My MSO58 does not pass performance verification

My MSO58 Scope does not pass performance verification. Out of tolerance on Channel 7, 1MOHm Z, 1mV/Div, 2mV/Div, and 5mV/Div. SPC was ran, but did not bring values into tolerance. Is there and adjustment procedure or software if available to resolve this?

Hello,
Sorry there is no external or customer available adjustment procedure for the MSO4,5,5B,6,6B Series scopes they need to come into Tektronix Factory service for adjustment.

To set up a repair RMA (model and serial number)
call 1-800-833-9200 opt 2.
Or send an email to rmarequest@tektronix.com
https://www.tek.com/en/services/repair/mytek_rma_request