Philips L05hdtm Training Manual

PHILIPS TECHNICAL TRAINING L05HD TRAINING MANUAL

PHILIPS CONSUMER ELECTRONICS 64 PERIMETER CENTER EAST PO BOX 467300 ATLANTA, GA 31146-7300 MM032205

TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 AUXILIARY POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 MAIN POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 DEFLECTION SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 TV SIGNAL PROCESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 DEFLECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 VIDEO SIGNAL FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 CRT DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 AUDIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 SIDE JACK PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 TROUBLESHOOTING TO PANEL LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Introduction The L05HD TV chassis is designed for the model year 2005. This set is High Definition ready with an NTSC tuning system. To receive the ATSC channels a set top box is required. This design is used in large screen sizes of 27 and 30 inch with the 27-inch having a 4:3 aspect ration and the 30 inch version having a 16:9 aspect ratio. There are three types of CRTs used which are the 100 degrees, 110 degrees, and wide screen version. The standard architecture consists of a Main panel (called the family board), a Picture Tube panel, a Side I/O panel, a HDMI panel, a HD panel, and a Top Control panel. The panels consists primarily of conventional components with some surface mounted devices. The functions for 1fH video and audio processing is performed in one IC (TDA1200xx, IC 7200), the Hercules chip. This chip is located on the solder side of the main panel. The functions for the HD signals and 1fH to 2fH conversion is performed on the HD panel. Except for switching, OSD, Closed Caption, Text, and A/D conversion, the bulk of the processing is performed by the Trident chip, IC 7201. The L05HD chassis has two signal processing sections, one for the 1fH (NTSC), and one for 2fH (HD) processing. Whatever signal is applied to the set, it is displayed on the CRT in a 1080i format. The NTSC tuning system features 181 channels with on-screen display. The main tuning system uses a tuner, a microcomputer, and a memory IC mounted on the main panel. The microcomputer communicates with the memory IC, Remote Receiver, Tuner, Signal processing IC, and HD processing section. The Memory IC retains the settings for favorite stations, customer-preferred settings, and circuit settings. The circuit settings can be accessed by the service technician via the Service Alignment mode. The On-screen graphics and Closed Caption decoding are done within IC 7206 located on the HD panel. They are added to the main signal in the Display Processor, 7221, located on the HD panel. Customer Operation The L05 customer menu is similar to the L04 customer menu. The L05HD does not have Picture-in-Picture. Press the Menu button to make a selection. Press the Cursor up-down buttons on the remote to highlight the desired selection. Press the right Cursor button to make the selection.

Page1

Press the Menu button on the remote and press the Cursor up-down button to obtain the following screens.

Page 2

Setting up the access code. 1. Press the Menu button on the remote to display the on-screen menu. 2. Press the Cursor up or down buttons until the word features are highlighted. 3. Press the Cursor right button to display the features menu options. 4. Press the Cursor up or down buttons until the words autolock are highlighted.

Main Picture Sound Features Install

Features Timer Rotation AutoLock Active Control Digi. Pic. Demo

Timer Rotation AutoLock Active Control Digi. Pic. Demo

Access Code ----

Features Timer Rotation AutoLock Active Control Digi. Pic. Demo

Features T imer Rotation AutoLock Active Control Digi. Pic. Demo

Timer Start Time Stop Time Channel Activate Display

Access Code XXXX

5. Press the Cursor right button. The screen will read, “Access Code ----” 6. Using the number buttons, enter 0, 7, 1, 1. XXXX will appear as you press the buttons.

Features T imer Access Code Rotation XXXX AutoLock Incorrect Active Control Digi. Pic. Demo

Features T imer Rotation AutoLock Active Control Digi. Pic. Demo

New Code ----

Incorrect code will appear on the screen. Enter 0711 again. 7. The screen will ask you to enter a new code. Enter any 4 digit code.

Features T imer Rotation AutoLock Active Control Digi. Pic. Demo

AutoLock Block Channel Setup Code Clear All Block All Movie Rating TV Rating

Confirm Code XXXX

2 4

1 2 4

Of fStop T ime Channel Activate Display

VOL

3 5 6 7 Page 3

Power Supply Block (Figure 1) The Power supplies are both located on the Family board. The supplies are divided into two sections, the Auxiliary and Main section. A single filter and rectifier circuit supplies both sections. The Auxiliary supply operates in a low power mode when the load is reduced. In the standby mode, the 3.3 and 6 volt supplies are operating. The 3.3 volt supply provides power to the processor section of the Hercules. The 6 volt supply provides power to the IR receiver. The Main supply is switched Off via the Standby line. When the set is turned On, the "B" line from the Hercules processor goes High switching 7547 which turns 7535, 7509, and 7545 On. The +3V3A, +6VA, +12VA, and +8VA supplies are then switched On. The load placed on the Aux Power supply will cause it to switch to the full power mode. At the same time, the STBY line switches Low turning the Main SMPS supply On. The supply produces a +6 volt, +140 volt, -16 volt, and +16 volt supplies. The +Vaudio (+16 volt) supply switches on the degauss relay.

Page 4

FIGURE 1 - POWER SUPPLY BLOCK

Auxiliary Power Supply (Figure 2) IC 7510 is the heart of the Auxiliary Power supply. In the Standby mode, VIA the current sensing and Control circuits, a low power condition is detected by the IC. The IC then goes into a Burst Mode operation to reduce the power used by the circuit. In the Burst Mode, the supply will operate at approximately 25 kHz. In full power operation the frequency will be approximately 66 kHz. When power is first applied to the set, Start up is supplied to the IC by the internal Start-Up current through Pin 14. Startup voltage is also applied to the IC to Pin 2 by the AC_IN line which is tied to the neutral side of the AC line. During normal operation, power is supplied to the IC by the HOT windings, Pins 1 and 2, of transformer 5504. Output drive from Pin 11 is applied to the Gate of Transistor 7525. Voltage developed across the current sensing resistors in the Source of 7525 provides current sense information to the IC. When 7525 is switched Off, the voltage on Pin 1 of 5504 goes High. This winding supplies the operating voltage the power supply circuit. It also turns Transistor 7567 On causing the Gate of 7525 to stay Low as long as Pin 1 of 5504 is High. This prevents 7525 from turning On until the field of 5504 has collapsed. Regulation is accomplished by monitoring the +3 volt supply. This voltage is fed to Shunt regulator 7542 which controls the current through opto-isolator 7516. Shunt Regulator 7542 begins conducting when Pin 3 of the IC reaches 2.5 volts. At this point current flows through the opto-isolator, 7516. The transistor inside 7516 turns On applying a control voltage to Pin 6 of 7510. If a problem should develop in the feedback circuit causing an excessive voltage on Pin 6, Transistor 7549-2 will turn On, switching Transistor 7532 On. This will a voltage to the Demag circuit on Pin 7 causing the IC to latch Off. The IC will stay latched until power is removed and reapplied to the set. In the Standby mode, the "B" control line from the Hercules Processor is Low. Only the +3, +3V3, and +6 volt supplies are present. When the set is turned On, the "B" line will go High, turning Transistors 7509, 7545, and 7535 On. This will switch On the +8VA, +12VA, +8V, +3V3A, +6VA, and +5V supplies. In normal operation, voltage from Pin 12 of 5504 is rectified by 6540 to produce a negative voltage which prevents Transistor 7561 from turning On. If AC is removed from the set, this negative voltage will disappear. The voltage across the filter capacitors on the +3V line will turn 7561 On. The Power Down line will then go Low signaling the processor to shut the set down.

