Schematic Diagram - Pwr Amp/Power Section - Sony HCD-HP8V Service Manual

HCD-HP8V
8-15. Schematic Diagram — PWR AMP/Power Section —
FAN
3P
14.3
C516
FAN DRIVE
0.22U
0.22U
0
JR503 JR502
14.4
R548
100
FAN DRIVE
F
TO
MAIN
PROTECT
BOARD
SWITCH
CN404
(Page 42)
IC501
JR504
220P
220P
PWR AMP BOARD
• See page 49 for IC Block Diagrams.
SPEAKER
IMPEADANCE
USE 6-16Ω
- +
4.7K
C528 0.1U
Q507,508 PROTECT DETECT
4.7K
(TO CHASSIS) C527
PROTECT
9.9
0.1U
CONT
3.9 0
PROTECT SWITCH
0 10
0
3.3 0
PROTECT
SWITCH
0
RELAY DRIVE
0.8 0.2
POWER AMP
JR505
220P
1K
10K
1K
0
MUTE
2SC3143S
3.2
47K
SENSOR (FAN)
BOARD
- +
4P
C531
C532
C529
C530
R520 R521
10 1/2W 10 1/2W
C524 C523
0.1U 0.1U
0
2SC3143S
C526 C525
0 0
0.1U 0.1U
Q502,503
OVER LOAD
DETECTOR
47K
56K
9.6
Q504,506
OVER HEAT 0 0
0
DETECTOR
0.6
FAN
SWITCH
No mark:FM
2P
2P
46 46
PWR TRANS BOARD
4P
POWER TRANSFORMER
(MAIN)
G
TO
MAIN
BOARD
CN401
2.2
(Page 42)
SUB TRANS BOARD
*CN905
EXCEPT TH
4P:EXCEPT TH
*
2P:TH
*
EXCEPT TH
*
*
1000U
16V
POWER TRANSFORMER
(SUB)
*
EXCEPT TH TH
JW901
JW902
JW903
JW904
JW905
JW906
JW907
JW908
JW909
JW911
JW912
JW913
JW914
JW915
*
*CN906
4P:EXCEPT TH
2P:TH
*
*
S902
VOLTAGE SELECTOR
120V
220V
230-240V
*
*
*
*
*