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Knowledge base Quark Installation & setup

Question #101
Accessing setup modes directly from your transmitter.
Answer

In cases where the gyro is mounted between the helicopter frames it may not be possible to reach the SET button. Your Quark gyro offers a second method to access the setup mode directly from your transmitter. The procedure stated below should be used in conjunction with the information, safety and warning notes stated in the user guide.

SERVO TYPE SELECTION

To access the servo configuration mode hold the rudder stick to full left and toggle the gain/mode switch or your transmitter continuously and immediately after powering on the gyro. Continue to toggle the switch until the Status light starts flashings in violet colour. The number of flashes indicates the currently selected servo type.

To change the servo type move the rudder stick left or right until the desired option is reached. Toggle the switch to Rate and back to AVCS mode to store your selection. The Status light turns on in steady violet colour to acknowledge that the servo type is changed. You may now power off the gyro.

GYRO CONFIGURATION

To access the configuration mode leave the rudder stick to neutral and toggle the gain switch continuously and immediately after powering on the gyro. Once the configuration mode is active the tail servo will chatter twice then rest in its centre position.

Important: Before configuring your gyro ensure that the rudder reversing has been correctly set at the transmitter. The gyro relies on this configuration to adjust its internal gyro direction reversing as required.

Step 1: Gyro direction reversing
The first parameter to be configured is gyro direction reversing. Simply push the rudder stick to the left and the gyro will automatically match your radio system. As the rudder stick is operated the tail blades move to allow visual confirmation of the correct rudder behaviour. The Status light switches on/off in violet to indicate if reversing is active.  When satisfied, toggle the gain switch to Rate and back to AVCS mode. The servo will chatter once to confirm completion of this step. Important: If the gyro is mounted in inverted orientation you will need to push the rudder stick to the right instead

Step 2: Adjust low servo endpoint
The servo is now resting at the low endpoint position and the Status light is flashing violet twice. Using the rudder stick adjust the servo position until you achieve maximum tail rotor pitch without binding on the mechanical limits. When satisfied, toggle the gain switch to Rate and back to AVCS mode. The servo will chatter once to confirm completion of this step.

Step 3: Adjust high servo endpoint
The servo is now resting at the high endpoint position and the Status light is flashing violet three times. Using the rudder stick adjust the servo position for maximum tail rotor pitch without binding. When satisfied, toggle the gain switch to Rate and back to AVCS mode. The servo will chatter twice to confirm completion of the configuration mode.

Upon completion the gyro will store the new configuration to its internal memory and switch the LED continuously on. You may now power off.

 

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