Archive of the former Yahoo!Groups mailing list: Korg Poly800/EX800 Users

Hello Mike

yES this is a Poly MK2 that I have had for many years?

Did it have this problem from the moment you bought it?

No it worked good until one day ,it don' t I open it and: I saw the C cell battery leakage

Have you checked for battery leakage inside? (Especially the C cells).

I have battery leakage, i have to remove the battery and the support

Did you check the power supply rails? Check them all when you first power up and then again after 2 minutes or more? Do they drift across those two minutes?

 

Not yet i am going to check all the power supplies

Do you hear white noise (or pink noise) as the swooshing sound at power up? Or do you hear nothing at all at power up and you have to hit keys and the VCF cutoff sounds like it is increasing for those two minutes? (Slowly widening the sound until you hear the full range of harmonics).

yes i exclatly 

hear nothing at all at power up and I have to hit keys and the VCF cutoff sounds like it is increasing for those two minutes? (Slowly widening the sound until you hear the full range of harmonics).

Did your Poly work just fine with the mod's in place? Or, did you do the mod and then the problem occurred? Did you do the modding yourself?

yes the poly work fine with my moog slayer mod , the cutofff and resonance are ok.

I did the modding myself, sir !!

Does the sequencer work? Have you uploaded the factory patches? Are you able to edit sounds?

yes, since I change my tempo pot which was dead

I upload the patches, all seems to be fine

I am able to edit them

Does the EG3 work?

No the eg3 don't work , neither the VCF . I change the value of cutoff and resonance on the led screen without hearing any change , neither the e.g. int , neither the polarity.Only my mod gives me control on the filter !

Do the EG's for the individual DCO's work?

The ADSR seems to be good , except I hear only a "gate EG" on or off but i haven't all the values between.