Re: Garmin dog training collar.ID help with SMD, Please?



Garmin has protected their products well. Schematics for these devices are not freely available. Repair of devices is possible without service manuals....

Re: Garmin dog training collar.ID help with SMD, Please?



Have you looked at the datasheet for the transistor? Have you disconnected the transistor from the electronic board? There are no exact measurements on the electronic board in the circuit. For an accurate determination, separate the part from the electronic board. Use a device such as the ESR LCR-T4 tester on the Atmega328.
Is the component installed near the audio speaker? On a 3.3 Volt power circuit? If there is a beep when turned on, do not touch it. He is a worker....

Re: Garmin dog training collar.ID help with SMD, Please?

The TT10 collar is the most unfortunate of the entire line. Can only work with Alpha 100.
He thinks his firmware for a very long time. He slows down. Do not torture the components on the board! Most likely they are correct.
If the main components fail, the device does not turn on!
Update firmware. Change ID in settings. Check if the feature is enabled.
Go outside and wait for satellites and communications on the collar and Alpha 100.
Check.
Does not work? Track the circuit from the output...

Re: ID help with SMD, Please?

[QUOTE=Macroman;1162737]Continuing with the garmin collars...Here is another TT10 everything working except shock and tone. I'm posting this also hoping that it may help others with these issues.

Replaced the GPS module and collar will connect with handheld Alpha100 and able to track but the shock and tone functions are still not working.
I found 4 components (capacitors) that are reading short to ground (marked with red marker), 1 on one side the board near the SN9B019 chip (multi-voltage power controller) and 3 more capacitors...

Re: Garmin dog training collar.ID help with SMD, Please?



resistor 1Ω...

Re: Garmin dog training collar.ID help with SMD, Please?

The inductors are damaged. This is the hull design.
There is not enough space between the battery and the board.
When used and any strikes are damaged.

Re: ID help with SMD, Please?

DC50, T5? Damaged inductors on all Garmin collars. Occurs when the shield cover is struck or closed. This is their disease. In this state, they work and the collar turns on. SN9B019 This is a multi-voltage power controller.
If you want to replace the throttle, then take it from a donor or measure a serviceable one.
If your collar does not turn on, then the coil is not the problem.

Re: New Members - please post your introductions here

Hello.
My name is Alexander.
Since childhood, I love different electronic devices. I have always enjoyed working with a soldering iron and understanding circuits.
In 2007, my first old computer appeared with an AMD 1.3 Hz processor and 256mb SDRAM.
I started researching and experimenting. Since then, repairing PCs has become my hobby and has grown into my main occupation.
Today I can easily work under a microscope with small details or change BGA chips.
Very weak in programming. I missed...