JR XP652 User manual

6-CHANNEL COMPUTER RADIO
INSTRUCTION MANUAL
FOR AIRPLANE AND
HELICOPTER

3
XP652 MANUAL Decal Sheet
Included with the XP652 radio system is a switch/function
decal sheet. These decals have been provided as a guide
to specific switch positions, functions, and abbreviations
used when operating the XP652.
The four small decals help identify switch positions and
use for helicopter and aircraft modes.
The large decal at the bottom of the sheet gives
abbreviations and definitions for all of the aircraft and
helicopter functions. The functions decal will prove to be
a helpful guide for making program changes to your
XP652 both in the shop and at the flying field.
We strongly encourage all prospective and current R/C
aircraft pilots join the Academy of Model Aeronautics. The
AMA is a non-profit organization which provides services
to model aircraft pilots. As an AMA member you will
receive a monthly magazine entitled MODEL AVIATION, as
well as a liability insurance plan to cover against possible
accident or injury. All AMA charter aircraft clubs require
individuals to hold a current AMA sporting license prior to
operation of their models. For further information you can
contact the AMA at:
Academy of Model Aeronautics
5151 East Memorial Drive
Muncie, IN 47302
[phone]
Thank you for purchasing the JR XP652 6-Channel Radio
System. This unit has been designed to provide the
modeler with a high quality, user friendly radio system
that can be depended upon for years to come.
It is important that you carefully read this manual before
attempting to operate your XP652 System. Please pay
particular attention to Page 13, Chapter 4 Charging Your
XP652 Radio System Prior to Installing.
XP652 SWITCH FUNCTION DECAL SHEET
AMA INFORMATION
FLAP
UP
DOWN
OFF
ON
MIX OR
GEAR
DOWN
UP
OFF
ON
MIX
OR
THROTTLE HOLD
NORMAL
HOLD
FLIGHT MODE
NORMAL
STUNT
72MHz
FM TX
REV – Servo Reversing
AIRPLANE
D/R – Dual Rates
SB-TRIM – Sub-Trim
TRV ADJ – TravelAdjustment
MIX A-R – Ailer./RudderMixing
MIX E-F – Elevator/Flap Mixing
OFFSET – Landing Elev.Offset
REV – Servo Reversing
D/R – Dual Rates
SB-TRIM – Sub-Trim
HLD – Throttle Hold
HELICOPTER
TRV ADJ – TravelAdjustment
PLN
P2N
PHN
PLS
P2S
PHS
PLH
P2H
PHH
TLN
T2N
THN
TLS
T2S
MIX
RVU
RVD
OFFSET – Rudder Offset
– Pitch Low Normal
– Pitch Med. Normal
– Pitch High Normal
– Pitch Low Stunt
– Pitch Med. Stunt
– Pitch High Stunt
– Pitch Low Hold
– Pitch Med. Hold
– Pitch High Hold
– Throttle Low Norm.
– Throttle Med. Norm.
– Throttle High Norm.
– Throttle Low Stunt
– Throttle Med. Stunt
– Revo Mixing
– Revo Mixing Up
– Revo Mixing Down
DECAL SHEET
HELICOPTER
DECAL POSITION
Top View (Mode II)
AIRPLANE
DECAL POSITION
Top View (Mode II)
REAR DECAL POSITION
Airplane and Helicopter
INTRODUCTION TO THE XP652 RADIO SYSTEM
XP652 FUNCTIONGUIDE
Tx BACK
HELI
TOP
LEFT NORMAL
STUNT
FLIGHT MODE NORMAL
STUNT
THROTTLE HOLD
AIR
TOP
LEFT
HELI
TOP
RIGHT
AIR
TOP
RIGHT
MIX OR FLAP
DOWN OFF
UP ON OFF DOWN ON UP
GEAR OR MIX
Airplane
REV ServoReversing
D/R DualRates
EXP Exponential
SB-TRIM Sub-Trim
TRVADJ TravelAdjustment
MIXA-R Aileron/RudderMix
MIXE-F Elevator/FlapMixing
MIXDIF Differential
OFFSET Flap/ElevatorOffset
MIXA ProgrammableMixA
MIXB ProgrammableMixB
MIXC ProgrammableMixC
OFFSET TrimOffsetMemory
Helicopter
REV ServoReversing
D/R DualRates
EXP Exponential
SB-TRIM Sub-Trim
TRVADJ TravelAdjustment
HLD ThrottleHold
PLN PitchLowNormal
P2N PitchMed.Normal
PHN PitchHighNormal
PLS PitchLowStunt
P2S PitchMed.Stunt
PHS PitchHighStunt
PLH PitchLowHold
P2H PitchMed.Hold
PHH PitchHighHold
TLN ThrottleLowNorm.
T2N ThrottleMed.Norm.
THN ThrottleHighNorm.
TLS ThrottleLowStunt
T2S ThrottleMed.Stunt
MIX RevoMixing
RVU RevoMixingUp
RVD RevoMixingDown
MIXA ProgrammableMixA
STT StuntTrim
CCP CCPMSwashplateMix
Offset TrimOffsetMemory
XP652FUNCTIONGUIDE
Tx BACK
HELI
TOP
LEFT NORMAL
STUNT
FLIGHT MODE NORMAL
STUNT
THROTTLE HOLD
AIR
TOP
LEFT
HELI
TOP
RIGHT
AIR
TOP
RIGHT
MIX OR FLAP
DOWN OFF
UP ON OFF DOWN ON UP
GEAR OR MIX
Airplane
REV ServoReversing
D/R DualRates
EXP Exponential
SB-TRIM Sub-Trim
TRVADJ Travel Adjustment
MIXA-R Aileron/Rudder Mix
MIXE-F Elevator/Flap Mixing
MIXDIF Differential
OFFSET Flap/ElevatorOffset
MIXA Programmable MixA
MIXB Programmable MixB
MIXC Programmable MixC
OFFSET TrimOffset Memory
Helicopter
REV ServoReversing
D/R DualRates
EXP Exponential
SB-TRIM Sub-Trim
TRVADJ Travel Adjustment
HLD ThrottleHold
PLN PitchLow Normal
P2N PitchMed. Normal
PHN PitchHigh Normal
PLS PitchLow Stunt
P2S PitchMed. Stunt
PHS PitchHigh Stunt
PLH PitchLow Hold
P2H PitchMed. Hold
PHH PitchHigh Hold
TLN ThrottleLow Norm.
T2N ThrottleMed. Norm.
THN ThrottleHigh Norm.
TLS ThrottleLow Stunt
T2S ThrottleMed. Stunt
MIX RevoMixing
RVU RevoMixing Up
RVD RevoMixing Down
MIXA Programmable MixA
STT StuntTrim
CCP CCPMSwashplate Mix
Offset TrimOffset Memory

