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4. Slide the cartridge out of the chassis module, remove the retaining ring from around the screen, and remove
the O-ring from the rear of the cartridge.
5. Place the retaining ring and the O-ring on the replacement cartridge and slide the replacement cartridge into
the chassis module.
6. Bend the cartridge-retaining tabs outward (away from cartridge).
7. Solder the leads to the cartridge terminals. See Figure 2 for proper lead connections.
8. Insert chassis module in case front and switch button in case back.
9. Fasten case halves with previously removed screws.
INTERNAL WIRING DIAGRAM