Hitec RCD SPEC75 User Manual 50633

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Document ID	50633
Application ID	52BHESi//O10c1TBrp+CKg==
Document Description	8
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	36.99kB (462402 bits)
Date Submitted	1999-07-29 00:00:00
Date Available	1999-10-18 00:00:00
Creation Date	2001-06-15 12:50:43
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-06-15 12:50:44
Document Title	50633.pdf
Document Author:	jsoscia

FCC ID: IFHSPEC75
APPENDIX 5
USER INSTRUCTION BOOK
FOURTEEN (14) PAGE USER INSTRUCTION BOOK
FOLLOW THIS SHEET
USER INSTRUCTION BOOK
FCC ID: IFHSPEC75
APPENDIX 5
FCC ID: IFHSPEC75
Congratulations on your purchase of the Lynx 3D computer controlled pistol grip
system Take time to familiarize yourself with these instructions for quick and easy
set-ups and fine-tuning adjustments needed at your track. Now, prepare to take a
step into a new dimension of control with the Lynx 3D from Hitec RCD!
Table of Contents
Pg. 1) Introduction/ External Switches
Pg. 2) Physical Features/ Reference Guide
Pg. 3) Electronic Features/ DCX Receiver,
Pg. 4) O3MC Receiver/ Changing Frequencies
Pg. 5) Battery Charging/ Lefi Hand Operation
Pg. 6) Programming Flow Chart
Pg, 7) Edit Mode Access/ EPA
Pg, 8) Model Reset] Model Copy/ Model Select
Pg. 9) Timer/ Idle Up
Pg. 10) Anti-Lock Brakes/ Aux. CH.3
Pg. 11) Servo Reversing/ Exponential
Pg. 12) Auto and Standard Dual Rates
Pg. 13) Trims/ Brake Depth/ Steering Wheel Tension
Pg. 14) DSC/ Driving Tips/ Final Thoughts
External Switches and their Usage
1. Power switch: Powers the system.
2. Display switch: Allows programming without powering the RF signal. Idle up
switch: Used with gas or 11in vehicles to increase the idle speed at engine start
up. Switch position right is “ON”. Dual rate switch: Selects between *aut0 dual
rate (left) and standard dual rate (right).
3, Throttle trim: Adjusts the neutral point of the throttle and brakes.
4. Steering trim: Adjusts the neutral point for the steering.
Programming Buttons for LCD Screen
5. Edit up/down: Accesses the menu when pushed simultaneously and is used in
scrolling through the menu to select the area to program.
6. Data inc/dec: Adjusts settings when accessing the menu.
7. Aux. +/-: Used for CH3 and changing data in selected menus.
Handle Switches
8: Dual Rate adjust: Selects the amount of travel the steering servo will turn,
9. ATL: Used to adjust the maximum amount of braking that will be applied
when the brakes are fully engaged. (Note: this is also the EPA (endpoint adjustment)
for the brakes)
Physical Features
10. Removable transmitter frequency module.
1 1. External charging jack: Port for charging nicads with the supplied “overnight”
charger:
12. Battery door: Access to the transmitter nicad battery box.
13, Wrist strap mount: For connecting optional wrist or neck strap, part #58311,
14, Brake depth adjustment screw: Limits the amount of physical brake lever
travel
15 , Wheel tension adjustment screw: Increases or decreases the steering wheel
tension.
16. D.S.C. (Direct Servo Control): Controls the receiver directly via the DSC
cable,
17. Right/Lefi hand operation: Transmitter head can be adjusted for right or left
hand user
Electronic Features
The following features are described in depth throughout this manual.
3 Channel FM digital proportional system
10 model memory
Model copy
End Point Adjustment (EPA)
Exponential (Steering and Throttle curve)
Digital Dual Rate (Two modes)
1. Standard
2. Auto ( Dual settings per throttle position)
ATL Brake (Adjustable Travel Limit)
ABS Brakes (Antilock Braking System)
Idle up
Timer (Up/Down) w/ audible alarm
Five position programmable 3ml channel
Digital trims
Audible low battery warning
000000
00000000
Auto Save (Warning: Auto save must engage before programming can
continue or data may be lost. This is done by allowing the EPA settings to
“Auto Save " by letting the voltage re-appear on the screen before proceeding
with any other adjustments, this takes approx. 2 seconds.)
