27. Mai 2018 at 19:19 #35904
I am struggling with the 7″ display.
The flat cable is connected correctly at the RPI and display, I checked it more that one times.
The max2play image contains the special branch for the 7″ display. Further, I am using a Justboom amp an own power supply.
justboom and RPI are connected with a normal flat 40 pin cable.
After the boot sequenze, which is shown on the display, I get only vertical coloured stripes or a white screen.
Don’t finish the boot sequenze? Or which other reason exist. What is going wrong?
Thanks to the forum for help.1. Juni 2018 at 19:23 #36012
unfortunately I have to reopen this issue.
After comeback from holiday the same behavior es described first time: in the wurden I can see, bis Fuß boot sequenze start and run, I See several lines which are signed with „Ok“ and than only stripes or a grey screen.
Before our vacation the system start properly.
For me it’s mistery – what is wrong or what I am doing wrong?4. Juni 2018 at 12:55 #36046
This problem I can solve.
But now there is a new problem:
Immediately when starting / gooting appears the temperature symbol (full red) on the touch display.
In the internet I have read, this indicates a to high voltage. Is this correct?
My technical configuration:
RPI with an own power supply (Mean Well rs-25-5) with an output 5.1 Volt (measured)
Justboom Amp Hat with an own power supply (Mean Well rs-75-25) with an output 17,6 Volt (measured)
RPI & Justboom connection: ribbon cable 2 X 20 pins
Do I have a mistake in the technical configuration?4. Juni 2018 at 13:07 #36047
So I understand your answer correctly:
The pin 2 (5 volts) and pin 4 (GRD) in the section P2 are to connect with the screen?
But the screen has a power supply directly from the Mean Well power switching device. Is that not correct or have I to break this power connection and the scrren get his power from the Justboom amp, as described above?
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