GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Page 330 Chapter 12 - Troubleshooting
12.4 Extended Cradle Table Operation Issues
This section contains a list of problems that may be encountered during operation of the Discovery
LS Extended Cradle table, suggests their likely causes and the action that can be taken to rectify
the problem. A summary of the issues is presented in table and more detailed explanations are
given in the following sections.
CAUTION IN ALL PROCEDURES DESCRIVED IN THIS SECTION, IT IS ESSENTIAL THAT THE SERVICE
ENGINEER USES ONLY THE PROPER EQUIPMENT AND TAKES ALL THE NECESSARY
PRECAUTIONS TO PREVENT POSSIBLE INJURY TO PERSONNEL AND DAMAGE TO
EQUIPMENT.
Problem Likely Cause
Suggested Action/
Replace if Necessary
Clutch fails to engage/
disengage.
• E-Stop circuitry activated.
• Faulty CDU supply cable connection.
• Faulty clutch control signal cable
connection.
• Faulty clutch power cable connection.
• Malfunction in clutch.
• See flow chart in Figure 12-10.
Base axis does not move. • Clutch not engaged.
• Base stuck in CT position.
• See flow chart in Figure 12-12.
Base axis motion malfunction. • Elevation Tilt Amplifier malfunction.
• E/T or ETC control loop of the
amplifier malfunction.
• Refer to the LightSpeed Service
Manual.
Base axis does not stop at
the limit switch and collides
with mechanical stopper
• Faulty connections of Table Position
Cable.
• Connect Position cable
properly. (More details in
Section 12.2.5 on page 319.)
Digits disappear from Gantry
Display
• Faulty Table Position Cable. • Repair/replace Table Position
Cable.
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