LCD Display

Transmitter Rear
Control Stick tension adjustment Remove the battery and six transmitter back screws as shown on the previous page. Remove the transmitter back, being careful not to cause damage to any components. Adjust each screw for desired tension (counterclockwise to loosen stick feel; clockwise to tighten stick feel.) When adjusting the throttle ratched tension, make sure that the adjusting screw does not touch the PC board after adjustment is complete. Throttle Stick The initial setting for the throttle stick is ratched type. If you don`t like this feeling, please follow the following instruction to change it. You will be required a posidrive screwdriver and a pair of tweezers; 1. Remove the model from back of the transmitter, by squeezing the lugs and pulling it out. 2. Remove the battery cover by pushing it inwards and downwards. Remove the battery. 3. Remove 4 screws from the rear 4 corners. Remove 2 screws, 1 from either side of the rear antenna base. 4. Carefully separate the 2 halves of the transmitter, starting at the base. 5. Unplug the 2 multi pin connectors for ease of access. 6. The left side of left stick unit has a black plastic lever and spring, which provide the centring action - move the stick if you are in doubt. Using the tweezers, remove the spring. 7. Slide the lever towards the center of the transmitter in order to remove ir from its pivot (move the stick to clear it if necessary). 8. Reverse the above process to fit the lever and spring to the right-hand assembly (note; the pivot is at the top of the right-hand stick assembly).

Transmitter Crystal

DSC/Trainer Jack Charging Jack for transmitter batteries (Graupner 8NH-1700 TX Order No. 3414 included)

Battery Cover

Control Stick tension adjustment

For Throttle For Aileron

For Rudder For Elevator
Do not touch PCB 10 Transmitter description
The battery connector is keyed so that you can only be plugged in one direction. Do not force!

CAUTION

Direct servo control (DSC)
9. The left side of the right-hand assembly has a metal strip which provides the ratched friction action. This is held in place by two screws. Undo the screws and transfer the metal strip to the left-hand assembly. 10. The mechanical conversion is now completed; check the stick actions are as required and reassemble the transmitter by reversing the above process, not forgetting to plug in the multipin connectors. Frequency notes The mx-12 can transmit in either Pulse Code Modulation (PCM) or Pulse Position Modulation (PPM, commonly referred to as FM): Be certain to observe the following guidelines: Do not operate your transmitter when another transmitter is using the dame frequency, regardless of whether the second transmitter is PCM, PPM (FM) or AM. You can never operate two transmitters on the same frequency simultaneously without causinf interference. For proper DSC hook-up and operation: 1. Leave the transmitter power switch in the OFF position. The transmitter will not transmit any radio frequency (RF) in this position. 2. Plug the (supplied) DSC cord 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 the switch harness to the ON position. Note: When you install the charging jack, be sure to hook the charging jack receptable 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 aircraft without drawing the fully operational 200mAh from your transmitter battery pack. Instead, you will only draw approximately 70mAh when using the DSC function. 2. The DSC function allows you to make final adjustments to your airplane 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 pilot`s aircraft. Note: This function is for bench-checking your airplane only.

TO BATT TERMINAL

V-CORD Best.-Nr. 3936.11

SW HARNESS G (OPTION)

BATTERY
DSC-CORD Best.-Nr. 4178.1

Direct servo control

Connections and installations

For Airplane

FLAP CHANNEL BATTERY GEAR CHANNEL RUDDER CHANNEL GEAR FLAP (AUX1) Installation requirements It is extremely important that your radio system be correctly installed in your model. Here a few suggestions installing your GRAUPNER equipment: 1. Wrap the receiver in protective foam rubber that is no less than 3/8 inch thick. Secure the foam to the receiver with #64 rubber bands. This protects the receiver in the event of a crash or a very hard landing. 2. The servos should be mounted using rubber grommets and brass eyelets to isolate them from vibration. Do not over-tighten the mounting screws; this will negate the vibration absorption effect of the rubber grommets. The following diagram will assist you in properly mounting your servo. The brass eyelet are pushed from the bottom up in the rubber grommets. When the servo screw is tightened securely, it provides the proper security as well as the proper vibration isolation for your servo. 3. The servos must be able to move freely over their entire range of travel. Make sure that the control linkages do not bind or impede the movement of any of the servos. 4. Mount all switches away from the engine exhaust and away from any high vibration areas. Make sure the switch operates freely and is able to operate over its full travel. 5. Mount the receiver antenna firmly to the airplane to ensure that it will not become entangled on the propeller or control surfaces.

SWITCH HARNESS

Do not cut or fold the antenna!

