Sharp XL-70 Service Manual page 21

R_MUTE
SWITCHING
CNS704
SD
FM ST
DO
CL
CE
DI
CD+B
P MUTE
P-STB
351
J5.1B
A_12V
ND
SO401
R-MUTE
A_12V
Q360
LE
ER
STEREO
SD
C MUTE
Q105
Q106
REC
1 2 3 4 5 6 7 8 9 10
11
TO DISPLAY PWB
9
8
7
6 TO
DISPLAY
5
PWB
4
3
2
1
R-CH
VIDEO/
AUX
INPUT
L-CH
SUB
WOOFER
OUT
REC L/R CH
TAPE L/R CH
Q601
Q602
MUTE
CD_6.2V
Q607
VOLTAGE
REGULATOR
MECHA 12V
Q605
(M_12V)
AUDIO 12V
Q604
(A_12V)
1 2 3 4 5 6 7
CNP605
TO CD SERVO PWB
Figure 21 BLOCK DIAGRAM (2/4)
AUX R
TAPE R
TUN R
CD R
15 14 13 12
IC401
FUNCTION/VOLUME EQUALIZER
LC75342M
16 17 18 19
CD L
TUN L
TAPE L
AUX L
L-CH IN 13
R-CH IN
9
IC601
14
LA4451
NF
POWER
AMP.
8
11
VCC
12 7
2 2
1 1
P-CONT
CNP652
CNS652
1
2
2 1
Q606
GND
Q608
Q609
CD+B
CNP681
3
FROM
2
DISPLAY
PWB
1
Q603
– 21 –
R-CH OUT
REC R CH
11 10 9 8 7 6 5
20 21 22 23 24 25 26
REC L CH
L-CH OUT
2
L-CH OUT
5
R-CH OUT
3
4
D651~D654
F651
4A 125V
GND
D656~D659
F652
1.6A 125V
GND
VOLTAGE REGULATOR
Q683
Q682
Q681
D681~D684
T681
SUB POWER
TRANSFORMER
XL-70/70C
4 3 2 1
LOGIC
27 28 29 30
A_12V
L-CH
+
SO601
SPEAKER
TERMINALS
+
J601
HEADPHONES
L-CH
T651
MAIN POWER
TRANSFORMER
T.F
RLY681
SO651
AC POWER
INPUT SOCKET
AC120V,60Hz