Alrighty, since I ordered a component cable and am planning on using it in my portable I have a few questions for you Tchay.

First question: When this screen is set to VGA input and you have the signal coming in from your "VGA modded" component cable. Can you boot the cube normally without holding down the B button and get the GameCube's "bios" to display on the screen?

Two: If the answer to the last question is no, then how the Heck are you booting the Wiikey Fusion? Or are you booting it blind?

EDIT:

Three: will the component cable chip run off of 7.4v on the connection described in the pinout here: http://www.gamesx.com/wiki/doku.php?id= ... odigitalav as needing 12v?

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Got my component cable in the mail today. Did the VGA mod to it but havent had a chance to test it with this screen yet as I had to go to work. I'll report back my findings tonight when I get home.

Little side note for people who want the GC component cable but dont want to pay the crazy price for it. Apparently the japanese d-terminal cable is exactly the same thing as far as the guts of the cable go, and can generally be found for much cheaper.

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When you mod the component or d terminal with the vga mod you get a interlaced RGBHV 31khz signal. All games and boot menu are visable. When you hold B you get progressive with compatible games.

This screen support the vga modded component cable fully so you won't be needing composite input.

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Ashen, let us know when you test out the D-terminal cable. That would be nice! They still seem fairly pricey online, but hopefully it gives us more options when buying this cable. Can't believe no one tried this out for the 10 years the gamecube has been in existence

Also, the component cable only needs 3.4v. The 12v line of the chip is not used for video (I think its just for special audio). Its not too picky with grounding either. As I mentioned before, my composite got really flax after I hooked up component, but that doesn't really matter as I'll never use composite again on this portable.

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Fun fact: The screen for Project P will have a higher resolution than the Macbook Retina Displays

I got a chance to test my VGA modded component cable with this screen today and Dang! Tchay you really weren't lying when you said it was sexy smooth.

The difference in picture quality compared to composite is extremely apparent right away. Composite looks decent on this screen but the VGA is definitely the way to go if you can float it for the component/d-terminal cable and can perform the simple mod that makes it output VGA. Glad to see everything is working too, bios displays properly along with everything else, whether the picture is displayed interlaced or progressive. I couldn't be happier, totally worth the $80 investment.

The only thing I noticed with the VGA display is that I cannot get the picture from the GC 100% centered on the screen. Its close though, so no biggie I guess.

I did try taking some pictures to compare the different display modes but they didn't come out very good and don't do the screen justice. I'll have to try again another time.

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I'm guessing the option in the GC bios wouldn't help?

SS

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Forgot about that... I'll have to try it once I get everything wired up for my portable. My component cable is now in pieces.

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I keep having some sort of issue on my VGA side. After doing progressive scan, it displays properly except for very faint vertical lines going down the whole screen. Using the "auto" function in the screen menu only moves the lines across the screen (and recenters everything) but does not get rid of the lines.

I have tried using excessive ground and I think I am...? I am giving the chip 3.34v and the 12+ pin only 5v. I am also powering the whole LCD module off of 5v (reading as 5.4v on multimeter).

Composite seems to show these same vertical lines, but a little worse. VGA by itself seems to display without the lines, but maybe a little too bright? What do you guys suggest??? Should I give the screen more voltage? Am I missing ground somewhere??? Oh and I disconnected the last 3 lines of the component chip as they are for audio (don't think it matters).

I would be SO HAPPY if someone can help me fix this problem as its the LAST hurdle for the Envision.


Pinout for refrence (taken from MBB without asking )

1 DetectCable (pull high)
2 54MHz Clock
3 ClkSelect(C10)
4 GND
5 +12V
6 27Mhz Clock
7 Data0 (C09)
8 GND
9 Data1 (C08)
10 Data2 (C07)
11 GND
12 Data3 (C06)
13 Data4 (C04)
14 GND
15 Data5 (C03)
16 Data6 (C02)
17 3.3v
18 Data7 (C01)
19 LRCK (Audio)
20 GND
21 Data (Audio)
22 BCK (Audio)

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Fun fact: The screen for Project P will have a higher resolution than the Macbook Retina Displays

you do not need to feed 12v power to the board for VGA or Component.
only feed it 3.3v power..


12v power is reduced on the board to 5v.
The MX chip controls the delivery of 5v or 0v to the "black" pad.
The "black" pad is the D-terminal connection data line which signals the TV to display video as interlaced or progressive.
0 V = 59.94i / 60i
5 V = 59.94p / 60p


PIN 20 appears to perform some internal switching:
1. GC powered off...PIN 20 = ~9K ohm
2. bootup and "progressive mode YES NO" message displayed (interlaced)...PIN20 = ~80K ohm = 0v
3. once "YES" is selected, the chip will output progressive scan video and provide signal to D-Terminal...PIN20 = open = 5v




once again, 12v power is only required for D-terminal connection.
save some space and troubleshooting by getting rid of that wire.





Also, just to add further info, without 12v power connected to the board:
1. GC powered off...PIN 20 = ~15K ohm = 0v
2. Interlaced mode...PIN 20 = ~40K ohm = ~0.039v
3. Progressive mode..PIN20 = ~730K ohm = ~0.695v

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I will VGA mod YOUR GameCube component cable for FREE!!!
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or see here: viewtopic.php?f=5&t=11628