Question about Harman Kardon SIGNATURE 2.1 Amplifier

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I just hooked up my harmon Kardon 2.1 amp after moving and when I fired it up instead of warming up and the indicator light turning green. It turned orange and pulsed red. I could here the amp relay kicking in and out

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Check the speakers, make sure no starnds of wire are touching ony of the other terminals. Disconnect one speaker at a time and turn on the unit to see when and if the unit stops going in to protect mode. When it and if it doest start to stay on then you have removed the bad spkr. Unhook all of then and hook up the bad one only to verify that is whats causing ur problem...

Posted on Jun 05, 2010

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Posted on Jan 02, 2017

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Harmon kardon hk3270 shuts off after only being on about 10 sec


Disconnect speakers and wires. Bad wiring or defective speakers may be loading the amp down and causing the protection circuits inside to disconnect (no sound). If the HK is heating up (beyond what you perceive as normal) with no wires or speakers connected then you have a problem requiring expert repair.

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We are hooking up our harman kardon avr 2600. does the pvr & dvd player go in to the receiver then out to the tv?


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Mar 13, 2011 | Harman Kardon Audio Players & Recorders

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Just bought a Sharp LED TV and there is a slight delay between hearing sound and seeing lips move. Have cable box hooked up to tv by HDMI and have cable box hooked to AVR (Harmon Kardon AVR125) by optical...


Hi if there is an optical out on the television i would use that direct to your Harmon Kardon AVR 125, the sound would be in sync with picture, as the source is the same.

Jan 31, 2011 | Harman Kardon AVR 125 Receiver

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Hi there, our amp is giving us very low sound output even when volume is turned up to maximum volume. We have been unable to find the remote and are wondering if the remote was turned right down would that...


I'd look at the front panel for the Mute Button and the Mute Indicator, but turn the volume down for any further investigations. If you can't hera the sound at 1/2 volume, it ain't there. No sense risking a sudden volume surge that will kill your speakers when you finally find the problem.

http://www.retrevo.com/support/Harman-Kardon-HK3270-Receivers-manual/id/386bh430/t/2/

Also check the T-Mon Indicator. If it;s on you have the Tape selcted for listening instead of a source.

Volume/Mute Indicator: This

indicator will glow green when the

HK3270 is turned on. Its position

will enable you to judge the relative

volume of the unit even when the

speakers are muted or turned off.

When the indicator is pointing

towards the left, at an "8 o'clock"

position, the volume is low; when

it is pointing to the right, as in a

"3 o'clock" position, the volume is

loud. When the unit has been muted,

pressing the Mute button ïâthe
indicator will flash

Dec 26, 2010 | Harman Kardon HK 3270

1 Answer

The volume doesn't turn up on my sony


on my harmon kardon there are 2 RCA pre-amp ports. if you're not using an external amp then you need 2 really short RCA cables to connect the pre-amp ports to the RCA 'in' ports next to them. In essence the built-in amp isn't hooked up from the factory-you need to 'jump' it with 2 RCA cables. and no, my $350 harmon receiver didn't come with those little jumpers but it did come with a pair of 3 foot RCA cables that I had to ravel up with a twist tie to keep out of the way of all my other wires. hope this is similar to your issue. also make sure the speaker buttons are selected appropriately. just take some time to read EVERY label on the back of your receiver-there's a lot to read in the owner's manual and there may be something you simply overlooked or forgot about.

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Hooking up an amp


plug eash units sound in red whites from dvd tv main out the set speaker wires in place front ch a ok turn it on make sure ch a speakers on only select corect video input dvd ect turn it up

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Was using the harmon kardon avr 225 receiver and the front panel went out. .... screen display of the channel number, volume, or menu item does not work. ...


Try hooking up a yellow video wire from the back of the AVR 225 Monitor out. Should be at the end of the 7 or 8 yellow video ports on the back of the stereo. Next plug the other end into a yellow video in on a t.v. Get your remote, (Harmon/Kardon) and make sure the t.v. is on the correct video input and hit the OSD(on screen display) button on your harmon remote. There should be a setting in there that says VFD under ADVANCED menu option that allows for turning the front of your stereo lights on and off and dimming them half way also. OFF/HALF/FULL are the 3 options I believe.

If this doesnt solve it your display may have crapped out on you.

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