Page 5

Page 6 MainSupplyGndA

9530

2556

2555

47u 16V

2534

3546

68K 220R

3561 220R

470u

2K2

3545

3562

3

68K 0V

1

2564

100n

I545

7545 SI2305DS

9515

7575 E 0V PDTC143ZT 2579

0V C

68K 6553

BAS316

B A4

F537 +6VA

68K

4566 3566

Vaux_GND

+6V

7544 L78L33ACZ IN

3

OUT

F586 +5V

2

47u 16V

COM

47u 16V

1

2557

Vaux_GND

2558

3583 B 0V

3548

4548

68K

3540

6554

7509 SI2307DS

68K

REF

K A 2

2K2

7576 BC847BW

6V

27K 3544

I593

I596 B 2V E

F585

3553 3 2V5

7547 C PDTC143ZT

0V

1n0

Vaux_GND

Vaux_GND Vaux_GND

BAS316

470u

2587

100n

2u2

5K6 3585

2K2

3587

22K

3594

10K 2578

C 9V

Vaux_GND

10V

I592

82K

8V

BZX384-C6V8 3590

1V5

2543

3543

10K

30WSRF-HD ----------JMP --JMP ----100MHZ --- 120R BAS316 SI2307DS-E3 -----------

F580 +3V3A

2

I547 68K 2589 5V7

680R

6547

2

NAFTA

27VRF-HD ----------JMP --JMP ----100MHZ --- 120R BAS316 SI2307DS-E3 -----------

+3V +3V3

9524

3537

Vaux_GND1

3591

3

1K0

9V

7542 TL431CZ-AP

47n

1K2

3529

2521

1

20V

10n

3540 3548 3551 3566 4523 4540 4548 4551 4566 4585 5523 6553 7535 9515 9524 9529 9530 9534

