20 Most Recent Marantz SR8001 - Page 6 Questions & Answers

Fuzz and pop sounds like bad capacitor or blown transistor. Best to take it back to service center. While there, throw your toys out of the cot, explaining that they did a 'b*m' job.

The unit will need servicing, I would not recommend you poking around with the scope circuity as there is up to 580v there and it will ring your bell. I have worked on several 4400's and nursed them back to good health. www.back2lifeelectronics.com

http://media.onecall.com/image_products/marantz/sr6006u_eng_manual.pdf Page 137 has remote control settings.

Service manual, (not a User Manual), available by login at the site below: https://www.hifiengine.com/manual_library/marantz/sr-82.shtml

Manuals require login to obtain. https://www.vinylengine.com/library/marantz/6100.shtml

Hi Neville. go to this link and its the manual this might help you out. Marantz SR6007 Owner Manual Troubleshooting Or this link might help you out. How to reset Marantz sr6007 to factory reset Google Search

I think your radio is as much computer as radio. Computers are everywhere and contain delicate CMOS circuitry - easily damaged by a power surge such as often accompanies a power outage. Surge protectors should be used to provide a measure of protection, although it is possible a software fault has been caused by the sudden interruption of supply.

That will have knackered the main power output device(s) located on the big heatsink. If they are transistors you should be able to tell which are faulty as a meter on the pins will give a full scale deflection, just like it was a piece of wire. There could also be physical signs of damage such as parts blown apart or burning.

Is the AMP grounded to the other components?

Is the amplifier being overloaded by the speakers, generally if they shut down like this its because the amp can't supply enough power to the speakers or there is an issue with the wires being to light gauge.

Here is the entire service manual with lots of troubleshootnig ideas...Good luck! Marantz SR6003 Service Manual

I'm an authorized service center for Marantz although I mainly work on vintage equipment, according to the manual the code your getting is for speaker impedance imbalance , but if you don't have speakers hooked to it then you have issues with one of the channels output stages, it may not be something you can fix yourself unless you have some fairly advanced electronic skills

It could be the amplifier but most likely it’s going to be either the connections or a power supply issue. Do you have anything plugged into the same outlet? What type of power strip are you using. The amp will usually go into a protect mode as to not damage anything before it would create the environment to cause a blown speaker. I know that with your model, along with multiple others, have had issues with the power board needing replacement.