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Thread: WOOHOO! UPDATE- It's working! -- HELP! Ugly picture - sharp LQ9D161 and Allens Cont

  1. #11
    Maximum Bitrate Meatballman's Avatar
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    My inverter outputs 600Vrms at 5mA. It is a TDK CXA-L0512-NJL. Seems to be a pretty commonly used inverter.

  2. #12
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    Hi Everyone,
    Sorry I haven't responded lately. The family (myself included) all had the flu for the last week. It's been pretty bad. There's been very interesting discussion here and I appreciate it.

    Toto3,
    Lowering the volatage may help. Please let me know if it works.

    I agre with Plaiming2 though, we should keep the lsbs connected and not try things like ro to r2, etc.

    Finally, don't worry about your english. It is actually quite good.

    Plaiming,
    I tried 256 colors and it didn't help.

    Mp3Z24,
    I'm using the backlight that Allen sold me with the controller. It seems to work almost OK on an LQ10D367. I still get funny red shading on that one. All other colors look great. Even in DVD (except for red shading of course)

    This weekend I'll do more work on it and report the results. I've been busy at work and haven't had time lately.

    But I gotta admit, I've spent quite a bit of time and money on LCDs and controllers lately and am starting to wonder if it was worth it to get VGA versus composite. I could have been miles ahead in this project by buying a composite video screen from ebay. Oh well live and learn.

    Don't let me give up guys! The payoff could be awesome if these 8.4" LCDs look good in my car!

    Thanks Again,
    Pigseye

    [ 02-14-2002: Message edited by: pigseye ]

  3. #13
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    hmm.. wouldn't one want to try and connect most significant bits rather than the lower significant bits? The reason I say this is because suppose the color is color 110000 in binary (48).. if you connect the 4 least significant bits you would connect the pins that are 0000, therefore showing 0 when the color should be 48.. Is this right? It makes sense but I dunno.. theres really no harm such as frying your LCD or controller so doesnt hurt trying (unless you permanently soldered all the junk already)

    Jason

  4. #14
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    pigseye: did you get your screen from "DenenisK" from ebay caus i won an auction from him, paypaled him and since payin him havent heard anything for a week now, hes got a high ebay rating though, but still a bit worried.

  5. #15
    Maximum Bitrate Meatballman's Avatar
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    PaulzY - I got mine from him. He's not the best communicator and he's kinda slow, but you'll get your screen. I think it ended up taking like 2 and a half weeks for me, but that was during the 9/11 thing and the airports were shutdown and all that jazz.

  6. #16
    FLAC mp3z24's Avatar
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    paulyz...
    i have the same screen on order from DennisK and i have been in contact with him several times since my auction ended approximately 2 weeks ago. it seems that he had a backorder problem with the hirose cables and was unable to ship out the screens in a timely manner. he has repeatedly reassured me that the cables are on the way and the entire kit will be shipped out soon. i know it really sucks waiting around for a new toy, im in the same boat as you. but, he seems to be a good seller and others on the board have recived things from him. i wouldnt worry about it unless you dont get anything for a month or so. you coule email him, and ask the status of your purchase, you have every right to ask, but dont be rude about it!! if you do email him, make sure to include the auction number!!!

    still waiting..
    ~mike
    Single Member of the "1000 Post and No MP3 Car" Club
    PROJECT ON INDEFINATE HOLD... BOUGHT A HOUSE
    2000 Cavalier Z24 [###-------] Only 30% Done ... Still

  7. #17
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    ive emailed him a few times politely, asking if he had recieved payment, or if he has sent it, but no response, (included item #) so ill guess il wait bit more. i dont mind if it takes a while just wish he would reply.

    also he said it comes with a inverter so hopefully i wont run into these troubles, and i hope you yours workin pigseye, as Meatballman's looks good. (lol @ referring to these nicknames.)

    [ 02-15-2002: Message edited by: PaulzY ]

  8. #18
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    Hi Paulzy,
    Yeah I called him on the phone to get clarification on another question and he filled me in on the status. He seems like a good guy.

    At the time he had a real bad cold and fell behind in all his shipments. He said he couldn't even get caught up. To me that means you should stop placing auctions until you are caught up, but hey, that's me.

