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Texas Instruments TI-30Xa Solar H.E.K.A.

Date of introduction:  1997 Display technology:  LCD
New price:   Display size:  10 + 2
Size:  5.9" x 3.0" x 0.50"
 150 x 75 x 13 mm3
   
Weight:  2.9 ounces, 82 grams Serial No:  
Batteries:  n.a. Date of manufacture:  mth 07 year 1998 (A)
AC-Adapter:   Origin of manufacture:  China (N)
Precision:  12 Integrated circuits:  Toshiba T6M79
Memories:  3    
Program steps:   Courtesy of:  Joerg Woerner

TI-30Xa_Solar_HK_P1.jpg (261484 Byte)The Hong Kong Examinations and Assessment Authority (HKEAA), previously known as Hong Kong Examinations Authority (HKEA) administers the Hong Kong Certificate of Education Examination (HKCEE) and Hong Kong Advanced Level Examination (HKALE).

This Texas Instruments TI-30Xa Solar with the "H.K.E.A. APPROVED" pad-printed label is one of the permitted calculators in the exams. Don't miss the TI-30 Xa Solar School Edition with the disabled decimal-to-fraction key.

TI-30Xa_Solar_HK_PCB.jpg (434922 Byte)TI-30Xa_Solar_HK_BACK.jpg (383752 Byte)Dismantling this TI-30Xa Solar manufactured in July 1998 by contract manufacturer Nam Tai Electronics, Inc. in China is not really exciting - the calculator is 100% identical with the US model. 

Interesting to know that this TI-30Xa Solar approved in 1997 still carries an algorithm problem known from the TI-35X introduced in 1991. Read more about the Logarithm Bug and its side effect on the related yx function present in this calculator.

 

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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, November 16, 2009. No reprints without written permission.