Hi Guys (& Dolls if any),
I have a ViewSonic Monitor VA1703WB-2 that was playing up, turning off periodically and turning back on spontaneously or by pressing one of the monitor buttons only to turn off again. Buttons often did not work as they are supposed to so that to turn it back on, I had to press another button other than the power button.
One fine day the monitor went completely dead. It showed no sign of life whatsoever.
I searched the internet and electrolytic capacitors are invariably faulted. I opened the monitor up but all capacitors look absolutely fine. I replaced all the 470uF ones (6 of them) because that is all I could replace but have no meter to test the 3 remaining ones on the power board. The other board likewise looks fine.
The power cord is OK (no issue with that as it works ok with another device. I also checked the time-lag fuse in and off the circuit board. That too appears OK.
Can someone help me trouble shoot this monitor to see what could be wrong with it?
I am not so much into electronics and know only rudimentary stuff from what I learnt in Physics and from personal interest in the subject now and again as I attempt to learn on the fly when trying to repair things that go bust.
Thanks in anticipation.
Mark
I have a ViewSonic Monitor VA1703WB-2 that was playing up, turning off periodically and turning back on spontaneously or by pressing one of the monitor buttons only to turn off again. Buttons often did not work as they are supposed to so that to turn it back on, I had to press another button other than the power button.
One fine day the monitor went completely dead. It showed no sign of life whatsoever.
I searched the internet and electrolytic capacitors are invariably faulted. I opened the monitor up but all capacitors look absolutely fine. I replaced all the 470uF ones (6 of them) because that is all I could replace but have no meter to test the 3 remaining ones on the power board. The other board likewise looks fine.
The power cord is OK (no issue with that as it works ok with another device. I also checked the time-lag fuse in and off the circuit board. That too appears OK.
Can someone help me trouble shoot this monitor to see what could be wrong with it?
I am not so much into electronics and know only rudimentary stuff from what I learnt in Physics and from personal interest in the subject now and again as I attempt to learn on the fly when trying to repair things that go bust.
Thanks in anticipation.
Mark
