Pc Board - Kenwood CD-425M Service Manual

A B
PC BOARD(Component side view)
1
X32 E/5
2
3
X32-3770-1X A/5 (J70-1360-21)
4
AUDIO
(27Vrms)
DIGITAL
OUTPUT
OPTICAL
SYSTEM
5
CONTROL
J3
SL16
TEXT
220V
230V
6
110V
120V
7
Refer to the schematic diagram for the value of resistors and capacitors.
C D
16 30
J4
IC16
15 1
5
4 1
2
1
6
E6
WH3
W153
9
5
60 61
80
41 IC15
40 1
232C-uCOM
20 11.0592MHz
21
X5
L.P.F
J1
RF&DSP
E B
Rch 2
C34 Q4
W206 +5V
R44
R60 E B
Q6
R52 W17 GND
Lch
1 E B
Q8 R50
R46
E B 1 4
Q7
A2
IC3
E B
Q5 L.P.F.
3
5
8 1
E B SERVO.DSP.
Q3 80
R45
CD-TEXT.DAC
1
R49
R51
J2
R43
C35
C17
X1
C18
W8 DOUT
W9
+5V
W10 GND
16.9344MHz
P1
W165 GND
W166
+5V
Q22 Q21
AVR
C41
CN8
S13
1
D6
D5
2
Q11
E B
R66
D4
CN7
C39
Q12
E B
1
Q9
S G D REG-ON
3
D3
E F
X32 C/5
POWER-ON-PLAY-SW
OFF ON
S12 4
2 3
1 E2
WH1
X32 B/5
(5)RST
(4)VPP
D26 E1
W12
4
STANDBY WH1
POW-ON-P
2 3
C71
1
S1 (6)X1
POWER
CP5
X32 D/5
W2 F1
W6 -36V
1
2
D29
R145
R143
D28
S11 DOOR-SW
D32
R138
D27
E8
D31
R125
S5 DISPLAY
D30
S3
WH2 RANDOM S10 DISC SKIP
E3
WH2
E4
1 1 R130
B
3 3
E
uCOM-F
FE-B
W207 +5V W47
VR1
SCOR
7 1 uCOM-F
W25
CN2
MDP
W208
20 21
+5V
C7
W34
VC
C6
LD
W64 VC
1
IC2
40 W36 FE R11 CURRENT-CHECK
41 R18
R19 W37 TE R10 R157
2
W68
+5V
11 20 R7
W71
61 60
W38 RF IC1
RF-AMP E
W31 VC L1
10 1
B
W32 W70
RF W61
R34
A
W35 +5V
GND
W33 GND
W22
+5V
W30 +5V
SI SO DO
DI
C21
C5 32
R33
C51 IC5 4ch-DRIVER
1
W60 GND
W26 GND FI TI TO FO
L2
R82
C54
Q18
E5
B E
W19 WH3
5
C46
D13
4 1
C47 C48 2
Q15
B
W155
R71
E
Q17
E B
1 6
E B
CN6
Q16
9
G H
(1)SI
(2)SO
(3)SCK
C72
19 1
(8)GND (7)+5V
18 2
20 21
CN10
X4
WH4 W40 RST
5MHz
W41 LED
W28
GND
1
IC13 40 W29 +5V W42 U+5V
FL-uCOM
80 W43
41 REM
W44 GND
W167 +7.5V
W45 A/D1
61 60
W46 A/D2
55
56
CP1
CP2
W39 -36V
W210
-36V
CP3
CP4
W51 F1
S4 CONFIRM
R124
S6 DOWN
S2
REPEAT
B
E
uCOM-F
SQSO
19
W86
CN3
SLT-SW 18
1 10
W205 GND
CN9
C67 W162 +7.5V
W98 +5V
W95 +5V
1 9
W99 GND
W100 U+5V
IC11
R116
W101 DISC-SW1
W90 LOADM+ W102 DISC-SW2
CN1 15
R117
W103 S1-SW
W91 GND
16
LOAD-SW
W106
W118
W107
W119
D1 UNLOAD-SW
E W120
W108 U+5V
W117
uCOM-F
W201 VPP
W92 RST
W202 X1
50 51
PD
W93 GND
W94 X2
U+5V
12.5MHz
31
IC6
30
17 MAIN-uCOM
W87 MON
W88 +5V
C50
1 100
16 15 28
W112 WR8WE)
IC8
W164 +5V W113 RD(OE)
LCD-uCOM
W114 CE(CSRAM)
W80 GND
14 1
W81
U+5V R115
E B Q24
W82 SRAM+5V
W115
SRAM+5V
X3
W83 +7.5V
3.64MHz
17
15
C66
W84 GND
IC9
ROTLY
-DRIVER
SRAM(256K)
1 4
1 5
14
IC12 IC10 SRAM(1M)
IC7
16
10 6
8 5
GND
W89 DISC-SW2
W156
+5V
1 8 E7
E B
1 2
Q26 CN4
CN5
I J
A1
C73 1 3
ED1
S9
PLAY/PAUSE
S7 STOP
S8 UP
R126
1
2
W125 SQSO
uCOM-F
SQCK
W126
W157
IC-RST
W158 RXD-232C
W159 TXD-232C
SBUST
SDATA
PROTECT
U+5V
W123 SQCK/SCK-SW
W160 RXD-R
W161 TXD-R
80
uCOM
81
W122 A15
32
28
1
1
10