TM 5-3810-307-24-1-2
8 BAD DATA TRANSFER BETWEEN DISPLAY CONSOLE & CENTRAL
UNIT, INTERFERENCE PROBLEM - continued
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Check if additional ground link between main
board terminal X9 and central unit box mounting bracket is in place.
Refer to Drawing 3 in Section 10 and Theory 1 in Section 12.
Install ground line single cable minimum of AWG14 (2.0mm)
Correct?
NO
between terminal X9/2 and central unit box mounting bracket.
Refer to Drawing 3 in Section 10 and Theory 1 in Section 12.
YES
Ensure that cable shields are connected correctly.
Refer to connection and wiring diagrams, Drawings 1, 2, 3 in Section 10.
Refer to Procedure 1 in Section 11.
Make correct shield connection.
Correct?
NO
Refer to connection and wiring diagrams,
Drawings 1, 2, 3 in Section 10.
Refer to Procedure 1 in Section 11.
YES
Find out which component of the crane electric is spiking out (e.g. dump valve,
outrigger relay). Install a diode or resistor across terminals of spiking component.
Diode type such as 1N4001 can be used (watch + and connection for diode).
Refer to Crane Electrical Diagrams.
END
Change-1 G-25/(G-26 Blank)
