Need help converting BW to 5V

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salami738
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Re: Need help converting BW to 5V

Post by salami738 » Mon Oct 09, 2017 12:20 pm

For anyone who wants to try to mod this screen, i found a thread in a raspberry wiki: https://www.raspberrypi.org/forums/view ... &start=425

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phillymadison
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Re: Need help converting BW to 5V

Post by phillymadison » Tue Oct 17, 2017 6:49 pm

Saw this in another thread and it worked for me.

IMG_9865.JPG
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nexus23k
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Re: Need help converting BW to 5V

Post by nexus23k » Sun Nov 26, 2017 1:21 pm

Hi, my screen is flickering sometime. I only use the yellow wire the white is only for the second Channel is this right?

HarryManback
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Re: Need help converting BW to 5V

Post by HarryManback » Wed Jan 31, 2018 10:13 am

Hi, I got this board form BW. Seems some sort of remix of the one you were discussing about in this topic.

One problem is that the number of one of the chips is scarcely visible. It is the one in yellow in the photo; in the detail photo the number seems to be MK 25D46BTIO 1720, but I'm not sure (the D could be a 0, and the 0s could be Os) and I can't find anything about it. Also, I can't find anything about the 7001 chip, too.

Here there are the datasheet of the other chips:
XL1509-5.0E1 (datasheet: http://www.alldatasheet.com/datasheet-p ... 5.0E1.html)
SS14 (datasheet: http://pdf1.alldatasheet.com/datasheet- ... /SS14.html - NOT COMPLETELY SURE!!)

How can I mod it to run 5v?
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iPuRe_SharKz
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Re: Need help converting BW to 5V

Post by iPuRe_SharKz » Thu Feb 22, 2018 1:45 pm

Hello, i'm in the same situation and i'm stuck... nobody's can help noob's ? xD x)

http://image.noelshack.com/fichiers/201 ... 2fc04.jpeg

http://image.noelshack.com/fichiers/201 ... 85648.jpeg

tinkerbutter
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Re: Need help converting BW to 5V

Post by tinkerbutter » Sat Apr 28, 2018 10:05 pm

Nightwolf wrote:
Thu Sep 07, 2017 6:33 pm
So just to clarify, Tobiwall, are you saying to completely remove the IC and attach 5V to where pin 6 was?
Late to the party, but I can confirm Tobiwall's 5v mod works. Yes, you do need to completely remove the power regulating IC and solder a wire from the 5v pad to pin 6 of the IC pad.

Since there is no photo of the mod, this is what i did to make this particular board work:
IMG_20180428_210236761.jpg
IMG_20180428_210236761.jpg (1.57 MiB) Viewed 5062 times
Blue wire = 5v from VCC
Blue/White = Earth/Ground
Orange = Composite output from device (e.g. Raspberry Pi Zero)
Orange/White = Earth/Ground from output device (e.g Raspberry Pi Zero)

Full disclosure: I tried the mod without removing the IC on my first screen, but it died when I tried lowering the input voltage.

moosethemucha
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Re: Need help converting BW to 5V

Post by moosethemucha » Sun May 06, 2018 11:23 pm

HarryManback wrote:
Wed Jan 31, 2018 10:13 am
Hi, I got this board form BW. Seems some sort of remix of the one you were discussing about in this topic.

One problem is that the number of one of the chips is scarcely visible. It is the one in yellow in the photo; in the detail photo the number seems to be MK 25D46BTIO 1720, but I'm not sure (the D could be a 0, and the 0s could be Os) and I can't find anything about it. Also, I can't find anything about the 7001 chip, too.

Here there are the datasheet of the other chips:
XL1509-5.0E1 (datasheet: http://www.alldatasheet.com/datasheet-p ... 5.0E1.html)
SS14 (datasheet: http://pdf1.alldatasheet.com/datasheet- ... /SS14.html - NOT COMPLETELY SURE!!)

How can I mod it to run 5v?
I've got the same board as you - Did you work out how to get the board running on 5v ?

I'll do some investigation this evening hopefully I can find out how to do it, its so similar but slightly different at the same time.

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