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Installation, Operation, and Maintenance Manual # 509252 Rev R 103
Figure 41. Photoresistor Assembly for Direct View (I300M)
Filament Transformer Removal/Replacement
1. Remove irradiator housing.
2. Cut the cable ties and slide the PVC tubing off the magnetron connections.
Remove the filament terminal screws. Disconnect the leads at the primary
terminals. Remove the two anchor screws holding the transformer to the side
rail, and remove the transformer.
3. Replace the transformer by reversing the process.
4. Reconnect the filament transformer wires to the magnetron and tighten the
terminal screws to 0.9 N-m (8 inch-lbs.) using a torque-limiting screwdriver.
Reposition the tubing over the terminal screws and install cable ties.
5. Install the irradiator housing as described in Chapter 6, page 100.
Photoresistor mating
connector
Photoresistor
block mounting
holes
Photoresistor
mounting
block
Photoresistor PWB
UV filter lens
Photoresistor