Sharp CD-BA120 Service Manual page 27

L701
SPLAY
5 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
2
1
86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
1
VDD
2
-20dBATT
S-BUSY 3
100
8 9G
R702
4
T-BIAS
R703
T_T1/T2 5
R704
REC/PLAY 6
R705
RES OUT 7
R706
DRF 8
R707
WRQ 9
R708
RESET 10
11
X2
IC701
X1 12
XL701 C704
IX0336AWZZ
VPP/IC 13
14
XT2
SYSTEM
R709
CD INT 15
MICROCOMPUTER
VDD 16
R710
CD CLK 17
R711
CD DI 18
R712
CD DO 19
R713
31 KEY 0 CD CE 20
R714
32 KEY 1 21
CE
R715
33 KEY 2 22
T CLK
R716
54 T2 PLAY SW_B DI 23
R717
53 T1 PLAY SW_A DO 24
AVSS 25
52
CD CLAMP SW
M-BUSY/TUN SM 26
51 T2 RUN
SPEANA3 27
SPEANA2 28
SPEANA1 29
SPEANA0 30
45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
+B
LED722
4204SRT
+B
+B
R775
10K
R776
10K
R777
10K
3331
8
6
1273Y
7
Q701
R779
KRC107M
3.3 (1/2W)
3
C707
R744
1/50
1K
R745
100K
C702
C701
220/10
0.022
1K
1K
1K
1K
1K
1K
1K
C703
15P
18P
1K
1K
1K
1K
1K
1K
1K
1K
1K
+B
R725
1K
+B
+B
SW701
POWER
8 9
Figure 27 SCHEMATIC DIAGRAM (10/10)
WRQ(DSP)
RES OUT
CLAMP SW
R769
10K
+B
+B
5V BACK UP
D708
L701
1SS133
100uH
C715
3.3/50
3
2
1
RD13
RD14 RD15 RD16 RD17 RD18
680
820 1K 1.5K 2.2K 2.7K
SW716
SW715 SW717
SW714
SW718
TUNING/ SW719
MEMORY/
TAPE
TIME
CD REWIND
SET
FAST
DOWN
FORWARD
RD25
680
RD10 RD12
RD11
820
1K 1.5K
SW713
SW711
VOL
X-BASS
SW712
DOWN
VOL UP
RD01 RD02
RD03
RD04 RD05 RD06
680 820
1K
1.5K 2.2K 2.7K
SW703
TIMER
SW702
CLOCK
10
– 27 –
CD-BA120/125
BI702
CD INT
1 1 CD INT
2 2 WRQ(DSP)
DRF
3 3 DRF
CD CE
CD CE
4 4
CD DO
5 5 CD DO CNP12
CD DI
CD DI
6 6 P19 12 - F
CD CLK
CD CLK
TO CD
7 7
SERVO PWB
RES OUT
8 8
CLAMP SW
9
9
CD_GND
D_GND
10
10
CNS702
FFC18
1
1 CE
2 DO
3 DI
4 CLK
5 T_BIAS
6 T_T1/T2
REC/PLAY
7
M_GND
8
9 M_10V
10 SMUTE
11 VF1
-VP
12
13 VF2
AC_RLY CONT
14
+B
15 UN_SW 5V
16 D_GND
+B
17 SW_5V
18 POWER
CNP701
18
+B
D706
1SS133
+B
R772
4.7K
D710
IC704
1SS133
KIA7042P
REST
D711
+B 1SS133
3 1
RX701
R773
2 REMOTE SENSOR
100
C716 1 2 3
C717
0.022
C719
10/50 C718
47/25
0.022
RD19 RD21 RD22 RD24
RD20 RD23
3.9K 5.6K 10K 15K 100K
33K
SW724
SW721
SW720 SW723 SW725
TUNING
STOP
PLAY REC TUNER
UP
RD08 RD09
RD07 RD26
56K 100K
3.9K 6.8K
SW709 SW710
DISC OPEN/
SKIP CLOSE
DISPLAY PWB-A2
11
P21 12 - D
CNP701
TO MAIN PWB
12