Samsung LE32M87BD - stuck in standby - blinking LED

[anotherdude]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

still no change so its either wait for a cheep board or bart out the TV

did you remove the shield, and apply flux?

usually takes me a good 20-30 minutes to remove those shields as there soldered on pretty well

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

yeah removed shield

then covered all board apart from where the shield sits

applied flux allowing some to run behind the chips

then was in over ( pre heated ) for 15 min

strange this was tho i put it back in while it was still very warm - but it didnt come on it did the same thing

i have now put shield back on and tried again still the same cycle

now the hair dryer took longer but it seemed to come on again when i pointed it lower ( just below the shield )

[tom66]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Maybe it's not the processor - where are you pointing heat at?

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

the metal looking caps can they fail ?

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

its hard to tell as alot of things get heated up at once but just below the shield

[tom66]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Yes, they are electrolytics and can fail in the same way as regular electrolytics on a power board (nothing different about them except the case.)

[anotherdude]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Maybe it's not the processor - where are you pointing heat at?

there are multiple caps surrounding it, If you remember i asked you about smd caps a while ago that i didn't know what the part numbers ment.

could it be those caps?

[anotherdude]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

yeah removed shield

then covered all board apart from where the shield sits

applied flux allowing some to run behind the chips

then was in over ( pre heated ) for 15 min

strange this was tho i put it back in while it was still very warm - but it didnt come on it did the same thing

i have now put shield back on and tried again still the same cycle

now the hair dryer took longer but it seemed to come on again when i pointed it lower ( just below the shield )

when I last done it i let the flux run everywhere in that area, but my fault was not as bad as this as it would restart after 2-3 hours of use, whereas yours is instant.

i've had one previously too that couldn't be repaired, still sitting in my cupboard, probably a new board is needed

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

can you circle for me in my pic ?

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

when i get it going it then stays on and the heat shield gets very hot as the processor is running

but if i turn it off i cant get it back on again so something is cooling down - ( but the processor makes its own heat and in fact gets hotter )

it just went off again and i tried heating towards the bottom right just to the left of the turner and it seemed to come on quicker

[anotherdude]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

in this general area,

heres the thread that i couldn't repair

https://www.badcaps.net/forum/showth...t=26803&page=2

and the one i did repair https://www.badcaps.net/forum/showthread.php?t=34252

all BD models

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

yeah in that general area - nothing to lose baking again but this time let more of the board get the heat, i dont think the prob is under the shield has something to do around the shield as they are the bits that cool down again.

If i found a board for £15 i would get it but iv seen that some have gone for like £50 and thats way too much

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

went off again and tried heating the caps near the power connector - no change

then when i heated the caps around the turner it came on so im slowly narrowing it down

so tom66 the electrolytics can be replaced ? can i just get them from maplin ?

[tom66]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

You can buy those capacitors from CPC with free next-day delivery on ANY order... Maplin caps are terrible!! Take a pic or highlight each suspect cap.

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

when i apply heat in this general area the tv works until they cool - so is there anything there that stands out that i can replace - or am i wasting my time

[tom66]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Try narrowing heat down to just those 1000uF 10V caps - check voltage across them while working and while faulty.

[vinceroger69]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

tom with these type of caps can they be replaced with ordinary leaded ones room permitting.

[tom66]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Yes.

[cliff_hootarski]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

You may want to check the back of the board as well.

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

ok re bake still the same not much i can do apart from change a few caps only a few £ gamble so going to give that a try

my question is some read 100 16J - so i take it they are 100uf and 16v

but others says 100 16F so are they the same just a different size ?