WARNING

ELEV ELEVATOR SERVO AILE AILERON SERVO THRO THROTTLE SERVO

Servo Mounting Tab

ANTENNA

RECEIVER R700 RECEIVER

Rubber Grommet

Brass Eyelet

For Helicopter
AUX1 BATTERY GYRO PITCH SERVO GEAR CHANNEL GEAR
RUDD RUDDER SERVO SWITCH HARNESS CHARGING JACK ELEV ELEVATOR SERVO AILE AILERON SERVO THRO THROTTLE SERVO
Key input and display; Alarm and error display
Battery alarm and display When the transmitter voltage drops below 9.0 volts DC, the display flashes BATT LOW and an alarm sounds. If you are flying when this occurs, land immediately. Backup error display All preprogrammed data is protected by a five-year lithium battery that guards against main transmitter battery failure. Should de lithium battery fail, the display will indicate BACK ERROR. If this occurs it will be necessary to replace the lithium back-up battery, contact your local dealer. Due to the possibility of extensive damage caused by improper removal or replacement, only your local dealeris authorized to make this change.

Accessing the Dual-Rate and Exponential Function 1. Place the transmitter power switchin the ON position. 2. Access the Function mode by pressing the Down and Select keys simultaneously. 3. Press either the Up or Down key until D/R EXP appears in the upper left corner of the LCD. 4. Press the (+) ir (-) key until the desired channel (aileron, elevator or rudder) appears. 5. Select the switch position for which you want to adjust the rate. The number to the upper right of the current rate value on the display indicates the current position of the Dual-Rate switch for the channel that you have selected. Either a 0 or a 1 will be shown, corresponding to the position of the switch. To select the opposite switch positio, move the appropriate Dual Rate switch to the opposite position. The number that appears above the current rate value reflects the change. 6. Adjust the rate for the channel and the switch position just selected. To decrease the throw rate, move the cursor to the D/R position using the Select key, then press the (-) key. To increase the throw rate, press the (+) key. As stated previously, the adjustable rate is from 0-125% for each switch position and channel.

Channel being programmed

THR AIL ELE RUD GEA FLA
1: THROTTLE 2: AILERON 3: ELEVATOR 4: RUDDER 5: GEAR 6: FLAP
The Reverse Switch function is an electronic means of reversing the throw of a given channel (servo). All six channels of the mx-12 offer reversible servo direction. This will ease setup during the servo installation into your aircraft.
Go to Sub Trim menu Go to D/R & Exp menu Select channel to reverse Change servo direction (NR) Reset direction to normal (Adjust to N)
Accessing the Travel Adjust Function 1. Place the transmitter power switch in the ON position. 2. Access the Function mode by pressing the Down and Select keys simultaneously. Function mode AIRPLANE 19

Sub Trim; Travel Adjust

3. Press either the Up or Down key until TRAVEL ADJ appears in the upper portion of the LCD. 4. Using your transmitter`s control sticks, switches and potentiometers, move the control surfaces of your aircraft. Note the travel direction of each of the corresponding control surfaces. 5. After you have determined which channel(s) need to have the throw directions reversed, use the Select key to call up the appropriate channel. 6. Press either the (+) or (-) keys to change the travel directions of the servo. Pressing the Clear key returns the travel direction to Normal. 7. You can observe the change in the travel direction by moving the appropriate control at this time. 8. Access the D/R & EXP function by pressing the Down key. 9. Access the SUB TRIM function by pressing the Up key. 10. Exit the SERVO REVERSING function by pressing the Down and Select keys simultaneously. Sub Trim ly adjustable for all six channels with a range of +/125% (+/- 30 degrees servo travel). The sub trim function provides precise servo arm neutral positioning if rotating the servo arm will not allow the desired servo arm position.

