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PostPosted: Sun Nov 30, 2003 20:24 
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Joined: Mon Feb 24, 2003 0:10
Posts: 3
Location: Germany-Dresden
i search a wiringplan for this display, how i have to connect it to the lpt !!
maybe someone can help me, here is the data-sheet from the lcd:
http://www.sudankaefer.net/lm283xb.pdf

and here the datasheet of the controller:
http://www.sudankaefer.net/HD61830.pdf

thx4help !!

knomic


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PostPosted: Sun Nov 30, 2003 22:14 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
This should work for LM238XB:
Image

I have also been asked how to connect LM213XB which is a 256x64 pixel model with HD61830. I noticed it has same pinout with similar negative voltage requirements so the same wiring can be used for LM213XB also.


Last edited by Henri on Wed Nov 03, 2004 15:43, edited 1 time in total.

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PostPosted: Mon Feb 16, 2004 11:29 
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Joined: Mon Feb 24, 2003 0:10
Posts: 3
Location: Germany-Dresden
where i get the -13,5V from ? how can i transform 12V to 13.5V or can i use 12V instead of 13.5V too ? thx for help !!

knomic


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PostPosted: Mon Feb 16, 2004 21:21 
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Joined: Mon Jan 26, 2004 3:52
Posts: 10
You're going to need a negative voltage generator. It looks like you can't use the -12v lead from your power supply, as the datasheet says Vee needs to be between -13.25v and -13.75v in reference to ground.

Not sure where you can get a negative voltage generator (might also be called a DC-DC converter) in Germany, but I'm sure someone else here who lives in Europe knows where to get one.


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PostPosted: Fri Feb 20, 2004 20:00 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
I know some german electronics shop with a website sells DC-DC converters (up to -24v if I remember correctly) as I've seen it but I can't remember which one it was.

Maybe if you post some links here I might remember which one it was ?


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PostPosted: Sat Feb 21, 2004 12:36 
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Joined: Mon Feb 24, 2003 0:10
Posts: 3
Location: Germany-Dresden
i only know
www.conrad.de
www.reichelt.de
www.pollin.de !!

i found a tutorial to build up a step-up-controller an then i can include a voltage-inverter !! maybe i can find a better solution, because thsi one is a little bit to big !!

knomic


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PostPosted: Sun Feb 22, 2004 23:38 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
www.reichelt.de looked familiar. I think it might have been there where I saw the DC/DC converters.


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