First post, by aokvilla
Hi everyone
This is my first post here so I hope I am doing everything right.
I have just bought an IBM 5151, and MDA card on ebay, 'spares or repair'. Obviously when I received it, the monitor isn't working properly. There are horizontal lines going across the screen whenever it's turned on and the brightness is turned up. I can just about make out the text from my motherboard's bios on the screen, behind the lines.
Is this something that is repairable? I opened up the monitor and couldn't see any obviously leaking capacitors, but I don't want to discharge the tube and take out all the PCBs (and maybe make the problem worse) if this can't be fixed.
Here's the screen with the lines on it
Here's the main PCB on the inside