Hi guys, I got this Philips LCD TV here. I don't work on many LCDs, mostly LED so not had a lot of experience with them.
I actually repaired this about 18 months ago - it had a bad AS15, which I replaced and it has been fine until recently
Now it powers up, after several seconds the PSU makes a fizzing warbling noise (hard to describe) and I can see the CCFLs flkickering, then after some seconds it shuts down. It powers then back up again and the cycle repeats.
The voltages to the main board are OK (3.3V, 12V, -12V). All the caps are visibly OK.
Obviously there is some problem with the inverter or the CCFL lamp(s) but can I determine which without a spare inverter or lamp?
The PSU is a Delta DPS-279BP
best regards
I actually repaired this about 18 months ago - it had a bad AS15, which I replaced and it has been fine until recently
Now it powers up, after several seconds the PSU makes a fizzing warbling noise (hard to describe) and I can see the CCFLs flkickering, then after some seconds it shuts down. It powers then back up again and the cycle repeats.
The voltages to the main board are OK (3.3V, 12V, -12V). All the caps are visibly OK.
Obviously there is some problem with the inverter or the CCFL lamp(s) but can I determine which without a spare inverter or lamp?
The PSU is a Delta DPS-279BP
best regards
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