STPS10L60D Vaux_GND1 3542

I590

2575

REGION SIZE

7516 TCET1103(G)

Vaux_GND

10K

3596

10u

2583

E

470U

2591

2588

B E

Vaux_GND1

3547

Vaux_GND

I539

3539

I529

270R 7549-1 IMX1

C 0V6

10K

B I597 0V6

3593

3595

100K

C 15V8 7549-2 IMX1

3549

Vaux_GND1Vaux_GND1

5527

I594

1 8V1

4

1.27V On 1.45V Off

F584

470U

4540

SB340L-7010

1n0 6552

BAV21WS

+8V

3 F583

OUT COM

Deflection Controller 1535 1 2 3

2u2

2590

*

IN

2546 I589

3m3

100n

*

5526

2

5K6

47K

*

+12VA

6545

BAV21WS

3597

56K 2520

1

Vaux_GND

Vaux_GND 1

I531

6538

I512

1n0

1

I532 3530

33R

Vaux_GND1

STPS10L60D 2538 F535

I540

0083 HEATSINK

+8VA

7543 L78L33ACZ

2584

2

S

470u 16V

2536 Vaux_GND

3586

0V

12

4m7 6V3

I526 G 3V4

1

To 1405 Of

3560

F582

SB340L-7010 6546

11

0088 HEATSINK

D

2

Vaux_GND E

9534

47u 16V

2n2

33K 2544

1

3533

OVER POWER PROTECTION

2

470p

6537

I530

6544

A4

7535 SI2307DS

F578

10u

Vaux_GND

9 10

2522

1n0

11 3V4

Vaux_GND1 Vaux_GND1

SS28411-00

3532

MAXIMUM ON-TIME PROTECTION

BURST DETECTOR

Driver

* 3526

4

7525 158V 2523

OUTPUT DRIVER

9 0V

1K0

POWER-ON RESET

Sense CURRENT SENSING

8

0086 HEATSINK

2535

47K

6536

BAS316

3568

I533

3538

CIRCUIT

7

5

I537

470p

CONTROL

Vaux_GND1 I564

SB340L-7010

POWER_DOWN

7561 PDTC143ZT

B 0V

BAS316

15K 5524

1m0

3567

BAS316

3588

470K 6534

7

6

BZX384-C12 3565

6543

2

4R7

1532

T 1000mA 3535 10n 3592

2580

2592

68p 10K

Demag

I536

LOGIC

2525

BZX384-C15

6549

START-UP

5521

CURRENT SOURCE

INPUT CONTROL CIRCUIT

Ctrl

C 3V4 7567 BC847B

HVS

I599

3531

330K 47K

3527 I509

B 0V1

470p 6539

5523 4523

5504

2K2

14 158V

VALLEY VOLTAGE CONTRLLED OSCILLATOR

OVER TEMPERATURE PROTECTIOM

6 1V3

Drain

CURRENT SOURCE

Gnd

FREQUENCY CONTROL

C 0V

3K3 3534

4585

3589

22u

2510

6512

BZX384-C18 2526

100n

100n

1u0 2582

2585

3598

4M7 6531

BAS316

2528

470n 3528

I554

B 15V8

I558

I556

6542

*

7532 E BC857B 15V8

6550

F577

I588

*

3550 220K

3

START-UP

SUPPLY MANAGEMENT

BAS316

2539

I568

3536 E

Vcc

*

FIGURE 2 - AUXILIARY POWER SUPPLY

7510 TEA1507

2 15V9

220R

300K

SARS03

15.5 On 11.5 Off

F581

I595

I528

6540

*

3599 1M5

3525

I563

C 3V7

3563

**

B 4V5

F534 I534 3V2 C

Vaux_GND1

I538

* *

6533 RGP10D

Vaux_GND1

MAINSUPPLYGND

Vaux_GND

+5V +6VA

* *

1n0

4R7

7585 BC857B

9509

*

E 0V

2524

*

I553

I510

3551

* *

AC_IN

4551

*

* *

I560

Vaux_GND

Vaux_GND1

Vaux_GND

*

BAV21WS

I557

+3V3A 1 +8V 2 3 4 5 Vaux_GND 6 Vaux_GND1 9554 7 4567 8 9 10 9536 11 12 9523

2576 100n 0V 7577 BC847BW C

Vaux_GND1

Vaux_GND1

Vaux_GND1

B 0V7

10n

E

B 0V7

Vaux_GND

E

6548 BAW56W

Vaux_GND Vaux_GND

C BC847BW 7583 7584 C BC847BW B 10V7 B E 0V

3581

*

21 On 11.8 Off

330p 6532

Source Select + Microcontroller

* *

VCC

1 2 3 4 5 6 7 8

*

2586

I565

1533

+3V3A 1534

VDC

*

To 1533 Of

AUXILIARY POWER SUPPLY

22K 2577 100u

Vaux_GND

E Vaux_GND

Vaux_GND

9529

Stdby_con A4

AUX_ON|ITV_MSG A4

Main power supply (Figure 3) The Main Power supply provides the VBAT (141 volt), and Audio voltage supplies. This supply is switched Off during the Standby mode. During Standby the STBY_Con line is High which turns Transistor 7573 On. This causes the opto-isolator 7513 to turn On hard. This places a higher voltage on the control Pin of IC 7511 causing the IC to shut down. The operating voltage from the Auxiliary supply keeps a small voltage on Pin 2 of 7511 to prevent it from cycling On and Off. Output from Pin 11 of 7511 drives FET 7512 which drives Transformer 5512. When Pin 2 of 5512 goes High, Transistor 7514 is switched On turning 7512 Off. This is to prevent 5512 from becoming saturated. When the set is turned On, the STBY_Con line goes Low switching 7573 Off. The VBAT supply is the reference voltage for regulation. Since this voltage is missing during startup, the Shunt Regulator 7571 is turned Off. The voltage on Pin 6 of 7511 goes Low, which turns the drive from the IC On. When the set is On during normal operation, the supply voltage on Pin 2 of the IC is supplied by Pin 2 of Transformer 5512. When the VBAT supply reaches the correct voltage, Pin 3 of the Shunt Regulator 7571 reaches 2.5 volts switching it On. This switches the opto-isolator On to provide a regulation feedback path. Transistor 6551 provides a power on ramping of the VBAT supply. 7512 drive test points.

Page 7

+Vaudio

AC_IN

I543

9510

47K 6541

RES

2507

2

2505

*

Vaux_GND1

*2542

4

Audio_Gnd

AUDIO_GND2

AUDIO_GND1

F509 I584

* 5512

18

I552

5551

2

I514

I551

17

6551

*

F552

1

5552 Vbatt

1n0

3571

* *

3K3

-16V

I572

* 9577 *F1577 2.5A

F565 +Vaudio +16V

AUDIO_GND2

2 8V2

5V 3

I574 8V2

2K2 2571

I573

I576

7573 PDTC114ET F573

15n

HOT

COLD

Stdby_Con

82K

3575

15K

A4

I578

3

4K7

*

3576

1545 Provision For Lightning Protection

2574

1

7513 TCET1103(G)

10n

1n0 3573

3521

47K 6514

BAS316

5511 470p

2562

3579

7571 TL431CZ-AP MainSupplyGndA

-Vaudio

*

2518

1546 Provision For Lightning Protection

22u 9563

F561

* 2561

3574

2512

100n

1K2

3512

15K

3519

1

3K3

MainSupplyGnd

I562

F564

+6V

I523 5513

I571 9V3

15V6 4

3518

0.6V Off 1.3V On

VCC

HOT GROUND

*

AUDIO_GND2 5561

9572 * 1572 *F 2.5A

AUDIO_GND1

470p 6562

I561

470P

F562

K

I519 100n

I521

2563

AUDIO_GND1

REF

I518

1u0

FOR MAINS 120V AC 170V (177V)

10

F563

*

2565

A

OVER POWER PROTECTION

1K0

47K 2516

11 2V2

6575

Driver

3515

1N5062 3520

0V

CURRENT SENSING

OUTPUT DRIVER

I579

2570

3511 4R7 F510

3522

9

For EMC 5563

COLD GROUND

S 0V

STPS10L60D 6563

2

1n0

Sense

I527

"$"

11

2552 160V 100u

6564

1n0

5562

13

9

I520

..V.. Normal Operation (..V..) Standy Mode

14

8

3516 0R1

CIRCUIT

MAXIMUM ON-TIME PROTECTION

BURST DETECTOR

5

12

100p

Ctrl

15

LOGIC CONTROL

POWER-ON RESET

0V

7 0V

2519

INPUT CONTROL CIRCUIT

Demag

4

I516

1n5

START-UP CURRENT SOURCE

3514

HVS

VOLTAGE CONTRLLED OSCILLATOR

470p

FREQUENCY CONTROL

14 On 2.8 Off

6511

* 7512 D 295V 2V3 G

I515

2515

Gnd

OVER TEMPERATURE PROTECTIOM

RGP10D 2517

I513 14 297V

VALLEY

I508

6

Drain

CURRENT SOURCE

2514

START-UP

SUPPLY MANAGEMENT

3517

3

Vcc

330K 2513

TUNER IF (For Lightning Protection)

2 15V5

22u 50V

2511

3M3

3501

1n5

3506

3M3 2509

1510 TO 1013 OF

2V3

7511 TEA1506T/N1 I511

3524

I517

I505 I522

2551

0V I524

140V

27u

16

2K2

7514 BC847B

3M3

3500

3

10n

3513

2572

1 2

VDC

3

* 9504

3541

3

2503 2n2

F542

"$"

