Hey all...
So, I've got a Viewsonic VX2753-MH. Currently, it doesn't power on. Symptoms/pathology are thus:
Couple years ago (maybe more than just a couple? I think these are a good 6 years old in terms of introduction), the VGA port just quit working. No problem, I switched over to HDMI. Then the HDMI port next to the VGA quit working. I tried the next HDMI port and it worked from there on out.
However, two years ago, it developed an intermittent power problem. The plug for the power source would sometimes have to be re-seated, or fiddled with, to get steady power. Maybe two weeks ago it seemed to have failed entirely. I pushed firmly on the plug, holding it in for maybe 30 seconds, and that "fixed" it. When I plugged the HDMI cable in, I lost power again, so with the HDMI attached, I pushed and held the power cable in the jack and got power again...but no HDMI signal! So I carefully pushed and held the HDMI cable in and finally got it to display.
Last night it seems to have given up the ghost entirely and no amount of reasonable force completes the power connection. Strangely, the PC it's hooked up to (it is one of two monitors), detects the monitor, but without power, there's nothing to show.
It is an old display - I bought it at CompUSA if that tells you anything about its age! - so figuring it was already broken and I had nothing to lose, I popped the bezel off, carefully removed the display panel and opened up the board housing. I didn't immediately see anything wrong with it: there's no popped or even slightly swollen or bulging caps, no popped or cracked resistors, etc. My thought was to reflow the board as some have done with ailing GPUs and laptop motherboards, but there's more than a little bit of plastic on the board and the last thing I wanted to do was melt that.
Even though it's old, it output a very clear picture, had no dead pixels at all, was very sharp, I like it quite a bit.
I went hunting for the board online, I've replaced display controller boards before in Westinghouse and others without a hitch, but apparently this thing's controller is pretty scarce. The only stateside supplier who had any, was this vendor:
http://www.tvpartsguy.com/products/v...015e1300r.html
...and he's out. The next two links in my Google searching were dead ends (out of stock, both at alibaba). I've found very similar boards, but I know from experience that even a single variation can mean it just won't work.
So is there any hope? To recap (no pun intended): All ports, right to left, died one by one, but before they did, they worked if very firmly pushed in and the connecting cable was held down. Does that simply sound like all the connectors are suffering from solder joint issues? Can I use a slightly different board and still be OK?
Thanks in advance, everyone!
PS - I found this forum because back in April someone else had an issue with theirs, and the 492A015E1300R part number turned this place up when I was googling it!
So, I've got a Viewsonic VX2753-MH. Currently, it doesn't power on. Symptoms/pathology are thus:
Couple years ago (maybe more than just a couple? I think these are a good 6 years old in terms of introduction), the VGA port just quit working. No problem, I switched over to HDMI. Then the HDMI port next to the VGA quit working. I tried the next HDMI port and it worked from there on out.
However, two years ago, it developed an intermittent power problem. The plug for the power source would sometimes have to be re-seated, or fiddled with, to get steady power. Maybe two weeks ago it seemed to have failed entirely. I pushed firmly on the plug, holding it in for maybe 30 seconds, and that "fixed" it. When I plugged the HDMI cable in, I lost power again, so with the HDMI attached, I pushed and held the power cable in the jack and got power again...but no HDMI signal! So I carefully pushed and held the HDMI cable in and finally got it to display.
Last night it seems to have given up the ghost entirely and no amount of reasonable force completes the power connection. Strangely, the PC it's hooked up to (it is one of two monitors), detects the monitor, but without power, there's nothing to show.
It is an old display - I bought it at CompUSA if that tells you anything about its age! - so figuring it was already broken and I had nothing to lose, I popped the bezel off, carefully removed the display panel and opened up the board housing. I didn't immediately see anything wrong with it: there's no popped or even slightly swollen or bulging caps, no popped or cracked resistors, etc. My thought was to reflow the board as some have done with ailing GPUs and laptop motherboards, but there's more than a little bit of plastic on the board and the last thing I wanted to do was melt that.
Even though it's old, it output a very clear picture, had no dead pixels at all, was very sharp, I like it quite a bit.
I went hunting for the board online, I've replaced display controller boards before in Westinghouse and others without a hitch, but apparently this thing's controller is pretty scarce. The only stateside supplier who had any, was this vendor:
http://www.tvpartsguy.com/products/v...015e1300r.html
...and he's out. The next two links in my Google searching were dead ends (out of stock, both at alibaba). I've found very similar boards, but I know from experience that even a single variation can mean it just won't work.
So is there any hope? To recap (no pun intended): All ports, right to left, died one by one, but before they did, they worked if very firmly pushed in and the connecting cable was held down. Does that simply sound like all the connectors are suffering from solder joint issues? Can I use a slightly different board and still be OK?
Thanks in advance, everyone!
PS - I found this forum because back in April someone else had an issue with theirs, and the 492A015E1300R part number turned this place up when I was googling it!
At least for some people, that's a source of income on the side.
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