[CW] ETM-9C (keyer with buildt in paadles) Din Connector schematic

[Werner 'Joe' Jochem]

> I want to turn the the keyer's internal speaker of, as far as i 
> remember i 
> have to press key "1+2" (funct.) and to give a cw command, anyone 
> knows which 
> one ? I do not want to cut the speakers cable...

Try "M" - like "monitor"  ..
It works fine for my ETM9-COG ;-)
73 Joe DK7VW