What type of switch is the input selector? Rotary switches that use contact leafs can often grow intermittent. Maybe spray some DeOxit on it and turn it back and forth several times to reduce tarnish on it's contacts. If it's selected electronically or by other means...tell us what it is.
What type of switch is the input selector? Rotary switches that use contact leafs can often grow intermittent. Maybe spray some DeOxit on it and turn it back and forth several times to reduce tarnish on it's contacts. If it's selected electronically or by other means...tell us what it is.