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optrex dmf5001n wiring and other questions
http://forum.lcdinfo.com/viewtopic.php?f=6&t=105		 Page 1 of 2
Author:  wowbagger [ Fri Jan 24, 2003 20:25 ]
Post subject:  optrex dmf5001n wiring and other questions
hi

i bought a optrex dmf5001ny-ly. now i need a schematik how to connect it to the lpt. i also want to know how i have to connect it to the power supply.
here are some datasheets

http://www.optrex.com/SiteImages/PartLi ... 001aie.pdf
http://www.optrex.com/SiteImages/PartLi ... _34487.pdf

next question: with which software can i use this lcd. i want not only to playing litte animations an showing pictures on the lcd but also i want to use it in the lettermode to show informations about mp3s, my system ect...

can somebody help me?
Author:  Henri [ Fri Jan 24, 2003 22:32 ]
Post subject: 
I'll have a look at this.
Author:  wowbagger [ Fri Jan 24, 2003 23:03 ]
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may you draw me a schematik?
Author:  Henri [ Sat Jan 25, 2003 22:39 ]
Post subject: 
I suppose I can draw a schematic for that. I downloaded the datasheet but wasn't able to view it as acrobat reader complained about some missing japanese language support. I'll see what I can do for that.
Author:  wowbagger [ Sun Jan 26, 2003 0:18 ]
Post subject: 
i just could open the lower one. do you need the upper?
Author:  Henri [ Sun Jan 26, 2003 20:43 ]
Post subject: 
The pinout in the lower one is enough to draw the schematic but I can't say anything about the backlight. Also there might be some interesting information in the datasheet.
Author:  wowbagger [ Mon Jan 27, 2003 0:11 ]
Post subject: 
i foundet out, that the backlight works with +5V. so this is no problem. i think that the backlight and the lcd need only 5V.
Author:  Henri [ Tue Jan 28, 2003 17:09 ]
Post subject: 
EDIT: Information below is wrong. Check following posts for explanation.
______



Now that I looked at the datasheet more carefully I noticed that the pinout is same as for the earlier display:
Image

I didn't notice anything mentioned about the FS and MD pins.

I also have a paper copy of the specs so here are the backlight specifications:

Voltage: 4.1v (typ) 3.7v (min) 4.4v (max)
Current: 650mA

So you need some resistor for the backlight as 5v is too much. Calculating with those values I got 1.5 ohm for the resistor but I'd recommend trying with about 3 ohm at first and then smaller value if that's not bright enough (or larger value if the backlight becomes too hot).
Author:  wowbagger [ Tue Jan 28, 2003 17:22 ]
Post subject: 
thank you!

another question: which pin at the lpt is pin 1?
Author:  Götz [ Tue Jan 28, 2003 17:57 ]
Post subject: 
Henri wrote:
Now that I looked at the datasheet more carefully I noticed that the pinout is same as for the earlier display:

Vcc-Vee is in range of 23..26 V so you need a negative voltage for LCD drive of -18,5..-20,5 V. At page 9 is Example of Power Supply.
Götz
Author:  Henri [ Tue Jan 28, 2003 21:28 ]
Post subject: 
Götz wrote:
Vcc-Vee is in range of 23..26 V so you need a negative voltage for LCD drive of -18,5..-20,5 V. At page 9 is Example of Power Supply.
Götz

I looked at the datasheet again and I think you are right. I mistakenly thought that the display had the negative voltage converter circuit onboard.

So now it looks like some negative voltage source is needed to get this display working. Here was some circuits: http://www.skippari.net/phpBB2/viewtopic.php?t=63

wowbagger wrote:
another question: which pin at the lpt is pin 1?

http://www.skippari.net/lcd/t6963c_schem.html

In the schematic picture is the lpt connector that plugs to the computer.
Author:  wowbagger [ Tue Jan 28, 2003 21:43 ]
Post subject: 
and where i have to connect the -20v?
Author:  Henri [ Wed Jan 29, 2003 16:41 ]
Post subject: 
wowbagger wrote:
and where i have to connect the -20v?

If I read the datasheet right that would be to the VEE pin so that the VADJ pin gets the voltage also through the potentiometer.

So just like in the schematic, just connect the -20v source to the VEE pin.
Author:  wowbagger [ Wed Mar 05, 2003 16:24 ]
Post subject: 
does it works if i connect +12V with a poti to vee and vad-j [pin5] and -12v to vcc [pin3] ???

ADMIN EDIT:
For some reason this topic doesn't show the page 2 so I'll lock this one continue in new topic:
http://www.skippari.net/phpBB2/viewtopic.php?t=174
Author:  wowbagger [ Wed Mar 05, 2003 16:24 ]
Post subject: 
sorry for 2 posts!
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