4XP652 MANUAL Quick Start
QUICKSTART
AIRPLANE
ModelTypeSelection
ServoReversing
THR
REV◆NORM
INCREASE
CLEAR
+–
DECREASE INCREASE
CLEAR
+–
DECREASE
MODE
ENTER
CHANNEL
Press the MODE and CHANNEL
buttons simultaneously until a
beep is heard.
5THR
MODE
ENTER
CHANNEL
Press the MODE button
until REV◆NORM
appears on the screen.
6
REV◆NORM
Turn the transmitter off and then on again.
MODE
ENTER
CHANNEL
Press the MODE and CHANNEL
buttons simultaneously and hold
while turning on the transmitter.
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE
1
AC
TYP
MODE
ENTER
CHANNEL
Press the MODE button
until TYP appears on the
screen.
2
AC
TYP
MODE
ENTER
CHANNEL
If AC appears on the screen
procede directly to Step 4. If HE appears
press the INCREASE or DECREASE
button until AC appears.
3
AC
TYP 4
9.7V
ACI
In this manual you will find in-depth instructions that
detail all the steps and procedures you should follow in
order to program each of the XF652's features. For
modelers who want to get into the air fast, we have
provided Quick Start. Quick Start covers the basic
programming information necessary to get you airborne.
Later, when you want to learn more about specific
features of the XP652, turn to the appropriate page(s) in
this manual for more detailed programming information.
If AC appears on the screen procede directly to
Step 4. If HE appears press the INCREASE or
DECREASE button until AC appears, then
press the MODE and CHANNEL buttons
simultaneously to store the model type change.

5
XP652 MANUAL Quick Start
QUICKSTART AIRPLANE
ServoReversingcontinued
Travel Adjustment
MODE
ENTER
CHANNEL
Press the MODE button
until TRV ADJ. appears
on the screen.
8
–I00%
AIL
MODE
ENTER
CHANNEL
Press the
CHANNEL
button to select
the channel you
want the travel
adjusted on.
To decrease the
travel, move the stick
(i.e. aileron) to the
right then press the
DECREASE button
to adjust the right
travel. Release the
DECREASE button
and move the same
stick to the left. Press
the DECREASE
button to adjust the
left travel.
To increase the
travel, move the stick
(i.e. aileron) to the
right then press the
INCREASE button to
adjust the right
travel. Release the
INCREASE button
and move the same
stick to the left. Press
the INCREASE
button to adjust the
left travel.
9
MODE
ENTER
CHANNEL
Press the MODE and
CHANNEL buttons
simultaneously to return to
the model type display.
Before flying check the
direction of all control
surfaces and that the travel
is adjusted properly.
10
I0.4V
ACI
TRV ADJ. –I02%
AIL
TRV ADJ.
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE
THR
REV◆NORM
MODE
ENTER
CHANNEL
Press the
CHANNEL button
to select the
channel you want
to reverse.
Press the
INCREASE button
to reverse the
direction of the
channel you
selected.
7
INCREASE
CLEAR
+–
DECREASE
Press the
CHANNEL button
to select the
channel on which
you want the
travel adjusted.

