4-2 Performance Checks: LCD/LED/Button/Volume Knob Test Mode
Table 4-1. Radio Operation in Test Mode
Button LED LCD Indication Backlight Tone
, Right
Solid Green • ON when button is
pressed.
• OFF following
button released
(after a short period
of inactivity).
, Left
Solid Red – same as above –
SPB1
(Side
Programmable
Button 1)
OFF • ON when button is
pressed.
• OFF after a short
period of inactivity
(even if the button is
continuously being
pressed).
• OFF when button is
released.
SPB2
(Side
Programmable
Button 2)
OFF – same as above –
, FPB1
(Front
Programmable
Button 1)
OFF – same as above – Continuous tone; volume
increases/decreases by
turning the Volume Knob
clockwise/
counterclockwise.
Note: Press to turn
continuous tone OFF.
, FPB2
(Front
Programmable
Button 2)
OFF – same as above –
, FPB3
(Front
Programmable
Button 3)
OFF – same as above – Continuous tone OFF if
previously ON.
PTT Button
(Push-To-Talk
Button)
Solid Amber • ON when button is
pressed.
• OFF following
button released
(After a short period
of inactivity)