Mixing SW Selection SW Display ALWAYS ON: Always Mixing In RIGHT FWD: Gear SW Forward side On RIGHT REA: Gear SW Rear sideOn LEFT FWD: FLAP SW Rear sideOn LEFT REA: FLAP SW Rear sideOn AILE D/R: AILE D/R SW Position 1On ELEV D/R: ELEV D/R SW Position 1On
Throttle Cut switch; Flap System
Go to Throttle cut menu Go to Ele Flp Mx menu Change selection Change value/Select switch Reset selection to Default (Adjust to 0% or ALWAYS ON)
Accessing the Aileron to Rudder Mixing Function 1. Place the transmitter power switch in the ON position. 2. Access the Function mode. To do so, press the Down and Select keys simultaneously. Press either the Up or Down key until AILRUD MIX appears in the center portion of your LCD. 3. Press the (+) or (-) key to increase or decrease the amount of rudder to be mixed with aileron. If you want to reverse the Rudder Mix direction, press the Clear key, bringing the mixing value to the factory default (0%), and increase the value using the opposite key (+) ir (-) from the key originally selected. 4. Press the Select key to access the switch assignment function. 5. Press the (+) or (-) key to select the desired switch/ function to activate the Aileron-to-Rudder Mixing function. 6. Access the ELEFLP MX mixing function by pressing the Down key. 7. Access the THRO CUT function by pressing the Up key. 8. Exit the AILRUD MIX function by pressing the Down and Select keys simultaneously.
Throttle Cut switch This function assigns the Throttle Cut switch to the push button located on upper right front of the transmitter. The Throttle Cut function is designed to return the throttle trim to the lowest position instantly and keep this position while the button is pressed. This feature is used to cut or stop the engine without changing the position of digital throttle trim.
5. Access the AILRUD MIX function by pressing the Up key. 6. Exit the THRO CUT function by pressing the Down and Select keys simultaneously. Flap System The Flap System function provides elevator compensation to counteract any pitch tendencies when flaps are deployed.

DIFFERENTIAL VALUE (NORM 0% - 100%)
Indicate present wing type FLAPERON or ELEVON
Offset Value (+/- 125) Mixing percentages Mixing switch selection (+/- 125) SWITCH ALWAYS ON: Always Mixing On RIGHT FWD: Gear SW Forward sideOn RIGHT REA: Gear SW Rear sideOn LEFT FWD: FLAP SW Forward sideOn LEFT REA: FLAP SW Rear sideOn AILE D/R: AILE D/R SW Position 1On ELEV D/R: ELEV D/R SW Position 1On
Go to Fail Safe menu Go to Differential Change highlighted selection
Change selected value Reset selection to default
To Program Mixing To flap system
Differential Value Increases or Decrease Press to reset Differential Value to factory preset. (NORM 100%)

Fail Safe

Accessing the Programmable Mixing Function 1. Place the transmitter switch in the ON position. 2. Press the Down and Select keys simultaneously to enter the Function mode. 3. Press either the Up or Down key until MIX 1 appears in the LCD. Selecting the Master and Slave Mixing Channels 4. Press the (+) or (-) keys to select the master channel. 5. Press the Select key to move the cursor to the slave channel position. 6. Press the (+) or (-) keys to select the slave channel. 7. Press the Select key once. The display will continue to show the current mixing channels at the top of the LCD, but now an arrow will indicate the current stick position (master) to be adjusted. Setting the Mixing Values 8. While holding the master stick in the direction you want to mix, press the (+) or (-) keys to increase or decrease the mixing value for the slave channel. The value in the LCD will change to display the current mix value selected. Next, hold the master stick to the other side to adjust the mix for the other direction. Setting the Mixing Switch Activation 9. Press the Select key until the SW is highlighted. The LCD with ALWAYS ON indicates the current switch that this mix is currently selected to always be active (ON). Mixing Operation and Switches Each mixing program can be turned on and off by a lever or switch. The levers and switches that can be selected for program mixing are tabulated at the right with their abbreviations appearing on the displayand their corresponding positions. 24 Function mode AIRPLANE Setting the Mixing Channel Offset 1. Press the Select key until offset is highlighted. The display will show the current mixing channels at the top of the LCD, with the word OFFSET in the center of the LCD. The value to the right is the mixing Offset neutral point, currently 0. 2. A new value for the offset can be selected using the (+) or (-) keys. This is the new neutral point for the slave channel (Point that the mix is activated). Press the Clear key to reset the value back to 0. 3. Press the Down and Select keys simultaneously to exit the Programmable Mix function. With a little practice, programmable mixing will become easier to understand. Mixing is inly limited by your imagination. Fail Safe The Fail Safe/Hold function is available only when you use the mx-12 transmitter in PCM modulations. This function is designed to help minimize damage to your aircraft during a loss of signal to the receiver. The servos either assume the fail-safe presets or hold their last good signal position. As noted earlier, if you are in the PPM modulation, the Fail-Safe/Hold function is not applicable. Therefore, the Fail-Safe/Hold function will not appear on your LCD screen menu while in the PPM mode. Refer to the Modulation Selection section for more information pertaining to the broadcast signal of your mx-12 transmitter. Note: The throttle fail safe position is defaulted to the idle position for added safety.

