Canon Checkbook III

Date of introduction:   Display technology:  LCD
New price:   Display size:  8
Size:  2.8" x 6.0" x 0.35"
 70 x 152 x 8 mm3
Weight:  2.2 ounces, 63 grams Serial No:  
Batteries:  LR54 Date of manufacture:  
AC-Adapter:   Origin of manufacture:  Thailand
Precision:  8  Integrated circuits:  Toshiba T7752S
Memories:  3    
Program steps:   Courtesy of:  Joerg Woerner

The Canon Checkbook III "Money Manager" continued the idea of an Account Manager introduced already in 1982 with the Checkbook and the beautiful Checkbook II.

It is very similar to the Texas Instruments TI-2200+.

Dismantling this Checkbook calculator manufactured in Thailand reveals a very solid construction centered around a Toshiba T7752S single-chip calculator circuit.

Inspecting the PCB of this Checkbook III manufactured in Thailand brought our attention to a small mark reading CB-10, most likely a reference to Type CheckBook and Revision 1.0 of the design (schematics and layout).

Please find an overview of the PCB-Marks we discovered so far on Account Manager calculators.

Learn more about single-chip calculator circuits used in Account Manager Calculators.

In 2003 this Checkbook III was still available in some stores in the United States together with the ultimate Checkbook Recorder.

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If you have additions to the above article please email:

Joerg Woerner, December 5, 2001. No reprints without written permission.