Question about Computers & Internet
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: monitor goes dark
If the power light turns yellow, there is no signal being received by the monitor from your computer's graphics card. The screen will shut off (go into idle mode), which is a low-power state, that saves energy. Check that the cable on the back of your computer is plugged into the right graphics card (many PCs come with more than one, these days). There may be one built into the computer's mainboard, and another one may be on a separate graphics card located somewhere else on the machine. Only one of these will work on startup. If one doesn't work, try the other.
Posted on Apr 23, 2010
Look for bad caps as shown in my pictures, worst case can be bad lamps assemblies, see pictures of bad lamps album.
Posted on May 23, 2010
SOURCE: I have a problem with
There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for 5 mins, then try.
If you aren't tech savvy, this unit needs to go in for repair.
If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering).
Most of the caps that go are 10V 1000uF or 3300uF.
I found some great videos of the procedure (for different brand, but same issue) on youtube.
As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.
Posted on Mar 05, 2011
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Mar 04, 2011 | ViewSonic VX1940w LCD Monitor
Jul 15, 2010 | BenQ FP731 17" LCD Monitor
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Jul 13, 2010 | BenQ FP71G 17" LCD Monitor
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Feb 22, 2009 | BenQ FP731 17" LCD Monitor
Aug 17, 2008 | BenQ FP71G 17" LCD Monitor
Jun 03, 2008 | BenQ T705 17" LCD Monitor
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