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Additional Pictures 

 

The modifications observed with a TI-88 "PVT 2 Build" with Serial Number 001101 and "PVT 3 Build"
with Serial Number 002203 near the battery contacts and Peripheral I/O connector J2.

The reverse engineered schematics of the modifications with PVT 2 and PVT 3 builds.


horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, October 13, 2019. No reprints without written permission.