F508

*

2n2

2504 1507 RES

3

2R0 For ITV Only

DMF2405H60 9503 RES I581

F507

4

2

-T 100n 3510

470n

2500

* 3505

V

3

Vaux_GND1

1

3509

* * 5500 1

2R0 I507 9511

F504

2

4

3 9513

-T

1

9500 For ITV only

2 1

9501 RES 5501

F541 7541 BC857B

6500

2508

Front Interface Panel 1505

F506

16V4

I501

3

RES

F503

DMF35 9502

1M5

2

T4E.250V

2 I502

9505 RES

4

*

FIGURE 3 - MAIN POWER SUPPLY

1500

5506

1

16V4

8

2541

+T DSP-301N I580

I542

3523

* 3503

I525

3502

1

4

1 5564 DMF2405H60 4 1

3504

1502 PFC5000

* AC Main Plug Or From 1505 Of

3 F500

5502

5

47u 25V

Rs 4R5 1

1501 PFC5000

3

2502

F501

RES

2501

F502

2

9512

*

1504 2 1

33n

220R Rh 4R5

DEGAUSSING COIL

1503 LKS1AF 4

I583

I582

BZX384-C12

* 95062506

I506 3508 2

NAFTA LR 27VRF-HD 30WSRF-HD 143V 143V 2X10w 2X10w ------------------------JMP JMP JMP JMP JMP JMP

REGION MAIN RANGE SET Vbat AUDIO OUTPUT 1572 1577 2506 5500 9502 9504 9506 9572 9577

2

Page 8

POWER SUPPLY

Deflection Sync (Figure 4) Whatever signal is applied to the L05 chassis, it will display the picture in a 1080i format. This means that the Line or Horizontal frequency is always 33.75 kHz. The Vertical or Frame rate is 60 Hz. Vertical Sync is output from the Trident IC 7201 on Pin 35. The signal is buffered by Transistor 7203 before being fed to the TV display processor and TV Microcontroller. In the same manner Horizontal Sync is output on Pin 34 and is buffered by Transistor 7204.

220R

40 2V5 3206

220R

39 2V5 3207

220R

38 2V5 3208

220R

CLK_9883

T3 T3

PSM ALE WR RD

T2 T2 T2 T2

100n

3V3 4 5 0V 2V4 6 2V4 175 2V4 176 2V4 177

F287 F288 F289 F290

SDA_OUT 3224

T2,T5

3V 178 3V 179

100R T2,T5

+5V

T1,T5 VSYNC 0V

*

*

3222 3V3 180 10K 1V3 31 3221 560R

0V

7203 BC847B

+5V

68p

T3 T3 T3 T3 T3 T3 T3 T3

68p

CAPD16 CAPD17 CAPD18 CAPD19 CAPD20 CAPD21 CAPD22 CAPD23

2V5 2V5 2V5 1V9 2V5 2V5 0V 2V5

2243

100R 2242

14 13 12 11 10 9 8 7

VCC3

SCL_OUT 3223

36 2V4 35 0V 34 0V

ADDRSEL RESET PS ALE WR RD

VM

T5

7202 BC857B 2V2 0 1 2 3 4 5 6 7

AD

SD SC

172 2V5 171 2V5 170 2V5 169 2V5 168 2V5 167 2V5 166 2V5 165 2V5

INT

SVM_PP

T5

IRSET DAC

VM

& DDP

HFLB VSYNC

R G B

HSYNC

VPROT

26 27 28 29

3229 180R

1V5 75R

220R

41 2V5 3205

T3

Sets w/o PP

3230

42 2V5 3204

HS_9883

4202 11 12

+8V

CPU

3228

220R

1K0 2239

VCC3 VS_9883

9 10

7201-2 6930 DPTVSVP

220R

43 2V5 3203

10K

3225

3 3V3 3202

*

F208

RESET

T2

2241 1u0 2240 F207

27p 3227

*

150R

SVM_ROT

4209

T5

DPTV_R DPTV_G DPTV_B

T1,T5 T1,T5 T1,T5

37

4203 3283 1K0 0V

C3

6V

16V 22u

3V 23

FIGURE 4 - SYNC

173

Page 9

100n

100n 2226

2225 100n

100n 2224

2221

7201-4 6930 DPTVSVP

2263

2V2

2223 100n

+3V3

100n 2222

3284 1K0

AGND5

V

4n7

V

2247

4204

2217 100n

4n7

*

100n 2218

0V

2219 100n

T1,T5 HSYNC 2246

100n 2220

7204 BC847B

TV Signal Processor (Figure 5) Red, Green, and Blue from the Trident IC is input on Pins 30, 31, and 32 of 7221, TV Display Processor. The RGB/YUV matrix changes the signal to a YUV signal before feeding it to a Color level control circuit. The signal is fed to the RGB insertion circuits where the OSD is inserted. The signal is then fed to a White Point and Brightness Control circuit and then to the CRT panel. The White Point and Output Amplifier have the Drive controls and Cutoff controls. Input from the ABL line on Pin 43 makes adjustments in the brightness levels to adjust for changes in beam current. The Cutoff pulses from the CRTs are fed to Pin 44 to the Cathode Calibration circuit. The Cathode Calibration circuit adjusts the cutoff levels of the CRT to maintain the correct gray scale tracking. When the set is first turned On, a calibration pulse is output on the RGB lines. The Cathode Calibration circuit monitors this pulse on the Cutoff line to set the Black level and the maximum drive voltage for the cathode. Once the Calibration has taken place, the Output Amplifier switches to the RGB drive signal as the output. Horizontal and Vertical Sync is fed to 7600 on Pins 23 and 24. IC 7600 processes the sync to provide the geometry for the picture. Horizontal drive is output to the sweep circuit on Pin 8. Vertical drive is output on Pins 1 and 2. East West drive is output on Pin 3. Sandcastle (SCO) is output on Pin 9. Horizontal Feedback (HFB) from the sweep circuit is fed into the Phase Loop to phase correct the Horizontal drive. IC 7221 is controlled by the Hercules Processor on the Family Board via the I2C buss on Pins 10 and 11. Transistors 7226 and 7227 levels shifts the I2C buss level between 5 and 3.3 volts. Geometry and Drive settings are stored in the Memory IC located on the Family Board. Deflection (Figure 6) Horizontal drive from 7221 is fed to Transistor 7404 located on the Family board. This drive circuit has two power sources. During startup, it is powered by the +6 volt supply. Once the High Voltage circuit is running, it is powered by Pin 9 of the IFT. 7404 drives Transformer 5402 which drives the HOT (Horizontal Output Transistor). The HOT drives the IFT and the Horizontal Deflection Coil. The IFT is powered by the VBAT (141 volt) supply. The IFT produces High voltage, Focus voltage and G2 voltage to drive the CRT. In addition, a 200 volt supply is produced to drive the CRT panel, a +14 and -14 volt supply for the Vertical output, Filament voltage, +200 volt VideoSupply, and a +12V_lot supply. Transistor 7408 monitors the IFT secondary to sense the presence of over voltage. If the High Voltage goes High, the voltage on Pin 6 of the IFT will go High. When the voltage on diode 6480 exceeds 15 volts, transistor 7408 will turn On. If 7408 turns On, it will turn 7407 On causing the x_ray protect line to go Low. The Processor will then shut the set down. In addition the EW_DRIVE circuit is monitored. If the EW_DRIVE fails, transistor 7406 will turn On constantly placing a dc voltage on the source. This will turn 7407 On. IC 7451 is the Vertical Output IC. It is powered by the +14 and -14 volt supply from the IFT. The Vertical pulse is rectified by 6458, keeping the V_PROTN line High. If the vertical output should fail, the V_PROTN line will go Low. The Hercules processor will then shut the set down.

