MARANTZ PM80 output is not steady.
the purchase was from a used market last week.
while receiving its speaker A L&R was working, speaker B R channel was not working.
cleaned the volume control, balance, bass, treable and input selection knobs well.
after cleaning both A&B L&R are working but automatically going up & low sometimes only one channel is playing up & low sometimes both channels.
outer and inner area of the amp is looking nice and no noticable repair marks.
all caps and other components are of same make, no odd ones.
the cleaning liquid used is Video90 of CRC chemicals.
only the volume knob size is big enough, tre is a chance for cleaning solution to get into the moving contacts.
others bass treable speaker selection switches etc. are looks like a solid state relay and the size is small, i dnt know the cleaning solution can get into it.
:sad:
experts/marantz pm80 users please help me solving the issue before sending to a repair shop
the purchase was from a used market last week.
while receiving its speaker A L&R was working, speaker B R channel was not working.
cleaned the volume control, balance, bass, treable and input selection knobs well.
after cleaning both A&B L&R are working but automatically going up & low sometimes only one channel is playing up & low sometimes both channels.
outer and inner area of the amp is looking nice and no noticable repair marks.
all caps and other components are of same make, no odd ones.
the cleaning liquid used is Video90 of CRC chemicals.
only the volume knob size is big enough, tre is a chance for cleaning solution to get into the moving contacts.
others bass treable speaker selection switches etc. are looks like a solid state relay and the size is small, i dnt know the cleaning solution can get into it.
:sad:
experts/marantz pm80 users please help me solving the issue before sending to a repair shop
