I purchased an R&S FSP-30 on Ebay which had a defective system disk.
After replacing the disk and rebuilding the system firmware, I saw that
the step attenuator is also defective. After determining that all 3
attenuator pads were burned out (measuring ca.400k, 8.2M and 530k for
the 10, 20 and 40 dB pads respectively) I decided to take the step
attenuator apart and attempt repairing it. The pads are soldered into
removable brass fixtures. I am trying to source the individual pads to
be able to attempt replacing them.
The fixtures measure ca 10.7mm x 5.1mm x 4.9mm and the pads measure ca.
5mm x 2.5mm. Has anyone already attempted repair of this step
attenuator and/or have any references for sourcing either the pads alone
or fixtures with pre-mounted pads?
Thanks for any help.