Re: 7 inch Display Destroyed $50.00 brick
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Yes, unfortunately BuyDisplay post-sale support sucks. We've had several displays go bad and they "test them" and say they are fine. Al does have the Gerbers for the protection board and I'm sure he'd share them.
Jack, W8TEE
On Wednesday, April 24, 2019, 9:10:46 AM EDT, Vince Loschiavo <vince320@...> wrote:
So it seems that the 3.3 v on board(jackAl) regulator took a dump, even with all heat sink and fan (cool to touch heatsink)..and probably sent the 12 volts to the display..
this caused the display to go blank (had been working though for the last couple of weeks), but I never got through the cal routine.
Just when I finally broke the code, and was going to try v0.96, nothing !
replaced the jackAl regulator, no help...display causing the issue, pulled the 3.3v regulator on the display it appears to be ok, now will try and see if it destroyed the RA8875 chip.
BuyDisplay not interested in helping with a replacement (probably because the JackAl board caused the issue.
There needs to be a bit of a redesign to add AL's mod for 3.3v protection to the board itself.
UGGG.
More to follow...had to order another display.? Not happy.
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jjpurdum