Hi there,
I'm trying to repair my old spektrum analyzer (ADVANTEST U3641) which seems to have some problem with its firmware (I assume).
In the attachment you can see the only window the instrument shows when it boots up, where it asks to install the system software.
It seems to be possible to download the firmware via the serial port... but I can't find any info on the web.
Do you have any clue? Thanks for your attention!