Re: MTT4BT- Will not power with USB 2.5 Cable plugged in.
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What is a USB 2.5 cable?? Are you referring to the 2.5mm jack for PortA?
Sounds like a wiring issue - possibly ground.
I am not familiar with the MTT4BT.? I have the MTT4B that I added my own Bluetooth module to. The MTT4B has 2 ports: ? MiniDIN with 6-pins (PS2 keyboard style) => PortB with RF module power and 5V out for GPS.
? TRS style 2.5 mm jack. What cables are you using? ? Home made, or Byonics purchased?
On Friday, July 16, 2021, 8:23:28 PM EDT, <toy4trax@...> wrote:
I had everything working on the bench, went to install on the vehicle and now not....
Back to the bench- MTT4BT will not power up if the USB 2.5 cable is plugged in to either the A port, or USB port.
MTT4BT is being powered from the DB9 cable(not the pins themselves) just the 12v leads.
Verified i'm getting 12v at the source.
Powers up just fine if the USB cable is unplugged from the MTT4BT
Powers up just fine if the USB cable is unplugged from the computer.
Lights-
Boot sequence is good.
Red light stays on
When packet is received, I can hear a relay click, lights indicate normal operation, and digi.
Can't get into programming mode at all now...
What to do?
-Brian
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