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​Emoji :tools: Tools required

  • 7mm spanner

  • Large Phillips screwdriver

  • Small Phillips screwdriver

​Emoji :gear: Spare parts required

  • Motherboard H-1029-A


Issue description: Inch Duo is in booting stage and the reboot of the station doesn't help.

Booting showing on the INCH DUO

Sometimes this happens due to voltage fluctuations on the motherboard. The SOM then becomes corrupted and stays in boot loop, so it needs to be replaced.

To prevent the voltage fluctuations we recommend replacing the motherboard (H-1029-A), a guide how to replace the motherboard in INCH Duo can be found here: ​

https://landisgyr-evsolutions.atlassian.net/wiki/spaces/TSFP/pages/3924838004
.


Replacement process:

Hold the SOM with fingers and carefully lift it (SOM is connected to the motherboard with two multi pin connectors and two PCB spacers – marked in red).

SOM PCB spacers
Lifting the SOM

Install PCB spacers on motherboard and align new SOM with PCB spacers and multi pin connectors on motherboard.

PCB spacers mounting point

Firmly press on SOM to secure the connection with motherboard (audible click).


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