How should I ?
I\ufffdm not a service technician,- only have some skills and experience w/ MY gear :-)
If it doesn\ufffdt pass the CPU memory test, the service manual says "check memory circuit and LSI".
You cannot repair that yourself,- on the DSP (CPU) board there is dedicated RAM which has nothing to do w/ the waveform-memory cards.
This RAM is IC 2 on the DSP board in the schematics and there can be many of these in the ballpark..
The DSP is a LSI chip I think.
It can be everything thinkable damaged on that circuit board, not only one of these chips ...
You need an oscilloscope and tone generator to find the fault and later you\ufffdll run into the "finding parts and solder \ufffdem in and out nitemare".
It\ufffds much easier and cheaper buying a 2nd working condition S-1100 and make one out of two, then using the rest of the canibalized sampler for spare parts in future.
I myself also own a somewhat dead S-1100 and was not able to find the fault, neither the authorized AKAI service could.
I wished you had a damaged waveform memory board which causes distortion (some also do when running hot !),- that would be a easy fix then.
P.
Am 19.06.2014 18:30, schrieb jsewellro@... [akaiS1000S1100Samplers]:
I\ufffdm not a service technician,- only have some skills and experience w/ MY gear :-)
If it doesn\ufffdt pass the CPU memory test, the service manual says "check memory circuit and LSI".
You cannot repair that yourself,- on the DSP (CPU) board there is dedicated RAM which has nothing to do w/ the waveform-memory cards.
This RAM is IC 2 on the DSP board in the schematics and there can be many of these in the ballpark..
The DSP is a LSI chip I think.
It can be everything thinkable damaged on that circuit board, not only one of these chips ...
You need an oscilloscope and tone generator to find the fault and later you\ufffdll run into the "finding parts and solder \ufffdem in and out nitemare".
It\ufffds much easier and cheaper buying a 2nd working condition S-1100 and make one out of two, then using the rest of the canibalized sampler for spare parts in future.
I myself also own a somewhat dead S-1100 and was not able to find the fault, neither the authorized AKAI service could.
I wished you had a damaged waveform memory board which causes distortion (some also do when running hot !),- that would be a easy fix then.
P.
Am 19.06.2014 18:30, schrieb jsewellro@... [akaiS1000S1100Samplers]:
\ufffdHey PeWe, thanks for the help, I have been running the diagnostics and i found that it did not pass the CPU memory test, would you be able to tell my this is happening?
thanks
Jonathan