Page 10

FIGURE 5 - TV SIGNAL PROCESSOR

Page 11

F402

+12V_LOT 33K

3492

33K

3491

47u

2459 470p 6456

I475

8n2

BZX384-C8V2

3477

1K5 6492 15n

18K 2477

2478

3462

BZX384-C15

BZX384-C33

6457 +14V

6M8

7407 PDTC144ET C 3V3

6488 I440

I460

I431

I482

* *

B 0V

GND_DEF

100n

GND_EW 3480

+14V 9435

F456

1R0

BYV27-200-TAP

F457

2R2

47u CRT_GND

3455

I493

F478

3435

X_RAY A4

10R

V_PROTN

3496 E 0V

10K

F482

CRT_GND

GND_EW

BYV27-200-TAP

10K 6491

RGP10D 2410

68K

3442

22K 6442

9442

CRT_GND

5458

1K0

4R7

I416 3493

Vbatt

RES

B 6V 7410 C 0V BC857B

I414

+12V_LOT CRT_GND 2461

BZX384-C3V3

4R7

3443

BAS316

3451

1R0

3497

4R7

4R7

I465

2424

GND_DEF

3450 I492

1u0 250V

470p

6461

1u0

3433

F453

2499

I412

3419

A2

10u

2u2

4R7 6485

5V7 E

I411

3415

Filament

1R5

F452

5452

100n 2436

2448

4R7 6489

470p

I461 I459 RGP10D

9

470p 6403

CRT_GND

3485

I468

CRT_GND I470

6490

I410

GND_HOR

6467

BYV29X-500

BAS316 2466

3414

5459

6464

BZX384-C27

S 50V 3441

3408

330R

100R

A5

220p

HD

3402

100K 2497

F475

GND_HOR

560n

BAS316 D

3481

2

1

F419 7V 7404 BSH103 I413 G 3V6

CRT_GND

2u2

-14V

470u

GND_DEF 8 3

2u2 2491

VideoSupply 2494

GND_HOR 6487

470p

CRT_GND

6452

11

5408

* *

2493 470p

CRT_GND 2426

45V7

BZV85-C6V8

1R0

470u

A

0V

3458

I466

6453 RGP10G

6

I432

3456

I456

2425

BAS316 2458

2419 I428

I473

5457 I457

5

I427

C 0V

2454

2

*

2449

3416 47R

*

* *

CRT_GND I455

2460

1u

2488

0V

*

GND-LINEDRIVE

3

6 PSD10-204B

6486

3

330p

BYD33D 2411

I419

7

1

12

4

7405 BU2527DX 126V

2412

5

2418

2417

3

4 1

F418

5402 1

2416

I418

3490 150R

2413

2423

I488

K

33n

6404 DMV1500M

2409

BAS316

J

6481

22R

10

*

*

15n

*

GND-LINEDRIVE

GND_EW

MainSupplyGnd

FLYB

4434

50V7

13V9

VSUPO

220n

F459

2470

VSUP F461

1 2 3

VERTICAL DEFLECTION COIL

-14V REGION SIZE 2411 2412 2413 2413 2417 2418 2419 2421 2422 2433 2451 3418 3424 3425 3434 3435

27VRF-HD 2KV 820P 1K6V 12N 630V 27N ----250V 390N 250V 560N ----2KV 220P 100V 220N 100R ---------

NAFTA 30WSRF-HD 2KV 220P 1K6V 12N 630V 27N ----250V 330N 250V 1U2 2KV 330P 2KV 330P --100V 100N 100R 1MA 612V 1MA 612V -----

REGION SIZE 3442 3459 3478 3489 4401 4418 5408 5450 5456 6476 9411 9435 9440 9442 9476 9489

NAFTA 27VRF-HD 30WSRF-HD ----470K 820K ----------------W7131-003 Y W7132-004 Y JF0101-85039 B JF0101-85038 B SD20417-02 Y --BZV85-C6V8 BZV85-C6V8 --JMP JMP JMP ----JMP JMP ---------

