SPEED CONTROL DOES NOT WORK
Problem: Motor and/or Steering Servo are dead.
1) Recharge discharged batteries.
2) Bad power plug(s).
3) Damaged connection between ESC and receiver. Check plug prongs.
4) Reverse polarity at battery.
5) Internal damage.
6) Over temperature protection of speed control has engaged. Check for
proper installation of speed control, allowing sufficient air flow to
heat sink. Allow ESC to cool down until LEDs indicate ESC is ready
to operate.
Problem: No reverse.
1) Transmitter adjusted incorrectly. Center ATV, ATL and radio trims.
2) Transistor is blown. Unit will require service. See "Service Procedures"
Problem: Case is melted.
Internal damage.
Unit will require service. See "Service Procedures"
Problem: ESC runs with switch off.
Drive transistor is blown.
Unit will require service. See "Service Procedures"
SPEED CONTROL WORKS (BUT OTHER PROBLEMS EXIST)
Problem: Receiver glitches or stutters during acceleration.
1) The 2 required motor capacitors are not installed or have broken.
2) Receiver is glitching due to a large voltage drop during acceleration.
Use either an external battery or a non-BEC receiver designed to be
used with ESCs.
3) Receiver mounted too close to ESC.
4) Bad power plugs or input harness.
5) Receiver mounted flat in chassis.
Problem: Model runs slowly or has no acceleration.
1) The ESC is not set up properly.
2) Bad plug(s), battery, and/or motor.
3) Transmitter improperly adjusted.
4) Low battery (re-charge)
Problem: Steering Servo works and motor is dead.
Motor brushes are hanging up, are worn out, or motor is bad. Clean or
replace brushes.
Problem: Overheated motor or hot power plugs.
1) Motor is geared too high-reduce gearing
2) Binding in the vehicle's drive train-eliminate binding
3) Defective or loose plug(s)-repair or replace the plug(s)
4) Shorted motor-replace motor
Problem: Motor runs backwards while forward LEDs are on.
Motor wired backwards.
Problem: Motor runs backwards when forward command is given.
(LEDs match the motor direction.) Put the throttle reversing switch in
the opposite position.
Problem: Model runs, then motor goes dead.
Binding drive train, bad motor or incorrect gear ratio for track
conditions. Adjust gear mesh, replace motor or change gear ratio.
TROUBLE SHOOTING GUIDE
© Copyright 2001 V1.0 DTXZ2553 For DTXM1200
Before you begin this step, your speed control should be plugged into
the receiver and your transmitter should have already been adjusted.
Before you connect the main battery pack to the speed control, make
sure that the ESC switch is turned off. Connect the battery pack to the
speed control and turn on the transmitter. Make sure the throttle
trigger is in the Neutral position before turning on the ESC.
1) With the transmitter throttle trigger in neutral, turn on the ESC. The
green LED will light up for about 1 second.
2) Pull the throttle trigger to full forward, the red LED will light up to
indicate the full forward is now being operated.
3) Push the throttle trigger to full reverse, the green and red LED will
light up to indicate full reverse is now being operated.
4) The ESC will hold this setting until it is reset.
5) Repeat this procedure if any or all steps fail to operate as expected.
(Note: The motor does not function during the set-up process.)
Note: If the throttle is set to full forward on the transmitter and you get
reverse operation instead of forward operation, the throttle-reversing
switch on the transmitter must be switched.
STEP 5
SPEED CONTROL SET-UP
Radio interference can cause the speed control to rapidly switch
between forward and full brakes, causing overheating of the brake
transistors and possible damage to the ESC. Here are a few of the most
common causes of radio problems:
•Capacitors not installed on motor. Electric motors generate radio
noise that can interfere with the receiver. To prevent radio problems,
every motor should have two 0.1µF (50V) ceramic capacitors installed
(See step 2).
•Receiver mounted on graphite or metal chassis. Graphite and
metal chassis transmit radio noise generated by the motor. To prevent
radio problems, mount the receiver on the rear shock tower or away
from the chassis. If the receiver is mounted on the chassis, stand it
on its side with the crystal as far away from the chassis as possible.
•Receiver antenna cut or coiled wrong. If the receiver's antenna is
cut, the range will be reduced. The antenna should be mounted away
from the motor and power wires. Coiling the antenna wire, or keeping
the entire antenna inside the body will reduce the range and increase
the risk of radio problems.
PREVENTING RADIO PROBLEMS
PLEASE NOTE: Speed controls that operate normally when received
will be charged a minimum service fee and return shipping charges.
Before sending your speed control in for service, it is important that
you review the Trouble-Shooting Guide in this instruction set. The
speed control may appear to have failed when other problems exist in
the system such as a defective transmitter, receiver or servo, or
incorrect adjustments/installation.
•Hobby dealers are not authorized to replace speed controls thought
to be defective.
•Do not cut the input harness, switch harness, or power wires of the
speed control before sending it for service. A fee will be charged for
cut wires which must be replaced for testing.
SERVICE PROCEDURES
DuraTrax warrants this product to be free from defects in
materials and workmanship for a period of 120-days from the date
of purchase. During that period, we will repair or replace, at our
option, any product that does not meet these standards. You will
be required to provide proof of purchase date (receipt or invoice).
If, during the 120-day period, your DuraTrax product shows defects
caused by abuse, misuse, or accident, it will be repaired or replaced
at our option, at a service charge not greater than 50% of the
current retail list price. Be sure to include your daytime telephone
number in case we need to contact you about your repair.
This warranty does not cover components worn by use, application
of reverse voltage, cross connections, poor installation, subjection
of components to foreign materials, any alterations to wires, or
tampering. In no case shall our liability exceed the original cost of
the product.
Your warranty is voided if...
A. Plugging the motor connectors into the battery pack.
B. You allow any wires to become frayed which could cause a short.
C. You subject the ESC to improper voltage on the inputs.
D. You tamper with any of the electronic components.
E. You allow water, moisture, or any other foreign material onto the
PC board.
F. You apply too much pressure when installing the heat sink.
Under no circumstances will the purchaser be entitled to consequential
or incidental damages. This warranty gives you specific legal rights, and
you may also have other rights which vary from state to state. If you
attempt to disassemble or repair this unit yourself it may void
the warranty.
For service to your DuraTrax product, either in or out of warranty,
send it post paid and insured to:
HOBBY SERVICES
1610 Interstate Drive,
Champaign, IL 61822
(217) 398-0007
Internet Address: www.duratrax.com
120-DAY LIMITED WARRANTY
