Maybe We Can Figure This Out Together

[OldSchoolAES]

Hello Everyone!

So I'm trying to get an old piece of equipment from 1974ish to 1981ish time frame, the circuit diagram dates it to 1981, to come back to life where I work. It's basically been abandoned for years and was covered in dust when I found it. I happened to find the dust covered manuals with circuit diagrams for this multicomponent machine.

What's this machine you ask? It's an old school PHI 545 AES or Auger Electron Spectrum analyzer built in 1974 and there are at least two parts of the thing that aren't working properly.

If I upload images of the circuit diagrams and a list of components on the boards in the first component of the system and tell you what it's not doing properly, according to the manual, do you think you might be able to help me figure out what in the world popped on the board? I've been at it for a few weeks now and I've run into at least one component that I've had to replace, an MHQ6002.

This is basically a project to keep me busy during my down time at work and is pretty much useless for us as a lab.

[frozenfrogz]

Welcome to the forums

It would be nice to rename your thread to a more specific title. You can edit your initial post and also edit the subject line there. I suggest something like: "PHI 545 Auger Electron Spectrum Analyzer: Help needed." or similar. That way people can already tell if it is a thread for them worth looking at or not.

The more information you can share, the more likely it will be you get pointed in the right direction.
It definitely helps if you can provide schematics, decent quality photos of the device / PCBs / parts you are working on and a description of what you already measured/did/tried.

Kind regards and have a nice time here,
Frederik

[rhb]

Someone started a thread, "Has any tried to build a mass spectrometer"  or similar title.   One of the first replies was from someone who had built two! A low budget academic instrument and a high budget commercial instrument.

Edit the title.  You might even get a reply from the designer or a factory technician.  It's a pretty amazing group of people.