Re: Problem with Viewsonic VA1912 Lcd
can you give a bit more detail on the parts swap,was it the inverter board? Are the inverter and power boards separate on the 17" viewsonic?
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Re: Problem with Viewsonic VA1912 Lcd
How were you able to determine that it was a ccfl problem?
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Re: Problem with Viewsonic VA1912 Lcd
tried the monitor contrast/brightness at 25/25 and it was several hours until the first shutdown and then the intervals between shutdowns were much longer. Tried the fan but it made no noticeable difference. I would appreciate any more suggestions you might have
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Re: Problem with Viewsonic VA1912 Lcd
HI Retired Caps, Thanks for the suggestions,I will have to reassemble the monitor to try them out. I have checked for bad soldered joints but I can't find any. Meanwhile here are the photos you requested...
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Ancientwhiz-profile
Hi I am a retired mechanical engineer who likes to tinker. I have been using computers since they first appeared and have put together several for my own use. I have built power supplies and pre-amps using kits and following instructions which you can do without understanding whats really going on. As I am 82 years old you won't have time to make me an expert but your expert guidance will be much appreciated,
Bill Hanley
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Problem with Viewsonic VA1912 Lcd
My Viewsonic monitor is about 3 years old and has been ok until recently. When I switch the unit on it works fine for 10 to 15 minutes then switches off completely,the power LED is off. After a while the power Led comes back on and the monitor works ok for several minutes and then switches off again, This cycle just repeats and if I disconnect the pc it repeats with the no signal screen. I have stripped out the power/inverter board and there are no obvious signs,the caps all look pristine. The power board is a Delta(no model no) and the monitor is by CHI MEI model A190A2-HD1.
I have been...
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