CMT-EP707, HCD-EP707 - Sony Audio Service Manual (repair manual). Page 25

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25
25
HCD-EP707
5-10. SCHEMATIC  DIAGRAM  – POWER AMP Section –
REGULATOR
BOARD
CON801
I
REGULATOR
BOARD
CON808
H
MAIN
BOARD
(2/2)
CON214
E
0
0
0
1.5
0
24.5
0
1.2
14.8
8.9
22.8
13.2
13.2
22.8
25.6
1.2
0
0
0
0
0
POWER AMP BOARD
+
+
L
R
CON800
4P
SPEAKER JACK
BOARD
R635
120
100PF
10
50V
CE619
200UF
25V
10
50V
100PF
CE711
50V
R711
2.7k
R712
2.7k
R710
10k
Q703
DTC343TS
Q704
DTC343TS
16V
R634
120
U1
POWER AMP
U1
4450
C624
0.1UF
25V
0.1
0.1
25V
25V
U700
NJM7809A
SPEAKER
IMPEDANCE
USE 4Ω
SP801
U700
+9V REGULATOR
Q701 – 704
MUTING
16V
25V
(Page 23)
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