現在のバージョン作成者： jayeff

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オリジナル投稿者： jayeff

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Hi @steve5964

With the charger connected, check if there is 5V DC on J9 as shown in the image below

[image|3249841]

(click on image)

''If there is no 5V at J9,'' then you have to check the components, ''on the underside of the board'' as shown in the following image that shows where the power comes from the USB-C port to get to the +VBUS_CONN lead. I've highlighted some components that you can use as test points to check for the voltage

[image|3249843]

(click on image)

''If there is 5V at J9'', you have to use the schematic and follow both the +VBUS_CONN and the +VBUS_CONN_L leads and check to where the voltage doesn't appear.

Use the search function in your browser to locate the paths in the schematic file to find the components and in the boardview file to find the location of the components on the board.

It may come down to having to remove the board from the case so that you can check components on both sides of the board.

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