Dead PanelDue 7I
-
@dc42 said in Dead PanelDue 7I:
Yes that's the correct part.
did you click the link or just read the url?
maybe its just on my system it shows the -UU bga version?
(no i think digi key is discarding the - and the new part number indicate rev A giving hits for BA-UU instead of B-AU? and he should look for BA-AU)
-
You are quite right, I forgot there there is an extra A in the part number. This is the right one: https://www.digikey.com/products/en?keywords=atsam4s4ba-au
-
Nasty "feature" from digi-key though!
-
Just to confirm:
https://www.digikey.com/product-detail/en/microchip-technology/ATSAM4S4BA-AU/ATSAM4S4BA-AU-ND/4557082Is the one to order ?
Thank you
-
@MikeD said in Dead PanelDue 7I:
Just to confirm:
https://www.digikey.com/product-detail/en/microchip-technology/ATSAM4S4BA-AU/ATSAM4S4BA-AU-ND/4557082Is the one to order ?
Thank you
Yes.
-
Ordered, will see how it goes.
Any recommendations how to go about replacing it ?
I welcome any suggestions.
I will watch some videos etc to better prepare in the meanwhile.Removal:
I would assume I want to take the PanelDue as far apart as I can, remove the screen etc.
I do have a reflow gun, after taking apart my plan is to try to heat the chip enough to remove by pushing it off to the side? I could see doing this would possibly bridge some gaps.
Or perhaps before heating try to glue something to the top to use as a lifting device ?
I do also have a "solder sucker" and a Hakko FX-888D soldering iron with many small tips.
Should I try individually going around the legs and removing as much solder as possible ?
Also have copper desoldering braid, perhaps that would be the best method before heating with reflow gun ?Install:
Hmmm, let me remove it first without collateral damage..... -
Unless you have experience with removing this sort of chip using hot air, you might want to look at ChipQuik or similar low melting point solder, and a no-clean flux pen.
To lift the chip off, either use a vacuum pickup device, or glue a piece of wire to the top (which probably isn't workable with hot air but would be with ChipQuik).
Don't be tempted to lever the chip off the board, because that will lift the PCB traces.
Study some of the videos that you will find on YouTube, and practice on an old hard disk drive if you have one.
-
Thank you, great ideas.
Definitely can scrounge up some old electronics around to practice on. -
I received the new PanelDue I ordered today, came up as it should have.
At least I can be certain that the Wifi board itself does not have anything going on with it that would prevent the PanelDue from doing its job. -
An update. As I was preparing for brain surgery on this thing it has been sitting in its Anti Static bag for the last at least 48 hours.
Decided to plug it into the computer (same cable, was still plugged into the computer) and that is when i heard that lovely ba-da-bing sound. The computer recognized it and it showed up as a a Bossa port. I was able to flash it.
Currently the printer is mid print, so I cannot install it to verify that it works fully.
Either way, for anyone with a possibly similar situation, letting it sit for a while, and possibly in the anti static bag may be helpful. -
Thats good news! I think Ian suggested something like that, which interesting to see working!
Now you just need another Duet board to go with the replacement;)
-
The nice thing is that i have another board. Was going to down the line get a duet 5 for it since its a small printer, but it will be a small printer with a big display.
-
@MikeD said in Dead PanelDue 7I:
it has been sitting in its Anti Static bag for the last at least 48 hours
Hey! That was my fix!
Glad it's working. Not sure this has ever worked before. Must have been a cosmic ray that flipped a bit somewhere...@MikeD said in Dead PanelDue 7I:
Was going to down the line get a duet 5
You'll have to wait a while for Duet 5, we've only just got to Duet 3!
Ian
