One side not working

Try swapping the left side to the right. (Or vice versa) so the known side which works, is now on the output which wasn't. If the speakers still work, then I would say you have a problem with the other speaker or the cable. If the speaker which worked now doesn't when you swapped it, I would say the output from the amp has failed.

I need more info to correctly troubleshoot this. However my best guess from what your telling me is that its either the Audio jack on the Korg or the headphones. If everything else is working properly replace the headphones and the Audio outputs. Post again with more details if that does not work

Hello
Check the speaker of the right side first for damage. Connect it to left side and listen whether it works or not. If it works with left side, make sure that the audio output section circuit to the left side inside your amp has damaged and should be replaced. If the speker does not works with connecting it to the right side, make sure that the speaker has damaged. OK.

Hi,

Basically the wiring of the large harness corresponds to the pins like this.

Starting in the upper right hand corner and working down the right side from A12 down to A1.

1=Left rear output-red
2=Left rear output-blue
3=Right rear output-black
4=Right rear output-yellow
5=empty
6=Left front input-black
7=Left front input-yellow
8=Left rear input-orange
9=Left rear input-green
10=Amp 'ON'-blue&orange
11=empty
12=Amp sensor-black&orange

Back up to upper left hand corner on the large plug

13=Right front tweeter output-red
14=Right front tweeter output-blue
15=Left front tweet output-red
16=Left front tweeter output-blue
17=empty
18=Right front input-red
19=Right front input-white
20=Right rear input-blue
21=Right rear input-red
23=Right front sub (+) output-yellow
24=Right front sub (-) output-black

The small harness is the same above with the upper right position being pin 1 going down to pin 4 then back up to the top for pin 5 down to pin 8.

1=Memory Power-Lrg White
2=Amp Ground- Lrg Black
3=Left front sub (+)output-yellow
4=Left front sub (-) output-black
5=Left front mid (+) output-white
6=Left front mid (-) output-brown
7=Right front mid (-)output-brown
8=Right front mid (+) output-white


Hope this will help you.

Thank you

switch cables of the outputs to speaker if the fault transfer to the other side you will have an internal problem and you must pass it to service center.

you probably burned a trace in the event and unless u have the right equipment and tools you probably wont be able to fix it

audio board located inside the mainboard console to the right trace your speakers wire to bd, disconnect the three leads, 3 phillips screws, and examine bd for burns. If yes, ebay the board id for a replacement.

You have a blown channel. If you are experienced with electronics repair, use the right channel to assist in diagnosing the left. Both channels should be efectively identical. In most cases, the defective parts are the output transistors. You should be able to A/B the output amp sections.

Let me know if you need further assistance.
Dan

Can you swap speakers and see if the left working speaker works when plugged into the right output?

If it does, then your right speaker is bad or the right speaker cable/plug may be bad.

If the working left speaker doesn't work on the right output, then I would suspect a problem in the right channel audio amplifier.

Please let me know if I can be of further assistance to you.

Good luck!

- Jim

I think you are right. What cause this problem?