3 BASIC OPERATION3-2Turning ON the transceiverNOTE: Before using the transceiver for the first time,the battery pack must be fully charged for optimumlife and operation. See the INSTRUCTIONS fordetails.Portable:Rotate [VOL] to turn ON the transceiver.• The battery voltage or the opening text may be displayed,depending on the presetting.Mobile:Push the Power key to turn ON the transceiver.• The opening text may be displayed, depending on thepresetting.D Entering the password1. If the transceiver is preset for a Power ONpassword when turning ON the transceiver, the“User Password” screen is displayed, as shown tothe right.2. Push [Up], [Down], [Right], or [Left] to select anumber, then push [OK] to enter.3. Repeat step 2 to enter the password.4. After entering the correct password, thetransceiver automatically displays the standbyscreen.[VOL]NOTE: If the transceiver does not display thestandby screen after entering the password, theentered code may be incorrect. In this case, push[Back] several times until you delete the incorrectcode, and then enter the correct code.D Adjusting the audio levelWhen receiving a call, rotate [VOL] to adjust the audiooutput level to a comfortable listening level.Power key[VOL][Up], [Down],[Right], [Left][OK][Up], [Down],[Right], [Left][OK]TIP: For the Portable Ten-key type transceiver oroptional HM-220T/HM-221T, a user can enter thepassword with the keypad.Standby screen