Post your questions, opinions and reviews of the MPC1000. This forum is for discussion of the OFFICIAL Akai OS (2.1). If you wish to discuss the JJ OS, please use the dedicated JJ OS forum
By editanstalt Sun Nov 28, 2021 10:41 am
Hi.

Mpc 1000 Jjos2xl 3.59
My analog inputs have extreme noises.

With/without incoming signals or plug.
MonoL: very synchronous clicking noise.
MonoR: random clicking noisy noise.
The input meter represents the audible noise.

Recording of input technicaly works, but the recorded signal gets extremely distorted (overdriven?)
Different Record Gain Settings have no positiv effect.
Different Record Modes have no positiv effect.

Recording Main Out works fine.
Recording Digital Inputs works fine.

I checked the ADDA Pcb optically for any obvious damages like popped transistors or loose parts but couldnt find any.

The Inputs used to work fine. I might have damaged something sampling quit hot line signals from a tr-909. Thats my wild guess.

Can anyone help me narrow down the problem so i can consider fixing?

As an alternative i am interested in an, at least equally good, external AD converter for direct use with the digital input, if someonone has recommandations. Very appreciated…

Thanks.
Juli