Electronics > Repair

HP-8569 Spectrum Analyzer Repairs

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AF6LJ:
Okay the CA glue has set up and cured now it is time to apply epoxy.
The surface is roughed up, and cleaned.
Out comes the hair dryer the epoxy and cotton swabs..




The switch rotor will now sit under an incandescent lamp for several hours to speed up the curing process and to help drive off moisture.

Stay Tuned reassembly is next.

xrunner:

--- Quote from: AF6LJ on February 01, 2018, 10:18:49 pm ---Stay Tuned reassembly is next.

--- End quote ---

Interesting work! I'm going to be glued to this thread until the final results.  :popcorn:

bitseeker:
Thanks for the detailed log, Sue. Very educational. Looking forward to reassembly and power up.

AF6LJ:

--- Quote from: bitseeker on February 01, 2018, 11:09:46 pm ---Thanks for the detailed log, Sue. Very educational. Looking forward to reassembly and power up.

--- End quote ---
Thanks; I enjoy doing these...

AF6LJ:
This morning the the resoluation bandwidth and frequency span switches were reassembled. Pictures will be posted later on...
I am going to take a moment and warn people about the assembly procedure in the manual....
It's not necessarily right, so far of the two 8569s I have rebuilt switches in the front panel assembly was slightly different on both. This makes it all the more important that you take photos especially of how the hardware stacks up on these switch assemblies.
The pictures I took were valuable in the reassembly process.

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