Vintage teardown- Weston 6000

[reagle]

More of a "first look and take pictures" rather than a full teardown and analysis, but it's pretty non-the-less:
http://kuzyatech.com/vintage-multimeter-weston-6000
If anybody has access to schematics, Weston-to-Normal parts mappings or the LCD glass- please let me know!

[reagle]

Just updated with a scan of the user manual.

[Vgkid]

Did you ever figure out what the Weston marked ic's were?

[SeanB]

Easy enough to work out a rough mapping for the LCD by simply tracing the ITO traces on the top of the glass  and tracing to the edge. It likely is a standard pinout, 28 pins says it likely is a standard 1888 display with a DP per segment and a single backplane. TRy looking online for 1888 LCD displays with a single side connection, it is likely to be a similar pinout as the ITO can not handle any other layout easily.

[reagle]

Yep, working on that- it's a pretty standard pinout

Easy enough to work out a rough mapping for the LCD by simply tracing the ITO traces on the top of the glass  and tracing to the edge. It likely is a standard pinout, 28 pins says it likely is a standard 1888 display with a DP per segment and a single backplane. TRy looking online for 1888 LCD displays with a single side connection, it is likely to be a similar pinout as the ITO can not handle any other layout easily.

[reagle]

Not yet. They do site a patent describing how they do ADC conversions, so the chips could could potentially be custom. The display driver I initially though was the standard meter chip, but it's definitely not.

Did you ever figure out what the Weston marked ic's were?