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philips 42pfl7403d-10

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call me al:
This set wont come on white light keeps flashing, any help appreciated thanks

downunder:

Resolder transformer 5104 on the power supply, even if the connections look ok.
If the 3.3V rail from the power supply is low and pulsing, check R5 - 120 ohm 1W - for open circuit.

call me al:
Thanks for info cant find R5 is it on psu board

downunder:
Unsure of location of R5, but as the 3.3V is generated on the power supply, I'd expect it to be there. Looked on the underside?

thoma:
INFO:
If TV is switched "on", there is no backlight and no sound.

CURE:
Check the following items:
- On the PSU, check the voltages on connector 1M95 and 1M99. See figure 1.
- Check for a short-circuit of diodes i.e. D6105 (order code 482213031607 DIO RGP10D-E3/54).
- Check resistors 3135 and 3136 for open circuit.
- Check for bad solder joints on transformer 5104: resolder if necessary

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