OFF, press the VOL+, VOL-, , and buttonson the remotecontroller within two seconds. (as shown in Fig. 5 )3. When entering the main unit’s key check mode, “ KEY EX ” will bedisplayed on the LCD of main unit and “ T KEX ” will be displayedon the LCD of remote controller. (If it is notdisplayed, perform theprocedures 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 lights “ T ” and main unit’s LCDlights 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 IC501 55pin 0V 2.4VREC PAUSE IC501 49pin 0V 2.4VEDIT IC501 3pin 1.94V 2.4VSTOP IC501 3pin 0V 2.4VPLAY IC501 48pin 0V 2.4V7. 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 theremote control. / Keys to be pressed are not in order. / When the3 keys apportioned to the respective letters asshown below are allOK, “ 0 ” is displayed.22