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===== Internal Connector Pinouts =====

On the main circuit board, J8 is an unpopulated 5x2 connector near the CPU blob. From flipping bits, I've determined that the pinout is as below. **NOTE: This pinout has not been verified independently (we welcome verification).**

^Pin ^Signal^
|J8-1 |+3VDC Supply |
|J8-2 |PC22 |
|J8-3 |PC29 |
|J8-4 |PC27 |
|J8-5 |PC28 |
|J8-6 |PC21 |
|J8-7 |PC18 |
|J8-8 |PC20 |
|J8-9 |PC19 |
|J8-10 | Ground |

J7 is an unpopulated 4x2 connector. It contains the 4 ADC inputs.  (Full scale appears to be 1.8V.)

^Pin ^Signal^
|J7-1 |ADC channel 1 |
|J7-2 |ADC channel 0 |
|J7-3 |ADC channel 2 |
|J7-4 |Ground |
|J7-5 |ADC channel 3 |
|J7-6 |Ground |
|J7-7 |+3VDC Supply |
|J7-8 |Ground |

On the main circuit board, the serial programming connector is visible when the slide-off back cover is removed to replace batteries. It appears to provide the following signals. *NOTE: This pinout has not been verified independently (we welcome verification).**

^Pad ^Signal ^
|J31 |+3VDC Supply |
|J32 |Reset |
|J33 |Serial out (logic level) |
|J34 |Ground |
|J35 |Serial in (logic level) |
|J36 |Erase? |

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