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当前版本: pmah ,

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The same happened to me on my out of warranty iMac 27 when I was replacing my defective super drive with a blu-ray player, where I lost a pin on the right side, and on the left side, eight pins were pulled off along with the left most pin pulling off a pad, and part of a trace.
-I have not soldered anything since I was a teenager, and I definitely have no experience soldering SMT, so I watched, and study a lot of video on YouTube. This made me want to get back to my old hobby, but I have no equipment!
+I have not soldered anything since I was a teenager, and I definitely have no experience soldering SMT, so I watched, and studied a lot of video on YouTube. This made me want to get back to my old hobby, but I have no equipment!
I ended up buying a new connector from L2 Computer Inc on eBay, Aoyue 968A+ 4 in 1 Digital Hot Air Rework Station along with a bent nozzle from SRA Soldering, solder paste from Zephyrtronics, schematics from NotebookSchematic, microscope from MicroscopeNet, and a meter from a local electronics store.
-I used the schematics to figure out where to the replacement trace should go. To replace the torn trace and pad, I used one of the pulled pins, and shaped it with needle nose plyers. I applied soldering paste onto the pads, and improvised trace/pad. For those pads with pins attached, I pulled out the corresponding pins off the new connector, and then slipped the new connector on. Using the Hot Air rework station, I used the hot air to solder the connector back on, and the soldering iron to solder the two ends back onto their respective pad. I then used the meter to make sure all the connections are correct according to the schematics, and touched up with solder paste, and hot air where ever the connection was not good, especially my improvised trace fix.
+When I got my equipment, I did some practice soldering on a practice board, gaining some experience on how the hot air soldering work, and how the solder reacts, figuring out the correct temperature to use.
+
+I used the schematics to figure out where the replacement trace should go. To replace the torn trace and pad, I used one of the pulled pins, and shaped it with needle nose plyers. I applied soldering paste onto the pads, and improvised trace/pad. For those pads with pins attached, I pulled out the corresponding pins off the new connector, and then slipped the new connector on. Using the Hot Air rework station, I used the hot air to solder the connector back on, and the soldering iron to solder the two ends back onto their respective pad. I then used the meter to make sure all the connections are correct according to the schematics, and touched up with solder paste, and hot air where ever the connection was not good, especially my improvised trace fix.
I was successful, and typed up my experience with my fixed iMac 27.
I probably spent more than what it cost to ask someone else to fix it, but cheaper than buying a new logic board.
With my new equipment, I can now go on to fix other electronics!

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原帖由: pmah ,

文本:

The same happened to me on my out of warranty iMac 27 when I was replacing my defective super drive with a blu-ray player, where I lost a pin on the right side, and on the left side, eight pins were pulled off along with the left most pin pulling off a pad, and part of a trace.

I have not soldered anything since I was a teenager, and I definitely have no experience soldering SMT, so I watched, and study a lot of video on YouTube.  This made me want to get back to my old hobby, but I have no equipment!

I ended up buying a new connector from L2 Computer Inc  on eBay, Aoyue 968A+ 4 in 1 Digital Hot Air Rework Station along with a bent nozzle from SRA Soldering, solder paste from Zephyrtronics, schematics from NotebookSchematic, microscope from MicroscopeNet, and a meter from a local electronics store.

I used the schematics to figure out where to the replacement trace should go.  To replace the torn trace and pad, I used one of the pulled pins, and shaped it with needle nose plyers.  I applied soldering paste onto the pads, and improvised trace/pad.  For those pads with pins attached, I pulled out the corresponding pins off the new connector, and then slipped the new connector on.  Using the Hot Air rework station, I used the hot air to solder the connector back on, and the soldering iron to solder the two ends back onto their respective pad.  I then used the meter to make sure all the connections are correct according to the schematics, and touched up with solder paste, and hot air where ever the connection was not good, especially my improvised trace fix.

I was successful, and typed up my experience with my fixed iMac 27.

I probably spent more than what it cost to ask someone else to fix it, but cheaper than buying a new logic board.

With my new equipment, I can now go on to fix other electronics!

状态:

open