Sharp CD-C612 Service Manual page 27

22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
DO
P10 1 DI
VDD
CE
CLK
CD DSP RWC
RESET
10
X2
11
IC701 X1 12
IX0280AW VPP
13
YSTEM CONTROL
14
MICROCOMPUTER
CD DSP WRQ 15
VDD 16
PCCL 17
CD DSP COIN 18
19
SQOUT
CD DSP CQCK 20
21
CD DSP RES
22
FRF(DRF)
28
SPEANA1
REC/
23
SLD+
29
PLAY
AC
24
30 SLD–
T2 RUN
RLY-CON
25
AVSS
SPEANA3 26
SPEANA2 27
28
29
30
45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
R752 R755
10K 10K
R753 R756
10K 10K
R754
R757
10K
10K
+B
BI701
7
37 38 39
C706
1/50
C709
0.022
1
2 C710
220/10
R778 1K
3
R777 1K
4
R776 1K
5
R775 1K
6
7
8
R772 1K
9
R771 1K
C707
XL701 15P
4.19MHz
C708
18P
R770 1K
R769 1K
R768 1K
R767 1K
R766 1K
R765 1K
R764 1K
R763 1K
R762 1K
R745
1K
5V BACK UP
L702
100µH
RD21 RD22 RD23
820 1.2K 1.5K
SW722
SW723 SW724
FF TUNING TUNING
UP DOWN
RD10 RD11 RD12
820 1.2K 1.5K
SW712
SW710 SW711
REV REC MEMORY/
PAUSE
SET
RD01 RD02 RD03
820 1.2K 1.5K
SW701 SW703 SW704
TIMER/
POWER CLOCK
SLEEP
8 9
Figure 27 SCHEMATIC DIAGRAM (10/10)
R780
10K
R711 4.7K
D723
IC704
1SS133
KIA7042AP
Q704
RESET
KRC102 M
C712
3.3/50
2 3
1 3
1
2
C711 R797
0.01 100K
C713
0.022
+B
RD24 RD25 RD26 RD27 RD28
1.8K 2.2K 3.3K 3.9K 6.8K
SW727 SW728 SW729 SW730
SW725 SW726
X-BASS/
PLAY VOLUME VOLUME EQUALIZER DIMMER
DEMO
DOWN UP
RD13 RD14 RD15 RD16
1.8K 2.2K 3.3K
3.9K
SW713
SW714 SW715 SW716 SW717
STOP TUNER/
VIDEO TAPE CD
BAND
RD04 RD05
1.8K 4.7K
10
– 27 –
1 1 RWC(DSP)
2 2 WRQ(DSP)
CO IN(DSP)
3 3
SQ OUT(DSP)
4 4
CQ CK(DSP)
5 5
RES(DSP)
6 6
DRF(ASP)
7 7
D_GND
8 8
SLD+
9 9
SLD–
10 10
PUIN SW
11 11
OPEN/CLOSE
12 12
DISC NO
13 13
UP/DOWN
14 14
15 15 PCCL
CNS12
D721 D722
1SS133 1SS133
D719
1SS133
RX701
REMOTE
SENSOR
R798
100
1 2 3
+B
C715
47/25
RD08
4.7K
1 1
3 3
SWITCH PWB-A3
11
CD-C612
RD09
6.8K
SW708 SW709
DISK OPEN
SKIP /CLOSE
12