Overview
DSX™ System Service Manual 13-1
Chapter 13 Replacing Washer Module Components
13.1 Overview
Note: For the purposes of this manual, the washer module is defined to include all
items that are involved with the washing of the microplate. This includes certain
components that are physically external to the washer module, such as the
dispense bottles or the aspirate pump.
The Service Engineer is expected to be able to replace the pump and related components of
the Dispense fluid system, the float valve in the waste bottle, and other items described in
section on Troubleshooting.
If the Washer Module is defective (other than the replaceable items described in the
Troubleshooting section), the normal service mode is to remove the module and replace it
with a new one. When the module is replaced, the plate pick-up coordinates must be verified
and the dispense pumps must be calibrated.
13.2 Troubleshooting
While the Washer Module is a service replaceable item, many problems can be easily solved
by the service engineer (e.g. defective dispense tubing).
For internal components (e.g. the circuit boards, motors, etc.), module replacement is the
standard response and the defective washer module should be sent to the nearest service
center (these items are indicated below as “Module Replacement”). Replacement of these
items should be performed only on an as needed basis if replacement of the module is not
possible and the service engineer has the appropriate components on hand. After the module
has been repaired or replaced, use the alignment plate to ensure that the module is properly
aligned.
Note: Replacement of the main pcb requires DynexTest software for calibration as
a stand-alone module prior to being installed into the DSX.
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