Hey all. I recently picked up a BW 3.5" Lcd panel for my Lynx-Pi, after seeing so much success with that model, and having such good documentation in here for modifying it for 5V use. Of course, what I got looked identical to others from the outside but had a completely different controller board inside.
I couldn't find anything useful for datasheets on the two six-pin chips in it, and I couldn't find anything other than 3v around the board, but i took a guess and injected 5V on the positive side of the 10v cap (my reasoning being that if there's 12v in the power circuits, it's got to have been stepped down by that point). And it works great!
Pics attached hopefully
BW screen variant (new one?)
BW screen variant (new one?)
- Attachments
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- Yep. Working!
- IMG_6283.JPG (1.95 MiB) Viewed 6053 times
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- 5V injection
- IMG_6248.JPG (2.51 MiB) Viewed 6053 times
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- Control board in the display
- IMG_6247.JPG (2.91 MiB) Viewed 6053 times
- phillymadison
- Posts: 6
- Joined: Mon Oct 02, 2017 9:43 am
- Has thanked: 1 time
Re: BW screen variant (new one?)
I just got the same board and saw this post and this post http://www.sudomod.com/forum/viewtopic.php?f=44&t=3892
With your way you didn't have to remove the IC chip? And what happen to the 4th wire?
With your way you didn't have to remove the IC chip? And what happen to the 4th wire?
- phillymadison
- Posts: 6
- Joined: Mon Oct 02, 2017 9:43 am
- Has thanked: 1 time
Re: BW screen variant (new one?)
I was successfully able to do this by running a piece of red wire to the open contact hole above the existing red wire and then to the capacitor. Works great. Here's a picture for anyone that wants to see where the wires go
intoRe: BW screen variant (new one?)
phillymadison wrote: ↑Tue Oct 17, 2017 2:57 pmI was successfully able to do this by running a piece of red wire to the open contact hole above the existing red wire and then to the capacitor. Works great. Here's a picture for anyone that wants to see where the wires go IMG_9865.JPGinto
so it's on the tin of the capacitor that he solder?
sorry for my english, but a french with google translation is not terrible
sorry for my english, but a french with google translation is not terrible



Re: BW screen variant (new one?)
Hey guys,
Same screen, but not working for me
I did same as your pictures, look :

But now I am stuck
Same screen, but not working for me

I did same as your pictures, look :

But now I am stuck
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