Bad screen / ribbon cable
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Bad screen / ribbon cable
Hi all!
I just finished my soldering of the PCB to the pi and connected the screen to test. When I boot it up however, it starts off fine. As soon as I touch the ribbon cable or the screen I get all these rainbow lines on the screen and I loose picture. I'm assuming it's a bad screen or ribbon cable (since the pi worked fine when connecting to an HDMI).. (I'm using all stock parts purchased from sudomod)
Sidenote: I also have no sound...
Any help would be greatly appreciated!!
Thanks guys!!
I just finished my soldering of the PCB to the pi and connected the screen to test. When I boot it up however, it starts off fine. As soon as I touch the ribbon cable or the screen I get all these rainbow lines on the screen and I loose picture. I'm assuming it's a bad screen or ribbon cable (since the pi worked fine when connecting to an HDMI).. (I'm using all stock parts purchased from sudomod)
Sidenote: I also have no sound...
Any help would be greatly appreciated!!
Thanks guys!!
- Helder
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Re: Bad screen / ribbon cable
Which RIBBON? The white one? I would try adding a little extra solder to the white ribbon connector pins on both boards. Could well be a weak solder joint, also pictures of your work is helpful to determine things that could be the issue.
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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.
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Re: Bad screen / ribbon cable
Thank you for your response!!!
Here are some pictures!!
Working fine - https://imgur.com/a/8GfJHUT
Touched / moved the screen / ribbon cable - https://imgur.com/a/p8htUwg https://imgur.com/a/QYpvXBg
My setup - https://imgur.com/a/6Xlfbml https://imgur.com/a/1c7vxG0
Here are some pictures!!
Working fine - https://imgur.com/a/8GfJHUT
Touched / moved the screen / ribbon cable - https://imgur.com/a/p8htUwg https://imgur.com/a/QYpvXBg
My setup - https://imgur.com/a/6Xlfbml https://imgur.com/a/1c7vxG0
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- Helder
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Re: Bad screen / ribbon cable
I haven't had time to look at the links but take the ribbon out completely and do a continuity test on each pin on both sides of the ribbon and bend it slightly to rule out the ribbon or not.
The other likely issue could be the ribbon connector pins having a weak joint so add a little extra solder to each to reinforce them. Use flux to make it an easy clean job.
The other likely issue could be the ribbon connector pins having a weak joint so add a little extra solder to each to reinforce them. Use flux to make it an easy clean job.
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.
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- Posts: 17
- Joined: Mon Mar 05, 2018 1:42 pm
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Re: Bad screen / ribbon cable
Just finished the continuity test on each pin on both sides of the ribbon and it appears as if the ribbon is functioning.
I will try to add some extra solder to it, and see if that works...
Thanks again for all of your help!!!
I will try to add some extra solder to it, and see if that works...
Thanks again for all of your help!!!
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- Posts: 17
- Joined: Mon Mar 05, 2018 1:42 pm
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- Helder
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Re: Bad screen / ribbon cable
Yea loose pin on the connector is likely, add the solder like I said then test.
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.
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