6XP652 MANUAL Quick Start
QUICKSTART
HELICOPTER
ModelTypeSelection
ServoReversing
THR
REV◆NORM
THR
REV◆NORM
MODE
ENTER
CHANNEL
Press the CHANNEL
button to select the
channel you want
to reverse.
Press the INCREASE
button to reverse the
direction of the channel
you selected.
7
MODE
ENTER
CHANNEL
Press the MODE and CHANNEL
buttons simultaneously until a
beep is heard. REV◆NORM
should appear on the screen.
5THR
MODE
ENTER
CHANNEL
Press the MODE button
until REV◆NORM appears
on the screen.
6
REV◆NORM
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE
MODE
ENTER
CHANNEL
Press the MODE and CHANNEL
buttons simultaneously and hold
while turning on the transmitter.
1
AC
TYP
MODE
ENTER
CHANNEL
Press the MODE button until
TYP appears on the screen.
2
AC
TYP
MODE
ENTER
CHANNEL
If HE appears on the screen
procede directly to Step 4. If AC
appears press the INCREASE
button until HE appears.
3
HE
TYP 4
INCREASE
CLEAR
+–
DECREASE INCREASE
CLEAR
+–
DECREASE
MODE
ENTER
CHANNEL
Press the MODE and CHANNEL
buttons simultaneously until a
beep is heard.
9.7V
HEI
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE

7
XP652 MANUAL Quick Start
QUICKSTART HELICOPTER
Travel Adjustment
PitchCurve
RevolutionMixing
MODE
ENTER
CHANNEL
Press the MODE button until
TRV ADJ. appears on the screen.
8
–I00%
AIL
TRV ADJ.
INCREASE
CLEAR
+–
DECREASE
MODE
ENTER
CHANNEL
Press the
CHANNEL
button to select
the channel you
want the travel
adjusted on.
To decrease the
travel, move the stick
(i.e. aileron) to the
right then press the
DECREASE button
to adjust the right
travel. Release the
DECREASE button
and move the same
stick to the left. Press
the DECREASE
button to adjust the
left travel.
To increase the
travel, move the stick
(i.e. aileron) to the
right then press the
INCREASE button to
adjust the right
travel. Release the
INCREASE button
and move the same
stick to the left. Press
the INCREASE
button to adjust the
left travel.
9
–I02%
AIL
TRV ADJ.
INCREASE
CLEAR
+–
DECREASE
MODE
ENTER
CHANNEL
Press the MODE button
until PLN appears on
the screen.
10
0%
MODE
ENTER
CHANNEL
Press the CHANNEL
button to select stick
position (point location).
Press the INCREASE or DECREASE
button to adjust the point value at the
selected stick position.
11
MODE
ENTER
CHANNEL
Press the MODE
button until Mix
RVU appears on
the screen.
Revolution mixing value
can be set for up or down.
Press the CHANNEL
button until U or D
appears on the screen.
Press the INCREASE button
to set the desired value of
the up and down positions.
A good place to start is
35% up and 35% down.
To change the direction of the
mixing value press the
INCREASE and DECREASE
buttons simultaneously.
12
–0
%
RVU
MIX
0%
STICK POSITION
(POINT LOCATION)
L = Low
2 = Center
H = High
PRE-SET VALUES
L= 0%
2 = 50%
H = 100%
RECOMMENDED INITIAL PITCH
SETTINGS
(Please refer to your helicopter kit
instruction for pitch settings if available)
L = 0° Pitch
2 = 5° Pitch
H = 9° Pitch
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE
INCREASE
CLEAR
+–
DECREASE
Press the
CHANNEL button
to select the
channel on which
you want the
travel adjusted.

