Phillips 42PFL5432D/37 problems

[Jesnjonbond]

I have a 42" Phillips that is constantly blinking on then off. The green power button stays in though. I've removed the back and everything on the board looks to be normal.

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

Button stays ***ON.

[tom66]

Re: Phillips 42PFL5432D/37 problems

The first step is to share us some pictures of the internals of the unit.

The second step is to tell us how many times the light blinks. This indicates a specific fault. The light will blink N times, then pause, then blink N times, and it will repeat this indefinitely.

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

Light does not blink it stays on and solid until I hit the power button

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

Power supply board

[tom66]

Re: Phillips 42PFL5432D/37 problems

You have at least three bad capacitors on the power supply.
This is a very common fault with this power supply.

The ones which have a bulge in the vent are definitely bad, but the other lone one at the top of the image should also be replaced.

What is written on each of these capacitors?

***WHATEVER YOU DO, do NOT use RadioShack or Fry's capacitors. They are not suitable for power supplies.***

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

All three are CapXon 1500uF35V and the one on the left is 2200uF16V

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

Is this bad as well?

[tom66]

Re: Phillips 42PFL5432D/37 problems

That part is fine.

If you want to confirm that it is those capacitors you may heat them with a hairdryer. Often, this will give them a little extra life. Demonstration with a Samsung I repaired:
https://www.youtube.com/watch?v=Ggn_ggaPvc4&t=2m35s

CapXon rears its head again -- I have replaced more CapXon than any other capacitor.

Replacement parts:
http://www.digikey.com/product-detai...2409-ND/613770 (x3)
http://www.digikey.com/product-detai...0257-ND/266266 (x1)
+$3 shipping

Check the diameter is correct.

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

Ok I've replaced the bad capacitors and the tv will now come on but it is all black and white. Have I messed something up or did I forget something?
Thank you for your help so far.

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

Any ideas? Anyone!

[gilly1984]

Re: Phillips 42PFL5432D/37 problems

Picture fine but just in black and white?

Turned colour up in settings?

[MisterD]

Re: Phillips 42PFL5432D/37 problems

As Gilly said: Use Menu, go into settings and adjust the Color Level. Have you done this yet? Results?

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

Yes I have done this with no result. The picture is slightly checkerboard. It's only noticeable when you get close.

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

Could I have messed up something on the power board to cause this?

[Mark369]

Re: Phillips 42PFL5432D/37 problems

maybe you need to reseat the cables

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

What do you mean?

[tom66]

Re: Phillips 42PFL5432D/37 problems

The checkerboard patterning indicates that colour is not being demodulated from composite video correctly.
Check HDMI, component, other modes.

[Jesnjonbond]

Re: Phillips 42PFL5432D/37 problems

I am an idiot thank you guys very much

[tom66]

Re: Phillips 42PFL5432D/37 problems

Care to share more?