IBM Thinkvision 6736-HC9 No power

[eckertb83]

Re: IBM Thinkvision 6736-HC9 No power

Ok in the mean time I will start by check resistance on the small caps and resistors around the IC and see if I come up with anything that looks bad or out of the ordinary.

[ank]

Re: IBM Thinkvision 6736-HC9 No power

Has everyone given up on this? I have a similar condition, difference being that I loose power after working ok for several seconds to for ever.

[Davi.p]

Re: IBM Thinkvision 6736-HC9 No power

i am come back to this thread, something in the feedback could be wrong, dismount the optoisolator and test it, one side as a normal led with dmm diode check, for the other as a C-E pin of a bjt transistor, it must read open, then you can connect a 1,5v battery on the led side, the dmm probes on the other on current test mode, if there's a current toggle the battery and the current must fall to 0.