If at all possible, post some good pics of front and back....a picture says a thousand words
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| powering up graphical LCD http://forum.lcdinfo.com/viewtopic.php?f=6&t=1279 |
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| Author: | wyoclimber9 [ Thu Jul 28, 2005 23:36 ] |
| Post subject: | powering up graphical LCD |
Alright so i guess my first post wasn't the best seeing that no one could help me out so i will try and get a little more details and tell you what i have tried. I have a graphical LCD made for a car video set up i am trying to use if for a diffrent application but can seem to figure out how to get graphics to show up on the screen. When 12 volts is applied via ac-dc converter the screen goes all white. after reading a little info i thought maybe it was just a contrast issue. cut down the voltage going to the unit to 6V and 9V the screen just flickered still only showing up as white. is there anything i should or could do diffrently to attemp to get the project up and running? Is a all white LCD mean that the screen is bad and i should just toss it? thanks for the help in advance WYO |
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| Author: | KrAkKeN [ Fri Jul 29, 2005 5:38 ] |
| Post subject: | |
If you used a 12v connection to power it there is a chance you have blown it because most work on 5v. Judging by the fact that you get a flicker though looks like you might be in luck. Check your wiring, I expect that would be the problem. Check every connection and combination against the schematics you used. Also, if you post your model, graphics chip and schematic you used to wire it up here people should be able to help you out more. |
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| Author: | wyoclimber9 [ Fri Jul 29, 2005 8:21 ] |
| Post subject: | the info i have on my lcd |
This is horrible but There are what looks like 2 mian IC's on the back of the panel Sharp IR3Y29A AND Toshiba 200G02F0002 9939FA1 The schematics i have used are that from the guess and check school. All i have figured out is that there is a power and a ground. other then that the preset pins on the board (there are three) have the following Section 1 13 Pins which include the power and ground Section 2 14 pins no idea what they are for Section 3 9 pins again no idea theres a "KA" "6.1" on the actual board looking from the front. I recived these screens from a friend telling me i was the only person he knew to get them working(go figure) Hopefully that gives a little more insight as to what i am dealing with.. THANKS AGAIN Matt |
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| Author: | One~Zero [ Sat Jul 30, 2005 2:47 ] |
| Post subject: | |
If at all possible, post some good pics of front and back....a picture says a thousand words
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| Author: | wyoclimber9 [ Sun Jul 31, 2005 17:47 ] |
| Post subject: | |
Here are some Pics?! 
Let me know if you can help Thanks Matt |
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