dynacord powermate 1000 mk2 help needed

[shazza]

best start from the beginning problem ongoing for 12 months, intermittent problem with sound going all muddy could clear it a bit using individual and main eq but not fully, this would change mid gig sometimes fine at start then half hr in problem would start then go clear again then back, now besides that the effects are also playing up by this i mean i have to reduce the amount of fx by around half this is also intermittent however both problems happen more than not now, i have replaced all leads with new and tried with different speakers same problem, the reason i´m here is i am in spain and unable to locate a repairer, thanks

[km6xz]

I do not have the schematic in front of me but the symptoms sound like oxidizes normalled contacts on insert jacks. If you plug a jumper cable into the insert send and return the other end to the insert return jack, ,and the problem clears, use a little de-oxidizing chemical strayed into each jack and insert and removed a plug several times. There is Spain, the most common de-oxidizer will be CRC "KONTAKT 60". Other European makers include "Cramolin" R-5.

[shazza]

thanks for that i´ll give it a try this afternoon and report back

[shazza]

i´ve tried the above unsuccesfully however a guy i got the de oxidizer off says my problem could be caused by the local power supply as he knows of others who have had a similar problem, so would anyone know if my problems could be caused by the power supply current dropping