If the 7805 is bypassed, it may work with 5v. I have a screen that worked when I did that, it just made the CCFL backlight go screwy (so I LED modded it).Life of Brian wrote:If you saw a 7805 on your screen's circuit board, shouldn't that be clear enough evidence that 5v won't be enough to operate your screen?
3.5" DX screen hacking information
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Re: 3.5" DX screen hacking information
LED modding time!
Making stuff with my new beautiful CNC machine!
Would you like a professional looking custom case for your portable? I may be able to help you. Check out this link:
http://forums.benheck.com/viewtopic.php?f=13&t=32724
Would you like a professional looking custom case for your portable? I may be able to help you. Check out this link:
http://forums.benheck.com/viewtopic.php?f=13&t=32724
Re: 3.5" DX screen hacking information
I need a picture because mine doesn't have one. I wanted to know if you have a different revision or model; something like that.Life of Brian wrote:I apologize if that came off as harsh - I intended no malice toward you, I just wanted to make sure I was being really clear.
Also, do you really need a picture of a 7805? Hasn't that been discussed enough on these forums? If you saw a 7805 on your screen's circuit board, shouldn't that be clear enough evidence that 5v won't be enough to operate your screen?
- schmellyfart
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Re: 3.5" DX screen hacking information
Source
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 ), the letters at the menu screen were a little fuzzy on the edges.
- marshallh
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Re: 3.5" DX screen hacking information
This screen contains a 8051 derivative microcontroller (probably for setting up brightness/contrast parameters with the video decoder)
http://www.stk.com.tw/driver/Microc/Dat ... 209%29.pdf" onclick="window.open(this.href);return false;
The video decoder (TW9910 techwell)
http://www.techwellinc.com/products/bro ... TW9910.pdf" onclick="window.open(this.href);return false;
http://lists.zerezo.com/video4linux/pdfPOM35SpYDv.pdf" onclick="window.open(this.href);return false;
Looking forward to hacking it up
edit: All N64 games I've tried don't work, the screen rolls
http://www.stk.com.tw/driver/Microc/Dat ... 209%29.pdf" onclick="window.open(this.href);return false;
The video decoder (TW9910 techwell)
http://www.techwellinc.com/products/bro ... TW9910.pdf" onclick="window.open(this.href);return false;
http://lists.zerezo.com/video4linux/pdfPOM35SpYDv.pdf" onclick="window.open(this.href);return false;
Looking forward to hacking it up
edit: All N64 games I've tried don't work, the screen rolls
Re: 3.5" DX screen hacking information
God damn it! Is this the same problem with the AEI comp screen?marshallh wrote:edit: All N64 games I've tried don't work, the screen rolls
Making stuff with my new beautiful CNC machine!
Would you like a professional looking custom case for your portable? I may be able to help you. Check out this link:
http://forums.benheck.com/viewtopic.php?f=13&t=32724
Would you like a professional looking custom case for your portable? I may be able to help you. Check out this link:
http://forums.benheck.com/viewtopic.php?f=13&t=32724
Re: 3.5" DX screen hacking information
It doesn't work with the Genesis, either...
If you're getting 404'd when trying to use the links in stickies, try this tutorial to find that juicy info.
- joeyjoe9876
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Re: 3.5" DX screen hacking information
didn't work with any NES games when i tested it
- hailrazer
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Re: 3.5" DX screen hacking information
Yea the 3.5" that I tested is much better, works with every system. It is $10 more on Ebay but it is worth it.
http://www.dealextreme.com/details.dx/sku.20415" onclick="window.open(this.href);return false;
http://www.dealextreme.com/details.dx/sku.20415" onclick="window.open(this.href);return false;
My Portable Systems:
-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance
-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance
- joeyjoe9876
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Re: 3.5" DX screen hacking information
yeah this screen seems to work with anything dreamcast and up :/
- hailrazer
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Re: 3.5" DX screen hacking information
Oh yea, I found out that the video ground on these Hong Kong monitors have to be hooked up to the battery ground.
I wonder if that is the problem with the rolling screen on all the 3.5" screens ?
I wonder if that is the problem with the rolling screen on all the 3.5" screens ?
My Portable Systems:
-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance
-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance
- joeyjoe9876
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Re: 3.5" DX screen hacking information
LOL and i already bonodo'ed my gamecube controler in...
- QuickSkope
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Re: 3.5" DX screen hacking information
If I may say, this screen is like 50% less expensive on Ebay
This is the same screen, right?
http://cgi.ebay.ca/3-5-3-5-Inch-TFT-LCD ... 20af0d09f2
This is the same screen, right?
http://cgi.ebay.ca/3-5-3-5-Inch-TFT-LCD ... 20af0d09f2
Re: 3.5" DX screen hacking information
(late reply)hailrazer wrote:Oh yea, I found out that the video ground on these Hong Kong monitors have to be hooked up to the battery ground.
I wonder if that is the problem with the rolling screen on all the 3.5" screens ?
grounds between console and screen ALWAYS have to be connected, regardless of what screen it is.
- hailrazer
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Re: 3.5" DX screen hacking information
Yes but power ground and video ground doesn't necessarily mean the same thingKyo wrote:(late reply)hailrazer wrote:Oh yea, I found out that the video ground on these Hong Kong monitors have to be hooked up to the battery ground.
I wonder if that is the problem with the rolling screen on all the 3.5" screens ?
grounds between console and screen ALWAYS have to be connected, regardless of what screen it is.
My Portable Systems:
-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance
-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance