Vintage Synth Repair

Hello all,

I own a DW 6000 from Korg, but when power up the synth, only a sweep frecuency down out from it.

No one LED or 7 segment display light is on.

I change the battery for a new one, change the three big capacitor on the supply board and all voltage regulators, 3 7805 and one 7905.

But nothing change no light, only sweep sound.

Any one can help me with this?

Thank you in advance

Roberto

Hi all,

At last, I bought a used CPU board, KLM 653, and replaced the old one in this synth.

Now my DW 6000 is return to life.

Thank you