By diggy
Tue Oct 13, 2015 5:47 pm
First big up to this community and all contributors, i am a mpc-60 mk1 user and found lots of info here.
but now i'm trying to fix my buddy's mpc 3000.
symptoms: randomly, after a few hours or minutes of normal operation the mpc freeze up, screen becomes all black pixels and most buttons led light up.
i've seen a few people mention this issues on here but didn't find a definitive answer.
Some peeps say it was faulty ribbon connection or chip badly seated, cold or cracked solder joint, power supply issue.
I am ok with electronics but lack experience with digital or mpcs, i mostly build preamps, power supplys etc.
So far, I checked and cleaned a few ribbons with de-oxit, checked they were well plugged. checked mis-seated ic's, inspected the power supply for cracked solder point but none, measured the power supply caps with an ESR meter and they all seem correct (without unsoldering tho).
If some of y'all had that issue and could give me more info that would be realy appreciated. What exactly was your problem? which ribbon? or if it was the power supply, what was wrong with it?
Thanks alot for the help.
but now i'm trying to fix my buddy's mpc 3000.
symptoms: randomly, after a few hours or minutes of normal operation the mpc freeze up, screen becomes all black pixels and most buttons led light up.
i've seen a few people mention this issues on here but didn't find a definitive answer.
Some peeps say it was faulty ribbon connection or chip badly seated, cold or cracked solder joint, power supply issue.
I am ok with electronics but lack experience with digital or mpcs, i mostly build preamps, power supplys etc.
So far, I checked and cleaned a few ribbons with de-oxit, checked they were well plugged. checked mis-seated ic's, inspected the power supply for cracked solder point but none, measured the power supply caps with an ESR meter and they all seem correct (without unsoldering tho).
If some of y'all had that issue and could give me more info that would be realy appreciated. What exactly was your problem? which ribbon? or if it was the power supply, what was wrong with it?
Thanks alot for the help.