Question about Marantz SR5500 Receiver
I have a Marantz SR5500 Receiver purchased about 18 months back. Usage is the receiver is low. However, since one month started having problems with the Receiver. When Switched ON, the receiver plays for sometime and then flashed "Protect" and goes into a Standby mode. Will not be able to use the Receiver once this happens.
Had the same problem. Tried different power leads, checked earthing but power plug does not have earth connection to chassis.
The power socket was the problem. There had been too much heat applied to the internal power connections causing the prongs in the socket to retract slightly. Noted the power lead plug did not engage tightly with the socket.
Replaced the socket taking care not to overheat the connections. All fixed.
Might be a bit late for most of thoise who have dumped a great amp.
Hope this helps.
Posted on Apr 11, 2009
I have the same problem, and it is not for the surge.
Posted on Oct 09, 2008
Sounds like you have an issue with your electrical circuit. Your receiver could be receiving spikes of current from the electrical wiring in your house.
Review your current electrical situation. Keep in mind that certain outlets are on the same circuit and that running multiple, high-wattage devices on the same circuit can cause issues with some of those devices. Especially when it comes to turning devices on and off.
Many devices take a sudden, rapid charge to power their circuitry the moment you turn the device on. Home audio and HVAC systems are particularly notorious for doing this. Other devices on the same circuit can sometimes suffer influxes of power flow and may either turn off or go into standby mode to protect themselves from the resulting surges.
I've lost audio systems that way... I lived in an apartment building that has wiring most likely dating back into the 40's. I once turned on a space heater on it's max 1500 watt setting and blew my Logitech Z-680 speakers. (The "BOOM" sound that emitted from my subwoofer was AMAZING. I had just blown an amp circuit. It literally exploded inside of the subwoofer. Took pics and everything.)
If you have the means to do so... You might consider re-wiring your electrical circuit. Take into consideration where you're going to run certain devices and wire the system accordingly.
In the meantime, you would want to be sure to buy a HIGH-QUALITY surge protector for the audio system. Spend a few bucks and get a GOOD one with a good warranty on it. Don't use those cheapy ones that we only really use to split the outlet. NOTHING under 1,000 joules.
My receiver sometimes locks itself like that, though. If we have a power outage or the unit is unplugged suddenly, it will keep itself in standby mode until you unplug it, press the power button a few times to discharge any current left in the capacitors and plug it back in normally. Only then will it turn on again.
Let me know what you come up with.
Posted on Nov 03, 2007
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