Losi LOSB0202T3 User Manual
Operation Manual
Thank you for choosing the Mini-DT from Losi®. This
guide contains the basic instructions for operating
your new Mini-DT. While the Mini-DT is great for rst-
time RC drivers, it does require some mechanical
experience and/or parental supervision for drivers
under 12. It is critical that you read all of the
instructions in order to operate your model correctly
and avoid unnecessary damage. Please take a
moment to look over all the printed materials before
operating your new Mini-DT.
Mini-DT Manual―Page 2
Safety Precautions
This is a sophisticated radio controlled model that must be operated with caution and common sense. Failure to
operate your Mini-DT in a safe and responsible manner could result in damage to the model and property. The
Mini-DT is not intended for use by children without direct adult supervision. Losi and Horizon Hobby shall not be liable
for any loss or damages, whether direct, indirect, special, incidental, or consequential, arising from the use, misuse, or
abuse of this product or any product required to operate it.
• This model is controlled by a radio signal subject to interference from many sources outside your control. This
interference may cause momentary loss of control so it is advisable to always keep some distance in all directions
around your model as a safety margin to avoid collisions.
• Always operate your model in an open area away from cars, trafc and people.
• Avoid running your model in the street where damage can occur.
• Never run your Mini-DT with low transmitter batteries.
• Carefully follow the directions and warnings for this and any optional
support equipment.
• Keep all chemicals, small parts and anything electrical out of the
reach of children.
Warning
This model may only be powered by the stock 6-cell 7.2-volt NiMH battery pack
(LOSB1202) or a 2-cell 7.4-volt LiPo battery pack (LOSB0871). The use of higher
voltage battery packs will cause ESC damage and void any warranty. To use
brushless or 3-cell LiPo batteries you must change the electronics. Consult your
local hobby dealer or check www.losi.com.
Tools and Items You Will Find Handy
• Soft bristle brush for cleaning
• 5.5mm nut driver for the wheel nuts
• #0 or #1 Phillips screwdriver
• LOSA99100 .050” Allen Wrench
Note: Use only Losi tools or other high-quality tools. Use of inexpensive tools
can cause damage to the small screws and parts used on this type of model.
The Radio System
The following is an overview of the various functions and adjustments found on your Losi/Mini-DT radio system. Since
the Mini-DT operates on a radio signal, it is important for you to read and understand about all of these functions
before driving the model.
The Receiver
1. On/Off Switch: Controls Power to the Receiver/ESC.
2. Servo Port/Plug: Where the steering servo plugs in (note polarity on case).
3. Antenna Wire: Receives the radio signal from your transmitter.
4. Receiver/ESC Power Lead: Connects to the battery lead for power.
5. Frequency Crystal: Determines the frequency/channel you are operating on.
6. Motor Lead: Connects the ESC to the motor.
7. Battery Leads: Connects the motor battery to the ESC.
8. Setup Button: Enters ESC into setup mode.
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Mini-DT Manual―Page 3
The Transmitter
1. Steering Wheel: Controls direction (left/right) of the
model.
2. Throttle Trigger: Controls speed and direction (forward/
reverse) of the model.
3. Antenna: Transmits signal to the model.
4. On/Off Switch: Turns the power on/off for the
transmitter.
5. Indicator Lights: Green (right) light indicates adequate
battery power. Red (left) indicates signal strength.
6. ST. Trim: Adjusts the “hands off” direction of the model.
7. TH. Trim: Adjusts the motor speed to stop at neutral.
8. Steering Rate: Adjusts amount front wheels move when
the steering wheel is turned left and right.
9. ST. REV: Reverses the function of the steering when the
wheel is turned left or right.
10. TH. REV: Reverses the function of the speed control
when pulled back or pushed forward.
11. Bottom Cover: Covers and holds the batteries that
power the transmitter.
12. Transmitter Crystal: Determines frequency/channel
you transmit on. The receiver must have a matching
frequency/channel to operate.
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Changing Frequencies/Channels
The Mini-DT radio operates on 27MHz AM and has 6 different frequencies/channels available. Simply put, a frequency
is like a TV channel. The transmitter you hold in your hand is like the TV station and the model with the matching
crystal is like your TV tuned exclusively to the channel of that station. The Mini-DT radio is equipped with changeable
crystals that allow you to change the frequency/channel you operate on. This is especially useful when you want to run
a group of Losi Mini-DT’s at the same time. When changing crystals/channels, you must always replace the crystals
as a matched set with one each going in both the transmitter and the receiver in the truck. Each of the 6 different
channels are numbered and color-coded. Each set includes a unique crystal for the receiver marked (Rx) and one
from the transmitter marked (Tx). The crystals are changed by gently pulling them out, then lining up the two pins of
each new crystal with its socket and carefully pushing them into place. DO NOT force them as damage can occur. If
they do not slide into the socket easily check for bent or misaligned pins.
Channel 1 Brown 26.995MHz (LOSB1094)
Channel 2 Red 27.045MHz (LOSB1095)
Channel 3 Orange 27.095MHz (LOSB1096)
Channel 4 Yellow 27.145MHz (LOSB1097)
Channel 5 Green 27.195MHz (LOSB1098)
Channel 6 Blue 27.255MHz (LOSB1099)
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