MMWAVEICBOOST: power issue - D8 (NRST) LED keeps on blinking

Darshan Shet

Part Number: MMWAVEICBOOST

Hi Team

Looks like there is power issue with the carrier board. when it is powered, only single LED D8 ( NRST) keeps on blinking.

attached image of the board, when it is powered ON.

over 4 years ago

0 CHETHAN KUMAR Y.B. over 4 years ago

TI__Mastermind 25835 points

Hello,

All the boards would be tested for it's functionality before it's gets shipped from TI factory. Could you please share better image of full board top and bottom side of the board.

Potentially 5V to 3.3V might have been damaged, as 3.3V LEDs are not showing up, on the bottom side of the board LEDs. Could you please elaborate what happened to this board? was there any 12V or any other power adapters applied to board? or any incidents happened to board?

Thanks and regards,

CHETHAN KUMAR Y.B.

0 Darshan Shet over 4 years ago in reply to CHETHAN KUMAR Y.B.

Prodigy 20 points

12V adapter connection is not possible, but I cannot be completely sure. No other incident has happened.

attached the better image of board from top to bottom.

0 CHETHAN KUMAR Y.B. over 4 years ago in reply to Darshan Shet

TI__Mastermind 25835 points

Hello,

Thank you for sharing the front side of the picture, could you please share the back side of the board and serial number?

Also could you please check the voltage on the SOP jumper 3.3V side shown below, If you don't get 3.3V then Power management circuits have gone bad, you have to replace the board.

Thanks and regards,

CHETHAN KUMAR Y.B.

0 Darshan Shet over 4 years ago in reply to CHETHAN KUMAR Y.B.

Prodigy 20 points

Please find the attached the backside picture of the board.

carrier board - back side picture

Regards

Darshan

0 CHETHAN KUMAR Y.B. over 4 years ago in reply to Darshan Shet

TI__Mastermind 25835 points

Darshan,

Could you please check the voltage on the SOP jumper 3.3V side shown above, If you don't get 3.3V then Power management circuits have gone bad, you have to replace the board.

Thanks and regards,

CHETHAN KUMAR Y.B.

0 Darshan Shet over 4 years ago in reply to Darshan Shet

Prodigy 20 points

Hi Chethan

Just checked the voltage level at the pin you have mentioned, It is not at 3.3V.

Regards

Darshan

0 CHETHAN KUMAR Y.B. over 4 years ago in reply to Darshan Shet

TI__Mastermind 25835 points

Darshan,

Thanks for the confirmation, looks like, Power management circuits have gone bad, you have to replace the board.

Thanks and regards,

CHETHAN KUMAR Y.B.

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MMWAVEICBOOST: power issue - D8 (NRST) LED keeps on blinking