CRT_GND

BZX384-C15

3432 3432

ATSC 10K 10K

BAS316 Tri+ 1K 1K5

*

4401 3434 1K0

*

6434

I464

* *

4495

1K0

3467

100R

6458

9432

100n

2464

I430

3432

2468

I463

1R5

3466

GND

*

CRT_GND

6449 I481

*

CRT_GND

THERMAL PROTECTION

100R

220n

4

3471 2R7 3472

CRT_GND

CRT_GND

OUT 5 0V5

100n

2R7

MainSupplyGnd

2n2

2463 10K

*220n

3n3 3461

3439

GND_EW

9484

F458 1451

POWER AMPLIFIER

3468

2R2

10K

2407

I435

BAS316 2473

BAS316 3438

I499

2465

6484 6483

1n0

0V6 7 IN+

GND_EW

For ATSC only

10R

MainSupplyGnd GND_EW

2432

I462

GND_EW I434

CRT_GND

0V6 1 IN-

100R 9490 3478

3

FLYBACK GENERATOR

I471

GND_EW 22K

6

9489 3489

3463

10n

2496

A5

* * * *

2n2

3488

220K 100n

2495

VDRB

100R

2

A4

A2,A5

Vguard BZX384-C6V8

22K

I415

9440

I436

3418

A5

S 0V

3440

680K 3437

1M0

VDRA

2467

I433 3428

BZX384-C6V8 3436

100K

2472

3427

6482

3426

100n

EHTinfo A2,A5

680K

A5

4418

I417

G 4V6

10n

EW_DRIVE

* *

82K

3431 3499

F476

14V9 D

7406

Vbatt

7451 TDA8177F

3473 I423

-14V7

6471 RGP10D

2462

I490

12V7

GND_HOR

2471

FIGURE 6 - DEFLECTION

3421

GND_DEF

I458

*

1u0 6480

* *

I426

3459

1406

F465

B

7408 BC857B E 42V4

680K 3460

G2

I425

1405

GND_EW

22K

1R0

1403

FOCUS

A5

I494

CRT_GND

2

HFB

F481

470u

COIL CRT Socket

+6V

2435

3486

RGP10D I469

1404 1

5409

2451

56K

3453

GND_DEF GND_DEF GND_DEF

2n2

DEFLECTION

CRT_GND

150p

470p 6466

TO PICTURE TUBE

A2,A5

F472

3K9 2474

2492

EHT

CRT_GND

I489

HORIZONTAL

*

3469

1402 From 5450 Of LOT (30PWXXXX Only)

I424

*

*

F464

2469

CRT Panel Or TO 1351 OF

*

2431

6476 BZV85-C6V8 BZV85-C6V8

V

CRT_GND

*

*

*

I453

TO 1351 OF

F404

5450

9476

F455

9402

A2

3425

Filament

5401

*

L.LIN

*

4

3474

F416

3413

*

GND_HOR

150R

3424

*

7

F462 EHTinfo

F483

2

3412

VT_Supply

1

NC

9 V

F401 3401 47K

2433

A2

5456 CD25405-00 5 GND_HOR

2422

+12V_LOT VideoSupply EHTinfo

2421

A5,B1

150R

1401 7 6 5 4 3 2 1

SVM_ROT

2404

Vbatt

9411

Page 12

LINE + FRAME DEFLECTION

A2

Frame_FB CRT_GND

F_15050_017.eps

Set Control (Figure 7) The L05HD has two microprocessors, The Hercules located on the Family board and the TV Controller located on the Trident board. The Hercules, 7200, provides control for the entire set. During standby, the Hercules and the Remote sensor are powered by the 3.3 volt supply. The customer communicates with the Hercules via the Remote sensor and Power switch located on the Front Control panel. The power supplies are switched On via the STBY-CONT and B lines. The TV Controller is reset by the C control line. The I2C bus communicates with the EEPROM 7601, Tuner 1000, TV Controller 7206, Trident 7201, A/D 7210, TV Display Processor, 7221, and HDMI panel.

HERCULES PROCESSOR

Page 13

Page 14

FIGURE 7 - CONTROL

Video Signal flow overview (Figure 8) There are two sections in the set for processing video. The 1fH section using the Hercules processes NTSC signals. The Tuner is controlled by the microprocessor in the Hercules. IF from the Tuner is fed to the Hercules chip for detection and demodulation. AV1, AV2, Side, and 1fH Component video is also fed to the Hercules, IC 7200. If an NTSC signal is selected by the Remote or Keyboard, the selected CVBS (Composite Video) is output on two lines. One CVBS line goes to the Trident chip, IC 7201, located on the HD panel. CVBS_TXT is fed to IC 7206 on the HD panel which detects Closed Caption text or teletext. This IC also generates the OSD (On Screen Display). If the signal applied to the set is a 2fH signal or better, it is applied to either the YpbPr Component input or the HDMI input. These signals are fed to a selector switch located on the HD panel, IC 7205. The selected component or RGB signal if fed to the A/D converter, IC 7210. This signal is fed to the Trident IC 7201 which enhances the picture and scales it to 1080i. Analog RGB out from the Trident IC is fed to the Display Processor, IC 7221, which performs the picture control functions and inserts the OSD. The output of 7221 is fed to the CRT panel. The option settings for the Source selection can be found in Option settings in the SAM mode.

FIGURE 8 - VIDEO SIGNAL FLOW BLOCK

Page 15

AV1, AV2, CVI (480i), Side, and Tuner selections are made by the Hercules chip. Selected CVBS (Composite Video) from one of these inputs is fed to the Trident panel which selects between the output of the Hercules, CVI (480p, 720p, 1080i), and the HDMI panel. The CVI input is shared by the Hercules and the HD section. The L05HD has the following inputs in addition to the tuner RF: · · · · · audio

AV1 is a Composite video input. CVI (Component Video input) can accept 480i, 480p, 720p, or 1080i. AV2 accepts Composite video (CVBS) or S-Video. Side accepts Composite video (CVBS) or S-Video. HDMI (High Definition Multimedia Interface) accepts 480p, 720p, or 1080i video and in a digital TMDS format.

Detailed Signal flow (Figure 9)

The output of the Tuner is fed to the SAW filter, 1002, and then to 7200, Hercules, on Pins 104 and 105. The SVHS (YC) signals are combined inside 7200. IC 7200 selects between AV1, AV2, Side, and Tuner composite video. The selected composite video is output on Pin 65. Video buffered by Transistor 7211 is fed to IC 7206 located on the Trident panel which extracts Closed Caption text and Teletext information. This IC also generates the OSD (On Screen Display). Video buffered by 7212 is fed to the Trident IC which has an internal 3-D Comb Filter and A/D converter. IC 7201 rescales the picture to 1080i. Component video is inserted into the YPbPr input located on the Family board. The HDMI panel converts the HDMI signal into an analog YPbPr format. Both of these signals are fed to the Switch, 7205 which selects between the two. The selected signal is fed to IC 7210 which performs an A/D conversion. This 24 bit signal is fed to 7201. The Scaler (Trident IC) converts the signal to a 1080i format as well as performing picture enhancement functions. DRAM ICs 7215, 7216, 7217, and 7218 stores picture data for the Scaler as it is being processed. And internal D/A conversion circuit outputs the 1080i signal is an RGB format on Pins 27, 28 and 29. Horizontal and Vertical sync is output on Pins 34 and 35. The RGB signal from the Scaler is fed to the TV Display Processor, 7221. RGB is output from this IC to the CRT panel. Horizontal and Vertical drive is output to the Family board. TV Display Processor (Refer to Figure 5) IC 7221 is used in a large number of Philips chassis for a long period of time. RGB in inserted in Pins 30, 31, and 32. This signals are converted to a YUV format before being fed to the Color level control. RGB from 7206 is inserted on Pins 35, 36, 37, and 38. The signal then goes to a Brightness and Controls control circuit. RGB to the CRT panel is output on Pins 40, 41, and 42. During warm up, a cathode calibration signal is fed to the CRT panel on the RGB lines. This signal is then fed back to

Page 16

FIGURE 9 - DETAILED VIDEO SIGNAL FLOW BLOCK

Page 17

CRT panel (Figure 10) RGB is fed to the CRT panel on connector 1331. The CRT panel for the L05HD has a single chip CRT drive circuit. RGB is fed to 7330 on Pins 1, 2, and 3. Signal is output to the CRT on Pins 7, 8, and 9. BC_INFO or Cutoff on Pin 5 is fed back to the TV Signal Processor on the Trident panel. The IC is powered by a 200 volt supply on Pin 6. DC operating voltages for the CRT panel are located on connector 1351. The Filament voltage is located on Pin 2. The 200VA voltage on Pin 5 powers 7330. The VBAT voltage on Pin 3 and the +12V_LOT voltage on Pin 6 powers the SVM circuit.

