RCS OMEGA-3v9s Manual Download Page 2

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INSTALLING THE 

#

OMEGA-3v9s 

ESC

 

We usually supply the 

OMEGA-3v9s

 

ESC

 with a Lemon brand Rx which is simply plugged in upside down on the ESC 

pcb in the 24 pin socket. The two parts are bench tested to make sure they work correctly. 
It is most important the two parts line up correctly.  Pin positions are marked on both the back Rx and ESC. 
Servo leads are not needed.   
You can obtain the ESC without an Rx supplied and you can use one of your choice.  As long as the servo pin outs on the 
Rx & ESC match.  If they do not match, RCS has a prewired adaptor # Rx-ADAPT with four servo cables. 

 

THESE INSTRUCTIONS REFER SPECIFICALLY FOR USE WITH THE 

RCS

 TX-4, TX-8 & TX-20 HANDPIECES. 

IT CANNOT BE USED WITH ODD NUMBERED TX HANDPIECES.  CONTACT RCS TO USE A STICK RADIO. 

 

YOU CAN ONLY MIX BRANDS OF R/C IF THEY ARE DSM2.

  

THE 

RCS 

OMEGA-3v9s

 

SYSTEM IS ONE PART INTO WHICH YOU PLUG ALMOST ANY DSM2 or DSMX RX. 

OR

; USE ANY BRAND OF R/C WITH THE OPTIONAL EXTRA # Rx-ADAPT ON THE ESC AND PLUGGED INTO THE 

APPROPRIATE CONNECTIONS ON THE RX.  PLEASE NOTE. PDF WIRING INSTRUCTIONS ARE HERE: 

 

http://www.rcs-rc.com/pages/instructions

 

THESE INSTRUCTIONS REFER TO OUR OWN DSM2 TX-8 TX HANDPIECES. 

 

CONTROL FUNCTIONS. 

The 

TX-4,

 

TX-8 & TX-20 

handpieces use a spring loaded SPDT switch for selecting direction change & a large knob for 

speed control.  Apart from direction change, the operation is exactly the same as for the odd numbered TX handpieces. 

 

USING EXTRA SERVOS.

   

The 

OMEGA-3v9s

 

ESC

 permits the operation of a regular servo using Ch # 5.  Simply plug the servo leads the right 

way  around  into  the  Ch  #  5  servo  header  so  marked  in  the  RX.    See  the  ESC  diagram. 
Servo outputs for channels 6 & 7 are available for use only with a 7 channel Tx. 

 

SOUND TRIGGER CONTROLS.  TX-8. 

The 

TX-8

  has  four  pushbuttons  on  the  handpiece  that  are  intended  to  trigger  4  x  sound  effects  or  control  accessories.    

They operate F1, F2, F3 & F4 on this ESC.  The Ch 5 pushbutton is available for a servo control feature such as Kadee 
servo uncoupling. 

 

A pushbutton on the 

ESC

 pcb is used for initial speed calibration and making system program changes such as Start/Max 

voltage, default direction start, system reset & sound trigger outputs from momentary to latch ON 

– OFF. If you need to 

calibrate the system proceed to page # 6.  Or: See URL on page # 1. 

 

LOCOMOTIVE SEPARATION.

   

2.4 GHz R/C systems are not separated with crystals.  Every TX has a unique identifier code.  They are all legal for air & 
ground use.  

Most SPEKTRUM RX’s (and DSM2/DSMX clones) can be 

“BOUND”

 to the TX-xx handpieces. 

 

“BINDING”

 must be done before the system can be used.  See page # 4. 

 

You can mount the 

OMEGA-3v9s

 

PCB with double stick tape or non conductive silicone.  Do not allow metal objects to 

touch the rear of the PCB.  Damage to the PCB may result. 

 

 

 

 

Plug in the Rx. 

It is most important that pin #’s line up.. 

Push Rx firmly into place for best 

connectivity. 

Rx in position. 

Bend aerials up slightly. 

 

PLACING RX ANTENNA.

   

It  does  not  matter  where  you  place  the  RX  and  antenna(s).    We  have  at  least  15

0’ +  range  with  the  system  in plastic 

locos.  There is 

NO

 

“glitching” or “Rusty Bolt Effect”.  2.4 GHz RX’s have been successfully used for some years with the 

RX & antenna inside a dummy water tank of a live steam loco and inside expensive brass electric locos. 
Turn the 2.4 GHz TX OFF to save the batteries & the loco will “Cruise” along until the TX is turned ON again & manual 
control resumed. 

N.B. Not the low cost manua

l bind RX’s.  

They have pre-set Failsafe settings. 

Summary of Contents for OMEGA-3v9s

Page 1: ......

Page 2: ...am Servo outputs for channels 6 7 are available for use only with a 7 channel Tx SOUND TRIGGER CONTROLS TX 8 The TX 8 has four pushbuttons on the handpiece that are intended to trigger 4 x sound effec...

Page 3: ...cting Although there is output overload and short circuit protection built into them it is essential the battery supply be fused for overall system protection See the wiring diagram pages LOCOMOTIVE L...

Page 4: ...lights will immediately blink three times If LED does not come on within 10 seconds or continues flashing every 2 seconds scanning the bind has failed Switch TX and RX off move them closer together or...

Page 5: ...rottle knob is set to Min i e fully CCW 2 2 Press and HOLD ESC programming push button down turn the ESC Rx ON Release the pushbutton when LED s light Reaction Both ESC LED s both front rear lights wi...

Page 6: ...to find out the knob setting at which the fastest loco matches the top speed of the slowest loco Then with the fastest loco stopped and the direction set to neutral Move the throttle knob to the lowe...

Page 7: ...the knob go once the desired speed has been reached The speed will stay the same until the knob is rotated CW or CCW Min Max speed takes 2 x seconds 4 3 SLOWING DOWN Turn the knob CCW back to the desi...

Page 8: ...STEM ON WHEN THE LOCO IS SWITCHED ON THE PCB LED s DO NOT LIGHT OR BLINK This is most likely caused by the throttle knob not being at MIN Turn the knob fully CCW to MIN WHEN THE LOCO IS SWITCHED ON TH...

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