Power Section (W900Av Model); Display Section - Sony HCD-DR8AV Service Manual

POWER SECTION (W900AV model)

J801
MIX MIC
MAIN 1
G
SECTION
F-RELAY
POWER AMP & VOLUME CONTROL
(Page 26)
MAIN 1
E
SECTION
22
L-CH IN
(Page 26)
VOLUME
CONTROL
5 6
VOLUME
CONTROL
D802, 852
MUTE
STK-POWER SWITCH
MAIN 2
I Q803,804
SECTION
(Page 27)
PROTECT
HP-MUTE
MAIN 2
D804
L
SECTION SWITCH
EVER +5V
Q833
(Page 28)
MUTE
SWITCH
Q103,104
REAR-L 12
MAIN 1
M
SECTION
(Page 26)
CENTER 16
MAIN 2
N
SECTION
PL-RELAY
(Page 29)
• R CH : Same as L ch
• SIGNAL PATH
: FM
16
MAIN 2
P ECO
SECTION
(Page 27)
POWER
MIC AMP MIC VOLUME
IC850 (1/2) RV850
IC801
15
THERMAL
SENSOR
PRE
-VCC
16 12
PROTECT
OVERHEAT OVERLOAD
R-CH
DC DET
DET DET
Q433,434
Q831,832 Q801
PROTECT
DET
Q432
Q834
SWITCH
-VH PROTECT
BUFFER
Q439
OVERHEAT OVERLOAD OVERLOAD
DET DET DET
Q131,132 Q101 Q151
14 7
CCC
THERMAL
SENSOR
8
9
SURROUND AMP
IC101
–35V REG
VF (–35V)
Q903,904
+VH
RECT
-VH D831
–30V REG
VG
Q903
SWITCH
Q907
SWITCH
Q906
— 31 —
MIC AMP
IC850 (2/2)
RELAY
DRIVER
Q401-402
RY401
HEADPHONE
MUTE
Q805
RELAY DBFB
PROTECT
DRIVER SWITCH DET
R-CH
Q437 Q431 D803
RY402
RELAY
POWER
DRIVER
TRANSFORMER
Q403, 407
T951
VF
VF
RECT
+UNREG. 12V
D833-836
UN +10V
RECT
D841-844
-VH UN –10V
F961
F963
+VL
RECT
F964
-VL D832
F962
SUB-TRANSFORMER
T901
+5.6V REG RECT
+5.6V 3 1
IC901 D902-905
POWER SWITCH
RECT
Q902
D907-910
SWITCH
Q904,905
VF
VF
D912
VF
RELAY
SWITCH
Q901
MAIN 1
C
SECTION
MIC-SIG
(Page 25)
DISPLAY
K
MIC-SIG SECTION
(Page 33)
TM401
L
FRONT
R-CH
R
J803
R-CH
PHONES
MAIN 1
O
SECTION
DBFB
(Page 26)
MAIN 2
H
SECTION
HP.SW
(Page 27)
TM402
SURROUND
L
REAR
R-CH
R
CENTER
AC
IN
STANDBY
RELAY
RY901
— 32 —
HCD-DR8AV/W900AV