8

Q821 B.UP

7

ILM

7

KEY MATRIX

Q822 ILMPW

22

KEY DATA DPDT KYDT

9 8

4 3

DPDT KYDT

18

4

20

3 SW5V

10 17 56

X0

22

DPDT KYDT VLCD REM VDD

LCD DRIVER/ KEY CONTROLLER IC 1801 PD6340A

X1

23

X1801 5MHz

F LCD

DEH-2790MP/XN/ID 5

6

7

8

15

1

2

3

4

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".

A

A-a

A-b

A-a

Large size SCH diagram

C A-a

A-a

A-b

CN901

Guide page

A-b

Detailed page

B

dsene

VSS

source

DEH-2750MP/XN/GS DEH-2790MP/XN/ID

AVDD

bsrq

DEH-2770MP/XN/CS

AVREF1

FM/AM TUNER UNIT

C

D STRKEY2 BSI BDATA

RECEIVE

brxen

brst

XTALEN

BSCK

E NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors.

Decimal points for resistor and capacitor fixed values are expressed as : 2.2 ← 2R2 0.022 ← R022

B CN1801

The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

F

A 16

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

A-b A

A

TUNER AMP UNIT

>

B

C

> CEK1208 10A

BACKUP GND ACC

B.REM

D

RL— FL— RL+ FL+ RR— FR— RR+ FR+

E

F

A DEH-2790MP/XN/ID 5

6

7

8

17

A-a

FM/AM TUNER UNIT

18

1

C CN901

2

2

3

1

B

DEH-2790MP/XN/ID

3

4

DEH-2750MP/XN/GS DEH-2790MP/XN/ID

DEH-2770MP/XN/CS

A-a A-b

VSS

A-b

AVREF1

1 4

A

2 3

C

D

E

F source

dsene AVDD

bsrq

5

5

6

CN1801

B

STRKEY2

4

A-a A-b

Decimal points for resistor and capacitor fixed values are expressed as : 2.2 ← 2R2 0.022 ← R022

BSCK

BDATA

BSI

RECEIVE

3 6

The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors.

DEH-2750MP/XN/GS DEH-2790MP/XN/ID

5 7

7

8

A

6

A-b

brxen

brst

B

C

D

E

F

FM/AM TU

A-a

DEH-2790MP/XN/ID

8

19

XTALEN

A-a A-b

C

A

20 >

TUNER AMP UNIT

A-b

1 >

2 BACKUP

A

B

D

E

F

1

2

3

DEH-2790MP/XN/ID

3

4 B.REM

ACC

3

GND

2

CEK1208 10A

1 4

3 A-a A-b

> CEK1208 10A

BACKUP

4

5

FR+

RR+

FR—

RR—

FL+

RL+

FL—

RL—

B.REM

ACC

GND

5 6

5

6

7

7

8

A

B

C

D

E

F

6

DEH-2790MP/XN/ID

A-b

8

21

1

2

3

4

3

4

3.3 KEYBOARD UNIT A

B

C

D

E

F

B 22

DEH-2790MP/XN/ID 1

2

5

6

7

8

A

B

KEYBOARD UNIT

B

A CN831

C

D

E

F

B DEH-2790MP/XN/ID 5

6

7

8

23

1

2

3

4

3.4 CD MECHANISM MODULE(GUIDE PAGE) A

F

T

C

S

C-a

PICKUP UNIT(P10)(SERVICE) %

B

F F F T T

T F T

#

T F

@

F T

C

D

3 $

2

S

T

1

7

9 C F

E

8 0

M1 CXC4440 SPINDLE MOTOR

4

5

TY

S S

F F

C

T

S

C

CD DRIVER

C

M2 CXB8933 LOADING /CARRIAGE MOTOR

S

T

C

F

C 24

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

A

C-b

SWITCHES: CD CORE UNIT(S10.1) S901:HOME SWITCH..........ON-OFF S903:DSCSNS SWITCH......ON-OFF S904:12EJ SWITCH.............ON-OFF S905:8EJ SWITCH...............ON-OFF

ras

B

The underlined indicates the switch position.

SIGNAL LINE F T C S

!

FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE

C

CD CORE UNIT(S10.1)

3.3V REGULATOR

C

D

SRAMLEVEL2

MICRO COMPUTER

A

3V REGULATOR

SRAMLEVEL1

CN651

SRAMLEVEL0

E 6

TYPE_A/D

^

&

F

C DEH-2790MP/XN/ID 5

6

7

8

25

F

C-a

26

PICKUP UNIT(P10)(SERVICE)

E

1

2

3 T

# @

C

F

F

2

T

T

T

T

T

B

F

F

%

C-b

F

F

C-a A-a C-b

1 3 4

A

1 2

D

DEH-2790MP/XN/ID

4

F

T

C

S

5

6

C

C T

T

F

F

0

9 8

7

$

4

7

4 5

7 C-a A-a C-b

CD DRIVER

5

C

S

3

S

S

F

T

6

M2 CXB8933 LOADING /CARRIAGE MOTOR

M1 CXC4440 SPINDLE MOTOR

1

2

3

2

C

5 8

A

6

C-b

B

C

D

E

F

C-a

DEH-2790MP/XN/ID

8

27

C

S

S

ras

!

C-a C-b

C

C-b

28

1

2 S

C

T

F

B

2

3.3V REGULATOR

C CD CORE UNIT(S10.1)

SPINDLE SERVO LINE

CARRIAGE SERVO LINE

TRACKING SERVO LINE

FOCUS SERVO LINE

SIGNAL LINE

The underlined indicates the switch position.

SWITCHES: CD CORE UNIT(S10.1) S901:HOME SWITCH..........ON-OFF S903:DSCSNS SWITCH......ON-OFF S904:12EJ SWITCH.............ON-OFF S905:8EJ SWITCH...............ON-OFF

1 3

3

4

A

D

E

F

1

2

DEH-2790MP/XN/ID

4

TYPE_A/D

MICRO COMPUTER

2

5

3

6 SRAMLEVEL0

SRAMLEVEL1

SRAMLEVEL2

C-a C-b

3V REGULATOR

6

&

^

6

CN651

A

5 7

4

7

8

A

B

C

D

E

F

5

6

C-b

DEH-2790MP/XN/ID

8

29

1

2

- Waveforms A

1 DSCSNS 2 8SNS 3 12SNS 4 LOEJ

B

500ms/div 1 DSCSNS 5 CLCONT 4 LOEJ 6 VD

5V/div 5V/div 5V/div 10V/div

500ms/div 1 DSCSNS 2 8SNS 3 12SNS 4 LOEJ

5V/div 5V/div 5V/div 5V/div

8 cm CD Loading operation

Ref.: GND

Ref.: GND

Ref.: GND

Mode: Normal

Mode: Normal

Mode: Normal

1V/div 2s/div 500mV/div 500mV/div

7 SIN 8 CIN 9 TIN

7 SIN 8 CIN 9 TIN

1V/div 1s/div 500mV/div 500mV/div

500ms/div

1V/div 2s/div 500mV/div 500mV/div

12 cm CD-DA setup operation after loading

12 cm CD-ROM(1 session) setup operation after loading

12 cm CD-ROM(3 sessions) setup operation after loading

Ref.: REFO

Ref.: REFO

Ref.: REFO

Mode: Normal

Mode: Normal

Mode: Normal

200mV/div 500ms/div @ TE 2V/div # FE 2V/div

500mV/div 200ms/div # FE 500mV/div 0 FIN @ TE 9 TIN

12 cm CD-DA Source On setup operation

Source On setup operation

Ref.: REFO

Ref.: REFO

Ref.: REFO

Mode: Normal

Mode: Normal

Mode: Normal

# FE 0 FIN @ TE 9 TIN

E

Note : 1. The encircled numbers denote measuring points in the circuit diagram. 2. Reference voltage REFO1(1.65V)

