Electronics > Repair

How To: Make a new boot disk for your HP 4145B Semiconductor Parameter Analyzer.

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TERRA Operative:
I would check and adjust the power rails as a first step, the golden rule of troubleshooting... Thou shalt check voltages!  :-DMM

RikV:
I did that as soon as I had the opportunity. Right at that moment that was not the case. Anyhow, all voltages were in spec at the time of verification. As I said: the red LEDs are misleading (me), they should be green since they indicate an OK situation.
I did some measurements and all SMUs seem operational and rather on spot. Full calibration, starting with the 1345A, to be done (this will take a lot of time I guess).

BTW, my 4148B is missing the plastic parts (front bezel and button) of the FDD. Anyone who happens to have the necessary 3D files to print them?

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