As long as the washers have been fitted in the correct order, they do not need to be screwed very tightly. Next, fit the steel washer, which prevents damage to the nylon washer. The nylon washer prevents damage to the circuit board apply this washer first. Be sure to realign the housing with the gasket, which remains on the circuit board. Replace the main housing over the circuit board. Given that changing lenses will expose the sensor, at this point you could affix a clear filter (for example, OHP plastic) to minimize the chance of dust entering the sensor cavity. The glue will break and the filter will detach from the lens mount. Using a pen top or similar soft plastic item, push down on the filter only at the very edges where the glass attaches to the aluminium - to minimise the risk of breaking the filter. You may try some ways to weaken the adhesive, such as a little isopropyl alcohol and/or heat (~20-30 C). Turn the lens around so that it is "looking" upwards and place it on a table. Do not proceed unless you are sure that you are willing to void your warranty. Make sure the sensor does not touch the surface.īefore completing the next step, read through all of the steps and decide whether you are willing to void your warranty. Lift up the board and place it down on a very clean surface. There is a gasket of slightly sticky material between the housing and PCB which will require some force to separate. Be careful not to let the washers roll away. Unscrew the two 1.5 mm hex lock keys on the underside of the main circuit board. Work in a clean and dust-free environment, as the sensor will be exposed to the air.
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