Sharp MD-M3 Service Manual page 29

+12V(D)
+B2
+12V(A)
+B3 -
VOLTAGE REGULATOR
+B4
12V(A)
–B2
CD+7V
TO CD
+B5
MDDVDD
TO MD
+B4 +B6
V LOAD
+5V(D)
+B7
+5V BACK UP
+B8
+5V(D)
+B9
MUTE MUTE
QX11 QX13
QX12 QX14
AMP. HPSW
QP16
QP17
H.P MUTE
CONTROL
3
VCC
QR11
10
SY MUTE
1
11
3 12
5
ICP12
LA2610
SURROUND
+B3
–B2
SURROUND
QP15
SWITCHING
SURROUND
VDD
+B3
VSS
–B2
TO DISPLAY SECTION
VOLTAGE
REGULATOR
Q801
VOLTAGE
REGULATOR
Q802
Q803
VOLTAGE
REGULATOR
Q808
VOLTAGE
REGULATOR
Q809
Q810
F998
800mA/125V
VOLTAGE
REGULATOR
Q811
Q812
F999
1.6A/125V
Q813
+B2
+B10
VOLTAGE
REGULATOR
IC902
3 1
AN75L05
2
+B1 ICX11
LA4451
VCC
POWER AMP.
7
10
1
6
9 2
5
13
4
3
8
12
14
11
ICV11
NJM4565D
HEADPHONE
JV91
AMP.
3 1
5 7
4
8
VSS
VDD
FAN QX51
M
MOTOR
QX52
MOX51
QX53
Figure 29 BLOCK DIAGRAM (3/5)
D951
+B1
F995
4A/125V
F996
3.15A/125V
D952
F997
3.15A/125V
–30V
Q951
–B1
D953,D955
RELAY
DRIVER
FL ON
Q911
+B10
D991-D994
T990
POWER TRANSFORMER (SUB)
TMX11
SPEAKER
TERMINAL
+B2
SP LEVEL
AMP. FAN
TO DISPLAY SECTION
– 29 –
MD-M3/M1
T991
POWER TRANSFORMER (MAIN)
RL990
AC INPUT
AC 120V
60Hz
SO990
–B1
TO DISPLAY SECTION