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'Have you tried this LCD?'
2002\12\10@145735 by fred jones

picon face
Hi,
I bought 10 of these displays assuming that they worked like most other
standard LCDs.  I have projects and have used many styles and brands with no
problems but these don't seem to work.  The data sheet on their website
appears to be a newer model and is pretty lacking.  The company was no help
when I called them.

I thought I'd try the possibility of someone here trying one and getting it
to work.  Also, am willing to listen to your suggestions as they are getting
closer to the round file and I'd rather put them to use.
thanks for any help,
Fred

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2002\12\10@151822 by Wagner Lipnharski

flavicon
face
fred jones wrote:
> Hi,
> I bought 10 of these displays assuming that they worked like most
> other
> standard LCDs.  I have projects and have used many styles and brands
> with no
> problems but these don't seem to work.  The data sheet on their
> website
> appears to be a newer model and is pretty lacking.  The company was
> no help
> when I called them.
>
> I thought I'd try the possibility of someone here trying one and
> getting it
> to work.  Also, am willing to listen to your suggestions as they are
> getting
> closer to the round file and I'd rather put them to use.
> thanks for any help,
> Fred
>
>
www.halted.com/cgi-local/SoftCart.exe/cgi-local/smpagegen.exe?U+scst
ore+rfch4510ff938693+-p+-c+scstore.cfg+19400
>


Do you get at least all dots black when only applying VCC to pin #2 and
Ground to pins #1 and #3? (all other pins floatting).

By the documentation, it seems pretty normal LCD unit. I wonder if the
untis you bought are not extended temperature that will require some
negative voltage at pin #3, try to use a single AA battery - + to ground, -
to pin #3 via a 100 to 500 ohms resistor.

Wagner.

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2002\12\10@153619 by Augusto Yipmantin - OA4CVT

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face
Hi,

Tell me please the code of the driver chip in the back side of the LCD

Regards,

Augusto, OA4CVT

{Original Message removed}

2002\12\10@165349 by fred jones

picon face
Hi,
They are just 2 round black dots with no numbers on them.
Thanks,
Fred






{Quote hidden}

>{Original Message removed}

2002\12\12@133407 by Barry Gershenfeld

face picon face
>>Tell me please the code of the driver chip in the back side of the LCD
>>Regards,
>>Augusto, OA4CVT

>They are just 2 round black dots with no numbers on them.
>Fred

Okay, but you have to listen to the soapbox first.  I have worked
with several displays over the years and the manufacturers don't want
you to know which controller they are using.  Which is unfortunate
because when you try to get the programming information, they don't
really understand what you need.

Ah, but they often slip:  Look at the data sheet carefully and
you will usually find somewhere where they trip up.  One time it
was a timing spec and it offered a parameter for "1352" and
another for "1354" which were common Epson controllers.

So, look at the data sheet on the fifth page where it
says "customer acceptance standards" and they will
tell you which controller it "works like". KS0066 is
a Samsung controller.

It just so happens I am checking another out one of these folks'
fine displays (different type).  Not much on my datasheet, either.
On the block diagram there is a tiny little ground symbol attached
to the R/W line which does not have a pin, thus, "write-only display."
I'm using an 16F877 and CCS C, for what it's worth.  Wondering if
I'll have any code space left after I put the characters in (my
controller is graphic only.)

Barry WA2QMI

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