Question about ViewSonic VG150 15" LCD Monitor
The monitor seemed never to switch on so I replaced the switch with a Radio Shack momentary pushbutton switch. All well? No - not quite. I'm utterly baffled! To switch the monitor on, the switch does not work at all. the switch is fine, the soldering is fine, the wires are fine. I checked them all with my meter. I switch the monitor on by crossing the soldered joints on the mainboard with a screwdriver. I can then switch the monitor off using the switch I put in. Resistance on the wires and switch are negligible. Holding the switch down for a long time, pumping it etc have no effect on switching the monitor on. One tap is all I need on the switch to turn it off. I can get the monitor on every time by using the screwdriver method. Any explanations to this bizarre behaviour? I'm all set to toss the thing in the trash if this continues.
I recently (last week) replaced an LCD screen on this model monitor and I have the remnants of the parts monitor still. If you think the problem is the circuit board with the switches, I could send you that part *NO CHARGE* (if you're in USA). I can't post contact information, though, or I'll get in trouble. Don't know how to continue at this point. Do you want to try posting contact information?
Posted on Aug 21, 2007
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Basic LCD monitor and TV troubleshooting guide:
Failed TV, Monitors, capacitors, and lamps pictures: http://s807.photobucket.com/home/budm/allalbums
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Replacement board: http://www.lcdrepair.us
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Replacement board: http://www.lcdrepair.us
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