12 cm CD Loading operation

0 FIN ! RFOK 7 SIN

D

4

12 cm CD Loading operation

7 SIN 8 CIN 9 TIN

C

5V/div 5V/div 5V/div 5V/div

3

500mV/div 20ms/div 500mV/div 500mV/div 500mV/div

$ MDX 7 SIN

500mV/div 20ms/div 500mV/div 500mV/div 500mV/div

CD-DA Play operation

1V/div 50ms/div 200mV/div

$ MDX 7 SIN

2V/div 1V/div

5µs/div

CD-ROM play operation(Regular track Jump)

Spindle waveform during play operation

Spindle waveform during play operation (Wider)

Ref.: REFO

Ref.: REFO

Ref.: REFO

Mode: Normal

Mode: Normal

Mode: Normal

F

30

DEH-2790MP/XN/ID 1

2

3

4

5

0 FIN # FE

6

500mV/div 200ms/div @ TE 500mV/div % RFAGC

7

500mV/div 2ms/div 500mV/div

% RFAGC @ TE 9 TIN

8

1V/div 500µs/div 500mV/div 500mV/div

Focus Search waveform

Track Open waveform

1 Track Jump waveform

Ref.: REFO

Ref.: REFO

Ref.: REFO

Mode: TEST

Mode: TEST

Mode: TEST

A

B

% RFAGC @ TE 9 TIN

1V/div 500µs/div % RFAGC 500mV/div @ TE 500mV/div 9 TIN

1V/div 1ms/div 500mV/div 500mV/div

% RFAGC @ TE 9 TIN

1V/div 2ms/div 500mV/div 500mV/div

4 Tracks Jump waveform

10 Tracks Jump waveform

32 Tracks Jump waveform

Ref.: REFO

Ref.: REFO

Ref.: REFO

Mode: TEST

Mode: TEST

Mode: TEST

C

% RFAGC @ TE 8 CIN 7 SIN

200ms/div ^ LOUT 1V/div 1V/div & ROUT 500mV/div 2V/div

Search operation(Outter to Inner)

1V/div 1V/div

200µs/div 1 DSCSNS 2 8SNS 3 12SNS 4 LOEJ

Analog audio waveform

5V/div 5V/div 5V/div 5V/div

500ms/div

12 cm CD Eject operation

D Ref.: REFO

Ref.: AGND

Ref.: GND

Mode: Normal

Mode: Normal

Mode: Normal

1 DSCSNS 5V/div 5 CLCONT 5V/div 4 LOEJ 5V/div

500ms/div 1 DSCSNS 2 8SNS 3 12SNS 4 LOEJ

5V/div 5V/div 5V/div 5V/div

500ms/div 7 SIN 8 CIN 9 TIN

1V/div 500ms/div 500mV/div 500mV/div E

12 cm CD Eject operation

8 cm CD Eject operation

CD-DA >> CD-ROM mode change(Band key)

Ref.: GND

Ref.: GND

Ref.: REFO

Mode: Normal

Mode: Normal

Mode: Normal

F

DEH-2790MP/XN/ID 5

6

7

8

31

1

7 SIN 8 CIN 9 TIN

A

2

3

1V/div 500ms/div % RFAGC 500mV/div 9 TIN 500mV/div @ TE 0 FIN

1V/div 1V/div 1V/div 1V/div

CD-ROM >> CD-DA mode change(Band key)

Black dot(800µm) during play

Ref.: REFO

Ref.: REFO

Mode: Normal

Mode: Normal

4

500µs/div

B

C

D

E

F

32

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

A

B

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

33

1

2

3

4

4. PCB CONNECTION DIAGRAM

4.1 TUNER AMP UNIT A

NOTE FOR PCB DIAGRAMS 1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 2.Viewpoint of PCB diagrams

A

TUNER AMP UNIT

CORD AS

Capacitor

Connector

SIDE A B Chip Part

P.C.Board

1

3

5

7 9 11 13 15

2

4

6

8 10 12 14 16

SIDE B

C

D

E

C

CN901

B

CN1801

F

A 34

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

A

SIDE A CORD ASSY

9 11 13 15

1

0 12 14 16

2

3

4

ANTENNA

RCA

B

2

1

FM/AM TUNER UNIT

C

D

E

F

FRONT

A DEH-2790MP/XN/ID 5

6

7

8

35

1

A

A

2

3

4

TUNER AMP UNIT

1

B

1

C

D

PCL TEST

E

F

A 36

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

A

SIDE B

B

C

D

T

E

F

A DEH-2790MP/XN/ID 5

6

7

8

37

1

2

3

4

4.2 KEYBOARD UNIT SIDE A

BAND

DISPLAY

LEFT

DOWN

UP

EJECT

RIGHT

KEYBOARD UNIT AUDIO

B A

6

LOC

B

3

4

5

C

VOL-

VOL+

CLOCK

E

SRC

BTB

1

2

D

F

B 38

DEH-2790MP/XN/ID 1

2

3

4

5

B

6

7

8

SIDE B

KEYBOARD UNIT

A

B

C

A

CN831 D

E

F

B DEH-2790MP/XN/ID 5

6

7

8

39

1

2

3

4

4.3 CD CORE UNIT(S10.1)

C

CD CORE UNIT(S10.1)

SIDE A

A

M2 LOADING /CARRIAGE MOTOR

B

M1 SPINDLE MOTOR

A

C

PICKUP UNIT(P10)(SERVICE)

CN651

D

HOME

E

FE REFO1

F

C 40

DEH-2790MP/XN/ID 1

2

3

4

5

C

6

7

CD CORE UNIT(S10.1)

8

SIDE B A

8EJ

12EJ

DSCSNS B

C

D

E

F

C DEH-2790MP/XN/ID 5

6

7

8

41

1

2

3

4

5. ELECTRICAL PARTS LIST A

NOTE: • Parts whose parts numbers are omitted are subject to being not supplied. • The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS..... • The > mark found on some component parts indicatesthe importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Circuit Symbol and No.

B

Circuit Symbol and No.

Part No.

A Unit Number:CWM9693(GS,ID) Unit Number:CWM9970(CS) Unit Name:Tuner Amp Unit MISCELLANEOUS C

D

E

F

(B,131,81) IC (A,92,131) IC (B,84,58) IC (B,140,25) IC (A,55,77) IC

PML010A PAL007A PE5447A BA33BC0FP S-80834CNY

Q Q Q Q Q

352 452 801 821 822

(B,158,125) Transistor (B,136,124) Transistor (B,81,22) Transistor (B,39,12) Transistor (B,28,14) Transistor

UMH3N UMD2N 2SA1036K 2SA1036K DTC114EU

Q Q Q Q Q

911 912 921 923 931

(A,5,112) Transistor (B,11,141) Transistor (A,5,100) Transistor (B,22,75) Transistor (B,58,103) Transistor

2SD2396 UMD2N 2SD2396 UMD2N UMX1N

Q Q D D D

991 992 551 552 831

(A,5,65) Transistor (B,19,54) Transistor (A,59,122) Diode (A,57,122) Diode (A,107,17) Diode

2SD2396 UMD2N MPG06G-6415G3 MPG06G-6415G3 1SS270

D D D D D

832 833 834 835 836

(A,109,17) Diode (A,114,17) Diode (A,107,9) Diode (A,109,9) Diode (A,114,9) Diode

1SS270 1SS270 1SS270 1SS270 1SS270

D D D D D

837 838 901 902 911

(A,112,17) Diode (A,112,9) Diode (A,33,128) Diode (A,33,125) Diode (A,16,103) Diode

1SS270 1SS270 MPG06G-6415G3 MPG06G-6415G3 MPG06G-6415G3

D D D D D

912 921 931 932 991

(A,11,125) Diode (A,22,84) Diode (A,67,112) Diode (A,49,109) Diode (A,17,62) Diode

HZS6L(B2) HZS9L(B3) HZS7L(C3) HZS7L(A1) HZS7L(C3)

(A,142,66) Inductor

LAU2R2K

42

401 402 404 601

(A,154,54) Inductor (A,143,91) Inductor (B,157,97) Inductor (A,90,81) Ferri-Inductor