DCX Receiver:
Included in the Lynx 3D (U .S version only) system is the most advanced surface-
use receiver on the market today. The Hitec DCX receiver features dual conversion
technology that filters the transmitter’s signal twice, decreasing the chance of stray
RF “noise” causing interference. This “dual conversion” feature produces the best
performance possible in even the most demanding conditions.
Note: When used with an ESC (Electronic Speed Control) the receiver is powered by the ESC
through the throttle channel. When used in a vehicle without an ESC, such as a gas or glow
engine powered vehicle, the receiver must be powered with an external 4. 8v A6.0v battery pack
that ispluged into the Bat/DSC Channel.
Channel assignments on the DCX receiver.
CH] : Steering
CH2: Throttle
CH3 : Auxiliary
BAT/DSC: Battery and DSC (Direct Servo Control)
HFS—03MC Receiver:
Included with the Lynx 3D (European version only) is the 03MC single conversion
receiver. The 03MC is the best performing single conversion receiver available
today and is also availible separately in the U.S.A. as a lower cost alternative to the
DCX.
Note: When used with an ESC (Electronic Speed Control) the receiver is powered by the ESC
through the throttle channel. When used in a vehicle without an ESC, such as a gas or glow
engine powered vehicle, the receiver must be powered with an external 4. 8v —6. UV battery pack
that isplugged into the Bat/DSC channel.
Channel assignments on the DCX receiver.
CHI: Steering
CHZ: Throttle
CH3 : Auxiliary
BAT/DSC: Battery and DSC (Direct Servo Control)
Changing Frequencies
When using the system in a competition environment it may be necessary to
change the systems operating frequency.
Receiver:
Receiver crystals can be changed within the entire band with no loss of
performance. Use only genuine Hitec Dual Conversion receiver crystals in the
DCX receiver and only genuine Hitec Single Conversion receiver crystals in the
HFS-O3MC receiver.
Transmitter:
The Lynx 3D is equipped with a frequency module and has a crystal plugged into
it. You can change between the 27mhz and 7 Smhz hands by changing the entire
module. To change channels in the transmitter within the band, it is recommended
you replace the entire module tuned to a specific fiequency for maximum
performance.
Transmitter Nicads and Battery Charging:
The Lynx 3D comes equipped with nicad batteries in the transmitter and an
“overnight” charger for your convenience. To charge the batteries simply connect
the charger to the charging port in the transmitter case or in the battery box. This
can be done while the batteries are in or out of the transmitter. Normal charging
time is approximately 12—1 8 hours. Caution: Batteries should not be left on
charge for longer than 24 hours.
Fast Charging TX Battery:
Although not recommend for normal charging, it may become necessary to fast
charge the transmitter battery if it becomes drained or you neglected to charge
them overnight. This can be done with a peak charger but the battery must be
removed from the battery box and connected directly to the charger. This is done
by using a female “S” body connector # 573438. It is recommended the charge rate
not exceed 1.5 amps for quick charge.
Dry Cell version:
Some versions of the Lynx 3D may not include nicads and you will be required to
use AA alkaline batteries. Place the batteries in the battery holder paying close
attention to the polarity. Once the batteries are installed properly the battery holder
may be placed back in the transmitter for use. (Warning: Do not attempt to
recharge alkaline batteries, they will explode)
Left Handed Operation:
The Lynx 3D is capable of converting from right to left handed operation. To do so
please refer to the diagram below.
Now that you have familiarized yourself with the features and functions of the
Lynx 3D, let’s discuss how to program them. Below is a reference of how the
editing menu is laid out.
Programming Flow Chart:
Edit Menu Access:
To access the edit menu, turn the display or the power switch on, while pushing the
“Edit” up/down keys simultaneously. Once you are in the edit menu use the up or
down buttons to scroll through the options. To exit the edit menu push the “Edit”
up/du. keys simultaneously, the battery voltage will appear with the model number
you are currently using, By using the down key the options will appear in the
following order.
