Screen FAQ / useful info

If you're making a portable you probably need something to watch it on. (Unless you want to guess what's happening in the game, but I wouldn't advise that) Anyway, this forum is your "Hacking a pocket TV/screen" one-stop solution. Share your experiences and knowledge here.

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schmellyfart
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Post by schmellyfart »

Ok I have some good news on this 3.5" deal extreme screen
It looks pretty good in my opinion.

+Draws 300ma under a load. (240ma standby)
+Should run on anything between 5v and 12v. I have confirmed that it runs on 7.2v and 5v though.
+LED backlit!
+PCB is the same size as the LCD

One thing i noticed is when I played a Dvd (after playing mk64 and GH :lol:), the letters at the menu screen were a little fuzzy on the edges.
deviouskoopa
Posts: 144
Joined: Tue Dec 30, 2008 2:19 am
Location: Virginia Tech

Post by deviouskoopa »

Super Cameraman wrote:I don't understand what headphone switch means on the PSone screen diagram. Is there a physical switch on the screen or something?
If the headphone switch is signaled (headphones plugged in), the speakers are turned off and sound comes out of headphones... otherwise sound would come out of both speakers and headphones. Make sense?
deviouskoopa
Posts: 144
Joined: Tue Dec 30, 2008 2:19 am
Location: Virginia Tech

Post by deviouskoopa »

schmellyfart wrote:Ok I have some good news on this 3.5" deal extreme screen
It looks pretty good in my opinion.

+Draws 300ma under a load. (240ma standby)
+Should run on anything between 5v and 12v. I have confirmed that it runs on 7.2v and 5v though.
+LED backlit!
+PCB is the same size as the LCD

One thing i noticed is when I played a Dvd (after playing mk64 and GH :lol:), the letters at the menu screen were a little fuzzy on the edges.
Idk anything about it, but it sounds good for LED backlit and same size PCB. Idk if it's worth it though compared to PSone screen.
schmellyfart
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Posts: 1151
Joined: Sun Mar 05, 2006 8:29 pm
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Location: Gilbert, AZ

Post by schmellyfart »

deviouskoopa wrote:
schmellyfart wrote:Ok I have some good news on this 3.5" deal extreme screen
It looks pretty good in my opinion.

+Draws 300ma under a load. (240ma standby)
+Should run on anything between 5v and 12v. I have confirmed that it runs on 7.2v and 5v though.
+LED backlit!
+PCB is the same size as the LCD

One thing i noticed is when I played a Dvd (after playing mk64 and GH :lol:), the letters at the menu screen were a little fuzzy on the edges.
Idk anything about it, but it sounds good for LED backlit and same size PCB. Idk if it's worth it though compared to PSone screen.
Id say its best for a n64 or ps1 portable, I wouldnt use it on anything less because of what I call, "solid color syndrome" Multiple vertical lines a little lighter then the solid color.
lifeisbetterwithketchup
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Location: Illinois. Whee.

Re:

Post by lifeisbetterwithketchup »

schmellyfart wrote:
deviouskoopa wrote:
schmellyfart wrote:Ok I have some good news on this 3.5" deal extreme screen
It looks pretty good in my opinion.

+Draws 300ma under a load. (240ma standby)
+Should run on anything between 5v and 12v. I have confirmed that it runs on 7.2v and 5v though.
+LED backlit!
+PCB is the same size as the LCD

One thing i noticed is when I played a Dvd (after playing mk64 and GH :lol:), the letters at the menu screen were a little fuzzy on the edges.
Idk anything about it, but it sounds good for LED backlit and same size PCB. Idk if it's worth it though compared to PSone screen.
Id say its best for a n64 or ps1 portable, I wouldnt use it on anything less because of what I call, "solid color syndrome" Multiple vertical lines a little lighter then the solid color.
Could you elaborate on this "solid color syndrome"? I'm considering using this screen in a SNES portable.
Rekarp wrote:
mako321 wrote:What makes you head ninja, anyways? :wink:
Cause I am Abe F#!@ing Lincoln. :mrgreen:
palmertech
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Location: California, land of the homeless and hippies

Re: Screen FAQ / useful info

Post by palmertech »

It is a composite problem, I get it on my unfiltered PSone LCD in some games (Notably, starfox).
Image

Excellent
lifeisbetterwithketchup
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Steam ID: lifeisbetterwithketchup
Location: Illinois. Whee.

Re: Screen FAQ / useful info

Post by lifeisbetterwithketchup »

So I'd get said problem on any display that used composite as its video input then?
Rekarp wrote:
mako321 wrote:What makes you head ninja, anyways? :wink:
Cause I am Abe F#!@ing Lincoln. :mrgreen:
palmertech
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Posts: 3225
Joined: Sat Feb 02, 2008 1:40 am
Location: California, land of the homeless and hippies

Re: Screen FAQ / useful info

Post by palmertech »

You just need to make sure you are using well shielded wire.

And yes, the problem can happen on any screen.
Image

Excellent
lifeisbetterwithketchup
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Posts: 2180
Joined: Fri Jul 21, 2006 12:08 pm
Steam ID: lifeisbetterwithketchup
Location: Illinois. Whee.

Re: Screen FAQ / useful info

Post by lifeisbetterwithketchup »

OK, thanks for the info. :mrgreen:
Rekarp wrote:
mako321 wrote:What makes you head ninja, anyways? :wink:
Cause I am Abe F#!@ing Lincoln. :mrgreen:
Jon
Posts: 64
Joined: Sun Jan 11, 2009 9:12 pm
Location: Fort Worth, Tx

Re: Screen FAQ / useful info

Post by Jon »

I am currently working on a NESp project, using a PSone screen. I had about 90% of the wiring done (the controller was not fully wired) and had the screen powering up just fine, although a little dull. So I finalized the wiring and everything looked great. I moved my workspace a few feet over and accidentally unwired one connection to the 1/8" mono jack with 5 connections (only 4 of the connections are used in this project FYI). I accidentally re-wired to the other solder point of the mono jack when testing the portable out again and when the game loaded up, the screen flashed white. Now whenever I power up the console the screen will eventually brighten up until it becomes almost completely white. Is something wired incorrectly, or did I screw the screen up previously?

Hopefully someone who frequents this thread has some idea on what I should do to fix my PSone screen.
themadhacker
Senior Member
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Joined: Wed Aug 06, 2008 7:53 pm
Location: ohio

Re: Screen FAQ / useful info

Post by themadhacker »

dude, make your own thread, don't hijack this one.
rest in peace, Ronnie James Dio! \m/
Jon
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Joined: Sun Jan 11, 2009 9:12 pm
Location: Fort Worth, Tx

Re: Screen FAQ / useful info

Post by Jon »

I have asked the question twice in my own thread, thanks anyways.
c_mon
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Posts: 464
Joined: Fri Jan 05, 2007 11:45 am
Location: Turkey

Re: Screen FAQ / useful info

Post by c_mon »

I TAKE COMMISSIONS FOR CNC-ROUTED CASES AND PORTABLES... JUST P.M. ME!
Kyo
Senior Member
Posts: 2470
Joined: Tue Jan 02, 2007 11:59 am
Location: Germany

Re: Screen FAQ / useful info

Post by Kyo »

Once upon a time I found ben's somewhat forgotten brightness hack, and had to find the PAL spot. I forgot to disclose this information at the time, but I am doing so now:

http://kyorune.com/modding/article.php?id=85" onclick="window.open(this.href);return false;
catsaiyan
Posts: 77
Joined: Tue Jan 26, 2010 6:16 pm

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Post by catsaiyan »

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