S95E Sony
44
No Backlight
Check VDDA,ENA
VDDA=4.75~5.25V;ENA>3V
OK
NG
Check On/Off loop Circuit
Check OVP(pin2) normally
Check OVP loop
NG
End Striking function debug
Preset at 2V to SST(pin4) of IC801 and
Connect CTIMR(Pin1) to GND
Check REF (pin7), RT (pin17), CT(pin18),NDRV_D(pin11),
PDRV C(pin12),PDRV A(pin19),NDRV B(pin20) of IC801
Check full bridge power conversion
circuit and Transformer output circuit
OK
NG
Change IC801
OK
OK
Check FB(pin9) of IC801 and Protection loop
debug and connect b pin of Q802,Q803 to GND
Judge FB=0
OK
Check FB circuit form lamp’s return
to FB(pin9) of IC801
NG
Normal condition Check b pin
voltage of Q802,Q803<0V
OK
End FB circuit and
Protection loop
Check Protection
circuit, Components
short, open or fail
NG
OK
Содержание S95E
Страница 1: ...S95E Sony 1 Service Manual TFT LCD COLOR COMPUTER DISPLAY SONY ...
Страница 3: ...S95E Sony 3 1 Precaution Warning on power connections Installation ...
Страница 4: ...S95E Sony 4 Handing the LCD screen Maintenance Transportation ...
Страница 10: ...S95E Sony 10 Adjustment steps of each menu ...
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Страница 26: ...S95E Sony 26 The panel is disassembled absolutely 4 2 WIRING DIAGRAM ...
Страница 27: ...S95E Sony 27 4 3 Monitor Exploded View ...
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Страница 63: ...S95E Sony 63 8 Schematic ...
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