    He also told me that if you ordered a controller card it would at least 2 weeks longer than normal because he was getting the card from another state and had to get everything bundled together.

    My LCD order was w/o a controller card so I got it in a couple weeks.

    Chances are he just got swamped with orders and never got caught up. Again, He sure seemd like a straight shooter and a good guy, Just a little over committed.

    If you don't hear from him in a couple of weeks I'd call him up.

    Now about the LCD and Allen's controller combo, it's still not working. I'm not sure what to do now. I'm going to take a look at the 5v verus 3.3v output thing to see if that makes a difference. Kind of makes sense though since if the picture is fading in the movie (like fade to black) It looks great for a second before going black.

    I'll keep plugging away and get back to you guys.

    Thanks,
    Pigseye

  9. #19
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    Infrared,

    re:
    "hmm.. wouldn't one want to try and connect most significant bits rather than the lower significant bits? The reason I say this is because suppose the color is color 110000 in binary (48).. if you connect the 4 least significant bits you would connect the pins that are 0000, therefore showing 0 when the color should be 48.. Is this right? It makes sense but I dunno.. theres really no harm such as frying your LCD or controller so doesnt hurt trying (unless you permanently soldered all the junk already):

    I don't know much about LCDs so I'm here to learn It makes sense to me but since I don't uderstand I believe whatever people tell me.

    Can any one comment on Infrared's suggesetion? What he's saying is connect

    r0 to r2
    r1 to r3
    r2 to r4
    r3 to r5...

    Thanks,
    Pigseye

  10. #20
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    First of all Meatballman! . if you are reading this, we need your help..

    reporting back: (i believe i have find some thing that we should look into !! )
    droping the voltage down with a resistor does not work !! .. (with 400k ohm at 3.6v lcd act like no power is applied) But this doesn't mean the color prob.. has not thing to do with the 5v and 3.3. check out:http://www.cellcomputing.com/eoled_p...ardpc-eol.html go down the page read *2 (I don't know what this is, i am no EE type but I E-mail the company about the schematic. cos the link to it is dead!!) (I guess the reason voltage drop with a resistor don't work is the same reason this 5V to 3.3V level shifter is needed, what ever it is.. hehe) also *4 might be something to be look into..?? (I think is for higher bit LCD connecting to "low" bit tft borad so........ )

    some thing more to look into. !! I believe allen's controller can "do" the 3.3v for our LCD. There is a 8 pin SM chip "1120" by Texas Instruments,(marking on chip "1120 8at ayre") i believe this chip "process" the 5v for the LCD to use.(why is this needed i don't know) I think i find pdf for this chip. I might be wrong. From the "1120" pdf here http://www-s.ti.com/sc/ds/tps1120.pdf from my sucky English i believe it can process 3v and 5v, so there for if we drop the voltage before the "1120" to 3.3v .. IT will be all good !!!! ?? .. ( if that is the case we would have to look at R55 and R56 ) please !! any pro or EE majors help us out here !!!

    hehhee..... I have just think of an other way for us the see if the VCC voltage for LCD is our prob... hehe..hhehee.. Calling Meatballman !!!! .. i holp you are reading !! Sice you have a setup with 3.3v or 5v select able. It will be alot of help if you can select 5v and power it up, to see if the color is UGLY!!! .. if yes !! well this is our prob !! . Simple!! Can't believe i didn't think of this earlier. Meatballman .. since we know 5v won't kill the lcd can you please try this and let us know ?? .. it will help us alot .. ! .. if it damaged the LCD in any way, i will replace your LCD .. I got a few here .. hehee..

    ok so... tired now... I will report back about replacing R55 and R56 .. but i really need help on this... please help us out by read the pdf for the 1120 chip. Let me know if we are on to something or........... it is ok, i can take it.. : )


    again sorry for my bad engish and my poor electronics skill..
    ( pigseye thanx for the kind words about my eglish, it might look "ok" , but you won't believe how much time it took me to "put" this toghter.. hahhaa..

    (oh see the Classified - For Sale part fo the forum for my 10" touch lcd on sale now )

    [ 02-16-2002: Message edited by: toto3 ]
    neo4 and "M" installation E-mail for info

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