/diy/ - Do It Yourself

>>1250649

an external power supply is a big plus coz they're easy to replace. however, if it's an LCD (as opposed to an LED) machine, then it will need inverters (transformers) to drive the CCFL lamps. if you're courageous, you can try reading the lamp voltages, which could be 800-1200 Vac.

also, reading 20V on the supply doesnt necessarily mean it's good. it could have several volts of noise which a multimeter will not pick up, but which makes it useless. you need a scope, or a known-good replacement, to exclude that possibility.