I get no sound on the DX7. Headphones and Volume out didn't work. The Battery have to be changed, but before i did a SysEx Dump for trying a few Preset Sounds. They are saved until i turn the DX7 off. I tried an initial Sound, without success. The local mode is on and the keys work. I also tried to play a track via midi.... nothing...
When i turn the volume up, the noise of the preamp will get a little bit louder. But that's all.
Anyone has an idea what might be the cause?
