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Seiko G1216
http://forum.lcdinfo.com/viewtopic.php?f=6&t=138		 Page 1 of 1
Author:  Bera [ Tue Feb 11, 2003 21:17 ]
Post subject:  Seiko G1216
Hi. I bought my first LCD display and I have wiring problem...

Display full code is G1216B1N000. And it haves one HD61203TE and two HD61202TE controllers. Documents here: http://www.seiko-usa-ecd.com/lcd/products/graphic_mods/g1216b1n000.html

All i get is black screen and lights on.

Is it possible that screen is black becose I have -12v VLC? Specification says that -8 is normal but it also says that min.VLC = VDD-19V. VDD is 5V. So down to -14V supose to be acceptable. Or is it?

Pins are:
1 VDD
2 VSS
3 VLC
4 DB0
5 DB1
6 DB2
7 DB3
8 DB4
9 DB5
10 DB6
11 DB7
12 CS1
13 CS2
14 RST
15 R/W
16 D/I
17 E
18 FGND
19 LEDA
20 LEDB

How I connect those 12,13,15,16 pins correctly..
Author:  Dudu [ Tue Feb 11, 2003 22:16 ]
Post subject: 
Invert CS1 and 2
for VDD = 5+
And for the contrast you must habe between 6 and 8V variable !! i'll post a draw ive made yesterday !
Author:  Dudu [ Tue Feb 11, 2003 22:27 ]
Post subject: 
Image
Author:  Bera [ Tue Feb 11, 2003 23:00 ]
Post subject:  Hmm.
I dont have RS line. Pin 16 says D/I. Same?
Author:  Bera [ Tue Feb 11, 2003 23:39 ]
Post subject:  Still not workin.
Now I have made modifications and still it wont work. I dont have a pull up resistors. Maybe I buy some tomorrow. And I also have connected reset line directly to the +5V.

So.. Contrast potentiometer works fine but nothing else changed.
Author:  Dudu [ Wed Feb 12, 2003 0:14 ]
Post subject: 
The pull-up is maybe the only solution i think because for me it's work fine !!

Maybe somes pics tomorow !!!

bye !
Author:  Bera [ Wed Feb 12, 2003 17:58 ]
Post subject:  Ähh..
Are you sure that D/I and RS are same?
What configurations you have in LCDInfo?
Author:  Henri [ Wed Feb 12, 2003 23:53 ]
Post subject: 
D/I and RS are the same thing.

D/I = DATA/INSTRUCTION

RS = REGISTER SELECT (data/instruction)
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