DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-503SV
|Date of introduction:||2015||Display technology:||LCD|
|New price:||$5.00 (SRP 2017)||Display size:||8|
|Size:|| 4.8" x 3.1" x 0.65"
121 x 79 x 17 mm³
|Weight:||2.3 ounces, 65 grams||Serial No:|
|Batteries:||LR54 (30µA)||Date of manufacture:||mth 05 year 2017 (J)|
|AC-Adapter:||Origin of manufacture:||Philippines (L)|
|Program steps:||Courtesy of:||Joerg Woerner|
acquired both this TI-503SV and its sibling TI-1706SV when we realized that their
production was shifted from China to the Philippines and learned with other
calculators like the TI-108 about nice
improvements, e.g. larger numbers on the display.
Dismantling this TI-503SV manufactured in May 2017 by Kinpo Electronics in the Philippines revealed a small surprise. At first glance looks the internal construction identical to the TI-503SV manufactured in China but we noticed a small unsoldered jumper on the printed circuit board (PCB).
We expected this jumper to switch between the American decimal point and the German comma, but a second calculator acquired in Germany had the very same jumper unsoldered, too.
Fellow collectors - if you know the secret of this jumper J1 (AM OPEN / M SHORT) - let us know. We closed the jumper with one TI-503SV on purpose but couldn't find any differences in operation.
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© Joerg Woerner, December 28, 2017. No reprints without written permission.