BrightSign Compact
This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Roku assumes no
obligation regarding future manufacturing unless otherwise agreed to in writing.
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(3) Power LED comes on, Red led is out, unit is booting.
Serial port tests are in order. Connect a PC to the HD2000 using a null modem cable (Wire up 2-3, 3-2, 5-
5). Set the terminal program to 115200,N,8,1. In order to see all boot messages, hold S1 down while
powering the unit on or while using S2 to reset the unit.
A)
If the serial port is not working, then check U6 and P4.
B)
Use the “dir” command to test reading the SD flash card. Use “dir USB1:” and “dir USB2:”
command to test reading from external USB mass storage devices. If the SD card fails to read,
check U12 and the SD socket, and associated resistors. If the USB mass storage reads fail, check
U30, U32, and P9.
C)
Use the “videoplay” command to test the video and audio outputs, for example “videoplay
test.mp3” or “videoplay test.mpg”. If the analog audio fails to work, check U1. Check for the
audio master clock on R7, should be 11.288MHz or 12.288MHz. Check for audio bit clock R9,
should be ¼ of the MCLK. Check for LRCLK on R11, should be 44.1KHz or 48KHz. Check for
audio data on R13. Check passives on outputs of U1. The voltage output of the audio during this
test (fullscale) is 2V RMS, with no load. Check AUD_AVCC5V power supply.
D)
Connect a Roku Brightsign Compact Test board to the DA15. Run the following script to test the
LEDs. If any LED fails to come on, then check U8, U9, U10, U11 and the resistors on the outputs
of these.
[TBD: Need GPIO LED script for Compact inserted here]
E)
Connect a Roku Brightsign Compact Test board to the DA15. Run the following script to test the
buttons on the test board. Press each button and the screen should show which button is pressed. a
led should blink on and off several ight for each button pressed. If any switch fails to read, or is
stuck on, then check U7 as well as the resistors and beads on the inputs to U7. This script will test
the side panel switch as well as the switches connected to the DA15.
[TBD: Need GPIO button script for Compact inserted here]
F)
Connect a Ethernet cable to a switch. Exit the shell by typing “exit” and return. Now type
“ifconfig eth0 192.168.1.21” (Use an unused address on your network). The switch should show
link on, and you should be able to ping the unit and ping other things on your network. If this does
not work, check U5, Y1, T1, P3 and associated passives.