corresponding control surfaces. 5. After determining which channel(s) need to have the throw directions reversed, use the Select key to call up the appropriate channel. 6. Press either the (+) or (-) keys to change the travel direction of the servo. Pressing the Clear key returns the travel direction to Normal. 7. You can observe the change in the travel direction by moving the appropriate control at this time. 8. Access the D/R & EXP function by pressing the Down key. 9. Access the SUB TRIM function by pressing the Up key. 10. Exit the SERVO REVERSING function by pressing the Down and Select keys simultaneously. Sub Trim The Sub Trim Adjustment function allows you to electronically fine-tune the centering of your servos. Individually adjustable for all six channels with a range of +/-125% (+/- 30 degrees servo travel). The sub trim functions provide precise servo arm neutral positioning if rotating the servo arm will not allow the desired servo arm position.
Go to travel Adj menu Go to Reversing SW menu Select channel Change value Reset selection to default
60 degrees) from neutral, or center, and it can be adjusted for each direction individually. The factory default (Data Reset) value is 100% for each direction of servo travel.
Accessing the Sub Trim Function 1. Place the transmitter power switch in the ON position. 2. To Access the Function mode, press the Down and Select keys simultaneously. 3. Press either the Up or Down key until SUB TRIM appears in the upper middle portion of the LCD. 4. Press the Select key until the desired channel appears. 5. Press the (+) or (-) key to establish the desired amount and direction of Sub-Trim. Caution: Do not use excessive sub-trim adjustments since it is possible to overrun your servo`s maximum Sub Trim. Remember that it is a trim convenience function. It is not intended to take the place of the proper mechanical trim adjustments that are necessary on any RC model. 6. Access the REVERSING SW function by pressing the Down key. 7. Access the TRAVEL ADJ function by pressing the Up key. 8. Exit the SUB TRIM function by pressing the Down and Select keys simultaneously. Travel Adjust The purpose of Travel Adjust is to offer you precise servo control deflection in either direction of servo operation. The mx-12 offers travel adjust for all six channels. The Travel Adjust range is from 0-150% (0 degrees to
Channel beeing programmed TH 1: Throttle AI 2: Aileron EL 3: Elevator RU 4: Rudder GE 5: Gear PI 6: Pitch Go to Swash Mixing or Throttle cut menu Go to Sub Trim menu Select channel to adjust

Travel value (0~150%)

Change value Reset value to normal
Channel beeing programmed TH 1: Throttle AI 2: Aileron EL 3: Elevator RU 4: Rudder GE 5: Gear PI 6: Pitch
Sub Trim Value (0~+/-125)
Accessing the Travel Adjust Function 1. Place the transmitter power switch in the ON position 2. Access the Function mode by pressing the Down and Select keys simultaneously. 3. Press either the Up or Down key until TRAVEL ADJ appears in the upper portion of the LCD. 4. Press the Select key until the desired channel is highlighted. 5. Move the appropriate control stick (lever, switch, etc.) to right or left of the center to the direction of travel you want to adjust value will reflect the current position to be adjusted 6. After the control stick or switch is placed in the dirFunction mode HELICOPTER 27

1.) One servo (Standard Mechanical Miying) The most common form of Swashplate Mixing. This type uses each of the three servo to move the swashplate individually for pitch, Aileron and Elevator changes. If one servo (NORM) is selected in the System Mode (Factory Default), the Swashplate Type Function will not appear on the LCD screen in this section. 2.) Two servo (180-degrees) Two servos are used to move the swashplate, and are spaced at 180 degrees apart. This is not a very common control system configuration. 3.) Three servo (120-degrees) Three servos are used to move the swashplate , and are spaced at 120 degrees apart. This is the most common form of CCPM, and is found in Graupner and other brands of Helicopters. 4.) Three servo (90-degrees) Three servos are used to move the swashplate, and are spaced at 90 degrees apart. This is also not a very common control system configuration. CCPM Servo Connection/Channel Numbers 2 servo (180) Ch2 = Aileron Ch2 = Elevator
Throttle Cut Switch; Throttle Hold
Ch6 = Pitch 3 servo (120) Ch2 = Aileron Ch2 = Elevator Ch6 = Pitch Throttle Cut Switch This function assigns the Throttle Cut switch to the push button located on upper right front of the transmitter. The Throttle Cut function is designed to return the throttle trim to the lowest position instantly and keep this position while the button is pressed. This feature is used to cut or stop the engine without changing the position of digital throttle trim. Throttle cut function. Note: Pressing the Clear key will Inhibit the Throttle Cut, turning it off until it has been reactivated. 4. Access the TRAVEL ADJ mixing function by pressing the Down key. 5. Access the THROTTLE HOLD function by pressing the Up key. 6. Exit the THRO CUT function by pressing the Down and Select keys simultaneously. Throttle Hold The Throttle Hold function is designed to hold the throttle servo in a specific position during an autorotation. This is very useful for practicing autorotation landings. The throttle hold switch can be programmed to one of the four toggle switches. Throttle hold will always be On in the forward switch position and Off in the rear position.
Throttle Hold Position Hold SW Select (-20~50) Switch LEFT : THRO HOLD SW Forward SideOn AILE D/R : AILE D/R: AILE D/R SW Position 1On ELEV D/R: ELEV D/R Position 1On RIGHT : FLIGHT MODE SW Forward SideOn
Throttle Cut Operating position (-32~-128) Go to Throttle Hold menu Go to Travel adjust menu

