Nvidia 250 - Page 6

- 6 -
January 2010
Getting Familiar with the Devkit
Main Board
The following diagram shows a Harmony main board with power connected. Important connectors are
annotated:
The annotated items include:
• 15V Power jack. Supplies the main power to the devkit (the Harmony devkit as shipped to
developers does not directly support battery power)
• VGA (CRT) jack. Support for 15-pin D-Sub analog display output
• HDMI jack. Support for digital display output
• WiFi antenna jack. Connection point for supplied (or 3
rd
-party) WiFi antenna
• Tegra 250 chip. The heart and soul of the Harmony devkit
• USB-A jacks (3). Support for common peripherals (use of a powered USB hub is strongly
recommended)
USB mini
jack
Dual USB
-
A
jacks
Ethernet
jack
SD Card
slot
Headphone
jack
Microphone
jack
VGA (CRT)
jack
15V power
jack
HDMI
jack
WiFi Antenna
jack
USB
-
A
jack
Expansion board
connectors
Power
button
Recovery
button
Reset
button
Tegra chip
“ACOK”
configuration switch
Power
LEDs