Let me answer to myself, if future someone have same dilemmas.
- No I didn't lose all that missing components. In the schematics, some of components have "nostuff" comment. That basically means that component will not be present after assembly. These components are sometimes flagged as DNF (Do Not Fit), DNP (Do Not Populate), etc
- Cross reference board view and schematic to see what is there.
- I think that in the moment of solder melting temperature at sandwich pads are bit higher then contact points of IC at upper board. Even if temperatures are the same and solder...
Srdjan01
Member
Last Activity: 04-17-2025, 06:52 AM
Joined: 01-18-2025
Location: Belgrade
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IPhone 12 ProMax - Thoughts of (not so young) apprentice
Hi guys.
I'm working on my first board reballing.
It's iphone 12 pro max and I made a mistake(s), but now to learn something, I hope.
Either I overheated the board and two ics fell off on it's own, or I clumsily took of top board and knock them off. Adrenaline was high at that moment so I do not recall best.
I repaired the damage by putting these components back in place. In some moment I begin tinkering about my future steps and about the fact that I have used low melt solder (138C) to put those components back. My line of thoughts was something like, if I use same solder... -
Oral-B IO Series 6
Hi everybody.
I'm trying to fix this toothbrush that doesn't wanna start. And I need your help.
Just to inform you that I'm supperbeginner
First photos are from internet because I did not took a photo of whole board.
I have noticed that fuse marked with "E" near the battery pole is bad and decided to short it with a "proper calibrated wire" as one would say.
Now, when I apply 1V from the power supply, limited to 500mA, one of the component stick out from the rosin mist. CHC N2AB (or some variation of that letters) is the hottest... -
Hi everybody.
I'm Srdjan, from Serbia.
Thanks to my father, I have learned to use soldering iron as young child and I have been using it from here to there. From not long ago something hit me and I started to learn things about repairing electronics.
I'm more a reader then a writer and reading this forum is really a pleasure.Leave a comment:
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