Earlier this year around February, I found a Viewsonic VG2230WM in the trash. I took it apart and found blown Capxon caps. I replaced all but two with FR, FM and FC caps and the unit was fine until tonight.
The two I didn't replace was the big 400V 120uF and a small GL 50v unable to see the capacitance due to some really hard glue that even a razor blade couldn't cut into it or it removed the paint/sleeve from the can. I think it's 22uF. At the time I wasn't really confident in maneuvering in tight spaces with a soldering iron, since the location of the small one was surround by zener diodes on the back side, I skipped it.
All night the picture kept freezing, I mistakenly thought it was the system on the bench locking up. Well Just about 30 minutes ago I got up and went to the kitchen and when I came back the monitor was missing the right portion of the screen. Maybe the T-Con board went kaput. But then I looked closer and saw the blue LED light was dimming then returning to full brightness, but the backlight did not exhibit this problem.
Turn it off and it never turn on again, Unplugged wait a few, replugged it back in. It turn on and display ok for 5 seconds before green lines appear all over the right side of the screen and then the display went dead.
Took it apart didn't see anything wrong.
Question is would this small Capxon GL be the problem? it's located on the stand-by side of the board
I'm pretty sure it's 22uf 50v, voltage is correct since that writing was in clear sight. But I don't have any 22uf, used my last one few days ago. I have 2.2uf and 47uf at 50v Panasonic FC, would one of these make a good substitute? or should I just order the correct one from digikey?
The two I didn't replace was the big 400V 120uF and a small GL 50v unable to see the capacitance due to some really hard glue that even a razor blade couldn't cut into it or it removed the paint/sleeve from the can. I think it's 22uF. At the time I wasn't really confident in maneuvering in tight spaces with a soldering iron, since the location of the small one was surround by zener diodes on the back side, I skipped it.
All night the picture kept freezing, I mistakenly thought it was the system on the bench locking up. Well Just about 30 minutes ago I got up and went to the kitchen and when I came back the monitor was missing the right portion of the screen. Maybe the T-Con board went kaput. But then I looked closer and saw the blue LED light was dimming then returning to full brightness, but the backlight did not exhibit this problem.
Turn it off and it never turn on again, Unplugged wait a few, replugged it back in. It turn on and display ok for 5 seconds before green lines appear all over the right side of the screen and then the display went dead.
Took it apart didn't see anything wrong.
Question is would this small Capxon GL be the problem? it's located on the stand-by side of the board
I'm pretty sure it's 22uf 50v, voltage is correct since that writing was in clear sight. But I don't have any 22uf, used my last one few days ago. I have 2.2uf and 47uf at 50v Panasonic FC, would one of these make a good substitute? or should I just order the correct one from digikey?
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