Service manual
CD-C422/C422C/C2800/C2800C
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A
B
C
D
E
F
G
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• NOTES ON SCHEMATIC DIAGRAM can be found on page 13.
CNS702
CNS704
CNP705
IC701
IX0191AW
SYSTEM MICROCOMPUTER
R805
1.2K
R777 10K
R790
10K
C709
1/50
R729 1K
R724 1K
R725 1K
R726 1K
FL701
DISPLAY
R791
10K
R789 10K
R788
10K
R730 1K
R734 1K
R778 10K
R776 1K
Q706
KTA1271 Y
Q701
KRC107 M
R727 1K
C701
0.022
R735 1K
C710
1/50
R707
100K
R767 1K
R728 1K
R733 1K
Q703
KTA1273 Y
C717 0.022
R783
10K
D707 1SS133
D706 1SS133
R773 1K
R766 1K
R768 1K
D708
1SS133
R813
10
(1/2W)
R775 1K
R774 10K
R771 2.2K
C716
47/16
R732 1K
R803
10K
R736 1K
R769 1K
R731 1K
R770 2.2K
PHM1
RUN PALS
SENSOR
FWM2
CNPM2
SWM3
F.P.
SWM5
CAM
SOLM1
SOLENOID
8
7
6
5
4321
1
2
9
5
6
7
1
2
3
4
5
6
7
8
9
10
11
12
10
11
12
12
1
2
3
4
5
6
7
8
9
12
1110 12
34
5
6
7
89
13 14
15
16
17
18 19 2120 22 23 24 3130 32 33
25
26
27
28 29
1234
5
6
7
89
1110 12 13 14
15
2120 22 2
3
16
17
18 19
64 63 62 61 60 59 58 57 56 5455 53 52 51 50 4445 43 4
2
49 48 47 46
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
CNPM1
MM1
TAPE MOTOR
CNSM1
+B
+B
32
1
L-CH INPUT
VDD
P.B. MUTE
DISC 3
DISC 2
DISC 1
S12
S13
S14
S15
TAPE F.P.
T1 RUN PLSE
TAPE MECHA STOP
VDD
T0
T1
T2
T3
T4
T5
T6
T7
T1/T2
TAPE REC
TAPE BIAS
T8
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
IC
REMOCON
SYSTEM STOP
TUNER SD
AVSS
RESET
CD DSP SQOUT
CD DSP COIN
CD DSP CQCK
CD DSP RWC
CD DSP WRQ
CD DSP RES
CD T.T OPEN/CLOSE
CD UP/DOWN,DISC NO
T2 RUN PLSE
CD SL+
CD SL–
TAPE SOL
TAPE MOTOR
MIC
POWER
SL+
SL–
TO MAIN PWB(3/4)
P28 2-G
TO MAIN PWB(3/4,4/4)
P28 1-D,P30 5-A
VF2
VF1
GND
M_GND
+12V
(MECHA)
TAPE MECHANISM PWB-C
31
24
FWM1
SWM4
F.A.S
2+
MECHA STOP
SOLENOID
T1 RUNPALS
FOOL PROOF
T2 RUNPALS
+B
GND
MOTOR
MECHA STOP
SOLENOIDO
T1 RUN
FOOL PROOF
T2 RUN
+B
GND
MOTOR
–VP
POWER
P20
P13
P16
P15
6G
VLOAD
5G
P17
P18
P19
P12
P1
P6
P7
P8
P9
P10
P11
P14
9G
4G
3G
2G
1G
8G
7G
P3
P2
8G
P1
P12
P19
P18
P17
1G
2G
3G
4G
9G
F
F
NC
NC
F
F
P15
P16
P13
P20
P14
P11
P10
P9
P8
P7
P6
5G
P5
P4
6G
7G
NC
NC
M
Figure 22 SCHEMATIC DIAGRAM (1/10)