Samsung LE32A336J1D - still blinking/going to standby

[johnlewisdesign]

Hi guys I failed heavily at a post a few weeks ago - sorry about that - (MOD please remove that old thread pls!) so I'm trying again with the correct info at hand rather than guesswork!

Tv is a Samsung LE32A336J1D, 32in LCD bought in Spain.
Power board sticker reads BN44-00192B - Rev 1.1
All 10v caps on power board recently replaced with 25v (just 2 caps)

Smaller files - low resolution
Main board
Back
Cracked glue?
Power board showing number BN44-00192B - bottom right: ticks show recently replaced 10v->25v caps
More manky glue

Huge files - high resolution
Main board
Back
Cracked glue?
Power board showing number BN44-00192B - bottom right: ticks show recently replaced 10v->25v caps
More manky glue

The TV is OK now for the first few minutes, then I hear a feint low whining sound and the tv picture blinks in and out repeatedly whilst the sound continues, before finally going into standby. It is then almost imposisble to wake up. It seems to be struggling to stay awake the longer it's on for.

I have performed a factory reset via remote, but this is all.

What do you think I should be looking out for? I understand there's a bridging of some pins I can try, eeprom? Anyone done this TV before?

If not, what am I looking at next do you think? Did I miss something (Another cap was a previous suggestion on my failed post)? There's no 10v caps left I can see now.

Thanks guys.

John

[johnlewisdesign]

Re: Samsung LE32A336J1D - still blinking/going to standby

Having dropped to page 3 with no responses - and having found nothing on bump policy, consider this bumped. Please help a guy out, I just want to learn! Thank you

[selldoor]

Re: Samsung LE32A336J1D - still blinking/going to standby

Arrggh - just did it again - clicked on the old thread to remind me the original story and killed my aging laptop.

Here is the story:
I have a 32in Samsung Plasma that had 2 bad caps. I've replaced the 10v for 25v x 2, but the problem persisted. I checked my soldering which is OK - then did a factory reset, which has made it a lot better - but 15min in, the screen starts blinking out (still with sound) then eventually it will switch to standby mode.

Before I did the reset, auto tuning for channels made it go into standby. It wouldn't go all the way without shutting off. Now I can get 15min into a programme after setup, so I must be getting somewhere. I can hear some squealing during the glitching though which is a bit worrying.

So my question is, what next? EEPROM flush? Also is a factory reset via remote lesser than an EEPROM reset or is it the same thing? Anything else likely to hamper me?

I have a multimeter if there's anything I need to test. First go you see...

Ther is no pint in suggesting anything else until you remove all the glue. It has become conductive in places and will get worse.

It is not easy you have to work away at it slowly ,obviuosly without damaging the board/components - some people have reported it soften (only slightly) with repeated coats of IPA

[johnlewisdesign]

Re: Samsung LE32A336J1D - still blinking/going to standby

It is not easy you have to work away at it slowly, obviously without damaging the board/components - some people have reported it soften (only slightly) with repeated coats of IPA

Sorry about the huge thread - how do I get someone to delete it, report it? Was reluctant to use that as it says it's not for that purpose.

That is fine, I will remove the glue next then and report back. I take it when the glue has 'gone conductive', it can be identified by the discolouration - like near the main capacitor in my photos? Like I say it's a learning process for me so I want to arm myself with as many facts as poss.

Thank you Selldoor, I will catch you soon

[selldoor]

Re: Samsung LE32A336J1D - still blinking/going to standby

When its gone conductive it will be brown but it is also corrosive so it corrodes first then
becomes conductive it really is awful stuff - you cant always see the brown if it under a blob of it. Budm has a whole set of pictures of it.