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it is fault of cooling system, and sound output error, if fan is disconnected or not running F61 comes on screen then nothing happends, power sound ic is the main cause of the device, not only cleaning works, may need to change the the power sound out put ic.
this error comes when you keep your device powered all the time.
Definition: power is constant to components always on so it heats up.
look for condensers that are popped up or seems to be
change it with same type and voltage
Description of Error Code. F61
When the power is turned on, the unit is automatically
turned off. The power does not turn on.
· Cause, Troubleshooting
Power circuit system failure and/or direct current flown to
F61 usually means the amp has detected a short or a severe microprocessor error.
Generally speaking, an amp attempts to protect 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.
The F61 indicates protect mode. There is a problem with the output stage of the amplifier section and the unit shuts down to prevent further damage. This unit will require service of the amp section. You can try to contact Panasonic for the service manual.
The output amp pac is an RSN311W64D at a cost of $95 plus shipping.
I have the same problem and have found a couple of suggestions:
- check each speaker connection individually to find if one is not working correctly
- check that fan is working correctly. One user said that he had to open the machine and just add some oil on the turning wheel of the fan.
Hope any of these tips work. I will try it myself also.
F61 tells you its a power source problem according to the manual. to all F61 error it is very likley that the str470-050a reg legs desolderd and have broken away from the main body of the regulator giving you the f61 and shut down.