RUN XT: Service & Maintenance Manual - rev. 2.0
Page 6.31
6.8. THE UP-DOWN MOVES IN ONLY ONE DIRECTION
THE UP-DOWN
MOVES IN ONLY
ONE DIRECTION
Are LEDs DL1 and DL3 on the
up-down board both illuminated?
Is the machine in one of the 2 travel
limit poYEStions?
YES
NO
YES
1
2
Does the up-down board receive the
correct control YESgnal in the
inactive direction?
NO
Replace the up-down
board: see paragraph
7.15
Does the CPU board send the
correct control YESgnal in the
inactive direction?
NO
Check and/or replace
cable RX-1 connecting
the CPU board to the
up-down board
NO
Replace the CPU board:
see paragraph 7.3.
YES
3
A
YES
Continued on the following page.