737 MAX Flight Crew Operations Manual
Communications -
Controls and Indicators
5.10.22
MN-FLT-OH-201
1
LCD Display
Displays system status and announcement selection.
2
Mode Control Select Switches
Selectable Modes are:
• ANNC-manual announcement selection mode.
• MUSIC-music selection mode.
• FLIGHT-Flight pattern auto announcement selection mode.
3
Music Volume
Press
▲
(up button) to increase volume or
▼
(down button) to decrease volume
level.
4
KEYPAD
The Keypad is used to select desired pre-recorded announcements or music.
5
START Button
Press the START button to start announcement and music playback.
6
STOP Button
Press the STOP button to stop or cancel the announcement or music playback.
7
READY Indicator
Illuminates when Flight Pattern Block playback is ready to be started.
8
Flash Card Memory Slot
Location of the flash card memory installation to allow download of message
files, music files, control software and flight pattern data.
9
Monitor Jack
Allows a headphone to be connected to review music and messages.
October 26, 2021