© 2005 PAT GmbH · D-76275 Ettlingen · Hertzstr. 32 - 34 · ++49 (0) 7243 709-0 · FAX ++49 (0) 7243 709-222 · Email: pat.ettlingen@pat-group.net 14
24 160 19_0106E_Rev D.doc / 2005-06-27 / rk.
7. NO DISPLAY
PROBLEM: Blank console display with no warning light shown. All crane moments have
been stopped.
Measure voltage on the main board terminal strip between X1:1 (10-30V) and X1:3
(ground). This is an input voltage from the crane.
Refer to system wiring diagram.
Check fuses in central unit.
Replace fuses.
Measure voltage on the main board between X1:5 (+UB) and X1:6 (ground). This
is an output voltage to the console.
Refer to system wiring diagram.
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START
NO
Check crane power supply for faulty
wiring in crane electric.
NO
YES
YES
NO
Replace the main board in central unit.
Refer to system wiring diagram and main
board replacement Procedure.
YES
Corrected
Corrected
Corrected
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