Andy1845c
Active Member
Just kind of a shot in the dark, but my 5 year old CRT moniter died the other day. I wasn't home when it happened, but my wife said she turned it on and nothing happened, no pop or flash on the screen. I dosn't do anything now. I can't even get the power indicator LED to light. I was hoping the fuse just blew, but that checks out okay.
There is a small relay on the board. I can activate it with a 9v battery, so I am pretty sure the mechanical part of that is okay. Past that, I don't really know what to look for. I don't see any burnt components or anything visibly wrong. I am assuming that the failure is in the power supply side of things, since the relay won't click with the switch and the LED is not lit. I see a small transformer that appreas to have several taps and some dioides that appear to be arranged as a bridge rectifier.
I don't remember the brand (I'm at work atm). Its from an E-Machines computer setup. Doubt it matters anyway unless someone knows where I could possibly find a schematic.
I know its at the end of its useful life, but I thought it would be cool to be able to repair it and thought maybe someone here knows of a common fault I could investigate.
There is a small relay on the board. I can activate it with a 9v battery, so I am pretty sure the mechanical part of that is okay. Past that, I don't really know what to look for. I don't see any burnt components or anything visibly wrong. I am assuming that the failure is in the power supply side of things, since the relay won't click with the switch and the LED is not lit. I see a small transformer that appreas to have several taps and some dioides that appear to be arranged as a bridge rectifier.
I don't remember the brand (I'm at work atm). Its from an E-Machines computer setup. Doubt it matters anyway unless someone knows where I could possibly find a schematic.
I know its at the end of its useful life, but I thought it would be cool to be able to repair it and thought maybe someone here knows of a common fault I could investigate.