PreenFM > preenfm2 and preenfm3
[FIXED] pfm2 Eurorack : DIY help, frozen screen
Xavier:
--- Quote from: zmberber on October 27, 2020, 08:23:10 PM ---It booted, I was able to do stuff in edit mode for a few seconds, and then it suddenly froze. And then, as soon as I rebooted, it gave me the fully lit blank screen again. And this happens over and over everytime I reboot. think if I wait for a longer time and I power on the module again, I can get to the edit menu again for a few seconds, but then it will freeze again (Or maybe I am just imagining stuff). Could it be that some capacitor is wrong or faulty? Is my USB reader broken or something?
--- End quote ---
When you say "it suddenly froze", is it when you access browse or load presets ? or at any moment ?
--- Quote from: zmberber on October 27, 2020, 08:23:10 PM ---Could it be that some capacitor is wrong or faulty? Is my USB reader broken or something?
--- End quote ---
No i don't think so (for both question).
That's weird.
Could be a bad connection of the preenf405. Double check the DIP40 soldering and push a little more the preenf405 inside.
Ardi from Van Daal Electronics follows this forum, but you can try to contact him directly to see if he has an idea.
zmberber:
I just think posting stuff in the forum is good because others might have similar problems so they can see how I fix my problems (that's what forums are for, right? ;D).
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Xavier EDITED : Sorry i made a bad action with this message and remove 80% of it :-\
But i totally agree with what you wrote :)
zmberber:
Hm, I pressed on the chip, and then I was able to play around in edit mode a bit longer than before, but then as soon as I pressed "menu", it froze and then I saw the blank screen again.
I tried again, I wiggled around the chip (i put it in and out of the socket), tried again, but this time, i hardly did anything, and then it froze.
i am not sure if pressing "menu" was the reason, i think it was just random.
EDIT: yes indeed, it is random, i again had the situation that i got a blank screen just suddenly (i scrolled through algos). it really seems to be random, because this time it happened after i did nothing.
EDIT 2: And this time, I did the following: It booted, I was able to do stuff, then I did nothing, then I waited, and then I just tapped the module (the whole thing, I just tapped the chassis), and then it gave me the blank screen. So apparently there is some faulty connection of the (or a) chip.
Xavier:
--- Quote from: zmberber on October 27, 2020, 09:18:22 PM ---EDIT 2: And this time, I did the following: It booted, I was able to do stuff, then I did nothing, then I waited, and then I just tapped the module (the whole thing, I just tapped the chassis), and then it gave me the blank screen. So apparently there is some faulty connection of the (or a) chip.
--- End quote ---
That could explain.
Just in case : there's a display problem with 2.20beta firmware when screensaver is activated.
Mais sure that's not what you have.... Stick with 2.12_cv version for the eurorack for the moment.
zmberber:
i have p2_cv_2.12.bin, so that should be the correct version.
so apparently i need to check out the chip... damnit... maybe i should check the soldering points of the socket for the chip? or i should desolder and solder a new socket?? i hope i can work it out...
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