CASIO fx-5200P Scientific Computer teardown

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The three flex connectors from the alpha keyboard.



Details of the zebra connectors to link the alpha keyboard to the main PCA.




The keyboard membranes have embedded hard plastic keys.



PCA back side.




PCB top side (main component side).
- Hitachi HD61747B16 - SoC processor (CPU, LCD & KB driver, ROM)
- Hitachi HD61914C- 1KByte static RAM

This fx-5200P uses the same chip set as found on other Casio machines, only differing on the ROM firmware. For instance:

- fx-4000P
SoC processor: Hitachi HD61747B38
Memory: HD61914 8kbit static RAM

- FC-200
SoC processor: HD61747B55
Memory: HD61914 1KByte static RAM.




General parts view.