Need help w/datasheet: RGB to TFT LCD RGB?

ShockSlayer · Post by **ShockSlayer** » Wed Nov 12, 2008 6:55 pm

http://datasheet4u.com/html/M/M/1/MM128 ... C.pdf.html

I have a dvd player screen(apex pd480) with this chip on a controller board in the top half connected to the screen. I think I can connect RGB here somewhere and get it to play on the screen. Uhh...can I?

SS

jleemero · Post by **jleemero** » Wed Nov 12, 2008 9:00 pm

Only took a quick glance, but it does look like you can connect RGB.

LOOKS like pins 2, 4, and 8 are what you're looking for.

Don't hold me to that.

Kurt_ · Post by **Kurt_** » Thu Nov 13, 2008 12:36 pm

For RGB you also need Csync.

Try looking at the section that says RGB IN in big bold letters.

Pins

2,3
4,7
8,9

C-sync would be either pin 10 or 16.

That datasheet has everything clearly labeled, it should be hard NOT finding everything you need there, in a nice table layout too!

ShockSlayer · Post by **ShockSlayer** » Thu Nov 13, 2008 2:59 pm

So I could connect a gamecube to this screen?!?!

SS

ShockSlayer · Post by **ShockSlayer** » Sun Nov 16, 2008 2:31 pm

Wow. I pried up the plug and found the pinout, silkscreened underneath. *hits self*

Pin 1 Blue
Pin 2 GND
Pin 3 Red
Pin 4 GND
Pin 5 Green
Pin 6 GND
Pin 7 GND
Pin 8 VSS
Pin 9 VCC
Pin 10 VEE
Pin 11 VGH

Now then, I dont understand what kind of RGB this is... But I have gotten a picture on the screen before... Where would CSYNC Go? This pinout is of the plug that connects the controller board to the main board. There is no other connection to the screen.

SS

EDIT: This wouldnt be Y Pb Pr or Y CB cr RGB would it? Because that is what I've been testing with, from another dvd player.

ShockSlayer · Post by **ShockSlayer** » Sun Nov 16, 2008 5:03 pm

SAY YES TO SUCCESS!!!

I win. I put in RGB to the av plug(pinout above) and C-Sync to pin 10 on the mitsumi chip and behold!

Camera quality ain't that great...the picture looks amazing on the screen...cannot wait to see what a gamecube looks like!

The board on the right is the entire controller board. Yes, thats all there is! No audio, but an amp should be simple enough. Left is the Backlight board, the two were once a single board, but I cut it in half, as they were two seperate circuits.

If I am not mistaken, it runs off of 5v and 8.4v, but I am not sure yet.

I will add a video later, if I can get it(video) to a smaller size.

Please add this to the sticky!

SS

Gordon1 · Post by **Gordon1** » Sun Nov 16, 2008 5:45 pm

Good job, this is good to to know seeing as I just bought 4 broken portable dvd players.

ShockSlayer · Post by **ShockSlayer** » Sun Nov 16, 2008 6:32 pm

Gordon1 wrote:Good job, this is good to to know seeing as I just bought 4 broken portable dvd players.

Thank you! Rip em open and research the chips...that will yield you the answers you need.

SS

ShockSlayer · Post by **ShockSlayer** » Fri Nov 21, 2008 4:04 pm

BUMP!

Composite is just RGB tied together right? Could I connect composite to RGB and get csync in and have it work?

SS

techknott · Post by **techknott** » Fri Nov 21, 2008 4:56 pm

Hey SS, I have one of these controllers, would you be so king as to take(and post) voltage readings for the controllers power?

ShockSlayer · Post by **ShockSlayer** » Fri Nov 21, 2008 5:10 pm

Ok, I looked in the datasheet for the chip(today, ironically) and I did a few readings with my multimeter and I revised my pinout:

Pin 1 Blue
Pin 2 GND
Pin 3 Red
Pin 4 GND
Pin 5 Green
Pin 6 GND
Pin 7 GND
Pin 8 VSS - (also ground?)
Pin 9 VCC - 5v [4.5(min) - 5.5(max)]
Pin 10 VEE - 13v [10v(min) - 14v(max)]
Pin 11 VGH - 13v [Assumed to be the same as above]

I do know through experimentation that pin 10 and 11 can run off the same voltage..hopefully 7.2v will work, I have not tried yet, but I will when/if I get the chance. They are not connected on the board; perhaps they lead to opposite chips?

I dont know how to correctly use this multimeter yet(and I don't know electricity readings well either), but here is what I suspect through the reading I got from the dvd player's plug:

5v line outputs .5Ah
13v line outputs 1.5Ah

This means to me that it primarily runs off of 12v?

SS