CD-CH1500 (serv.man5). 3 - Schematic diagrams (22-35) - Sharp Audio Service Manual (repair manual). Page 5

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CD-CH1500H/CD-CH1500W
– 26 –
Figure 26 SCHEMATIC DIAGRAM (5/14)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 49.

6


C705 10P 
C706 0.022
BI705B 
SW724
CD 5
EJECT 
SW725
CD 6
EJECT 
SW720
CD 1
EJECT 
R720
6.8K
R710
4.7K
SW722
CD 3
EJECT 
SW723
CD 4
EJECT 
R735
33K
C703
0.022
R792
2.7K
SW712
VOLUME
UP 
SW711
VOLUME
DOWN 
R733
1.8K
R726
2.2K
Q724
KRA102 M
Q720
KRA102 M
Q721
KRA102 M
Q723
KRA102 M
Q725
KRA102 M
Q722
KRA102 M
R791
2.7K
R723
1.8K
SW731
CD 2
PLAY 
R712
2.2K
SW710
PANEL
OPEN/CLOSE 
R708
2.7K
R729
15K
SW734
CD 5
PLAY 
SW735
CD 6
PLAY 
SW730
CD 1
PLAY 
R736
33K
R721
6.8K
R711
4.7K
SW732
CD 3
PLAY 
SW733
CD 4
PLAY 
R707
2.7K
R728
15K
SW721
CD 2
EJECT 
R747
1K
LED759 K5052UL
C708 0.022
LED731
HLMP1700
R705
1K
R701
1K
R702
1K
LED754 K5052UL
LED756 K5052UL
LED757 K5052UL
LED758 K5052UL
R704
1K
R703
1K
R706
1K
LED755 K5052UL
C716
2.2/50
CNP701
R750
100
C709 47/25
C707
100P
SW701
ON/STAND-BY
RX701
N64H380A
REMOTE
SENSOR
R715    1K
R714    1K
R713    1K
C704 10P
Q707
KTC3203 Y
R748
10K
BI705A 
CNS702
BI702 
R749
1K
J728
1K
R731
1K
R730
1K
L702
2.2
µ
H
BI720 
CNS720 
CNS772 
CNP721 
LCD720
LCD DISPLAY
IC702
INPUT/OUTPUT
EXPANDER
BU2092F
R788
330
LED738 LNG995PF
R790 330
R789 150
LED735
LNG995PF
LED737 LNG995PF
   5V
   0.1V
   5V
   3.1V
   3.4V
0.8V
0.1V
0.2V
0V
0V
0V
0V
1.8V
0.3V
8.8V
8.8V
5V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
9.8V
9.8V
9.8V
9.8V
9.8V
9.8V
10V
10V
10V
10V
10V
10V
5V
5V
0V
LED_4 
LED_1 
LED_2 
LED_3 
LED_5 
LED_6 
18
17
16
15
14
13
12
11
10
Q10 
VDD 
__
OE
Q11 
Q9
Q8
Q7
Q6
Q5
Q3
Q4
Q2
Q1
Q0
LCK
CLOCK
VSS

POW_IND 
DATA
CK
LCK 
KEY0
KEY1
POW_KEY 
REMOCON 
D_GND 
D_+B
A_+B

9
10
11




6


VDD 
SCL 
SDA 
A_+B
D_GND 
SDA 
SCL 
VDD 
VSS 
VLCD
D_+5
SCL 
SDA 
A_+10 
D_GND 
DIMMER
DISPLAY PWB-B1
LED_1 
LED_2 
LED_3 
LED_4 
LED_5 
LED_EG

9
10
11


LED A PWB-B2
CD SWITCH PWB-B3
DIMMER
1
1
1
1
1
1
2
2
2
2
2
2
3
3
3
3
3
3
IC702
DATA
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
P25  12 - G
TO MAIN PWB
CNP935A
P25  12 - E
TO MAIN PWB
CNP931
Q720-Q725: LED DRIVER
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