EDU Science 125EL 27MHz Radio Transmitter User Manual 1 18INSTRUCTION MANUAL
EDU Science Co., Ltd. 27MHz Radio Transmitter 1 18INSTRUCTION MANUAL
Users Manual
Revision: 2nd Revision 4/11/05
INSTRUCTION MANUAL for 1:18 RADIO CONTROL ROCK CRAWLER
IMPORTANT INFORMATION
- Carefully read this manual for important safety information and operating
instructions before using your Rock Crawler.
- This Rock Crawler is not intended for children under 6 years old.
- Battery pack is not charged when newly purchased. Battery pack must be charged
for 8 hours for the first and second charges. Subsequent charges require only 4
hours.
- Even with proper care, the battery will not last forever. The life of the battery
depends on how well you follow the Battery Charging instructions and the total
number of hours the battery is used.
- While the battery is charging, the charger may become warm to the touch. This is
normal, and does not indicate a problem.
- This toy must only be used with the recommended charger.
- Do not leave the Rock Crawler out in the rain or let your child wash it with soap
and water.
- Do not store your vehicle near heat or in direct sunlight. Always turn switches
OFF and remove all batteries for storage.
- This unit requires one 7.2V 600mAh rechargeable battery pack (included) for the
vehicle and one 9 volt battery (not included) for the transmitter.
- Parental guidance is recommended when installing or replacing batteries.
- For the transmitter: New and alkaline batteries are recommended to use in this toy
to obtain best and maximum performance.
- You are advised to recharge the battery pack as soon as the function becomes
impaired.
- Users should keep and retain this information for future reference.
- Users should keep strict accordance with the instruction manual while operating
the product.
- FCC Note: The manufacturer is not responsible for radio interference caused by
unauthorized modifications to this equipment. Such modifications may void the
user’s authority to operate the equipment.
FEATURES
- Full function radio control vehicle with forward, backward and steering.
- 4 band user selectable at each frequency.
- Flexible suspension and powerful steering for rock crawling.
- 2-speed gear shifting. ( High gear: Smooth surface or racing)
(Low gear: Rough surface or climbing)
CONTENTS
• Rock Crawler vehicle
• Transmitter
• 7.2V 600mAh NiCd battery pack
• AC/DC charger
• Instruction manual
BATTERY CHARGING
Battery pack is not charged when newly purchased. Battery pack must be charged
for 8 hours for the first and second charges. Subsequent charges require only 4
hours.
1. Plug the charger into a standard 110/120V indoor electrical outlet.
2. Connect the battery pack and charger cables by snapping together the jack and the
socket tightly. (see diagram)
3. After charging, the battery pack will be warm. This condition is normal for fully
charged batteries. If the speed of the car slows down suddenly, it is time to
recharge.
4. To disconnect cables, press down on the clip and pull apart. (see diagram)
CAUTION:
• Do not recharge warm or hot battery packs. Wait 20 minutes until battery
pack has cooled.
• Do not charge the battery that shows leakage or corrosion.
• Recharging near fire or high temperature is dangerous.
• Do not dispose of the batteries in fire.
• Always unplug battery pack when not in use.
• Always remove battery pack from vehicle before charging.
• Dispose of NiCd battery packs properly, do not disassemble.
• Do not use charger for any use other than instructed in directions.
• Non-rechargeable batteries are not to be recharged.
• Rechargeable batteries are only to be charged by an adult.
• Do not mix different types of batteries or new and used batteries.
• Batteries are to be inserted with correct polarity.
• The supply terminals are not to be short-circuited.
NOTE: You may wish to purchase further rechargeable batteries and battery chargers
for longer play sessions. See the order form for more details.
BATTERY INSTALLATION IN TRANSMITTER
1. Unscrew the battery cover at the bottom of the transmitter and place a 9-volt
battery inside following the engraved signs (see diagram).
2. Replace the battery cover.
BATTERY INSTALLATION IN VEHICLE
1. Unscrew the battery cover at the bottom of the vehicle and place the battery pack
inside the battery compartment.
2. Plug the battery connector into the motor harness connector.
3. Please note: if the battery connector will not plug into the motor harness
connector, turn it over and try again! Do not force the battery connector into the
motor harness connector.
4. Replace the battery cover by tightening the screw.
CARE, MAINTENANCE AND YOUR SAFETY
It is recommended that this toy and all accessories be periodically examined for potential
hazards and that any potentially hazardous parts be repaired or replaced.
- Always operate away from areas which can cause radio interference, (eg. power lines,
tall buildings.)
- DO NOT operate near concrete walls which may disturb transmission.
- DO NOT drive car through water or in sand.
- DO NOT bend the antenna.
- Make sure ON/ OFF switch on your vehicle is in the “OFF” position when it is not in
use.
- DO NOT leave the vehicle or transmitter near sources of heat or in direct sunlight for
long periods of time.
- Remove the batteries from the vehicle and transmitter when they are not in use.
- Brush areas where dirt and dust get trapped.
- Wipe body off with a soft rag or damp cloth.
- DO NOT clean vehicle with chemicals or water.
Parents must pay serious attention to handling the rechargeable battery properly:
- DO NOT make direct contact between the battery terminals, as this can cause an
explosion or fire.
- Battery should be charged ONLY by adults.
- Battery should be kept away from children.
- Battery should ONLY be charged by the charger shipped with this Rock Crawler.
- Battery should be placed in a well-ventilated area away from sparks, flames and
smoke when charging.
