Question about Marantz SR7008 9.2 Network Home Theater Receiver

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Overheating light flashing. How do I reset

When powered on, unit shuts itself off. I have allowed cool down but does not have any effect

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  • Marantz Master
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Sounds like youprobably have a short in the amp that will need to get repaired

Posted on Nov 11, 2014

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Is the fan that cools the projection high intensity bulb running? This sounds like an overheating condition, there is a temp sensor that will shut the machine down if it senses the temp is to high and poses a fire hazard or further damage to the projector.

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My ps3 starts to turn on for 1 second. Yellow light flashes, system shuts off, and red light blinks. Help?


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unplug the unit and, let it sit for 10 minutes to cool. after the cool off, plug the unit into the wall socket once more and, power up. if it continues to shut down and, flash the red light, this will confirm a major fault within the power unit. Contact Sony for the replacement of the power unit in this case.

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it might be overheating. clean off the dust filters (bottom towards the front). if there's not enough airflow to cool it down, the projector will shut off to save itself from damage.

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Shuts off on its own.


This can be from a number of issues. I must answer you genericaly, because I have no service information for your model type or worked on the model you have.


Common problems that cause power down for the lamp:

Failing power supply, most likely due to components that are changing spec with temperature. These are parts that have become thermo sensitive.

The lamp or its load effect is causing some over heating in the unit, or one or more of the boards themselves are overheating. This can be from a cooling problem. It is very common that maybe a cooling fan is not functioning properly. Faulty components in the power supply, or the lamp supply can also cause this effect.

A defective lamp can also cause the power supply, and or the lamp supply to go in to protection mode.

The service tech would start by replacing the power supply for the lamp, and testing the cooling fan's performance. He will also try a new lamp. If the unit still has a fault he will try the main power supply. The next step is to start replacing modules (boards) to find the one that is cauing too much current pull.

After the unit is serviced and apears to be working, the service tech should run a temperature test on the unit over a number of hours to make sure that there is no overheating. He should also run a current draw test to make sure that the set is in specs.


Jerry G.


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HI there

Is there any on scren messaes before shutting down and when shutting down - which of the LED's on the unit is flashing and what colour ?

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