I have two computer monitors that I want to fix, but unfortunately I am not allowed to work on them or test them at all while there is power in it. I am allowed to observe, and that's it. I was wondering if anyone could give me any ideas on how to fix them without power?
The first one is a Samsung Syncmaster 750s that is warped. Each colour is warped a different amount, in an effect that looks like the opposite of pin-cushioning. I can't see any obvious fried things.
The second is a Hyundai 1772E that doesn't appear to be getting power to the picture tube. (I can't make sure, because I'm not allowed to test it.) I don't know if the tube is supposed to warm up visibly or anything, but I see no change in it. The standby light turns on, so it is not a completely blown power supply.
So if anyone can suggest anything for these, which doesn't involve touching it with the power on, that would be great. Also, if anyone has any service manuals or schematics for either of these, I would be very grateful.
Thanks Andrew Howard