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Casio fx-3800P scientific pocket calculator
05-05-2016, 05:14 PM
Post: #2
jebem Offline
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Joined: Feb 2014
RE: Casio fx-3800P scientific pocket calculator
No date codes on any component.
No identification in the SoC processor either.
The PCB reference is: G937-1 3


[Image: Casio_fx-3800P_014.jpg] [Image: Casio_fx-3800P_015.jpg]

Only two passive components can be identified.
One SMD resistor marked as "224" (220000‎Ω = 220K‎Ω).
One legacy pass through tantalum polarized capacitor marked as "J335" (3300000pF = 3.3μF)

[Image: Casio_fx-3800P_017.jpg] [Image: Casio_fx-3800P_018.jpg]
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RE: Casio fx-3800P scientific pocket calculator - jebem - 05-05-2016 05:14 PM



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