Sharp/ Casio Gamecube display

hawk135 · 02-10-2006, 08:54 PM

Thought I'd post here first as your forum's led me to the information I needed to complete this hack.

I recently hacked a Sharp LM6Q401 display (Identical to the Casio CMV54NT04P)
for VGA input. Here's how I did it.

1. Get a game-cube portable display such as the Interact brand one I used, basically anything containing the LM6Q401 or CMV54NT04P display module.

2. Dissassemble until all you have is the bare display

3. Get a VGA cable or connector and wire it up

Back of LCD:
1 - NC
2 - Blue
3 - Red
4 - +12v
5 - Gnd
6 - NC
7 - Composite Sync
8 - Green
9 - +12v
10 - Gnd

DB15 or VGA connector:
1 - Red
2 - Green
3 - Blue
13 - Horizontal Sync (connect to composite sync)
10 - Gnd

4. Make a connector for the back if you like

I used the power connector from the origonal casing and a cable cut from the back of a dead monitor

5. Hook it up to your computer and configure it with powerstrip. These are the current settings I'm using:

640x480 (arcade mode setting)
Composite Sync (this is the key to making it work)
Interlaced
Pixel Clock: 11Mhz
Horiz Scan rate: 13.221Khz
Vert Refresh rate: 20.498

you'll have to play with the size/ position to get it dialed in perfectly

6. Enjoy the end result

ls1234 · 03-23-2006, 11:14 AM

first i would like to say that the infomation above has provide a lot of help cheers for posting it.

i have got the sharp display (gamecube lcd ) exact same display, wired up corect as per the prevous post.

the display defently does works properly as i have tested it.

the problem comes when configering powerstrip . i can get get at display at 640 , 480 this ok but its it will only be in the centre of the screen . so the image is square and a strip aprox 1cm vertical either side of the display that is wasted. AND is too small really.

i have tried adusting the timing and sizing and but when i incease the size past what will fit on the display the display goes out of sync.

i also can only get the stanard res working , 680 by 480 , 800 by 600. ect
the aspect radios dont do much either.

any help or things to try would be a great help.
thanks

hawk135 · 03-23-2006, 01:05 PM

To get things sized up properly I had to do alot of playing with the settings (Fields such as: front porch, etc...). Wish you would have posted before I reformatted, could have put up my config file...

ls1234 · 03-23-2006, 02:12 PM

thanks for your reply ,
much aprecied . will have to play about more .
if anyone has any more info please post .

ls1234 · 03-25-2006, 04:17 PM

just to say that i have got it working not too bad and it fills the whole screen. ended up buying a cheep and old
Matrox Mystique PCI Graphics card off ebay and now it works.

dazmanultra · 04-25-2006, 09:29 PM

Thanks for the guide, much appreciated!

Just wondering though, how do i find out which wires inside the VGA cable go to which pins on the cable?

Motorcity · 04-25-2006, 09:37 PM

Quote: Originally Posted by dazmanultra

Thanks for the guide, much appreciated!

Just wondering though, how do i find out which wires inside the VGA cable go to which pins on the cable?

Am I reading this right??? Did you just ask how to tell which wires are attached to what pins on a chopped VGA cable?
Ever hear of an Ohm Meter? wtf? if you are entertaining the idea of doing this VERY simple hack, and don't have a dvom, or know how to trace wires on a cable, please disconnect from the internet and go outside to play.
Thank you.

EDIT: props to the OP for a well written, detailed how to. Good job newbie!

dazmanultra · 04-26-2006, 07:49 AM

Quote: Originally Posted by Motorcity

Ever hear of an Ohm Meter? wtf? if you are entertaining the idea of doing this VERY simple hack, and don't have a dvom, or know how to trace wires on a cable, please disconnect from the internet and go outside to play.
Thank you.

No need for the rudeness mate, especially not to a new member... I thought there might be a standard, like with a CAT5. Just saves me (and everyone else) a few minutes messing around with a multimeter.

Motorcity · 04-26-2006, 03:00 PM

Quote: Originally Posted by dazmanultra

No need for the rudeness mate, especially not to a new member... I thought there might be a standard, like with a CAT5. Just saves me (and everyone else) a few minutes messing around with a multimeter.

There is no color standard that I am aware of when it comes to VGA cables.
If there is, I think ISO's website would have that info.

LRGMMC · 09-20-2006, 01:01 AM

Hey, anyone have the pinout to the controller board for the sharp gamecube screen. the origanal one?

MrMAyhem · 01-03-2007, 02:45 PM

THank you so much for posting this!!! I've been looking for some time now for I have this very same LCD screen. I'm rather new at this sort of thing so I have a question concerning power to the LCD. Can it be run directly from a PC's power supply via the 12v line and ground wire from a "molex" connector?? Would I need to utilize BOTH pins on the LCD for power? In other words run two power leads to a single molex pin and the same for the ground wires. Or would I need to use something like a cigarette lighter power adapter modified to use in my PC?? Again thank you for posting this info, it's helped out quite a bit!!!!!

wh00ps · 07-25-2007, 12:33 AM

Please don't shoot me for bringing up an old topic! I'm now working on the same lcd screen, which is available in the xbox screen being sold by geeks.com (was around $30, now up to $40). Thanks for this great guide!

Quote: Originally Posted by MrMAyhem

Can it be run directly from a PC's power supply via the 12v line and ground wire from a "molex" connector??

It should be able to, yes. I'll be trying it just as soon as I can get the connectors hooked on.

EDIT: Confirmed

Quote:

Would I need to utilize BOTH pins on the LCD for power? In other words run two power leads to a single molex pin and the same for the ground wires.

I'm assuming not. My unit was only powered through pins 9 and 10 (above), and my setup will use the same pins. I'm not really sure why all the unused and duplicate pins, but it may have been for compatibility with an older design or higher power ratings.

EDIT: Confirmed. You can actually use either 9 and 10 or 4 and 5, or any combination of the two. I haven't bothered to check if those pins just connect to each other, but I'm assuming they do.

Quote:

Or would I need to use something like a cigarette lighter power adapter modified to use in my PC??

Baaaad idea. Your cigarette lighter puts out roughly 12v, but during and directly after starting it can range from 6-24v (or worse). For my CarPC project, I'm using a PicoPSU, which can regulate the voltage and maintain a steady 12v.

A little extra info: my unit has an extra wire popping out of the hole to the top left of the connector, this appears to be a brightness control. I'm going to try and hook it into the dash brightness control, through the CD player's wiring harness. I'll report back here on the results of that, if there are no objections.

pbarrette · 07-29-2007, 12:26 PM

Hi wh00ps,

If you're using the PicoPSU, then the "12v" output line is not regulated at all. It is actually at roughly the same voltage as the input. Most reviews show the 12v output line at ~0.3v below input, which would suggest that the output is only separated from the input by a diode, possibly for reverse polarity protection.

pb

wh00ps · 07-31-2007, 02:51 AM

Hmm, I hope that's not the case. I purchased the PicoPSU-60-WI specifically for this purpose, and all the reviews I can find show only the normal (non-wide input) version.

2k1Toaster · 07-31-2007, 03:10 AM

Quote: Originally Posted by wh00ps

Hmm, I hope that's not the case. I purchased the PicoPSU-60-WI specifically for this purpose, and all the reviews I can find show only the normal (non-wide input) version.

I bought the PicoPSU when I started my CarPC project. At that time it passes out whatever voltage was fed into it. I do not believe they have changed the product, just the warnings. I know see on many ebay pages something to the tune of "not suitable for in the car. Use this one instead" and links to a M2.

I am afraid your Pico wont work. Sorry.