Sony HCD-EA20 - Power Supply Section

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HCD-EA20
– POWER SUPPLY SECTION –
(AC IN)
13V
+VCC
-VCC
TO
POWER
AMP
Q901
RELAY DRIVE
Q681
RESET SWITCH
D952
RECT
D951
RECT
IC951
+13V
REGULATOR
IC654
+10V
REGULATOR
IC952
+6.8V
REGULATOR
M12V
10V
Q501, 502
B+ SWITCH
VDD
(KEY, ENC CIRCUIT)
IC953
+3.3V
REGULATOR
+6.8V
IC653
+3.9V
REGULATOR
IC907
+3.3V
REGULATOR
D5V
+3.9V
A3V-2
(ZIVA)
IC652
+5V
REGULATOR
V5V
F1
F2
VFL
IC392
+3.3V
REGULATOR
AUDIO D3.3V
IC651
+5V
REGULATOR
A5V
TO FLUORESCENT
INDICATOR TUBE
DC/DC
CONVERTER
T801
Q601, 602
B+ SWITCH
DVD 3.3V
IC211
+1.8V
REGULATOR
IC911
+4V
REGULATOR
E3.9V
VDD
C681
0.22F
VDD
+1.8V
IC681
RESET SIGNAL
GENERATOR
T902
MAIN
TRANSFORMER
T901
SUB
TRANSFORMER
D911-914
RECT
RECT
D806 – 809
OSC
Q803, 804
16RESET
2SUBTRANS-MONITOR
23AC_CUT
1UNREG MONITOR
9AC ON/OFF
IC501 (3/3)
SYSTEM CONTROLLER
LOD_POSI
LOD_NEG
OUT1 FIN
OUT2 RIN
IC671
LOADING MOTOR DRIVE
(LOADING)
M
7
9
4
2
19
24
OUT SW
IN SW
26
OUT
IN
25
S001
(DISC IN/OUT)
D651, 652
D915
D684
D683
RY901
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
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