4HAWKS A138 DJI RC Controller User Manual

4HAWKS A138 DJI RC Controller

Product Information

• Product Name: RC Controller
• Product Description: The RC Controller is a device designed to control remote-controlled vehicles. It provides a wireless connection between the user and the vehicle, allowing for precise control and maneuvering.

Specifications

• Antenna: SMA antenna ports
• Controller Housing: Two halves with fixing screws
• Battery: Two batteries connected to the PCB
• Communication Port: Connected to the PCB
• Antenna Modules: Two modules connected to the PCB via cables

Product Usage Instructions

1. Step 1: Unscrew the fixing screws
   Using a screwdriver, unscrew the two fixing screws located on the underside of the controller.

2. Step 2: Remove the control stick mount
   Remove the silicone control stick mount from the back of the controller housing to reveal the screw entries.

3. Step 3: Unscrew the back cover
   Unscrew the two fixing screws on the back cover of the controller.

4. Step 4: Open the controller housing
   Gently lift the tabs on the two halves of the controller case using soft plastic tools. When all tabs are disengaged, lift the back of the housing to open the controller.

5. Step 5: Remove the motherboard sheet
   Using a Phillips screwdriver, remove the 4 screws securing the sheet protecting the motherboard and lift it up.

6. Step 6: Disconnect the first battery
   Pick up the protective patch covering the connector that connects the first battery cable to the PCB. Disconnect the first battery.

7. Step 7: Disconnect the second battery
   Lift the protective patch from the connector of the second battery and disconnect the connector from the PCB.

8. Step 8: Remove excess adhesive paste
   Gently grab the communication port connected to the PCB and remove any excess adhesive paste connecting it to the port.

9. Step 9: Remove the communication socket
   Remove the communication socket from the PCB.

10. Step 10: Unscrew the first antenna module
    Use a Phillips screwdriver to unscrew the first antenna module from the housing.

11. Step 11: Unscrew the second antenna module
    Similarly, unscrew the second antenna module.

12. Step 12: Disconnect antenna cables
    Disconnect the antenna cables (white and black) from the ports on the PCB, taking care not to damage them or the U.FL socket.

13. Step 13: Remove antenna modules
    Remove both antenna modules along with their cables from the controller.

14. Step 14: Use a countersink
    To obtain a smooth, conical hole profile, use a countersink for wood or other materials.

15. Step 15: Remove flat clips
    Using a sharp knife (scalpel), remove the flat clips from both sides of the controller housing.

16. Step 16: Cut debris from holes
    Use a sharp knife to remove any debris from drilling holes, both from inside and outside of the controller body.

17. Step 17: Route SMA antenna ports
    The SMA antenna ports with the cables will be routed into the two holes marked in the photo. Ensure that there are no traces of the removed tabs in these places.

18. Step 18: Pass the pigtails through holes
    Pass the two pigtails included in the antenna box through the drilled holes. Make sure to put a spring washer on the SMA port thread from the inside of the controller.

19. Step 19: Set cables in upward direction
    The cables soldered to the back of the SMA ports should be set in the upward direction.

20. Step 20: Reassemble the controller
    Follow the reverse steps to reassemble the controller, ensuring all components are securely attached and screws are tightened.

FAQ

• Q: Do I need any special tools to modify the controller?
  A: You will need a screwdriver, soft plastic tools, a sharp knife (scalpel), and a countersink for wood or other materials.

• Q: Can I use any SMA antenna with this controller?
  A: Yes, you can use any SMA antenna compatible with the controller.

Installing the antenna requires to modify the controller by removing the factory antenna modules and installing an antenna adapters in their place, leading the signal outside the transmitter housing.

• Attention! The installation will involve both, opening the controller housing and drilling two holes on its top panel (needed to lead out the SMA connectors).
• Before modifying, look trough this pictorial installation guide, read the step-by-step instruction, and make sure you have the right tools and time to modify the controller.

Here we go !

