20 Most Recent Marantz SR4500 Receiver Questions & Answers


You can do it by using the arrow keys at the front panel.Study the user manual before that.

Marantz SR4500... | Answered on Oct 14, 2013


It is not so easy to probe into to find a protection fault condition. The fault can be your output drivers- the MOSFETS/IC's 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 like a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.In this case I think that some capacitors are faulty as when the set is put on it charges on to make the amplifier work. Possible fault in the protect circuit or preamp.
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 , maybe a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the protect is off then check for short on the speakers.

Marantz SR4500... | Answered on May 11, 2011


if your amp doesnt have air vent fins on the sides you shouldnt have any problems with overheating

Marantz SR4500... | Answered on Oct 06, 2010


Click here for Comcast Remotes Five Didgit Codes hope it works for you did for me.

Marantz SR4500... | Answered on Jan 24, 2009


If you are using AV cables from your TV for movies and a different hookup for the X-Box would explain that the relay for the sound inside your unit may have blown from being overloaded or faulty. Should be an easy fix at a trusted electronic service place.I am not sure if your system has a manual reset button underneath or on back, but you could look for a tiny hole with reset on it or a red button. It may save you a trip to the doc.

Marantz SR4500... | Answered on Nov 11, 2007


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

Marantz Audio... | Answered on May 10, 2018


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.

Marantz Audio... | Answered on May 07, 2018


Try Googling (Marantz)(685v)(manual) without parens.

Marantz Audio... | Answered on May 04, 2018


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.

Marantz Audio... | Answered on Apr 29, 2018

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