Left Channel not working

Perhaps you must check out wires for speakers and contacts on receiver and speaker.

If none of your speakers gives any sound, perhaps you pressed the mute button on the remote control?
Make sure you have a source selected, that will give sound. Choose a low volume, before switching anything. You can destroy your speakers, when switching on with full volume.
If some speakers work, and only the surround does not work. check if you have surround sound as input. If you only feed 2 channels you can't expect to hear more than 2 channels.

Check both your input(rca) and output connections on the inside of the amp for any looseness or damage, solder connections and so forth.. However I think your power/output transistor(s) are burnt in the left channel

your question depends on how good you are at electronic diagnosis (symptom diagnosis) and how adept you are at removing and installing electronc components. first you have to determine why the amplifier has stopped working on the left channel. Make sure that the problem isn't a simple one, take the speakers off the right side and hook them to the left side and see if you get sound. If you do,, then the problem is the left speaker or left speaker wire. If you don't get sound then tyr taking the input that feeds the right channel and pluggin it into the left channel and listen for sound, if you get sound now the problem was the signal from your source not being sent down the left side.
If it still doesn't work you need to move inside the amplfier, but first, get close to the back of the amp and give a sniff, do you smell anything (a pungent burnt wire or rubber smell) if you do, the the chances are good that some components have burned out. Do you recall having a shorted speaker wire on the left side? shorted speaker wires are notorious (especailly older equipment) for burning out the final amplifer stage. If this was an expensive amp it might be worth fixing, if its not worth much then maybe you should consider religating it to use as a monophonic amplifier (one channel) you could use it to power a sub woofer in a hibryd stereo or surround sound system.
I don't know what more I can tell you at this point. If you go through the steps I outlined, and want to tell me the result I shall be glad to respond and maybe give you another direction to head in. good luck and I'm glad you are adventruous enough to want to try.

If you have checked the speakers and wiring, the right channel has a audio driver or output problem, which explains the low volume, static, and distortion. A service technician will be required to fix the receiver so it will balance the left side.

A few things can cause this to happen. First we should check the computer. Take a pair of headphones or other speak set and check if sound comes from both sides. If to then the computer output is correct, else the computer is channeled to output to one side.

To change sound settings, if this is windows, go to your control panel and look for sounds option. In there you can change speaker settings, change volumes. On the volume control you can balance the speaker output. center the slider to make both correct.

If sound is coming from the PC correctly with a test object you will need to check your speakers for a fade option, not many have this it is just a suggestion. If no fade option exists, make sure the plug is totally seated. Improperly seated plugs will cause only 1 channel to be outputted or none.

If all the above does not help then check the cabled leading form the computer to speakers for damage as well as checking the wire between the left and right speakers for damage. Many times the output lead from the right to he left gets damaged from stress or other things and will stop output. Wiggle and pull the wire gently in each direction if they don't physically look damaged to see if sound is produced. if it is then the wire is internally damaged or loose from the speaker.

good luck

First, swap the speakers to see if it stays with the speaker or the amp channel.

Second, disregard the throretical ability of any speaker to handle any amplifier's maximum output. Amp ratings are at a certain power output with a certain amount of distortion. Turn the volume a click higher and power output might rise just a tad but distortion starts to go ballistic. Continue and you get total high current garbage. Clipping (high DC output) will kill any speaker.

Since it seems to go away, I doubt the speaker is damaged, unless torn speaker cone or burnt voice coil can self-repair in a few minutes every time.

Hey ajn1n1 we need to fine where the tinnyness is coming from Lets do a test shall we,

hook up your voice matched polks to your front left and right speaker outputs on your amp to see how they sound as mains. if you hear tinny then its the speakers. sometimes speaker need to be broken in a bit.

hook up your main front left and right speakers to your rear outputs. if you hear the tinnyness then its the output of that channel on the amp or a setting. Newer amps let you change speaker sizes in the menu so that it can change over the crossover for that channel.

The distortion might be caused by a resistor. The loss of volume could be the capacitors, but you could try injecting signals into the transistors to see if any has gone. They can cause the distortion and loss of signal. If you apply a soldering iron to any part it will heat up quicker, or you could also use a hairdryer for the whole thing. You can also get a freeze spray that cools things that have heat sensitive faults (available from electronic parts shops).

1. connect:Both Ground (copper wires) with Green wire
2. Connect Red with Blue and
3. Connect White with Yellow
This will give Stereo Output.