L L L L X

602 651 801 901 601

(A,101,63) Inductor (A,47,54) Ferri-Inductor (A,90,21) Inductor

Part No. LAU2R2K LAU2R2K LCTAW4R7J2520 LAU100K

LAU2R2K LAU100K LAU2R2K (A,34,104) Choke Coil 600µH CTH1280 (A,100,68) Radiator 12.58291MHz CSS1402

>FU352 AR401 >

IC 151 IC 302 IC 601 IC 901 IC 961

L 151

L L L L

(B,141,131) Fuse 3A (A,158,106) Surge Protector Fuse 10A FM/AM Tuner Unit

CEK1286 DSP-201M-S00B CEK1208 CWE1912

RESISTORS R R R R R

151 152 153 154 157

(A,117,90) (A,120,90) (B,123,102) (B,121,102) (B,124,94)

RD1/4PU471J RD1/4PU471J RS1/16S471J RS1/16S471J RAB4C102J

R R R R R

301 353 354 357 358

(B,90,100) (B,142,124) (B,162,124) (B,143,129) (B,162,131)

RS1/16S153J RS1/16S331J RS1/16S331J RS1/16S223J RS1/16S223J

R R R R R

405 407 414 420 421

(B,153,59) (B,157,84) (B,157,87) (B,96,44) (B,158,76)

RS1/16S681J RAB4C681J RS1/16S681J RS1/16S681J RS1/16S473J

R R R R R

454 455 456 457 601

(B,133,123) (B,137,127) (B,137,129) (B,96,46) (B,98,54) (GS,ID)

RS1/16S103J RS1/16S153J RS1/16S221J RS1/16S681J RS1/16S473J

R R R R R

602 606 607 609 610

(B,105,52) (CS) (B,108,58) (B,102,59) (B,100,40) (B,96,48)

RS1/16S473J RS1/16S104J RS1/16S222J RS1/16S473J RS1/16S681J

R R R R R

611 614 633 653 654

(B,109,70) (B,69,63) (B,51,70) (B,44,37) (B,73,51)

RS1/16S473J RS1/16S104J RS1/16S104J RS1/16S104J RS1/16S102J

(A,69,54)

RD1/4PU102J

R 655

DEH-2790MP/XN/ID 1

2

3

4

5

Circuit Symbol and No. R R R R

658 659 660 662

(B,105,37) (B,74,40) (B,90,44) (B,109,38)

6

7

Part No. RS1/16S473J RS1/16S221J RS1/16S221J RS1/16S682J

R R R R R

663 671 801 802 803

(B,68,41) (B,57,38) (B,77,22) (B,81,25) (B,93,18)

RS1/16S682J RS1/16S104J RS1/16S153J RS1/16S153J RS1/16S222J

R R R R R

821 822 823 833 834

(B,32,14) (B,68,18) (B,35,11) (A,78,7) (A,80,7)

RS1/16S562J RS1/16S102J RS1/16S103J RD1/4PU222J RD1/4PU222J

R R R R R

835 836 837 838 841

(A,68,15) (A,74,18) (A,78,15) (B,87,85) (B,47,11)

RD1/4PU102J RD1/4PU104J RD1/4PU103J RS1/16S102J RS1/16S1R0J

R R R R R

848 851 852 911 912

(A,103,44) (A,100,44) (B,89,85) (B,16,137) (A,10,130)

RD1/4PU102J RD1/4PU102J RS1/16S102J RS1/16S223J RD1/4PU152J

R R R R R

923 926 931 932 933

(A,17,86) (B,11,97) (B,63,108) (B,63,106) (A,52,112)

RD1/4PU821J RS1/16S221J RS1/16S473J RS1/16S104J RD1/4PU102J

R R R R R

934 935 936 940 941

(B,58,106) (B,53,102) (B,53,106) (B,84,78) (B,86,78)

RS1/16S472J RS1/16S473J RS1/16S223J RS1/16S104J RS1/16S104J

R R R R R

961 962 991 992 993

(B,65,74) (B,61,74) (A,17,57) (A,12,65) (B,37,16)

RS1/16S102J RS1/16S822J RD1/4PU271J RD1/4PU221J RS1/16S222J

R 994

(B,44,41)

RS1/16S472J

CAPACITORS

Circuit Symbol and No.

8

Part No.

C 353 C 354 C 401

(A,132,116) (A,132,107) (B,158,66)

CEJQ2R2M50 CEJQ2R2M50 CKSRYB103K50

C C C C C

402 403 404 405 409

(B,152,56) (A,149,54) (A,148,91) (B,165,93) (B,144,54)

CKSRYB103K50 CEJQ470M6R3 CEJQ101M10 CKSRYB103K50 CCSRCH470J50

C C C C C

420 451 601 603 604

(B,102,40) (A,129,131) (B,66,79) (A,98,85) (B,96,71)

CCSRCH470J50 CEJQ330M10 CKSRYB103K50 CEJQ4R7M35 CCSRCH200J50

C C C C C

605 606 607 608 610

(B,99,71) (B,106,67) (B,98,63) (B,88,42) (A,98,79)

CCSRCH200J50 CKSRYB104K16 CCSRCH101J50 CCSRCH470J50 CEJQ4R7M35

C C C C C

613 651 801 832 901

(B,97,75) (B,54,41) (B,91,18) (B,43,9) (A,34,136)

CKSRYB105K6R3 CKSRYB683K16 CKSRYB104K16 CKSRYB104K16 CEAT332M16(P45)

C C C C C

911 912 913 921 922

(A,14,92) (B,16,141) (A,20,140) (A,22,62) 330µF/16V (A,21,79)

CEJQ470M10 CKSRYB103K50 CEAT331M16 CCH1326 CEJQ101M16

C C C C C

923 961 963 981 983

(B,20,82) (B,51,78) (A,61,78) (B,130,21) (A,142,34)

CKSRYB103K50 CKSRYB473K50 CEJQ100M16 CKSRYB334K10 CEJQ470M10

(B,15,60) (A,14,50) (A,16,32)

CKSRYB473K50 CEJQ221M10 CEJQ221M10

A

C 991 C 992 C 994

C

D

B Unit Number: Unit Name:Keyboard Unit MISCELLANEOUS

C C C C C

151 152 153 154 155

(B,158,70) (B,158,72) (B,122,74) (B,141,75) (A,121,80)

CKSRYB224K10 CKSRYB224K10 CKSRYB105K6R3 CKSRYB105K6R3 CEJQ4R7M35

C C C C C

156 165 166 167 301

(A,141,80) (B,139,69) (A,136,67) (A,126,67) (A,130,125)

CEJQ4R7M35 CKSRYB104K16 CEJQ470M10 CEJQ100M16 CFTNA224J50

C C C C C

302 303 304 309 310

(A,126,107) (A,130,121) (A,120,107) (B,133,128) (B,135,132)

CFTNA224J50 CFTNA224J50 CFTNA224J50 CKSQYB225K10 CKSQYB225K10

C 312 C 313

(A,101,121) (B,98,138)

CEJQ100M16 CKSRYB104K16

IC 1801 D 1803 D 1804 D 1805 D 1806

(B,26,93) IC (A,37,84) LED (A,37,96) LED (A,37,108) LED (A,37,48) LED

D D D D X

(A,37,60) LED (A,37,72) LED (A,37,120) LED (A,23,119) LED

1807 1808 1809 1810 1801

IL 1801 IL 1802

PD6340A SML-310PT SML-310PT SML-310PT SML-310PT

6

E

SML-310PT SML-310PT SML-310PT CL-490S-WF-SD (B,33,83) Ceramic Resonator 5.00MHz CSS1547

(B,20,20) Lamp 40mA,14V CEL1651 (B,20,150) Lamp 40mA,14V CEL1651 LCD CAW1848 F

RESISTORS R 1801 R 1802

(B,22,59) (B,24,59)

RS1/16S222J RS1/16S222J

DEH-2790MP/XN/ID 5

B

7

8

43

1

2

Circuit Symbol and No.

3

Part No.

