1. Set the battery and connect the remote controller.2. Turn off the power. Then, with the main unit’s HOLD switch at OFF,press the VOL+, VOL-, , and buttons on the remotecontroller within two seconds. (as shown in Fig. 5 or Fig. 6)3. When entering the main unit’s key check mode, “KEY JP1” or “KEYJP2” will be displayed on the LCD of main unit and “T KJP1” or “TKJP2” will be displayed on the LCD of remote controller. (If it is notdisplayed, perform the procedures written above again.)4. Confirm the display of LCD by pressing any keys on the main unit.There is no order to press the keys.Mian unit’s keys LCD display positions and lettersHOLD OFF 1st. 2nd. letters are AAREC PAUSE 3rd. 4th. letters are BBEDIT 5th. 6th. letters are CCSTOP 7th. 8th. letters are DDPLAY 9th. 10th. letters are EE5. Remote controller’s LCD [(GH) area only] lights “T ” and mainunit’s LCD lights all when you can detect all keys.6. Perform below voltage check about the keys come under if youcannot detect the key.Main unit’s keys Check points ON OFFHOLD TP403 0V 2.2VREC PAUSE IC501 3pin 0.12V 2.2VEDIT IC501 3pin 1.96V 2.2VSTOP IC501 3pin 1.05V 2.2VPLAY IC501 3pin 0V 2.2V7. When the keys are ready for detection, press the PLAY key of theremote control.8. Pressing each key mounted to the main body, make sure ofdisplayed three letters (4th ~ 6th letters) on the right side of the24