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Re: [emax] Re: static white noise sound on top of EMAX 1 RACKMOUNT samples

2015-01-04 by Ted Summers

You should be looking at Analog PCB.

It can be a bad connection on the ICs or a bad chip.


IC 25 (6012 DAC) and IC 36 (SSM 2047) would be relevant.

Move them to another pair and see:
- does the problem go away? --- likely bad connection on the IC pins
- does the problem move to other channel where you moved it? - bad IC(s).

Regards,
Ted


On Jan 3, 2015, at 4:06 PM, nick@... [emax] wrote:


Hi All. I am getting distortion on voice 7. With Dynamic Allocation on if I go to Master > Special > Disable Channels and disable 7 my problem goes away. Does the Emax have a memory battery to store its settings? Until I fix this problem I have to go in each time I turn it on and disable voice 7. But I don't see a coin type batter on the PCBs.

Which board is the audio board? I see CPU PCB and Analog PCB (probably this one since it has the audio outs?)

I don't want to try an reset all of them since the rest of the voice are good. ;Does anyone know which IC go to which voices?

If it is the Analog PBC it looks like each voice has 1 pair of ICs since there are 16 of them. The top row is labeled IC 30 through IC 37. Bottom row is labeled IC 30 through 37.

If it is the CPU PCB these are labeled IC 34 through IC 53.




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