DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-EC7 Pro
|Date of introduction:||July 2007||Display technology:||LCD|
|New price:||€17.59||Display size:||12 characters and 12|
|Size:||6.5" x 4.5" x 1.1"|
|Weight:||5.4 ounces||Serial No:|
|Batteries:||CR2032||Date of manufacture:||mth 02 year 2007|
|AC-Adapter:||Origin of manufacture:||China (N)|
|Program steps:||Courtesy of:||Joerg Woerner|
The TI-EC7 Pro+ replaced in 2007 the TI-EC7 Pro introduced only one year earlier.
At first glance the only changes are a new up-to-date design but Texas Instruments addressed the owners of the original TI-EC7 Pro with an important product update:
|EC7 Pro Product Update
We have recently become aware of a computational issue with the EC-7 calculator. This does not affect the EC-3 or EC-5 models, or any of TI’s other calculators. When inputting figures less than 1.0 on the EC-7, you must input a zero before the decimal. Otherwise the answer will be incorrect. For example, in the EC-7 100 – .5-.5 = 100; 100- 0.5-0.5 = 99.
For more information, please contact our customer service center at:
800 Pavilion Drive,
Northampton, NN4 7YL
Telephone: 020 8230 3184
(© 2007: http://education.ti.com/educationportal/sites/UK/nonProductSingle/ec7pro_update.html)
the TI-EC7 Pro+ reveals a
printed circuit board (PCB) 100% identical with the TI-EC7 Pro and we assume
that the fault was corrected by a software update of the single-chip calculator
circuit hidden under the small black epoxy-resin blob.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, August 12, 2007. No reprints without written permission.