EPA: (End PointAdjustmem)
This is the servo end point adjustment for right and left steering, throttle and
brakes. To select between channels 1 (Steering) and 2 (Throttle) use the Aux, +/—
keys. You can adjust the (+) side as well as the (-) side. To select between the two
you must move the steering wheel or trigger slightly until you see the (+/-) symbol
change, then adjust as needed. To reset back to the factory default press the “Data”
inc/dec buttons simultaneously. (Note: (-) Ch 2 is also afiected by the A71 on the handle.)
(Important: Always allow the EPA settings to “Auto Save” by letting the voltage re—uppear
on the sereen before proceeding with any other adjustments, this takes approx. 2 seconds.)
Racer Tip
Steering:
With the wheels trimmed at neutral set the D/R setting to max (I 25 %), next use the EPA setting
to adjust the wheels to maximum right and left without binding the servo. For maximum steering
set the EPA a couple of %points higher once the servo hits the stop. This will give you maximum
steering
Throttle:
The EPA setting is used primmily with gas or nitro vehicles. Pull the trigger and adjust the EPA
so the throttle servo opens the barrel of the carburetor to maximum without binding The brake
setting is a little diflerent, remember the ATL adjustment on the handle can adjust the amount of
brakes, so the best thing to do is set the EPA at maximum (125 %) so the brake does not bind and
lock up when applied. Then use the A TL (same setting as the EPA "— ” ch2) to fine tune the
amount of brake you wish to have when the brake lever is pushed out.
*For electric vehicle with ESC you should not need to adjust the “+ " setting, it is all done when
setting up the ESC. The A 71 can still be used to adjust the maximum braking. Set to 125% when
setting up the ESC.
Model Reset: (Show picture of screen)
This feature will allow you to reset any model back to the factory default setting.
You must select the model to be reset in the mode] select “SL” screen. Once you
have selected the proper model, push the “Data” inc/dec keys simultaneously, there
will be an audible “beep” to verify reset.
Model Copy: (Show picture of screen)
This feature allows you to copy a preexisting program to another model number.
The model you wish to copy “From” must be selected in the model select “SL”
screen. Then using the “Aux.” +/- keys you can select the model you wish to copy
“To”. Once you have selected the proper models push the “Data” inc/dec keys
simultaneously and there will be an audible “beep” to verify copy.
Model Select: (Show picture of screen)
This feature associates a numbers to the model. The letters “SL” will appear on the
screen with a blinking number from 0 — 9. These are your model numbers; they can
be adjusted by using the “Aux.” +/- keys to select the model you wish to program
and use,
Racer Tip
T 0 help remember which model is which number, use a little round sticky dot you can buy at
most stationery stores, mark the model number and stick it on top of the receiver.
Timer:
The timer can be selected to count up or down. Leave the setting at zero if you
wish to count up. To countdown, select the amount of time you wish from 1 — 60
minutes using the “Data” key inc/dec buttons. Once you have selected the time, it
can be activated by pressing the “Edit” DN key afier you are out of the
programming menu.
Racer Tip
You can use the timer two wm/s, to count up or countdown. If you want to see how long your car
will run, use the count up setting. If you are looking to simulate race conditions, set it to count
down, normally 4 or 5 minutes. There will be an audible tone each minute and a countdown for
the last 10 seconds. This way you can tell how the car feels at the end of a simulated race and
see if you have the proper gearing. If your car has slowed substantially before or at the end of
the countdown, gear down a tooth or two on the motor pinion,
Idle Up:
This feature is typically used with gas and/or nitro powered cars or boats, primarily
at start up when the engine is cold. By using the throttle trim with the idle up
svw'tch selected to the right, you can select from a 0 — 50% throttle increase.
Racer Tip
The Idle-up feature is used primarily with gas or nitro powered vehicles, Stat of at 10% and
adjust from there. The purpose is to keep a cold engine running, similar to a choke in a real car.
