Klein 3000 Series Troubleshooting Manual page 45

SYSTEM 3000 OPERATIONS AND MAINTENANCE MANUAL
The 200 volts supplies power to the towfish and is fused onto the back of the TPU.
200 volts AC enters the power supply board from the transformer at JP1 HV.
200 volts DC is generated and can be measured between the base of the fuse holder
and the BNC cable.
L.E.D. D9 lights if there is excessive current draw (cable short).
Low Voltage Supply
+5 volts, +12 volts, and -12 volts are generated from a separate power supply located
center right. This is also used to supply the VME chassis. The +5 volts can be
measured on the power supply across the red and black wires. 200VAC is the input
power at JP1. The +12 volts and -12 volts can be measured at connector JP4.
L-3 Klein Associates, Inc. TROUBLESHOOTING GUIDE 4-41