LM690

[bss]

Anyone have any idea if its possible to control an old Lm690 dimmerpack from a Zero88 Demux (0-10V) ?

 

Bjørn S.

Norway

[KWR88]

This would depend, was it originally a slave unit to a 691 or was it a stand alone unit.

 

When used as a slave unit to a 691 the actual control was would have been current driven not voltage.

There were interface cards that could be fitted into the unit to change this to voltage control but we no longer have the ability to manufacture them.

 

The only way that you are going to be able to tell is check to see where the cable from the 7pin XLR is fitted to.

 

If it goes to a PCB labelled as M5256 or M5257 then this is an interface PCB for voltage control, and you can then use the demux to control the dimmer.

[bss]

Thank you very much for your quick response.

 

It seems that my 690 are the current controlled version.

 

Are there any posibility to get PCB layout and component description for

M5256 / M5257 ?

 

 

Regards

 

Bjørn S.

Norway