Question about Panasonic SC-HT650 System

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Reading code f61

I try to power it up and it reads a code f61 and powers back down

Posted by Anonymous on

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Pop cover plug in with med to light pressure on the heat sink press down gently and push one way just a tad , press power , see how long to shut down. do same other direction. what you should find is that the solder connections are bad and need to be redone. this is not the first pan. that has had this problem, some of there other stereos do to.

Posted on Feb 25, 2015

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Posted on Jan 02, 2017

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  • 4234 Answers

SOURCE: sa-ht680 service manual

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.

Dan

Posted on Apr 09, 2008

  • 4234 Answers

SOURCE: SC-HT75

The output amp pac has a problem. The F61 is indicating that the unit is in protect mode. This is a mode where the output section is shutdown to prevent further damage. Figure on $65-$95 for parts.
Dan

Posted on May 19, 2008

dunnbiker
  • 8546 Answers

SOURCE: my dvd stereo system panasonic model SA DK2 , F61

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.

Posted on Feb 21, 2011

mlapres
  • 757 Answers

SOURCE: I have a panasonic blue ray player model number SA

There are two cooling fans on this unit. Fans like other motorized devices also get hot, I'm assuming that these fans have a thermal protection circuit for safety reasons.
Removing the unit chassis so that you can gain unobstructed access to both of the fans is a must. Once inside you will see that the blades and surrounding devices are coated in dust; the use of a simple commercial grade vacuum with a soft bristle brush tool will be the first step. It will be able to remove most of the gross filth.
Next, using a dry cotton swab, carefully navigate the tip of it all around all of the various electronic circuit components and pick up the most dust with it that you can.
The next thing is thorough cleaning of the fans; the dust is pasted on there pretty well you may have discovered by now. The cotton swab comes of good use there too. The fan blades are much more effective without the dust on there. Next, turn your attention to the fan blade shaft assembly where it attaches to the fan motor. Using your cotton swab and a toothbrush, get it as clean as possible. When finished with that, you will need a special lubricant that is a light weight machine oil. It is made by Liquid Wrench and is called super oil. One drop on the shaft which is immediately behind the fan blades although you can't see it, the oil will make it's way down in there, and a second drop on the bearing assembly. You will find that by searching the opposite end of the fan motor for what appears to be a small metal box, look at the rear of it and you'll see the tip end of the motor spindle. Put a drop of oil on it.
After you replace the chassis make sure that you when you return the player where you intend to operate that it always has at least 2 feet of open and unobstructed open air around it without any heat sources within that 2 feet clearance such as another heat producing AV device like an amp or a furnace duct, sleeping cat, etc....

Posted on Dec 18, 2011

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