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  1. #1
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    820-00165 PP5V_S5 Low Voltage

    hey all! got a 820-00165 here that is driving me nuts! It has green and orange light on charger, PPBUS_g3H is 8.56V which is good for airs... But PP5V_S5 is giving me just 3.25V. Already replaced TPS51980 and C7400, C7505, C4810 and U7400 because I thought that maybe one of those components may be dragging the line down, but no luck! Any hints on where to look? I noticed that if I heat the area near U7400 the voltage goes up to 4.7V, but as soon as I take the heat away the voltage starts to drop.

 

 

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