GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Chapter 12 - Troubleshooting Page 319
12.2.3 Base Axis Moves Constantly
If the base axis moves constantly, take the following action:
1.) Disconnect the Remote Control Cable (2309065):
a.) If the base axis continues to move, replace the KB Box.
b.) If the base axis stops moving, check the Remote Control Cable, P/N 2309065, and verify
that the switch works correctly and is not stuck in one position.
Note: Before opening the Control Box, disconnect the KBPB supply cable from J1. Touching wires under
voltage might blow the KB Driver.
12.2.4 Base Axis Moves in One Direction Only
If the base axis only moves in one direction, perform the following checks:
1.) Check the Remote Control Cable, P/N 2309065, and verify that the switch works correctly and
is not stuck in one position.
2.) Disconnect the Remote Control Cable, P/N 2309065. If the base axis continues to move,
replace the KB Box.
12.2.5 Base Axis Does Not Stop at the Limit Switch and Collides with
Mechanical Stopper
If the base axis does not stop and collides with the mechanical stopper, perform the following
checks:
1.) Verify that the Pin Locking Mechanism works properly, and both limit switches are pressed at
CT and PET end.
Note: Do not touch the terminal lugs of the limit switches or short them to the chassis. Doing so could blow
the KB Driver.
2.) Open the ETC Cover and look at the I/F LEDs.
a.) Toggle the PET Position Limit Switch and verify that LED DS12 is blinking.
b.) Toggle the CT Position Limit Switch and verify that LED DS10 is blinking.
c.) If the LEDs are not blinking, check the connections of the Position Cable,
P/N 2318721.
12.2.6 Base Axis Stops at Limit Switch, But Workstation Displays Message:
Move Table to CT Position
If the base axis stops at the limit switch, but the workstation still displays the message: Move table
to CT position, perform the checks in Section 12.2.5, and verify that the Limit Switches work
properly.
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