Press +/- key

Press CLR key during selecting SW
Accessing the Throttle Cut Function 1. Place the transmitter power switch in the ON position. 2. Access the Function mode. To do so, press the Down ans Select keys simultaneously. Press either the Up or Down key until THRO CUT appears in the upper portion of the LCD screen. 3. Us the (+) and (-) keys to change the value of the
Go to Throttle Curve menu Go to Throttle Cut menu Select function to change
Change value/SW selection Reset POS value to 0 or Inhibit function
Accessing the Throttle Hold Function 1. Place the transmitter power switch in the ON position. 2. Press the Down and Select keys simultaneously to enter the Function mode. 3. Press either the Up or Down key until THROTTLE HOLD appears across the top of the LCD. 4. The factory setting for the throttle hold is inhibit. Pressing either the (+) or (-) key will activate Throttle Hold and display the current throttle hold value. 5. Using the (+) or (-) key, adjust the throttle hold value to deliver the proper engine idle rpm for your helicopter. The adjustable range is (-20% -/+ 50%). Once you establish the proper idle value for your engine, you can use this value for throttle hold as well. To shut the engine off for autorotation, a negative or zero value should be input. Note: When the throttle hold is activated, and the switch is on, the indicator on the LCD will change from Off to On. In addition, the throttle trim indicator will be inhibited. 6. Access the THROTTLE CURVE function by pressing the Up key. Function mode HELICOPTER 29

Throttle Curves

7. Access the THROTTLE CUT function by pressing the Down key. 8. To exit the THROTTLE HOLD function, press the Down and Select keys simultaneously. Throttle Curves The mx-12 offers two (2) separate throttle curves with five adjustable points per curve. This function allows you to customize the throttle curve and pitch curve together to maximize engine performance at a particular pitch setting. Once the throttle curves are established, each can be activated in flight using the two (2) position flight mode switch. The flight mode switch offers two selectable ranges: Normal and Stunt. The Normal position should be used as the hover throttle curve. The Stunt position should be used for aerobatic maneuvers and forward flight. Note: The throttle trim and hovering throttle levers are only operable when the flight mode switch is in the normal position. Thus, in normal function it will have no effect. Also, adjusting the hovering throttle lever and throttle trim has no effect on the input values of the throttle curve. Each of the five points of the throttle curve are independently adjustable from 0-100%. These five points correspond to the position of the throttle stick. The illustration below shows the normal throttle curve setting for the dead slow position with throttle trim at default.

Flight mode SW position Go to Pitch Curve menu Go to Throttle Hold menu Press to access the P-LOW, P-1, P-MID, P-3 and P-HIGH curve points Change value/Switch selection Rest value to 0 or Set function to inhibit
The transmitter is factory preset to the throttle curve as indicated by the solid line in the figure at right. Individual middle points can be increased or decreased to suit your specific needs. The throttle trim lever position will affect the low-point position as shown when in the Normal mode Throttle Curve.
Output Value Hovering Throttle Operating Range
Throttle Trim Operating Range P-LOW P-MID P-HIGH

