Repairing/Replacing Internal Components
DSX™ System Service Manual 11-17
11.4 Repairing/Replacing Internal Components
This section describes the repair/replacement of components of the reader module.
Note: The Reader Module is considered a service replaceable item. If a defect is
observed, the entire module is normally replaced. The information in this chapter
should be used only if it is necessary to repair or replace the module on-site.
In most cases, replacement of a component is the reverse of installation. For the sake of
brevity, re-installation is not described unless there is a difference between the two activities.
11.4.1 Removal/Replacement of the Main Board
The Main Board (Figure 11-10) provides local control of the reader module and
communicates with the personal computer. It contains the sample and reference photodiodes.
Draw Connecto
J9
J10
J12
J6
J5
J4
J11
J1
J3
Wire Function Wire Function
J1 Carrier motor J7 N/A
J2 (Not Used) J8 (Not Used)
J3 Filter motor J9 Lamp
J4 Front sensor J10 Filter home switch
J5 Home sensor J11 Reference diode
J6 Power harness J12 Fan
Figure 11-10 Main Board
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