1. STEP 1 Unscrew the two fixing screws on the underside of the controller.
2. STEP 2 Remove the silicone control stick mount from the back of the controller housing to reveal the screw entries.
3. STEP 3 Unscrew the two fixing screws on the back cover of the controller.
4. STEP 4 Using soft plastic tools, gently lift the tabs on the two halves of the controller case. When all tabs on all sides are disengaged – lift the back of the housing to open the controller.
5. STEP 5 Using a Phillips screwdriver, remove the 4 screws securing the sheet protecting the motherboard and lift it up (watch out for 
6. STEP 6 Pick up the protective patch covering the connector that connects the battery cable to the PCB.
7. STEP 7 Disconnect the first battery.
8. STEP 8 Lift the protective patch from the connector of the second battery and disconnect the connector from the PCB.
9. STEP 9 Gently grab the communication port connected to the PCB and remove any excess adhesive paste connecting it to the port (if 
10. STEP 10 Remove the communication socket from the PCB.
11. STEP 11 Expose the antenna ports on the PCB (keep the removed spacer, we’ll use it again later)
12. STEP 12 Use a Phillips screwdriver to unscrew the first antenna module from the housing.
13. STEP 13 Similarly, unscrew the second antenna module.
14. STEP 14 Gently, taking care not to damage the cables and the U.FL socket – disconnect the antenna cables (white and black) from the ports on the PCB.
15. STEP 15 Remove both antenna modules along with their cables from the controller.
16. STEP 16 Mark the drilling point for a Ø6mm hole on the top panel of the controller case, where the antenna port will be led out. The point should be brought out exactly at the height of the flat catch indicated by the arrow in the photo and coincide with the place where the manufacturer placed the icon – symbol of the transmitting antenna.
17. STEP 17 Similarly to step 16, mark the second point where a Ø6mm hole will be drilled for the antenna port. The distance between the centers of both holes should be 49mm.
18. STEP 18 First make a positioning hole with a drill bit of smaller diameter (we recommend Ø3mm) at both drilling points.
19. STEP 19 Using a drill bit with a larger diameter, make a precise widening of the hole (do not use drill bits larger than Ø6mm!). A conical drill bit or a drill bit for ceramics (in the photo) is perfect for countersinking.
20. STEP 20 To obtain a smooth, conical hole profile, it is recommended to also use a countersink for wood or other materials.
21. STEP 21 Using a sharp knife (scalpel), remove the flat clip from the controller housing. (Removing the catch will not have any negative effect on matching the two halves of the controller housing)
22. STEP 22 Also cut the second flat hook on the other side.
23. STEP 23 Use a sharp knife to remove any debris from drilling holes, both from inside, and outside of the controller body.
24. STEP 24 The SMA antenna ports with the cables will be routed into the two holes marked at the photo. Make sure that there are no traces of the removed tabs in these places.
25. STEP 25 Pass the two pigtails included in the antenna box through the drilled holes. Make sure to put a spring washer on the SMA port thread from the inside of the controller!
26. STEP 26 The cables soldered to the back of the SMA ports should be set in the upward direction.
27. STEP 27 You will find a few cable guiding channels inside the controller – these will be very helpful to position the routed cables.
28. STEP 28 Lead the cables through the routing guides and then under the communication tape that connects the two parts of the mother-
29. STEP 29 Connect the U.FL connectors to the two antenna ports on the PCB.
30. STEP 30 Secure the connected connectors with a piece of soft cloth (removed in step 11).
31. STEP 31 Connect the first battery and secure the connection with the adhesive material.
32. STEP 32 Connect the second battery and secure the connector.
33. STEP 33 Cover the PCB protection sheet.
34. STEP 34 Fix the protective plate with four screws in the places shown at the picture.
35. STEP 35 Connect the communication socket. Make sure that the connector is set firmly there.
36. STEP 36 Carefully put the two halves of the controller case together, one by one “clicking in” the connection tabs. Be careful not to accidently push the SMA antenna sockets inside the controller case!
37. STEP 37 After assembling the housing, put on the SMA antenna threded connector, in the correct order: 1 – flanged washer, 2 – anten-na mounting bracket, 3 – claw washer, 4 – tighten everything up tightly with a nut (for convenience, use an 8mm socket wrench or the included wrench in the package with the antenna)
38. STEP 38 Tighten the two screws securing the back side of the case.
39. STEP 39 Tighten the two screws securing the bottom side of the case.
40. STEP 40 Place the silicone insert with the control sticks in place.

Your controller is now ready to work with the Raptor Antenna!
Your last step will be to attach the antenna to the mounting fixed on the controller, as well as connect the SMA ports between the antenna and the controller using the 15cm long RPSMA-RPSMA cables included in the set.

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