AV681TX-Kit, Rev B
Page 3
© Nov-03-2008
Figure 4, Side
å
Figure 5, Stand-Off Posts
4
SIDE
å
å
å
å
,
COMPONENTS: See Figure 4.
9
4.1
Install R1, R2, and R3 (3.3K resistors).
9
4.2
Install C8 (.1uF cap).
5
SIDE
ä
ä
ä
ä
,
POST INSTALLATION: See Figure 5.
9
5.1
Carefully cut the standoff post header so that
you have one piece that is 2-pins and two pieces
that are 1-pin.
9
5.2
Install the 2-pin
POWER
post at J1.
9
5.3
Install a 1-pin
GND
post at the hole next to C1+ .
9
5.4
Install a 1-pin
GND
post at the hole next to C7+.
6
SIDE
ã
ã
ã
ã
,
POWER CABLE INSTALLATION AND VREG TEST.
9
6.1
Install a 10-inch (25cm) piece of Red/Black Zip cable to the DC-IN (Red =
+
).
Mark it “
6.5-8.5VDC BAT-IN
.” As an alternate, install your preferred DC power
cable/connector (such as a female BEC).
9
6.2
Install a 10-inch (25cm) piece of Red/Black Zip cable to the CAM PWR Output
(Red =
+
). Mark it “
5VDC @150mA CAM-OUT
.”
9
6.3
Visually inspect side
ã
for assembly errors and solder issues. Correct all
problems before proceeding.
9
6.4
Temporarily apply power (6.5VDC to 8.5VDC) to the DC-IN cable. Using a digital
voltmeter, verify 5.0VDC (±0.15V) at the P1 pads and the CAM-PWR cable.
