Philips 23PFL5522D/12 red light and won't turn on

[slklite]

Hello guys I got this Philips LCD TV

From the day we got it (not new), it worked but sometimes won't turn on, or turns off suddenly by itself.

Lately it didn't even turn on ...

I decided to open it and try to find a solution to the problem.

I found a few capacitors that had a big head, and I replaced them with higher capacities or same (always same voltage) depending on what I had on hand.

The tv worked like a charm for a few hours.

Then, my sister tried to turn it on, but same problem as before, red light and won't turn on. I opened it, and all the capacitors I changed seemed to be ok ... I can hear a hissing noise coming from transformers (I think). But I read somewhere that they tend to make noise, when they don't have the right voltage or frequency ... Anyway, I could find anything wrong (I'm not a professional, but I try to manage...)

THen I decided to try the improbable, by using a hair dryer on the power board (DAC-12M058 AF), and it worked !!!

I guess I'll have to use it every time, the tv cools down.

So I'm asking why it does work with the hair dryer, and not without. What did I miss ? What can I check and how (I have a multimeter) ?

If you have any questions regarding my case, please, I'm at your disposal.

Thank you guys.

Best regards.

[ReeceyBurger123]

Re: Philips 23PFL5522D/12 red light and won't turn on

You probably have more bad caps that havent blown their tops but have failed internally. I would suggest that your replace EVERY capacitor on the psu including the small ones they are probably the cause of the issue and you should be sorted

[slklite]

Re: Philips 23PFL5522D/12 red light and won't turn on

All right, thank you.

I'll try that and let you know.

[ReeceyBurger123]

Re: Philips 23PFL5522D/12 red light and won't turn on

Ok no problem let us know how its goes.