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by infrared
Sat Jul 22, 2017 3:55 pm
Forum: HATs and other add-ons
Topic: Waveshare 7" touch screen not working
Replies: 29
Views: 55589

Re: Waveshare 7" touch screen not working

Upon VERY close inspection with a loupe and strong light I realized that the 103 resister nearest the upper-right corner (when looking at the back of the LCD board) had a micro fracture in it. To be more clear, the resister that's at the far edge from the HDMI and USB connectors and at about the sa...
by infrared
Thu Jan 12, 2017 9:58 pm
Forum: HATs and other add-ons
Topic: Waveshare 7" touch screen not working
Replies: 29
Views: 55589

Re: Waveshare 7" touch screen not working

Bruce, you are not alone! I have experienced the same or similar problems. After running the WaveShare 7" touchscreen for nearly a week, the back light suddenly started turning off and on. Like you, I am seeing the back lighting blink off and on when connected to nothing but a power cable. BUT... Af...

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