Blog

2026
- June
  - DOT320 PDA pinout
    06/21/26
    I have repaired a VTS air handler unit commanded by this PDA.
    The cable was like this when I found it:
    
    Some trial and error led to the following pinout:
    
    PDA conn:
    LCD is upwards
    18 pin
    
    pin 1 left
    1 green
    2 purple - VBAT
    3 X
    4 Brown
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