Where to locate a complete set of schematics

[EdmundsEcho]

Hello --

I was hoping that you might point me to a set of schematics for the board. The red light goes on but does not power-up beyond that. Upon visual inspection of the board, I suspect that a component may have been damaged when I was "upgrading" to a larger battery (the battery has same electronic spec, just a bit longer). The components are not damaged due to a reverse polarity issue, but likely when I was cleaning off some residual flux.

Thanks in advance for letting me know.

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