Service manual

– 29 –
MD-M3/M1
Figure 29 BLOCK DIAGRAM (3/5)
2
5
6
1
4
3
9
13
8
14
7
11
10
12
RL990
F995
4A/125V
F996
3.15A/125V
F997
3.15A/125V
1 3
F998
F999
2
7
3
5
1
11
12
5
1
3
10
4
8
SO990
AC INPUT
AC 120V
60Hz
POWER TRANSFORMER (SUB)
POWER TRANSFORMER (MAIN)
D991-D994
D951
D952
Q951
Q801
Q809
Q802
Q803
Q808
Q810
Q811
Q812
Q813
800mA/125V
1.6A/125V
MDDVDD
TO CD
TO MD
V LOAD
FL ON
MDAVCC
+12V(D)
+12V(A)
-
ICX11
LA4451
POWER AMP.
TMX11
SPEAKER
TERMINAL
QP15
MUTE
ICV11
NJM4565D
HEADPHONE
AMP.
+5V BACK UP
+5V(D)
+5V(D)
QX11
MUTE
QX14QX12
QX13
QP16
QR11
SY MUTE
JV91
Q911
SURROUND
ICP12
LA2610
SURROUND
VCC
3
SURROUND
VCC
+B1
AMP. MUTE
AMP. HPSW
AMP. HPSW
QX53
M
QX52
QX51FAN
MOTOR
MOX51
AMP. FAN
+B2
VDD
VSS
+B3
–B2
+B7
+B9
+B8
+B2
+B10
+B10
–30V
–B1
+B1
+B2
+B3
+B4
+B4
+B5
+B6
VDD
VSS
+B3
–B2
–B1
TO DISPLAY SECTIONTO DISPLAY SECTION
T
O DISPLAY SECTION
SURROUND
SWITCHING
SY MUTE
QP17
H.P MUTE
CONTROL
SP LEVEL
IC902
AN75L05
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE REGULATOR
CD+7V
D953,D955
RELAY
DRIVER
T991
T990
–B2
12V(A)