PRODUCT SERVICE
SCHEMATIC MANUAL
 

(c) Wang Laboratories, Inc., 1974


These directories contain a collection of Wang schematics, close to 500 pages in all.  They were all scanned at 600 dpi and came from 11"x17" pages.  However, the source material was itself an Nth generation copy of a photoreduction of the original C, D, or E sized drawings.  The quality of those copies varies widely, and as a result, the quality of the resulting scanned image varies widely.  Some pages are corrupted by fading, and some by smudging/blurring of small text.  Luckily, some boards are minor variations of some other board; by finding the twin schematic, missing information can often be recovered.

Obviously, all of this material used to be proprietary and confidential information of Wang Labs, although the schematics themselves don't seem to have any type of disclaimer.  At any rate, Wang no longer exists; it was acquired by Getronics in 1999, and Getronics doesn't appear to provide support for any of these ancient calculators and computers.  My intention is to try and preserve this information before it is entirely lost so that other interested hobbyists have the information they need to understand and repair these great old machines.  If the present-day copyright holder on this information objects to this distribution, I can only apologize and will desist from making any more copies of the documents.

In a few cases, a schematic appears in more than one section.  Here is a listing of those pages, including indication of which revision appears in which directory.
 

5977 model100 andmodel400 (same revision)
6293 model500 (rev3) and model1200 (rev 5)
6195 model500 andmodel1200 (same revision)
5936 model500 andmodel700 (same revision)
6175 model1200 (rev10) and perhipherals (rev 12)
7243 perhipheral (rev 3) and model2200addendum (rev 2)
6560 model 2200 (rev7) and model2200addendum (rev 8)
7291 model 2200 (rev8) and model2200addendum (rev 9)
7292 model 2200 (rev11) and model2200addendum (rev 13)
6548 model 2200 and model2200addendum (same revision)

Thanks to Max Blomme, former Wang engineer, for having saved all of this information so that dusty old Wang calculators and computers can have a hope of getting restored.

Documents scanned, PDF'd, and indexed by Jim Battle, June 2003.