Intermittent fault with Marantz PM6004

cedmondson

Well-known Member
My PM6004 has recently developed a fault. Sometimes right channel speaker outputs sound (quite loudly) even with volume turned to zero, whilst left channel is silent. Turning volume up past halfway yields some sound on left channel but still at significantly lower volume than right. Balance control remains at centre.
The problem persists with different sources / different audio inputs on the amp.
However…its an intermittent issue and sometimes it can clear by itself whilst playing - at which point the volume noticeably drops a little on the right channel, left channel outputs at similar level to righrt and turning the volume knob to zero silences both channels.

Anyone got any idea what might be wrong here? Is it likely to be cost effective to repair?
 

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