Schematics for HP 33321RK step attenuator

[wedge]

Hello guys,

I'm looking for the schematics of this rf attenuator.
It's non working, and I'd like to check at the it before removing all screws and solder around the solenoids.

I search the net, but I only got the light manual..

Thank you!

Regards!

[tomlut]

Did you see this repair, no schematic but a lot of detail: http://ve2azx.net/technical/HP_StepAttenuatorRepair.pdf

[wedge]

Hello,

Yes, i had a look at it, but my model is different.
I have no problem with attenuation, my problem is I think is on the pcb (no switching and some ICs are very hot...).

Anyway, I managed to remove the pcb from the solenoid without breaking any pin (at first glance, it looked very weak..)
I can see now the traces and vias, i'll make my own schematic.

Thanks!