LiftMaster LA400 LA400 Manual - Page 42

P1 D6 O1 2 3 4 5 N TROUBLESHOOTING » BASIC CONTROL BOARD LAYOUT BASIC CONTROL BOARD LAYOUT 20 19 17 26 1 14 13 18 12 11* 10 21 P2 R223 ALARM NO C MAGLOCK NO C NC Z1 GATE 1 BRN GRN WHT YEL BLU RED 10A 32V D1Ø Z12 J19 K6 Ø14GPØ89ØE Ø14LGØ89ØE Ø14SKØ89ØE J 1 K5 L1 1 S8 R2 OFF OFF ON SAVE ON MAGLOCK LEARN R1 XMITTER SINGLE NO DUAL MODE NC EDGE 2 F3 NO NC PHOTO S1 K2 DIAGNOSTIC GATE 1 K1 Q9 SET OPEN LIMIT SET CLOSE LIMIT LEARN LIMITS R2Ø7 Z2Ø R227 J18 R224 U4 Z22 R92 R91 R94 R93 CLOSE EDGE OPEN EDGE/ PHOTO Z9 OPEN PHOTO Z8 CLOSE PHOTO 24V ACCESSORY R9Ø POWER 24V R1Ø1 FORCE GATE 2 TIMER RUNNING BIPART DELAY TIMER TO SINGLE CLOSE BUTTON COM OVLD OVLD OPEN SWITCHED ACCESSORY POWER CONTROL INPUTS GATE 2 BRN GRN WHT YEL BLU RED 10A 32V R4 C2 J4 D15 R196 24 VAC/ INPUT MOV2 R1ØØ F4 ACCESSORY OVLD K4 F5 D21 K3 D8 Q22 D22 MIN MAX OFF MAX R35 D9 C12 D27 Z3 Z4 U3 C11 OFF MAX F7 C13 C4 F6 F2 SINGLE BUTTON RESET STOP POWER COM COM SHADOW LOOP INPUTS INTERRUPT CHGR OVLD COM F1 20A 32V MOV1 JMPR2 DB1 C64 U2 R9 D1 JMPR1 D4 D2 FUSE OPEN BATT 2 BATT 1 2 3 4 5 6* 22 7 8 9 23 24 25 16 15 ITEM DESCRIPTION 1 Connector P1 2 Connector P6 3 Connector P8 4 Connector P7 5 Connector P9 6 Connector P12 7 Connector P10 8 Connector P11 9 Connector P5 10 Connector P16 11 Connector P13 12 Connector P17 13 Connector P14 FUNCTION Antenna Input Close Edge Open Edge/Photo Open Photo Close Photo Switched Accessory Power* Control Inputs Loop Inputs 24 Vac Input Gate 2 Accessory Power* Gate 1 Maglock/Solenoid *See page 38 for max current draw ITEM DESCRIPTION 14 Connector P15 15 Connector 16 Connector 17 DIP Switch 18 Pushbutton 19 Pushbuttons 20 Pushbutton 21 Pushbuttons 22 Pushbutton 23 Potentiometer 24 Potentiometer 25 Potentiometer 26 Connector 41 FUNCTION Alarm Battery 1 Battery 2 S1 Learn Xmitter - Program Remote Gate 1 - Jog Learn Limit Learn Limits Gate 2 - Jog Learn Limit Single Button Force Bipart Delay Timer-to-Close Receiver