R 1803 R 1805 R 1807

(B,14,158) (B,29,155) (B,21,32)

RS1/16S0R0J RS1/16S0R0J RS1/4SA471J

R 1808 R 1809 R 1810

(B,18,32) (B,32,122) (B,36,91)

4

Circuit Symbol and No.

Part No.

R 310 R 601

(A,35,88) (B,43,59)

RS1/16SS183J RS1/16S101J

RS1/4SA471J RS1/4SA471J RS1/16S104J

R R R R R

602 606 607 608 705

(B,41,62) (B,44,67) (B,43,56) (B,36,67) (B,50,59)

RS1/16S101J RS1/16S0R0J RS1/16SS0R0J RS1/16SS0R0J RS1/16SS221J

CKSRYB103K50 CKSRYF104Z25

R R R R R

706 707 708 710 711

(B,57,61) (A,62,47) (B,50,57) (A,28,77) (B,44,53)

RS1/16SS221J RS1/16SS473J RS1/16SS221J RS1/16SS102J RS1/16SS221J

R R R R R

714 716 719 720 724

(B,51,53) (A,63,56) (B,49,45) (B,46,52) (A,62,42)

RS1/16SS473J RS1/16SS472J RS1/16SS221J RS1/16SS471J RS1/16S473J

A

CAPACITORS C 1801 C 1802

B

(B,37,96) (A,18,124)

C Unit Number:CWX3096 Unit Name:CD Core Unit(S10.1) MISCELLANEOUS

C

IC 201 IC 203 IC 301 IC 701 IC 703

(A,39,24) (B,45,78) (A,49,88) (A,48,51) (A,30,44)

IC IC IC IC IC

UPD63763GJ NJM2885DL1-33 BA5835FP PE5454A S-812C33AUA-C2N

R R R R R

725 726 727 729 730

(B,57,43) (A,52,41) (B,50,54) (A,57,40) (A,65,41)

RS1/16SS222J RS1/16SS103J RS1/16SS473J RS1/16SS223J RS1/16SS473J

Q Q L L L

101 701 203 207 209

(A,20,22) (B,62,59) (A,53,32) (A,53,31) (A,26,20)

Transistor Transistor Inductor Inductor Inductor

2SA1577 UN2111 CTF1389 CTF1389 CTF1389

R R R R R

731 737 740 742 746

(A,53,41) (A,41,42) (A,35,46) (A,50,41) (B,60,56)

RS1/16SS104J RS1/16SS104J RS1/16SS473J RS1/16SS104J RS1/16SS104J

L X X S S

703 201 701 901 903

(A,64,49) Inductor

CTF1389

R R R R R

750 754 755 765 769

(A,39,59) (B,48,60) (A,43,61) (B,51,40) (B,48,40)

RS1/16SS473J RS1/16SS102J RS1/16SS102J RAB4CQ221J RAB4CQ221J

R R R R R

773 777 778 779 901

(B,39,37) (B,48,51) (B,48,52) (B,45,54) (B,52,65)

RAB4CQ221J RS1/16SS221J RS1/16SS221J RS1/16SS221J RAB4CQ221J

R R R R R

905 906 908 910 911

(B,54,60) (B,56,68) (B,45,69) (B,44,69) (B,40,73)

RS1/16SS221J RS1/16SS221J RS1/16SS0R0J RS1/16SS0R0J RS1/16SS102J

S 904 S 905 D

E

(A,51,35) Ceramic Resonator 16.934MHz CSS1603 (A,59,53) Ceramic Resonator 4.00MHz CSS1652

(A,15,43) Switch(HOME) CSN1067 (B,53,100) Switch(DSCSNS) CSN1068 (B,35,108) Switch(12EJ) (B,48,109) Switch(8EJ)

CSN1067 CSN1067

RESISTORS R R R R R

101 102 103 201 202

(A,22,24) (A,22,26) (A,25,25) (A,53,16) (A,55,21)

RS1/10SR2R4J RS1/10SR2R4J RS1/10SR2R7J RS1/16SS102J RS1/16SS333J

R R R R R

221 222 225 226 227

(B,31,18) (B,26,18) (A,27,8) (A,27,7) (B,33,10)

RS1/16SS103J RS1/16SS103J RS1/16SS103J RS1/16SS393J RS1/16SS562J

R R R R R

228 229 232 241 243

(B,36,8) (B,34,8) (B,35,10) (B,42,28) (B,44,28)

RS1/16SS122J RS1/16SS472J RS1/16SS122J RS1/16SS333J RS1/16SS333J

R R R R R

245 301 302 304 305

(A,39,38) (A,48,78) (A,42,78) (A,50,78) (A,42,77)

RS1/16SS333J RS1/16SS183J RS1/16SS822J RS1/16SS183J RS1/16SS822J

R 307 R 308 R 309

(A,36,85) (A,32,83) (A,38,89)

RS1/16SS183J RS1/16SS183J RS1/16SS183J

F

44

CAPACITORS C C C C C

103 105 108 110 201

(B,14,8) 100µF/16V (A,19,15) (B,39,16) (A,18,6) (A,51,14)

CCH1504 CKSSYB104K10 CKSSYB104K10 CKSSYB104K10 CKSSYB102K50

C C C C C

202 203 204 205 208

(B,50,17) (A,55,23) (B,28,22) (A,53,25) (B,44,25)

CKSSYB104K10 CKSSYB104K10 CEVW220M6R3 CKSSYB104K10 CKSSYB104K10

C C C C C

209 212 216 217 218

(A,54,29) (A,45,37) (A,25,8) (A,28,12) (A,25,7)

CKSSYB104K10 CKSRYB105K10 CKSSYB332K50 CKSSYB104K10 CKSSYB473K10

DEH-2790MP/XN/ID 1

2

3

4

5

Circuit Symbol and No.

6

7

8

Part No.

C C C C C

219 220 221 222 223

(A,34,7) (A,33,11) (B,35,6) (B,35,8) (B,33,8)

CKSSYB104K10 CKSSYB182K50 CKSSYB104K10 CCSSCH560J50 CCSSCH4R0C50

C C C C C

224 225 226 227 228

(B,40,16) (B,45,14) (B,43,12) (A,45,10) (A,49,9)

CKSSYB104K10 CKSSYB103K16 CCSSCH680J50 CCSSCH470J50 CKSSYB103K16

C C C C C

234 237 239 242 243

(B,36,81) (B,38,29) (B,34,10) (B,58,32) (B,39,76)

CEVW221M4 CKSSYB104K10 CCSSCH220J50 CKSSYB104K10 CKSSYB104K10

C C C C C

244 246 251 260 301

(B,49,70) (A,23,19) (B,28,31) (A,54,25) (A,43,78)

CKSSYB104K10 CKSSYB104K10 CKSRYB102K50 CKSSYB104K10 CKSSYB221K50

C C C C C

302 303 304 305 307

(A,50,79) (A,37,85) (A,39,89) (B,34,92) (B,56,90)

CKSSYB221K50 CKSSYB472K25 CKSSYB103K16 CEVW101M16 CKSSYB104K10

C C C C C

601 602 701 703 706

(B,46,60) (B,41,65) (A,64,46) (B,50,61) (B,50,62)

CCSRCH102J50 CCSRCH102J50 CKSSYB104K10 CKSSYB103K16 CKSSYB104K10

C C C C C

707 712 714 716 722

(A,36,45) (A,22,42) (B,60,45) (A,61,40) (B,52,48)

CKSSYB104K10 CKSRYB224K16 CKSSYB104K10 CKSSYB103K16 CKSQYB475K6R3

C C C C C

723 903 906 907 910

(A,26,41) (B,56,70) (A,40,77) (A,47,76) (B,60,71)

CKSRYB105K10 CKSSYB471K50 CKSRYB224K16 CKSSYB103K16 CKSQYB225K10

A

B

C

D

Miscellaneous Parts List M 1 M 2

Pickup Unit(P10)(Service) Motor Unit(SPINDLE)

CXX1641 CXC4440 Motor Unit(LOADING/CARRIAGE) CXB8933 E

F

DEH-2790MP/XN/ID 5

6

7

8

45

1

2

3

4

6. ADJUSTMENT 6.1 CD ADJUSTMENT A

1) Cautions on adjustments • In this product the single voltage (3.3V) is used for the regulator. The reference voltage is the REFO1 (1.65V) instead of the GND. If you should mistakenly short the REFO1 with the GND during adjustment, accurate voltage will not be obtained, and the servo’s misoperation will apply excessive shock to the pickup. To avoid such problems: a. Do not mix up the REFO1 with the GND when connecting the (-) probe of measuring instruments. Especially on an oscilloscope, avoid connecting the (-) probe for CH1 to the GND. b. In many cases, measuring instruments have the same potential as that for the (-) probe. Be sure to set the measuring instruments to the floating state. c. If you have mistakenly connected the REFO1 to the GND, turn off the regulator or the power immediately.

