Baird X37DTV stobe Backlight issue

[Mikeyboy2007]

hi guys im a newbie on this, had luck of repairing tvs up till my last recent few tvs... this one is a Baird X37DTV (rather sh*t make) but prefer it not going to the Dump like i see so many people do. the problem is when tv is switched on itjust flashes like a strobe, tried changing the invertor to the exact same one and has not fixed the problem, changed a Bulging cap on the poer board, still didnt do the trick > any ideas guys ??

[tom66]

Re: Baird X37DTV stobe Backlight issue

Primary capacitor can often fail on PSU which can cause rapid strobing.
How about pictures of the boards?

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

ok give me 5 minutes i will pop open the tv and take some pictures.

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

hope this helps mate

[tom66]

Re: Baird X37DTV stobe Backlight issue

Can you remove the metal shields on the power supply so we can see underneath them?

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

yeah mate no problem, couple of minutes cheers

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

hope these help. think thats thermal paste that was bonding the metal sheets to the top of PSU components

[tom66]

Re: Baird X37DTV stobe Backlight issue

It looks like the end of that large capacitor has one lead pushed out, which indicates it is failed.

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

can i repair ?

[tom66]

Re: Baird X37DTV stobe Backlight issue

It can be replaced. Can you get a picture facing the leads?

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

by leads do you mean the two metal bits going into the Cap ? sorry if im wrong, bit new to all this, susualy just replace boards but getting too expensive, thanks for all your help mate

[tom66]

Re: Baird X37DTV stobe Backlight issue

Yep, those are the leads.

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

sorry about all the dust, need to get it all cleaned.

[tom66]

Re: Baird X37DTV stobe Backlight issue

Huh. I thought I saw the lead bulging out. I don't know if it is faulty. How often does it flicker? i.e. 10 times a second, one a second, etc...

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

around 5, just goes like a strobe.. can upload a video if any help ?

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

see if this is any help mate, forgot to mention after 10 minutes or so the tv backlight stays on solid.. just flashes like hell till then

http://www.youtube.com/watch?v=H7LhU...ature=youtu.be

[tom66]

Re: Baird X37DTV stobe Backlight issue

OK, in which case, do you have a hairdryer?
Heat up the capacitor we have discussed previously. See if it begins to stop flickering.

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

ok mate will try that tomorrow and get back to you , not got a hairdryer lol

[tom66]

Re: Baird X37DTV stobe Backlight issue

Any kind of heat source works.

[Mikeyboy2007]

Re: Baird X37DTV stobe Backlight issue

ok mate think i have a small heat gun kicking around will have a hunt for it n post results hopefully tonight