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IC BLOCK DIAGRAM & DESCRIPTION
IC903 LA6541 (CD Driver) IC101 LA1824 (Tuner)
IC901 LA9242M (Servo)
123456 789
10 11 12
131415161718192021222324
Vcc Vref VIN4 VG4 Vo8 Vo7 GND Vo6 Vo5 VG3 VIN3 CD RES
Vcc Mute VIN1 VG1 Vo1 Vo2 GND Vo3 Vo4 VG2 VIN2 Reg OUT Reg IN
Vcc
11k Ω 11k Ω
11k Ω11k Ω
Level
Sift
BTL
Driver
BTL
Driver
Level
Sift
RESET
Regulator
Level
Sift
BTL
Driver
Level
Sift
BTL
Driver
1
234
5
678
9
10 11 12
24
23 22 21
20
19 18 17
16
15 14 13
FM
RF
AM
RF
AM
MIX
FM
MIX
FM
OSC
AM
OSCREG Vcc1
Vcc2GND2
GND1
DECODER
PHASE
COMP
PILOT
DET
TRIG ST-SW VCO
DET
DET
AM-IF
S-METER
FM-IF
AGC
FF FF FF
ST
LED
TUN
LED
1 FIN2
2 FIN1
3 E
4 F
5 TB
6 TE-
7 TE
8 TESI
9 SCI
10
TH
11 TA
12 TD-
13 TD
14 JP
15 TO
16 FD
17 FD-
18 FA
19 FA-
20
FE
21 FE-
22 AGND
23 NC
24 SP
25 SPG
26 SP-
27 SPD
28 SLEQ
29 SLD
30 SL-
31 SL+
32 JP-
33 JP+
34 TGL
35 TOFF
36 TES
37 HFL
38 SLOF
39 CV-
40 CV+
41 RFSM
42 RFS-
43 SLC
44 SLI
45 DGND
46 FSC
47 TBC
48 NC
49 DEF
50 CLK
51 CL
52 DAT
53 CE
54 DRF
55 FSS
56 Vcc2
57 REF1
58 VR
59 Lf2
60 Ph1
61 BH1
62 LDD
63 LDS
64
Vcc1
PIN FUNCTION
VCC1
LDS
LDD
BH1
PH1
LF2
VR
REF1
VCC2
FSS
DRF
CE
DAT
CL
CLK
DEF
64
63
62
61
60
59
57
56
58
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
3130
29
28
27
26
25
24
23
2221
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FIN2
FIN1
E
F
TB
TE-
TE
TESI
SCI
TH
TA
TD-
TD
JP
TO
FD
APC
RF DET
I/V
VCA
VCABAL
TE
+
-
T.SERVO & T .LOGIC
F.SERVO & F.LOGIC
SPINDLE SERVO
SLED SERVO
RF Amp
SLC
REF
U-COM
INTER FACE
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
FD-
FA
FA-
FE
FE-
AGND
NC
SP
SPG
SP-
SPD
SLEQ
SLD
SL-
SL+
JP-
NC
TBC
FSC
DGND
SLI
SLC
RFS-
RFSM
CV+
CV-
SLOF
HFL
TES
TOFF
TGL
JP+
PARTS LIST
POWER SUPPLY P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
73 614 331 2499 ASSY,PWB,RECTIFIER(Only initial)
C1114 403 135 5702 ELECT 4700U M 25V
D1110 645 023 6112 RECTIFIER 1N-4001
D1111 645 023 6112 RECTIFIER 1N-4001
D1112 645 023 6112 RECTIFIER 1N-4001
D1113 645 023 6112 RECTIFIER 1N-4001
D1114 645 023 6112 RECTIFIER 1N-4001
D1115 645 023 6112 RECTIFIER 1N-4001
D1116 645 023 6112 RECTIFIER 1N-4001
F1101 645 054 0639 FUSE GLASS TUBE,FS1101
N1111 645 027 0611 WAFER 4P,CN1111
N1112 645 033 3682 HEADER 3PINS,CN1112
645 035 0511 FUSE HOLDER MW1010K,
FOR FS1101
645 027 1298 EYELET
CD P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
74 614 332 1132 ASSY,PWB,CD(Only initial)
CN901 645 069 6688 HEADER FFC 16P
CN902 645 051 6542 6P HEADER
CN903 645 069 6695 HEADER FFC 18P
CN904 645 051 6511 2P HEADER
D0901 645 023 6099 DIODE 1N-4148
D0902 645 023 6099 DIODE 1N-4148
IC901 645 055 8436 IC LA9242M
IC902 645 069 6633 IC LC78601RE
IC903 645 069 6879 IC LA6541D
JW906 645 069 6886 INDUCTOR 2.7UH
JW920 645 069 6886 INDUCTOR 2.7UH
L0901 645 042 0108 CHOKE COIL 26UH
L0902 645 069 6886 INDUCTOR 2.7UH
L0904 645 069 6886 INDUCTOR 2.7UH
Q0901 645 061 8246 TR 2SA608NFNPAAT
Q0902 645 033 3514 TR 2SB764D
Q0903 645 069 6862 TRANSISTOR 2SA1342
Q0904 645 069 6862 TRANSISTOR 2SA1342
X0901 645 061 9915 RESONATOR 16.9344MHZ
645 042 0320 HEAT SINK,FOR CD BD IC903
CASS DECK MECHANISM ASSY
REF.NO. PART NO. DESCRIPTION
14 645 050 1814 CASS DECK MECHANISM
645 050 2101 ASSY,MOTOR
645 068 7976 ASSY,PINCH ROLLER
645 050 1784 MAIN BELT
645 050 1395 RF BELT
645 018 0637 R/P HEAD
645 030 6839 E HEAD
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