Sharp CD-CH1500 Service Manual page 23

C958
C957
390P C970
150P
(CH) 0.1
+B
0V 5V
1 VSS VDD
18
0V
0V
2 DATA OE 17
7
0V 0V R1032 1K
3 SW12
CLK 16
0V R1052 1K
0V
4 LCK
SW11 15
1.1V 2.8V R1051 1K
5 CD-SW SW10 14
R1050 1K
0V
R1141
6 13
NC SW9
0V R1023 1K
1K
7 NC SW8 12
8 11
NC SW7 P_CONT
0V
9 CD-R_SEL 10
SW5 LCD_RESET
+B
CD-R_SEL
D951
DS1SS133
C914
0.1
9 8 7 6 5 4 3 2 1
R916
100
0V VSS
1K
REC_MUTE
99
5V REC MUTE
R996 1K
C-MO_FOR
0V
FH M B- 98
R997 1K
C-MO_REV
0V 97
FH M B+
R998 1K T-MO_FOR
96
0V FH M A-
ST_OUT1 0V
R999 1K
T-MO_REV
C BIAS 0V 0V FH M A+ 95
R928 1K
PU-IN
C 0V
5V CD PICK IN 94
R949 1K CD-RW
MUTE 5V
93
5V CD RW
R982 1K CD_RES
CD RESET 92
0V
R976 1K CD_BUS0
91
0V CD BUS0
CD_BUS1
R977 1K
0V CD BUS1 90
R
CD_BUS2
R978 1K
0V CD BUS2 89
R979 1K CD_BUS3
0V CD BUS3 88
V
R980 1K CD_BUCK
5V CD BUCK 87
V
CD_CCE
R981 1K
V 5V CD CCE 86
FH_C-SW_A
R989 1K
2V
5V FH C-SW A 85
FH_C-SW_B
R990 1K
84
0.2V FH C-SW B
R994 1K
83
0.2V FH T-SW C
R993
82
5V FH T-SW B
1K
0.2V FH T-SW A 81
R992
1K
72 73 74 75 76 77 78 79 80
FH T-SW B
FH T-SW C
R1084
R1088
5.6K R1094
5.6K
5.6K
R1092
5.6K
8.6V
5V
1 IC913
3
2
C1004
C1006
C1005
0.1
47/50
0.1
IC913
KIA7805AP
VOLTAGE
+B
REGULATOR
+B
+B
7 8 9 10 11 12 13 14 15
1 2 3 4 5 6 7 8
BI960
CNP806
CNP807
P28 1 - C
P28 1 - D
OWER PWB
TO POWER PWB
7
IC912
BU2092F
INPUT/OUTPUT
EXPANDER
DIG_SEL
AUX_SEL
FAN
PNL_OP
PNL_CL
R1027 R1026
R1048
R1024
10K
10K
10K
10K
+B
R1028
27K
+B
R1131
+B
220
+B
KTC3199 GR
+B
+B
BI940
CNS940
BI950
8
Figure 23 SCHEMATIC DIAGRAM (4/11)
+B
C975
C974
1/50
0.1
100P(CH)
C978
100P
(CH)
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
D_+B
C1002 D954
LEVEL_R 2.2/50 DS1SS133
C1001 D953
R1112 C1008
DS1SS133
2.2/50
12K 1/50
R1132
C1007
220
1/50
0.3V
3.5V
0.3V 3.4V Q954
R1139
KTC3199 GR
560K
1V
Q955 1V
C926
C925
1/50
1/50
R1129
4.7K
R1072
33K
R1082
5.6K
R1071
R1081
33K
5.6K
IC701
TA7291S
LOADING
MOTOR DRIVER
8 7 6 5 4 3 2 1
m
8 7 6 5 4 3 2 1 l j
P21 12 - H
TO AUDIO SECTION
CNP102
P30 2 - A
TO POWER PWB
9 10
– 23 –
MAIN PWB-A (3/3)
C977
C976
0.1
+B
R1113
12K
R1138
560K
+B
R1140
2.2
+B
R1142
2.2
+B
R1017
10K
R1016
10K
IC701
1 2 3 4 5 6 7 8 9
PNL_OP
R768
2.2 C714
(1/2W)
47/16
R763
2.7K
k n
PNL_CL
11
CD-CH1500
CNP931
+B +B
A_+B
1
+B +B
D_+B
2
D_GND
3
RX_IN
REMOCON
4
POWER
POW_KEY
5
LED-TIMER
POW_IND
6
EX-DATA P24 6 - E
DATA
7
EX-CLK
CNS720
CK
8
LCK2
FROM
LCK
9
DISPLAY PWB
KEY1
KEY1
10
KEY0
KEY0
11
JOG-B
JOG-B
1
JOG-A
JOG-A
2
D_GND
3
P25 7 - H
KEY4
KEY4
4
CNS770
KEY3
KEY3
5
FROM
KEY2
KEY2
JOG PWB
6
A_+B
7
CNP934
CNP935A
DIMMER
1
2 A +B
P24 6 - B
3 D GND
CNS702
4 D +B
LCD-E FROM
5 SCL
DISPLAY PWB
LCD-RW
6
SDA
CNP933
P-OPEN
1 OPEN_SW
P-CLOSE
P25 8 - B
CLOSE_SW
2
3 D_GND
CNP741
4
MOTOR_+
FROM
5
MOTOR_–
MOTOR PWB
12