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 Post subject: Seiko G1216
PostPosted: Tue Feb 11, 2003 21:17 
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Joined: Tue Feb 04, 2003 15:54
Posts: 6
Location: Tampere
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..

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There are only 10 types of people in the world: Those who understand binary, and those who don't


Last edited by Bera on Wed Feb 12, 2003 11:13, edited 1 time in total.

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 Post subject:
PostPosted: Tue Feb 11, 2003 22:16 
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 !


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 Post subject:
PostPosted: Tue Feb 11, 2003 22:27 
Image


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 Post subject: Hmm.
PostPosted: Tue Feb 11, 2003 23:00 
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Joined: Tue Feb 04, 2003 15:54
Posts: 6
Location: Tampere
I dont have RS line. Pin 16 says D/I. Same?

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There are only 10 types of people in the world: Those who understand binary, and those who don't


Last edited by Bera on Wed Feb 12, 2003 11:13, edited 1 time in total.

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 Post subject: Still not workin.
PostPosted: Tue Feb 11, 2003 23:39 
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Joined: Tue Feb 04, 2003 15:54
Posts: 6
Location: Tampere
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.

_________________
There are only 10 types of people in the world: Those who understand binary, and those who don't


Last edited by Bera on Wed Feb 12, 2003 11:14, edited 1 time in total.

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 Post subject:
PostPosted: Wed Feb 12, 2003 0:14 
The pull-up is maybe the only solution i think because for me it's work fine !!

Maybe somes pics tomorow !!!

bye !


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 Post subject: Ähh..
PostPosted: Wed Feb 12, 2003 17:58 
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Joined: Tue Feb 04, 2003 15:54
Posts: 6
Location: Tampere
Are you sure that D/I and RS are same?
What configurations you have in LCDInfo?

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There are only 10 types of people in the world: Those who understand binary, and those who don't


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 Post subject:
PostPosted: Wed Feb 12, 2003 23:53 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
D/I and RS are the same thing.

D/I = DATA/INSTRUCTION

RS = REGISTER SELECT (data/instruction)


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