Troubleshooting Tips; Potentiometer Counts Differ; Symptom; Probable Causes And Suggestions - GE Discovery LS System Service Manual

GE
HEALTHCARE
D 2307224-100, R
IRECTION EVISION
6.3

Troubleshooting Tips

6.3.1

Potentiometer Counts Differ

6.3.1.1

Symptom

Potentiometer (pot) counts differ by fewer than 100 counts when the table base moves from CT to
PET.
6.3.1.2

Probable Causes and Suggestions

Refer to
1.) Loose pulley set screws. If possible, monitor the position pot and clutch motor pulleys while
pressing the CT and PET position buttons. If the pulleys slip, tighten the set screws.
2.) Broken secondary base position pot. The secondary base position pot is fragile and easily
broken, especially if it shipped with the clutch motor and position pot pulley set screws
tightened. Replace the position pot. Go to Section
procedure to set up the pot. Go to
3.) Broken pot connection wire. Check for loose solder joints and broken wires inside the
insulation. The exposed pot wires are easy to catch and break. Replace or solder the wires. If
the pot was removed to repair, go to Section
to set up the pot. Go to
4.) Poor clutch motor bulkhead connections. Detach and reconnect the bulkhead cables. Go
to
Face pulley and turn
shaft clockwise.
6
Figure 6-139 and Figure
page
page 210, and characterize the table base.
Slot on End of Pot
Pulley Shaft

Figure 6-145: Clutch Motor and Base Position Potentiometer

Chapter 6 - Table
6-145.
6.2.6.25
page 210, and characterize the table base.
6.2.6.25 on
210, and characterize the table base.
Use a 1.5 mm Allen wrench to loosen two pulley set screws.
D LS S S
ISCOVERY YSTEM ERVICE
on page 164, and follow the
page 164, and follow the procedure
M
ANUAL
Page 215