Vestel 17PW20 intermittent backlight

[tom66]

Re: Vestel 17PW20 intermittent backlight

Should not R817-R819 give 620kOhm each, even when measured in circuit (and not overload on my multimeter)?

Yes, they need to be around that. Can't quite remember the exact value. These resistors seem to go occasionally, too.

[emardee]

Re: Vestel 17PW20 intermittent backlight

Shikuru,

I was wondering if you ever fixed this problem? What was the cause? Was it the PSU or the inverter in the end?

I have a Finlux 32FLD760 with similar-ish problems (uses the same 17PW20v1 PSU).

I was just coming to the conclusion that I should probably get a replacement refurbished 17PW20v1 board from ebay, but reading your post made me concerned that it was possibly my inverter at fault instead, and that I could find it still didn't work even with a replacement perfect PSU in place.

Happy to hear your conclusions.

Mike

[shadow80]

Re: Vestel 17PW20 intermittent backlight

I know is a old tread but I want to share with everybody my experience with this PSU. https://www.youtube.com/watch?v=S49iIgI-6ac