Earl''s LCD''s....
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Posts: 46,084
Thanks to all for your help in figuring out these things.
I like the idea of using a 1khz clock to tickle the pins to see what
segments go live. As soon as they come in I'll give it a shot.
Maybe with a strong light I'll be able to see the runs and segments
in the LCD panel.
Thanks again,
Earl
--- In basicstamps@y..., Timothy Medema <timm@c...> wrote:
>
> Thanks for the information Tracy,
>
> Thanks also for your ongoing support of all of us on this
> list. You give so very much of your time and knowledge resources -
it's
> much appreciated. Where do you come up with the time to provide
all of
> this help? I seem to just keep up with the volume of list e-mail
much less
> the time for the depth of contribution that you provide on a
regular basis!
>
> Tim Medema
>
> At 09:16 AM 12/13/2001 -0800, you wrote:
> > >Thanks Earl,
> > >
> > >I've tried many search engines using various combinations of the
Part
> > >Number: I 3984-4211-222-01 as shown on the LCD box label on the
eBay item
> > >page, but to no avail. No pin-out or driver information yet. Do
know who
> > >the manufacturer of the LCD is? That would help greatly. Do any
portions
> > >of the part number look familiar to any of you professionals on
the list?
> > >
> > >Tim
> > >
> > >
> > >Timothy Medema
> > >CrystaLite, Inc.
> > >3307 Cedar St. (425) 745-6000 800-666-6065
> > >Everett, WA 98201 Fax: (425) 257-0232
> > >
> > >www.crystaliteinc.com
> > ><mailto:timm@c...>timm@c...
> >
> >Hi Tim,
> > My guess is that the part was produced on a custom contract,
and
> >the part number is for internal tracking. The fact that there were
> >182 in the lot, as stamped on an overseas shipping container
suggests
> >that it was a prototype that didn't work out. They didn't even
hold
> >back one of them from your purchase. Maybe the project it was to
be
> >a part of was scuttled. These small LCD panels are almost always
> >custom, and there is very little standard or "off-the-shelf"
> >available.
> >
> >Where does that leave you? Does the chip have anything that looks
> >like an ASIC, a blob of epoxy on the bottom or any chips? It
doesn't
> >look like it from the photo. If not, that may be better. It is a
> >raw screen. If it is a raw screen you can start by applying an AC
> >voltage to one pair of pins at a time, and see if any segments (or
> >icons!) light up. (say, 5 volts square wave from a stamp at about
> >1khz, through a 0.001uf capacitor).
> >
> >Good luck! It is a "black box" problem!
> >
> > -- regards,
> > Tracy Allen
> > electronically monitored ecosystems
> > mailto:tracy@e...
> > http://www.emesystems.com
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@y...
> >from the same email address that you subscribed. Text in the
Subject and
> >Body of the message will be ignored.
> >
> >
> >Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
I like the idea of using a 1khz clock to tickle the pins to see what
segments go live. As soon as they come in I'll give it a shot.
Maybe with a strong light I'll be able to see the runs and segments
in the LCD panel.
Thanks again,
Earl
--- In basicstamps@y..., Timothy Medema <timm@c...> wrote:
>
> Thanks for the information Tracy,
>
> Thanks also for your ongoing support of all of us on this
> list. You give so very much of your time and knowledge resources -
it's
> much appreciated. Where do you come up with the time to provide
all of
> this help? I seem to just keep up with the volume of list e-mail
much less
> the time for the depth of contribution that you provide on a
regular basis!
>
> Tim Medema
>
> At 09:16 AM 12/13/2001 -0800, you wrote:
> > >Thanks Earl,
> > >
> > >I've tried many search engines using various combinations of the
Part
> > >Number: I 3984-4211-222-01 as shown on the LCD box label on the
eBay item
> > >page, but to no avail. No pin-out or driver information yet. Do
know who
> > >the manufacturer of the LCD is? That would help greatly. Do any
portions
> > >of the part number look familiar to any of you professionals on
the list?
> > >
> > >Tim
> > >
> > >
> > >Timothy Medema
> > >CrystaLite, Inc.
> > >3307 Cedar St. (425) 745-6000 800-666-6065
> > >Everett, WA 98201 Fax: (425) 257-0232
> > >
> > >www.crystaliteinc.com
> > ><mailto:timm@c...>timm@c...
> >
> >Hi Tim,
> > My guess is that the part was produced on a custom contract,
and
> >the part number is for internal tracking. The fact that there were
> >182 in the lot, as stamped on an overseas shipping container
suggests
> >that it was a prototype that didn't work out. They didn't even
hold
> >back one of them from your purchase. Maybe the project it was to
be
> >a part of was scuttled. These small LCD panels are almost always
> >custom, and there is very little standard or "off-the-shelf"
> >available.
> >
> >Where does that leave you? Does the chip have anything that looks
> >like an ASIC, a blob of epoxy on the bottom or any chips? It
doesn't
> >look like it from the photo. If not, that may be better. It is a
> >raw screen. If it is a raw screen you can start by applying an AC
> >voltage to one pair of pins at a time, and see if any segments (or
> >icons!) light up. (say, 5 volts square wave from a stamp at about
> >1khz, through a 0.001uf capacitor).
> >
> >Good luck! It is a "black box" problem!
> >
> > -- regards,
> > Tracy Allen
> > electronically monitored ecosystems
> > mailto:tracy@e...
> > http://www.emesystems.com
> >
> >
> >To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@y...
> >from the same email address that you subscribed. Text in the
Subject and
> >Body of the message will be ignored.
> >
> >
> >Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/