Question about Panasonic SC-HT740 System

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F61 When i power on this f61 error shows and then the power shuts off. What can i do?

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Output IC is defective.Not much to do except have the main unit serviced.Output IC is rather costly.Before taking it for service, disconnect all speakers and power on.In F61 comes up IC is definetly bad.If unit works reconnect 1 speaker at a time(with power off) and retest each time.Repair bad speaker .

Posted on Apr 05, 2008

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Posted on Jan 02, 2017

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The song is playing and running suddenly the song stops and the error msg when i restart my dvd. The error msg is F61 displays in Dvd's display. Please give a rply.


Hi ahamedfaisal,
Does F61 appear after a minute of playing or shuts down immediately after you power on the unit?
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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.

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AFTER A FEW SECONDS MY SYSTEM SHUT DOWN AND SHOWS ME F61 ON THE SCREEM


  1. AFTER A FEW SECONDS MY SISTEM SHUT DOWN AND SHOW ME F61 ON THE SCREEN

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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.

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Hello....
Isolate problem by disconnecting Amplifier ic (RSN),if f61 still appeares after disconnection of RSN ic ,than check voltage supply rails ,may be one of them has irregularities.
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1 Answer

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DIsconnect sound Amplifier ic (RSN).After removal of the ic if the unit works o.k offcourse without sound than replace ic.If still f61 than sound ic is o.k and check voltege regulators in power supply.You can check dc detect line if it gets activated.
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the problem is F61 is speaker protection mode on.
fault with your audio power amp section.
i can help you.
nuwan.

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