DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1706+
| Date of introduction: | 1996 | Display technology: | LCD |
| New price: | Display size: | 8 | |
| Size: | 4.9" x 2.7" x
0.35" 125 x 68 x 9 mm3 |
||
| Weight: | 1.7 ounces, 48 grams | Serial No: | |
| Batteries: | n.a. | Date of manufacture: | mth 06 year 1996 |
| AC-Adapter: | Origin of manufacture: | China (N) | |
| Precision: | 8 | Integrated circuits: | |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
TI-1706+ got again a rounder shape and different keys compared to the earlier TI-1706+
introduced three years earlier. This design theme was
introduced with the TI-503+.
Dismantling this TI-1706+ manufactured in June 1996 by
Nam
Tai Electronics, Inc. in China reveals a clean design centered around an
unknown single-chip calculator circuit bonded in Chip-on-Board (COB) technology
directly onto a double-sided printed circuit board (PCB) and powered by four
small solar cells.
Inspecting
the PCB of this TI-1706+ calculator brought our attention to three small marks reading
TI-1706NP, JV302 and YK3552-2 confirming its split from the
TI-106.
With an early Prototype of the TI-1706+ reading YK3552-1 do we assume that this calculator is in Revision
2 of its design (Schematics and PCB). We started compiling a list of the
PCB-Marks on calculators
manufactured by OEMs for Texas Instruments.
A similar housing with a tiltable display was used with the TI-1766+.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, July 3, 2002. No reprints without written permission.