Sharp CD-PC672 Service Manual page 26

27 28 29 30 31 32 33 34 35 36 37 38 39
C706
1/50
91 92 93 94 95 96 97 98 99 100
1
R779 1K
ENA 2
R778 1K
1 DO 3
VDD
R777 1K
DI 4
R776 1K
CE
5
R775 1K
CLK
6
R774 1K
LCK1 7
R773 1K
LCK2
8
R772 1K
CD DSP RWC 9
R771 1K
RESET
10
C707
X2
15P
11
XL701
(CH)
X1
12
4.19MHz
VPP
13
01
C708
XT2
14 18P
AW
CD DSP WRQ
15
ONTROL R770 1K
VDD
16
R769 1K
MPUTER
PCCL 17
R768 1K
CD DSP COIN
18
R767 1K
SQOUT
19
R766 1K
CD DSP CQCK
20
R765 1K
CD DSP RES
21
R764 1K
FRF(DRF) 22
R763 1K
SLD+
23
R762 1K
28 SPEANA1 SLD– 24
TUN SM AVSS
29 25
T2 RUN
30 SPEANA3
26
SPEANA2
27
28
R761 1K
29
30
40 39 38 37 36 35 34 33 32 31
+B
2 R755
10K
3 R756
10K
4 R757
10K
+B
KEYIN3
KEYIN2
KEYIN1
+B
7
C709
+B 0.022
C710
R780
220/10
10K
+B
+B
D715
DS1SS133
L702
100µH
Q704
D717
C712
KRC102 M
DS1SS133
3.3/50
2 3
C711
C723 1
0.01
0.1/50
RD21 RD22 RD23 RD24 RD32 RD27
820 1.5K 3.9K
1.2K 1.8K 5.6K
SW723 SW724 SW728
SW722 SW725
TUNING TUNING X-BASS/
PLAY
FF UP DOWN DEMO
RD10
RD11 RD12 RD13 RD14
820
1.2K 1.5K 1.8K 2.2K
SW711 SW712
SW714
REC MEMORY/ SW713
SW710 TUNER/
REW
PAUSE SET STOP
BAND
RD01 RD03 RD04
820 1.5K 1.8K
RD02
SW703
1.2K
CLOCK
SW701
POWER
SW704
TIMER/
SLEEP
8 9
Figure 29 SCHEMATIC DIAGRAM (10/12)
C716
47/16
C717
0.022
VSS
1
DATA
2
CLOCK
3
LCK
4
R793 1K
LED711
Q0
5
LED712 R792 1K
Q1
6
LED713 R791 1K
Q2
7
LED711~LED713
Q3
8
:SLI342YCJ
9 Q4
IC702
BU2092F
INPUT/OUTPUT
EXPANDER
+B
+B
R799
4.7K
SW_5V
IC704
D720
DS1SS133
KIA7042AP
+B
RESET
UNSW_5V
1 3
RX701
2
REMOTE
SENSOR
1 2 3
C722
C713
C714
10/50
0.022
0.022
RD28 RD29 RD30 RD31
6.8K 68K
12K 22K +B
SW729
SW730 SW732
SW731
SW733
EQUALI
DIMMER
PHANTOM NORMAL
ZER BY PASS
RD15 RD16
3.3K 3.9K
SW717
CD
SW716
SW715
VIDEO TAPE
FW701
6
RD05 RD07
RD06
2.2K 3.3K 3.9K
SW705 SW707
SW706
DISK 1 DISK 2 DISK 3
1
+B
10
– 29 –
CD-PC672
+B
R781
10K
VDD
8 1
OE 7 1
Q11
6 1
R782 1K LED721
Q10
1 5
R783 1K LED720
Q9
4 1
LED719
R784 1K
Q8
1 3
LED718
R785 1K
Q7
1 2
LED717
R786 1K
Q6
1 1
LED716
R787 1K
Q5
1 0
LED716,LED717,LED721:SLI342YCJ
LED719,LED720:SLI342YCE
LED718:SLI325YC
+B
+B
CNS12
RWC(DSP)
1 1
WRQ(DSP)
2 2
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
PCCL
15 15
SWITCH PWB-A3
RS711 1.5K
IC703
BU2092F
INPUT/
OUTPUT
EXPANDER
18 17 16 15 14 13 12
1 2 3 4 5 6 7 8 9
SW709
RD09
OPEN
6.8K
/CLOSE
SW708
DISK
SKIP
11 12
11 10