Losi LOSB0109JS User Manual

Not responsible for errors. All prices subject to change without notice.

1

Notice

All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, Inc. For up-to-date
product literature, visit www.horizonhobby.com and click on the support tab for this product.

Meaning of Special Language

The following terms are used throughout the product literature to indicate various levels of potential harm when operating this product:

NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND a little or no possibility of injury.
CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility of serious injury.
WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage, and serious injury OR create a

high probability of superficial injury.

WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the
product correctly can result in damage to the product, personal property and cause serious injury.

This is a sophisticated hobby product and NOT a toy. It must be operated with caution and common sense and requires some basic mechanical
ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This
product is not intended for use by children without direct adult supervision. Do not attempt disassembly, use with incompatible components or
augment product in any way without the approval of Horizon Hobby, Inc. This manual contains instructions for safety, operation and maintenance. It
is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid

damage or serious injury.

table of coNteNts

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Register your Losi Product Online . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Getting Ready ......................................................................................................3

Safety Precautions and Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Peak Detection Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Supplied and Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

XXX-SCT Electronics System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

MSC-12L Fwd/Rev ESC ...............................................................................................5

Installing The Transmitter Batteries ......................................................................................5

Installing The Battery Pack(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Losi LSR-3000 Radio System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Precautions for Driving the XXX-SCT .....................................................................................7

Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

RC Terminology .....................................................................................................9

Replacement Parts List ..............................................................................................10

Optional Parts List ..................................................................................................11

Warranty and Repair Policy ...........................................................................................12

Contact Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

FCC Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Compliance Information for the European Union . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Transmission Exploded View ..........................................................................................14

Rear Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Front Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chassis Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Setup Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Setup Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2

iNtroductioN

Thank you for purchasing the Losi® 1/10 XXX-SCT. We are confident
you will be satisfied with the performance of this durable and resilient
vehicle. Please read through the entire manual before setting up and
using your vehicle.

register your losi Product oNliNe

Register your XXX-SCT now and be the first to find out about the latest
options parts, product updates and more. Log on to www.LOSI.com and
follow the product registration link to stay connected.

gettiNg ready

Thoroughly read all the enclosed material, precautions and follow
instructions to avoid damaging your new RC vehicle. If you choose to
not follow these steps or instructions, it will be considered negligence.
If after review of this manual and prior to running your XXX-SCT, you
determine this RC vehicle is not what you want—Do Not proceed and
Do Not run the XXX-SCT. If the XXX-SCT has been run, your local hobby
store will not be able to process a return or accept it for exchange.

safety PrecautioNs aNd guideliNes

Age Recommendation: Not for children under 14 years.
This is not a toy.

Always operate this RC model in a safe, reasonable and cautious
fashion. When driving the XXX-SCT avoid someone being hit by the
vehicle. You may cause serious injury to another person, or to personal
property should you make contact while running the XXX-SCT.

General

This RC Vehicle is not intended for use on public highways or •
roads.
Avoid areas that have many pedestrians or crowds of people.•
Keep in mind that this vehicle is radio controlled and can •
experience moments of radio loss or interference, provide for a
margin of error at all times.
Be aware that the motor and batteries of this RC vehicle will get •
HOT during each use. Be careful not to burn yourself.

Electronic Speed Control (ESC)

Read all safety precautions prior to each use.•
Never leave the vehicle/ESC unsupervised while it is switched on, •
in use or connected to a power source. If there is a short-circuit or
product defect, it could result in fire.
If there are exposed wires, do not use the ESC until you have •
installed shrink-wrap or replaced the wire.
Disconnect the battery from the ESC after use.•
The ESC is not waterproof and should not be exposed to moisture.•
Do not attempt to use 3-cell LiPo; doing so will damage the ESC •
and could result in fire.
Always turn on the transmitter first then the ESC to prevent an •
out-of-control vehicle.
When setting your Electronic Speed Controller:•

Disconnect motor or remove the pinion gear during ESC setup ­or calibration functions.
Keep loose clothing, hair, gloves and fingers away from moving ­parts at all times.

Rubber tires can cause severe injury if there is a failure while ­running the vehicle while on a stand or when being held. En­sure rubber tires are securely mounted to the rims and if not,
re-glue them and check them often for security.

Batteries and Charging

The XXX-SCT uses rechargeable batteries such as NiMH. These
batteries all have special requirements to preserve performance
and last.

