Question about Panasonic Home Theater System System

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Wont respond When i turn it on it says F61 then shuts off before it did this it made this wierd buzzing noise? What do i do please help

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  • Highteck Jan 20, 2009

    Same problem on Panasonic SA-AK78, changed the output IC501 and still F61 is there. I bought the electronic layout schematic, there is a small variation between the circuit I have and the one showed on the schematic.



    So I am still investigating this problem.



  • Highteck May 11, 2010

    And if the fan does not turn on power up??

    Power supply voltage flow is hard to follow as it goes to 3 PC board for either validation or then voltage reduction or regulation.





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Check that the fans are working they should start on power up. If they do its probably the output IC. (not cheap around $100) for the part.

Posted on Jan 19, 2009

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Won't turn over... just makes a clicking sound... and a wierd humming sound.


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What does f61 mean?


F61 is an error code.
It will automatically shuts down your unit.
This is very common on your unit.

Try to checked if the fan is working or not.
I have repaired some unit before, this is the caused why f61 appeared.
The symptom is shutting down the unit after a few minute.
If the fan is not working it will shuts off automatically to avoid further damaged to your output I.C.

If confirmed that the fan is working then I've suspect that your output I.C. is shorted.
This is quit technical and need to send to repair shop to isolate the faulty parts.
The output IC of your unit is RSN series and quite expensive.

Pls rate my help.

Thaks for using fixya...

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check the fan, if its dusty clean it then run the player. If it works, your in luck. If the fans are moving and f61 still shows up, the D-amp IC is shortened ( inside you will see IC 5000/IC5200 / IC 5300, these needs to be replaced) its the one by the big cooling fins (behind the rear fan)

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Jan 19, 2009 | Audio Players & Recorders

1 Answer

F61 error


If memory serves me correctly, the F61 message is teh shorthand for protect mode. There is a problem with the output section that is being detected. The unit shuts down to prevent additional damage to either the amp section or the speakers. I'll look up your specific model for more details. In the meantime, check the speaker wires to be sure that they are not frayed and crossed.

Dan

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2 Answers

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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.

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