8XP652 MANUAL Table of Contents
TABLE OF CONTENTS
I. INTRODUCTION
1. Using This Manual 9
2. Features 9
2.1 Transmitter 9
2.2 Receiver 9
2.3 Servos 10
3. Specifications 11
3.1 System Specifications 11
3.2 Transmitter Specifications 11
3.3 Servo Specifications 11
3.4 Receiver Specifications 12
3.5 Charger Specifications 12
3.6 Airborne Battery Pack 12
4. Battery Charging 14
4.1 Transmitter/Receiver 14
4.2 Charger 14
5. Trainer System 14
II. AIRPLANE SECTION
1. Transmitter Controls 15
1.1 Control Identification and Location 15
1.2
Receiver Channel Assignment/Transmitter Throttle ATL 15
1.3 Transmitter Rear 16
1.4 Control Stick Length Adjustment 17
1.5 Direct Servo Control (DSC) 17
1.6 Neck Strap Attachment 17
2. Connections 18
2.1 Installation Requirements 18
2.2 Connections 18
3. Key Input and Display 19
4. Battery Alarm and Display 19
5. Input Mode and Function 20
5.1 Normal Display 20
5.2 System Mode 20
5.3 Function Mode 21
6. Functions (System Mode) 22
6.1 Model Type Selection 22
6.2 Data Reset 23
6.3 Dual Rate Switch Selection 24
6.4 Wing Type Selection 25
6.5 Model Selection 27
6.6 Model Name Entry 28
6.7 Modulation Select 29
6.8 Fail-Safe/Hold 30
6.9 Fail-Safe (Z-PCM) 30
6.10 Fail-Safe (S-PCM) 32
7. Functions (Function Mode) 34
7.1 Servo Reversing 34
7.2 Dual Rate 35
7.3 Exponential 36
7.4 Sub-Trim 37
7.5 Travel Adjustment 38
7.6 Aileron to Rudder Mixing 39
7.7 Elevator to Flap Mixing 41
7.8 Differential 43
7.9 Flap to Elevator Offset Trim 44
7.10 Programmable Mixing (A, B, C) 45
7.11 Trim Offset 48
8. Data Sheets 51
III. HELICOPTER SECTION
1. Transmitter Controls 52
1.1 Control Identification and Location 52
1.2
Receiver Channel Assignment/Transmitter Throttle ATL 52
1.3 Transmitter Rear 53
1.4 Control Stick Length Adjustment 54
1.5 Direct Servo Control (DSC) 54
1.6 Neck Strap Attachment 54
2. Connections 55
2.1 Installation Requirements 55
2.2 Connections 55
3. Key Input and Display 56
4. Battery Alarm and Display 56
5. Input Mode and Function 57
5.1 Normal Display 57
5.2 System Mode 57
5.3 Function Mode 58
6. Functions (System Mode) 59
6.1 Model Type Selection 59
6.2 Data Reset 60
6.3 Dual Rate Switch Selection 61
6.4 Gear/Gyro Switch Selection 62
6.5 Model Selection 63
6.6 Model Name Entry 64
6.7 Modulation Select 65
6.8 Fail-Safe/Hold 66
6.9 Fail-Safe (Z-PCM) 66
6.10 Fail-Safe (S-PCM) 68
7. Functions (Function Mode) 70
7.1 Servo Reversing 70
7.2 Dual Rate 71
7.3 Exponential 72
7.4 Sub-Trim 73
7.5 Travel Adjustment 74
7.6 Throttle Hold 75
7.7 Pitch Curve 76
7.8 Throttle Curve 77
7.9 Revolution Mixing 78
7.10 Rudder Offset 79
7.11 Programmable Mixing (A) 80
7.12 Stunt Trim 83
7.13 CCPM Swashplate mixing 84
7.14 Trim Offset Memory 86
8. Data Sheets 89
8.1 Ergo .32/.46 Initial Setup 89
8.2 Ergo .46 Initial Setup w/3D Pitch Curve 90
8.3 Ergo .60 Initial Setup 91
8.4 Blank Data Sheet 92
IV. IMPORTANT INFORMATION
1. General Notes 93
2. Daily Flight Checks 93
3. Warranty Coverage 94
4. Repair Service Instructions 94
5. Frequency Chart 95

