User Manual

FCC ID: AZPT2PG-75A

Users Manual

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FCCID_792711

                                 @TOWER HOBBIES®
                                       GYSTEMLIc]=]a]=a]
                                         2TXP 2—CHANNEL AM RADIO CONTROL SYSTEM
                                                                      Instauvertion ManuaL
                                                                   For R/C Canr anp Boat Use
    Before 1 say anything else, I‘d like to say "Thank you!" for making Tower Hobbies® System 3000" 2TXP your choice in 2—channel pistol radios
 Tower Hobbies‘ radio systems, it‘s designed to provide you with many hours of trouble—free operation, as well as a good, solid value in car :
 systems.
     Like our other System 3000 systems, the 2TXP features Surface Mount Technology (SMT) circuitry in the compact 2TX—R receiver. Exceptior
 and reliable, SMT circuits "hang tough" against the slam—bang action that fast—paced R/C can produce. In addition, both the 2TX—R and the transn
 robotically assembled, to ensure your radio system is as near perfect as we can make it,
     You may get a hint of the care and quality built into the 2TXP from its styling. But pick it up for the first time, and you‘ll know how quality fee
 yet surprisingly lightweight, and balanced to keep you in firm control hour after hour. Comfort contributes, as well, from the way the grip fits one
 the firm, virtually slip—free surface a rubber steering wheelt provides the other.
      Go beyond comfort, quality and durability, and you still have performance to enjoy. Steering and throttle control are just the start: there
 proportional trims for fast centering, a knob for adjusting steering rate to your style — and numerous features designed simply for your ease.
     An LED power meter for "at—a—gilance" reference. Servo reversing for easy installation. A quick—change battery set—up for the transmitter — &
 {Battery Eliminator Circuitry) in the receiver. A built—in recharging jack, just in case you switch to optional NiCd batteries. Mini—switch harness, ir
 flag, support and help from our Tower Hobbies‘ Tech Staff, t—year warranty ~— the 2TXP has them all. And as a 2TXP owner, you nave it all, too. Er
 2TXP — and thanks again for choosing Tower Hobbies!

                                                                                                              Sincerely yours,



                                                                                                             [Gone bbleuke
                                                                                                              Bruce R. Holecek
                                                                                                              Founder and Chief Executive Officer,
                                                                                                              Tower Hobbies

    @ QUICK REFERENCE GUIDE
_ |., STEERINGDUAL—RATE; ;                              . STEERING TRIM          .          20 y       ols
  $           .DJUSTMENT"                                ~ADJUSTMENT > . . < ©                  — RECEIVER

                                                                                                                                          THROTTLE SERAYVC


                                                                                                                                          STEERING SERV!
                                                                                     RECEIVER
                                                            stEERINg                 ANTENNA
            sEnvo nevense                                     WHEEL                                                                               w
    SWITCH — THROTTLE                                                                                                                              aee   1
                                                   ThaotiLe thicceer                                                                              A
                                                                                                                 +                    POLARIZEC
                                                                                                                     S                CONNECTOR




                                  BATTERY DooR                                                                           BATTERY HOLDER
      NOTE: This Quick Reference Guide is a condensed version of all information given in this manual. We strongly recommend you first re
      entire manual before operating your System 3000 R/C system.

     1. Install 8—AA alkaline batteries into the transmitter‘s battery holder located in the base of the transmitter, Be sure to install the batterie:
         direction shown on the battery holder.
       ._Install 4—AA batteries in the receiver battery holder.
 ononpspp




       . Connect servos, 4—cell battery pack and switch harness to the receiver as shown above.
       . Turn on the transmitter, then turn on the receiver switch harness.
         Center the steering and throttle trim adjustments and make sure all servos operate according to transmitter movements.
             Turn off the system, receiver first, then transmitter.
             install the entire radio system into your model as shown in the model‘s instruction manual (see above for proper channel usage).
             If you need to reverse the direction in which a servo rotates, locate the servo reversing switch for that particular channel on the face
             transmitter and slide it to the "R" position.
             With the transmitter antenna collapsed, you should maintain smooth control of your model from at least 30 feet away. If not, refer
 o




             2TXP‘s Troubleshooting Guide on page 3.


