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Servicing
Service Locations
Service Locations
7-50
Model 42i Trace Level Instruction Manual
Do not wipe the polarizing plate with a dry cloth, it may easily scratch the
plate.
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Do not use alcohol, acetone, MEK or other Ketone based or aromatic
solvents to clean the module, use a soft cloth moistened with a naphtha
cleaning solvent.
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Do not place the module near organic solvents or corrosive gases.
Do not shake or jolt the module.
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Disconnect the ribbon cable and the two-wire connector from the front
panel board.
3. Remove the four screws at the corners of the LCD module.
4. Slide the LCD module out towards the right of the instrument.
5. Replace the LCD module by following previous steps in reverse.
For additional assistance, service is available from exclusive distributors
worldwide. Contact one of the phone numbers below for product support
and technical information or visit us on the web at www.thermo.com/aqi.
1-866-282-0430 Toll Free
1-508-520-0430 International
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Thermo Fisher Scientific
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Troubleshooting