The XP652 is a full feature introductory computer
radio that can be used for airplanes and/or
helicopters. This manual is divided into two main
sections — the first for airplanes and the second for
helicopters. You need only refer to the section that
pertains to the type of model you are programming —
e.g., if you are programming your XF652 for helicopters,
follow the instructions in the helicopter section.
Blank data sheets are included at the end of both
sections. Once you have input all the necessary data
into your transmitter for a particular model, we
strongly recommend that you immediately write that
information down on a copy of the data sheet provided.
This is to insure that, in the rare case of a memory
failure, you will not lose your data.
Airplane and Helicopter Mode
• Easy-to-read LCD screen
• Five model name entry
• Five model memory
• Dual rates on aileron and elevator
• Dual rates can be combined on one switch
• Exponential rate on aileron and elevator
• Trainer system compatible with most other JR
radios
• Flush mounted programming buttons
• Computer designed ergonomically styled case
• Adjustable stick length
• Throttle trim only affects idle position
• Two speed scrolling—Press and hold the
appropriate button to scroll quickly or press and
release to scroll in steps.
• FM/PCM selectable
• Fail-safe/fail-safe memory (PCM only)
• Trim offset memory
Airplane Mode
• Aileron to rudder mixing
• Elevator to flap mixing
• Flap to elevator mixing
• Flaperons mixing
• Delta wing mixing
• Aileron differential
• V-tail mixing
• Three programmable mixes
• Mixing differential
Helicopter Mode
• Two 3-point throttle curves
• Two 3-point pitch curves (three when throttle
hold is activated)
• Flight mode switch can combine throttle curve,
pitch curve, dual rates, and gyro sensitivity
• Throttle hold with rudder offset
• Revolution mixing up and down
• Programmable mixing
• Stunt Trim
• Optional CCPM Swashplate mixing
R600 Receiver
• The R600’s extremely compact size allows it to fit
easily in limited-space airplanes and helicopters.
It’s ultra-low weight keeps overall model weight
down.
• An independent laboratory ranked the R600
receiver with JR’s patented ABC&W circuitry as
one of the best receivers ever tested in terms of
3IM, 2IM, adjacent channel rejection, signal-to-
noise ratio, and on-channel capture point.
• A special “unwanted interference limiter” ignores
signals outside of the R600’s band width when
the receiver is on and the transmitter is off. The
limiter also prevents servos from random
glitching when other transmitters are operating
in close proximity.
• The electrical circuitry in the R600 is state-of-the-
art surface mount technology (SMT). These SMT
components draw less current, thus increasing
flying time. Flush mounting of these components
also reduces the risk of vibration wear and
damage.
• The R600 is compatible with all JR FM-
transmitting radios.
9
XP652 MANUAL Introduction
CHAPTER 1:USING THIS MANUAL • Introduction
USING THIS MANUAL
1
CHAPTER 2:FEATURES • Introduction
TRANSMITTER FEATURES
2.1
RECEIVER FEATURES
2.2

10
CHAPTER 2:FEATURES • Introduction continued
XP652 MANUAL Introduction
517 Servo
• A .03ms deadband amplifier insures accurate
neutral centering.
• Low current drain.
• Ball bearing supported ouput shaft
• An indirect drive feedback potentiometer gives
additional protection from vibration.
• Redesigned features include SMT circuitry.
• 3-pole ferrite cored motor.
SERVO FEATURES2.3
SERVO LAYOUT
2.4
Servo Mounting Flange
Rubber Grommets
Rubber Grommets
Servo Case
Servo Lead w/Connector
Servo Output Shaft
Servo Mounting Flange Servo Arm/Horn
Servo Arm Retaining Screw
Servo Eyelet
Top View

CHAPTER 3:SPECIFICATIONS • Introduction
SYSTEM SPECIFICATIONS
TRANSMITTER SPECIFICATIONS
3.1
3.2
SYSTEM NAME XP652A XP652H
TRANSMITTER BODY NET-E136U NET-E136U
RECEIVER R600 R600
CHARGER NEC-221 NEC-222
AIRBORNE BATTERY 4N-600 4N-1000
SERVOS NES-517BBX4 NES-517BBX5
ACCESSORIES Mini Switch Mini Switch
12" Aileron Extension 12" Aileron Extension
Servo Accessories Servo Accessories
Instruction Manual Instruction Manual
TYPE AIRPLANE HELI COPTER
MODEL NUMBER NET-E136U NET-E136U
ENCODER 6 Channel Computer System 6 Channel Computer System
RF 50/53/72 MHz 50/53/72MHz
MODULATION PPM (FM), PCM (S,Z) PPM (FM), PCM (S,Z)
OUTPUT POWER Approximately 1 Watt Approximately 1 Watt
CURRENT DRAIN 200mA 200mA
POWER SOURCE 1.2Vx8 Nicad (9.6V) 600mah 1.2Vx8 Nicad (9.6V) 600mah
OUTPUT PULSE 1000-2000 (1500 Neutral) 1000-2000 (1500 Neutral)
TYPE AIRPLANE HELI COPTER
11
XP652 MANUAL Introduction
SERVO SPECIFICATIONS3.3
TORQUE (oz./in.) 40.3
SPEED .25
WEIGHT 1.47
SIZE (in.) (W x L x H) 0.73 x 1.52 x 1.32
BB YES
MOTOR 3-Pole Ferite
TYPE 517BB

