MHC-GTX88, MHC-GTX88BP, SS-GTX88, SS-RSX88, SS-WG88A, SS-WG88B - Sony Audio Service Manual (repair manual). Page 4

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4
SS-GTX88/RSX88/WG88A/WG88B
1-2. SCHEMATIC  DIAGRAM (SS-WG88A)

Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted.  (p: pF) 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in 
Ω
 and 
1
/
4 
W or less unless otherwise specified.
•
C
: panel designation.
•
A
: B+ Line.
• Voltages are dc with respect to ground in service mode.
no mark : POWER ON
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production toler-
ances.
JR1400
C1400
R1406
R1405
D1400
Q1400
S1400
CN1400
0
JR1401
0
JR1403
0
10
50V
1k
1k
R1408
180k
R1400
180k
RV1400
50k
R1407
2.2k
SELU5420E
(GREEN)
2SC2712
LED DRIVE
4P
SUBWOOFER
ON/OFF
SUBWOOFER
ON/OFF
SUBWOOFER
LEVEL
HCD-GTX88

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