@THETRANSMITTER”"                             e


               BATTERY HOLDER
                                                                                                            ANTENNA

                                                                                                               STEERING TRIM
                                                BATTERY DOOR                  SWITCH                            ADJUSTMENT
                                                                                 ON q                               THROTTLE TRIM
                                 N                                                                                   ADJUSTMENT

                                                                       *EXTERNAL/               ~
                                                                        CHARGE
                                                                         JACK
                                                  FIGURE 1                                                               FIGURE 2
The transmitter (Tx) requires 8 "AA" batteries. Do not mix old and new cells. Do not mix alkaline, standard (carbon—zinc) or
rechargeable (nickel—cadmium) batteries. To install the batteries, slide open the battery door on the bottom of the Tx (see figure 1).
Install 8 "AA" batteries in the holder following the contfiguration molded into the case, making sure to note the proper polarities on
each cell. Close the battery door.

Turn the Tx power switch on (see figure 2). The red "BATT" LED should ifluminate. If not, turn off the Tx and check the configuration
of the batteries to make sure each cell is firmly in place and in the proper direction. If the red LED blinks, the batteries are low on
pows=r and should be replaced. DO NOT OPERATE AN R/C VEHICLE WITH LOW BATTERIES AS IT COULD RESULT IN
RE JCED RANGE AND POSSIBLE LOSS OF CONTROL OF THE MODEL. Install the Tx antenna by threading it firmly into
place in a clockwise direction. *The Tower Hobbies 2TXP is equipped with an external charge jack for re—charging optional NiCd or
NiMH rechargeable batteries. Never attempt to re—charge alkaline or other non—rechargeable batteries. See your hobby dealer
and ask for a Tx NiCd conversion kit.

During normal conditions, the range, or safe operating distance from the Tx to the Rx is as far as you can clearly see the model.
The 2TXP operates on the 27 or 75MHz frequency bands. There are 30 different channels in the 75MHz band ranging from
75.410MHz (Ch61) through 75.990MH2z (Ch90) and six channels in the 27MHz band ranging from A1 (26.995Mhz) to A6
(27.255Mhz). For safety reasons, you must always be aware of what channel you are using so that no two radios in the same area
are EVER operating. on, the— samefrequency. simultaneously. Mount thefrequency flags that are supplied . with your R/C system
onto.yourTx.antennasothatother.modelers at.thetrackcan identify your channel number.—
@ ~staLLaTION
SERVO                                                                                               ANTENNA SHORTENER
                                                                                                         TEMPLATE
Because there are a variety of specific applications for servos in R/C
modeling, different servos are designed for different applications.
Towet Hobbies offers a targe line—up of servos which you can
choose from (see page 4). For each servo, use a servo horn long
enough to accommodate the entire range of movement for that
pat ular control.


                                                                                                      RECEIVER ANTENNA     FIGURE 3



ARECEIVER, SWITCH HARNESS AND RECEIVER BATTERY (refer to diagram in the Quick
Reference Guide)
Insert 4—AA alkaline batteries into the receiver battery holder in the direction shown on the battery holder. After the servos and
receiver are mounted into your modelt per the model‘s manual, connect the servos and switch harness to the receiver as shown.
The servo connectors are polarized to prevent improper connection, but do pay close attention when connecting them to the
receiver. The black wire goes toward the outside edge of the receiver case. If you are using an electronic speed control (ESC)
connect the ESC‘s throttle lead to channel 2 in the receiver and refer to the ESC‘s instructions for further set—up details (the battery
holder and switch harness can be omitted when using an ESC). Center the steering and throttle trim adjustments (see figure 2).
Turn on the Tx, then the Rx switch harness. Make sure all servos operate according to the movement of the Tx controls. Turn off the
Rx switch harness or ESC, then the transmitter and be careful not to move the servo output arms from their centered position
during installation.

