Question about Harman Kardon Audio Players & Recorders

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I have a Harman kardon 1700Avr that is stuck in protect mode, Is there anyway to bypass or reset it? Thanks....

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1 Answer

Lawrence Oravetz

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  • Harman Kardon Master
  • 10,543 Answers

It's in the protect mode because of a component failure inside. It needs to be repaired to get out of the protect mode.

Posted on Jan 02, 2016

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5 Related Answers

Anonymous

  • 2 Answers

SOURCE: stuck in protect mode

i believe protect mode is because you have the wrong impedence speakers, they are too low (4 ohm? 6 ohm?) it chols work with 8 ohm speakers

Posted on Dec 11, 2008

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melnatividad

  • 4 Answers

SOURCE: I have a Harman Kardon AVR 235 Receiver that go's into Protect

To avoid making the avr go into protect mode when you power up your Hafler 4000 that is connected in the avr's pre-out, you must power up the set up in the correct sequence.

1. Turn off your avr
2. Connect Hafler 4000 to the avr's pre-out it it is not yet connected
3. Turn on your Hafler 4000. The avr will not go into protect mode becasue of the transients from the Hafler because it is still not powered on.
4. Turn on you avr. There should be no more transients from the Hafler at this stage unless it is not functioning correctly, so the avr shouldno longer go into protect mode.

Posted on Dec 16, 2008

Anonymous

  • 2 Answers

SOURCE: My Harman Kardon receiver (

I used the live chat and the problem was resolved.
Usually the problem are strands of speaker wires which cause shorting and protection shuts off the receiver in order to prevent damage. There was one speaker that I repositioned recently which was causing shorting. I twisted the wires and tightened them in place and my receiver has been working w/o a glitch. I was lucky that I did not have to check all the wire strands on the receiver and all the speakers.
Problem solved and I learned valuable lesson.

Posted on Dec 28, 2008

Anonymous

  • 1 Answer

SOURCE: My Harman/Kardon AVR 140 is stuck on stand by mode

Try unplug the power. Wait a few minutes. Reconnect the power.

Posted on Jul 25, 2010

AJIN G

Electro Med Services

  • 6694 Answers

SOURCE: Harman Kardon receiver in protect mode. Removed

hi,

AV receivers shows protect mode , when there is a hardware fault in side it. Its a warning that some thing is wrong.
Noramlly AV receivers show this when any of the output amplifier get some problem. there are six amplifiers in this AV receiver. May occur when the output diver transistors of any of the amplifier become shorted. if the output transistor get shorted this will lead to flow of current through the speakers. To prevent this there is a protection circuit for each channels. One combined output of this protection circuit is connected to the system control. when the any of the output amplifier fails, the protection circuit detects it and switch of the speaker and sent data to the system control. when the system control get this data it will give a warning to the customer through display that PROTECT.
You have to check the amplifier.
for that you need digital multimeter,soledring iron screwdrivers etc
open the amplifier , then power it on. connect the negative terminal of the multimeter any where in the chase( metal body of the amplifer). then connect the positive terminal to all the output transistors emitter pin one by one . the voltage should be bellow 0.5V. If any of the emitter of the transistor shows voltage more than 0.5V., then that amplifier stage is faulty. Remove the transistors and check it. if it is shot then replace with a new one.
after replacing the transistors do not power up the amplifier directly from the main. You have to put a bulb of 60 watts in serial.
You can do this easily remove the mains fuse. put the bulb in a holder. now you have to wire from the holder. connect one of it to the one end of the fuse holder and the other wire to the other end of the fuse holder. Why using a bulb is, if there is any further problem in the amplifier stage on which the transistors replaced, there is a possibility of the new transistor get damage. if we use a bulb in serial with its mains supply ,when any overload in the amplifier occur the bulb will drop the current, by lighting itself.
After connecting the bulb in serious power on the amplifier. watch the bulb. It should light for one or two second and go dim . if so check the display, is there is protect mode is on or not . if not and come back to normal operation ,then remove the power , remove the bulb insert fuse and check
connect the power and check.
If the bulb shows bright light then there is some component also faulty in the same amplifier. after removing the power you have to check again the amplifier stage of which the transistor is replaced, for any other faulty components.
ok

Posted on Feb 12, 2011

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1 Answer

Why is it in standby mode only?


Hi
Harman Kardon is in STBY mode because its in protect mode
it will not start until u fix the problem
so, what is the model number for your Harman Kardon .!

Regards

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Hi
what is the Model number for your Device ?
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Hi
Try this.
To reset the AVR's processor:
1. Press the front-panel Standby/On switch for more than three seconds to turn the AVR
off (the Power Indicator will turn amber).
2. Press and hold the front-panel Surround Modes button for at least 5 seconds until the
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NOTE: After performing a processor reset, wait at least 1 minute before pressing any
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Good Luck
Happy to help

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1 Answer

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Hi it is seem there is no output from your device. Please check the circuit components and wires for malfunction in your Kardon then. Regards

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There is an internal reset switch mounted on the transformer board. Open the unit, look at the boards attached to the transformer, the pushbutton is facing up. Measure the voltage on the 2 pins of the switch. If it is a logic low, the switch is partially shorted. Replace the switch or just cut the jumper wire just below thw switch. When this switch fails, it constantly resets the receiver and stops it from powering up. It does not fix a protection mode problem.

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1 Answer

I have a Harman Kardon AVR 235 Receiver that go's into Protect


To avoid making the avr go into protect mode when you power up your Hafler 4000 that is connected in the avr's pre-out, you must power up the set up in the correct sequence.

1. Turn off your avr
2. Connect Hafler 4000 to the avr's pre-out it it is not yet connected
3. Turn on your Hafler 4000. The avr will not go into protect mode becasue of the transients from the Hafler because it is still not powered on.
4. Turn on you avr. There should be no more transients from the Hafler at this stage unless it is not functioning correctly, so the avr shouldno longer go into protect mode.

Dec 08, 2008 | Harman Kardon AVR 235 Receiver

1 Answer

Harman Kardon AVR35


check that your speaker wires are connected properly, and none of the wires are touching. if this dosent work hold the sur mode and tune mode at the same time with the unit off(in stand by mode) and this will reset the receiver

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1 Answer

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Hi Javis. This is perfectly normal ! This mode change is done because the receiver auto detects the digital audio signal and sets the receiver's DSP to decode the signal correctly. You can go into the OSD menu to bypass the auto detection of it, but it's not recommended at all ! You're getting the best audio quality by doing so. Thanks ! cheebster.

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