Power Section (Dr4, Dr5, Dr6, Dr440 Model) - Sony HCD-DR4 Service Manual

HCD-DR4/DR5/DR6/DR440/W300/W5000/XB500
Q Q
3 7 6 3 1 5 1 5 0
– POWER SECTION – (DR4, DR5, DR6, DR440 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
T E
L 1 3 9 4 2 2 9 6 5 1 3
MAIN 2
I
SECTION STK-POWER
(Page 27)
PROTECT
• R CH : Same as L ch
• SIGNAL PATH
: FM
09
w w w
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
x a o
. i
– 29 –
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MIC LEVEL MIC AMP
RV851 IC850 (2/2)
2
8
10
RY401
RELAY
DRIVER
Q401-402
LATCH
DRIVER
Q432
LATCH PROTECT
DRIVER SWITCH
Q437 Q431
PROTECT
SWITCH
Q439
Q Q
3 7
+UNREG. 12V
D833-836
UN +10V
D841-844
UN –10V
+VH AC-L
RECT
D831
AC-L
Q903
u 1 6 3
y
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2 4
8 9 9
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
6 3 1 5 1 5 0 8 9
POWER
TRANSFORMER
T951
VF
VF
RECT
EXCEPT MX,AUS,TH
VOLTAGE
RECT
SELECTOR
VS901
JW969
AUS,TH
ONLY
RECT MX ONLY
JW968
D832
JW966
m
c o
.
– 30 –
2
8 9 9
2 4 9 8 2 9 9
AC
IN