No Standby voltage 26" Sabre LCT260BKA

[selldoor]

Re: No Standby voltage 26" Sabre LCT260BKA

You know, there is no point in fixing this, since you cut apart/destroyed the heatsinks!

I wondered about that but im pretty sure that if we can get it working we can come up with a cunning plan to replace the heatsinks

[tom66]

Re: No Standby voltage 26" Sabre LCT260BKA

You could weld them back together. If you were really, really careful.

[ben7]

Re: No Standby voltage 26" Sabre LCT260BKA

I wondered about that but im pretty sure that if we can get it working we can come up with a cunning plan to replace the heatsinks

Hm, lol, that is true!

I've built my own heatsinks before out of big sheets of aluminum

To add to the topic, yes, those were crap caps you got.

[aris21067]

Re: No Standby voltage 26" Sabre LCT260BKA

I think im going to shelf this tv for awhile and see if my finacial situation changes, as Im not able to invest much into this tv. I was checking online about this tv and seems that every place i checked says this brand and model is pure junk. It was given to me and I was just going to try to fix it to use it as a pc monitor. I want to thank each of you for all your wonderful help and advice.

[smattin1]

Re: No Standby voltage 26" Sabre LCT260BKA

Did you replace the start-up caps in the primary side for the standby 5V power supply?

hey, I'm new to this, but have a similar problem. When I plug in my TV, the light doesn't turn on. In looking at the power supply, I replaced all of the obviously blown capacitors on the right hand side, as well as, after reading this post, the "start up" ones indicated, one of small ones which was apparently blew slightly out of the side.

after replacing these, however, my problem persists. What should I do next?

Thanks!

[smattin1]

Re: No Standby voltage 26" Sabre LCT260BKA

hey, I'm new to this, but have a similar problem. When I plug in my TV, the light doesn't turn on. In looking at the power supply, I replaced all of the obviously blown capacitors on the right hand side, as well as, after reading this post, the "start up" ones indicated, one of small ones which was apparently blew slightly out of the side.

after replacing these, however, my problem persists. What should I do next?

Thanks!

sorry, what i meant to say is the light turns on, but the TV doesn't turn on with the power button

[budm]

Re: No Standby voltage 26" Sabre LCT260BKA

You have the same exact and exact same boards used in your TV?
It is best to upload good clear pictures of YOUR boards and the whole backside of the TV so we can see all the boards.

[smattin1]

Re: No Standby voltage 26" Sabre LCT260BKA

sure thing. different brand of TV (GFM) but identical power board as far as I can tell. I've attached pics

[smattin1]

Re: No Standby voltage 26" Sabre LCT260BKA

In looking at this thread, it seems to be 4 years old, is it even worth trying to repair this tv, which is, itself, almost 9 years old? I like it because it's 1080p and I've had no problems with dead pixels or anything, and don't really want to buy a new TV when my fiancee has a much nicer (and larger) one that I will be able to use in about a year (and we don't need 2 TV's)

[budm]

Re: No Standby voltage 26" Sabre LCT260BKA

"sorry, what i meant to say is the light turns on, but the TV doesn't turn on with the power button" So after replacing the startup cap in the standby power supply section now you do have 5VSB?
Which one of these is your power supply board? You need to look at the barcode sticker as shown in SJ site.
http://www.shopjimmy.com/catalogsear...ult/?q=MLT666B
Unless you want to learn about repairing, the 26" off brand is not really worth anything if it will need lots of parts to get it going.
BTW, did you also replace the caps under the heatsink? It is bad design to put caps inside the hot heatsink.

[smattin1]

Re: No Standby voltage 26" Sabre LCT260BKA

I have currently replaced the circled caps in red, including the ones under the heat sink (which i took off and put back on) with identical or higher spec (the blue one was the only one in which i didn't replace it with the exact same. same uf, but higher voltage, which research led to believe was OK) . I am not sure how to test if i have "5vsb" - but I do have a multimeter, so if you can describe how to test I will follow instruction. When i connect everything together, I get power to the led "on light" (red, standby light. when the tv used to work, it would turn on and the light would go green)

re: the board is a megmeet MLT666 rev. 2.5.

it shares the same code as below

http://www.shopjimmy.com/megmeet-mlt...pply-unit.htm#

but the pictured one has rev. 2.8.

I actually am interested in learning to repair, but if it is not even close to cost effective /extremely time consuming i can figure something else out. However, I am enjoying the learning experience, so i'm willing to sink another 20$ and/or 3-4 hours into it.

[budm]

Re: No Standby voltage 26" Sabre LCT260BKA

If you look at the bottom side of the connectors you will see the 5VSB pin, so check that against GND pin.
Pictures provided by shopjimmy.

[smattin1]

Re: No Standby voltage 26" Sabre LCT260BKA

Hi, I want to thank you for your help, i learned a lot. Unfortunately, life got in the way and has also given me a new TV, and so I will be abandoning this project. Maybe next time!