Greetings! I’m trying to help repair an electronic KORG SP300 stage piano, which is having very soft internal speaker volume. The slide potentiometer for master volume still affect the volume level from no volume to increasing volume when sliding, but it's still very soft even at the maximum level. The external line and phone out seems to be working fine.
Which component is likely giving the problem?
I’ve already tried swapping out most of the capacitors but the problem is still there.
Could the old slide potentiometer for the master volume be the problem? It does affect the volume level when adjusted, but just couldn’t get the loudness expected. I've difficulty sourcing for this slide potentiometer too, and would appreciate if someone can suggest what equivalent slide potentiometer I can use to replace it.
It's 45mm full length and about 30mm slide distance. .How can I test this potentiometer to see if it is the problem? Can I short its pin somehow to simulate the volume adjustment? (if it's the source of problem at all
Which component is likely giving the problem?
I’ve already tried swapping out most of the capacitors but the problem is still there.
Could the old slide potentiometer for the master volume be the problem? It does affect the volume level when adjusted, but just couldn’t get the loudness expected. I've difficulty sourcing for this slide potentiometer too, and would appreciate if someone can suggest what equivalent slide potentiometer I can use to replace it.
It's 45mm full length and about 30mm slide distance. .How can I test this potentiometer to see if it is the problem? Can I short its pin somehow to simulate the volume adjustment? (if it's the source of problem at all
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