VIDEOCON INDUSTRIES LTD.
V59-CTYPE
The information in the specification is subject to change without notice
20
. BOARD SERVICE MANUAL
1). Power supply Trouble (LED no bright)
2). Power supply Trouble (LED is bright)
Check LED & line
Check 5VSTB
OK
Check 12VSTB
NG
Check
N507
&
peripheral circuit
OK
NG
OK
Check +B (380V)
Repair the circuit
Check F701, RT701,D701
∽
D704
Or N701 &
peripheral
Circuit
NG
NG
Check
N709
，
N703 & peripheral circuit
supply
.
Check X701 & Power Input
circuit
OK
OK
OK
Check the power
supply
circuit
(See:
Power supply Trouble (LED no bright)
)
NG
NG
Check 5VSTB
Check Q504 for 5V
Check N506 for 1.8V to DDR
Check N504 & 1.25VSTB Pins of N401
Check N507 & 3.3VSTB Pins of N401
Check N110 for 1.25VSTB
Check N121 for 3.3VSTB
Check
Q504 for 5V& 5V
peripheral
Circuit
Check N506 for +1.8V & 1.8V
circuit
of N401
NG
See:
Display Trouble
OK
Summary of Contents for BT 131
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Page 9: ...9 3 Chassis block diagram ...
Page 10: ...10 b Actual Chassis view V59C ...
