Question about Harman Kardon HK 3370 Receiver

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Left channel don't work

Left channel don't play on the speakers nor on the headphone

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The IC in it is fied for the left channel.

Posted on Oct 29, 2012

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1 Answer

Left speaker not working when plugged into amplifier


If it works on the other channel, then you have a faulty amp. If the sound is good on headphones then the left power amp has gone. If not then you have a left pre-amp problem.
If the speaker doesn't work at all on any channel, then either there's a bad connection inside the speaker or one or more of the internal speakers have blown.

Feb 25, 2014 | Audio Players & Recorders

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Lost sound in left channel?


I presume you are playing a stereo cd. Plug some other device, like headphones in to see if the computer is putting out stereo. Use the same plug as the speaker system is plugged into.
I presume you have swapped the speakers to test them.
If the speakers work, and the headphones work, it's the amp.

Nov 26, 2013 | Klipsch Promedia 2.1 Thx Computer Speaker...

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Right speaker terminal not working - tested out both speakers and they work fine when independently tested on the left speaker terminal. Sony MHC GX45 Shelf System, 2 speakers and 1 sub.


If the sound is also dead on that channel on a pair of headphones. Then you have probably lost the main power amp for that channel. To be certain. With you headphones on, slide or turn the balance control so you can only hear the faulty channel. With some music playing turn up the volume. If you can hear "faintly" music playing then the pre-amp is OK and the power amp has gone.
The power amp will be located on a heat sink. It will consist of 4 transistors (2 for each channel) or one big device (or two) (an IC). If it is transistors you only need to replace the two for the right channel.

Aug 31, 2013 | Sony COMPLETE PWB, MP-45 Shelf System

1 Answer

Onkyo 545 one channel don't work


Use headphones or Computer Speakers
and plug in to your headphones jack.


If the audio is present on both channel , check your speaker system

or the jack circuits.


If symptoms are the same, follow the troubleshooting on the link

above.

Oct 09, 2012 | Onkyo TX-SV545 Receiver

1 Answer

I have a HD 203 .. the right side speaker is not giving any output , the left is still working though...so do i have to change the speaker or the wire's or it useless and i have 2 through them awa


have a friend come over with their phones and plug in. if the same problem persists its the amp and it blew that channel. no problems then get new phones save old ones for parts.

Sep 16, 2012 | Sennheiser HD203 Headphones

1 Answer

No sound on one channel


You don't name the product but general advice may help.

I presume you have proven the channel is dead by trying multiple sources, swapping a different speaker onto it and that the balance control is NOT all the way to one side; headphones don't work either and we're down to proving it's dead before you take it in to a tech, right?

There is the slighest chance that a common control may have developed a high-resistance or 'dead' spot and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.
If it still doesn't work you might want to prove if its a low-level signal loss or a high level amp failure.

One way would be to run an RCA cable pair from the Tape Out to any other device (even a TV with speakers) you might have that accepts an audio input. If IT can't detect receive the DEAD Channel you're losing it in the preamplifying or source selection stages.

If it CAN be played externally, the receiver is losing it on its way to or at the amplification stage. Further isolation might require hands-on technical expertise.

Jun 14, 2011 | Audio Players & Recorders

2 Answers

Speakers are ok but headphone is not working


OK. Speaker works/headphones don't! Sultanrajia, what is refering to! Audio Amp, play-back record, computer, radio, TV, all communication equipment. what. It could be broken wire on the headphone jack plug or it could the headphone aren't working. Maybe some bad wire in the headphone cable, faulty plugs.

By the way, do have a Night Visison optic devise that it can take a look into the night. Also, how does the spearkers and headphone work with the Night Vision Optics? stewbison

Apr 08, 2011 | Optics

1 Answer

One channel dead - Aiwa NSX-D5 (RX-N5K amp)


When you put your headphones in does it switch off the speakers? If it does it could be a faulty headphone jack.

Jun 14, 2010 | Audio Players & Recorders

1 Answer

I have an mp3 player that i want to hook up to my logitech x-540 speakers but when i do it only plays on the front, or rear speakers depending on which cord i plug it into, is there a way where i can use...


An MP3 player is a stereo device, meaning that it works on two channels - left and right. Therefore a 5.1 speaker system will only play on 2 speakers.

However, if you want to use rear speakers as well, just for the fun of it (you won't get any surround effects, both left speakers will play the left channel, and both right speakers the right channel) you can purchase a "headphone Y-adaptor", that normally allows two people to use two pairs of headphones on the same portable music device.
It has one headphone plug and two headphone sockets in parallel. Plug it into the player, and to the sockets plug the front and rear speaker cables :)

Please come back with a testimonial if helped :)

Dec 22, 2009 | Logitech X-540 Computer Speakers

1 Answer

AUDIO AMPLIFIER'S ONE CHANNEL DEAD


Hi there.
Check for shorted speaker wires on left channel. If not, disconnect speaker wires and check to see if headphone jack works. If left works, you may have a blown speaker. If left still doesn't work, left power amp blown.
Thanks
Paul

Jul 06, 2009 | Sony Audio Players & Recorders

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