Samsung LN52A550 with HDMI issues

[BretCraytor]

Re: Samsung LN52A550 with HDMI issues

one sticker has DTVS20FTL111A
BN40-00125A
080627 TBC

The other has:
BN94-01723K B103(PM)(LF)2080707

MX 10 62A550P3FX622A 8109 110491555 0464

[nomoresonys]

Re: Samsung LN52A550 with HDMI issues

ok, did you heat, looks like ic901 with a hairdryer for a couple minutes and try the tv?

[nomoresonys]

Re: Samsung LN52A550 with HDMI issues

also test c909 next to ic901, I do a simple continuity test, usually expect continuity on only one side of mlc cap c909.

[diif]

Re: Samsung LN52A550 with HDMI issues

It's C102 on the back https://www.badcaps.net/forum/showth...ht=BN94-01723K

[tvtimmy]

Re: Samsung LN52A550 with HDMI issues

+100

[nomoresonys]

Re: Samsung LN52A550 with HDMI issues

oh, is that the one that Budm figured out? ok, definitely worth a try.

[nomoresonys]

Re: Samsung LN52A550 with HDMI issues

Budm's fix: https://www.badcaps.net/forum/showpo...&postcount=129

[nomoresonys]

Re: Samsung LN52A550 with HDMI issues

disregard posts #22, 23, it is on bottom side, if Budm's fix dont work then might have to replace IC101 and or NEu AS7 next to it, they sell them in a kit along with the audio chip that isn't usually needed I believe.

[nomoresonys]

Re: Samsung LN52A550 with HDMI issues

can probably test it by heating IC101 for a couple minutes with a hairdryer and try the tv.

[BretCraytor]

Re: Samsung LN52A550 with HDMI issues

What am I looking for with the hairdryer? to bring the symptoms on right at start up? or should symptoms go away?

[nomoresonys]

Re: Samsung LN52A550 with HDMI issues

sometimes if the component is isn't too far gone the heat makes it work for just a bit but it doesn't always work and the component can still be bad of course, it's just a test, in most cases with borderline capacitors the heat brings the esr down just enough to make it work for a bit.

[BretCraytor]

Re: Samsung LN52A550 with HDMI issues

Thanks, for the help! I have ordered replacement caps 47 uF from digikey, and I am trying to steal my wifes blowdryer to take to my workspace. LOL. Will keep you all informed. Unfortunately my 'daytime' job has me working long hours and will prolly be a week before I can get back to it.

[BretCraytor]

Re: Samsung LN52A550 with HDMI issues

Well, thanks for all the help folks! Replaced the caps with tant 47 uF Panasonic from Digikey. Did the trick! Working like a charm and it is off the boat anchor list now! Really appreciate everyones input. Didnt get any better with hair dryer, but it was worth a try. Replacing the caps...nice! Thanks Budm too!

[nomoresonys]

Re: Samsung LN52A550 with HDMI issues

Glad to hear it. can you say which caps you replaced? might help future viewers.

[diif]

Re: Samsung LN52A550 with HDMI issues

Glad to hear it. can you say which caps you replaced? might help future viewers.

It's C102 and C131, did you not read the posted links?

This forum also has an excellent search facility.