P139-HD Audio System User Manual
GA063-3 Rev G 08/25/2015
Page 28 of 35
10.5.
Accessing the Configuration Web Page
The P139-HD will only boot into Configuration mode if it sees a working network connection. The P139-
HD must be connected to the computer and the computer powered up before powering up the P139-HD.
If the boot sequence halts with a green or red “A” LED that is not flashing, then the MMC card may have
come unseated during flight. Remove and reinsert the MMC card in J7.
The P139-HD will automatically detect the speed of the Ethernet connection, and determine if a crossover
or straight cable is being used. To do this the connecting computer must also be set to auto detect speed
and duplex. This is usually enabled as standard, and may be checked on Windows computers by looking
at the properties of the network adapter in Device Manager and checking the “Speed” setting on the
“Advanced” tab. This should be set to “Auto”.