Specifications
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1. Turn the printer Off (2). Disconnect the battery charger.
2. Slide the battery compartment door open and remove the battery.
3. Lay the printer on a flat surface with the back of the printer facing up.
4. Remove the two shoulder strap screws indicated in Figure 4-3 on page 4-8. Set the
shoulder strap, two shoulder strap sleeves, and two shoulder strap screws aside.
5. Remove the cover mounting screws.
6. Lift the rear cover off and set it aside.
7. Refer to Figure 4-4 on page 4-10. Disconnect J2 (motor harness) and J1 (printhead
harness) from the main logic board.
8. Refer to Figure 4-6 on page 4-12. Grasp the print mechanism module by the access
door top. Pivot it upward (the bottom of the print mechanism module is still inside
the printer front cover) and lift straight up. Set the print mechanism module on the
antistatic mat.
9. Refer to Figures 4-4 and 4-5 on pages 4-10 and 4-11. Carefully lift the power supply
board and main logic board out enough to get access to J12 (membrane switch
ribbon cable).
10. Remove J12 (membrane switch ribbon cable).
11. Place both boards on the antistatic mat.
12. Refer to Figure 4-7 on page 4-13. Lift the battery access door up and out of the top
cover.
13. Refer to Figure 4-17. Turn the front cover face up and, using a 1/4 in. flat-blade
screwdriver, carefully pry the defective membrane switch assembly away from the
front cover.
14. Using isopropyl alcohol to clean the area on the front cover where the membrane
switch assembly was located. Remove as much of the old adhesive as possible.
15. Remove the liner on the replacement membrane switch assembly. With the LEDs
facing the top edge of the cover, thread the ribbon cable through the cutout in the
front cover. Once in place, press around the membrane switch assembly so the
adhesive makes contact with the front cover and the switch is secure. Allow time for
the adhesive to dry.
16. Place the front cover face down.
17. Refer to Figure 4-4 on page 4-10. Ensure the contacts on the membrane switch
ribbon cable face away from the edge of the main logic board where J12 is found.
Install the membrane switch ribbon cable into J12.
18. Refer to Figure 4-5 on page 4-11. Slide the power supply board and main logic
board into the front cover. Ensure the rubber bezel slides into the slots in the front
cover.
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