XONEX ELSI III / DATAEXAC Calculator

XONEX ELSI III / DATAEXAC Calculator

Manufacturer: XONEX

Model: ELSI III / DATAEXAC

Year: 1973

Form: Pocket

Functions: Basic four, accumulator

Number of Digits: 8

Display Type: VFI

Display: ISE DG 8F
Logic Technology: LSI

Diodes: 15

Transistors: 3

IC Complement: Rockwell 15330 PC

Batteries: 5 AA

Power Connector: 7.5 VDC, + tip, DC
Tech. Data Level: 2

Tech. Data Source: RE

Tech. Data Pages: 1

Tech. Data: Schematic (pdf)

Notes:

To open case, remove two screws in battery compartment, release snap-tab at rear by pressing below seam.

- Unit Log -

Serial Number:	13343
Year of Manufacture:	1973 (IC stamped with 7332.)
Date of Receipt:	21 Apr 2001
Source:	Main & 12th second-hand store.
State upon Receipt:	Good physical condition. Fully functional, with manual.
Current State:	Functional but intermittent/unreliable (2020 Feb). Fully functional (24 Apr 2001).

Date:	24 Apr 2001
Procedure:	Cleaned.

Date:	2020 Feb
Symptoms:	No display.
Analysis:	No digit-scanning pulses from IC. Switcher noise on V+16 supply. Filter cap replaced, but still not operative. Eventually started working, but unreliable/flaky on e.g. M/D.

XONEX ELSI III / DATAEXAC
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