Sharp CD-C661H Service Manual page 23

2 23 24 25 26 27 28 29 30 31 32 33 34 35 36
6 87 88 89 90 91 92 93 94 95 96 97 98 99 100
1
2
3
1 VDD
S10
DI 4
VLOAD 2 NC
CE
DO
S11 3
CLK 6
LCK1
IC701
LCK2
8
IX0281AW
CD DSP RWC
RESET
10
YSTEM CONTROL
X2
11
ICROCOMPUTER
X1
12
VPP
13
XT2
14
CD DSP WRQ 15
VDD 16
T-BIAS
PCCL 17
REC/PLAY
CD DSP COIN
18
AC RLY-CON
SQOUT
19
CD DSP CQCK
20
CD DSP RES
21
FRF(DRF)
22
H:ECHO START
SPEANA1
28 SLD+
L:DEMO START
23
TUN SM
29 SLD–
24
T2 RUN
30
AVSS
25
SPEANA3
26
SPEANA2
27
28
29
30
5 44 43 42 41 40 39 38 37 36 35 34 33 32 31
+B
+B
R755
10K
R752
10K
R756
10K
R753
10K
R754 R757
10K 10K
+B
7
37 38 39
C706
1/50
C709
0.022
+B
C710
1K 220/10
R778
1K
R777
R776 1K
5
R775 1K
R774
1K
7
R773
1K
1K
R772
9
R771 C707
1K
XL701 15P
4.19MHz
C708
18P
R770 1K
+B
R769
1K
R768 1K
R767
1K
R766 1K
R765 1K
R764
1K
R763 1K
R762
1K
R761
1K
L702
100µH
+B
RD21 RD22 RD23
820 1.2K 1.5K
SW722 SW723 SW724
TUNING TUNING
FF
UP DOWN
RD10 RD11 RD12
820 1.2K 1.5K
REC MEMORY/
REW
PAUSE SET
SW710 SW711 SW712
RD01 RD02 RD03
820 1.2K 1.5K
SW701 SW702
SW703
PS
POWER CLOCK
SELECT
8
Figure 23 SCHEMATIC DIAGRAM (4/9)
P27 7 - G
TO CD SERVO PWB
CNP12
1 2 3 4 5 6 7 8 9 14
10 11 12 13 15
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R799
5V BACK UP 4.7K
IC704
D705 KIA7042AP
REMOTE
1SS133
+B
SENSOR
1 3
Q704 RESET
RX701
KRC102 M C712
N63H380A
3.3/50
2
2 3
1
1 2 3
RD24 RD25 RD26 RD27 RD28
2.2K
1.8K 3.3K 3.9K 6.8K
SW725 SW728 SW729
X-BASS/
EQUALIZER DIMMER
PLAY
DEMO
RD13 RD14 RD15 RD16 RD17
1.8K 2.2K 3.3K 3.9K 6.8K
TUNER VIDEO/ PTY/TI
TAPE CD
STOP
(BAND) AUX SEARCH
SW713 SW714 SW715 SW716 SW717 SW718
RD04
1.8K
6
6
SW704
TIMER/
DISC1
SLEEP
1 1
FW703
9 10
– 23 –
CNS12
BI12
R780
+B
10K
IC702
BU2092F
INPUT/OUTPUT
EXPANDER
9 8 7 6 5 4 3 2
10 11 12
13 14 15 16 17 18
LED716,LED717,
LED721,LED723,LED724:SLI342YCJ
LED718:SLI325YC
LED719,LED20:SLI342YCE
+B
+B
+B
D719
1SS133
+B
C714
0.022
+B
SW730
RD18 RD19 RD20
12K 22K 68K
DISPLAY
EON ASPM
SW719 SW720 SW721
RD05 RD06 RD07
RD09
2.2K 3.3K 3.9K 6.8K
SW708
SW705 SW706 SW707 SW709
DISC OPEN
DISC2 DISC3
SKIP /CLOSE
RS701~RS703:47
RS704,RS705:470
LED704:SLI342UCB
11
CD-C661H/HR
+B
1
+B
CNS704
VF2
6 6
–VP
5 5
VF1
4 4
AC_RLY CON
3 3
2 2 UN_SW 5V
D_GND
1 1
SWITCH PWB-A3
RS711
1.5K
IC703
BU2092F
INPUT/OUTPUT
EXPANDER
18 17 16 15 14 13 12 11 10
1 2 3 4 5 6 7 8 9
12