Hi all, this will be my first attempt at repairing an LCD monitor.
I haven't done much repair work in a long time, so I'm dusting off my gear and hoping for the best.
Equipment available:
My old trusty Fluke 77 DMM, Capacitor Wizard ESR meter, Hitachi scope, and a Blue ring tester is on it's way soon.
Monitor is a Dell E196FPf no backlight. Image is visible on the monitor with a flashlight so I suspect just the inverter, or maybe a bad lamp, though none of the 4 come on at all, even at power up.
2 caps in the inverter section are bulged and have relatively high ESR (2 ohms) other than that no obvious visible signs. Solder joints on the transformers look ok, I'll re-do them though.
I don't see anything that looks like a fuse so far. While I wait for caps, I'll look up some part numbers and test some of the transistors if I can.
Photos are full board, and closeups of the inverter section.
Has anyone worked on this model before?
I haven't done much repair work in a long time, so I'm dusting off my gear and hoping for the best.
Equipment available:
My old trusty Fluke 77 DMM, Capacitor Wizard ESR meter, Hitachi scope, and a Blue ring tester is on it's way soon.
Monitor is a Dell E196FPf no backlight. Image is visible on the monitor with a flashlight so I suspect just the inverter, or maybe a bad lamp, though none of the 4 come on at all, even at power up.
2 caps in the inverter section are bulged and have relatively high ESR (2 ohms) other than that no obvious visible signs. Solder joints on the transformers look ok, I'll re-do them though.
I don't see anything that looks like a fuse so far. While I wait for caps, I'll look up some part numbers and test some of the transistors if I can.
Photos are full board, and closeups of the inverter section.
Has anyone worked on this model before?
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