Power Section (Dr7Av Model) - Sony HCD-DR7AV Service Manual

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HCD-DR7AV/XB800AV
– POWER SECTION – (DR7AV model)
J801
MIX MIC
MAIN 1
G
SECTION
F-RELAY
(Page 26)
MAIN 1
E
SECTION
22
L-CH IN
(Page 26)
MAIN 2
D804
L
SECTION
EVER +5V
(Page 28)
HEAD PHONE
HP-MUTE
MAIN 2
I
SECTION
STK-POWER
(Page 27)
PROTECT
MAIN 1
M REAR-L
SECTION
(Page 26)
CENTER
MAIN 2
N
SECTION
PL-RELAY
(Page 29)
• R CH : Same as L ch
• SIGNAL PATH
: FM
09
MIC VOLUME
MIC AMP ECHO CONTROL
RV850
IC850 (1/2) IC851
9 LPF 2 IN LPF 1 OUT
11 OP 2 IN LPF 2 OUT
1
LPF 1 IN OP 2 OUT
POWER AMP & VOLUME CONTROL
IC801
15
THERMAL VOLUME
SENSOR CONTROL
5 6
13 12 8
PROTECT
VOLUME
DC AMP
CONTROL
Q433-434
D802, 852
L-CH THERMAL
THERMAL
SENSOR PROTECT SWITCH
Q831-832 Q801
MUTE
CONTROL
Q834
MUTE
Q833
MUTE MUTE
DRIVE SWITCH
Q804 Q803
SWITCH –35V REG
VF (–35V)
Q904
– 29 –
18/2/2013
MIC LEVEL MIC AMP
RV851 IC850 (2/2)
2
8
10
RY401
RELAY
DRIVER
Q401-402
LATCH
RY402
DRIVER
Q432
RELAY
DRIVER
Q403, 407
LATCH PROTECT
DRIVER SWITCH
Q437 Q431
PROTECT
SWITCH
Q439
+UNREG. 12V
D833-836
UN +10V
UN –10V D841-844
+VH AC-L
RECT
D831 AC-L
Q903
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DISPLAY
K
MIC-SIG
SECTION
(Page 33)
MAIN 1
C
MIC-SIG SECTION
(Page 25)
J803
PHONES
MAIN 2
H
SECTION
HP.SW
(Page 27)
TM401
L
FRONT
R-CH
R
TM402
SURROUND
L
REAR
R-CH R
CENTER
POWER
TRANSFORMER
T951
VF
VF
RECT
SP, EA
VOLTAGE
RECT
SELECTOR
VS901
JW969
AUS ONLY
RECT
JW968
TH ONLY
D832
– 30 –
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AC
IN