I just bought a JX3P and DW8000 locally for a very good price. Unfortunately both were sold in a million pieces. The JX was an easy rebuild/repair and it works great. The DW8000 not so much ;-) I the digital section seems OK (panel works, I loaded some patches using Sys Ex). If I crank the noise level up I can hear it but no waveform sound. This unit arrived with all the cables off, but I think I have them all on the right places. The SHEN* signal is "stuck" at around 2v. If I bring the signal lower using a resistor I can get some waveform sound, but the patches sound horrible (nonsense). Is there a common failure of that big chip that drives the waveform output? Any other ideas?
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Korg DW-8000 Repair
2010-06-27 by grantpbt