User manual LIFT-MASTER 400LM

[. . . ] OWNERS MANUAL Model 400 Lift-Master Universal Receiver F. C. C. rules prohibit adjustments to or modification of receiver and/or transmitter circuitry except for changing the code setting and replacing the transmitter battery. [. . . ] The antenna can be plugged directly onto the receiver or mounted to a bracket and connected to the receiver with Model 86 Coaxial Cable Kit, depending on your requirements. Select a location for the receiver which allows access to the terminals and space for the antenna (as far from metal structures as possible and preferably with the antenna in an upright position). Fasten the receiver securely with screws through the two holes provided in the cover flanges. FIGURE 1--WITHOUT TRANSFORMER: Connect bell wire (not supplied) to receiver terminals 1 and 2, and to opener radio power terminals. (On openers with terminals labeled 1, 2 and 3, radio power terminals will usually be 1 and 3). Also connect bell wire to receiver terminal 4 and operator terminal 2. Make a jumper wire connection to receiver terminal 1 and 3. FIGURE 2--WITH TRANSFORMER MODEL 85: Receiver terminals 1 and 2 are not used. Connect bell wire to receiver terminals 3 and 4 and to opener relay control terminals 1 and 2. The transformer plugs into a 120V outlet. MATCHING/CHANGING THE CODE SET CODE SWITCHES IN ALL TRANSMITTERS TO MATCHING POSITIONS Code switch locations in three of the available accessory transmitters are shown below. If more than one transmitter will be used to operate your garage door opener, the code switches in ALL transmitters must be set to the same positions. Please refer to the instruction sheet packed with your transmitter for code setting procedures. [. . . ] The indicator light will turn OFF and the door will move. NOTE: If the transmitter push button is not pressed within 30 seconds, receiver indicator light will turn OFF Repeat Steps 4 and 5. 114A1266B © 1990 The Chamberlain Group, Inc All Rights Reserved Printed in Mexico [. . . ]