XL-3000 (serv.man5). Notes on diagrams and Block Diagrams - Sharp Audio Service Manual (repair manual). Page 3

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– 25 –
XL-3000H
VOLTAGE
REGULATOR
3 
1 
3 
2 
1 
USWD_5R6V
P_CONT
D_GND
3 
2 
1 
AC INPUT
SOCKET
AC230V,50Hz 
AC 230V,50Hz 
AC POWER SUPPLY CORD
LINE
FILTER
POWER
TRANSFORMER
(SUB) 
FROM
DISPLAY PWB
POWER PWB-B
CNP651
SO655 
LF651 
IC681
AN78L05 
D688
1N4004
RLY601
CNP707
T681
D681~D684
Q683
Q681
5 
4 
3 
2 
1 
5 
4 
3 
2 
1 
3 
1 
POWER
TRANSFORMER
(MAIN)  
TF
T651
T3.15A  L 250V
T3.15A  L 250V
F652
CNP801
F651
T1.25A  L 250V
F653
Q606
Q607
Q904
D651~D654
D657~D660
Q101
Q104
Q601
Q602
Q102
Q103
Q605
Q603
Q604
Q608
Q609
Q903
CD +B
5V
–B
–B
+B
CD_6R2V 
+B1
+B2
+B3
+B4
+B5
+B6
M_12V 
A_12V
A_24V
15  
13  
12  
11  
10  
9 
8 7 
6 
4 
1 
IN2 
GND 
–VCC
PRE 
–VE2
+VE2
–VCC
+VCC
–VE1
+VE1
+VCC
PRE 
IN1 
POWER AMP.
IC601
STK40202 
L-CH
L-CH
R-CH
R-CH
L-CH
R-CH
SPEAKER TERMINAL
+ 
+ 
SO601 
HEADPHONES
1 
2 
3 
4 
5 
9 
10
J601
VSS 
VDD
IC401 
LC75342M
15
14
13
12
11
10
9 
17
18
19
20
21
22
23
24 
25
26
27
28
29
16
8 
7 
6 
5 
4 3 2 1 
CE
DI
30
CL
LOGIC 
TUN  L 
CD  L
TUN  R
R-CH OUT
L-CH OUT
A_12V
NC
FUNCTION/VOLUME
EQUALIZER  
8 
7
6
5 
1
2
3
4 
Q201
Q203
A_12V
L-CH OUT
R-CH OUT
R-CH IN
SURROUND
ON/OFF
IC201
KIA4558P
SURROUND CONTROL
L-CH IN
AUX  R
AUX  L
CD  R
SURROUND
MUTE
VOLTAGE
REGURATOR
VOLTAGE
REGURATOR
VOLTAGE
REGURATOR
+B6
+B6
5 4 3 2 1 
_
D_GND
TUN  L
TUN  R
A_GND
16  
15  
14  
1 2 3 4 5 6 7 8 9 
10   11   12   13  
CLE
DATA
VSM
SD
STEREO
DO
CE
DI
CL
CD  +B
P_MUTE
P_STB
D_GND 
5V
A_24V 
+B1
+B3
+B6
+B5
CNP703
B
FROM
DISPLAY PWB
+B7
L 
P UNIT 
A_GND 
D_GND 
MAIN PWB
Figure 25 BLOCK DIAGRAM (2/4)

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