Texas Instruments TI-Collège Plus Solaire (DVT)

Date of introduction:  December 17, 2012
 Available: Feb. 21, 2013
Display technology:  LCD dot matrix
New price:   Display size:  4 * 16 characters
 (5 * 19 for menus)
Size:  6.5" x 3.1" x 0.6"
 166 x 79 x 16 mm³
Weight:  3.7 ounces, 104 grams Serial No:  K-DVT-239
Batteries:  Solar cells + CR2032 Date of manufacture:  year 2012
AC-Adapter:   Origin of manufacture:  China (K)
Precision:  13 Integrated circuits:  
Memories:  7    
Program steps:   Courtesy of:  Joerg Woerner

Texas Instruments replaced in France the original TI-Collège Plus in 2013 with this TI-Collège Plus Solaire sporting the design of the TI-34 MultiView introduced already in 2008.

The TI-Collège Plus Solaire features a dot matrix display with 31 * 96 addressable pixels allowing the calculator to display equations as they would be printed in a text book. 

The TI-Collège Plus is the first calculator in the new MultiView series sporting for the "mode menue" a total of 5 lines by 19 characters on the small graphing screen. Both the TI-30XS MultiView and the TI-34 MultiView used just 4 lines.

In addition to this so called "AFFNATUREL / MathPrint" mode the calculator sports a TI-Collège compatible "AFFLIGNE / Classic" mode.

Compared with the original TI-Collège, we notice some major improvements:

AFFLIGNE (compatible with TI-Collège) and AFFNATUREL Mode 
EOS with 8 pending operations and 23 levels of parentheses
7 memory variables x, y, z, t, a, b, c
Data editor and list formulas:  3 lists, each up to 42 items
Function table
Toggle key fractions and decimals
Equation entries up to 80 digits

Dismantling this TI-Collège Plus Solaire with the serial number K-DVT-239 (K for Kinpo electronics, Inc. and DVT for Design Validation Test) reveals a pretty common construction with two printed circuit boards (PCB's). The main PCB hides the single-chip calculating circuit under a small protection blob of black epoxy and drives the graphing display with a heat sealed fine-pitch connector. The keyboard makes use of a much simpler second PCB and a heat sealed connector, too.

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© Joerg Woerner, January 19, 2013. No reprints without written permission.