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Reply to "DCS WIFI Module Killed My TIU?????"

First of all, IF you do not have power applied to VAR post, than they can not get hot even if loose.  NO RED LED is a problem and it has nothing to do with VAR Power.  NO DCS signal is also an issue.  IF the chips that are powering the DCS signal generator are bad that can cause a Voltage Regulator to over heat.

Is it possible you plugged a wrong cable into the wrong TIU port at some point and powered it up?

If you apply power to FIX1 input and the RED LED does not come on and Flash at least once, and the TIU gets hot.  You have a damaged TIU that needs to be repaired.  G

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