SVM (Figure 11) There are two coils on the deflection coil in addition to the Vertical and Horizontal winding. The SCAVEM coil (Scan Velocity Modulation) sharpens the edges between light and dark transitions. The SVM_ROT signal drives both the SCAVEM and the Rotation coil. The SCAVEM circuit is powered by the Vbatt and +12V_LOT supplies. Capacitor 2376 blocks the dc Rotation signal to prevent it from entering the SCAVEM circuit. Capacitor 2381 blocks the higher frequency SCAVEM signal to prevent it from affecting the Rotation drive.

SVM Coil

Page 18

B1

CRT PANEL I357

3356

I352

EHTinfo

1332

AQUADAG WIRE

10R

156V

100R

6332

3334 I333

I338

2 IN2

3k77

3336

Vdd

2V5

OUT2 8

A2

3k75

BC2

Vref

I331

3335

156V

**

BC3

Vref

Vref 2.5V

3331

156V

THERMAL PROTECTION

I332

BC1 5

7V

of Trident Panel

2332 F341

1n5

B

1K0 I335

100R

GND_CRT

1331 F333

1 2 3 4 5

F332 F331 F335

Red

6V

GND 4

From 1202 of

CRT Green

I340

2333

3330

100R

4330

100R

4328

I355

F334

*3337 9337

BC_INFO

5

*

1

7

3n3

2353

680p

1K5

EHTinfo

2352

T0 CRT SOCKET

3354

FIGURE 10 - CRT PANEL

3328

3k75

* *

OUT3 7

A3

F340

1K0

3332

Vdd

3k77

R

1n0

3 IN3 2V5

I336

Blue

1 5 6 7 8 9 10 11 12

1 5 6 7 8 9 10 11 12

G

F339

I334

100R

188k7 I339

F338

1K0

188k7

**

1254

1256

3333

NOT USED

3329

100R

BC1

Vref

I330

V

A1

3k75 4329

OUT1 9

T0 CRT SOCKET

Vdd

10n 3357

3k77

2331

1 IN1 2V5

CRT Sockets

BAV21

6331

188k7

D? TYPE

BAV21

6333

6 200V

7330 I337

BAV21

10n

2334

2330

100n

+200VA

0330 HEATSINK

F356

** 1351

From 1401 of

Line + Frame Deflection

1 2 3 4 5 6 7

F352 Filament F353 I351

3351

F354 +200VA

2350

2351

100R

47n

10u

Page 19

Vbatt F351 +12V_LOT SVM_ROT

4334

NAFTA 27VRF-HD ----------JMP JMP JMP --JMP

1352

REGION SET 3328 3329 3330 3337 3360 4328 4329 4330 9337 9360

100R

3360

9360

I353

VG2

FOCUS

FROM LOT, MAIN CHASSIS

EHT

LINE + FRAME DEFLECTION

+12V_LOT

F360

3394

6K8

B1 SVM_ROT 100n

2376

6K8

3381

6K8

3382

I345

3376

3377 7376 BC847B

330R

6381

8K2

22K

3392

I348

C 7V2

B 2V3

1u0

5331

I361

* B

I343

B 7V2

7V8

2387 3393

4331

I344 E 1V7

220R

3361 6361 10n 680K

+12V_LOT

UDZS-6V8

8K2

E 7V5

7361 BC847B

C 12V8

*

I341

I362

C

I380

7362 BC857B

E 7V5

I364

I381

680R 3387 1N4148

* *

2381

1K8 3375

3362 I363

3373

100n

250V

2361 4

6V7 5

3V8 3

MODE

IN-

IN+

4n7

1

8

SVR

OUT-

OUT+

3390

8V2

6

6V8

7 10V8

2

150K

I366

22u 100V 3363

I365

2363

400V

2365

4n7

2364

22n

+12V_LOT

I347

I342

2362

7331 TDA8941P

150K

3391

33R

3389

33R

3388

47n

2368 1n0 VCC GND

2391

820R 68K 68K 820R

3366 3367 3368 100n 2390

*

10R

3369

I346

*

2385

B 0V5

I371

I368

5361

9361

* *

E 0V I372

7364 2SC3421

C 47V3

E 47V2

7363 2SA1358

E 97V3

I369

2384

3365 I367 B 96V 10R

I360

F361

F362

3371

1R8 1R8

470R 2389 2367

Vbatt

* 10u 100V

3364 3370

10R 100n 2382

10u 16V 2383

FIGURE 11 - SVM AND ROTATION 100n

F381

F382

F363

3 2 1

3 2 1

1381

1361

REGION SET 4331 5331 5361 9361

TO SCAVEM COIL TO ROTATION COIL

Page 20 3372

NAFTA 27VRF-HD --1U0 PM10 100MHZ 50R ---

Audio (Figure 12) All audio processing and control is performed by the Hercules IC 7200 located on the main board. Audio is included in the HDMI bit-stream. Digital audio from 7002 is fed to IC 7011, Audio DAC. Audio from 7011 is fed to IC 7050, switch, which has only one input since the second input is not used in the HD version. The output of 7050 is fed to the Hercules IC located on the Main board. Audio for the CVI input should be inserted into AV1. Audio is output from the Hercules on Pins 68 and 69 to the Audio Amplifier, IC 7990. This is a two channel 20 watt amplifier. Audio output Main audio is output on Pins 68 and 69 and fed to the audio amplifier 7990. The audio amplifier is a dual 10 watt amplifier. It is powered by the +VAUDIO and -VAUDIO supplies. These are +16 and -16 volts. To mute the amplifier, the VOL_MUTE line goes Low switching transistor 7992 Off switching transistor 7991 On. The output of the amplifier is fed to the Side Jack panel. Monitor audio is output on Pins 66 and 67 of 7200. These outputs are muted by the STBY_CONT and POWER DOWN lines. The POWER DOWN line is High during normal operation. As the set powers off, this line goes Low, switching 7993 Off. Transistor 7104 then switches On to mute the output. The STBY_CONT line goes High when the set is

