By fatbit
Sat May 21, 2022 9:49 pm
Hi MPC experts! could you please help me with this issue?
My MPC60 stopped working while I was playing some external instrument through MPC60 sampling input.
At some point, I started smelling burnt. The sound I was monitoring fainted for a couple of seconds ( lack of bass and white noise) and then stopped at all.
Now, when I restart the MPC, the entire screen turns black or shows some black squares, (depending on the backlight knob position) then some lines get randomly cleared. Nothing else happens and panel LEDs are off . I can still hear the usual low-level inverter noise though.
I have already checked the flat cables and other internal connections but no luck so far.
I suspect a thermal issue as I was using the unit inside of some kind of drawer, also I had an ACARD SCSI IDE converter that seems to run a bit hot ( which I have now disconnected)
Do you think this could be related to broken PSU capacitors? I do have the service manual but I could not find any procedure on how to measure output voltages. Is there any way I can check?
Also, I'm a bit suspicious about the "white noise" issue just before the unit failed completely.
Could it be related to the soundboard failure?
I have some spare boards (but I'm not sure they are in working condition) and I will try to do some swap tests.
If all boards except the CPU board are disconnected, is a working unit supposed to boot?
Thanks in advance for your help!
My MPC60 stopped working while I was playing some external instrument through MPC60 sampling input.
At some point, I started smelling burnt. The sound I was monitoring fainted for a couple of seconds ( lack of bass and white noise) and then stopped at all.
Now, when I restart the MPC, the entire screen turns black or shows some black squares, (depending on the backlight knob position) then some lines get randomly cleared. Nothing else happens and panel LEDs are off . I can still hear the usual low-level inverter noise though.
I have already checked the flat cables and other internal connections but no luck so far.
I suspect a thermal issue as I was using the unit inside of some kind of drawer, also I had an ACARD SCSI IDE converter that seems to run a bit hot ( which I have now disconnected)
Do you think this could be related to broken PSU capacitors? I do have the service manual but I could not find any procedure on how to measure output voltages. Is there any way I can check?
Also, I'm a bit suspicious about the "white noise" issue just before the unit failed completely.
Could it be related to the soundboard failure?
I have some spare boards (but I'm not sure they are in working condition) and I will try to do some swap tests.
If all boards except the CPU board are disconnected, is a working unit supposed to boot?
Thanks in advance for your help!