6. TROUBLESHOOTING page
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Model PRM-470B
To replace the voltage divider assembly, plug it onto the tube and rewrap the area with electrical
tape. Test carefully for light leaks.
NOTE:
It is essential that the voltage divider assembly is completely wrapped and that the tape covers
the PMT to prevent light leaks.
Reconnect the two Molex connectors. Perform the Electronic Calibration Procedure. (5.2.)
6.1.4. Detector Assembly:
The detector assembly is made up of the PMT and the organic plastic detector. In either case, it
is considered to be one unit and must be replaced as such. The detector is visible in the bottom
of the enclosure when the top is removed.
To remove the assembly, lift the detector assembly out of the enclosure.
To replace the assembly, place the detector and the foam in the bottom of the enclosure.
6.1.5. Mechanical and Cabling Assembly:
The mechanical and cabling assembly is not considered field serviceable. If problems arise, the
instrument should be returned to TSA for service.