RECEIVER SPECIFICATIONS
3.4
CHARGER SPECIFICATIONS
AIRBORNE BATTERY PACK
3.5
3.6
MODEL NUMBER NER-600
TYPE 6-Channel/FM-ABC & W/Circuitry
FREQUENCY 50/53/72MHz
SENSITIVITY (Microseconds) 5µs Minimum
SELECTIVITY 8KHz/50dB
WEIGHT (oz.) 1 oz.
SIZE (in.) (W x L x H) 1.43 x 2.06 x .55
RECEIVER ANTENNA 39" For All Aircraft Frequencies
TYPE R600 FM
MODEL NUMBER
INPUT VOLTAGE
OUTPUT CURRENT
CHARGING TIME
NEC-211
AC 100-120V
50mAh Tx/50mAh Rx
15 Hours
NEC-222
AC 100-120V
50mAh Tx/150mAhRx
15 Hours
TYPE AIRPLANE HELICOPTER
MODEL NUMBER
VOLTAGE
SIZE (in.) (W x L x H)
WEIGHT (oz.)
4N-600
4.8V
2.24 x 0.59 x 2.05
3.3
4N-1000
4.8V
2.60 x 0.63 x 1.70
4.9
TYPE AIRPLANE HELICOPTER
CHAPTER 3:SPECIFICATIONS • Introductioncontinued
12 XP652 MANUAL Introduction

CHAPTER 4:BATTERY CHARGING • Introduction
The pilot lamps should always be on during the
charging operation. If they are not, check to make
sure you have turned off both the transmitter and
receiver.
Do not use the charger for equipment other than JR.
The charging plug polarity may not be the same and
equipment damage may result.
Do not use other manufacturers’ after-market
accessories that plug into the transmitter’s charging
jack. If you do, any damage that results will not be
covered by warranty. If you are unsure of
compatibilities with your radio, seek expert advice
before doing anything to avoid possible damage.
During the charging operation, the charger’s
temperature is slightly elevated. This is normal.
CHARGER4.2
It is imperative that you fully charge both the
transmitter and the receiver battery packs prior to
each day of flying. For the initial charge, leave the
charger and batteries hooked up for 20-24 hours in
order to fully charge both battery packs to peak
capacity. For subsequent charges, leave the charger and
batteries hooked up overnight (approximately 16
hours).
The charger supplied with this system is designed to
recharge your transmitter battery at a rate of 50mA. The
receiver battery pack will charge at 50mA for the
600mAh airplane battery pack and at 150mA for the
1000mAh helicopter battery pack.
Transmitter Only
The center pin on all JR remote control systems is
negative. Therefore, the center pin on all JR
chargers is negative, not positive. This is different
from any other manufacturers’ chargers and radio
systems. Beware of improper connections based on
“color code” wire leads as they DO NOT APPLY in
this instance. You must make certain that the
center pin of your JR transmitter is always
connected to the negative voltage for correct
polarity hookup.
CENTER
PIN IS
NEGATIVE
OUTSIDE IS POSITIVE
RIGHT SIDE OF TRANSMITTER
CHARGER PIGTAIL FOR RECEIVER
CHARGER PIGTAIL FOR TRANSMITTER
BLACK TO POSITIVE
RED TO NEGATIVE
RED–POSITIVE / BROWN–NEGATIVE / ORANGE–SIGNAL
TRANSMITTER/RECEIVER4.1
13
XP652 MANUAL Introduction

The XP652 features a built-in trainer system. The
transmitter can be used as either a master (trainer)
or as a slave (trainee). The XP652 is compatible
with all other current JR radios that have built-in
trainer systems. An optional trainer cord is needed
(JRPA130).
1. Match the servo reversing and trims of both radios.
2. Plug the optional trainer cord into both
transmitters.
3. Turn on the master transmitter. (Note: The slave
radio must be left off.)
4. Test all the control functions on your aircraft with
the master radio.
5. Push the trainer button on the master transmitter
and check all the control functions with the slave
radio.
CHAPTER 5:TRAINER SYSTEM • Introduction
TRAINER SYSTEM5
D.S.C. TRAINER
CORD INPUT
ON
TRAINERELEVATOR D/R
FLIGHT MODE
GEAR / MIX
0
1HELICOPTER AIRPLANE
NET-E126
THROTTLE HOLD
FLAP / MIX
0
1
AILERON D/R
HE/AC
MODE CHANNEL INCREASE DECREASE
XF622
6 CHANNEL MULTI-DATA DISPLAY SYSTEM
ENTER CLEAR
+
-
FUNCTION 3-4 1-4 FUNCTION 1-2 2-3
MULTI
DATA
DISPLAY
VOLTAGE
INDICATOR
ON
TRAINERELEVATOR D/R
FLIGHT MODE
GEAR / MIX
0
1HELICOPTER AIRPLANE
NET-E126
THROTTLE HOLD
FLAP / MIX
0
1
AILERON D/R
HE/AC
MODE CHANNEL INCREASE DECREASE
XF622
6 CHANNEL MULTI-DATA DISPLAY SYSTEM
ENTER CLEAR
+
-
FUNCTION 3-4 1-4 FUNCTION 1-2 2-3
MULTI
DATA
DISPLAY
VOLTAGE
INDICATOR
TRAINER
BUTTON
OPTIONAL
TRAINER CORD
(JRPA130)
MASTER TX
POWER SWITCH ON SLAVE TX POWER SWITCH OFF
Operating the Trainer System
14 XP652 MANUAL Introduction

