Sharp CDC2900 - 3-CD Compact Stereo System Service Manual page 29

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
C706
1/50
89 90 91 92 93 94 95 96 97 98 99 100
1
2
R778 1K
DO 3
R777 1K
DI 4
1 VDD
R776 1K
CE
5
R775 1K
CLK 6
R774 1K
LCK1 7
R772
8
1K
CD DSP RWC
9
R771 1K
IC701
RESET
10
IX0280AW
X2 11
TEM CONTROL XL701
C708
X1
12
4.19 MHz 18P
ROCOMPUTER
VPP 13
14 R770
1K
15
CD DSP WRQ
0 L:DEMOSTART
VDD 16
0 H:ECOSTART
R769 1K
PCCL
17
R768 1K
18
CD DSP COIN
R767 1K
SQOUT 19
R766 1K
20
CD DSP CQCK
R765 1K
CD DSP RES 21
R764 1K
22
FRF(DRF)
R763 1K
SLD+ 23
R762 1K
24
SLD–
LAY 30 T2 RUN
AVSS 25
Y-CON
SPEANA3 26
SPEANA2
27
SPEANA1 28
29
30
42 41 40 39 38 37 36 35 34 33 32 31
R745
1K
2 +B
R755
10K
R753
R756
10K
10K
R754 R757
10K 10K
+B
+B
+B
RD01
820
SW701
POWER
LED716 SLI342YCJ
STOP
LED717 SLI342YCJ
+B PLAY
7
C709
0.022
+B
C710
220/10
C707
15P
+B
5V BACK UP
L702
+B
D723
100 H
1SS133
Q704
C712
KRC102 M
3.3/50
2 3
1
C711
0.01
RD21 RD22 RD23 RD24 RD25 RD26
820 1.2K 1.5K 1.8K 2.2K 3.3K
SW722 SW723 SW724 SW725 SW726 SW727
FF TUNING TUNING PLAY VOLUME VOLUME X-BASS/
UP DOWN DOWN UP DEMO
RD10 RD11 RD12 RD13 RD14 RD15
820 1.2K 1.5K 1.8K 2.2K 3.3K
SW713 SW714 SW715
SW710 SW711 SW712
REC
REV MEMORY/ STOP TUNER/ VIDEO
PAUSE
SET BAND
8 8
RD02 RD03 RD04
SW703 SW704
1.2K 1.5K 1.8K
+B
TIMER/
CLOCK
SLEEP
R787 1K
R786 1K
1 1
+B
+B
8 9
Figure 29 SCHEMATIC DIAGRAM (10/10)
R780
10K
+B
+B
D721
1SS133
R711
+B
4.7K
IC704
+B
KIA7042AP D720
1SS133 D719
RESET
1SS133
1 3
RX701 R798
2 100
REMOTE
C713
SENSOR
0.022
1 2 3
+B
RD27 RD28
3.9K 6.8K
SW728 SW729
SW730
EQUAL DIMMER
IZER
+B
RD16
3.9K
SW716 SW717
TAPE CD
RD05 RD06 RD07 RD09
2.2K 3.3K 3.9K 6.8K
SW707 SW708 SW709
SW705 SW706
DISC2 DISC3 DISC OPEN
DISC1
SKIP /CLOSE
10
– 29 –
CD-C622/C2900
1 1 RWC(DSP)
2 2 WRQ(DSP)
CO IN(DSP)
3 3
4 4 SQ OUT(DSP)
CQ CK(DSP)
5 5
6 6 RES(DSP)
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
PCCL
15 15
BI702
CNS12
1 +5V
1
2 2 AC_RLY CON
UN_SW 5V
3 3
D_GND
4 4
BI703 CNS806
SWITCH PWB-A4
+B +B
RS711 +B +B
1.5K
+B
18 17 16 15 14 13 12 11 10
1 2 3 4 5 6 7 8 9
+B
+B
+B
11 12