FUTABA MAGNUM JUNIOR FP-2PK, MAGNUM JUNIOR FP-2PKA, MAGNUM JUNIOR Instruction Manual
FEATURES OF MAGNUM JUNIOR
The Magnum series are pistol grip type of AM 2 channel digital proportional radio control sets and are the best in their class.
TRANSMITTER FP-T2PKA,
(FP-T2PK)_____________
• Newly designed cockpit type control panel
• Human-engineered size and design are easy to use.
•Steering rate adjuster The steering servo travel volume (right 81 left
evenly from neutral) can be adjusted simultaneously, while running.
•Throttle
ATV
The throttle
servo
travel
volume
can
be adjusted
and set with two trimmers, independently. FP-T2PKA
• Wheel angle adjuster. The turning angle of the steering wheel can
be increased and decreased. This allows operation at the best angle
• Neutral adjuster. The throttle trigger throttle stroke/brake deflection
stroke (back stroke) can be freely selected to match the application
•Servo reversing switch (steering and throttle) is standard Each servo
can be reversed from the outside. This is extremely convenient when
connecting the linkages.
• Since a level meter is provided, battery consumption can be seen at
a glance.
• Crystal can be changed from the outside. Crystal can be immediately
changed during competitions, etc. except 72 MHz and 75 MHz on
transmitter.
• Power supply can be changed to a nicad battery system. FP-T2PKA
RECEIVER
FP-R102GR_____________________
• BEC (Battery Eliminator Circuitry) system allows sharing of the
running Nicd battery and eliminates the need for a regulator and
diode.
•
Crystal socket
uses a new type
of
highly
reliable
subminiature
pins. Reliability is increased and the crystal can be changed from
the outside.
RECEIVER
FP-R104H_______________________
• High performance AM 4 channel receiver in which miniature size and
light weight have been achieved by using the PC board space to the
maximum.
• Short (50cm) antenna designed for miniature models is easy to mount.
(27MHz only)
•
Narrow
band
design using a narrow band ceramic filter
resists
adjacent
channel interference.
• Noise resistance achieved by using a pulse noise rejection circuit.
• New CMOS miniature 1C used in the data coder increases reliability
substantially.
• New type sub miniature, highly reliable pins used at the crystal socket
also increase reliability The crystal can be changed from the outside.
• Thick film gold-plated connector pins eliminate poor contact and
improve reliability against shock and vibration.
SERVO FP-S148, S129, S132H
•Motor
uses
the
newest helical type
rotor
for
improved
output
torque
and smooth operation. (S148, S129)
• These heavy-duty & water/dust tight servos are designed for use with
Futaba digital proportional
radio
control
sets
(S129)
• New indirect driver potentiometer improves vibration and shock re-
sistance and increases neutral precision tremendously.
• Futaba low-power custom 1C provides high starting torque, narrow
dead band, and excellent trackability.
• Fiberglass-reinforced PBT (polybutylene terephthalate) injection
molded servo case is mechanically strong and invulnerable against
glow fuel.
• Strong polyacetal resin ultra-precision servo gear features smooth
operation, positive neutral, and very little backlash.
• Fiberglass-reinforced epoxy resin PC board with thru-the-hole plating
improves servo amp vibration and shock resistance.
• Thick film gold-plated connector pins eliminate poor contact and
improve reliability against shock and vibration.
• Special grommet bushing simplifies servo mounting and improves the
cushioning effect.
• Six special adjustable splined horns are available.
• Maximum output torque of 48.7oz-in.(3.0kg-cm/3 5kg-cm) allows
use in almost any model (S148, S129)
• High operating speed of 0.13 sec/60° makes it perfect when especially
high speed is necessary. (S132H)
SET CONTENTS AND RATINGS
Transmitter
Receiver
Servo
Others
MAGNUM JUNIOR
FP-T2PKA
FP-R102GR or FP-R104H
FP-S148 x 2 or FP-S129 or
FP-S132H
Switch, battery holder, etc.
FP-T2PK
TRANSMITTER FP-T2PKA.
