Question about Marantz SR8001
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Posted on Jan 02, 2017
SOURCE: Marantz support question
Hi I had my SR7200 in the shop also. The 1st time they said that they couldn't find anything wrong with it. I brought it home and had the same problem. Brought it back and they had it for about 1 month and finally called and said that they talked with Marantz and the DSP needed to be replaced. They said that they would have to send it to Mararntz and it would cost about $150
Posted on Feb 28, 2008
my friend has the same problem with an SR 4001. the tech said it was an internal fuse soldered to the board. the display showed an error code that clued in the tech of the problem. I am trying to find the fuse on the board, and trying to get a value(Volts-amps) of the fuse
Posted on Jul 28, 2010
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Dec 02, 2016 | Marantz Audio Players & Recorders
It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.
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