B

• Before mounting and removing filters or leads for adjustment, be sure to turn off the regulator. • For stable circuit operation, keep the mechanism operating for about one minute or more after the regulator is turned on.

C

2) Test mode This mode is used to adjust the CD mechanism module. • To enter the test mode. While pressing the 4 and 6 keys at the same time, reset. • To exit from the test mode. Turn off the ACC and back up. Notes: a. During ejection, do not press any other keys than the EJECT key until the loaded disc is ejected. b. If you have pressed the (→) key or (←) key during focus search, turn off the power immediately to protect the actuator from damage caused by the lens stuck. c. For the TR jump modes except 100TR, the track jump operation will continue even if the key is released. d. For the CRG move and 100TR jump modes, the tracking loop will be closed at the same time when the key is released. e. When the power is turned off and on, the jump mode is reset to the single TR (91), the RF amp gain is set to 0dB, and the auto-adjustment values are reset to the default settings.

• In the test mode, any software protections will not work. Avoid applying any mechanical or electrical shock to the mechanism during adjustment. • The RFI and RFO signals with a wide frequency range are easy to oscillate. When observing the signals, insert a resistor of 1k ohms in series. • The load and eject operation is not guarantied with the mechanism upside down. If the mechanism is blocked due to mistaken eject operation, reset the product or turn off and on the ACC to restore it.

D

E

F

46

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

- Flow Chart [4]+[6]+Reset or [4]+[6]+BU+ACC

[KEY] Contents

A

Test Mode In

Display

[CD]or[SOURCE] Source On TRK

SEC

MIN

[BAND]

[3]

Power On

Power On

[2]

(T.Offset is adjusted)

[4]

(T.Offset is not adjusted)

RF AMP *1 Gain switching

SPINDLE *9 Speed switching

TRK 99 MIN 99 SEC 99

TRK GGMIN GGSEC GG

TRK SP MIN SP SEC SP

TRK 00 MIN00 SEC 00

B [BAND]

[3]

Power Off

Focus Close S curve check

TRK

MIN

SEC

TRK

[6] Focus Mode *2 switching TRK 0x MIN0x SEC 0x

91 MIN91 SEC 91

[1]

[→]

Tracking Servo Close

CRG+

TRK

or

[BAND]

[1]

Power Off

T.Close and AGC

T.Close

Applicable servomechanism

Applicable servomechanism

TRK

MIN

SEC

TRK

?tr

MIN

00 MIN00 SEC00 99 MIN99 SEC99

SEC

TRK

?min ?sec

?tr

MIN

TRK

TRK

[6]

or

00 MIN00 SEC00 99 MIN99 SEC 99

TRK

[3]

SEC

TRK

or

00 MIN00 SEC00 99 MIN 99 SEC 99

Automatic adjustment switching *3 TRK

TRK

?? MIN?? SEC ??

[→]

[←] CRG-

T.Balance adjustment /

TRK8x MIN8x SEC8x

TRK8x MIN8x SEC8x

TRK ?? MIN?? SEC ??

RF AGC coefficient display TRK ?? MIN ?? SEC ??

[2] *8

CRG-

CRG+

RF AGC /

?min ?sec

[←] *8

or

TRK 9x MIN 9x SEC 9x

or

[2] T.BAL coefficient display

TRK 9x MIN 9x SEC 9x

C [1] F,T,RF AGC *7

[BAND] Power Off TRK

MIN

[3]

F.Bias display switching

SEC

TRK

[6]

F,T AGC / F.Bias RF AGC

?? MIN?? SEC ??

TRK

?tr

MIN

SEC

?min ?sec

[→] *4 CRG/TR Jump +

CRG/TR Jump *5 value switching TRK

?tr

MIN

SEC

TRK

?min ?sec

?tr

MIN

SEC

?min ?sec

[←] *4 CRG/TR Jump TRK

?tr

MIN

SEC

?min ?sec

[2] Tracking Open TRK

or

8x MIN8x SEC 8x 9xMIN 9xSEC 9x

TRK

*6

[BAND]

[2]

Power Off

Tracking Open

TRK

MIN

SEC

TRK8x MIN8x SEC8x

or

TRK 9x MIN 9x SEC 9x

D

*1)

→

TYP TRK

MIN

SEC

*2) Focus Close

→

→

-6dB TRK 06 MIN 06 SEC 06

-12dB

Operation

[Key]

TRK 12 MIN 12 SEC 12

Test Mode

TRK 00 MIN 00 SEC 00 (TRK 99 MIN 99 SEC 99)

S.Curve check setting

→

TRK 01 MIN 01 SEC 01

[BAND] Power On / Off

F EQ measurement setting TRK 02 MIN 02 SEC 02

[→]

CRG + / TR Jump + (Direction of the external surface)

[←]

CRG - / TR Jump (Direction of the internal surface)

[1]

U.CLS and AGC and Applicable servomechanism / AGC, AGC display setting

[2]

RF Gain switching / Offset adjustment display / T.Balance adjustment / T.Open

[3]

Close, S.Curve / Rough Servo and RF AGC / F, T, RF AGC

[4]

SPDL 1X / 2X switching As for the double speed (2x), audio output cannot be supported.

[5]

Error Rate measurement

[6]

F.Mode switching / Tracking Close / CRG • TR Jump switching

*3) F.Offset Display → T.Offset Display → Switch to the order of the original display

*4) 1TR / 32TR / 100TR

*5) Single TR → 32TR → 100TR → CRG Move 9x(8x) : 91(81) 92(82) 93(83) 94(84) *6) Only at the time of CRG move, 100TR jump

*7) TRK/MIN/SEC → F.AGC → T.AGC → F Bias → RF AGC

E

1st - ON : ERR count Beginning (30Sec) 2nd - ON : BER display data [%]

*8) CRG motor voltage = 2[V]

*9) Applicability : A, B, C, D, E, F TYP(1X) → 2X → TRK

MIN

SEC

TRK 22 MIN 22 SEC 22

Applicability : G TYP(2X) →

1X TRK 11 MIN 11 SEC 11

TRK

MIN

SEC

1X

TRK 11 MIN 11 SEC 11

→

F

2X TRK 22 MIN 22 SEC 22

As for the double speed (2x), audio output cannot be supported

DEH-2790MP/XN/ID 5

6

7

8

47

1

2

3

4

6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT A

• Note : The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mechanism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, if the PU unit must be changed, the grating should be checked using the procedure below. • Purpose : To check that the grating is within an acceptable range when the PU unit is changed. • Symptoms of Mal-adjustment : If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to perform track search operations, or taking a long time for track searching.

B

• Method : • Measuring Equipment • Measuring Points • Disc • Mode

• Oscilloscope, Two L.P.F. • E, F, REFO1 • TCD-782 • TEST MODE

CD CORE UNIT(S10.1) C L.P.F. E

Xch 100kΩ

F

Oscilloscope

390pF

VREF

Ych

100kΩ 390pF

VREF L.P.F.

