White stripes on 3.5 screen. Broken?
White stripes on 3.5 screen. Broken?
I did the 5v mod to the controllerboard as suggested. Then I hooked it up to the raspberry zero for a test drive. It starts, but have four white lines across the top of the screen. Have I messed up or is the screen broken? The screen is from Gearbest..
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Re: White stripes on 3.5 screen. Broken?
Hard to say without pictures showing your soldering and did the screen not have those lines before the mod? Was the screen tested before the mod?O_gg_e wrote:I did the 5v mod to the controllerboard as suggested. Then I hooked it up to the raspberry zero for a test drive. It starts, but have four white lines across the top of the screen. Have I messed up or is the screen broken? The screen is from Gearbest..
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Don't contact me about obtaining my board files (as you will not get them). If my Boards or PCB Kits are sold out, they will be restocked as soon as I can get them and there is demand for them. You can join the mailing list on my Website to be notified when they are available.
Helder's Game Tech Website
We will not support any cloned work so don't come to us with technical issues to resolve, go talk to the cloner for help.
Re: White stripes on 3.5 screen. Broken?
I didn't test the screen befor unfortunately. Rookie mistake I guess

Re: White stripes on 3.5 screen. Broken?


Not the the best pictures. But hopefully you can see my problem.
Re: White stripes on 3.5 screen. Broken?
You connected both white and yellow wires?
You only need to connect 1, so or yellow, or white. The driver board has two input channels....being 1 white, one yellow.
Disconnect one from the pi (it is not connected at all), in your case I would disconnect the yellow wire.
Not sure if it will fix your problem......I would think the screen or the driver board has a problem.
You only need to connect 1, so or yellow, or white. The driver board has two input channels....being 1 white, one yellow.
Disconnect one from the pi (it is not connected at all), in your case I would disconnect the yellow wire.
Not sure if it will fix your problem......I would think the screen or the driver board has a problem.
Re: White stripes on 3.5 screen. Broken?
Both the wires are connected. I'll gonna try desoldering one of the wires as soon as I get back from work. See if it makes any difference.
Thank you! I really appreciate your help.
Thank you! I really appreciate your help.
- Helder
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Re: White stripes on 3.5 screen. Broken?
Was that mod in the wiki? Often it's been a wire going to the 8pin chip and not a Diode.O_gg_e wrote:Both the wires are connected. I'll gonna try desoldering one of the wires as soon as I get back from work. See if it makes any difference.
Thank you! I really appreciate your help.
Chat with me and other members On Discord
Don't contact me about obtaining my board files (as you will not get them). If my Boards or PCB Kits are sold out, they will be restocked as soon as I can get them and there is demand for them. You can join the mailing list on my Website to be notified when they are available.
Helder's Game Tech Website
We will not support any cloned work so don't come to us with technical issues to resolve, go talk to the cloner for help.
Don't contact me about obtaining my board files (as you will not get them). If my Boards or PCB Kits are sold out, they will be restocked as soon as I can get them and there is demand for them. You can join the mailing list on my Website to be notified when they are available.
Helder's Game Tech Website
We will not support any cloned work so don't come to us with technical issues to resolve, go talk to the cloner for help.
Re: White stripes on 3.5 screen. Broken?
I had the same lines on my 5 inch display, except vertical, and I needed to add settings to the config file on boot.
Something like:
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt 320 240 60 6 0 0 0
Found this on Amazon for BW screens:
framebuffer_width=320
framebuffer_height=240
overscan_top=-16
overscan_bottom=-32
overscan_left=0
overscan_right=-16
sdtv_mode=2
Something like:
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt 320 240 60 6 0 0 0
Found this on Amazon for BW screens:
framebuffer_width=320
framebuffer_height=240
overscan_top=-16
overscan_bottom=-32
overscan_left=0
overscan_right=-16
sdtv_mode=2
Re: White stripes on 3.5 screen. Broken?
I tried desoldering the white and the yellow wire.
No yellow wire: same as before
No white: no picture at all
Helder:
I didn't find my layout in the wiki. But I found this in the forum.
http://www.sudomod.com/forum/viewtopic.php?t=2247
dadi4168:
Interesting! I'm going to try that. See if it makes any difference. Thank you!
No yellow wire: same as before
No white: no picture at all
Helder:
I didn't find my layout in the wiki. But I found this in the forum.
http://www.sudomod.com/forum/viewtopic.php?t=2247
dadi4168:
Interesting! I'm going to try that. See if it makes any difference. Thank you!
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