Printed Circuit Board Assembly Replacement for the T 5X Dog Collar | TT 15X Dog Collar

WARNING: Repairing and performing maintenance on Garmin electronics is complex work that can result in serious personal injury or product damage if not done correctly.  Garmin is not responsible for any damages, injuries, or other losses incurred as a result of the work that you or a non-authorized repair provider choose to perform on your product

NOTICE: Garmin is not responsible for, and does not warrant, the work that you or a non-authorized repair provider perform on your product.

This content provides detailed information on the VHF antenna repair of your T 5X Dog Device or TT™ 15X Dog Device.

Tools Needed

• T-6 screwdriver

• Small sized needle nose pliers or tweezers

• Sharp blade

• Soldering Iron

• Solder

• Desoldering Wick

• Liquid flux

• Small multi-purpose brush

• Isopropyl alcohol

• RTV clear silicone sealant

Parts Needed

You will need to contact Garmin Product Support to purchase the following parts.

• Replacement Printed Circuit Board Assembly
  • T 5X PCB-A part #: S12-04556-00
  • TT 15X PCB-A part #: S12-04556-10

Step 1 Run Diagnostics

Garmin provides an application tool that can check the operation of your product. To use this tool you must download and install it onto a Windows PC. Once installed, open the application and follow the instructions to complete the diagnostics test:

Download Garmin Hardware Diagnostic Tool

For additional information about this tool see the following:  Garmin Hardware Diagnostic Tool Compatibility and Requirements

Step 2 Clean Device

Use a small brush mild liquid dish soap to clean the exterior of the device. Ensure that the device is clean and dry before proceeding to step 2.

Step 3  Remove Battery Box

1. Using a small screwdriver, remove the six screws outlined in the image below.
   

Step 4 Inspect Device

1. Open the device and inspect for water ingress. 
   NOTE: If the blue gasket is damaged or you notice rust or moisture inside the compartment, you will need to replace the device.
   

Step 5 Disconnect Plugs

1. Gently pull the white plugs with your fingers to disconnect the power supply from the PCB-A board.
   

Step 6 Remove PCB-A Shielding Fence

1. Use a set of tweezers or small needle nose pliers to remove the silver shielding fence.
   NOTE: Gently pull up on the plate around the arrows shown below. Be careful to not bend the plate! Once the plate starts to break free, you can use your fingers to pop the rest off.
   

Step 7 Remove Screws from PCB-A

1. Use a small screw driver to remove the outlined screws below from the PCB-A
   

Step 8 Remove Adhesive From VHF Antenna Pin

1. Using the image below as a reference, use a sharp blade carefully to loosen the gray/clear puddy on the backside of the PCB-A under the VHF antenna pin.
   NOTE: Be careful to not damage the PCB-A during this step.
   

Step 9 Unsolder PCB

1.  With a solder temp set to 750 degrees fahrenheit (+/- 10 degrees), carefully remove solder using desoldering wick.  Below is an image of the locations where the solder needs to be removed.
2. Once solder is removed, carefully pull the PCB-A away from the backing plate.
    

Step 10 Remove Sealant and Unsolder GPS Antenna

1. Using needle nose pliers or a metal pick, gently remove the sealant covering the GPS antenna where it connects to the back side of the PCB-A.
    
2. With the sealant removed, use a solder gun with the temperature set to 750 degrees Fahrenheit (+/- 10 degrees) to unsolder the GPS antenna.
3. Clean the GPS antenna area by removing any leftover putty. Use Isopropyl alcohol and a cotton swab to clean the antenna cable.

Step 11 Install New PCB-A

1. Begin the installation process by applying liquid flux to the exposed coax on the GPS antenna and solder surface of the PCB-A
   
   
2. Use a solder gun with the temperature set to 750 degrees Fahrenheit (+/- 10 degrees) to solder the GPS antenna coax to the PCB-A.
   NOTE: Be careful not to screen and core.
   
3. Once the soldered area is cooled, cover the area with RTV clear sealant.

Step 12 Install and Solder PCB-A

1. Replace the 4 screws holding the PCB to the back housing.
   NOTE: Do not overtighten screws.  A snug tightness is sufficient.
   
2. Apply flux to the solder points on the board.  This includes the VHF pin and the transformer pins (TT 15 only)
   
3. Use a solder gun with the temperature set to 750 degrees Fahrenheit (+/- 10 degrees) to solder the locations outlined below.
   
4. Install the shielding fence
   

Step 13 Install Battery Box

1. Remove the blue gasket in the battery box and replace it with the new one that comes with the GPS antenna kit.
   
2. Re-connect the power and battery connectors.
   
3. Reinstall the 6 screws to secure the battery box.
   NOTE: Do not overtighten screws.  A snug tightness is sufficient.
   

This completes the printed circuit board assembly replacement. Check operation to confirm the antenna is in working order.  You can use the Garmin hardware diagnostic tool (described at the top) to complete this step.