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Panasonis SC HT70 Plays for about 1hour then comes up with F61 Fault code

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  • Wallace Webb Mar 12, 2013

    improving ventilation seemed to cure fault

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This fault code means the speaker cables may have shorted, or the speakers are not the correct resistance (ohms) Are you using the speakers that came with the unit? If not, make sure the ohms rating of the speakers you are using are the same as the factory speakers. If they are the same, the unit may just be overheating, make sure it is in a well ventilated area, and dust-free.

Posted on Jul 16, 2008

  • Jerrod J
    Jerrod J Jul 16, 2008

    Also, make sure the speakers are connected in the right place. Here is the operating manual for your stereo in PDF.

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F61 for SAHT70 = Power amplifier output error or power supply circuit error.

Posted on Jul 16, 2008

  • gopinath pasupathy Jul 16, 2008

    JUST CHECK THIS

    Supply voltage for IC501 (Power Amplifier).
    Approx. +60.0V dc at pins 3 & 20.
    Approx. -60.0V dc at pins 4 & 21.

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1 Answer

F61 FAULT CODE


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.

Aug 01, 2011 | Technics Audio & Video Receivers

1 Answer

Sa-ht545 error code f61- comes up upon statrting


F61 just equal 'power fault'
Generally a fault with either audio power amp ic (IC 501) or power supply ic IC 502.

As both said ICs get very got first remove bottom steel grill and with the power off and capacitors drained (shorted together with a low ohms resistor or leave unit powered down for a few hours) resolder the ICs legs if there are any signs of cracks aka dry solder joints.
Hope that helps.......

Jul 09, 2008 | Panasonic Audio & Video Receivers

3 Answers

Panasonic Dvd stereo system model number SA-VK960 power supply is defective. is it possible to repair?


Your Panasonic SA-VX uses a Switch Mode Power Supply ( SMPS ). Do not ever attempt to fix it yourself unless you are well versed in electronics. ou can damage the system seriously. Seek professional help.

Mar 10, 2011 | Audio & Video Receivers

1 Answer

I have a panasonic dvd player ser no dd6ca001386r model number sa-ht990 when it turns on it comes up with fault code f61 what does this mean also i have just had a fan replaced but both fans are working


Did the fan replacement follow the onset of an F61, too? Or did the F61 come on after the 'repair'? If theformer, I'd ask the techto take another swing at it; if the latter, I'd ask the tech what he did to wake up the new problem.


Generally speaking, an amp protects itself from heat, shorts and overloads 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.

Feb 19, 2011 | Panasonic Audio & Video Receivers

2 Answers

Hi All, I have Panasonic SC - VK 540 music system. It has gone to the authorized service station several times for the above mentioned error. But unfortunately they have not bee able to fix the problem....


The fault seems to be a main board issue in which the relay is clicking but not activating.
SInce you are not aware of the work done earlier it must be seen if this was a reset issue. so power off and try to reset- refer you manual in thelast column for reset in case of errors...may be holding the menu/selecctor while switching on.
You can also see if there is any dry points in the main board,a loose connector or a connection . press and reset all connections

Sep 24, 2010 | Audio & Video Receivers

1 Answer

I have Panasonic SC-AK750 Mini System and of late it keeps showing F61 on the screen before it switches off. do you know what it is


The F61 indicates protect mode. This means that a problem was detected inside and the unit shuts down to prevent further damage. This is usually the output amp pac or the regulator IC. The amp is attached to the heat sink in the rear of hte unit and should be marked RSNxxx.

Dan

Sep 11, 2008 | Panasonic Audio & Video Receivers

1 Answer

Panasonic SC HT70


The only other thing I can figure is bad electrolytic capacitors. When an electrolytic capacitor gets hot, it raises the ESR (equivalent series resistance), and the higher the ESR, the hotter the capacitor gets, so it is an endless loop until something stops working because of a power problem. If the stereo is under warranty, I would suggest getting it RMA'ed. If it is not under warranty and you are feeling adventurous, you can open it and see if any of the capacitors near the power supply are bloated or leaking electrolyte. If so, they need replacing. Easy soldering. Make sure and get the same rating capacitors if you are going to replace them. This is what ultra bad capacitors will look like, although failed capacitors don't always show visible signs of failure.
51d303e.jpg

Jul 17, 2008 | Audio & Video Receivers

2 Answers

Panasonic sa-ht995 will not work ...... when turned on it says hello.......then f61 then turns off again how do i fix this problem?


F61 in the user manual says , check your speaker connections if ok then see your dealer, the reason f61 comes up is a amplifier fault , most likely a blown audio amplifier ic is faulty, and needs replaceing by a compenent electronic technician.

Jul 09, 2008 | Audio & Video Receivers

1 Answer

Panasonic sc-ht440


Always be for ICs audio amplifiers damaged.

Apr 13, 2008 | Audio & Video Receivers

1 Answer

Panasonic stereo SA-PM28 displays fault code F61 then switches off


Hi dearnley1

The error code your unit is presenting relates to either a speaker cabling fault or a fault speaker. Sometimes, it is neither, and may be a fault inside the unit. Needless to say the unit is in protection moe to prevent more damage occurring. Check you speaker wiring for any short circuits or frayed wires. If all appears to be ok, disconnect the wires from the unit and see if it turns on and stays on then. If it still presents f61 with speakers and cable disconnected, then I am afraid that you may need to take the unit to a Kenwood service center near to you for an inspection . Good luck

regards
Graeme

Apr 06, 2008 | Audio & Video Receivers

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