I am in need of the service manual for my Schlumberger 4031 service 
monitor. I have the operators manual so I don't need that. The 
switching power supply is out in mine and being old school(analog 
type), I can't repair this without schematic. The power supply is a MGV 
Stromversorgungen type 204031. A copy, even of just the power supply 
section, would be O.K.. Maybe someone would have a doner 4031 they 
would sell a working supply out of would work too. This failure is 
holding up my 900 Mhz repeater project, so I am eager to get it 
repaired.
Thanks, Nick
WB7PEK

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