1. THRO Throttle Channel
2. AILE Aileron Channel
3. ELEV Elevator Channel
4. RUDD Rudder Channel
5. GEAR Gear Channel
6. AUX 1 Auxiliary 1 Channel (Flap)
Transmitter Throttle ALT
The throttle ALT function makes the throttle stick trim
active only when the throttle stick is less than half
throttle. This gives easy, accurate idle adjustments
without affecting the high throttle position.
RECEIVER CHANNEL ASSIGNMENT/TRANSMITTER THROTTLE ALT1.2
AUX 1/FLAP MIXING
AILERON DUAL RATE
ANTENNA
LCD SCREEN
GEAR SWITCH
ELEVATOR DUAL RATE
TRAINER BUTTON
AILERON/ELEVATOR STICK
THROTTLE/RUDDER STICK
POWER SWITCH
AILERON TRIM
ELEVATOR TRIM
THROTTLE TRIM
RUDDER TRIM
NECK STRAP EYELET
INPUT KEYS
CARRYING HANDLE
CONTROL IDENTIFICATION AND LOCATION • ModeII
CHAPTER 1:TRANSMITTER CONTROLS • Airplane
1.1
15
XP652 MANUAL Airplane

CRYSTAL
CARRYING HANDLE
TRAINER JACK
BATTERY
TRANSMITTER
CASE SCREW
TRANSMITTER
CASE SCREW
TRANSMITTER
CASE SCREW
TRANSMITTER
CASE SCREW
TRANSMITTER
CASE SCREW
TRANSMITTER
CASE SCREW
TRANSMITTER REAR1.3
16 XP652 MANUAL Airplane
Note: Your transmitter has a 5-year lithium battery
to protect your pre-programmed data against main
transmitter battery failure. If your system reads 0.0
volts, or has an unfamiliar display (service mode) or
your data resets to the factory defaults, return your
transmitter to Horizon Service Center (see page 91)
for lithium battery replacement.
BATTERY CONNECTOR
Use caution when disconnecting/removing the
transmitter battery pack as if the connector is not
properly disconnected, damage to the connector
and/or the radio system can result.

CHAPTER 1:TRANSMITTER CONTROLS • Airplane continued
To adjust the control stick length, use a 2mm Allen
wrench to unlock the set screw located inside the end
of the control stick. Turn the set screw counterclockwise
to loosen it, then turn the knurled portion of the stick
to adjust the length. Counterclockwise will lengthen the
stick and clockwise will shorten it. After the control stick(s)
has been adjusted to suit your flying style, tighten the set
screw.
For proper DSC hook-up and operation:
1. Leave the transmitter power switch off. The
transmitter will not transmit any radio
frequency (RF) in this position.
2. Plug the optional DSC cord (JRPA132) into the
DSC port in the rear of the transmitter.
3. The encoder section of the transmitter will now
be operational and the LCD display will be lit.
4. Plug the other end of the DSC cord into the
receiver charge receptacle. Turn on the switch
harness.
Note: When installing the optional charging
jack (JRPA024) be sure to hook the charging jack
receptacle securely into the switch harness
charge cord.
Why you should use the DSC function:
1. The DSC enables you to check the control
surfaces of your airplane without drawing the
fully operational 200mAh from your transmitter
battery pack. Instead, you will only draw 70mAh
when using the DSC function.
Note: You will need to purchase (separately)
both the DSC cord (JRPA132) and the JR Deluxe
Switch Harness (JRPA001) to make use of the
XP652 DSC function.
2. The DSC function allows you to make final
adjustments to your airplane or helicopter
without transmitting any radio signals.
Therefore, if another pilot is flying on your
frequency, you can still adjust your aircraft and
not interfere with the other aircraft.
Note: Under no circumstances should you
attempt to fly your aircraft with the DSC cord
plugged in! This feature is for bench checking
your aircraft only.
There is an eye hook on the front of the transmitter
for attaching an optional neck strap (JRPA023). The
eye hook is precisely positioned (see Section 1.1)
so that the transmitter will be perfectly balanced when
a neck strap is used.
CONTROL STICK LENGTH ADJUSTMENT1.4
LOOSEN
TIGHTEN
SET SCREW
DIRECT SERVO CONTROL (DSC)1.5
A
B
C
A - Charge Cord/DSC Receptacle
B - Switch Harness Lead
C - Charger/DCS Cord
NECK STRAP ATTACHMENT1.6
17
XP652 MANUAL Airplane

