Question about Computers & Internet
When the monitor powers up it acts like it wants to work, then it works for approx. 1 sec. then screen goes black, the power led stays on and the menu led goes out, if you unplug the power and put it back in the monitor comes up for a sec then does the same thing. I checked the capacitors and all look good, i changed power cord with same result, i checked power supply and it is putting out 12.4 volts dc, it is supposed to put out 12 v, do not see any cold solder joints or any obvious problems. Any suggestions?
Sounds like the Backlight balance sensor circuit is shutting down the inverter supply. A weak bulb can cause this or a malfunctioning sensor circuit can cause it too. Best method to troubleshoot is to substitute good bulbs; if it still shuts down, look for a pair of small electrolytic caps on the inverter board near the bulb sockets. They may be weak.
Posted on Jan 04, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Jan 14, 2012 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Jun 25, 2011 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
Nov 19, 2010 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
Jan 13, 2010 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
Dec 09, 2009 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
Sep 08, 2009 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
Apr 22, 2009 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
Mar 18, 2009 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
Mar 16, 2009 | SVA-USA VR 17S 17" Flat Panel LCD Monitor
May 28, 2017 | HP Computers & Internet
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