Question about Audio & Video Receivers
D-644 LF speaker in my EVP X makes strange noise when volume is up
and music has full bass or drum peaks.
After opening the cabinet and disconnecting the speaker I saw that lower part of the cone is disconnected from metal base.
Any suggestions on how to fix it, glue it..????
thanks a lot
SOURCE: marantz sr 4200
This is an indication of some bad solder connections on one of the boards. It could be the power supply board, amp board, or the digital board. I would like to be more specific, but this is not a common problem with those symptoms. Bad solder connection are a common problem and can cause many different unusual symptoms. Unless you have excellent soldering skills, it would be best to let a service center repair this for you. This is a very good receiver and is well worth getting fixed. If you have excellent soldering skills and are willing to take a chance on fixing it yourself you could save yourself some money, but be aware that if you make even one mistake while soldering, you could easily cause much more damage than you started with. Some of the components that may need to be resoldered are surface mounted IC's that are very difficult to resolder and if you have never done this before it is not a good idea to start learning how to solder on such a nice receiver.
Let me know if you need any further help.
Posted on Oct 27, 2008
SOURCE: Receiver frying noise
I have the same unit and discovered there's 2 cooling fans inside.
one is not working at all and the other is turning very slow.
With that said I'd open the cover and see if it's the fans.
Posted on Nov 10, 2008
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