L3 CT2
L3 T3
5
MAIN PCB
ADJUSTMENT LOCATIONS
T2
LA1823 FM/AM IF AM 'RF FM 'RF
BLOCK DIAGRAM
TUNER
EQ LC75342
6
KEY BOARD POWER AMP BA5417
CD MECH SANYO DA11B3N
CD LC72131 LA9240 LC78622NE
LCD DISPLAY
POWER SUPPLY
LA1823 FM/AM IF AM 'RF FM 'RF
BLOCK DIAGRAM
TUNER
EQ LC75342
6
KEY BOARD POWER AMP BA5417
CD MECH SANYO DA11B3N
CD LC72131 LA9240 LC78622NE
LCD DISPLAY
POWER SUPPLY
R-OUT
L-OUT
R-IN
L-IN
CN303
CNP902
CN903
CD DECK CNP901
CN902
7 CN901
MAIN PCB
LEAF SWITCH
CN301 CN402 CNP903 CN404
CN403
FM ANTENNA 75
CN401
CNP401 CNP403
KEY PCB
CNP402
DISPLAY PCB
WIRING DIAGRAM
CN302
IC BLOCK DIAGRAMS BA5417
T. S. D 30K
30K
30K
30K
ST.BY
3
5
4
6
7
8
9
10
11
PRE GND2
2
45
FILTER
PRE GND1
1
Vcc
BS
POWER GND
45 BS
14
15
13
12
LA1823 Vtune
FM Ant
MONO
AM
BPF
ST
FM R-OUT
24
23
22
21 VCC2
GND2
20
19
18
17
MUTE
FM OSC
FM RF
AM RF
REG
1
2
SD
ST
OSC BUFFER GND1
V CC 1
3
FF
VCO
4
5
15
14
13
PHASE COMP
PILOT DET
FM DET
FF
FF
TRIG
AM MIX
AM OSC
16
DECODER
ST SW FM MIX
L-OUT
6
IF BUFFER
7
8
9
FM S-METER
AM DET
FM IF
AM IF
10
11
AGC
12
AM Ant
AM/FM Mute IF Buff
8
ST AM OSC Buff
10.7MHz
450KHz
VCC
LA6541D
V cc
1
-
30
V CC
29
VREF
28
VIN 4
+ Mute 2
V IN1 3
11K
11K Level shift
Level shift
1
4
V G1 4
27 VG 4
Vo1 5
Vo3
BTL AMP 1
26 Vo8
BTL AMP 4
6
25 V o 7
GND 7
24 GND V CC
GND
8
23 GND
+
GND 9
22 GND
Level shift V o 3 10
21 V o 6
V o 4 11
BTL AMP
BTL AMP
2
3
20 V o 5
VG 2 12
V 2 13 IN
19 V G3 Level shift
Level shift
2
3
11K
11K
REG OUT 14
REG IN 15
18 VIN3
17 CD
RESET
Regulator
16 RES
9
REFI
58
57 56
DEF
VR
59
CLK
LF2
60
55 54 53 52 51 50
49
CL
PH1
61
DAT
BH1
62
DRF CE
LDD
63
FSS
LDS
64
APC
VCC2
VCC1
LA9241M
REF 48 NC
RF DET FIN2 1
FIN1 2
47 TBC
VCA
I/V
46 FSC
E 3 Microcontroller INTERFACE
VCA
BAL
SLC
F 4
45 DGND 44 SLI 43 SLC
TB 5 TE
_
42 RFS
-
6
TE
TE 7 RF Amp
TESI 8
41 RFSM +
40 CV
T.SERVO & T.LOGIC
SCI 9
39 CV
-
38 SLOF TH 10
37 HFL 36 TES
TA 11
35 TOFF
_ TD
34 TGL
12 SPINDLE SERVO
F.SERVO & F.LOGIC
SLED SERVO
33 JP +
TD 13 JP 14
TO 15
29
30 31 32 SL + SL _ JP
SPD
28
SLD
27
SLEQ
24 25 26 SP
NC
AGND
FE _ FE
20 21 22 23
FA
FA
_ FD
19 _
18
17
SPG _ SP
FD 16
LC78622NE V SS
V DD
TAI
VCO clock os cillator Clock control
TEST5 TEST4 TEST3 TEST2 TEST1 TST11
PCK
FR
ISET
Slice level control
PDO
VV SS
FSEQ
VV DD
EFMO
DEFI EFMIN
RAM address generator
2k k 8-bit RAM
t Synchronizaion dejection EFM demodulation
interpolation and muting
C2F
Billingual CLV+ CLV-
Digital output
C1 and C2 error delection and correction Flag processing
CLV digital servo
Digital attenuator
V/P PW SBCK SBSY SFSY
Subcode separation OCRC
8 x oversamping digital fillors
CS WRQ SQOUT
Microprocessor interlace
1- bit DAC
CQCK L.P.F. COIN RWC
Servo command
General-purpose ports
Crystal oscillator system Timing generation
LV DD
LV SS
MUTER/CONT7
LCHO
RCHO
MUTER/CONT8
RV DD
RV SS
XV DD XOUT XIN
F5X
XV SS 4.2M
46M
EFLG
EMPH/CONT6
CONT5 CONT4
CONT3 CONT2
CONT1
PCCL
TGL
RES JP+
JPTOFF TES HFL
10
DOUT
LC72131, 72131M
REFERENCE DIVIDER
XIN
PD
PHASE DETECTOR CHARGE PUMP
XOUT AIN UNLOCK DETECTOR
SWALLOW COUNTER 1/16, 1/17 4bits
1 2
FMIN
AOUT
12bits PROGRAMMABLE DIVIDER
AMIN
CE
DI
UNIVERSAL COUNTER
DATA SHIFT REGISTER LATCH
CCB I/F
IFIN
CL
DO
V DD
POWER ON RESET
V SS
BO1
BO2
BO3
IO1
BO4
V DD
LC7461M
V SS
IO2
TEST
V DD
Ko 0 Key output timing signal generator
V DD
OUT
Output circuit
Ko 7
F osc/12 OSC1 Oscillator
Decoder
Divider
OSC2
KI 0 Key entry circuit
Key data register
Custom code register
KI 3
CO
11
C5
12
R4
RVref
+
28
LOUT
26
25
24
LIN 9
10
19
20
2.2 F
+
29
+
1 F
18
+
R3
Control circuit
30
1 F
R2
14 15 16 17
+
1 F
LBASS1
R1
7 CCB interface
LVref
+
1
+
Logic circuit
Control circuit
6
1 F
+
+
2
NC
NC
13
+
L1
8
1 F
L2
L3
12
+
1 F
+
1 F
+
LBASS2
+
11
3
+
LSELO
L4
LTRE
+
4
+
2700pF +
+
0.1 F 0.1 F
1 F
5 +
3.7K +
2.2 F
NC
Vref
VDD
CL
D1
CE
VSS
TEST
PA
+
PA
Microcontroller
LC75342,75342M
27
ROUT
RBASS2 0.1 F 0.1 F
1 F
21 RSELO
3.7K
RBASS1
23 RTRE 2700pF
22 RIN 1 F +