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HK 3485 in protect mode - Audio Players & Recorders

Posted by Anonymous on

4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 4234 Answers

SOURCE: HK AVR-247 protect mode

This is an indication of an internal problem. Typically this is shorted output transistors. Expect a parts cost in the $25-$40 range for this repair.

Dan

Posted on Apr 06, 2010

dunnbiker
  • 8546 Answers

SOURCE: 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."

Posted on Apr 13, 2010

  • 41 Answers

SOURCE: HK 3370 turned into protection

turn unit off using main power button, hold down t-mon and cd buttons at same time as switching main switch on should power up and show reset on the display for a short time then dhould go to standby this has reset unit and should now be ok

Posted on Dec 27, 2011

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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

1 Answer

Protection mode on HK Festival 60


The power surge may have killed the power supply on the unit
If you have home insurance , see if your policy covers it
If not, it would be too costly to service ( Over $100)

Dec 21, 2013 | Harman Kardon Audio Players & Recorders

1 Answer

HK 3370 turned into protection mode after pluging in a playing iphone. Happened more than one hour ago but hk3370's power light is still red. How do I get this thing out of the protection mode?


turn unit off using main power button, hold down t-mon and cd buttons at same time as switching main switch on should power up and show reset on the display for a short time then dhould go to standby this has reset unit and should now be ok

Jan 10, 2011 | Harman Kardon HK 3370 Receiver

1 Answer

Will not turn on. Message Protect


audi amplifier IC,s burned need to replace them

Jun 05, 2010 | Harman Kardon HK 3480 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

HK AVR-247 protect mode


This is an indication of an internal problem. Typically this is shorted output transistors. Expect a parts cost in the $25-$40 range for this repair.

Dan

Apr 06, 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

4 Answers

Amp comes on and goes right into protection mode


Turn the reciever on for a second or two and then off before the protect mode shows up on the monitor. Repeat this step about five times and check to see if the reciever does not go into protect mode. If it does go into protect mode try it again. Dont know if this is the proper way to fix the reciever but it worked for me. Good Luck

Mar 09, 2008 | Audio Players & Recorders

1 Answer

Protect mode


have you ever been able to hear anything from this unit?

Jun 04, 2007 | Harman Kardon HK 3480 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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