Samsung LE32M87BD - stuck in standby - blinking LED

[noledud]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

got a replacement main board and its still the same so looks like i was wrong in the first place, im now thinking it is the PS due to the strange low voltages. The seller has one and i will contact asking if i can exchange. Are you thinking it is the PS also as i don't want to swap and it not be that

[brandrade04]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Hello,

did you find de solution for this problem?? I have a TV with the same behavior!!

Thk!!

[underbird]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Man the solution its very simple ,i solved same problem with my samsung lcd le40r81bxxec.
change capacitor on power board and after write memory dump all willl be fine

[underbird]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Man the solution its very simple ,i solved same problem with my samsung lcd le40r81bxxec.
change capacitor on power board and after write memory 24c256 dump all willl be fine

epp

[brandrade04]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Hello underbird,

I am not a expert, could you explain it with more detail?? Which capacitor?? Write memory dump??

Thank you!!

[senndogg]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Hello guys!
I think i got the solution to this M87BD with this symptoms:
-Constant rebooting.
-Turning on after circa 30min with stripes and faulty image.

Fortunately i have a similar one in my workshop with a faulty T-con, the infamous AS15, but thats another story. I started swapping boards. PSU was ok. i didnt want to remove the mainboard so next was the scaler bn41-00895b.
This was the culprit. TV went on and picture was ok.
My guess was reflowing and reballing the DNIe and the Micronas chips.
But no luck. Anyway thanks to the fellows of the Polish site, i managed to succeed with removing the capacitor C6108_FRC (1uF/50V). I soldered another electrolytic similar one. TV is running flawless.

I hope this helps. Credits go to the polish technician, i just used google translate.

[cecherel]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Hello guys!
I think i got the solution to this M87BD with this symptoms:
-Constant rebooting.
-Turning on after circa 30min with stripes and faulty image.

Fortunately i have a similar one in my workshop with a faulty T-con, the infamous AS15, but thats another story. I started swapping boards. PSU was ok. i didnt want to remove the mainboard so next was the scaler bn41-00895b.
This was the culprit. TV went on and picture was ok.
My guess was reflowing and reballing the DNIe and the Micronas chips.
But no luck. Anyway thanks to the fellows of the Polish site, i managed to succeed with removing the capacitor C6108_FRC (1uF/50V). I soldered another electrolytic similar one. TV is running flawless.

I hope this helps. Credits go to the polish technician, i just used google translate.

I have almost the same simptoms with this model (continous loop, only starts with heat blower on the scaler board, and after a while it displays some horizontal lines) i replaced the capacitor today and i hope it will work, i'm excited, i was looking for a solution for about 6 months.

I'll get back with an answer.

[cecherel]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

It works !!! Thank you !!! Thanks also to the polish guy!

[budm]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Thanks for the tips, did you measure the cap to see what kind of failure it has?

[cecherel]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

I've measured the cap and it had 0.8 uF. I just tried heating the bad cap and when heated it goes at 1uF.

[tom66]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Probably more of an ESR thing than anything. Could cause a voltage regulator to become unstable.

[zipak]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Thanks for info about 1uF cap. I changed this cap to new one and TV work again. Than I measured the Capacity and ESR of the original cap and measurement shows increased ESR value than expected. Once again thank for tip.

Bretislav

[johnkte]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Hello,
have the same problem in a LE32M86BD. I was ready to try reflow cpu, but saw this post. Changed the 1uF capacitor and it simple worked. Capacitor seems to have very large ESR. Thank you guys !!!
P.S. Respect to polish guy !!

[ammarben]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Thanks for the tips

[steviewonder]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

1000uf,10v under the screening can is faulty. a warm-up with a hairdrier should give results.there's two of them,but generally only the lower one of the two dries out.Located under the screening tin on the signals pcb.

[steviewonder]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

oops, this only applies to the R87BD...but same symptoms

[brandrade04]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

Hello all,

some days ago I visited this post and replaced the C6108_FRC (1uF/50V), that solved my problem too!!

Thanks!!!

[Joun]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

This is what internet is for..
Replace that cap(it had ESR about 500 Ohms! ) and TV is working for some hours now..

Thank you!

[YeOldeGinge]

Re: Samsung LE32M87BD - stuck in standby - blinking LED

I had something similar with one of my TV's I think it may be a short on one of the ccfl tubes (Back light) or a shorted back light led(Back light) depending on the type of back light it has.

Hope this helps

YeOldeGinge :P