DX7 no sound (i think it's not the Battery)

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funkybunch
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DX7 no sound (i think it's not the Battery)

Post by funkybunch » Tue Feb 23, 2016 12:03 am

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? :?:

JeEA
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Re: DX7 no sound (i think it's not the Battery)

Post by JeEA » Tue Feb 23, 2016 2:24 pm

Have You changed the battery.
Data Will be garbish if the memory backup is gone.
I would change it and dump sounds to it via sysex
and try again to see if it had helped.

Cheers

huntercomplex
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Re: DX7 no sound (i think it's not the Battery)

Post by huntercomplex » Tue Apr 05, 2016 9:18 pm

I have the same problem. I just had the battery replaced, but that didn't solve the problem. Any help would be very much appreciated!

gslug
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Re: DX7 no sound (i think it's not the Battery)

Post by gslug » Thu Apr 07, 2016 9:59 pm

There is a relay on the output of the DX7, intended to mute it during power down. Mine occasionally fails to unmute on power on, so I'd suspect this. I keep meaning to replace mine, but haven’t been able to find a part number. You could probably get away with removing it and bridging the appropriate pins.

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