Replacing Audio Amp in Hip Gear Screen Pad

electromaster64 · Post by **electromaster64** » Tue Feb 22, 2005 9:55 pm

Well after seeing Ladyada's NESp with the hip gear screen I figured I would see if they were cheaper than the Casio TVs. They were so I got one for $15 on eBay today.

I know that the screen runs on 5v but the audio amp needs 8v. I have not gotten it yet to take it apart. I also know nothing about audio amplification, besides in my car. This http://www.radioshack.com/product.asp?c ... d=276-1731 is the only thing I could find that ran off of 5v would it work? Or would something else be better? Any tips on how to switch them out would be helpful as well.

Post by **gannon** » Tue Feb 22, 2005 10:02 pm

audio amp doesn't need 8V, that was a mistake. Just remove the 7808 and wire power directly from the batteries

electromaster64 · Post by **electromaster64** » Tue Feb 22, 2005 11:35 pm

gannon wrote:audio amp doesn't need 8V, that was a mistake. Just remove the 7808 and wire power directly from the batteries

So from the batteries to where the 7808 used to be or just to the board w/ the 7808 desoldered???

Also the white LED mod is it pretty much the same for everything or does it vary from screen to screen?

Great as soon as I decide where I am going to put everything in my case and cut it I should be done in no time.

Post by **Sparkfist** » Sun Feb 27, 2005 1:12 pm

Thought it best to post here then make a new thread.

I wired my Hip Screen to my PSone earlier today and well I got audio out I couldnt get video. Now first I did see light when examing the back if the screen so it seems to be working it just doesnt have any picture. If anyone has a suggestion as to what might get it to work I'm listining.

Also a little off topic but I asked my dad if there are any LEDs where he works he mentioned that the smallest are 1/4" would that be too small if I need to replace the backlight on the Hip Screen?

Post by **gannon** » Sun Feb 27, 2005 1:18 pm

I modded the CCFL backlight in my hip screen pad to only consume 20mA by cutting the pink wire. For some reason it still worked

If you don't have the adjustment board attached the video won't show up (at least mine didn't) If you do have it attached, try turning down the brightness.

electromaster64 · Post by **electromaster64** » Mon Feb 28, 2005 3:24 pm

I got my Hip Gear Screen in the mail today so I will hopefully be done with my portable SNES soon. I will also try to make a how-to for the hip gear screen.
Also where did you send the 5v to run the audio amp. I really don't want to break this screen like I did my first PSOne screen.

Post by **gannon** » Mon Feb 28, 2005 3:46 pm

On the mixing board just remove the 7808 and jump the Vin and Vout traces

electromaster64 · Post by **electromaster64** » Thu Mar 03, 2005 5:04 pm

I can't find the 7808 on the board where is it???
Also can I cut the color controller board off and just keep the audio control and it still work?
I am going insane trying to decide how to put this beast together no that I have all my parts.

Post by **Sparkfist** » Thu Mar 03, 2005 11:20 pm

Its on the underside of the audio board. You'll see a spot on it that looks like the ouline of one with a hole in the top the 7808 is on the otherside.

electromaster64 · Post by **electromaster64** » Fri Mar 04, 2005 11:18 am

Awesome thanks I actually just looked on the top of the board and on the LCD controll board so I gues it would have helped if I had turned the thing over.