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Veren Senior Member
Joined: 30 Aug 2012 Posts: 343 Location: South Africa
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Posted: Sat Sep 17, 2022 5:21 pm Post subject: PA3X - Right channel lower than left |
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Hi All
Not sure if anyone having this issue
I have used this keyboard very seldom over the years and have now noticed that audio from output left and right is heavier on the left channel
I have swopped out cables, balanced vs unbalanced, tried into audio interfaces, computers etc and its the same.
When you swop the channels around then the issue is also reversed (right heavier)
I have then selected output to be output 1 and 2 and although no MAX/Waves, the sound is pretty much equal.
Thanks
Last edited by Veren on Sun Sep 25, 2022 8:57 am; edited 1 time in total |
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Veren Senior Member
Joined: 30 Aug 2012 Posts: 343 Location: South Africa
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Posted: Sat Sep 24, 2022 8:51 pm Post subject: |
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Hi All
I have done a reload of OS and Resources and issue is still the same.
Bass is even lesser on the low output channel and does not sound so clear.
This board and brand is really turning out to be crap. |
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Veren Senior Member
Joined: 30 Aug 2012 Posts: 343 Location: South Africa
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Posted: Thu Oct 06, 2022 8:57 am Post subject: |
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Hi All
No feedback or experience from the forum? Has anyone recently metered the outputs to test/see fairly equal output from left and right apart from any stereo related effects?
thanks in advance |
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musiccankill Platinum Member
Joined: 30 May 2010 Posts: 884 Location: Greece
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Posted: Thu Oct 06, 2022 1:21 pm Post subject: |
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Hello!
The outputs are equal when the keyboard is in full working order.
It seems that yours has some issue ,most likely on the output board.
We are talking about a keyboard that is 8 to 11 years old (depending on the date of production) so it is more that logical for some of them to have some issues depending also on the use they had and the conditions they were stored at during all these years.
Still it is not a fault that is unfixable and should be a pretty cheap fix too even if you ll have to exchange the entire output board. _________________ ~~~The best keyboard for any player is the one that fits his/her needs!~~~
Korg keyboards owned now: PA5X 61 ,PA300, Triton extreme 61, Korg 707, Trinity plus |
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Veren Senior Member
Joined: 30 Aug 2012 Posts: 343 Location: South Africa
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Posted: Fri Oct 07, 2022 7:10 am Post subject: |
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Hi Musiccankill
Thanks for your response.
I'm not sure how to have same repaired here in South Africa (Korg distributor is very far away from where i live) nor do i know which board to replace as online pricing and the Rate of exchange makes the purchasing of these boards quite expensive.
This keyboard basically remained in a cabinet at home and hardly ever used.
thank you for the confirmation that outputs are equal. |
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Reuben Platinum Member
Joined: 31 Jan 2007 Posts: 1614 Location: Sydney, Australia
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Posted: Wed Oct 19, 2022 11:15 pm Post subject: |
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Hi Veren. My Pa3x has just started doing exactly the same - Left output much louder than the Right output.
My workaround is to connect my amp to the headphone out jack which doesn't suffer the same problem as the main Left/Right outs. I just used a stereo splitter plug to allow me to use the standard cables to the amp and the balance is now correct.
It seems the headphone amp inside the Pa3x is seperate to the main out amp so the problem is solved. _________________ Free SoundFonts: https://sites.google.com/site/soundfonts4u/
Free high quality Grand Piano for Korg Pa: http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=113029 |
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Veren Senior Member
Joined: 30 Aug 2012 Posts: 343 Location: South Africa
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Posted: Thu Oct 20, 2022 6:19 am Post subject: |
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Hi Reuben
Thank for the response and i will give it a shot but also wondering impact of audio quality out of headphones.
Thanks again |
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Reuben Platinum Member
Joined: 31 Jan 2007 Posts: 1614 Location: Sydney, Australia
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Posted: Sat Oct 22, 2022 5:45 am Post subject: |
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I've looked into this a bit further. While I don't have a fix (apart from using the headphone outs) I think I know what is going on.
There is some logic in the circuit playing up. When you have only L plugged in it is supposed to sum L and R to the Left channel for propper mono sound L+R. This it is still doing correctly. But when both L and R are plugged in, L is suppopsed to receive L only (and R to get R only) but what is happening is that the summing to L is still occuring and R level drops (I proved this by plugging in some headphones to R and hearing the drop when something is plugged into L. The same does not happen when done in reverse.
I've opened it up and couldn't see any obvious mechanical problem (Like one of the TRS contacts not touching properly) so I'm suspecting its a circuit problem. _________________ Free SoundFonts: https://sites.google.com/site/soundfonts4u/
Free high quality Grand Piano for Korg Pa: http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=113029 |
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Reuben Platinum Member
Joined: 31 Jan 2007 Posts: 1614 Location: Sydney, Australia
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