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Edit by Yang Zhao

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[title] Test the TVS diode
[* orange] The TVS diode is located between the antenna and a large IC on the RJ45 port side of the board.
[* orange] The diode in question
It's PCB marking is '''D6'''.
[* black] It
is a LittleFuse 24V uni-directional TVS diode, with J leads (SMBJ24A). Note the location of the white bar on the diode, towards the antenna.
[*
which marks its orientation.
[*
black] Use a multimeter or ohmmeter to test that the diode has indeed shorted. It should read significantly higher resistance in one direction relative to the other. A shorted diode will read less than 1Ohm in both directions.
[*

[*
icon_note] If the diode is not shorted, then something else is wrong, and proceeding further may or may not help fix your access point.
[* orange] The TVS diode is located between the antenna and a large IC on the RJ45 port side of the board.
[* orange] The diode in question
It's PCB marking is '''D6'''.
[* black] It
is a LittleFuse 24V uni-directional TVS diode, with J leads (SMBJ24A). Note the location of the white bar on the diode, towards the antenna.
[*
which marks its orientation.
[*
black] Use a multimeter or ohmmeter to test that the diode has indeed shorted. It should read significantly higher resistance in one direction relative to the other. A shorted diode will read less than 1Ohm in both directions.
[*

[*
icon_note] If the diode is not shorted, then something else is wrong, and proceeding further may or may not help fix your access point.