FIGURE 12 - AUDIO BLOCK

Page 21

Page 22

FIGURE 13 - AUDIO OUTPUT

HEADPHONE

1 I166

*

F154

I170

6

3156

I168 5

2178

5 4 3 2 1

470pF

1254

1278

1232 4 3 2 1

TO SPEAKERS

4 2 1279

3157

470pF

I162

2176

3

I163

*

7

I171

3 2 1

TO ECO SUB

8 9

3161

39K

2181

1u

I169

FIGURE 14 - SIDE JACK PANEL turned Off turning 7994 On, muting the output. Capacitor 2999 delays the turn-on of 7993 to prevent a pop in the speaker at set turn On. Side Jack panel (Figure 14) The output of the audio amplifier is fed to the Headphone Jack located on the Side Jack panel. The output to the speakers is switched Off when a headphone plug is inserted. Finding the defective panel (Figures 15 and 16) When troubleshooting the set, the defective panel requiring replacement or additional repair must be located. The Power supplies, Deflection, 1fH inputs, and Audio outputs are located on the Family board. The 2fH, CRT drive, and Deflection drive circuits are located on the Trident board. If the set turns On without a picture or sound, first check the power supplies located on the Family board. If the set comes On, then shuts Off, there may be a problem with the shutdown circuits which are located on the Family board. If the picture is missing, but sound and high voltage are present, the problem may be located on the Trident panel.

Page 23

Page 24

Wiring Diagram DEGAUSSING COIL

E

TOP CONTROL PANEL

CRT 16:9

AQUADAG

EHT CRT

1010 3P

B

(component view)

FRAME ROTATION COIL

CRT PANEL 1340 5P

GREY ORANGE BLUE

RIGHT SPEAKER

BROWN

LEFT SPEAKER

1336 1352

SCAVEM COIL

CRT SOCKET

1335

B

RED BLACK

BLACK RED

1381 3P

1693

1211 2P

7P

D

MAINS CORD

1533 3P

12P

1281 1504

1252

2P

7P

SIDE A/V PANEL + HEADPHONE

J

RIGHT (RED)

1280

3P

LEFT (WHITE)

1254

5P

CVBS (YELLOW)

A

5P 1280

FRONT INTERFACE Warning: Some models have tact switch.

MONO CARRIER

MAINS SWITCH

4P

1278 1682

4P 1206 7P

1220

7P

1533 12P

1693

1206

6P 1221 5P 1202

6P

M

10P

1222

10P

1251 1251

HDMI PANEL

1404 2P

12P

1207

1401

1223

TUNER

4P

1223

6P

7P

5P

1250

12P

1250

4P

1228

4P

3P

HEADPHONE

6P

FIGURE 15 - CONNECTOR INTERCONNECT

1351 5P

1361 3P

CRT PANEL

T

TRIDENT PANEL 1005 3P COMPAIR CONNECTOR

1228

1451 2P LOT

1220 7P

6P 1222

6P 1221

FIGURE 16 - WIRING INTERCONNECT

Page 25

SERVICE POSITION

Page 26

Service Alignment Mode SAM (Figure 17) Making changes in the settings requires entering the SAM. To enter SAM, press 0 6 2 5 9 6 Info on the remote control. Use the cursor-up and cursor-down buttons to highlight a selection. Press the cursor-right, cursor-left buttons, or enter a value to make changes. Refer to the Service manual for additional information on the SAM.

FIGURE 17 - SERVICE ALIGNMENT MODE

Page 27

Abbreviation list Description 1080i 1080p 480i 480p ADC A/D AFC AGC AM AV C-FRONT CBA ComPair CSM CVBS CVBS-EXT CVBS-INT CVBS-MON CVBS-TER-OUT DAC DFU DNR DRAM DSP DTS DVD EEPROM EPLD EXT FBL FLASH FM FMR FRC FRONT-C FRONT-DETECT FRONT-Y_CVBS H HD HDMI HP I2C I2S Page 28

1080 visible lines, interlaced 1080 visible lines, progressive scan 480 visible lines, interlaced 480 visible lines, progressive scan Analogue to Digital Converter Automatic Frequency Control: control signal used to tune to the correct frequency Automatic Gain Control: algorithm that controls the video input of the feature box Amplitude Modulation Audio Video Chrominance front input Circuit Board Assembly (or PWB) Computer aided rePair Customer Service Mode Composite Video Blanking and Synchronization CVBS signal from external source (VCR, VCD, etc.) CVBS signal from Tuner CVBS monitor signal CVBS terrestrial out Digital to Analogue Converter Directions For Use: owner's manual Dynamic Noise Reduction Dynamic RAM Digital Signal Processing Digital Theatre Sound Digital Video Disc Electrically Erasable and Programmable Read Only Memory Electronic Programmable Device EXTernal (source), entering the set by cinches (jacks) Fast Blanking: DC signal accompanying RGB signals FLASH memory Field Memory / Frequency Modulation FM Radio Frame Rate Converter Front input chrominance (SVHS) Front input detection Front input luminance or CVBS (SVHS) H_sync to the module High Definition High Definition Multimedia Interface HeadPhone Integrated IC bus Integrated IC Sound bus

IC IF Interlaced

Integrated Circuit Intermediate Frequency Scan mode where two fields are used to form one frame. Each field contains half the number of the total amount of lines. The fields are written in 'pairs', causing line flicker. IR Infra Red IRQ Interrupt ReQuest Last Status The settings last chosen by the customer and read and stored in RAM or in the NVM. They are called at start-up of the set to configure it according the customers wishes LCD Liquid Crystal Display LED Light Emitting Diode LINE-DRIVE Line drive signal LVDS Low Voltage Differential Signalling, data transmission system for high speed and low EMI communication. MPEG Motion Pictures Experts Group NVM Non Volatile Memory: IC containing TV related data (for example, options) OSD On Screen Display Progressive Scan Scan mode where all scan lines are displayed in one frame at the same time, creating a double vertical resolution. RAM Random Access Memory RC Remote Control transmitter RC5 Remote Control system 5, the signal from the remote control receiver RGB Red, Green, and Blue. The primary colour signals for TV. By mixing levels of R, G, and B, all colors (Y/C) are reproduced. RGBHV Red, Green, Blue, Horizontal sync, and Vertical sync ROM Read Only Memory SAM Service Alignment Mode SIF Sound Intermediate Frequency SC SandCastle: two-level pulse derived from sync signals SCL CLock Signal on I2C bus SDA DAta Signal on I2C bus SDRAM Synchronous DRAM SIF Sound Intermediate Frequency STBY STandBY VGA Video Graphics Array XTAL Quartz crystal YPbPr Component video (Y= Luminance, Pb/Pr= Colour difference signals) Y/C Luminance (Y) and Chrominance (C) signal Y-OUT Luminance-signal

Page 29