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820-2879 replaced U7000
- Thread starter Bohmmen
- Start date
That sounds like a bad SMC
Make that day today!
peterfixit
New member
i re flowed my first yesterday, to fix a short as a last resort, it took a lot of heat, a lot
Reflow SMC to eliminate a short?
How can a reflow (even reballing) eliminate a short in any chip???
Preheat entire board, this will help you a lot...
No need to do it normally, but it helps.
How can a reflow (even reballing) eliminate a short in any chip???
Preheat entire board, this will help you a lot...
No need to do it normally, but it helps.
peterfixit
New member
last resort, as is full short, everything else removed, caps first, then chips, then resistors and filters then the last thing was smc
Impossible to eliminate a short in such way!
You must change it.
The reflow/reballing "solve" intrernal problems related with broken connection (inside chip); doesn't apply for any (internal) short...
You must change it.
The reflow/reballing "solve" intrernal problems related with broken connection (inside chip); doesn't apply for any (internal) short...
peterfixit
New member
i dont think you are reading my messages properly, if you dont understand stop replying, the point is that i had already removed everything on the entire line and the smc was the only thing that was left, it was reflowed and then REMOVED and the short persisted, im not asking for help with this, this is not my post, this was about reflowing an smc the reason why is irrelevant
I understood you perfectly.
I just wanted to explain you, do not waste time in the future reflowing a chip thinking that way a short will disappear.
Remove it directly, when other things have been already tested; as last resort.
And also gave you a hint to help replacing SMC; which takes a lot of hot, as you told...
If you've been offensed as I tried to help you, no problem, I will no bother you anymore...
I just wanted to explain you, do not waste time in the future reflowing a chip thinking that way a short will disappear.
Remove it directly, when other things have been already tested; as last resort.
And also gave you a hint to help replacing SMC; which takes a lot of hot, as you told...
If you've been offensed as I tried to help you, no problem, I will no bother you anymore...
peterfixit
New member
thanks, appreciate it