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PCB Assembly Replacement for the T 5 Mini Dog Device and TT 15 Mini 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 PCB Assembly replacement of your T 5 Mini Dog Device or TT™ 15 Mini Dog Collar.

Tools Needed

  • T-6 screwdriver

  • PH1 Phillips-head screwdriver

  • Small sized needle nose pliers or tweezers

  • Sharp blade

  • Desoldering Wick

  • Liquid flux

  • Small multi-purpose soft tipped brush

  • Cotton tipped swap

  • Isopropyl alcohol

Parts Needed

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

  • Printed Circuit Board Replacement Kit

    • T 5 Mini part #: S12-02823-00

    • TT 15 Mini part #: S12-01997-15

Step 1 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 2 Remove Protective Cover

  1. Using the T-6 screwdriver, remove the 4 screws from the L-shaped clamp plate protecting the VHF antenna.
    NOTE!: The highlighted section in the image below is the location for the short screw.  
    Image showing back of dog collar.

  2. Remove the clamp plate from the device and set screws and plate aside.  Note that one screw is shorter than the others.
    Rear of dog device with clamp plate removed.

Step 3 Remove VHF Antenna

  1. Use the PH1 Phillips-head screwdriver to remove the screw securing the VHF Antenna and set aside.
    Rear of device pointing to screw that holds in VHF antenna.

  2. Remove the antenna by carefully pulling it through the antenna guide.
    Removal of VHF antenna from antenna collar. 

Step 4 Remove Battery Box

  1. Remove the screws outlined in the image below to remove the battery box.
    dog collar image 35
  2. With the battery box removed, inspect the area for water ingress, damaged gasket, rust, moisture, etc. If there are any signs of water ingress, the entire device will need to be replaced.
    dog collar image 36

Step 5 Disconnect Connecters from PCB Assembly

  1. Gently pull up on the wires leading to black connector to disconnect from the board.  The white plug will disconnect from he board by a more traditional unplug method.
    dog collar image 37

Step 6 Remove PCB Assembly Shielding Fence

  1. Using a small set needle nose pliers or plastic pry tool, remove the silver shielding fence.
    NOTE: Gently pull up on the plate around the corners. Be careful to not bend the plate! Once the plate starts to break free, you can use your fingers to pop the rest off.
    dog collar image 38

Step 7 Remove PCB Assembly Screws

  1. Remove the five highlighted screws in shown in the image below.
    dog collar image 39

Step 8 Unsolder and Remove PCB Assembly

  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.
    dog collar image 40
  3. With the old PCB-A removed, use Isopropyl alcohol and a small brush to remove any residual putty from VHF antenna pin.
    dog collar image 41

Step 9 Install New PCB Assembly

  1. Insert the new PCB assembly ensuring that the VHF antenna pin and GPS antenna socket aligns correctly.
  2. Replace the 4 PCB-A screws tightening them snuggly.  Do not overtighten!
    dog collar image 42
  3. Apply liquid flux on the PCB locations
    dog collar image 40
  4. With a solder temp set to 750 degrees fahrenheit (+/- 10 degrees), solder the pins as outlined in the above image.
  5. Replace the shielding fence back onto the PCB-A
    dog collar image 43
  6. Reconnect the white charge port connector
    dog collar image 44
  7. Orientate the black connector as shown below and then gently press the connector into the PCB-A socket.  The connector will snap into place when mounted correctly.
    dog collar image 45

Step 10 Install Battery Box

  1. Inspect the red gasket for damage and to ensure that it is installed correctly.
    dog collar image 46
  2. Install battery box onto the backing plate and secure using the 6 screws.  Tighten snuggly and be careful to not overtighten!
    dog collar image 47

Step 11 Install VHF Antenna

  1. Use both of your hands to align and secure the antenna guide, pushing the replacement antenna back through the guide holes. This may require some moderate force to push the antenna through each guide hole.Installing VHF antenna through antenna guide.

  2. Secure the antenna to the device with the antenna screw using the PH1 Phillips-head screwdriver.
    NOTE: The antenna should orientate so that it fits flush into the antenna channel. This will result in the ring terminal being flush with the threaded opening where the antenna screw is inserted.Back of dog device with arrow pointing to VHF screw.

Step 12 Install and Secure Clamp Plate

  1. Using the T-6 screwdriver, install the short screw in the marked hole below.
    Back of dog device with arrow pointing to location where short screw should be installed.
  2. Install the remaining screws.
    Back of dog device with arrows pointing to where remaining screws should be installed.

This completes the printed circuit board assembly replacement process.  Test the device to confirm it is working as expected. 

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