Keep it on for about a minute, or until the engine is warmed up. (Note: The idle up can also be
used as the primary throttle trim and will not affect the endpoints like the standard trim. Use
this only if you are continually adjusting the drag brake on your vehicle).
ABS: (Anti-Lock Braking System)
This feature is advantageous in applications where hard, late braking is required.
First you must select the point you want the ABS system to override the standard
braking. Move the brake lever to the desired position and push the “Data” inc/dec
keys simultaneously. Next use the “Aux.” +/— keys to scroll through the ABS
menu. Push the (—) key to access the screen to turn the ABS feature on or off. Press
the “Data” ine/dec keys simultaneously to turn it on and off. Next you will need to
select the braking depth. There will be a small “d” flashing with a %, you can
select from 0 — 100% by using the “Data” inc/dec keys. This selects how much
movement there is when the serve is pulsating from the ABS. Next you will need
to select the “SPd” or the “speed” of the pulse by using the “Data” inc/dec keys, 0
is the fastest and 9 is the slowest. Now use the “Data” inc/dec keys to select the
“dly” or delay, this is adjustable from 0 — 9, nine being the longest until the ABS
engages.
Racer Tip
ABS is used primarily with gas vehicles but can be used for electric ’s as well. A good place to
start is by setting the depth to 50% and the speed and delay to "5 ". Experiment with it tofind the
optimum settings for your particular application
Auxiliary Channel 3:
This is the third channel of your three channel radio and can be used for many
different applications. There are 5 programmable settings for the Aux. 3“1 channel.
They can be selected by pressing the Aux. +/- keys to access each point. Once you
have selected the #, they can be adjusted by using the “Data” inc/dec keys.
Continue with all 5 until they are programmed to your needs. If you wish to use
less than the five settings you can inhibit #2, 3 or 4 by pressing the “Data” inc/dec
keys simultaneously, the screen will read “Inh.” to re~activate the inhibited setting
just push the “Data” inc/dec keys simultaneously and select the %. To activate the
third charmel once it is programmed, push the Aux + or — keys to cycle through the
points you have programmed.
Racer Tip
The most common use of this filnction is the manipulation ofa remote needle valve adjustment
for nitro boats. Lets talk about how to set it up. First you want to determine the neutral position
and set this on #3 this will allow you two clicks up and two clicks dawn. Next, program the
settings so you can "lean " or ”richen" the motor for fine-tuning the performance. Do not have
drastic changes; a few %pomts are fine. Experiment yourself to find the optimum settings.
Servo Reversing:
This is used to change the rotating direction of your servos. Use the “Aux.” +/-
keys to select channel #1 (Steering), #2 (Throttle) or #3 (Aux). Normal rotation will
look like “noR” and reverse will look like “REV”, To change these settings you
will have to push the “Data” inc/dec key simultaneously.
Exponential:
This feature is used to change the canoe] travel from linear to non-linear. Use the
“Aux” +/- keys to select channel #1 (Steering) or #2 (Throttle), then use the “Data”
inc/dec to select positive (+) or negative (-) Expoi Positive Expo increases the
sensitivity and negative Expo decreases it. To reset back to the default, press the
“Data” inc/dec buttons simultaneously.
Racer Tip
A very valuable feature, exponential allows you to change the servos travel from proportional to
non-proportional. Negative expo desensitizes the initial movement and positive Expo increases
the sensitivity. So why should you use it? It all depends on your driving style. Here we a few
ideas for why and when to use it.
Steering:
Negative expo is most commonly used for steering This makes the vehicle much less “twitchy”
and easier to control down the straight—aways. A good starting point is ~30%. Remember you
still get all the travel, the servo will catch up as the wheel is iurnedfurthen If you were to use
“+ " Expo the wheels would move more for the same amount of steering input This tends to
make the car very sensitive and will tend to oversteeri T iy changing these settings yourself to see
how it reacts to the different input.
Throttle:
A good rule of thumb is to use negative Expo for modified motors, this gives a broader power
band and positive Expo with stock motors for more punch. Another factor is the track conditions,
use negative for loose conditions and positive for high traction. Again, experimenting will give
you an idea what works best for your particular application and driving style.
