At 07:12 PM 1/25/09, you wrote:

>Ok i visited a friend yesterday and he has received an OB8 that is in
>bad shape.
>
>When you turn it on it plays ok for some seconds and then it starts
>sounding like burned (bitcrushed basically/horrible).
>
>When i tried to press the autotune button the first four lights
>lighted but the rest blinked.
>
>it is going to service obviously but can anyone harbor what could be
>the problem (what the blinking on autotune means in the manual it
>says voices are from that point onwards ignored but what can make them
>not pass the autotune test.. )
>
>Thanks
>
>Theodore.

It could be a lot of things, but the fact that it's a group of four
voices indicates something common to that voice board. It could be a
bad connector, a bad summing amp or a bad control voltage specific to
that voice board.
Or, the previous owner may have cannibalized parts from one voice
board to fix the other.

Good luck.