Question about Pioneer VSX-454 Receiver

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Left Speakers not working on A or B channel

The left speakers are not working on the A or B channel. Right speakers are fine. I cannot locate a fuse on the receiver.

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Re: Left Speakers not working on A or B channel

Have you tryed yet to switch the right speaker where the left one is? If it works then you know the speaker is bad. If you move the left speaker over to the right channel and it works and sound now comes out of the left speaker, you know there is a fault in the amp somehwre. If your not a tech and have not had any solid state equipment repair experience, then your going to have to have the amp serviced by a trained tech.. Good Luck

Posted on Oct 30, 2006

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I have a Pioneer VSX 452 receiver. I am trying to run a second set of speakers off the b channel and use the a and b switches on the front of the receiver. If only the a channel is depressed the two...

Thanks for the detailed explanation...
It seems to be there is a short or misplaced (+) (-) leads on the speaker connection you made..sometimes a tiny cable piece can make a short in between the leads and cause such problem..My recommendation is:
** take all the wires off..
** install only B speaker leads and test it..( make sure LEFT and RIGHT (+) and (-) leads properly
and individually connected to the right places on the is important...This causes balancing problem..
** if it works fine...
** than go ahead and install the A speaker leads..and test it..
if you do everything properly both A and B speakers should work fine as independently ...

Take care and if it succeeds please Remember to rate/vote and give me 4 Thumbs Up
for Helping out the Community :)

Hope this helps!

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Good day sir, Hi, your Philips receiver trouble can be any of the ff:
  1. your receiver left fuse is blown, check if it has a user fuse at the back. or
  2. your main IC amplifier for the left channel is bad. you need to replace that IC, but check first the wiring of the speakers.
  3. Check your receiver left speakers if it is producing a soft hum, to do this turn down the right channel, or adjusting the balance knob to the left, or simply remove the speaker connection of the right channel. place your ears on the left speaker as you adjust the volume up and down, do you hear a soft hum that goes up and down also? If yes the problem is on the source section before main amplification, usually the pre-amplifier stage, If you hear no hum at all. problem with the main left amplifier. The main amplifier is usually a single IC for both left and right channel, OR one IC amplifier for the left and one for the right, in both cases, replace the bad IC.

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The first thing I would check has already been done, the only other thing would be fuses. I am preety sure there is a protection fuse at ever channels output to protect against a dead short. I am sure you have already fixed this problem but I thought I would give it a try. Let me know what you found.

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If I understand you right, you have 7 speakers on 7 different channels.
When you have just 1 speaker connected it sounds fine, but any time you add more speakers it shuts down, or does it sound fine until you have all 7 of the speakers connected.

Bare with me, and we will figure this out. It is a very diificult job trying to troubleshoot something that is not in front of you.

After this post, it will be about an hour or so before you will hear from me again, I will be on my way home from work.

Is this a 5.1 surround system or is it listed as 7.1?

Do have have any speaker outputs with more than 1 speaker connected to it.

If this is a 5.1 system, do you have speakers connected to the "A and "B" speaker jacks?

What kind of speakers are they, and do they say on the back where you connect the speaker wire what ohm rating they are. Most speakers for your home are 8 ohms.

in case you were wondering what a 5.1 and a 7.1 system is:

the 5.1 system has front right, front left, center, rear right, rear left and the .1 is for the sub-woofer that is normally a RCA jack output on the back of the receiver

The 7.1 has all those same speaker outputs plus it has a surround back with right and left channel.

I will get back to you in about an hour or so.

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