Read all instructions provided by the manufacturer of •
the batteries.
Never allow minors to charge battery packs.•
Always check to ensure the polarity of battery connection •
is correct.
Never leave batteries unattended while charging.•
Never charge a battery while it is installed in the XXX-SCT.•
Do not charge any battery that appears to have any damage.•
If there are exposed wires, do not charge or use the battery until •

you install shrink-wrap or replace the complete wire.
When charging NiMH batteries, select a charger to meet your
requirements. You need a charger that is a 100-240V wall charger or
one which requires a 12V power supply. Follow the charger
manufacturer’s instructions and precautions during each use.

Quick start

Note: Please read the entire manual to gain a full understanding of

the XXX-SCT vehicle, fine-tuning the setup and performing
maintenance.

 1. Read the safety precautions found on this page.
 2. Charge the battery pack you have chosen (NOT INCLUDED).

Refer to the Manufacturer’s Supplied instructions for battery
charging information.

 3. Install the AA batteries into the LSR-3000 Transmitter (see

page 5). Use alkaline or rechargeable batteries only.

 4. Install a fully charged battery pack (see page 6).
 5. Turn on the transmitter and then the vehicle. Always turn the

transmitter on before the vehicle and turn it off after the vehicle
has been turned off.

 6. Check steering. Verify that the servo is functioning properly.
 7. Driving the XXX-SCT (see page 7).
 8. Performing maintenance of the XXX-SCT.

33

Peak detectioN charger

Peak detection chargers monitor the battery during charging and
automatically shut off upon full charge. You can either purchase a peak
detection charger that plugs into a household AC wall socket or one
that requires you to also purchase a 12V power supply.

suPPlied aNd reQuired eQuiPmeNt

Supplied tools

LOSB9602

If using a charger other than a peak detection charger, make sure your
battery is fully discharged prior to charging. Many of these have a
15–20 minute timer that allows you to set a charge time. If the battery
is not fully discharged, you can potentially over-charge your battery
pack. Do not charge any battery unattended, and monitor for heat
build up. If the battery pack is more than warm to the touch, immedi­ately discontinue charging. Read all safety precautions supplied by the
charger and battery manufacturer.

XXX-sct electroNics system overview

LOSI MOTOR

LOSI MSC12L

2-Waywrench  •Transmitter/ReceiverBINDPlug•
4HexWrench“L”shaped •.050,1/16,5/64,and3/32•
FlatTurnbuckleWrench •4AAAlkalineBatteries•

Recommended Accessories

Hobbygradeknife  •Needlenosepliers•
Sidecuttingpliers  •Safetygoggles•
Solderingiron  •Double-sidedtape(LOSA4004)•
CA glue (LOSA7880 or LOSA7881)•

Required Equipment

A 6- to 7-cell NiMH battery pack. Or with proper knowledge, LiPo •
battery packs.
NiMH battery charger with automatic peak detection •
recommended (LiPo charger if using LiPo battery).

EC2™ BATTERY PLUG

SETUP BUTTON

BIND PLUG

ON/OFF SWITCH

STEERING SERVO

SPEKTRUM SPMSR300

44

msc-12l fwd/rev esc

2 31

WARNING: This product can become extremely hot when in use,
which could lead to burns.

Features

LiPo, NiMH/NiCd compatible•
4 user selectable modes—Forward/reverse, Forward only •
race, Practice mode with slow acceleration, and Crawler.
High-power FET control with proportional forward and reverse.•
High frequency design delivers smooth speed transition.•
Thermal Overload Protection prevents damage due to over •
current conditions.
Pre-wired with EC3 battery plug and bullet-style motor connectors.•
Designed to operate with stock motors (12 turns or higher).•
Push-button programming with one touch setup.•
Water-resistant•

Specifications

Operation . . . . . . . . . . . . . . Proportional forward, proportional reverse

with braking delay

Input Voltage ............ 4-cell (4.8-volts) to 7-cell (8.4-volts)

DC NiMH/NiCd or 2S LiPo (7.4 volts)

Peak Current ............1000A Forward and 350A Backwards

Continuous Current .......250A Forward and 125A Backwards

Full-On Resistance . . . . . . . 0.0014 Ohms Forward

0.0028 Ohms Backwards

Frequency ..............1kHz

BEC output . . . . . . . . . . . . .5V DC, 1 amp max. at 7.2V

Overload Protection .......Thermal

Dimensions ............. 1.575 in x 1.575 in x 1.063 in

(40mm x 40mm x 27mm)

Weight . . . . . . . . . . . . . . . .1.87 oz (53 g)

Connecting the Battery

The MSC-12L comes pre-wired with an EC3 connector. Use battery
packs from 4-cell (4.8-volt) to 7-cell (8.4-volt) sub-C size battery packs
or with 2S LiPo packs (7.4-volt).