10
Auto Dual Rate:
This feature allows you to select individual high and low speed steering travel
First you must set the throttle position where the rate will switch from #1 to #2
This is done by pulling the trigger to the desired position and pushing the “Data”
inc/doc buttons simultaneously. A % will show up on the screen, this is the throttle
% where the rate will change from it] to #2, at this point, if you wish to change it
repeat the procedure again Next, select the travel you wish to associate with the #1
and #2 settings. This is done after you exit the set up menu. Select the dual rate
slide switch to the left, adjust the #1 setting then pull the trigger until the #2
appears to adjust the #2 setting. You will use this feature to gain more high or low
speed steering according to throttle position. (Important: Always allow the D/R
settings to “Auto Save” by letting the voltage re-appear on the screen before
proceeding with any other adjustments, this takes approx 2 seconds)
Racer Tip
Auto D/R
Unique to the Lynx 3D, Auto Dual Rate can be a big advantage when you need to have more
high speed steering than low speed or vice versoL Let 's say your car is understeering (Pushing)
under power but aversteering (loose) when you let ofl’ the throttle entering the cornen With the
Auto D/R setting you can select two diflerent rates that will change at the programmable throttle
position you select (refer to the programming instructions on how to select settings). You would
then select the #1 position to have reduced travel and the #2 position to have more. These
positions will be determined with testing tofind the optimum setting Swap the settings on it] and
#2 for a car that oversteers at high speed and understeers at low speed.
Standard Dual Rate:
A must have for any racer, this feature is adjusted from the digital switch marked D/R on the
handle. To distinguish from Auto D/R to standard Dd? the dual rate switch on the front of the
transmitter must be selected to the right, it will read iii on the display screen when accessed
Use the dual rates to fine tune the handling of the vehicle by increasing or decreasing steering
servo travel. If the vehicle is oversteering (Loose) pull back on the switch to decrease the
steering 17 it is understeering (Pushing) increase the steering by pushing the switch forward The
percentage of steering will automatically pop up on the LCD screen You can bump it one
percentage point at a time for fine-tuning or hold it down for a more drastic change. Continue to
adjust this setting until the vehicle is more controllable and handling the way you want.
11
This concludes the programming portion of the set up. Below are a few more tips
on the Lynx 3D features that can improve your driving skills.
Use of Trims:
Steering:
Make sure you have the steering trim at or very close to 0% when the horn and
wheels are straight. If you change the neutral point too far from center you should
re-position the servo horn to center. If the trims and horn are centered and the
steering is still off, adjust the linkage to compensate.
Throttle:
The trims are a valuable tuning tool and can be adjusted to change the vehicles
handling. (-) Trim will add more “drag brake” when the trigger is released, this
will give the vehicle more steering entering the comer. Too much “drag brake”
will cause the vehicle to oversteer and slow the comer speed. (+) Trim will actually
allow the car to creep forward when the throttle is released so you would have to
hold the brakes to keep it from moving when stopped This will give the car less
steering when entering a corner but also helps keep die comer speed up. You may
have to increase your steering travel to allow you to use this set up. It can be the
hot ticket for Touring cars to achieve maximum corner speed! As always test these
adjustment yourself for your particular application to see how they affect your
vehicle to find the optimum settings.
(Important: Always allow the trim settings to “Auto Save” by letting the voltage
re-appear on the screen before proceeding with any other adjustments, this takes
approx. 2 seconds)
Brake Depth Adjustment:
This feature adjusts the physical limit the throttle trigger moves in providing the
forward and reverse/brake function It is adjusted by the screw on the outside of the
radio opposite the trigger.
Wheel Tension Adjustment:
This feature adjusts the steering wheel tension, The tension is set in the middle
from the factory so it can be increased or decreased as desired.
12
D.S.C. (Direct Servo Control)
This feature allows the operation of the receiver without transmitting a signal,
Connect the DSC cord to the nansmitter by plugging it into the jack on the left side
of the transmitter facet (Note: The transmitter will turn on automatically but will
not be transmitting a signal) Then connect the other end of the cord to the receiver
in the Bat/DSC slot if using in conjunction with an ESC and to the external slot on
the optional switch harness if used with a nicad battery.
