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HELP !!! Wiring wg240128a-FFH-VZ
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Author:  CryoFast [ Wed Jun 30, 2004 23:20 ]
Post subject:  HELP !!! Wiring wg240128a-FFH-VZ
I'm wire what Henri said on his site in T6963-schematic, but I don'tsee anywhere on my lcd .... Anybody help !!!
My LCD had build-on negative invertor (-16V)
Author:  AmigaMentor [ Sat Jul 03, 2004 3:09 ]
Post subject:  Re: HELP !!! Wiring wg240128a-FFH-VZ
CryoFast wrote:
I'm wire what Henri said on his site in T6963-schematic, but I don'tsee anywhere on my lcd .... Anybody help !!!
My LCD had build-on negative invertor (-16V)


Is that your LCD ?

http://www.mostron.de/pdfs/pdfgraphic/WG240128A.PDF
Author:  Henri [ Mon Jul 05, 2004 11:22 ]
Post subject: 
So you got all dark display or nothing at all ?

Maybe if you presented all your connections here we could check if there was anything that might be wrong.
Author:  CryoFast [ Mon Jul 05, 2004 15:35 ]
Post subject: 
AmigaMentor
Yes it is !!!

Henri

Quote:
So you got all dark display or nothing at all ?


nothing at all :( :( :(

I'm check my connctions, but it don't wrong ....

LPT LCD
1 5(WR)
2 11(DB0)
3 12(DB1)
4 13(DB2)
5 14(DB3)
6 15(DB4)
7 16(DB5)
8 17(DB6)
9 18(DB7)
14 7(C\E)
16 8(C\D)
17 6(RD)

+5V 3(Vdd),19(FS),10(RESET)
GND 2(GND)
--------- 9(Vee)
|
---
10K <------4(Vo)
---
|
-------- GND
Author:  Henri [ Wed Jul 07, 2004 12:20 ]
Post subject: 
If you can't even adjust contrast you might not have enough contrast voltage. You could try connecting the other end of the contrast potentiometer to +5V instead of GND.

How about the REVERSE pin ? Try connecting it to +5V or GND.
Author:  CryoFast [ Thu Jul 08, 2004 11:51 ]
Post subject: 
Henri wrote:
If you can't even adjust contrast you might not have enough contrast voltage. You could try connecting the other end of the contrast potentiometer to +5V instead of GND.

How about the REVERSE pin ? Try connecting it to +5V or GND.


Now I can adjust contast !!! I'm connect 20pin(REVERSE) to +5V and it work !!! But I'm see garbage on my screen ( i mean my LCD connecting wrong ? )
maybe connect LCD like this :

LPT -> LCD
1-----7(C\E)
2-----11(DB0)
3-----12(DB1)
4-----13(DB2)
5-----14(DB3)
6-----15(DB4)
7-----16(DB5)
8-----17(DB6)
9-----18(DB7)
14-----6(RD)
16-----5(WR)
17-----8(C\D)

+5V------3(Vdd),10(RESET),19(FS),20(REVERSE)
GND-----2(GND),1(FG)
Author:  CryoFast [ Fri Jul 09, 2004 13:33 ]
Post subject: 
Henri

I do it !!!! All works !!!!
I'm check my connections and find bad contact between LCD - LPT !!!

P.S. I can post you my shematic to wire my LCD ( and photo too ).
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