Sharp XL-3000 Service Manual page 23

FROM
DISPLAY PWB
B
5 4 3 2 1
1 2 3 4
+B7
VOLTAGE
REGURATOR
A_24V
+B1
P UNIT
L
+B2
CD +B
+B3
+B4
5V
+B5
+B6
MAIN PWB
5 6 7 8 9 10 11 12 13
CNP703
SURROUND
MUTE
Q601
Q602
L-CH
F651
3.15A/125V
D651~D654
–B
F652
3.15A/125V
A_GND
F653
1.6A/125V
Q904
D_GND
D657~D660
CD_6R2V
Q606
Q607
Q608
Q609
VOLTAGE
REGURATOR
M_12V
Q605
Q903
A_12V
Q603
Q604
Figure 23 BLOCK DIAGRAM (2/4)
SURROUND
ON/OFF
Q203
Q201
AUX R
TUN R
CD R
15 14 13 12 11 10 9 8
16 17 18 19 20 21 22 23
CD L
TUN L
IC401
AUX L
LC75342M
FUNCTION/VOLUME
EQUALIZER
IC601
STK40202
POWER AMP.
1 15 4 8 9
R-CH
+B
–B
Q102 Q103
Q101
Q104
1 1
2 2
3 3
4 4
5 5
TF
T651
POWER
TRANSFORMER(MAIN)
IC681
AN78L05
VOLTAGE
REGULATOR
3 3 1
2
D_GND
2
1
P_CONT
D681~D684
AC 120V,60Hz
– 23 –
XL-3000/3000C
R-CH IN
R-CH OUT
+B6
A_12V
6 7
5 8
4 3 2 1
L-CH OUT
L-CH IN
R-CH OUT
7 6 5 4 3 2 1
LOGIC
24 25 26 27 28 29 30
L-CH OUT
+B6 A_12V
12 6 7 10 11 13
L-CH R-CH
1
3
1 3
POWER PWB
CNP651
Q681
VOLTAGE
REGURATOR
RLY601
Q683
T681
POWER
TRANSFORMER
(SUB)
AC POWER SUPPLY CORD
+
L-CH
R-CH
+
J601
HEADPHONES
3
2
1
4
5
9
10
SO655
AC INPUT
SOCKET
AC120V,60Hz