skorpien
Posts: 7
Joined: Thu Dec 10, 2015 5:59 am

Using a different LCD panel with KeDei 3.5" HDMI board?

Tue Oct 31, 2017 3:33 pm

I have a 3.5" HDMI TFT LCD (KeDei v1.1, 2017/7/1) that I purchased from eBay.

I've managed to break the LCD panel itself and was wondering if it could be switched with another panel?

I realize it's probably cheaper to go with a new unit entirely, but seeing as the board still works I figured I would at least try to salvage it.

From what I can gather (ie, printing on PCB) it's an 18bit 39pin panel. I was able to source a couple of 39pin panels on Alibaba but I'm not sure they would work.

The Alibaba panels have their pinout listed. I just can't find any documentation on the KeDei pinout to compare.

Any help would be greatly appreciated.


User avatar
saper_2
Posts: 220
Joined: Sun Aug 03, 2014 10:08 am
Location: PL

Re: Using a different LCD panel with KeDei 3.5" HDMI board?

Wed Jan 03, 2018 10:47 pm

shahidali55 wrote:
Sun Dec 17, 2017 2:52 pm
You can buy the LCD screen separately:

https://www.aliexpress.com/item/3-5-inc ... 87937.html

Big thanks for replacement :) (and more info about the display) , I have updated my review about this kedei hdmi display and gave you credits for find :) ( viewtopic.php?f=45&t=175616&p=1120533#p1120533 ).

skorpien
Posts: 7
Joined: Thu Dec 10, 2015 5:59 am

Re: Using a different LCD panel with KeDei 3.5" HDMI board?

Wed Jan 17, 2018 5:31 am

Thanks shahidali55. I ended up ordering it but for some reason it's not working. Is it possible they've revised more than just the LCD panel? Or did I just get a dud?

I hooked up the old screen to make sure it wasn't the driver board. The old screen turned on (no picture though, just backlight) but the new one doesn't even light up.

Is there any way to test the board to figure out what the pinout actually is?

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