Parents should also instruct children:
- DO NOT pick up moving vehicle.
- Keep hands, hair and loose clothing away from the tires and the wheel hubs when
power switch is turned ON.
- DO NOT operate your vehicle on the street. Avoid hitting people, pets or home
furnishings.
HOW TO OPERATE THE ROCK CRAWLER
1. Insert the batteries correctly inside battery compartment for vehicle and
transmitter.
2. Set transmitter power button “ON/OFF” to “ON”, the power indicator will light
up. (Diagram)
3. Set vehicle power button “ON/OFF” to “ON”. (Diagram)
4. Set transmitter channel to the same channel on the vehicle.(Diagram)
5. Extend the antenna of the transmitter to full length.
6. Switch both gear selection levers to either high or low position. (Diagram) If one
is in HIGH position and one in LOW position, you may notice the vehicle may
drag and not run smoothly.
(LOW : Rough surface or climbing)
(HIGH : Smooth surface or racing)
FORWARD RUNNING
7. Pull the trigger backward to move the vehicle forward. (see diagram)
8. Pull trigger in further to increase speed.
9. Pull the trigger to full extension for fastest speed (see diagram).
DRIVING IN REVERSE
10. Push the trigger of the transmitter forward (away from you). (see diagram)
STEERING OPERATION
11. To make left or right-hand turns while driving forward, turn the steering wheel to
left or right while pulling the trigger of the transmitter back, (towards you). (see
diagram)
12. To make left or right-hand turns while driving in reverse, turn the steering wheel
to left or right while pushing the trigger of the transmitter forward (away from
you). (see diagram)
STOP OPERATION
13. Release the trigger to stop. (see diagram)
TROUBLE SHOOTING
Problem Possible Cause Correction
Vehicle runs slowly, or
won’t move, or won’t steer
• Batteries are dead or
charge is low
• Batteries are not
placed in
compartment
correctly
• Loose battery
connection
• Main power switch
is not in “ON”
position.
• Hair, carpet or dirt
might be trapped
between wheels
• Resettable fuse
activated to cut the
circuit and protect
the product.
• Check the battery
polarity
• Recharge vehicle
battery
• Replace transmitter
battery
• Check battery
connection
• Turn on power
switch
• Carefully remove
such foreign
materials
• Clear the obstacle
and wait for XX
minutes to let the
resettable fuse cool
down and close the
circuit again.
Loss of control • Out of control
range of distance
• Weak vehicle
battery
• Weak
transmitter
battery
• Radio
interference
• Another radio
control vehicle
using the same
frequency and
channel is
• Extend antenna
fully. Point up
in the air, not at
vehicle. Do not
touch antenna.
• Recharge 7.2V
NiCd battery
pack and/or
replace 9V
(6LR61) alkaline
battery in
transmitter.
• Move to another
location
operated near
your vehicle
• Race against
other vehicles
using different
frequencies or
channel by
switching the
frequency
selector at both
the back of the
transmitter and
the vehicle
inside.
Vehicle stops working after
going through water, mud
or snow
• Water in battery/
electronics/
motor areas
• Turn power
switch off
IMMEDIATEL
Y, remove NiCd
battery pack, dry
inside and out
with clean soft
cloth and allow
to dry overnight.
• Avoid wet
surface, puddles,
rain and snow.
APPENDIX
1. Technical Specifications
Normal Operation Condition: 0-35C
Operation Voltage: 9V for transmitter
7.2V for vehicle
Operation Current: XXX
Operation Duration: 25 minutes after the battery fully charged
Rechargeable battery: 7.2VDC 600mAh
Operation Frequencies: 27MHz
2. FCC Statements
This device compiles with part 15 the FCC rules. Operation is subject to the following
two conditions:
1) This device may not cause harmful interference, and
2) This device must accept any interference received, including interference
that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications.
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is needed.
• Consult the dealer or an experienced radio/TV technician for help.
STATEMENT OF LIMITED WARRANTY
90-day limited warranty on the full function radio control Rock Crawler vehicle. 6-
month limited warranty on the 7.2-volt battery included with the radio control Rock
Crawler vehicle when originally purchased with the radio control Rock Crawler vehicle.
This limited warranty covers the radio control Rock Crawler vehicle and 7.2-volt battery
against defects in materials and workmanship.
This warranty covers normal use. It does not cover damage to the radio control Rock
Crawler vehicle and/or battery arising from unreasonable neglect, accident, misuse or
other causes unrelated to defects in material or workmanship.
Damage caused by operation in wet or sandy conditions is not covered by the guarantee.
This warranty does not cover, and is intended to exclude, any liability on the part of
Funrise Toy Corp., manufacturer of radio control Rock Crawler vehicle. Whether under
this warranty or implied by law, or any indirect or consequential damages for breach of
warranty. Some states do not allow the exclusion or limitation so this limitation may not
apply to you.
Should this radio control Rock Crawler vehicle require service during the warranty period,
please contact Funrise Customer Service at 800-882-3808, for repair or replacement, or
via e-mail at customerservice@funrise.com. Consumers located outside the U.S. and
Canada toll-free calling area, please dial 1-818-883-2400.
This warranty gives you specific legal rights, and you may also have other rights, which
may vary from state to state.
PLEASE SAVE YOUR ORIGINAL SALES RECEIPT.
NOTE:
THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV
INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS
EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER AUTHORITY
TO OPERATE THE EQUIPMENT.