### MP-182 Optional interface error

A power-up diagnostic error was detected in one of the optional interfaces (PH9 /PH10, probe changer, soft probe, or host computer RS-232 interface). The actual interface is identified in the previous error:

- MP-30 only: Error MP-522 Soft probe D/A interface board failure.

- Error MP-523 Host Interface rs-232 board failure.

- Error MP-524 PH9/PH10 RS-232 board failure.

- Error MP-525 Probe changer RS-232 board failure.

What you should do

1. Follow the steps for the related error listed above.