Teledyne UA-6, Installation And Operation Manual

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5-1
UA-6 Detector
Section 5 Maintenance and Adjustment
This section presents the maintenance procedures that may be
required in the field. These procedures may be performed
without the use of specialized equipment. The procedures are
limited to the replacement of specific parts and troubleshooting
the detector. For problems more serious than those listed, contact
Teledyne Isco's Service Department for help.
5.1 Removal and
Installation of the
Case Top
DANGER
Risk of electric shock. Disconnect the electric
power before servicing. Only trained service
personnel may remove the case top.
Earth ground bonding connector. Do not remove
or disconnect.
Remove the four case top screws, (two screws on each side of the
case). Slide case top up and off.
5.2 Part Replacement
The following paragraphs provide instructions for replacement of
parts requiring specific procedures. The majority of replacement
parts require soldering. When removing electronic parts with
multiple leads, each lead should be labeled for identification
prior to being disconnected. Ensure that capacitors, diodes, and
transistors are installed in the correct positions, and, where
applicable, with the correct polarity.
5.2.1 Recorder Replacement
Replace the recorder using the following procedure (see Figure
5-1):
1. Remove the case top using the procedure in Section 5.1.
2. Disconnect P102 on the recorder circuit board.
3. Remove the recorder speed control connector (P104) from
the recorder circuit board.
4. Remove the 3 nuts and washer securing the recorder to the
detector front panel.
5. Remove 1 screw from L bracket in rear top corner of the
recorder.