|06 Jul 2012||#1|
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Fixing an external monitor (hardware problem)
I have a Westinghouse model LCM-19v7 external monitor that I picked up from a friend a few years back. When I got it, everything worked great, except that the power light would never come on, and none of the menu, brightness, etc buttons on the front would do anything. But that didn't really matter because it would start working as soon as you plugged it in.
Shortly after I got it, I was testing it out to see how well it worked and whatnot. I had only used it on my laptop via the VGA connector and wanted to compare the quality to using the DVI connection or something, I don't remember exactly what I was doing. The end result was that I plugged in the DVI cable to it in preparation for trying it out on another computer, at the same time that I had it hooked up to my laptop via the VGA connector. The monitor went black, and I figured it just wasn't smart enough to decide whether to use the VGA or DVI connection (even though only the VGA one was hooked up to a computer), and had blacked out in confusion. But after some testing, I could no longer get anything to come up on the monitor, no matter how I configured the connections.
I ended up taking it apart and noticed that several of the capacitors on the power board were bulged a little bit, and I shelved it, to be worried about some other time.
A week ago, I remembered that I still had this thing and coughed up the 15 bucks for a full set of replacement capacitors online (lcdalternatives.com). They came in and I finally got the old ones unsoldered from the board and the new one soldered on. But the monitor still doesn't work. I can't get it to do anything, and I can't tell if it's getting power properly because, like I said, the board that holds the power light and buttons never worked to begin with (at least when I got it). I'm A+ certified, so I'm fairly knowledgeable about computers in general, but I don't know what to do from here. Never had to do much of anything with a broken monitor before. If anyone could give me some troubleshooting help, I really want to get this thing fixed because it's worth about $180.
I know people say you shouldn't service computer monitors yourself, but I've been poking at this thing for quite a while and haven't had any problems. As long as I'm careful and don't try to do anything with it while it's plugged in, I know I'll be fine, so I'd appreciate not just being told that I should forget about it because it's too dangerous
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