Keyboard and Master Oscillator tuning problems
2015-07-10 by kogz23@...
Now I am just trying to get the thing in tune, will troubleshoot the joystick later.
Following the service manual master oscillator procedure I can not get as high as -1oct C. The highest I can get is -1oct B. As well as this there is a problem with a massive drop of pitch (several octaves so it sounds like a crackle) for the first 4 keys hit. The next 4 sound fine, then the pattern starts again. It is not specific to any key, just the order in which they are hit. Hitting the same key twice doesn't effect the counting. I hope this makes sense!
I'm getting the correct +/-5V. Any ideas where to look? I wanna get this baby back to full life!
Thanks
Al
Following the service manual master oscillator procedure I can not get as high as -1oct C. The highest I can get is -1oct B. As well as this there is a problem with a massive drop of pitch (several octaves so it sounds like a crackle) for the first 4 keys hit. The next 4 sound fine, then the pattern starts again. It is not specific to any key, just the order in which they are hit. Hitting the same key twice doesn't effect the counting. I hope this makes sense!
I'm getting the correct +/-5V. Any ideas where to look? I wanna get this baby back to full life!
Thanks
Al