Performance Checking: Handheld Control Head Test Mode 3-3
3.1.9 Button/Knob/PTT Test Mode
1. Press and hold button P1 after Audio Loopback Earpiece Test Mode. The radio beeps once
and displays “Button Test” (line 1).
2. The radio also displays the button/knob/PTT Button Command Opcode (BCO) and state
(BCO/state) on the screen (line 2) upon any button state changes.
3. The radio must be powered off to end Test Mode.
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