Printed Circuit Board Connector Wiring Diagram SiBE04-70518 Printed Circuit Board Connector Wiring Diagram1. Printed Circuit Board Connector Wiring Diagram1.1 Indoor Units1.1.1 FTK(X)S 50 DConnectors PCB(1) (Control PCB)PCB(2) (Signal Receiver PCB)PCB(3) (Display PCB)PCB(4) (INTELLIGENT EYE sensor PCB)Note: Other designationsPCB(1) (Control PCB)PCB(3) (Display PCB)1) S1 Connector for DC fan motor2) S6 Connector for swing motor (horizontal blades)3) S21 Connector for centralized control (HA)4) S26 Connector for display PCB5) S28 Connector for signal receiver PCB6) S32 Connector for heat exchanger thermistor7) S35 Connector for INTELLIGENT EYE sensor PCB1) S29 Connector for control PCB1) S27 Connector for control PCB1) S36 Connector for control PCB1) V1 Varistor2) JA Address setting jumperJB Fan speed setting when compressor is OFF on thermostatJC Power failure recovery function (auto-restart)∗ Refer to page 269 for detail.3) LED A LED for service monitor (green)4) FU1 Fuse (3.15A)1) SW1 (S1W) Forced operation ON / OFF switch2) LED1 LED for operation (green)3) LED2 LED for timer (yellow)4) LED3 LED for INTELLIGENT EYE (green)5) RTH1 (R1T) Room temperature thermistor