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Doug Edmonston at UT found that one of the wires had broke off of the pin at the coldhead end of the power cable. He rebuilt the cable ends and the coldhead functions normally again.
Cable Specifics:
RTI part # - RT9702-3S.
Deutsch # - Mil C 81703 S I-II-III/AS81703
Military Connector MS3137 (Deutsch DM9700 Compatible)
Link to RTI
Coldhead end Power connector:
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