R&S FSEB 20 spectrum anaylyzer I2C EEPROM reading error

[maxtee]

Hi,
  I am trying to debug my FSEB 20 spectrum analyzer. I am getting "Err reading I2C EEPROM on RF_module board" message and the screen shows "UNCAL OVLD"  on the upper left of the screen.

[SMdude]

I'd track down the eeprom and check the supply voltages to it. If they are ok, try a little bit of hot air to warm it up and see if it boots then.
Failing that, you would need to check that there is communication being sent to it. And perhaps try and read its contents.

Disclaimer! I have never worked on this device, it is just the general path I would follow to diagnose/repair it.