LiftMaster 8500W Instructions - English French Spanish - Page 1
LiftMaster 8500W Manual
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Logic Board Model 050DCRJWF To prevent possible SERIOUS INJURY or DEATH: • Disconnect ALL electric and battery power BEFORE performing ANY service or maintenance. Before you begin. Your new MyQ® serial number is located on the replacement label with your replacement logic board. You will need this new MyQ serial number to connect your opener to the network. 1. Disconnect power. 2. Open the front panel (A). A To prevent damage to the receiver/logic board, DO NOT touch printed circuit board of replacement receiver/logic board during installation. ALWAYS wear protective gloves and eye protection when changing the battery or working around the battery compartment. WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov 3. Remove the battery cover. Disconnect the battery. Remove the battery and set aside (B). NOTICE: This device complies with Part 15 of the FCC rules and Industry Canada's license- exempt RSSs. Operation is subject to the following two conditions: (1) this device may not B cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device must be installed to ensure a minimum 20 cm (8 in.) distance is maintained between users/bystanders and device. This device has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules and Industry Canada ICES standard. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular B installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to B correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. F D C 4. Disconnect the wires coming from the safety reversing sensors, door control, door lock and cable tension monitor from the logic board (C). 5. Remove the logic board cover (D). E 6. Disconnect all the wiring harnesses from the logic board (E). 7. Remove the four screws securing the logic board, remove the logic board (F), and discard. 8. Install the new logic board and connect the wiring harnesses. Route the antenna through the channel in the cover. 9. Adhere the new MyQ serial number label over the original label on the logic board cover. 10. Reprogram the travel and test the safety reversal system (see pages 2 and 3). 11. Program all remote controls and keyless entries (see page 4). 12. Use the MyQ app to add the new MyQ serial number to your account. 1