F E

D

REFO1

• Checking Procedure 1. In test mode, load the disc and switch the 3V regulator on. 2. Using the → and ← buttons, move the PU unit to the innermost track. 3. Press key 3 to close focus, the display should read "91". Press key 2 to implement the tracking balance adjustment the display should now read "81". Press key 3. The display will change, returning to "81" on the fourth press. 4. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase difference is within 75° . Refer to the photographs supplied to determine the phase angle. 5. If the phase difference is determined to be greater than 75° try changing the PU unit to see if there is any improvement. If, after trying this a number of times, the grating angle does not become less than 75° then the mechanism should be judged to be at fault. • Note Because of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the average angle. • Hint Reloading the disc changes the clamp position and may decrease the "wobble".

E

F

48

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

Ech → Xch 20mV/div, AC Fch → Ych 20mV/div, AC

Grating waveform

A

0°

30°

B

45°

60°

C

D

75°

90°

E

F

DEH-2790MP/XN/ID 5

6

7

8

49

1

2

3

4

6.3 ERROR MODE - Error Messages Error is displayed with number for Error cause when CD is inoperative or stops with Error during operation. The purpose is to reduce nonsense calls from users as well as to assist all related analysis and repair for defects at service station.

A

(1) Basic Display Method 1) When CSMOD (CD mode area for system) is SERRORM, Error code will be written in DMIN (minutes area for display), DSEC (seconds area for display). The same data shall be written in DMIN and DSEC. DTNO is blank as usual. 2) Display Example of Head Unit The following is about LCD display ability. xx is Error number. 8 digits ERROR–xx

B

6 digits ERR–xx

4 digits E–xx

OR Err–xx

(2) Error Code List No. Classification Contents 10 Electricity Carriage Home NG

Details • Cause CRG can’t move to the inner. CRG can’t move from the inner. → HOME SW failure, CRG movement failure. Focus can’t be caught. → Back of Disc / Severe dirt and vibration.

C

11

Electricity

Focus Search NG

12

Electricity

Spindle Lock NG Subcode NG

Not spindle, lock. Wrong subcode (can’t read). → Defective Spindle. Scratch and dirt on Disc. Intense vibration.

RF-amp NG

The appropriate gain of the RF amp cannot be obtained. → Defective spindle. → Scratched or dirty disc. Severe vibration. Abnormal CD signals.

17

D

Electricity

→ Blanc CD-R disc. Disc inserted upside down. AGC protection doesn’t work, out of Focus soon.

Setup NG

→ Scratch on Disc/Severe dirt and vibration. 22

Disc

Impossible to play

There is no playable MP3 or WMA file present in a disc.

23

Disc

File Format NG

Contents are stored in an incompatible file format. → The contents in a CD-ROM disc inserted are recorded in a file format other than ISO9660 Level-1 and 2.

30

Electricity

Search Time Out

Can’t reach the target address.

44

Disc

Impossible to play

There is no playable TRK No. present in a disc. → All TRK Nos. In a disc inserted are specified as a track which should be skipped, in the track skip information.

50

Mecha

Disc Load / Eject NG

Disc loading/ejection cannot be complete. → Foreign objects entered into the mechanism. Disc caught in between during loading/ejection.

A0

System

Power NG

→ No MP3 or WMA file exists in a CD-ROM disc inserted.

→ Defective CRG/tracking, or scratch on Disc. E

Power supply (VD) isn’t connected to the ground. → Defective SW transistor. Abnormal power (failed connector) Note : Error doesn’t display in mechanism only. (CD off causes mechanism off) If TOC can’t be read, error wouldn’t occur, but mechanism still continues its operation. The upper digits of error code is mainly classified by 3 kinds as follows: 1x: Setup related error, 3x: Search related error, Ax: Other errors.

F

50

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

6.4 SYSTEM MICROCOMPUTER TEST PROGRAM A

- PCL Output In the normal operation mode (with the detachable panel installed, the ACC switched ON, the standby mode cancelled), shift the TESTIN (Pin 15) terminal to H. The clock signal is output from the PCL terminal (Pin 14). The frequency of the clock signal is 786.432kHz that is one 16th of the fundamental frequency. The clock signal should be 786.432kHz ± 31.5Hz. If the clock signal is out of the range, the X'tal (X601) should be replaced with new one.

B

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

51

1

2

3

4

7. GENERAL INFORMATION 7.1 DIAGNOSIS A

7.1.1 DISASSEMBLY - Removing the Case (not shown) 1. Remove the Case.

CD Mechanism Module

- Removing the CD Mechanism Module (Fig.1)

1

Remove the four screws.

B

1

Disconnect the connector and then remove the CD Mechanism Module.

1 - Removing the Grille Assy (Fig.1)

2

Release the two latchs and then remove the Grille Assy.

1 C

2

2

1

Fig.1

Grille Assy - Removing the Tuner Amp Unit (Fig.2)

1

Remove the screw.

2

2

D

2

Remove the three screws.

3

Straighten the tabs at three locations indicated.

4

Remove the screw and then remove the Tuner Amp Unit.

2

4 1

E

3

3

3

Tuner Amp Unit

Fig.2

F

52

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

- How to hold the Mechanism Unit 1. Hold the top and bottom frame. 2. Do not squeeze top frame's front portion too tight, because it is fragile.

A

B

Do not squeeze.

- Removing the Upper and Lower Frames 1. With a disc clamped, remove the four springs (A), the two springs (B), the two springs (C), and the four screws. 2. To remove the upper frame, open it on the fulcrum A. 3. While lifting the carriage mechanism, remove the three dampers. 4. With the frames removed, insert the connectors coming from the main unit and eject the disc. Caution: Before installing the carriage mechanism in the frames, be sure to apply some alcohol to the dampers and set the mechanism to the clamp mode.

Upper Frame

A

A

C C

A

A

Carriage Mechanism B Damper Lower Frame

C

A

D

Damper B

Damper

E

F

DEH-2790MP/XN/ID 5

6

7

8

53

1

2

3

4

- Removing the Pickup Unit 1. Apply shorting solder to the Pickup flexible cable. Disconnect the cable. 2. Set the mechanism to the clamp mode. 3. Remove the lead wires from the inner holder. 4. Remove the washer, styling holder, change arm, and pickup lock arm. 5. While releasing from the hook of the inner holder, lift the end of the feed screw. Caution: In assembling, move the planet gear to the load/eject position before setting the feed screw in the inner holder.

A

Shorting Solder

B

Washer

C

Pickup Lock Arm Change Arm

Styling Holder

Feed Screw

D

E

Inner Holder Planet Gear

F

54

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

7.1.2 CONNECTOR FUNCTION DESCRIPTION

A

16 14 12 10 8 6 4 2 15 13 11 9 7 5 3 1

10A B

ANTENNA JACK

RCA OUTPUT

Pin No. 1 2 3 4 5 6 7 8

B.UP GND ACC NC NC B.REM NC NC

Pin No. 9 10 11 12 13 14 15 16

RLFLRL+ FL+ RRFRRR+ FR+

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

55

1

2

3

4

7.2 PARTS 7.2.1 IC - Pin Functions(PE5447A)

A

Pin No. 1 2, 3 4 5, 6 7 8 9 10 11 12 13 14 15 16 17 18 19, 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44, 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

B

C

D

E

Pin Name MODEL1 NC AVSS NC AVREF1 KYDT DPDT ADPW TUNPDI TUNPDO TUNPCK PCL TESTIN BSI BDATA BSCK NC swvdd ILMPW NC XRST XA0 XSTB XTALEN CONT LOEJ CLCONT NC DALMON VSS brst brxen NC ROMDATA ROMCLK ROMCS RECEIVE VDCONT NC SYSPW NC STRKEY2 NC MUTE ANTPW NC VST VDT VCK NC TUNPCE2 TUNPCE RDT RDSLK RDS57K RESET LDET

