LG 42PC1D plasma - clicking repeatedly

[fzabkar]

Re: LG 42PC1D plasma - clicking repeatedly

I suspect that one optocoupler performs an AC-Detect function while the other senses the PFC supply voltage.

I have uploaded my reverse engineered diagram of the PFC voltage detection circuit in an LG 42PJ350 plasma TV here:

https://www.badcaps.net/forum/showpo...05&postcount=3

Perhaps it is a similar circuit.

[pecrie]

Re: LG 42PC1D plasma - clicking repeatedly

Hi everyone ,

I'm also having a clicking power supply on a LG 42PC1R tv.
Do some of you have a schematic of the power supply 68709M0031B ?

Also known as 68719PT299A - LGE number 68712PT299

Thank you