Hitachi L32A102, Руководство по обслуживанию

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3 9
SYMPTOM: NO CVBS/SVIDEO ABNORMAL
SYMPTOM: NO HDMI ABNORMAL
No CVBS/SVIDEO Picture
Yes
Replace Main PCB
Replace connect wire
No
Check if SVIDEO/CVBS
signal of U22 pin36,37,
42,40 is normal **
No HDMI
Replace connection
Yes
Yes
No
Check if signal of
P4 is normal **
Replace U12
No
Check if voltage of
U12 pin 8 is 4.75V
Replace U22
Yes
No
Replace Main PCB
Check if HDMI signal of
U22 pin is normal **
* Refer to DC voltages page
** Refer to Waveforms page