Landmark L3015UI1 Series, Руководство по обслуживанию

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14
DISASSEMBLY
Control Board
MODELS:
L3024UI1MSG-LH / L3024UI1MSG-RH
L3024UI1BSG-LH / L3024UI1BSG-RH
L3024UI1WSG-LH / L3024UI1WSG-RH
Checking and changing the control board
NOTE : For the power cord connector, use a needle
inserted in the round hole to remove.
1. Remove the four screws from the back cover.
2. Unscrew the four screws from the plastic box.
3. Check the wired connectors for a loose connection.
4. If the wired connectors are not loose, change the
control board.
5. To change the control board, first
disconnect all wired connections.
6. Remove the screws from the faulty controlboard.
7. Depress the standoffs by squeezing them with a needle
nose pliers.
8. Remove the old control board.
9. Install a new control board.
10. Reinstall the screws in the new control board.
11. Reconnect the wired connections to the control board.
12. Replace the plastic box and its four screws.
13. Replace the back cover and its four screws.