INNOVA Timing Light Troubleshooting (Need some help with this one)

In this video we take a look at a faulty INNOVA 5568a Timing Light. This belongs to a friend and I would very much appreciate any help looking further into the microcontroller output if possible. Even though this is not a successful repair, I still wanted to post this video since we did look inside and spent some time troubleshooting including looking at some signals. Any help on this or any suggestions are greatly appreciated. Hope you find this video helpful and thanks for watching!

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