3-2 Performance Checking: Handheld Control Head Test Mode
6. On the next button press, the display will clear and 12 icons will appear at the top of the
display.
3.1.3 LED Test Mode
1. Press and hold button P1 after Display Test Mode. The radio beeps once and displays
“LED Test Mode”.
2. Upon any button press, the radio lights on the red LED and displays “Red LED On”.
3. Consequently, upon any button press, the red LED is turned off and the radio lights on the
green LED and displays “Green LED On”.
4. Consequently, upon any button press, the green LED is turned off and the radio shall light on
the yellow LED and displays “Yellow LED On”.
3.1.4 Backlight Test Mode
1. Press and hold button P1 after LED Test Mode. The radio beeps once and displays
“Backlight Test Mode”.
2. The radio lights on both LCD and keypad backlight together.
3.1.5 Speaker Tone Test Mode
1. Press and hold button P1 after Backlight Test Mode. The radio beeps once and displays
“Speaker Tone Test Mode”.
2. The radio generates a 1 kHz tone with the internal speaker.
3.1.6 Earpiece Tone Test Mode
1. Press and hold button P1 after Speaker Tone Test Mode. The radio beeps once and
displays “Earpiece Tone Test Mode”.
2. The radio generates a 1 kHz tone with the earpiece.
NOTE: Not applicable for Handheld. Click next to proceed to Audio Loopback Test Mode.
3.1.7 Audio Loopback Test Mode
1. Press and hold button P1 after Earpiece Tone Test Mode. The radio beeps once and
displays “Audio Loopback Test Mode”.
NOTE: Expect a loud feedback noise.
2. The radio shall route any audio on the mic to the internal speaker.
3.1.8 Audio Loopback Earpiece Test Mode
1. Press and hold button P1 after Audio Loopback Test Mode. The radio beeps once and
displays “Audio Loopback Earpiece Test Mode”.
2. The radio shall route any audio on the mic to the accessory earpiece.
NOTE: Not applicable for Handheld. Click next to proceed to Button/Knob/PTT Test Mode.
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