(FP-T2PK)_____________
Operating system : Pistol grip type, 2-channel
Transmitting frequency : 27MHz band 72/75MHz band
Modulation system : AM (amplitude modulation)
Power requirement 12V, AA penlight battery x 8
Receiver
PP-R102GR
________________________
Receiving frequency 75MHz
Intermediate frequency 455kHz
Selectivity :3kHz/-3dB
Receiving range 550 yards (500m) on the ground when
used with FP-T2PKA (At the best radio
wave condition of environment)
Power supply 4.8V to 8.4V
Current drain 7.2V/13mA, 4.8V/33mA
Dimensions 1.46 x 2.19 x 0.75 in. (37 x 55.5 x 19 mm)
Weight 1.34 oz (38g)
RECEIVER FP-R4H,
(FP-R104H)_________________
Miniature 4 channel AM receiver
Receiving frequency :27MHz band 72/75MHz
band
Intermediate frequency :455kHz
Power requirement :4.8V to 6.0V
Current drain :10mA
Dimensions :1.26 x 2.05 x 0.77 in. (32 x 52 x 19.4 mm)
Weight :
1.06 oz (30g
)
Receiving range :
220
yards(200m) on the ground when used
with
the
FP-T2PKA(At
the
best
radio
wave
condition of environment)
SERVO
PP-S148__________________________
Control system :+pulse width control
Operating angle : One side 45° or more
Power
requirement
:
4.8V-6V
Current drain (IDLE)
: 6.0V, 8mA (at idle)
Output torque :
42 oz. in. (3 kg-cm)
Operating speed :
0.22 sec/60°
Dimensions
: 1.59 x 0.77 x 1.4in. (40.4 x 19.8
x
36
mm)
Weight : 1.5 oz. (44.4g)
SERVO
FP-S129____________________________
Control system :+pulse control
Operating angle :Rotary system, one-side 45" or greater
(including trim)
Power requirement :4.8V to 6.0V (shared with receiver)
Current drain :6.0V, 8mA (at idle)
Output torque
:48.7 oz-in (3.5kg-cm)
Operating speed
:0.25 sec /60"
Dimensions :1.79 x 0.9 x 1.71 in. (45.5 x 23
x
43 5 mm)
Weight :2.1 oz (60g)
SERVO
FP-S132H___________________________
Operating system :+pulse control
Operating angle :Rotary system, one-side 40" or greater
(including trim)
Power requirement :4.8V to 6.0V (shared with receiver)
Current drain :6.0V, 8mA (at idle)
Output torque :25.02 oz-in (1.8kg-cm)
Operating speed :0.13 sec/60°
Dimensions :1.46 x 0.71 x 1.20 in. (37 x 18 x 30.5 mm)
Weight :1.13oz(32g)
TRANSMITTER FP-T2PKA (FP-T2PK)
HANDLING INSTRUCTIONS
The name of each part of the transmitter
is shown in Fig. 1 and Fig. 2. Learn them
before operating your set.
The servo reversing switches are assumed to be in the normal
position in the descriptions in this section. When the servo
switches are in the reverse position, operation is the opposite
of that described here.
(1) Steering wheel (rudder)
Steering (rudder) operation.
(2) Throttle trigger (throttle lever)
Engine control/motor control operation.
The throttle neutral position can be set to one of three position by
turning
the 8 throttle
neutral adjuster
with a coin
as
shown
in
Fig. 5. Set it to match the application.
When set to 1 ) the full deflection angle is 40°
When set to 2 ) the throttle throw is 27° and the
brake deflection angle is 13°.
When set to 3 ) the throttle and brake (reverse)
throws are both 20°.
• For engine cars, position 2 is recommended.
• For electric cars, position 3 is recommended when equipped
with reverse mechanism and position 2 is recommended when
equipped with a brake and forward only
(3) Steering trim
Steering (rudder) trim
(4) Steering rate adjuster
The steering servo steering angle can be freely set as shown in Fig. 6
with a ratcheted adjuster installed which enables you to adjust steer-
ing servo travel volume to match a car to the course, even while running.
Neutral
Fig.
5
(8) Throttle neutral adjuster
This adjuster
sets
the
throttle
trigger
neutral
point
as
described
in
(2)
throttle trigger. Set it to the point at which it stops with a click
with a screwdriver, coin, etc.
9 Steering (rudder) servo reversing switch
10 Throttle servo reversing switch
(11) Wheel
angle
adjuster
The wheel angle adjuster changes the operating angle of the (1) Steer-
ing wheel as shown in Fig. 8.
(12) Wheel tension adjuster
This is a phillips head screw which adjusts the steering force of the
steering wheel.
The steering angle can be
set within this range.
30%~100%
Steering servo
Fig.
6
(13) Power switch
When set in the direction of the A mark (upper position), the switch
is turned on and the pointer of the level meter deflects.
(14) Level meter
When the 13) power switch is set to ON, the level meter pointer
should deflect to within the silver zone. If the pointer stops near the
boundary between the silver and red zones, the battery is low, and
the range of the radiowaves will be short. When the level meter
pointer drops to the boundary between the silver and red zones,
change the battery.
(15) Antenna
95cm antenna. It screws in vertically as shown in Fig. 10.
(5) Throttle trim knob
(6) Throttle ATV high side trimmer ATV... Adjustable Travel Volume.
(7) Throttle ATV low side trimmer
Throttle ATV is a device which permits independent adjustment of
the throttle servo left and right sides (from neutral) as shown in Fig.
7 with trimmers (6) and (7). (FP-T2PKA)
ATV is the abbreviation
for Adjustable Throttle
Volume and is an extremely convenient device by
which steering servo travel
volume can be adjusted
freely with two trimmers
preloaded.
The relationship between
two trimmers does not
change even when servo is
reversed.
(6)&(7):only
for
FP-T2PKA.
Throttle Servo
Fig.
7
Remove from
the holder and
screw in vertically.
Fig. 10
(16) Battery cover
When loading (or changing) the eight penlight batteries, remove this
cover as shown in Fig. 2.
(17) Transmitter crystal
When changing the frequency, replace this crystal. Use the AM crystal set (transmit and receive 1 pair) sold by Futaba. The transmitter
crystal is marked TX and the receiver crystal is marked RX. However,
you are not allowed to change frequency by merely replacing crystal
on both 72 and 75MHz.
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