Please help I'm loosing my mind 65" tv

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

Also the board in question has a #1 in the middle then there is two #2 two #4 and one #3

[CapLeaker]

Re: Please help I'm loosing my mind 65" tv

Yes.

[CapLeaker]

Re: Please help I'm loosing my mind 65" tv

Did you see if actually all ccfl lamps came on for 2 seconds full brightness, or are there some staying off or only one side glowing dim?

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

When powering on the set yes the white screen comes on nice and bright with the olevia logo the shuts off

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

On that side I can only get to to registrar and all the boards are the same so dose that mean that only the other side is bad. Also it seems like the other boards on the opposite side read different but all three in that bank are all the same. I know the boards are different because there are less chips. Just thinking lol thanks agin

[Diah]

Re: Please help I'm loosing my mind 65" tv

if you still have sound and picture can see with torch light, i would start take the set in parts and start from the the bulbs, each point had brown effect or heating mark would test them first with re soldering.

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

Can you tell me why sum of the transformers and chips on the boards register different ? For the most part the two that are not brown are the same with my reading but then there are sum that I can't get a reading on. I'm so confused the easiest

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

The easiest way for me to say it is there is 3 boards and if I check oms on the three there is the one board that is way higher then the other 2 but the same oms on others parts

[CapLeaker]

Re: Please help I'm loosing my mind 65" tv

I doubt that all transformers are bad on the 3 boards on the other side. Just compare one transformer to all others on one side, then the same thing on the other side. Usually it is the secondary (the high voltage side) that fails.

I understand that this TV has actually 2 PSU's? Is the 24V that feeds those boards is good from both PSU's? Both PSUs turn on fully?

What do you get with the DMM in OHM mode when you check the secondary of each inverter transformer? Try the 1st pin on the secondary with pin 4. Do that on every board. Post them all here so I can have a look.

[Danvagos]

Re: Please help I'm loosing my mind 65" tv


These to pins show nothing

[Danvagos]

Re: Please help I'm loosing my mind 65" tv


Now on the 2 pin and the 4 I get 7.33 +-

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

If I hold the board to the light the # 1 and three don't even connect to any thing lol

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

3 of them are at 7.33 and one is at 7.15 and one is at 7.45

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

And the other two boards are at 7.33+-.01 on all of them

[CapLeaker]

Re: Please help I'm loosing my mind 65" tv

Not every transformer pin out is the same. Sometimes we either have to figure it out or look up the spec sheet of the transformer to get the pin out. I was just at it to look the transformer part number up, but had no luck.

What do you read on the pins inside the CCFL connector?

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

Three at 7.33 one at 7.15 and one at 7.45

[CapLeaker]

Re: Please help I'm loosing my mind 65" tv

O.k. that makes 5. I thought there are 6 transformers on one board? So you got 3 more boards to go (the slaves).

On what you say in your last post, I would say that 7.33 is the middle there in order to take the 3% from for example.

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

Ok at the cclf connector I'm getting 7.28 to 7.33 on 17 out of the 18 on this one side of the tv anyway and the one is at 7.08 and that one is once again on the board that's in question with the little brown spot

[Danvagos]

Re: Please help I'm loosing my mind 65" tv

this is the one near the brown spot

[CapLeaker]

Re: Please help I'm loosing my mind 65" tv

the transformer measuring 7.08 is the problem