Question about Marantz SR-7200 Receiver

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Marantz sr 4200

When I turned on my marantz sr 4200 , for 4-5 minutes , it has peaks, the led indicator is red , and I hear a lot of noise in my speakers .After this period it work normaly , and peaks disapered

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  • sorin_cotart Oct 28, 2008

    Dear Guru! Thanks for your advices , I take observe on your suggestion , and now my Marantz sr4200 it really work . No noise in may speakers ,no red led on peaks ....its like the same receiver as I took from the dealer .I notice , it was also a problem with the 12,288 MHZ quartz , and I replaced it .(PCM indicator blink, and digital input doesn't work) Once again I like to thanks you , it is now a really nice receiver.(please excuse my bad english,but I was desperately to solve this problem and I appeal to you as an ultimately solution)



    With gratitude , Sorin Cotarta

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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.

Dave

Posted on Oct 27, 2008

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1. Plug Red Plug into the the Red Slot, and White into the White on the back of your set-top-box or TV Out (if you get it around the wrong way, the speakers will be reversed.)

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[Set-Top-Box or TV out] >-------> into >------> [Marantz SR-4200]

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