LG 60PV450-UA.AUSLLHR, repeat YSUS failure

[Truncatedhose]

Re: LG 60PV450-UA.AUSLLHR, repeat YSUS failure

Remove the Ybuffer and retest.

Okay, so remove both the upper and lower Y buffer boards and retest?

[Truncatedhose]

Re: LG 60PV450-UA.AUSLLHR, repeat YSUS failure

Remove the Ybuffer and retest.

Okay, I was reading those test points incorrectly. Here is the results when the buffer was connected:

VSC: 15v
VY: -180v
VZB: 0.00v or occasionally 110v, but only for a moment, then stays at zero. Very strange.

With buffer removed:

VSC: 0v
VY: -180v
VZB: starts around 40v or so and drops quickly to 14v

[ReeceyBurger123]

Re: LG 60PV450-UA.AUSLLHR, repeat YSUS failure

You have a short on one if your susboards again then. You need to test the Igbts in the erc track mainly.

[Truncatedhose]

Re: LG 60PV450-UA.AUSLLHR, repeat YSUS failure

You have a short on one if your susboards again then. You need to test the Igbts in the erc track mainly.

Apologies for my ignorance, but what do you mean by that? Can you explain how to do that? I appreciate your assistance and kindness tremendously!

[andariego]

Re: LG 60PV450-UA.AUSLLHR, repeat YSUS failure

I have the same LG TV model, there is no audio only video, after reviewing the Y board, I noticed that the resistors on the SMD surface are burned, also the transistors FGPF4633, someone that could tell me the values of these resistors circulated in red.

[andariego]

Re: LG 60PV450-UA.AUSLLHR, repeat YSUS failure

I have the same LG TV model, there is no audio only video, after reviewing the Y board, I noticed that the resistors on the SMD surface are burned, also the transistors FGPF4633, someone that could tell me the values of these resistors circulated in red.

no one? Thanks

[slidewire]

Re: LG 60PV450-UA.AUSLLHR, repeat YSUS failure

They're 10 OHMS.