Sharp CD-C492 Service Manual page 30

CD-C492/492C
A 10
GND(D)
9
GND(D)
8
+4.6V(D)
7
+12V(M)
6
CNSD1
COM1
5
TO DISPLAY RESET
4
PWB
DATA1
P38 1-C 3
STB
2
1
B
GND(CD)
1 1
+7.3V(CD)
2 2
+12V(M)
3 3
C
RWC
1 1
WRQ
2 2
COIN
3 3
SQOUT
4 4
CQCK
5 5
RES
6 6
DRF
7 7
D2GND
8 8
SLD+
9 9
SLD–
10 10
PUIN
11 11
OP/CL
12 12
D
DISC2NO
13 13
UP/DOWN
14 14
CNP12
TO CD SERVO
PWB
P27 7-G
GND(D)
1 1
CL
E 2 2
DO
3 3
CE(CE1)
4 4
DI
5 5
+12V(A)
+B
6 6
GND(A)
7 7
TUN MUTE
8 8
L-CH
9 9
R-CH
10 10
CNP303
FM SIGNAL
TO TUNER PWB
PLAYBACK SIGNAL
F
P37 8-H
RECORD SIGNAL
G
MAIN PWB-A(2/5)
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 19.
1
GND(CD2)
GND(CD1)
GND(D)
+B +7.3V(CD)
+B
+12V(M)
+B
+B +4.6V(D)
+B
RF83 10K
RF84 1K
RF85 1K
RF86 1K
+B
RF87 1K
+B
RF88
+B
RF91
RF92
RF93
RF94
RF95
RF96
RF97
RF98
AC32SO IC
CFWU02 2
SO
+B
CH29
0.022
2 3
Figure 30 SCHEMATIC DIAGRAM (5/20)
RG11
RG05
10K
10K
RF80
1K
RF81
80 79 78 77 76 75 74 73 72 71 70 69
1K
MIC2DET
81
RF82 1K
H/P SW
82
AUTO2SCAN
83
CD2DNO2SW
PL1
84
CD2U/D2SW
PL2
85
CD2O/C2SW
81 PL5
86
PL3
DGTL1
82
PL4
87
P30
DGTL2
PL0
83
P31
88
1K
VSS
89 VSS3
IX0233AW
VDD
90
VDD3
1K
AC32RES SYSTEM CONTROL
91 P32
1K
AC32SS
92 P33 MICROCOMPUTER
1K
AC32SIN
P34
93
1K
AC32SO
94 P35
1K
AC32SCK
95 P00
P03
1K 98
V1/V2
96 P01
99 P04(PCCL)
1K
DEM0
P02
97
100 P05
1K
DEM1
98
RES
99
RWC
100
94
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 3
QG92
KTC3199 GR
RG96
10K
GND(A)
+B +12V(A)
–15V
RH11
150K
RH12
1K
–
2 – 6
8
(1/2)
1
+ 4
3 5
ICH11
NJM4558M
MOTOR DRIVER
DH11
RH17 CH13 RH14
560K 1SS133
1.5K 330P
RH15
CH30
CH15
33K
0.0056
0.22/50
RH21 DH12
RH20
560K 1SS133
1.5K
CH17
RH22
CH18
CH16 0.047
33K
1/50 0.22/50
(ML)
CH20 RH26 DH13
RH25
560K 1SS133
0.015
1.5K
RH27
CH19 CH21
33K
0.47/50 0.22/50
RH31
RH30 CH23 DH14
1.5K 0.0047 560K 1SS133
CH22
RH32
CH24
0.1
33K
0.22/50
(ML)
RH36 DH15
RH35 CH26
0.012 560K 1SS133
1.5K
CH25
RH37
CH27
0.027
33K
2.2/50
(ML)
4
– 30 –
+B
+B
+4V(µ-CON)
GND(µ-CON)
68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
FRNT2RLY
50
FAN CONT
49
VOLT2SW
48
47
PC1
PB2MUT
PC0 46
TA2T1/T2
PC4
50
45
PB7
REC2MUT
49 PC3
PB6 44
TA2PB-EQ
ICF01 48 PC2
PB5
43
TA2R/P
42
PB4
BEAT2CUT
41
PB3
TA2BIAS
PB2 40
FR SPEED(M)
PB1
39
HIGH2SP
38
PB0
TA MOTOR
37
PA7
TAPE2SOL
36
PA6
33
PA3
CAM2SW
3 5
PA5
32 PA2
T22CRO S
34
PA4
PA1
31
T12CRO S
33
T22B-FP S
32
T22A-FP S
31
2 24 25 6 2 27 28 9 2 30
RF30
1K
RG16
47K
RG38
CG06
100K
15P(CH)
RG25
4.7K
TUN L
TUN R
RH13
150K
(2/2) 7
+
DH16
1SS133
16KHz
SPE-1
TAPE L
RH16
1M
DH17
1SS133
63Hz
SPE-2
TAPE R
RH24
470K
DH18
1SS133
250Hz
SPE-3
RH29
1M
DH19
1SS133
1KHz
SPE-4
RH34
1M
DH20
1SS133
4KHz
SPE-5
RH39
1M
GND(A)
5
+4
RF50 1K
RF49 1K
RF48 1K
AMP RF47 1K
RF46 1K
RG55 1K
RF44 1K
RF43 1K
RF42 1K
RF41 1K
RF40 1K
RF39 1K
RF38 1K
RF37 1K
RF36 1K
RF35 1K RG1
RF34 1K RG2
RF33 1K RG2
RG2
RF32 1K
RF31 1K
RG1
RG19
47K
RG26
10K
+B
–B
AUX 2
AUX 1
AUX 1
28 29 30
VIDEO1 IN V
TO PRE SE
P28 2
6