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820-3115-B no power
- Thread starter Sr. Robot
- Start date
You meant U7000, I suppose.
Post the exact PPBUS_G3H voltage now?
Post the exact PPBUS_G3H voltage now?
Post U7100 basic voltages; pins 1, 2, 3, 9, 12, 13, 14, 15, 17, 19, 20, 27.
"2: 0.0v (ground)"
Diode mode to ground?
Post voltage on both pins of D7005.
Diode mode to ground?
Post voltage on both pins of D7005.
Try fake charger, or lab PSU.
You may need to change Q7080/85.
You may need to change Q7080/85.
Post diode mode to ground on both sides of D7005.
Also check R/C7011.
Also check R/C7011.
"Pins 1 and 2: 0.0"
Do you mean shorted to ground?
If yes, remove C6905 and test again.
Also try another DCIN board.
Do you mean shorted to ground?
If yes, remove C6905 and test again.
Also try another DCIN board.
Post exact ohm resistance to ground at PPBUS_G3H.
Then compare it with all big coils (to ground).
Then compare it with all big coils (to ground).
Remove F7040 and check where the short remains.
Really???
Which pad of F7040 remains the short to ground???
Which pad of F7040 remains the short to ground???