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Panasonic SC HT70

There are no obvious shorts on speaker line using original speakers good ventilation cooling fan working fault persists,with F61 obviously a temperature problem as it takes about an hour from cold to happen any further ideas??
Wallyw

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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.
Panasonic SC HT70 - 51d303e.jpg

Posted on Jul 17, 2008

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F61 problem panasonic HT-995


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 possible root cause for intermittent shutdown.

Jun 14, 2011 | Panasonic SC-HT995W System

2 Answers

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


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.

Jul 16, 2008 | Panasonic Audio Players & Recorders

1 Answer

Unit says error F61 then rings and shuts off ...


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.

Apr 20, 2011 | Panasonic SC-HT70 System

1 Answer

My panasonic stereo system SC-VK550. my cd is no open show in F61 Other not open my plyar what is this F61 How to my problem sholf how.


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.

Mar 15, 2011 | Panasonic SC-HT700 System

2 Answers

I am getting a F61 code on my display and my speakers are hooked up correctly.


F61 usually means the amp has detected a short.


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. Eure 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.

Mar 02, 2011 | Panasonic SC-HT940 System

1 Answer

We have a panasonic 1000w sc-pt660 and when we turn it on there is f61 on the screen and nothing works what could it be and how can i fix it


F61 usually means the amp has detected a short.


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.


Check for loose speaker connections as a root cause for intermittent shutdown.

Feb 26, 2011 | Panasonic SC-PT660 Theater System

1 Answer

Turn on dvd panasonic sc-ht440 the display see me f61


Hi, F61 is and amp error code. probably needs an output ic. could be a shorted speaker or bad cooling fan. Disconnect all speakers and turn it on. if the fans run and it still displays f61 then odds are very good an amp ic is bad.'''Hope it helped.

Have a nice day..

Feb 24, 2011 | Panasonic SC-HT440 System

1 Answer

F61 0n diplay system does not work


F61 usually means the amp has detected a short.


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.


Check for loose speaker connections as a root cause for intermittent shutdown.

Feb 21, 2011 | Panasonic SC-AK600 CD Shelf System

1 Answer

F61 APEARS ON THE SCREEN


F61 usually means it has detecetd a short.

Generally speaking, an amp protects itself from heat, shorts and overloads. Check for shorted speaker connections.


Overloads can be from excessive periods of high output 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 hands-on tech.

Feb 03, 2011 | Panasonic SC-AK18 CD Shelf System

3 Answers

Turns off


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.

Dec 22, 2007 | Panasonic SC-HT70 System

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