Driving Tips:
1. One of the most common problems with new racers is they feel they have to
“race” everyone on the track, every turn Try to focus on your car and your lines
only, don’t worry about the other guys. “Slower is faster!” Don’t overdrive the
track, slow down and set up for each corner early.
2. Don’t try to hit fiill throttle out of every tum and hold it as long as possible, this
just makes you go slower, Try to be smooth and roll on and off the throttle,
don’t just “yank” it!
3. Stay off the boards, take a conservative line at least a foot away. Slow down
and get a few “clean” laps in and your lap times will be faster!
4, Once you are consistent and not crashing, you can start taking a tighter line and
getting on the throttle sooner and braking later to improve your lap times, it’s
all about timing!
5, Remember one important thing about racing. ..“You must first finish to finish
first!”
Final Thoughts:
Many years of experience and research have gone into the development of the
Lynx 3D and we are confident it will help you improve your driving You need to
realize the radio is used for “Fine” tuning and will overcome some problems
associated with the cars handling but a proper set up on the vehicle first will make
going fast a whole lot easier!
13
Servo Selection:
The Lynx 3D system does not come equipped with any servos so you will need to
purchase a servo or two for your particular application. Here is a list of Hitecs car
and boat servos and their recommended applications.
Servo # On-Road On-Road Orr-Road Ofi~Road Off-Road Off-Road Boats Boats
Pan Sedan Nitro Biggy Truck Nitro Electric Nitro
HS-SSMG XX
HS—225BB x x x
HS-225MG x XX xx
HS-235MG Xx xx
HS-300BB X x X x x x x x
HS-525BB x x x x j _'
HS-525MG xx Xx xx xx
HS-545BB I x x
HS-GOSBB x X x x x x x
HS-GOSMG x XX x XX x x
A HS-615MG X xx xx
HS-700BB x
HS-705MG x J
HS-SOSBB XX
HS-925MG xx Xx xx x x
HS-945MG X X X xx xx XX
XX = Indicates best choice.
BB = Resin Geared Ball Bearing Servo
MG = Metal Geared Ball Bearing Servo
14
1.
FCC ID: IFHSPEC75
APPENDIX 6
TRANSMITTER TUNE—UP PROCEDURE
Attach 9.6 Vdc power supply.
Using a spectrum analyzer and a short pick-up antenna, look
for 75 MHz signal with sufficient scan width to see 30-150
MHz spurious.
Adjust T1, T2, T3 and T4, for maximum output at
operating frequency and minimum output at any harmonics.
Repeat Step 3.
Check for minimum emissions from 30 to 760 MHz.
TRANSMITTER TUNE-UP PROCEDURE
FCC ID: IFHSPEC75
APPENDIX 6
FCC ID: IFHSPEC75
APPENDIX 7
CIRCUITS AND DEVICES T0 STABILIZE FREQUENCY
Transmitter output frequency is determined and stabilized by
PLL IC3 and 8 MHz reference crystal controlled oscillator.
CIRCUITS AND DEVICES T0
STABILIZE FREQUENCY
FCC ID: IFHSPEC75
APPENDIX 7
FCC ID: IFHSPEC75
APPENDIX 8
CIRCUITS T0 SUPPRESS SPURIOUS RADIATION,
Final RF amplifier spurious emissions are attenuated by a
“PI" matching network consisting of L2, C39, 041, T4, C42, T5,
C43 and C11.
CIRCUITS T0 SUPPRESS SPURIOUS
RADIATION, LIMIT MODULATION
AND CONTROL POWER
FCC ID: IFHSPEC75
APPENDIX 8
ws/hitLYNxs

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PDF Version                     : 1.3
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Create Date                     : 2001:06:15 12:50:43
Producer                        : Acrobat Distiller 4.0 for Windows
Author                          : jsoscia
Title                           : 50633.pdf
Modify Date                     : 2001:06:15 12:50:44-04:00
Page Count                      : 19

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