Home Theater Questions? Ask a Technician for Answers ASAP
Hi, I'm Nathan.Sorry to hear that you're having trouble, but I'll do my best to help you. Please give me a few moments to review your details here.
The overheat can be an internal failure, but can be environmental as well.
Initially if it is in an enclosed cabinet or stacked with other components, separate it out and give it plenty of room for airflow. Next blow it out as best you can with compressed air and vacuum off the vent holes around the top and sides.
Let me know if that helps or if the flashing continues.
Is the overheat message showing, or just the flashing now?
Thanks for confirming, that isn't really overheating, it is just sensing an overload on the amp, which is what the flashing is for, a protection circuit engaging because there is a short in the output stage of the amp somewhere, or possibly a faulty on the control board.
Either will require repairs, since you were a tech you may be comfortable working on it, and you can open it up and look for a bad transistor or burn marks in the amp output. Typically though this is not considered a repair worthy investment, for a 2009 model it is already past its service life and if you were to take it to a repair shop, you'd pay as much to fix it as you would to replace it with a new model with updated features and a fresh warranty. Getting boards and parts to repair yourself even is typically not cost effective.
I can try to help with repair or replacement recommendations though, if you'd like.
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