Rapiscan TSA TPM-903B Operation And Service Manual - page 33
TSA TPM903 Operations and Service Manual
Doc: # 5058 Rev. A
_____________________________________________________________________________________________________________________
_____________________________________________________________________________________________________________________
This document is the exclusive property of Rapiscan Systems.
Unauthorized use or distribution is strictly prohibited
27
6.2. COMPONENT TROUBLESHOOTING
6.2.1.TPM CONTROLLER
The controller’s function is to receive the detectors digital pulses for counting and processing.
which are amplified and discriminated by the detector module.
Physically inspect the unit for harness wiring or connector problems. This procedure does not
cover the replacement of wires or connectors. Such replacement should only be done by
qualified service personnel. Questions concerning parts or wire type and availability may be
addressed to Rapiscan’s technical staff.
If a problem is suspected in the controller, replace it with a known good assembly, either from
spare parts or from another unit.
6.2.2. DETECTOR ASSEMBLIES
The detector assemblies have a detector module, high voltage module, and plastic scintillator
detector mounted inside. This assembly is difficult to remove and then get reinserted into the
PVC tube without damaging any of the parts. It is recommended that if a detector assembly is
defective that it be returned to Rapiscan for repair.
6.2.3. INFRARED DETECTOR
A green LED located on the top of the IR detector will illuminate on power up.
A yellow LED located on the top and back of the IR detector will illuminate when the detector
senses an object.