Symptom | Probable Cause | Corrective Action | Recommended Tools |
IRREGULAR OR NO DISPLAY 600R, 600U
Control Panel
Control Board
Cables
AC Voltage Output
Generator Output Cable
•Probe leads between pin 1 and 2 of 5PB. (Page
•Pedal unit up to at least 30 RPM.
•Is voltage 5 VDC?
•If not 5 VDC – replace Control Panel.
•Disconnect 6PG from 6PH.
•Pedal.
•Check DC voltage between pins 2 and 3 for 5 VDC.
•No 5 VDC? – Replace Control Board.
•Perform continuity checks on all upper and lower cables.
•Replace defective cables
•Check for AC Voltage between pins 1 and 2 of 3PB, and pins 2 and 3 of 3PB.
•Is there AC voltage output in both places?
•If yes – replace Control Board.
•Check for AC Voltage between pins 1 and 2 of 3PD, and pins 2 and 3 of 3PD.
•Is there AC voltage output in both places?
•If no – replace Generator.
•Perform a continuity check on the generator output cable.
•If no continuity – replace cable
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