Completely un—wind and route the receiver antenna according to the model‘s instructions. Do NOT cut the antenna or you may
lose adequate operational range. If your antenna is too long to route through your model, make an antenna shortener out of


 @@) INSTALLATIONcontinued ©
cardboard with the template provided in figure 3. Keep the antenna away from moving parts and the power wires in your |
avoid interference. Also, use capacitors on your electric motors as described in your model‘s instructions to help elimina
noise in electric cars.
                                                                                                                  NEUTRAL

STEERING AND THROTTLE
   STEERING DUAL—RATE                            /_‘
      ADJUSTMENT




                                                                                                                                     MECHAN

                                                 fl. l‘?i!‘ll\\
                                                                                                                                   SPEED COI


                                              4N N))
                                                   eAE k!
                                                   Y)
                                                         i-‘%»ll

      FIGURE 4                              ((CS                                              d t hat the car‘s ste
                                                                                                                              trols mov
                                                                                                                    ering conFIGURE   5
                                                                              o bi ndi ng a n
                                           n d ri gh t. B e s u re there is n
                               trol left a
             e he steering con
Steering: Mov t
proper direction (see figure 4). If the steering wheel is turned to the right but the car turns left, move the steering reversin:
to the "R" position, and vise—versa.

Steering Dual Rate: This adjustment (see figure 4), is used to fine tune the steering servo throw. The dual rate knob allow:
decrease the amount of throw that the front wheels have. It also allows you to increase the throw of the front wheels fo
steering. If the vehicle is understeering (pushing), increase the amount of throw to the front wheels using the dual rr knc
vehicle is oversteering (spinning out), decrease the amount of throw to the front wheels using the dual rate knob.
Throttle: Squeeze the throttle trigger. Be sure that your motor can reach full throttle (carburetor fully open on a gas eng
wiper on mechanical speed control moves to furthest forward contact for electric models). If the throttle servo moves in tht
direction, move the throttle reversing switch to the "R" position. With the trigger released, the carburetor should b
approximately 1/16" for idling. The car should brake when the trigger is pushed away. Adjust the idle stop screw on the carb
the engine dies when the brake is applied (see the model‘s instruction manual). With mechanical speed controls, the wipet
be between the forward and reverse contacts when at rest, and should touch the full reverse contact when the trigger is
forward (see figure 5).

Range test the radio system prior to operation. With the Tx antenna collapsed, you should be able to smoothly control mo
gf alt control surfaces on your model from at least 30 ft. on the ground. If not, refer to the 2TXP‘s Troubleshooting Guide bt
  irections. .                                —




@ TROUBLE SHOOTING GUIDE                                                                                                               &—
    Problem:                            Possible Cause:                                  Solution:
    Short range                         Collapsed Tx antenna                             Fully extend the Tx antenna
                                        Interference                                     Check frequencies in area, check Ax instailation
                                        Rx antenna poorly routed                         Re—route Rx antenna
                                        Low Tx or Rx battery                             Replace the batteries
                                        Rx or Tx out of tune                             Send radio to Hobby Services for tuning
                                        Severed Rx antenna                               Send radio to Hobby Services for repair
                                        Crash damage                                    Send radio to Hobby Services for repair
   Short runtime                        Low Tx or Rx batteries                           Replace the batteries
                                        Binding servos causing                           Free binding components in pushrods or moving
                                        excess battery drain                             surfaces, see model‘s manual
   Tx meter low                        Tx batteries need replaced                       Replace the batteries
   Tx meter beyond                     Rx batteries need replaced                       Replace the batteries
   red zone but servos                 Rx switch in off position                        Turn on switch harness
   do not function                     Switch harness connected                         See quick reference guide
                                       incorrectly
   Interference                        Another Tx is on your channel                    Do not operate your system until other
   or servos                                                                            system is not in use
   glitching
                                       Outside interference                             Check your local R/C club for conformation
                                       (Pagers, transmission towers, etc)               of dangerous frequencies in your area
   One glitching servo                 Bad servo                                        Send servo to Hobby Services for repair


Any changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.



Document Created: 2007-04-24 11:01:44
Document Modified: 2007-04-24 11:01:44

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