LCDInfo.com

Hi
Does someone is using or have specs for this lcd
It is a 640x200 graphical. I have running wave forms and frequencies of this lcd. It came from a old working vt220 terminal.

In searching of specs i have found thoses supposed equivalents

Hitachi lm236xb or LM674xn ???
Sharp LM64032w or LM64032m ???
Epson EG7005s-ar or EG7005-er ???
Samsung UG-64e_02snbr or UG-64e-02sebt

BUT i have not found any specs for the listed ....

I think the hardware from the equipment it's taken from might help or at least give hints how to use the lcd.

Well i have the terminal where the lcd came from, the sad thing is the lcd controller is a hard one to find specs too. And the terminal was fabricated in 1989 i think ??? Even Texas Instruments doesn't remember it ...

yepeeee i've finded thoses infos

hi
i am looking for a module for an old Dawn100 termonal
is it in good condition
if so i may be intertested in buying it from you

am also interested in the specs
vinodp

Hi
I have dismantled the terminal only to keep the lcd and the switching supply

sorry

I have the same LCD-module, and I am looking for specs. Can you please tell me where you found yours?

Regards,
Andreas Nilsson

hi, everybody
i have same kind of LCD with you. so please tell me where to get the data sheet on it. and some application notes are aprreciated.
happy christamas

I have a similar problem, I have an EPSON EG7005S-AS, require data sheet. Kindly let me know where you found them.

Regards
KSPatill

i have this display, i recovered it from an old vt-100 terminal made by texas instruments, the funny thing about it, they dont remember this model ??? CA and UL approved ??? .

it is a 640x200 dots with a 1/200 duty cycle

pins
1: FLM or (YD) frame signal
2: LP data latch signal
3: CP clock signal
4: M alternate signal for lcd drive

5: vadj contrast (-14 to -21v), -14v = nothing, -21v = all dark pixels
6: +5 volts
7: ground
8: VEE -21volts lcd drive supplys

9: XD0
10: XD1
11: XD2
12: XD3
13 to 18: not used
19 -20: optional backlight

the frequencies mesured in the vt-100 terminal where :
pin 1 = 77.63 hz (15.5265 / 200)
pin 2 = 15.5265 khz
pin 3 = 3.074 mhz
pin 4 = 38.82 hz (77.63 / 2)

im running this panel with a sed1335-32k from mpi web 2000
and two dc-32 converters from allelectronics. All wired to use a LPT port.
But the refresh rate is very low, if i push it faster the display comes garbled.

hope this help

Aside from the SED noise, how does it look? I think I might have one of these laying around, just havent had time to play with it yet.

i've played with it, it worked well in text mode, but it was so slooooooooow in refresh rates, the display couldn't clear the preceding characters or images fast enough, the following one just superposed themselves on top of the others, after a few sec's the display was full of junk .....

Have a look here:

http://forum.lcdinfo.com/viewtopic.php?t=2425

Its working well the the usb-controller.