CD-DP2500 (serv.man25). Block diagram - Sharp Audio Service Manual (repair manual). Page 3

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– 25 –
CD-DP2500H
 Figure 25 BLOCK DIAGRAM (3/3)
Q709
IC804
IC801
IC802
KIA7810AP
KIA7805AP
AN78L05
IC601
IC602
IC603
KIA4558P
OPE AMP.
IC702
BU2092F
VOLUME
JOG701
Front
Speaker
Center
Speaker
L-ch
R-ch
L-ch
R-ch
Rear
Speaker
SO901
Speaker Terminal
IC703
BU2092F
~
1 2 3 
6
14
53
33
27
32
54 55 56
FL701
DISPLAY
9  8  7  24 23 22 21
18
17
1 
IC701
IX0333AW
SYSTEM MICROCOMPUTER 
VDD
+B7
MEMORY
BACK  UP
VDD 
XL701
   KEY  
SW701~SW707
SW710~SW727
+B3
+B7
M
Q910
+B6
TO  CD  
SECTION 
M901
FAN  MOTOR 
M
M701
MOVE  MOTOR 
JK601
HEADPHONES
T.F 
PT801
POWER
TRONSFORMER
(MAIN)
RL801 
AC POWER
SUPPLY CORD    
L801
AC  230-240V, 50Hz
PT802
POWER
TRONSFORMER
Q803
+B8 
BAIS
VF1
VF2
VROAD
/T2 
EC 
D801
D802
D803
~D806 
Q804
D807
~D809
D818
2 
3 
1 
4
8
+B7
+B4
–B1
RX701 
Q701
Q702
Q703
Q710
Q711
Q712
9
8
7
10
7
10
L-OUT 
IC901
STK40271
POWER  AMP. 
IC902
STK40203
POWER  AMP. 
–B1
+B3
+B1
L
L
L
R
R
R
9
13
8
–B2
+B2
R-OUT 
Q401
Q402
Q503
Q504
Q751
Q753
1
2
ZD801 
+B5 
–B3(–15V)
+B4(M+10V)
+B6 
+B2 
(A+10V)
(CD+5V) 
(UNSW+5V) 
(SW+5V) 
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
AVDD
SMUTE
~
~
~
1
15
1
15
13
4
10
11
12
13
2
15
41
17
18
19
20
30
25
27
31
32
33
34
36
39
40
46
56
55
54
53
51
50
91
16
86
80
100
92
79
38
37
55
54
53
52
47
VDD
D814~D817
FRONT
F801
T5A L 250V
F802
T5A L 250V
F803
T4A L 250V
F804
T4A L 250V
F805
T2A L 250V
15 16 24
26
25
+B7
+B7
+B7
LED711~LED714
18
12
17
+B7
LED701~LED703
IC704
KIA7042P
RESET
TAPE
MECHANISM
+B7
RL902
RL901
~
~
78
85
60
~
~
4
Q823
SW728~SW732
~

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