Test Mode - Sharp XL-1200 Service Manual

DISPLAY PWB
4 3 2 1
1 2 3 4
+B7
VOLTAGE
REGURATOR
A_24V
+B1
P UNIT
+B2
CD +B
+B3
+B4
5V
+B5
+B6
FROM
5 6 7 8 9 10 11 12
CNP703
MUTE
Q601
Q602
L-CH
F651
2.5A 125V
D651~D654
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 11 BLOCK DIAGRAM (2/4)
AUX R
TUN R
CD R
14 11 10 9 8
15 13 12
16 17 18 19 20 21 22 23
CD L
TUN L
IC401
AUX L
LC75342M
FUNCTION/VOLUME
EQUALIZER
IC901
LA4282
POWER AMP.
2 3 4
5
R-CH
+B
Q101
Q102
1 1
2 2
3 3
4 4
TF
IC681
AN78L05
VOLTAGE
REGULATOR
3 3 1
2
D_GND 2
1
P_CONT
D681~D684
POWER PWB-B
AC 120V,60Hz
– 11 –
XL-1200/1200C
MAIN PWB
R-CH OUT
6 4 3 2 1
7 5
LOGIC
24 25 26 27 28 29
30
L-CH OUT
+B6 A_12V
7
10 11 9 12
L-CH R-CH
T651
POWER
TRANSFORMER
(MAIN)
1 3
1 3
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