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Repair
Individual items used in this controller are not
repairable. If they fail, they must be replaced. See
Parts, page
69, for a list of repair kits.
NOTICE
To avoid damaging the circuit boards when
servicing the control box, wear Part No. 112190
grounding strap on your wrist and ground
appropriately each time
Main Circuit Board, Power Board,
LED Panel or Keypad Membrane
Removal
1. Remove power from the system.
2. Remove four screws, then remove the controller
access cover.
3A3657C
3. Remove connectors from the main board and
from the power supply, as shown.
Repair
65
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