Throttle Stick

Output value Stick position

Throttle curve graph

Accessing the Throttle Curve Function 1. Place the transmitter power switch in the ON position. 2. Press the Down and Select keys simultaneously to enter the Function mode. 3. Press either the Up or Down key until THRO appears in the upper portion of LCD. Note: Use NORM for hover curves and STUNT for aerobatics. We will concentrate on the hovering curve during this example.
4. Press the Select key to select the point of the curve you want to change. 5. Press either the (+) or (-) key to change the value of the current curve point. The range of each point is 0-100% in 0,5% intervals. Note: In each curve, the factory setting indicates INH for points 1 and 3. These values are 25% and 75% respectively if no value changes are made to any other points. If any of the other points have been changed while these points were inhibited, the inhibited points will also change to plot a smooth curve. If you want to keep this from happening, press the Select key until the display indicates P-1 or P-3 at the upper right portion of the LCD. Press either the (+) or (-) key to activate the points 1 (25%) or 3 (75%). The values for each of these curves can then be fully adjusted by pressing either the (+) or (-) key. 6. To set curves for STUNT mode, press the Select to highlight the NORM function, then press the (+) or (-) key to select the STUNT function. Repeat Steps 4 and 5 to complete the procedure. 7. Access the PITCH CURVE function by pressing the Up key. 8. Access the THROTTLE HOLD function by pressing the Down key. 9. Exit the THROTTLE CURVE function by pressing the Down and Select keys simultaneously. Throttle Time Settings The throttle trim lever is only active when the flight mode switch is in the normal position. The throttle trim is used to increase or decrease the engine power when the flight mode switch is in the Normal mode. The throttle

Pitch Curves

trim lever has no effect on positions 1 or throttle hold. Note: Making changes to the throttle trim lever does not change the input values for any of the points on the throttle curve; it merely makes adjustments to the engine idle speed postition.
Hovering Throttle Knob Operating Range (Parallel) Output Value Go to Revolution Mixing menu Go to Throttle Curve menu Select function to change Change Value/Switch selection Reset POS value to 0 or Inhibit function
Throttle Trim Operating Range Output value P-LOW : Full Slow position P-1 : Stick 1/4 position P-MID : Stick Center position

POINT P-LOW P-MID P-HIGH

Graphic display P-3 : Stick 3/4 position P-HIGH : Full High position * Point position is fixed
Hovering Throttle Lever Settings The Hovering Throttle lever increases or decrease the engine output power for the middle three points set for the middle three points set for the throttle curve. As shown in the figure below, use of the hovering throttle lever shifts the curve upward or downward parallel with the original curve. Therefore, operation of the hovering throttle knob does not cause any change to the original settings of the throttle curve. The throttle trim range will affect the throttle curve as shown. The adjustable range of output using the hovering throttle lever is approximately +/- 9%. Note: The Hovering Throttle has no effect on flight mode switch position 1.
Pitch Curves Adjustment of the pitch curve is very similar to the throttle curve adjustment described in the preceding section. A thorough understanding of the Throttle Curve Section will make pitch curve adjustment easier to understand. There are three independent types of pitch curves available: Normal, Stunt, and Hold. Each pitch curve contains five adjustable points: LOW 1, MID 3, and HIGH. Note: The pitch curve for the Throttle Hold function can only be set if this system is activated.

Flight Mode SW position

Output position Stick position

Graphic display

Accessing the Pitch Curve Function 1. Place the transmitter power switch in the ON position. 2. Press the Down and Select keys simultaneously to enter the Function mode. 3. Press either the Up and Down key until PITCH appears in the top of the LCD. Note: Use NORMAL for hover curses and STUNT for stunt curves. We will concentrate on the hovering curve during this example. 4. Press the Select key to select the point of the curve you want to change. 5. Press either the (+) or (-) key to change the value of the current curve point. The range of each point is 0-100% in 0.5% intervals. Note: In each curve, the factory setting INH indicates Inhibited for points 1 and 3. These values are 25% and 75% respectively, if no value changes are made to any other points. If any of the other points have been changed while these points were inhibited, the inhibited points will change to plot a smooth curve. If you want to keep this from happening, press the Select key to display the positions 1 and 3, then press the (+) or (-) key to activate each point. 6. To set curves for STUNT mode, press the Select to highlight the NORM function, then press the (+) or (-) key to select the STUNT function, Repeat Steps 4 and 5 to complete the procedure. 7. To set the curves for the Throttle Hold mode H, Function mode HELICOPTER 31

press the Up key once again until H is displayed, and repeat steps 4 and 5. 8. Access the REVO MX function by pressing the Up key. 9. Access the THROTTLE CURVE function by pressing the Down key. 10. Exit the PITCH CURVE function by pressing the Down and Select keys simultaneously. Throttle Pitch

Normal Hover

Throttle
Output position Graphic display Point P-LOW : Full Slow position P-1 : Stick 1/4 position P-MID : Stick Center position P-3 : Stick 3/4 position P-HIGH : Full High position * Point position is fixed

