Appendix D – Replacing Flat Panel Display Bulbs
99
3512 and 3512 KP Units
Mitsubishi TFT Flat panel Display (Model #AA121SK12)
1. Turn off the power source.
2. Using a small Phillips-head screwdriver, loosen the two protruding captive
screws at the top back of the unit, and remove the lid.
3. If a touch screen or keypad is installed, disconnect the cable(s) at the top of the
system board.
4. Set the unit with the front panel down and loosen the four captive screws holding
the front panel to the display adapter plate.
5. While securely holding the front panel, flip the unit over.
6. Lift off the front panel, and set it aside.
7. Unscrew the four screws that attach the flat panel display to the standoffs.
8. Disconnect the bulb connector from the inverter card.
9. Gently lift the left side of the flat panel display, and disconnect the data interface
connector.
10. Turn the display face up on a protective surface.
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