With no heat sink it takes seconds for the 3.3v regulator to go into thermal shutdown. ?After you attach a heatsink this should not happen.
Jim ?KM4TXR
On Mar 14, 2019, at 4:35 PM, jjpurdum via Groups.Io <
jjpurdum@...> wrote:
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Put some air flow on the 3.3V regulator and see what happens.
Jack, W8TEE
On Thursday, March 14, 2019, 4:06:43 PM EDT, Vince Loschiavo <
vince320@...> wrote:
Hi all,
Got Teensy loaded, JackAl built, and interfaced with the display.
All voltage measurements good to go, Got the display up, can see that the teensy was programmed correctly, but after several seconds (no touch but not worried about that at the moment). Display shut down.
weird all voltages still good all over the board.
(yea notice no heatsink on the 3.3 reg or 5v reg( will get to that).
any quick suggestions that i should take a look at?
any way to get the display powered up and get some kind of display to check that separately?
Vince
