[Test-Equipment] Need Diagram for HP analyzer power supply

[Marco Bruno]

At 01.43 16/03/2006, you wrote:
>Hello Folks,
>
>I have an HP 3588a spectrum analyzer, which until this morning was working
>perfectly.
>
>It popped the fuse when I turned it on.
>
>The power supply comes out of the unit making it easy to replace or
>troubleshoot. The problem is it uses a switching supply and has about 9
>output voltages.
>Does anyone know where I can buy a copy of the manual??
>
>Has anyone worked on one of these before?
>
>Without the schematic is kind of tough.
>
>Thank you for any help
>
>PauLC
>W1VLF


Hi Paul,

the schematics for the 3588A/3589A have never been released by HP.
More, the power supply is not HP-made, so even more difficult.
I'm repairing a blown 35660A power supply - exploded transistor.
Possibly we may exchange some info. In you supply is it possible to read
the type of the transistor mounted on the aluminum strip near the small
transformer? I may send a picture tomorrow, it could be the same model.

73 - Marco IK1ODO