hifi engine

Marantz 4270

I connected two speakers to the Front Main Speakers terminals located on the upper left corner of the back of the unit. The right speaker has a weaker signal than the left, but the terminals appear to be clean with no dust or oxidation. Does anyone have any suggestions as to what would be the next step in resolving this issue? Thanks in advance...

Re: Marantz 4270

You don't say how much quieter, or how much experience you have with electronic repairs, but first steps might include trying a different source and input and swapping the speakers around to make sure the problem lies with the receiver.

After this you could try cleaning the selector switches and volume/balance potentiometers, and checking for dry solder joints around either these switches/pots or the phono connections.

After this it's standard fault finding, including looking for burnt components and isolating the problem area of the board..