on the new battery which will only fit one way round. TAKE CARE, if force is needed, the connector is
probably the wrong way round.
Replace the battery cover by sliding it up from the bottom making sure that the retaining tab goes
under the case rear. The battery is held in place with a piece of foam attached to the cover and you will
feel some resistance as the cover is pushed down onto the battery.
On/Off Toggle Switch
Tx22v2 has a latching toggle switch for power with a separate indicator LED. Power is on when the toggle is
down. The LED lights continuously when the transmitter is on and flashes when Tx22v2 is in bind mode (see
below). It is best to switch the transmitter on before the receiver. If a receiver is switched on with Tx22v2
off, it is likely to enter bind mode with rapid flashing of the LED on the receiver board. If you did not intend
to bind, switch the receiver off, then switch Tx22v2 on followed by the receiver.
Speed/Throttle Knob
The centre-off or low-off throttle type is actually implemented in the receiver. Transmitter difference are the
front-panel label and whether there is a centre-click on the throttle.
centre-off
Off/Stop is in the centre of rotation when the white dot is pointing toward the top of the transmitter; a
'click' will be felt as the knob is centred. Rotating the knob to the right (clockwise) will move your loco
forwards. If it goes in reverse, you need to swap the two wires connected to the motor in your loco.
low-off
Off/Stop is at the fully counter-clockwise rotation of the knob and speed increases at the knob is rotated
clockwise; the toggle switch is used to control direction. The receiver will change the motor direction
only when the throttle knob is at zero.
Inertia/Momentum Knob
Unless reconfigured to operate R/C channel 4 or 5, the Inertia knob position is used internally to control
acceleration and deceleration. The Throttle knob sets a target speed and Inertia changes the transmitted
throttle value slowly until it reaches that target. The LED flickers while a change is in progress.
To stop quickly both Throttle and Inertia must be in the 'off' position. Inertia is off when turned fully
to the left.
Selecta
This is a 12-way rotary switch with positions matching those of a clock. It allows 12 locos to brought in and
out of service without touching them and requires a Selecta enabled receiver. Selecta uses R/C channel 2; a
receiver stores the value of channel 2 when it is bound. During normal operation, the received channel 2
value is compared with the stored value. If they match (plus/minus a small delta), the receiver responds to
the transmitter controls; if they don't match the receiver does not respond and, usually, the receiver LED will
show a double flash to indicate that is it not selected.
Bind Button
If a receiver has not previously been bound, it has to be 'paired' with the transmitter. Binding is only
required once per receiver.
1. Put your receiver into Bind mode (if a Micron or Deltang receiver, switch it on and wait for the LED to
flash fast).
2. Press and hold the Bind push-button on the transmitter.
3. Switch the transmitter on by pushing the Power button and then release the Bind button.
4. Binding is complete when the receiver LED stops flashing.
During normal operation, the bind button can be used as an auxilary control - e.g. horn or whistle sound
trigger. TAKE CARE to avoid holding the bind button down for 20 seconds or more as this will cause the
transmitter to enter calibration mode or reconfigure some of the controls.
Toggle Switch and Bind Button
The toggle switch and Bind button can be used to control auxiliary functions such as lights, sound module
triggers, couplers, etc. via the P or F outputs on Micron or Deltang receivers.
Receiver programming is used to associate an action on one of these controls with a change to one or more
receiver outputs. Receiver programming is beyond the scope of this transmitter manual, you should refer to
the programming instructions for a particular receiver.
Micron R/C, www.micronradiocontrol.co.uk, +44 (0)1653 696008
Tx22v2 User Information : 2 of 4
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