PS1 Screen Problem - Easy Fix?

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.

Moderator: Moderators

Post Reply
simon66
Posts: 169
Joined: Mon Oct 13, 2008 1:10 pm
Location: Toronto/CANADA

PS1 Screen Problem - Easy Fix?

Post by simon66 » Sat Mar 23, 2013 6:03 pm

Hi,

I bought this screen like 3 years ago and I tried the LED MOD.
I cut the top transformer and plugged in 3 LED's. At the time I couldn't get the screen to work, but today I decided to go back and is working!

Well, somewhat.

I'm using 5V to light them up, and I'm using a 30ohm resistor on each.

This is my setup

At the end of each LED I got a 30ohm resistor.

Here is a diagram.

Image

Now my problem is that my top right LED is at full brightness while the other 2 are really dim. I can barely see anything on the screen. Whats wrong?

After the first resistor, the current drops to 2.8 - 3 V, which is fine.

Thanks!
Image

User avatar
hailrazer
Portablizer Extraordinaire
Posts: 2764
Joined: Mon Jul 10, 2006 8:57 pm
Location: Georgia Sweet Georgia

Re: PS1 Screen Problem - Easy Fix?

Post by hailrazer » Sat Mar 23, 2013 7:48 pm

Power wire with resistor goes to each led + separately.

You don't jump the power wire from one to the next to the next.
My Portable Systems:
Image
-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance

simon66
Posts: 169
Joined: Mon Oct 13, 2008 1:10 pm
Location: Toronto/CANADA

Re: PS1 Screen Problem - Easy Fix?

Post by simon66 » Sat Mar 23, 2013 9:23 pm

hailrazer wrote:Power wire with resistor goes to each led + separately.

You don't jump the power wire from one to the next to the next.

I ended up not using the resistors. I found a 3V pad on the back. The only thing is that if the screen is off, the LEDs are bright, but once the LCD is on, the LCD goes darker making the LED no shine much.

Is this whats supposed to happen? Do I need stronger leds?

Thanks!
Image

Post Reply