Adjusting and calibrating Hameg HM-605 channel gain

Yesterday I have noticed that voltage or gain of channel 1 in my scope is a little bit off ( noticed that by analyzing one circuit on same output with dual signal ). I have Hameg HM-605 service manual (you can download it at the bottom) and I found there instruction of adjusting channel gain. Basically you just provide square wave signal ( I used scopes calibration output ) and adjust corresponding pot. Its an easy fix as you can see in a video below.

Download HAMEG HM-605 oscilloscope service manual and user manual.

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