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Re: Bad Display Cables/ LCD Ribbon

Posted: Fri Jul 28, 2017 11:19 pm
by sachz
Much better. Thanks Helder. :)

Display problem

Posted: Thu Aug 03, 2017 1:27 pm
by Kevin
Building my MintyPi. Fun!

All seems to be going well. I have the SD card with the latest build. I soldered the Zero. Tested the pins. Boots to emulation station main screen.

Set up wifi (using the HDMI port for a display). Trimmed my ribbon cable. Added tape to the back of the cable.

The thing that isn't working is the display! No display. No backlight. I have Voltage on the display board is present (3.28v). Tested continuity on the 8 pin ribbon cable. Seems fine. Tried both displays I ordered. No joy.

Is there a script to switch to the display? Is there more instructions in the forums? What am I missing?

Thanks in advance.


Re: Display problem

Posted: Thu Aug 03, 2017 1:39 pm
by Kevin
Do I need to be running off of battery and boost? I'm still setting up via USB power.

Re: Display problem

Posted: Thu Aug 03, 2017 1:42 pm
by dryja123
You can power off of the usb port for testing. Can you attach pictures of how you have the ribbon in the board? Also, which way is the metal exposed on the ribbon cable? Pictures will definitely help us help you.

Re: Display problem

Posted: Thu Aug 03, 2017 1:57 pm
by Kevin
Eureka !!!!

I took everything apart for photos and noticed my "thickening tape" could stand a little trimming. After a trim it works!


Re: Display problem

Posted: Fri Aug 04, 2017 3:37 am
by Helder
Glad you found the issue but this is the wrong section I'll move it.