Purple MC77 meter issue

Help Support GroupDIY:


Well-known member
Jun 9, 2014
Hi guys, hope someone could point me to the right direction on solving this problem.
My Purple MC77 shows this issue (I got other 1176 that doesn't, UA, Hairball, etc.): last week I switched it on, the meter on GR wasn't on zero but far away on the left side. So I used a screwdriver to take it back to 0 but this stays firm only when RELEASE knob is completely ccw. If I begin to move the knob cw the meter goes up to his maximum on the right. From what I remember the meter needs to stay firm when the release knob is moving, if no signal is applied (obviously).
Anyone has an idea on what may cause this? Any help is appreciated!

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