Samsung LE37R87BD

[viduka]

Hi.
Can anyone tell me if the attached pics are more likely to be a Panel fault or T-Con issue.
Tv makes a bad static sound when powered on and displays images attached. It seems to power off and then on again repeatedly. If its left for approx 20 mins it sorts its self out and works fine.
The fact it works after 20 mins gives me some hope its not the panel.

[viduka]

Re: Samsung LE37R87BD

Anyone able to offer any help ?

[CapLeaker]

Re: Samsung LE37R87BD

What happens if you unplug one ribbon cable from the LCD to the t-con and then vice versa the other one, then unplug both?

[Hamie]

Re: Samsung LE37R87BD

You need to unscrew the back of the tv so we can see the boards.

The powering off and on is probably bad capacitors this model is prone to bad caps.
This model I believe also uses a tcon with the the extremely unreliable as15-f chip on the tcon. A faulty as15-f chip can cause all sorts of image problems but you'll need to check voltages.

[Maklaud]

Re: Samsung LE37R87BD

Do you have numbers? Matrix, T-con, Main.

[ReeceyBurger123]

Re: Samsung LE37R87BD

Epprom failure I would say very common on them boards in them tvs. Also probably bad caps take the back off.

[dokymobil]

Re: Samsung LE37R87BD

Hi.
Can anyone tell me if the attached pics are more likely to be a Panel fault or T-Con issue.
Tv makes a bad static sound when powered on and displays images attached. It seems to power off and then on again repeatedly. If its left for approx 20 mins it sorts its self out and works fine.
The fact it works after 20 mins gives me some hope its not the panel.

hi. i have a same problem when i switched on my tv. i try to heat up the main board , and the problem solved until when i just put my tv to standby. after 1-2 hour , the tv is switched on itself and starting the noises and flickering screen again. im ordered a new mainboar from ebay .im waiting for the panel coming.
so , i think u have a same problem. u have to change the main board. if u inspecting the board , u can see it is already bended....is not really good for the overheated components under the shield. but , it is just my opinion. (sorry about my english is not to good) i hope this info was helpful. tomorrow i will get my new mainboard , and i will refer about that. -peace-

[dskall]

Re: Samsung LE37R87BD

Epprom failure I would say very common on them boards in them tvs. Also probably bad caps take the back off.

Doesn't eeprom load at start up? Would it load 20 min later after warm if it had thermal issue? Not challenging just trying to learn.

[ReeceyBurger123]

Re: Samsung LE37R87BD

Doesn't eeprom load at start up? Would it load 20 min later after warm if it had thermal issue? Not challenging just trying to learn.

Its a bit weird on these boards it can cause serveral symptoms when the EPPROM corrupts. Also there are some 1000uf caps under the heatsink that can cause similar to this thread.

[dskall]

Re: Samsung LE37R87BD

Need a picture of mainboard. Is this the board with the AS7 tant caps that fail and cause cycling?

[ReeceyBurger123]

Re: Samsung LE37R87BD

Not these boards no that is newer ones.

[dokymobil]

Re: Samsung LE37R87BD

Hello everybody ! Im just madke a short video from by tv. i changed the mainboard but i have a diferent problem with....
the tv is LE37R87 but the mainboard what they send to me is for LE32R87 . and is not working. bad picture and noise is gone , but the new problem is on the youtube video. if someone have any idea , is very helpful . i was thinking for changing the eprom , but im not sure is good idea or not . the video link is : https://www.youtube.com/watch?v=NBinmSqjByg