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Speed Control Knob
The speed control knob is located at the back of the joystick housing.
1. Turn the knob clockwise to increase the maximum speed of the wheelchair.
2. Turn the knob counterclockwise to decrease the maximum speed of the wheelchair.
Mode (On/Off) Switch
The mode (on/off) switch is a push button switch located at the front of the joystick. When
an optional actuator control [Single Actuator control, (SAC), Two Actuator Control (TAC)
or Tilt and Recline Control Module (TRCM)] is present, pushing the switch will change
the controller mode to control the optional actuators through the joystick. The mode
switch LED indicator will be ON. Push the switch again to return to normal joystick
driving. The mode switch LED indicator will be off.
Battery Gauge Display (BGD)
Located at the rear of the joystick housing, the BGD provides information on the
remaining charge in the batteries. At full charge, all six (6) segments of the bar graph are
lit. As the battery discharges, the farthest right (GREEN) segment will go out until only
the red bar is lit. At this level, the last red bar will start to flash on and off to indicate that
the user should charge the batteries as soon as possible.
The BGD also serves as a system diagnostic device when a fault is detected by the control
module. A specific number of flashes (up to eight (8) flashes) of the two (2) RED bars
separated by a pause will indicate the type of fault detected. A chart of the diagnostic
indications is given in Diagnostic Codes on page 38.
MPJ Joystick Switches and Indicators
NOTE: For this procedure, refer to FIGURE 3.2, unless otherwise indicated.
Remote On/Off
Input
To Controller
Part No 1114808
Joystick
FIGURE 3.2 MPJ Joystick Switches and Indicators
SECTION 3—JOYSTICK DESCRIPTIONS
Power/Drive Select Toggle Switch
Charger/Programming Input
15
™
™
MK
EX
5
LCD
Speed Control Knob
™
™
and MK
TT-EX
Electronics
5
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