Author |
Message |
Topic: SOLVED: Troubleshooting Microkorg edit param tracking |
aphelionz
Replies: 8
Views: 3145
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Forum: Korg MS2000 & microKorg Posted: Tue Mar 21, 2023 1:02 am Subject: SOLVED: Troubleshooting Microkorg edit param tracking |
OpAmp, you nailed it! I ordered two new knobs from Syntaur and some soldering time later everything works like a dream.
Thank you so much! |
Topic: SOLVED: Troubleshooting Microkorg edit param tracking |
aphelionz
Replies: 8
Views: 3145
|
Forum: Korg MS2000 & microKorg Posted: Tue Mar 14, 2023 12:31 am Subject: SOLVED: Troubleshooting Microkorg edit param tracking |
Thank you OpAmp 🙏
I'll explain the multimeter thing soon but in the meantime here is the test you described which also (imo) seems to implicate knob 3's capacitor
https://www.youtube.com ... |
Topic: SOLVED: Troubleshooting Microkorg edit param tracking |
aphelionz
Replies: 8
Views: 3145
|
Forum: Korg MS2000 & microKorg Posted: Mon Mar 13, 2023 12:04 am Subject: SOLVED: Troubleshooting Microkorg edit param tracking |
Let me ask - if C112, the capacitor on Knob 3 was defective, could it potentially cause this behavior?
I just connected my multimeter across the poles of the pots to the far end of the capacitors a ... |
Topic: SOLVED: Troubleshooting Microkorg edit param tracking |
aphelionz
Replies: 8
Views: 3145
|
Forum: Korg MS2000 & microKorg Posted: Sun Mar 12, 2023 11:45 pm Subject: SOLVED: Troubleshooting Microkorg edit param tracking |
Hey again OpAmp! Thanks for replying.
I'll check the capacitors now - regarding the knobs: I did apply some deoxit and while the knob action is very nice now, the tracking issue still remains.
I ... |
Topic: SOLVED: Troubleshooting Microkorg edit param tracking |
aphelionz
Replies: 8
Views: 3145
|
Forum: Korg MS2000 & microKorg Posted: Fri Mar 10, 2023 11:28 pm Subject: SOLVED: Troubleshooting Microkorg edit param tracking |
Hello again! Riding the [url=http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=128557]winning streak of fixing my first "as-is" Microkorg, I decided to try my luck again and pick up ano ... |
Topic: SOLVED: Troubleshooting Arp On/Off |
aphelionz
Replies: 8
Views: 2874
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Forum: Korg MS2000 & microKorg Posted: Fri Feb 17, 2023 10:21 pm Subject: SOLVED: Troubleshooting Arp On/Off |
That was it! The trace was bad. I wired a jumper cable in and that fixed the arp toggle. The unit is still pretty beat up cosmetically but it's fully functional now
Thank you OpAmp for all your ... |
Topic: SOLVED: Troubleshooting Arp On/Off |
aphelionz
Replies: 8
Views: 2874
|
Forum: Korg MS2000 & microKorg Posted: Fri Feb 17, 2023 1:06 am Subject: SOLVED: Troubleshooting Arp On/Off |
Ok, staring at this some more and trying to figure out more about what's going on (or not going on)
https://i.imgur.com/S3g3j2b.png
Am I correct in reading this schematic that one of the poles o ... |
Topic: SOLVED: Troubleshooting Arp On/Off |
aphelionz
Replies: 8
Views: 2874
|
Forum: Korg MS2000 & microKorg Posted: Wed Feb 15, 2023 11:45 pm Subject: SOLVED: Troubleshooting Arp On/Off |
Well, I got a multimeter with a diode test function and... for better or worse D16 seems to be functioning properly
What now? |
Topic: SOLVED: Troubleshooting Arp On/Off |
aphelionz
Replies: 8
Views: 2874
|
Forum: Korg MS2000 & microKorg Posted: Tue Feb 14, 2023 12:48 am Subject: SOLVED: Troubleshooting Arp On/Off |
Thanks for your reply. I downloaded the service manual.
Looks like I need to get a multimeter with a diode test function now! I did test the traces between the dpdt switch, the diode in question ( ... |
Topic: SOLVED: Troubleshooting Arp On/Off |
aphelionz
Replies: 8
Views: 2874
|
Forum: Korg MS2000 & microKorg Posted: Mon Feb 13, 2023 4:13 pm Subject: SOLVED: Troubleshooting Arp On/Off |
Hi there, I recently picked up a used "as-is" Microkorg and I love it! However, the arp toggle button doesn't seem to function. I'd love some help troubleshooting it if help is available.
... |
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