1. Be sure the on/off switch is in the “off” position.

2. Connect a fully charged battery pack to the speed control’s
battery connector.

Adjusting the Transmitter

1. Set the “throttle reversing” switch to the NORMAL position.

2. Set the “throttle trim” to the CENTER position.

Speed Control Programming

Note: While in the programming mode, no power is applied to

the motor.

Battery Selection: When the ESC is powered on, the LED will be
flashing for 2 seconds to indicate the Selected Battery Type. During this
time the user can press the key to toggle between LiPo and NiMH/NiCd
modes. After the key has been pressed (battery type selected), the LED
will flash for 2 more seconds.

A. Turn on ESC and push button once within 2 seconds, push again to

toggle between modes.
B. Red light indicates LiPo mode (with 6-volt cutoff).
C. Green light indicates NiMH/NiCd mode.

One-Touch Endpoint Setup

Note: Please be sure to set all throttle trim settings to neutral

before performing an endpoint setup.

A. Hold button and turn on ESC until the Red/Green light comes on.

Once on, release button.
B. Pull trigger to full throttle position until the green light goes from

flashing to solid. Once solid, your forward endpoint is now set.
C. To set reverse endpoint, push the trigger into the full reverse

position until the flashing red light turns solid. At this point your

reverse/brake endpoint is now set.
D. Return trigger to neutral setting. The green light will now be solid

and you are ready to go!

Selecting Speed Controller Modes

To change modes on your MSC-12L hold the setup key for over
5 seconds while in neutral. Once you find desired mode, simply release
the key and you are ready for action.

Forward/Reverse mode—Solid Green LED
Forward Only mode—Fast Flashing Green LED
Practice mode—Slow Flashing Green LED
Crawler mode*—Solid Green and Red LED

*NOTICE: Crawler mode is for use in rock crawling vehicles only.

Do not use this mode with your 1/10 XXX-SCT. Doing so
may damage the vehicle.

iNstalliNg the traNsmitter batteries

5

iNstalliNg the battery Pack(s)

To install the battery pack, remove the battery hold-down strap by
removing the clip from the front mounting boss. Then, while lifting the
strap, pull forward in one motion.

After you have inserted the fully charged battery pack, reinstall the
battery hold-down strap.

The battery hold-down has a flat side while the other side has
strengthening ribs; the rib side should be face down to the battery.

Insert on an angle into the rear support, and then down on the front pin
and secure it with the previously removed clip.

losi lsr-3000 radio system

The XXX-SCT comes with the Losi LSR-3000 Radio System with
Spektrum™ 2.4GHz DSM® Technology. The system will not interfere
with radio systems operating on legacy frequencies such as 27MHz or
75MHz, neither will you experience any overlapping interference from
other 2.4GHz systems. The transmitter and receiver are bound together
from the factory to uniquely operate together.

Operation and Adjustment

ANTENNA

DUAL RATE ADJUSTMENT

(ST. D/R)

POWER
ON/OFF

STEERING

WHEEL

STEERING TRIM

(ST. TRIM)

THROTTLE TRIM

(TH. TRIM)

THROTTLE/

BRAKE TRIGGER

Power Switch – Turns the transmitter On and Off.•
Dual Rate – (ST.D/R) Adjusts how much the wheels can turn left/•
right in equal proportion.
Steering Trim – (ST.TRIM) Adjusts the “Hands Off” direction of the •
XXX-SCT.
Throttle Trim – (TH.TRIM) Fine adjustment for the throttle and •
brake center.

Receiver

There is no adjustment required of the receiver. Please note the
different slots for connection.

AUXILIARY CHANNEL
THROTTLE CHANNEL

STEERING CHANNEL

BIND PORT

There is Bind, channel one, channel two and auxiliary slots.
The bind slot is used to bind the transmitter to the receiver. The bind

process teaches the transmitter the unique GUID ID of the receiver.
Although the transmitter and receiver come bound, below are the steps
to rebind your transmitter and receiver should the need arise.

Rebind Process

1. Ensure the transmitter and vehicle are both turned off.

2. Using the supplied Bind plug (which looks like a standard receiver
plug with a short wire loop installed), insert the Bind plug into the
receiver slot labeled BIND.

Note: You do not need to remove any other plugs to rebind.

3. With the bind plug installed, turn on the vehicle. Notice the receiver

LED is now blinking.

4. Turn on the transmitter. You will see a similar blinking LED under a

translucent cover.

5. Both the receiver and transmitter LEDs will stop blinking and be on
solid, indicating they are bound.

66