Front left channel not as loud as the right...

[Shock]

So I fired up some Star Trek today on the ol' Blu-ray and I performed my pre-movie OCD test, and sent a test signal through all the channels to make sure they were working. Lately the rear right channel has been acting up and sometimes won't play any audio until i fiddle with the connections on the back.

So i notice the first set of pink noise on the left channel is pretty quiet, then the center and right channel are both substantially louder than the left.

The receiver in question is a quite old Panasonic SA-HE75. I also feel like I should point out sometimes the left channel is normal volume and sometimes it is not.

Does anyone have any idea what's going on? Is the left channel amp starting to fail?

 

[Nomo]

It sounds like you answered your own question.
If you need to fiddle with the connections then it either the cable or the connector itself.
Do you need to mess with the connection to the receiver? Try a different cable?

 

[dapack69]

The wires themselves could be corroded. If you have the cable length I would cut off for new ends on both sides.

 

[Shock]

The wires themselves could be corroded. If you have the cable length I would cut off for new ends on both sides.

I just put some new wire on them a few days ago to see if it would be help.

It sounds like you answered your own question.
If you need to fiddle with the connections then it either the cable or the connector itself.
Do you need to mess with the connection to the receiver? Try a different cable?

The fiddling with the rear right is because I'm using a 14 gauge wire, and the locking connector on the back can barely hold 16. So I'm not surprised it cuts outs.

I'm trying to make you guys tell me to buy a new receiver!

 

[Nomo]

I'm trying to make you guys tell me to buy a new receiver!

Subtle does work here

Umm, maybe you should buy a new receiver. Better?

 

[adwilk]

I think you should get a new receiver. Probably speakers too just to make sure. Get a universal remote, too. And a sub.

 

[dapack69]

I think your receiver is effecting you whole system and made everything obsolete.

Need a new TV 65" or bigger, speakers, BD player, the whole nine yards.

 

[Adam]

And while you're at it, get a haircut.

 

[Seth=L]

As mentioned at the top, it's probably the connectors or termination points. Since you pointed out you tried using new cables already it's most likely the termination points. Fixing it would probably be as simple as soldering a cold point. Those Panasonic receivers are quite touchy so it's surprising that all output has ceased. That model uses two primary IC output devices, making it unlikely the problem is caused by them. However a short on those Panasonic receivers typically sends the receiver into ghost mode where it turns on like normal but the secondary relays never close because of an "error". I'm surprised you haven't encountered this yet.

In any case a new receiver would definitely be in line.

 

[Shock]

So what you're all saying is I should buy a new receiver....damn damn damn.

 

[dapack69]

So what you're all saying is I should buy a new receiver....damn damn damn.

ummmmmm....yeap.

 

[popotoys]

So what you're all saying is I should buy a new receiver....damn damn damn.

Also, how big (or do you have) a dedicated HT room? Maybe a new house is in order first. Just add an extra 10 or 15 grand to the mortgage and be done with it.

 

[Halon451]

I think it's your sub.. causing some weird inductive kick to be sent back through the line level output for your sub, through the receiver and reverse biasing the left channel amp stages so they are cutting out...

I'm talking completely out of a$$ obviously, but that's my way of saying get a new sub to go along with that new receiver - might as well upgrade the speakers as well. Room treatments... new carpet... lighting... you get the gist. Chop chop.

 

[Halon451]

On a serious note, Shock - it does sound like the left channel is failing. I don't particularly think it's the connections alone in this case, as you've fiddled with them enough that you shouldn't have such a disparity between channels. Unless you've determined that you do get a change in output EVERY time you jiggle the wires in the back, then it's safe to say that's not the problem. Time for an upgrade my friend.

 

[Seth=L]

On a serious note, Shock - it does sound like the left channel is failing. I don't particularly think it's the connections alone in this case, as you've fiddled with them enough that you shouldn't have such a disparity between channels. Unless you've determined that you do get a change in output EVERY time you jiggle the wires in the back, then it's safe to say that's not the problem. Time for an upgrade my friend.

Either way it's time for an upgrade, that piece is old.