I/O I

I O O I O O O I I O I/O O O O O O O O O O O O I/O O O O O O O I O O O O O O O I I I I

Function and Operation Model select input Not used GND Not used VDD Display microcomputer data input Display microcomputer communication data output A/D converter power supply output PLL data input PLL data output PLL clock output Clock adjustment output Test program input P-BUS serial data input P-BUS serial data output P-BUS serial clock input/output Not used Display microcomputer chip select output Illumination power output Not used CD LSI reset control output CD LSI command data control output CD LSI strobe output CD LSI ceramic oscillator oscillation output Driver output Load/eject output Driver control output Not used Output for dark current reduction circuit GND B-PUS reset signal output P-BUS reception enable signal input/output Not used ROM collection data output ROM collection clock output ROM collection chip select output RDS decoder receiving output(Not used) VD output Not used System power output Not used Wired remote control input Not used System mute output Auto antenna control output Not used E.VOL strobe output E.VOL data output E.VOL clock output Not used PLL chip enable output 2 PLL chip enable output RDS LK input(Not used) RDS clock input(Not used) RDS 57K input(Not used) Reset PLL lock detection input

F

56

DEH-2790MP/XN/ID 1

2

3

4

5

Pin No. 62 63 64 65 66 67 68 69, 70 71 72 73 74 75 76 77 78 79 80

6

8

Function and Operation RDS clock input ACC sense input Back up sense input Grille detach sense input Source sense input GND VDD Crystal oscillator connection pin GND Not used VSS VDD VDD Signal level input Temperature detection input VD power supply short circuit input P-BUS serial pole request input Wired remote control input(Not used)

I/O I I I I I

Pin Name RCK asens bsens dsens source VSS VDD X2, 1 IC(VPP) NC VSS AVDD AVREF1 SL TEMP VDSENS bsrq STRKEY1

7

I I I I I

A

B

* PE5447A

80

61

IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction. 60

1

C

20 40

21

41

D

BA33BC0FP

Vref

Vref

+ E

OCP

TSD

1

2

3

OUT

NC

VCC

F

DEH-2790MP/XN/ID 5

6

7

8

57

1

2

3

4

3

4

- Pin Functions(PD6340A) Pin No. 1-5 6-9 10 11-14 15,16 17 18 19 20 21 22 23 24 25,26 27 28 29-32 33-55 56 57-64

A

B

Pin Name SEG4-0 COM3-0 VLCD KST3-0 KDT0,1 REW DPDT NC KYDT MODA X0 X1 VSS KDT2,3 NC KST4 NC SEG35-13 VDD SEG12-5

I/O O O O I I I O

I O O O

Function and Operation LCD segment output LCD common output LCD drive power supply Key strobe output Key data input (analogue input) Remote control reception input Display data input Not used Key data output GND Crystal oscillator connection pin Crystal oscillator connection pin GND Key data input Not used Key strobe output Not used LCD segment output Power supply LCD segment output

* PD6340A 16

1

C

64

17

49

32 33

48

D

E

F

58

DEH-2790MP/XN/ID 1

2

5

6

7

8

- Pin Functions(UPD63763GJ) Pin No. 1 2 3 4-8 9-16 17 18 19 20 21 22 23, 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39-41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73-88 89-99

Pin Name D.VDD D1.GND reset AB12-8 AD7-0 cs ASTB read write wait INTQ IFMODE0, 1 D1.VDD DA.VDD ROUT DA.GND REGC DA.GND LOUT DA.VDD X.VDD XTAL xtal X.GND VDDREG15 PWMSW0 TEST3-1 PWMSW1 TESTEN D1.GND DIN DOUT SCKIN SCKO LRCKIN LRCK xtalen D1.VDD RFCK/HOLD WFCK/MIRR PLCK/RFOK LOCK/RFOK C1D1/C8M C1D2/C16M C2D1/RMUTE C2D2/LMUTE C2D3/SHOCK D1.GND C33M (rcs) RA11 (CKE) ras cas)(LDQM) cas!(UDQM) we oe(cas) D.GND RDB0-15 RA0-10

I/O

I I I/O I I I I O O I

O

O

I O

I I I I I O I O I O I O O O O O O O O O O O O O O O O O O I/O O

Function and Operation Power supply for digital circuits GND for 1.6V digital circuits Input of reset Address bus 12-8 from the microcomputer Address/data bus 7-0 to the microcomputer Chip selection Address strobe Control signals(read) Control signals(write) Control signals(wait) Interruption signals to the external microcomputer Switching the microcomputer I/F 0, 1 Power supply for 1.6V digital circuits Power supply for DAC Output of audio for the right channel GND for DAC Connected to the capacitor for band gap GND for DAC Output of audio for the left channel Power supply for DAC Power supply for the crystal oscillator Connected to the crystal oscillator(16.9344MHz) Connected to the crystal oscillator(16.9344MHz) Ground for the crystal oscillator Control of 1.6V regulator Setup 0 for PWM output(SD, MD) Connected to GND Setup 1 for PWM output(FD, TD) Connected to GND GND for 1.6V digital circuits Input of audio data Output of audio data Clock input for audio data Clock output for audio data Input of LRCK for audio data Output LRCK for audio data Permission to oscillate 16.9344MHz Power supply for 1.6V digital circuits Output of RFCK/HOLD signal Output of WFCK/MIRR signal Output of PLCK/Output of RFOK Output of LRCK/Output of RFOK Information on error correction/C8M : 8MHz Information on error correction/C16M : 16MHz Information on error correction/Mute for Rch Information on error correction/Mute for Lch Information on error correction/Detection of vibration GND for 1.6V digital circuits Output of 33.8688MHz(CLK for SDRAM) DRAM cs Output of DRAM address 11 Output of DRAM CKE Output of DRAM ras Output of DRAM lower cas(LDQM) Output of DRAM upper cas(UDQM) Output of DRAM we Output of DRAM oe(cas) Ground for digital circuits Input/output of DRAM data0-15 Output of DRAM address0-10

A

B

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

59

1

2

Pin No. 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120, 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144

A

B

C

D

Pin Name D.VDD FD+ FDTD+ TDSD+ SDMD+ MDREFOUTSV AD.VDD EFM ASY ATEST RFI AD.GND AGCO C3T AGCI RFO EQ2, 1 RF2RFA.GND A C B D F E VREFIN A.VDD REFOUT REFC FEFEO ADIN TETEO TE2 TEC LD PD D.GND

I/O

3

4

Function and Operation Power supply for digital circuits Output of focus drive PWM + Output of focus drive PWM Output of tracking drive PWM + Output of tracking drive PWM Output of thread drive PWM + Output of thread drive PWM Output of spindle drive PWM + Output of spindle drive PWM REFOUT for servo Power supply for ADC Output of EFM signals Input of asymmetry Analog tests Input of RF Ground for the analog system Output of RF Connection to the capacitor for detecting 3T Input of AGC Output of RF(AGC) Equalizer 2, 1 Reversal input of RF2 Reversal input of RF Ground for the analog system Input of A Input of C Input of B Input of D Input of F Input of E Input of reference voltage Power supply for the analog system Output of reference voltage Connected to the capacitor for output of REFOUT Reversal input of FE Output of FE Input of FE, TE A/D converter Reversal input of TE Output of TE TE2 TEC Output of LD Input of PD Ground for digital circuits

O O O O O O O O O O I O I O O I O I I I I I I I I I I O I I O I I O O I O I

E

72

144

37 1

36

109

F

60

73

108

* UPD63763GJ

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

- Pin Functions(PE5454A) Pin No. 1 2 3 4 5 6, 7 8 9 10 11 12 13 14 15

Pin Name AVREF AVSS RFOK NC EVDD NC IC/FLMD0 VDD REGC VSS X1 X2 reset XT1

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35, 36 37 38 39-42 43 44 45 46 47 48 49 50 51 52 53 54 55 56-58 59 60 61 62 63 64 65 66

XT2 NC NC xint NC brst BSI BSO bsck FTXD FRXD BRXEN bsrq NC DSCSNS 8EJ(S905) 12EJ(S904) EVSS EVDD SRAMLEVEL0, 1 EMPH emph NC adena LRCKOK SRAMLEVEL2 CD3VON CONT xrst VDCONT ROMDATA ROMCS ROMCK LOEJ CLCONT CDMUTE NC xcs NC xwait CLKOUT LOCK NC xwrite NC

