6
Take the neck stand and unplug the black servo cable
from the socket on the left of the test board. Plug the
cable leading to this stage’s servo in its place.
HELP!
If the LEDs flash rapidly when
you run the test at Step 14, you
have a faulty connection.
Double-check the servo cable’s
connection to the socket on the
test board, TURNING THE
POWER PACK OFF BEFORE
YOU DO. If the light still flashes,
carefully unscrew the servo
housing and check that the
internal connector plug is in
place. If you pressed the wrong
button, reset the board by
holding down the TEST/SET
switch for several seconds.
9
The shaft at the top of the servo casing should rotate 45 degrees to the left,
stop, then move back across to 45 degrees to the right. After you have run
the test, turn off the power switch on the battery pack.
TESTING THE SERVO
7
Turn the test board to ON. All the LEDs should blink
twice, then turn off to leave only number 1 lit.
8
Now press the TEST/SET switch
briefly to run the servo test.
Units
Tens
10
Re-familiarise yourself with the lights and switches on the test board, which you
have used to set the servos’ ID numbers. Each time you press the UP switch, the ID
number increases by one, and the result is displayed by the two banks of LED
lights. The top row reads in tens and the bottom in units. For example, to set the ID
to 21, press UP 20 times. This will light up the 20 LED and the 1 LED. (If you
overshoot, press the DOWN switch to take it down one step at a time.) When the
ID number is correct, you set it by pressing and holding the TEST/SET switch.
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