Question about Panasonic SC-HT70 System
My system does the same thing with F61 displaying for 5 seconds before shutting off. I took the fan in the rear off, and noticed that it came on to the touch but didnt stay on continuously. However, when it came on It started performing normally. So, I also noticed that the insides where the fan was located became warm when no air was blowing on it. System will shut off to protect itself. Dont know how to get fan off yet. But fan for my model is sold on Panosonic Website. Not very expensive if you know how to install. Around $17.00 for fan itself. If someone knows how to install , please send message.
Posted on Jan 26, 2009
I have the same problems, did you get a tip?
Kind regards Marryan
Posted on Jul 12, 2008
I've fixed many of these, almost always needs the output ic RNS-704D-65. ( I think that's the part #) not cheap! Before taking it to repair disconnect all the speakers and turn it on If F-61 still comes up it probably needs it.
Posted on Jan 10, 2009
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Apr 20, 2011 | Panasonic SC-HT70 System
F61 usually means the amp has detected a short or has a microprocessor error.
Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.
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