Stunt 1 Aerobatics

Hovering Pitch Lever The Hovering Pitch lever operates in the same manner as the Hovering Throttle lever. It is only operable while the flight mode switch is in the NORMAL position, and its function is to shift the middle portion of the curve upward or downward. Example of Throttle Curve and Pitch Curve Settings An example of throttle curve and pitch curve settings for aerobatic specifications is shown below in the form of graphs. Details of the curves will differ depending on the helicopter specifications. In these examples, the throttle open-close stroke and autorotation pitch stroke are set 0 to 100 to ease your understanding of other curves. 32 Function mode HELICOPTER

Throttle Hold

MID (INH)
Revolution Mixing (Non-heading lock Gyros only), Programmable Mixing (1~2)
Revolution Mixing (Non-heading lock Gyros only) The Revolution Mixing function mixes tail rotor with the Throttle and Pitch Curve functions to counteract torque from the main rotor blades. When set up correctly, the helicopter should climb and descend without a tendency to yaw in either direction. Because torque reaction varies with different power settings, it is necessary to vary the tail rotor pitch at the same time. The mx-12 offers two separate revolution mixing programs, with independent up and down mixing for each - one for Flight mode position Normal and the other for Stunt. The up mixing adjusts the tail rotor compensation for the mid to high throttle setting and the down mixing adjusts the tail rotor compensation for the mid to low throttle setting. pears at the top of the LCD. 4. Pressing the Select key will highlight either the Up mix, Down mix, or the flight mode switch position. When the flight mode switch is in the displayed position and the throttle stick is in the displayed position, the flight mode will be underlined. 5. Press the (+) key to increase the right tail compensation or press the (-) key to increase the left compensation. Press the Clear to reset to 0%. 6. This setup procedure can be used for revolution mixing for either flight mode switch position Normal or Stunt. The Stunt position should be used for forward and/or inverted compensation. 7. Access the PITCH CURVE function by pressing the Down key. 8. Access the MX1 function by pressing the Up key. 9. Exit the REVO MX function by pressing the Down and Select keys simultaneously. Setting Up Revolution Mixing (non-heading lock, gyros only) Set up the helicopter so that it will hover with the tail rotor trim entered. Establish the helicopter into a stable hover, then steadily increase the throttle to initiate a steady climb. The body of the helicopter will move in the opposite direction to the main rotor rotation. Increase the U, Up, setting until the helicopter climbs with no tendency to turn. At a safe altitude, close the throttle; the helicopter will same direction as the main rotor rotation. Increase the D, or Down, mix until the helicopter descends with no tendency to turn. Throttle stick movements should be slow, and the initial accerlation and deceleration swings should be ignored. The Accerlation Mixing function is provided to compensate for the main rotor accerlation (and decerlation) torque. Programmable Mixing (1~2) The mx-12 offers two programmable mixes to be used for any number of different purposes. This function allows mixing any one channel to any other channel. This mix can remain on at all times or be switched on and off in flight using a number or different switches. Mix number 1 is of the standard variety, in that the digital trim for the master channel only affect the master channel, and not the slave channel. Mix number 2 is of the Trim include variety. This mix is used any time the mix requires the slave channels trim position to be varied when the master channels digital trim position is varied. Each channel of this radio is identified by an abbreviated name. The chart below indicates the channel ant its corresponding abbreviation. The channel name appearing first is known as the master channel or the channel to which you want to mix. The second number is known as the slave channel or the channel that is beeing mixed into the master-channel. For example, AILRUD would indicate aileron-to-rudder mixing. Each time the aileron stick is moved, the aileron will deflect, and the rudder will automatically move in the direction and to the value input. Mixing is proportional, so small inputs of the master channel will produce small outputs of the slave channel. Each programmable mix has a mixing offset. The purpose of the mixing offset is to redefine the neutral position of the slave channel.

MODE 4 (Throttle at left stick)
full throttle left aileron elev. down left rudder right aileron right rudder
Modulation Go to Switch Select menu Go to Modulation menu
Change trainer mode Return to Normal mode
Stick mode To Trainer menu To Modulation menu Select stick mode / direction of control