18 XP652 MANUAL Airplane
It is important to correctly install the radio system
in your model. Please read and carefully follow the
suggestions listed below.
1. For added protection, wrap the Rx and the Rx
Nicad in foam rubber that is at least 1/4” thick.
2. Run the Rx antenna through the fuselage and make
sure it is fully extended. Never cut or bundle your
Rx antenna — this will decrease range and
performance.
3. Rubber servo grommets are included with your
radio system and should be installed in the servo
flanges. The servos should then be mounted on
either hardwood rails or a plywood tray with the
mounting screws provided. Do not overtighten the
mounting screws. The flange of the brass eyelets
should face down (toward the wood).
4. All servos must be able to move freely over the full
range of their travel. Make sure the linkages do not
impede servo travel. A stalled servo will drain the
battery pack within a few minutes.
5. Before installing servo output arms, make sure the
servo is in its neutral position.
6. In the case of gas-powered model aircraft, mount
the receiver power switch on the side of the
fuselage opposite the muffler to protect the switch
from exhaust residue. With other types of models,
mount the switch in the most convenient place.
Make sure that the switch operates freely and is
capable of traveling its full distance.
7. With your model sitting on the ground and the
transmitter antenna collapsed, check that your
system works at a distance of 75 to 100 feet.
If your system stops functioning at a distance that
is shorter than listed above, please contact the
Horizon Service Center for further information prior
to flying your model.
INSTALLATION REQUIREMENTS
CHAPTER 2:CONNECTIONS • Airplane
CONNECTIONS2.2
2.1
ON
OFF
AUXILIARY 1 (FLAP)
GEAR
RUDDER
ELEVATOR
AILERON
THROTTLE
ON/OFF SWITCH HARNESS
(JRPA003)
RECEIVER BATTERY
4N-600
226X RECEIVER
NEW ABC & W SYSTEM
6 CHANNEL RECEIVER BATT
AUX 1
GEAR
RUDD
ELEV
AILE
THRO
NER-226X
JAPAN REMOTE CONTROL CO., LTD
MADE IN JAPAN
72MHz
ANTENNA
BATT
AUX 1
GEAR
RUDD
ELEV
AILE
THRO
6 CH 72MHz FM RECEIVER
ABC&W INTERFERENCE
PROTECTION SYSTEM
R600 RECEIVER

CHAPTER 4:BATTERY ALARM AND DISPLAY • Airplane
BUTTON USE
MODE Used to move up through the available functions
CHANNEL Used to select the desired channel
INCREASE Used to increase the value of the selected function
DECREASE Used to decrease the value of the selected function
CHAPTER 3:KEY INPUT AND DISPLAY • Airplane
KEY INPUT AND DISPLAY3
When the transmitter battery drops below 9.0 volts,
the display will start to flash BAT and an audible alarm
will sound for 8 beeps. These warnings mean you
should land your aircraft immediately.
Note: During the period that the battery alarm is
flashing, the input buttons will not function. If you are
currently in the function mode, the transmitter will exit
automatically and return to the normal display
(see Section 5.1).
BATTERY ALARM AND DISPLAY4
BAT
8.9V
FLASHING
MODE
ENTER
CHANNEL
To enter the function mode press the
MODE and CHANNEL buttons
simultaneously while the transmitter is on.
Press the INCREASE and DECREASE
buttons simultaneously to clear the
screen or return to factory preset.
To enter the system mode press the
MODE and CHANNEL buttons
simulataneously and hold while
turning on the transmitter.
INCREASE
CLEAR
+–
DECREASE
19
XP652 MANUAL Airplane
V

20 XP652 MANUAL Airplane
When the power switch is turned on the screen
will read as shown here in the diagram. This
screen is referred to as the normal display.
To enter the system mode, press the MODE
and CHANNEL buttons simultaneously while
you turn on the transmitter. You can now
select any of 7 system mode functions shown
here in the flow chart. To exit the system mode,
press the MODE and CHANNEL buttons
simultaneously or turn off the transmitter. Press
the mode button to move through the system
mode functions. Information for each function is
located on the page number listed next to the
function name.
SYSTEM MODE
CHAPTER 5:INPUT MODE AND FUNCTION • Airplane
5.2
I0.4V
AC I MODEL NUMBER
AC = FIXED WING AIRCRAFT
HE = HELICOPTER
BATTERY VOLTAGE
NORMAL DISPLAY5.1
I
MD L
I
-
I
PP M
C L
FSM
AC
TYP
AC
RST
E.A
SW
D/R
OF
W N G
MIX
MODEL TYPE SELECTION Page 22
DATA RESET Page 23
DUAL RATE
SWITCH SELECTION Page 24
Page 25
WING TYPE
SELECTION
FPR FLAPERON
MODEL SELECTION Page 27
MODEL NAME ENTRY Page 28
MODULATION SELECTION Page 29
FAIL-SAFE
(Z-PCM MODE ONLY) Page 30
FAIL SAFE MEMORY
(S-PCM MODE ONLY) Page 32
V
OF
FSI