NIDEC MOBILITY G8D-671S-B Keyless Entry System User Manual
OMRON Automotive Electronics Co. Ltd. Keyless Entry System
User Manual
G8D-671S-B Receiver, RF Keyless Entry System Table of contents 1. Constitution of the Radio Frequency Keyless Entry system with Door Lock Controller for vehicle ...................................................................................... 2. User’s manual (provisionally) .......................................................................... 3. Block diagram ................................................................................................ 4. Specification ................................................................................................... 5. Features .......................................................................................................... 6. PCB ................................................................................................................ 6.1 Parts layout ................................................................................................. 6.2 Pattern layout .............................................................................................. Connector ..................................................…................................................. 7. 1. Constitution of the Radio Frequency Keyless Entry System with Door Lock Controller for vehicle The radio frequency keyless entry is a system that it controlls locking and unlocking the door by wireless remote controller. This system consists of two components. The TRANSMITTER is a device that transmits the signal when the button is pressed. The transmission signal consists of several synchronous codes, unique identification code, security code and function code. The RECEIVER is fixed inside the vehicle. It works intermittently to prevent the battery exhaustion. When the receiver detects the synchronous code, it runs continuously to receive the signals completely. After receiveing the signal, the receiver decides which operation will be performed. The user can select the following operations by pressing the button of the remote transmitter. OPERATION ACTION LOCK Lock the door UNLOCK unlock the door (the driver side first, then all doors) PANIC Beep the horn and flush the small light. (it continues 30 seconds) This receiver also controls wired operation. It is available to control the door lock status by using the silcon switch or the remote door control switch (both driver’s and passenger’s side). Transmitter f = 315.1MHz 2. User’s manual (provisionally) REMOTE TRANSMITTER You can lock and unlock your vehicle with the remote transmitter. LOCK When you push the LOCK button, all the doors will lock. You cannot lock any of the doors with the remote transmitter if the key is in the ignition switch. UNLOCK When you push the UNLOCK button once, all the door s will unlock. If you unlock the doors with the remote transmitter, but do not open any of the doors within 30 seconds, the doors will automatically relock. You cannot unlock any of the doors with the remote transmitter if the key is in the ignition switch. PANIC MODE Panic mode allows you to remotely sound your vehicle’s horn to attract attention. To activate this mode, press and hold the PANC button for about one second. Your vehicle’s horn will beep for about 30 seconds. To cancel panic mode before 30 seconds, press any button on the remote transmitter. You can also turn the ignition switch to ON. Panic mode will not activate if the ignition switch is in ON. 4. Specification 4.1 CPU Type Μ37540(8bit) Manufacturer: MITSUBISHI ROM 16K bytes RAM 512 bytes EEPROM(Outside) 2K bytes Clock frequency 7.37MHz Clock frequency generation Ceramic resonator Package 32pin QFP 4.2 RF block Local clock frequency 325.8MHz Frequency generation Crystal resonator Modulation FSK Bandwidth ±200KHz Carrier Detect Sensitivity 41 dBuV 4.3 Others Dimension 80 mm× 70 mm×25 mm Weight 87 g Battery Car Battery (DC 12V) Operation Voltage DC 12V, 10mA Operation temperature -30℃ ~ +80℃ 5. Features 5.1 Integrated controller The controller works both wireless and wired operation. You can use it remotely as the receiver of the keyless entry system. You can operate the door lock remotery using the remote transmitter. It is also avialable to release the boot. When you turn the door lock switch, the controller works as the door lock controller. The controller monitors the switch related to the door lock. In case of the status of the switch changed, the controller will detect and output the signal to the door lock actuator. 5.2 Battery saving The receiver works intermittently to reduce the battery consumption. The microcomupter mounted on the receiver controlls the power supply for the RF circuit. In case of the microcomputer detects the wake-up signal during the power supplied, the microcomputer continue supplying the power until the data frame will be received.
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