P139-HD Audio System User Manual
GA063-3 Rev G 08/25/2015
Page 27 of 35
9.10.
Configuration File Storage
When the P139-HD configuration is changed, a copy is saved on the MMC card as two files:
config.yam
config.md5
These files (and all files on the MMC) should NEVER be modified by the user.
If you require technical support or a major configuration change not available through the Configuration
Web Page, these two files should be copied from the MMC card and emailed to Eagle Copters, to
preserve any settings you have changed on the web page.
10. Troubleshooting
10.1.
Description
The P139-HD Audio System is customized to individual customer requirements, and depending on the
installation this may make some operational features different from as described in this manual. This
section gives a brief overview of possible control settings that might make the Audio System not operate
as expected, and some basic troubleshooting procedures.
10.2.
Power LED
The Power LED will light up if there is power to the Audio System and one of the internal voltage
regulators is working. The Configuration Web Page may be used to check the voltages on all the internal
power supplies on the audio system.
10.3.
Status LEDs
The P139-HD has three Status LEDs, labeled A, B and C. These LEDs have different meanings
depending on the status of the Audio System.
The A LED is the main status LED for the Audio System:
On power up the LED changes color from red to green several times.
If power up is successful, the LED flashes green at high speed.
If there is a fault, the LED will be steady red. This is usually caused by problems with loading a
new configuration or firmware upgrade from the MMC.
The B and C LEDs have two functions:
On power up the B and C LEDs will be off while the P139-HD searches for configuration or
firmware updates. The two LEDs will turn green once any updates have been loaded.
If there is a fault, the two LEDs will be steady red, along with the A LED.
Once the system is op
erating (A LED flashing green), the LEDs act as a ‘peak indicator’ for audio
inputs. If the mic inputs on J1 or receive inputs on J3 are loud enough to cause audio clipping, the
B LED will turn red. Inputs on J2 and J4 will set the C LED red.
10.4.
Functional Checks
If the Audio System does not appear to be working correctly, please check the following:
Audio System Emergency Isolation Mode
Switches should be set in the ‘Normal’ position.
Ensure ICS is not Disabled or Isolated.
Ensure Radio Volumes are set as described in Section 8.