Syntax Olevia LT27HV 27-Inch

[Sky_Davis]

Hello all, first post

Got this TV for free, the lady says that they used it as a PC monitor because of a "hi-pitched tornado" like noise from the speakers when initially turned on. I brought the unit home, powered it up, and the screen just cycles blue, off and on. When it kicks off, the speakers "pop". No "tornado noise" at all at any time either. Also, none of the buttons on the front panel seem to work, even the off button. It just cycles; blue on, "pop", screen off.

I instantly thought "bad caps on PSU, easy peasy". Upon tearing the unit apart, there are no caps that are visibly bad on either board (T-CON or PSU). No bulging vents, no leaks, no rubber squeezing out of the bottoms, etc.

Anyone know of anything to start me in the right direction, other than bad caps on PSU that look good? Hoping to give this to the kids for Christmas in a few weeks. Thanks!

[budm]

Re: Syntax Olevia LT27HV 27-Inch

Please start with this:
https://www.badcaps.net/forum/showthread.php?t=39740

[Sky_Davis]

Re: Syntax Olevia LT27HV 27-Inch

Here they are Bud, if they aren't good enough please let me know and I will try and get some better exposures.

I took the PSU to a local television repair shop today and managed to get him to check the ESR of the caps. He claims none of them read very high, and that the PSU checks out.

Thanks in advance,
Sky

[Sky_Davis]

Re: Syntax Olevia LT27HV 27-Inch

Bump

[budm]

Re: Syntax Olevia LT27HV 27-Inch

https://www.badcaps.net/forum/attach...2&d=1417556251
There are voltage labels for each pin of the connectors, what dc voltage do you get at all those pins when TV is off AND when power switch is activated? Make to sure to list the pin name for each reading.