Question about Audio & Video Receivers
My marantz av550 pre amp keeps cutting out and when I turn it back on it buzzes loudly inside the pre amp and through the speakers.
How old is this amplifier and pre-amp?
Posted on Feb 12, 2009
Hi and welcome to FixYa,
The only possible source of the buzzing sound in a pre-amp would be relay(s). Since there are no high power components, this could either be a faulty relay trigger transistor or leaky capacitor either in the power supply circuit of the pre-amp or mainboard. It is also possible that other connectors could be loose and/or cold solder issues. Best approach would be to open the unit up for a look & see.
Good luck and thank you for using FixYa.
Posted on Jan 28, 2009
I find it some internal connections problem.just check is there any short tracking inside .
Posted on Jan 27, 2009
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