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Harman kardon hk 6800 protection on - Audio Players & Recorders

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: I have a Harman Kardon

want to buy a 710 with a 750 amp in working order
contact mikris2000@hotmail.com

Posted on Sep 06, 2008

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smarthome2
  • 1114 Answers

SOURCE: I keep getting a messasge

Disconnect all your speakers at the receiver, then turn the receiver back on. Turn on CD/DVD/Cable etc, then turn up the volume, if it does Not say "protect" you know the problem is in a speaker or a wire. If all goes well, re connect one speaker at a time with the receiver off, then turn on, turn up volume. Repeat until all connected or receiver goes back into protection. Once you find the bad wire/speaker, disconnect the bad wire at the receiver, then reconnect the remaining wires and test again. Now, disconnect the wire at the speaker causing the problem and reconnect it at the receiver. Make sure the wires are separated at the speaker side and; more importantly, cleanly connected at the receiver. If you have any freyed wires at the receiver, cut and strip, then twist the braid neatly. There should only be 1/2" of stripped wire, enough to fit under the terminal when you screw it down. Now, turn on the receiver and test again. If it does not go into protection, reconnect the speaker and test again. If it goes into protection at this point, you know its a speaker problem. If possible, disassemble the speaker to look at the internal wiring, if it looks good, look for a crossover network; this will look like a small printed circuit board. If it's really dusty, use some "dust off" and spray away the dust. look at the circuitry for visible damage, ie. brown or black spots. If you see them, there's your problem and the speaker needs repaired or replaced. To double check, you can meter the speaker for resistance. If your multimeter is digital and says 1..... it's a short. If it analog with a needle, it'll peg to the right. This is a very common problem. Hope this helps

Posted on Jun 11, 2009

  • 382 Answers

SOURCE: Harman Kardon HK 3270. The receiver looses the

I believe it is actually a memory capacitor that has to be replaced. It is soldered directly into the board and requires quite a bit of know-how to replace.

Hope this helps,

Thanks,

Posted on Jan 20, 2010

  • 569 Answers

SOURCE: My Harman Kardon HK 3370 automatically shuts off

Overheating?

Do you have it in a well ventillated position? It needs air supply top and bottom.

Posted on Mar 06, 2010

  • 29 Answers

SOURCE: Will Bi-wiring these speakers give

Hi gregorygoff
This speaker is already having its own crossover PCB inside the box, the xover frequencies are all set as per the speaker's response. So, there will be no point making it Bi-wired.

Posted on Dec 16, 2010

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1 Answer

Where to buy transistor for hk3480 part num 328 kca3114


Hello,

Are you sure that is the part number? The HK-3480 uses a KTC3114A and is quite easy to find. Q317 and Q318 in your receiver.

Make sure you see the numbers correctly.

Jan 16, 2015 | Harmon Kardon Harman Kardon Harman/kardon...

1 Answer

Why Harman Kardo HK 3490 goes into DSP voltage protect mode


This amplifier can go into protection if one of the low ohm resistors on the power module that is soldered to the transformer is defect. Check out R951 and R952, they are both 0R47 (0,47ohm). They are often broken and measure some kilo ohms.

Apr 29, 2014 | Harman Kardon HK 3490

2 Answers

Hk 3490 receiver on protection mode....what it means and how to correct that


You can try a factory reset after checking your speaker wires for shorts. The procedure is in your owner's manual. This will most likely not resolve your issue. If you need further assistance, or would like to inquire about repairing your Harman Kardon, please visit my website at audioserviceclinic.com and contact me there. BTW, I worked for Harman, as Technical Support for all Harman, JBL and Infinity products.Thank you.

Apr 07, 2014 | Harman Multimedia Harman Kardon HK 3490...

1 Answer

Hk 990 hot and protection


Check the load your asking the amp to drive.

Jan 13, 2014 | Harman Kardon Harman HK 990 Amplifier

1 Answer

Harman Kardon HK 3250 Receiver- how can I connect my turntable? there is no PHONO input


These depends on what model of turntable you have .

On most it can be connected on the inputs you have mentioned ,

If only , a RIAA preamp is included in it.

You may need one, if it doesnt have,


sample phono preamp:

Phonopreamps.com Home Page

can also be connected to Aux or Tape

Oct 08, 2012 | Harman Kardon HK 3250 Receiver

1 Answer

Fiber Optic input


No gots. The 3485 is pre-digital stereo-only.

From the manual, page 19

"You may have observed that the HK 3485 is not equipped with digital audio inputs or surround sound decoding. If you prefer the complete home theater experience, you may wish to consider purchasing a fullfeatured Harman Kardon AVR Series audio/video receiver. However, we hope you will find that using a DVD player with the HK 3485 in smaller settings, such as a bedroom or den, surpasses the audio performance of most televisions, including those with onboard stereo speakers."

Apr 13, 2010 | Harman Kardon AVR 240 Receiver

1 Answer

Reciver goes into protect mode as soon as I turn it on.


Remove speaker wires and try again. If it still goes into protect mode, the problem is internal...shorted power transistors or some other fault. Check fuses also.

Apr 01, 2010 | Harman Kardon HK 3480 Receiver

1 Answer

Harman kardon avr 140 - all displays work but no sound


I have an HK AVR140 all of the displays work, even shows when a digital connection from the Blu-Ray player is connected but no audio comes from the speakers! I found some information that HK does not have DC protection so when there is a problem muting Circuit is initiated on the main Amp. I called HK and they want me to send it in to a service dept that is not close at all. Any ideas? Or is there a way to by-pass the muting circuit somehow?

Sep 08, 2009 | Harman Kardon AVR 140 Receiver

1 Answer

Amplifier/receiver switches off systematically after a few second of use


Sounds like a bad output channel is causing it to go into protect mode. Time to see a repair tech.

May 01, 2007 | Harman Kardon HK 3480 Receiver

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