PS Engineering PMA8000C Operation Manual page 13

To hear an earlier message, hold the COM RCV button until playback
stops again, and then press again to begin playing the next earlier mes-
sage. Repeat until you hear the message you wanted. Incoming new
messages will stop playback, and you can then restart.
A remote playback switch may also be installed.
Note: when you switch from one transmitter to another, the recordings
are lost.
This chart shows you what the blinking LEDs mean.
What is blinking?
COM 1 or COM 2 XMT
COM or COM 2 RCV
ISO mode in ICS
Mute and SPR buttons
May 2015 PMA8000C Pilot Guide
Blinking indicators
How often?
Every 1 second Pilot or copilot is transmitting
Every 3 seconds Monitor mode activated
Every 3 seconds Pilot has music in ISO
Every 1 second PA Mode active
202-890-0303
What it means
Page 13