E.F. Johnson Company 7780 Series Manuel d'utilisateur télécharger pdf (Page 13)

GENERAL OPERATION

SECTION 3 GENERAL OPERATION

3.1 TURNING POWER ON AND SETTING

VOLUME

3.1.1 POWER ON/OFF

Power is turned on and off by pressing the On-

Off/Volume knob. When power is turned on, the radio

goes through a self test. When that is successfully

completed, the unit ID is briefly displayed (except

when a conventional analog channel is selected), a

tone sounds (if tones are enabled), and the radio is

ready for normal operation. If “ENTER PSWD” is

briefly displayed, refer to the next section.

The radio can be programmed* so that one of the

following combinations are selected at power up:

• Last Zone/Last Channel

• Last Zone/Home Channel

• Home Zone/Last Channel

• Home Zone/Home Channel

The Home Zone and Channel are prepro-

grammed. With the “Last Zone”/“Home Channel”

configuration, the programmed home channel number

of the last active zone is selected. If this channel

number is not programmed in the active zone, “Unpro-

gramd” is displayed. With earlier models, the last

selected channel is displayed when powering up on the

last selected zone, and the home channel is displayed

when powering up on the home zone.

NOTE: In dual control configurations (front mount

radio with remote control unit), the power switches at

both control points must be off for power to turn off.

3.1.2 SETTING VOLUME LEVEL

The relative volume setting can be determined

using a reference tone as follows:

• If the key press tones are enabled (see Section 4.5 on

page 19), a short tone sounds when an option switch

is pressed or the Select switch is pressed or rotated.

• If a conventional channel is selected, take the micro-

phone off-hook and if someone is talking, voice may

be heard. If the MON (Monitor) option switch is

programmed (see Section 5.3 on page 25), pressing

it unsquelches the radio and either voice or back-

ground noise is heard. If a SMARTNET/SmartZone

or P25 trunked channel is selected, the radio cannot

be manually unsquelched.

3.2 POWER-UP PASSWORD

3.2.1 GENERAL

The power-up password feature prevents unau-

thorized use of the radio by requiring that an 8-digit

password be entered to make it operational. This

feature is enabled or disabled by programming.

When it is enabled, “ENTER PSWD” is briefly

displayed when power is turned on, the eight-digit

numeric password must be entered by pressing and

rotating the Select switch. If an incorrect password is

entered, “INCORRECT” is displayed and it must be

re-entered.

3.2.2 PASSWORD FEATURES WITH LATER

MODELS

With later revised models (with firmware 1.24.1/

2.2.1/3.2.1 or later), an enhanced password scheme

allows up to four power-on (user) passwords, down-

load and upload passwords, and a master password to

be programmed.

The current User password can be changed if the

“PW CHG” option switch is programmed. Selecting

this function displays prompts for entering and

confirming a new password. Refer to Section 10 for

more information on passwords.

3.2.3 PASSWORD FEATURES WITH EARLY

UNREVISED MODELS

With early unrevised models (with earlier firm-

ware than listed above), only one power-on password

is available, and it cannot be changed by the user. This

* This feature requires radio firmware 2.2.1/3.2.1 or

(ARM) 1.24.1 or later.

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E.F. Johnson Company 7780 Series Manuel d'utilisateur Page 13

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