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PPDCIN_G3H at lower voltage

Hi Everyone

I have a board 820-00165-A

The PPDCIN_G3H should be at 18.5 V , but it is at 14.90

I see that PPDCIN_G3H comes from J700, which is the conector to the I/O Board.

What would be the next step on this issue?

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First of all, Is it powering on? If PPBUS_G3H is at 8.56 I wouldn't worry about it and I'd look elsewhere. Try a new DC in board and a KNOWN GOOD charger and it should be set. If it is still at 14.65 we can go from there but I don't think this is an issue.

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14 Comments:

PPBUS_G3H is in 8.58 so I would say it is within the range.

And the charger is proven to work Ok.

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PPBUS is fine. 8.58 is perfect. Does the system power on?

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No, and not even the fan

BTW I forgot to add that I have not tried switching the DC board.

I'm from a place where I have to wait at least a week to get the replacements. Should I go ahead an order it?

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DC IN board is fine if it has PPBUS. U1900 area? PPvRtc_g3h present? PM_SLP_S4 present?

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PPVRTC_G3H is at 3.42 schematics says it should be at 3. I'm not sure if that is within the range.

PM_SLP_S4 I measure no voltage if that's what present means

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Ernesto will be eternally grateful.
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