I have a IIc monochrome monitor and it has a slow (about 2 or 3 seconds) horizontal wave that moves vertically down the screen. My first thought was to recap the monitor, so I ordered the caps and did the job. I replaced all the caps with the same farad rating, equal or higher voltage rating, and all are 105 degrees vs 85 degrees of the original caps. I powered up the monitor tonight and sadly it still has the slow horizontal wave, but even worse after about 30 seconds of operation C514 (100uf 50v) blew.
The monitor still displayed an image until I powered it off (a few seconds of fumbling to hit the power switch while my brain registered what just happened). I checked the cap's orientation against the circuit board, as well as a photo I took prior to removing the original caps. I did not install it backwards. I took the cap out and went to measure the voltage across the pads where the cap would be installed, but now the monitor does not power up at all (even though it was still showing a picture before I shut it off previously).
I should know better than to recap a monitor without knowing how to readjust the power supply circuits afterwards, but I was hoping it would just be fine... I did find the SAMS schematics online and I will start troubleshooting from that, but in the mean time does anyone have any suggestions or known "gotchas" about this monitor?
The monitor still displayed an image until I powered it off (a few seconds of fumbling to hit the power switch while my brain registered what just happened). I checked the cap's orientation against the circuit board, as well as a photo I took prior to removing the original caps. I did not install it backwards. I took the cap out and went to measure the voltage across the pads where the cap would be installed, but now the monitor does not power up at all (even though it was still showing a picture before I shut it off previously).
I should know better than to recap a monitor without knowing how to readjust the power supply circuits afterwards, but I was hoping it would just be fine... I did find the SAMS schematics online and I will start troubleshooting from that, but in the mean time does anyone have any suggestions or known "gotchas" about this monitor?