I/O

Format

O

C

I I I

C I I O I/O O I I/O I/O

C /C C /C /C

I I I

O O O

C C C

O O O O O O O I/O O O O O O

C C C C C C C /C C C C C C

O

C

I O I

C

O

Function and Operation A power supply Positive power supply(5V) A power supply GND Output of state of RFOK Not used E power supply Positive power supply Not used IC : VSS direct connection/FLMOD0 : Pull-down Positive power supply(5V) Connected to the capacity stabilizing output of the regulator GND Oscillator connection for mainclock Oscillator connection for mainclock System reset input Connected to the oscillator for subclock (connected to VSS via the resistor) Connected to the oscillator for subclock(Open) Connected to EVDD or EVSS via the resistor Not used CD LSI interruption signal input Connected to VSS via the resistor P-Bus reset input P-Bus serial data input P-Bus serial data output P-Bus serial clock input/output For flash rewriting(transmitted signal) For flash rewriting(received signal) It is possible to receive P-Bus P-Bus service request demand Not used Disc state sense input Input of detection of 8 cm disc ejection Input of detection of 12 cm disc ejection E power supply GND E power supply Positive power supply SRAM level meter output Emphasis information output Emphasis information output Not used A/D reference voltage supply control output (DOUT mute output) SRAM level meter output CD +3.3V power supply control output Servo driver power supply control output CD LSI reset control output VD power supply control output E2PROM data input/output E2PROM chip selection output E2PROM clock output The direction change output of LOAD/EJECT Driver input change output CD mute control output Not used CD LSI chip selection output Not used CD LSI write control signal output Internal system clock output(Open) Spindle lock input Not used CD LSI write control signal output Not used

DEH-2790MP/XN/ID 5

6

7

8

A

B

C

D

E

F

61

1

Pin No. 67 68 69 70 71-83 84-86 87 88 89-93 94 95 96 97 98 99 100

A

B

2

Pin Name xread XASTB BVSS BVDD AD0-12 NC FMODE FLRQ NC csens TYPE_A/D testin HOME TEMP VDSENS NC

3

I/O O O

Format

I/O

/C

I O

C

I I I I

4

Function and Operation CD LSI read control signal output CD LSI address strobe output B power supply GND B power supply Positive power supply Address/data Bus 0-12 Not used For flash rewriting Connected to VSS via the resistor For flash rewriting Not used Flap closing sense input CD-DA analog/digital output change setup Chip check test program starting input Home SW sense input Temperature information sense input VD power supply short sense input Not used

* PE5454A 75

51

Format C

76

50

100

26

Meaning CMOS

1

25

C

D

NJM2885DL1-33

Thermal Protection

-+

E Bandgap Reference

1

2

3

IN

GND

OUT

F

62

DEH-2790MP/XN/ID 1

2

3

4

5

6

7

8

- FM/AM Tuner Unit

1

NC

NC

NC

18 19 20 21 NC

14 DO

NC

DI

CK

SL

5V

OSC

11

A

IC 3 EEPROM 5.0V

AM ANT

10 9 8 CE1

5

ROM_VDD

CE2

NC

13

IC 5 3.3V ←

7 6

LPF

FMRF

ATT Rch

IC 1 3.3V

FM ANT ATT FMRF

B

RF adj

AUDIOGND

NC

12

15

22

16

I/O Explain I AM antenna input

2 3 4 5 6 7 8 9 10 11 12 13

RFGND FMANT VCC SL CE2 NC CE1 CK DI NC OSCGND ROM_VDD

14 15 16 17 18 19 20 21 22 23 24

DO O DGND NC VDD_3.3 NC NC NC NC AUDIOGND L ch O R ch O

CF52

VCC

DGND

2

OSCGND

RFGND

T51

No. Symbol 1 AMANT

23

DET, FM MPX

4

VDD_3.3

ANT adj

Lch

MIXER, IF AMP

3.3V

IC 4 3.3V 2.5V 2.5V ←

3

24

IC 2 2.5V

17

AM antenna input high impedance AMANT pin is connected with an all antenna by way of 4.7µH. (LAU type inductor) A series circuit including an inductor and a resistor is connected with RF ground for the countermeasure against the hum of power transmission line. Ground of antenna block Input of FM antenna 75Ω Surge absorber(DSP-201M-S00B) is necessary. The power supply for analog block. D.C 8.4V ± 0.3V Output of FM/AM signals level Chip enable for EEPROM ”Low” active Not used Chip enable for AF•RF ”High” active Clock Data input Not used Ground of oscillator block Power supply for EEPROM pin 13 is connected with a power supply of micro computer. Data output Ground of digital block Not used The power supply for digital block. 3.3V ± 0.2V Not used Not used Not used Not used Ground of audio block FM stereo “L-ch” signal output or AM audio output FM stereo “R-ch” signal output or AM audio output

RF ground FM antenna input power supply O signal level I chip enable-2 non connection I chip enable-1 I clock I data in non connection osc ground power supply I

data out digital ground non connection power supply non connection non connection non connection non connection audio ground L channel output R channel output

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

63

1

2

3

4

3

4

7.2.2 DISPLAY - LCD(CAW1848) A

B

C

D

E

F

64

DEH-2790MP/XN/ID 1

2

5

6

7

8

7.3 OPERATIONAL FLOW CHART A

Power ON

AVREF1, VDD, AVDD=5V Pin 7, 68, 74, 75

B

bsens Pin 64 bsens=L asens Pin 63

C

asens=L

Starts communication with Grille microcomputer. 300ms swvdd←L Pin 21

300ms D

In case of the above signal, the communication with Grille microcomputer may fail. If the time interval is not 300msec, the oscillator may be defective.

Source keys operative

Source ON

E

SYSPW←H Pin 43

Completes power-on operation.(After that, proceed to each source operation.)

F

DEH-2790MP/XN/ID 5

6

7

8

65

1

2

3

4

3

4

7.4 CLEANING A

Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools: Portions to be cleaned CD pickup lenses

Cleaning tools Cleaning liquid : GEM1004 Cleaning paper : GED-008

B

C

D

E

F

66

DEH-2790MP/XN/ID 1

2

5

6

7

8

8. OPERATIONS A

B

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

67

1

2

1

2

3

4

3

4

A

B

C

D

E

F

68

DEH-2790MP/XN/ID

5

6

7

8

A

B

C

D

E

F

DEH-2790MP/XN/ID 5

6

7

8

69

1

2

3

4

3

4

About the fixing screws for the front panel If you do not operate the Detaching and Replacing the Front Panel Function, use the supplied fixing screws and fix the front panel to this unit.

A

Fixing screw (CXX1066)

Fixing screw (CXX1066)

B

C

D

E

F

70

DEH-2790MP/XN/ID 1

2

5

6

7

Rear speaker

≠

+

≠

+

≠

+

With a 2 speaker system, do not connect anything to the speaker leads that are not connected to speakers.

Left

Front speaker

Rear speaker

Green/black

Green

White/black

White

Blue/white To system control terminal of the power amp or Auto-antenna relay control terminal (max. 300 mA 12 V DC).

Fuse

Violet/black

Violet

Gray/black

Gray

System remote control

≠

+

≠

+

≠

+

Rear speaker

Right

Front speaker

Perform these connections when using the optional amplifier.

Rear speaker

Power amp (sold separately)

6

Black (ground) To vehicle (metal) body.

Red To electric terminal controlled by ignition switch (12 V DC) ON/OFF.

Yellow To terminal always supplied with power regardless of ignition switch position.

Antenna jack

Rear output

This Product

Connecting cords with RCA pin plugs (sold separately)

5 7 8

A

B

C

D

E

F

DEH-2790MP/XN/ID

8

71

1

2

3

4

- Jigs List Name Test Disc L.P.F.

A

Jig No. TCD-782

Remarks Checking g the g grating g Checking g the g grating g ((Two pieces))

B

C

D

E

F

72

DEH-2790MP/XN/ID 1

2

3

4