Robotronics Patches & Pumper Operating Manual Download

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Appendix A: Quick Reference Troubleshooting Chart

More detailed troubleshooting by system is included with each subsystem. For additional help or
parts call our service dept. at 801-489-4466.

Problem

Cause

Solution

Check wires and connector from battery to the
robot.

Push battery connector pins in until it clicks in
place. Pin could have slipped out of position.

Robot Battery System

No functions will operate.

Battery is very low or bad.

Charge battery or replace if it will not charge. Also
test charger.

Battery will not take a full charge.

Needle on charger will not move.

Battery has not been kept fully charged

Charge and discharge repeatedly. Replace
battery if it does not start charging.

Both drive fuses blown.

Replace drive fuses on fuse block.

Drive Motors

Neither drive operates only.
To correctly evaluate drive problems,
look at wheels off the ground.

Radio control drive section problem.
Contact Robtronics for help.
Drive motor pulley loose.

Tighten motor pulley set screws.

Broken connection at motor connector.

Check blue/yellow wires and in line motor
connector at motor

Drive circuit not getting power.

Check drive motor fuses on fuse block (blue
wires). Check wires coming from fuse block to
motor circuit on the main board. Broken solder
joint?

Drive motor damaged.

Repair or replace motor.

One drive only does not operate.

Determine first if it is the drive motor or
drive circuit. To do this swap the wires
that go to the motors at white
connector. Same motor still not working
then motor is bad. Problem switches to
other motor, then problem is in main
box possibly the drive circuit itself.

Drive Circuit on main board problem.

Send main electronics box back to Service Dept.

Drive trim sliders not in center.

Move drive stick sliders to center or position to
neutral the robot.

Drive motors moving on their own even
when the stick is in the center.

Joystick potentiometer broken.

Send to Robotronics for repair.

One motor pulley set screw loose.

Tighten set screws.

Robot not driving straight.

Straight drive adjustment needs to be adjusted.

Find adjustment on the main circuit board. See
diagram of main board in Appendix.

Character Head Turning System

Head is out of position but operates.

Loose head set screw or head was hit.

Re-position head and tighten set screw. Better to
do this with the robot on.

Head motor is keeping head in not
centered position

Head turning pot or pot shaft slipped

Re-center head by adjusting head turning
feedback pot- blue pot below motor. Then tighten
the set screws on the metal tube. See procedure
in head section.

Character board is not getting power

Check fuse on main fuse block.

Head motor is not operating

Broken

wire.

Check power (red/black) and motor wire
(blue/yellow).

Eyelids and Eyes Left and Right

An eyelid or eyes L/R does not operate

Rod linkage came off.

Get to eyelid rods and ball links and re-attach.

Servo wire broken or wire came out of eye
servo board

Trace wires from servo motor of the eyelid or eyes
and follow this wire to the eye servo board to find
problem.

One of the eyelids is at a different level

Eyelid rod bent or eyelid out of adjustment

Straighten bent rod or change eyelid position by
removing the servo arm. Then shorten or
lengthen the rod by twisting the servo arm. You
can also change the position of the servo arm on
the servo shaft.

Connection at eye servo board has come off.

Vehicle- located on underside of upper robot.
Robots with Character- located in character.

Wire(s) bringing 5 Volts and signal to servo
board are not making a connection. Broken
out of 37 pin connector.

Vehicles- locate the wires
(red/black/gray/yellow/black) going from the 37 pin
up to the eye servo board. Repair broken wiring.
Robots with Character- Check gray/yellow/black
and red black to eye servo board.

No operation of any eye functions.

No 5 Volts going to eye servo board.

Find broken wire on red/black or check fuse for
eye servos on fuse block.