Casio Collectors

Hi Graham,

I replaced all electrolytics on the surface mount boards. I had to - mine were at the point where if I just touched them, they would fall off (made removal quite easy :). The only board I did not do was the midi and PSU board, which is through hole.

I am playing through a guitar amp. The midi sounds are MUCH louder than the guitar sounds, so perhaps I have an issue on that board. Maybe it’s that relay that feeds the mix. But that wouldn’t really explain why a good number of the synth sounds sound the same (unless the distortion is somehow masking the differences).

I don’t really understand what the calibration does - but hopefully that will clear up the last trigger issue.

best,

DT




> On Jun 23, 2015, at 3:42 AM, gmeredith1@... [casiocollectors] <casiocollectors@yahoogroups.com.au> wrote:
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> The EPROM should be fine, they're bullet proof. What are you running the synth output into? A guitar amp, mixer etc? The volume level out of the synth/guitar mix socket will be roughly the same as a guitar output level - a fair bit quieter than a normal line level synth.
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> Have you replaced ALL the capacitors on ALL of the boards (including the big main synth board, not just the rectangle string trigger boards)? Synth sound related issues will relate to the main synth board, if all things are equal and all strings are triggering properly. There is a capacitor on the synth board that I had to replace.
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> Make sure you replace all of the caps on both trigger boards - people often stop at the uppermost board because it resolved their problem but the second board also affects triggering levels and can contribute to a pseudo distorted sound. Do the lot. I did and it fixed all of the sound and triggering level problems.
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> Cheers, Graham
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