Hello,
I think you could first isolate the problem in a few steps:
1 - play the DW from an other device through midi
- No more pop : check the keyboard for bad connections or spilled soda traces
- Still poping : go to step 2
2 - play an auto-arpegio with no midi cable plugged:
- No more pop : check the midi board for ground leaks
- Still poping : go to step 3
3 - from schematics, pick-up the audio before the built-in pre-amp and connect it to guitar or microphone pre-amp
- No more pop : check the power transistors from the pre-amp
- Still poping : go to step 4
4 - play sounds without any delay effect (all parameters to zero)
- No more pop : check the built-in effect board (or use only external effect)
- Still popping : go to step 5
5 - now you are sure it comes from synthesis stage. Maybe you can locate some variable resistor that is set in a way that puts to much strain on the VCA or the VCF. Play a sound with slow VCA attack and fast VCF or the opposite. Test the resonance amount...etc. An electronic specialist would at this point check each transistor, capacitor and resistor while powered off. Some component can be simply dead. But this is getting too far for me...
Good luck
Bernard
--- In DW8000@yahoogroups.com, "Tomhikon" <got_hatchet@...> wrote:
>
> So does anyone think it may be a power supply issue? a chip issue? I can send audio clips to someone that may know if you like.
> I'm wondering if I should shell out money to try and get it fixed or sell it and buy another one.
> Thanks