LiftMaster 61LM Owners Manual - Page 173

CODE MATCHING PROCEDURE FOR USE WITH OLDER TRANSMITTERS /OPENERS (WITH RED TEST LIGHTS) Code Switch Selection The Remote Control Security Transmitter has no switches inside, but some older transmitters and openers do. In order for them to work together, you must set the switches in the older devices to match the security code you choose. First, decide on a 4-digit number code. Write the number in the 4 blank boxes above the chart. Look at the first digit you have chosen, on the left. Follow the arrow straight down until you find that number in the chart, directly below the box. (Remember that there are two numbers on each transmitter button, so 1|2 means 1 or 2, 3|4 means 3 or 4, etc.) Put your finger on that spot. Now look at the second digit you have chosen. Follow the second arrow straight down the shaded column until you find that number in the same section as the first one. Put a check mark next to those numbers. (For example, if your first number is 1 and your second number is 0, then you should have marked the row that contains 1|2 - 9|0.) In the row you just marked, there are three symbols on the right side. They are some combination of +, 0, and - . Copy these symbols straight downward into the first three blank boxes (labeled 1, 2, 3) below the chart. Now repeat the procedure. Go back above the chart and find the third digit you chose. Follow the dotted line down the right hand chart until you find that number. Then take the fourth digit and follow the second dotted line down the shaded column until you find that number in the same section as the third one. Put two check marks in that row. Now copy this set of symbols down into boxes 4, 5, 6 below the chart. Boxes 7, 8, 9 are already filled in because these settings are always the same. Code Switch Setting The chart with nine symbols shows how to set the code switches in any transmitter or opener. To find the switches on a red light transmitter, see Figure 4 below. To find the switches on an older style opener, see its instructions or call our toll-free number for assistance. The switches are a tiny block of nine 3-position switches which are marked 1 through 9 and + 0 -. Use a pen point or other small tool to set the switches to match the settings at the bottom of the worksheet. After reassembly, test all transmitters to be sure they open the door. Figure 4 Transmitter Circuit Board 123456789 + 0 Match Code Switches (1-9) Code Switches (1-9) +12345678 9 0 1| 2 3| 4 1|2 5|6 7|8 9|0 1| 2 3| 4 3|4 5|6 7|8 9|0 1| 2 3| 4 5|6 5|6 7|8 9| 0 1| 2 3| 4 7|8 5|6 7|8 9| 0 1| 2 3| 4 9|0 5|6 7|8 9|0 - - - 0 0 + 0 0 - 0 + 0 0 + + 0 + - 0 - 0 0 - + 0 - - + 0 0 + 0 + + 0 - + + 0 0 0 0 - 0 + - 0 - - + 0 0 1| 2 3| 4 1|2 5|6 7|8 9|0 1| 2 3| 4 3|4 5|6 7|8 9|0 1| 2 3| 4 5|6 5|6 7|8 9| 0 1| 2 3| 4 7|8 5|6 7|8 9| 0 1| 2 3| 4 9|0 5|6 7|8 9|0 +-- 12 3 4 5 6 7 8 9 - - - 0 0 + 0 0 - 0 + 0 0 + + 0 + - 0 - 0 0 - + 0 - - + 0 0 + 0 + + 0 - + + 0 0 0 0 - 0 + - 0 - - + 0 0 Replacement parts: 9V battery 10A16 Visor clip 29C128 Keypad 180D173 Visor clip holder 31C412-1 Remote case only 41A4797 (circuit board not included) For service in the U.S.A., dial our toll-free number: 1-800-528-9131 in Canada, dial: 1-800-654-4736 114A1824D © 1995, Chamberlain Group, Inc. All Rights Reserved Printed in Mexico