Re: Vestel 17PW19-4 (Intermittent backlight)
Please see attached pictures for the location of the C901 cap.
Are you talking about the cuboid blue one in the second picture?...
kad
New Member
Last Activity: 03-23-2020, 02:38 AM
Joined: 03-20-2012
Location: Manchester
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Re: Vestel 17PW19-4 (Intermittent backlight)
hmm! I am confused now.
Can more guys confirm this cap value please? blue ceramic drop cap with code 47K?
It's C901 on the Vestel 17PW19-4. Right next to the heat sink.Leave a comment:
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Re: Vestel 17PW19-4 (Intermittent backlight)
here is the cap. It looks fine (no cracks,...etc)
Are you sure it's 4.7nF and not 47nF then?...Leave a comment:
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Re: Vestel 17PW19-4 (Intermittent backlight)
I took the blue cap off. It says 47K and 2KV. I took it to a friend who measured it and found 80pF.
Does this mean the cap is good or bad?
Before I put the power supply back in and re-measure the output voltage going to the inverter, I have a silly question. Is it supposed to be a DC or AC 24v voltage coming out of this vestel unit?
Best Regards,
KadLeave a comment:
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Vestel 17PW19-4 (Intermittent backlight)
When I switch on LCD tv Toshiba 23W330DB, the backlight has a continous quick flickering.
I suspected a problem with the Vestel power supply unit 17PW19-4 (see attached pictures).
I first measured the output voltage that goes to the inverter and found around 42Volts there!!! (no load i.e. inverter cable disconected).
Any pointers please?
Thanks, Kad
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