Power Section (Dr8Av Model) - Sony HCD-DR8AV Service Manual

HCD-DR8AV/W900AV

POWER SECTION (DR8AV model)

J801
MIX MIC
MAIN 1
G
SECTION
F-RELAY
POWER AMP & VOLUME CONTROL
(Page 26)
MAIN 1
E
SECTION
L-CH IN 22
(Page 26)
CONTROL
VOLUME
CONTROL
D802, 852
STK-POWER
SWITCH
MAIN 2
I Q803,804
SECTION
(Page 27)
PROTECT
HP-MUTE
MAIN 2
D804
L
SECTION
SWITCH
EVER +5V
(Page 28)
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
MIC AMP MIC VOLUME
IC850 (1/2) RV850
IC801
15
VOLUME THERMAL
SENSOR
PRE
-VCC
5 6 16 12
PROTECT
OVERHEAT OVERLOAD
R-CH
DC DET
DET DET
Q831,832 Q801 Q433,434
MUTE
Q834
SWITCH
-VH
Q833
MUTE OVERHEAT OVERLOAD OVERLOAD
DET DET DET
Q131,132 Q101 Q151
14 7
CCC
THERMAL
SENSOR
8
9
SURROUND AMP
IC101
VF (–35V)
+VH
-VH
— 29 —
MIC AMP
IC850 (2/2)
RELAY
DRIVER
Q401-402
RY401
HEADPHONE
MUTE
Q805
PROTECT PROTECT RELAY
DET DRIVER SWITCH
R-CH
Q432 Q437 Q431
PROTECT
BUFFER
Q439
FAN DET
R-CH
D405-409
RY402
RELAY
DRIVER
Q403, 407
POWER
TRANSFORMER
T951
VF
VF
RECT
+UNREG. 12V
D833-836
UN +10V
RECT
–35V REG D841-844
-VH UN –10V
Q903,904
F961
F963
+VL
RECT RECT
F964
D831 -VL D832
F962
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
DBFB O
SECTION
DBFB
DET
(Page 26)
D803
MAIN 2
HP.SW
H
SECTION
(Page 27)
FAN.DET
TM402 SURROUND
L
REAR
R-CH
R
CENTER
E, EA, AR, SP MODEL
240V - 220V - 120V
VOLTAGE SELECTOR
VS901
AUS MODEL
JW969 JW967
JW971 JW965 JW966
AC
IN
MX MODEL
F951
E, EA, AR, SP MODEL
• Abbreviation
AUS : Australian model
EA : Saudi Arabia model
MX : Mexican model
SP : Singapore model
AR : Argentina model
— 30 —