Dynex DSX - 7.2 Troubleshooting

Troubleshooting
7-2 DSX™ System Service Manual
7.2 Troubleshooting
Troubleshooting information presented in Table 7-1 is for problems that occur after the
system has been initialized. If necessary, the service engineer can check individual operations
for the X-, Y-, and Z-Drives via the manual mode of operation described in Chapter 5. The
information below assumes that the system is, in general, working properly, except for the
defective component (i.e. the X-Drive and Y-Drive are functioning properly but the Z-Drive
is not functioning). If all drives are defective, it is probable that the problem is not in the drive
mechanism (for example, the door is not closed).
Table 7-1 Troubleshooting the Pipette and XYZ Axis Assemblies
Symptom Probable Cause Resolution
X-Drive Belt not in
place or defective
Tighten or replace the belt (refer to page 7-53
for the procedure).
X-Drive Not
Functioning or
does not travel
correct distance
X Transition Board
defective
Replace the X Transition Board (refer to page
7-51 for the procedure).
X-Drive Motor
Defective
Replace the X-Drive Motor (refer to
page 7-43 for the procedure).
X Optointerrupter
Defective
Replace the Optointerrupter (refer to
page 7-43 for the procedure).
X Encoder Defective Replace the X Encoder (refer to page 7-44
for the procedure).
X Pulley Misaligned Align one or both pulleys (refer to page 7-50
for the procedure).
Y-Drive Belt not in
place or defective
Tighten belt or replace belt (refer to the
Removing the Y-Axis Drive Belt section).
Y-Drive Not
Functioning or
does not travel
correct distance
Y Transition Board
defective
Replace Y transition board (refer to the
Removing the Y-Transition Printed Circuit
Board section).
Y-Drive Motor
Defective
Replace Y-Drive Motor (refer to the
Removing the Y Axis Motor section).
Y Optointerrupter
Defective
Replace Optointerrupter (refer to the
Removing the Y Optointerrupter section).
Y Encoder Defective Replace Encoder (refer to the Replacing the
Encoder section).
Y Pulley Misaligned Align one or both pulleys (refer to page 7-50
for the procedure).