TM 1-1510-225-10 3A-7 NOTE Only one transceiver is available (main), so monitored  transceiver  volume  control  has no effect. (19)   Receiver/Transmitter   or   Number   5  Key.   Pressing    the     RT    key    will    enable    or    disable    a transceiver  or  guard  receiver.    After  pressing  the   RT key,  press  the  number  of  the  transceiver  to  enable  or disable it.  Use the  5  key  also  to  enter  the  number  5 when numeric entry is required. d.  Display Pages.  (1)   Self-Test  Page.    The  Self-Test  page  will appear at system startup.  While displaying this page, the   system   is   performing   internal   self-tests   and   is initializing   memory.      The   software   version   number currently in use displays on this page. (2)   Dim  Display  Page.    Pressing the  MENU key  will  bring  up  the  Dim  Display  page.    Press  the lower soft key to dim the display or the upper soft key to  brighten  the  display.    Pressing  the   CLR  key  will return the display to the Control Display Alpha page. NOTE Pressing  the  on/off  knob  briefly  will return the display to maximum brightness.  (3)   Off Page.  Pressing the on/off knob for at least  4  seconds  will  bring  up  the  off  page.    The  off page  will  flash  for  4  additional  seconds,  warning  the operator  that  the  system  is  turning  off.    After  these 4 seconds have elapsed, the system will turn off. NOTE Pressing   the   CLR   key   will   always   bring display  back  to  the  control  display  alpha page   and   will   put   the   cursor   under   the channel number. (4)   Control   Display   Alpha   Page.      Pressing the  CLR  key  will  bring  up  the  control  display  alpha page.  This display shows frequency by alphanumeric identifier.    The  control  display  alpha  page  shows  the status  of  the  main  transceivers,  guard  receivers,  and which transceiver and channel the primary microphone will  use.    Refer  to  Figure   3A-3.    This  page  displays tone,    transmitter    power    level,    and    repeater/direct information and allows changes on the page. (5)   Control   Display   Frequency   Page.      To bring up the control display frequency page, press the DISP  until  it  appears.    The  control  display   frequency page  is  identical  to  the  control  display  alpha  page, except   that   it   displays   the   frequency   as   the   actual frequency number instead of an alphanumeric identifier. (6)   System  Display  Page.    To  bring  up  the system  display  page  from  the  control  display  alpha page, press the  DISP until it appears.  To bring up the system  display  page  from  any  other  page,  press  the CLR   key   as   many   times   as   is   necessary   until   the control  display  alpha  page  appears.    Then  press  the DISP as many times as is necessary until the  system display  page  appears.    The  following  operations  can be performed from the system display page. 1.   Selecting an active transceiver. 2.   Disabling and enabling a transceiver. 3.   Selecting the preset channel. 4.   Selecting an active guard. 5.   Changing the guard preset channel. 6.   Disabling and enabling guards. (7)   Active/Standby  Display  Alpha  Page.    To bring  up  the  active/standby  display  alpha  page  from the  control  display  alpha  page,  press  the  DISP  key until   it   appears.      To   bring   up   the   Active/Standby Display  page  from  any  other page, press the  CLR  as many  times  as  is  necessary  until  the  control  display alpha  display  page  appears.    Press  the   DISP  key as many  times  as  is  necessary  until  the  Active/Standby Display Alpha page appears.  Use the Active/Standby Display   Alpha   page   to   change   the   active/standby transceiver or preset channel number. (8)   Active/Standby  Display  Frequency  Page.   To bring up the active/standby display frequency page from  the  control-display  alpha  page,  press  the   DISP key  until  it  appears.    To  bring  up  the  active/standby frequency display page from any other page, press the CLR key as many times as necessary until the control display alpha page appears.  Press the  DISP key until the   active/standby   frequency   page   appears.      The active/standby  display  frequency  page   is  identical  to the active/standby display alpha page, except that the frequency  displays  as  the  actual  frequency  number instead of an alphanumeric identifier.