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Philips LCD 42 inch TV (42PFL7403D/10) dead

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pacmyc:
I dont seem to get tpp much help / feeback from you guys :s

However, I have noticed that the TV works great in the mornings, but never in the evenings.
I have all the time thought that this was related to the colder temperature in the mordning but
I dont know. I have tried spraying PSU with freeze-spray but no progress.

Could there be any other cause than the surrounding temperature to why the TV works great only in the mornings?? :sign0085:

astracat:
hi
update its software sounds like mercury in lamps taking longer than software time to fire up some models had its start up time increased to compensate for this problem,get from philips consumer support website and put on usb stick
regards
astracat

downunder:
Try a reflow of pins on transformer 5104 even if they may appear fine.

pacmyc:

--- Quote from: astracat on August 09, 2012,17:24:34 ---hi
update its software sounds like mercury in lamps taking longer than software time to fire up some models had its start up time increased to compensate for this problem,get from philips consumer support website and put on usb stick
regards
astracat

--- End quote ---

SW is the most up-to-date.
Version: Q591E-0.103.0.0
Release notes: Release for TV520 R2: Q591E-0.103.0.0
Generation date: 12/05/2011 20:58:01

pacmyc:
UPDATE:
PSU starts up just fine if I just disconnect the LED panel control from the SSB. (connector 1M20 on picture).
Stable 3.4 V (standby 3V3) and stable 12V. After about 10 seconds PSU shuts down the 12 V but continoes to deliver standby 3.4 V.If I slowly connect the LED panel control while the PSU is still on then the TV will start and everything works! If I turn it off, then I wil have to disconnect the led panel control again to turn it back on.
On the led panel control board I notice that there seems to be a short between pin 2 and 9.

TV behaves the same with and without the keyboard cable connected to the led panel control.

Spare part number of this led panel control is 3104 313 62792 .

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