Direction of control

Helicopter stick mode:

tail rotor

throttle tail rotor tail rotor pitch axis roll roll pitch axis
Accessing the Modulation Function 1. Move the power switch to the ON position while pressing the Down and Select key to access the System mode. 2. Press either the Up or Down key until MODULATION appears at the top of the LCD. 3. Press either (+) or (-) keys to change the modulation type. 4. Pressing the Clear key will also reset the modulation selection to the factory preset S-PCM. 5. Press the Down key to access the MODEL COPY function. 6. Press the Up key to access the TRAINER function. 7. To exit the MODULATION function, press the Down and Select keys simultaneously. Note: In the normal display, the selected modulation type will appear in the upper right of the LCD. 38 System Mode
Select stick mode / direction of control Return to Normal mode
pitch axis tail rotor roll

throttle roll

pitch axis

throttle

This is the procedure for changing stick mode: 1. Hold DOWN and SELECT pressed in simultane ously while you move the On/Off switch to ON; this takes you to System mode. 2. Press UP or DOWN until the screen displays STICK MODE at the top. 3. Press (+) or (-) to change the stick mode. 4. Pressing Clear resets the stick mode to the factory default (Mode 1). 5. Press the DOWN button to move to the MODULATION function. 6. Press UP to move on to the TRAINER function. 7. You can leave the STICK MODE function by pres-
pitch axis tail rotor roll roll pitch axis throttle tail rotor throttle
throttle tail rotor roll roll pitch axis tail rotor

Trainer Function

Trainer Function The mx-12 offers a programmable trainer function with three trainer options: Normal mode: - In this mode the transmitter acts as a conventional buddy-box system. The transmitter can be used as a slave or as a master: however in this mode, the reversing switches and trims must be adjusted so the slave transmitter matches the master transmitter. In normal mode, when the trainer switch is activated, the student has control of all functions and switches. Pilot Link: - When Pilot Link mode is used with the master transmitte, it allows the slave transmitter to be adjusted to factory defaults. The slave transmitter can simply be programmed in a model memory not being used and reset to factory defaults, thus preventing the need to synchronize the trims and reversing switches on the slave transmitter. Also when Pilot Link is used, the student only has control of the 4 basic channels (throttle, aileron, elevator, rudder) while the trainer (master) retains control of all other functions like gear, dual rate, programmed mixes, etc. This allows a pilot to have a test flight on a more complex airplane without having to remember complex switch positions. Pilot Link + Slave: - This mode is used only wehen the mx-12 is being used as a slave transmitter and the other Master transmitter has a Pilot Link program active. By selecting Pilot Link + Slave the transmitter is automatically in the correct programming mode to work as a slave in conjunction with another Pilot Link equipped transmitter. For Trainer operations you require one of the following accessory leads: 4179.1 Trainer lead for mx-12 For use with Graupner hand-held transmitters with DSC sockets 3290.8 Trainer lead for mx-12 For use with Graupner mc- transmitters with trainer sockets

Wir gewhren auf dieses Erzeugnis eine Garantie von This product is warrantied for Sur ce produit nous accordons une garantie de
Die Fa. Graupner GmbH & Co. KG, Henriettenstrae 9496, 73230 Kirchheim/Teck gewhrt ab dem Kaufdatum auf dieses Produkt eine Garantie von 24 Monaten. Die Garantie gilt nur fr die bereits beim Kauf des Produktes vorhandenen Material- oder Funktionsmngel. Schden, die auf Abntzung, berlastung, falsches Zubehr oder unsachgeme Behandlung zurckzufhren sind, sind von der Garantie ausgeschlossen. Die gesetzlichen Rechte und Gewhrleistunsansprche des Verbrauchers werden durch diese Garantie nicht berhrt. Bitte berprfen Sie vor einer Reklamation oder Rcksendung das Produkt genau auf Mngel, da wir Ihnen bei Mngelfreiheit die entstandenen Unkosten in Rechnung stellen mssen. Graupner GmbH & Co. KG, Henriettenstrae 94-96. 73230 Kirchheim/Teck, Germany guarantees this product for a period of 24 months from date of purchase. The guarantee applies only to such material or operational defects witch are present at the time of purchase of the product. Damage due to wear, overloading, incompetent handling or the use of incorrect accessories is not covered by the guarantee. The users legal rights and claims under garantee are not affected by this guarantee. Please check the product carefully for defects before you are make a claim or send the item to us, since we are obliged to make a charge for our cost if the product is found to be free of faults. La socit Graupner GmbH & Co. KG, Henriettenstrae 94-96, 73230 Kirchheim/Teck, Allemagne, accorde sur ce produit une garantie de 24 mois partir de la date dachat. La garantie prend effet uniquement sur les vices de fonction-nement et de matriel du produit achet. Les dommages ds de lusure, de la surcharge, de mauvais accessoires ou dune application inadapte, sont exclus de la garantie.
Cette garantie ne remet pas en cause les droits et prtentions lgaux du consommateur. Avant toute rclamation et tout retour du prouit, veuillez s.v.p. cotrler et noter exactement les dfauts ou vices. Warranty certificate / Certificate de garantie

mx-12 mx-12 mx-12 mx-12