DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI ViewScreen 82 (1999)
| Date of introduction: | 1999 | Display technology: | LCD dot matrix |
| New price: | $250.00 (SRP 2008) | Display size: | 8 * 16 characters |
| Size: | 10.4" x 9.7" x
1.5" 263 x 247 x 38 mm3 |
||
| Weight: | 29.3 ounces, 830 grams | Serial No: | 1980000520 |
| Batteries: | (4*AAA from Calculator) | Date of manufacture: | mth 02 year 2004 (D) |
| AC-Adapter: | AC9201, AC9201E | Origin of manufacture: | China (I) |
| Precision: | Integrated circuits: | Toshiba T6A04A | |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner |
The
TI ViewScreen panel connects with a cable to the Texas Instruments Graphing
calculators. Placing
the panel on the overhead projector enlarges the image of the handheld screen so
that each student can follow along. Don't miss the US Patent Application U.S. Pat. No. 5,168,294 with the title “Display demonstration system for providing enlarged projected image of calculator display”
filed already in September 27, 1991.
The TI ViewScreen 82 was introduced in 1993 and
connects to the TI-82 VSC (ViewScreen Calculator). It
was delivered either as the ViewScreen panel package with the power supply and a
carrying case or as part of the ViewScreen system including the Graphing
calculator.
In 2008 four different ViewScreen panels were available for TI's Graphing calculators:
| • Panel 1:
TI-73 VSC, TI-73 Explorer VSC,
TI-80
VSC,
TI-82 VSC, TI-83 VSC, TI-83 Plus VSC, TI-83 Plus Silver Edition VSC, TI-84 Plus VSC, TI-84 Plus Silver Edition VSC • Panel 2: TI-89 VSC, TI-89 Titanium VSC, TI-92, TI-92 Plus, Voyage 200 • Panel 3: TI-85 VSC (2nd design), TI-86 VSC • Panel 4: TI-Nspire, TI-Nspire CAS, TI-Nspire Touchpad, TI-Nspire CAS Touchpad |
Based on the manufacturing year of the TI-82 View Screen
Panel, you'll notice different markings on the front and compatible calculators
listed on the Product Label on the backside of the device:
| •
1993-1994: TI ViewScreen Product Label: None • 1994-1995: TI ViewScreen Product Label: TI-81, TI-82 • 1995-1997: TI ViewScreen Product Label: TI-80, TI-81, TI-82 • 1996-1999: TI ViewScreen 80, 81, 82, 83 Product Label: TI-80, TI-81, TI-82, TI-83 • 1999-2004: TI ViewScreen 73, 80, 81, 82, 83Plus Product Label: TI-73, TI-80, TI-81, TI-82, TI-83, TI-83 Plus • 2004-2008: TI ViewScreen 73, 80, 81, 82, 83, 83Plus, 84Plus Product Label: TI-73, TI-80, TI-81, TI-82, TI-83, TI-83 Plus, TI-84 Plus |
Dismantling this TI ViewScreen 82 with
Date code I-0204D manufactured in February 2004 by
Inventec Corporation in Taiwan
reveals no surprises and looks almost identical to the first design introduced
in 1993. A large, transmissive LCD panel is connected to a Toshiba
T6A04A display driver known already
from the TI-82 Parcus introduced in 1999. The reminder
of the electronics resembles the receivers of the signals from the connected
ViewScreen Calculator, contrast adjustment of the screen and power supply for the
electronics.
The Toshiba T6A04A combines 120 column drivers and 64 row drivers and the
display RAM with a capacity of 120 x 64 bits in a tiny tape carrier package
(TCP) and connects directly to an 8-bit Interface.
The Presentation Link Adapter connects
the student versions of the TI-84 Plus family to the ViewScreen
panel using the calculator's USB port.
With the phase out of the overhead projectors from the daily life, Texas Instruments developed with the TI-Presenter a perfect replacement for the ViewScreen panels based on modern video technology.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, August 27, 2020. No reprints without written permission.