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Deze versie is geschreven door: Oleg R ,

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Problem in my friend's early 2011 macbook pro was unworking row of keys QWERTYUIO so I decided to figure out what was wrong there.
 
1. It was very dusty inside so heatsink was almost clogged and machine seemed to be very hot. I noticed heatsink sticked to keyboard black foil. But it wasnt that bad.
 
2. I removed keyboard (7066 or so screws, yes) and dissasembleddisassembled it completely, every single key :-)
2. I removed keyboard (7066 or so screws, yes) and dissasembleddisassembled it completely, every single key :-)
 
[image|1246686]
 
3. Next I took a close view foron contact layer of keyboard and figured out what traces are responsible for non working keys and finally find a trace break! Im wonderin' how that break could happen, but it's a fact. There are at least 2 conductive layers separated by thin plasic layer, everything glued together so be careful when diggin' into...
3. Next I took a close view foron contact layer of keyboard and figured out what traces are responsible for non working keys and finally find a trace break! Im wonderin' how that break could happen, but it's a fact. There are at least 2 conductive layers separated by thin plasic layer, everything glued together so be careful when diggin' into...
 
[image|1246662]
 
4. NowThen I had to reestablish that trace so conductive paint was helpful. I used Mechanic MCN-DJ002. Looks kinda terrible but worked. Dont forget to check if you successfully fixed that via. Be careful, that factory traces are very fragile.
4. NowThen I had to reestablish that trace so conductive paint was helpful. I used Mechanic MCN-DJ002. Looks kinda terrible but worked. Dont forget to check if you successfully fixed that via. Be careful, that factory traces are very fragile.
 
[image|1246697]
 
5. When my broken trace was fixed I assembled back machine and now every key works fine.
 
PS this fix is very hard to do but in comparison to changing top cover for 300$ this costed me few hours of time and just 4$ for conductive paint. Its much faster just to replace the whole keyboard - this is my advice for everyone.
PPS
PPS
when you got multiple keys non working - the first that you wanna try is to check your keyboard connector and flex. If it doesnt work and you know how - check pcb vias from keyboard connector to chip that is responsible for that stuff, you need to get schematics and board view. If that was OK - you just get your new keyboardkeyboard and install it, don't bother with diggin' so deep as I did.
PPS
PPS
when you got multiple keys non working - the first that you wanna try is to check your keyboard connector and flex. If it doesnt work and you know how - check pcb vias from keyboard connector to chip that is responsible for that stuff, you need to get schematics and board view. If that was OK - you just get your new keyboardkeyboard and install it, don't bother with diggin' so deep as I did.

Status:

open

Bewerkt door: Oleg R ,

Tekst:

Problem in my friend's early 2011 macbook pro was unworking row of keys QWERTYUIO so I decided to try figure out what was wrong there.
Problem in my friend's early 2011 macbook pro was unworking row of keys QWERTYUIO so I decided to try figure out what was wrong there.
 
1. It was weryvery dusty inside so heatsink was almost clogged and machine seemdseemed to be weryvery hot. I noticed heatsink sticked to keyboard black foil. But it wasnt that bad.
1. It was weryvery dusty inside so heatsink was almost clogged and machine seemdseemed to be weryvery hot. I noticed heatsink sticked to keyboard black foil. But it wasnt that bad.
 
2. I removed keyboard (70 or so screws, yes) and dissasembled it completely, every single key :-)
 
[image|1246686]
3
3
. Next I took a close view for contact layer of keyboard and figured out what traces are responsible for non working keys and finally find a trace break! Im wonderin' how that break could happen, but it's a fact.
3
3
. Next I took a close view for contact layer of keyboard and figured out what traces are responsible for non working keys and finally find a trace break! Im wonderin' how that break could happen, but it's a fact.
[image|1246662]
4
4
. Now I had to reestablish that trace so conductive paint was helpful. I used silver conductive paint Mechanic MCN-DJ002. Looks kinda terrible but worked. Dont forget to check if you successfully fixed that via. Be careful, that factory traces are very fragile.
4
4
. Now I had to reestablish that trace so conductive paint was helpful. I used silver conductive paint Mechanic MCN-DJ002. Looks kinda terrible but worked. Dont forget to check if you successfully fixed that via. Be careful, that factory traces are very fragile.
[image|1246697]
 
5. When my broken trace was fixed I assembled back machine and now every key works fine.
 
PS this fix is very hard to do,do but in comparison to changing top cover for 300$ this costed me few hours of time and just 4$ for conductive paint. Its much faster just to replace the whole keyboard - this is my advice for everyone.
PPS when you got multiple keys non working - the first that you wanna try is to check your keyboard connector and flex. If it doesnt work and you know how - check pcb vias from keyboard connector to chip that is responsible for that stuff, you need to get schematics and board view. If that was OK - you just get your new keyboard.
PS this fix is very hard to do,do but in comparison to changing top cover for 300$ this costed me few hours of time and just 4$ for conductive paint. Its much faster just to replace the whole keyboard - this is my advice for everyone.
PPS when you got multiple keys non working - the first that you wanna try is to check your keyboard connector and flex. If it doesnt work and you know how - check pcb vias from keyboard connector to chip that is responsible for that stuff, you need to get schematics and board view. If that was OK - you just get your new keyboard.

Status:

open

Bewerkt door: Oleg R ,

Tekst:

Problem in my friend's early 2011 macbook pro was unworking row of keys QWERTYUIO so I decided to try figure out what was wrong there.
 
1. It was wery dusty inside so heatsink was almost clogged and machine seemd to be wery hot. I noticed heatsink sticked to keyboard black foil. But it wasnt that bad.
 
2. I removed keyboard (70 or so screws, yes) and dissasembled it completely, every single key :-)
[image|1246686]
[image|1246686]
3. Next I took a close view for contact layer of keyboard and figured out what traces are responsible for non working keys and finally find a trace break!
[image|1246662]
[image|1246662]
4. Now I had to reestablish that trace so conductive paint was helpful. I used silver conductive paint Mechanic MCN-DJ002. Dont forget to check if you successfully fixed that via.
[image|1246697]
[image|1246697]
5. When my broken trace was fixed I assembled back machine and now every key works fine.
 
PS this fix is very hard to do, Its much faster just to replace the whole keyboard - this is my advice for everyone.
 
[image|1246664]

Status:

open

Origineel bericht door: Oleg R ,

Tekst:

Problem in my friend's early 2011 macbook pro was unworking row of keys QWERTYUIO so I decided to try figure out what was wrong there.

1. It was wery dusty inside so heatsink was almost clogged and machine seemd to be wery hot. I noticed heatsink sticked to keyboard black foil. But it wasnt that bad.

2. I removed keyboard (70 or so screws, yes) and dissasembled it completely, every single key :-)

3. Next I took a close view for contact layer of keyboard and figured out what traces are responsible for non working keys and finally find a trace break!

4. Now I had to reestablish that trace so conductive paint was helpful. I used silver conductive paint Mechanic MCN-DJ002. Dont forget to check if you successfully fixed that via.

5. When my broken trace was fixed I assembled back machine and now every key works fine.

PS this fix is very hard to do, Its much faster just to replace the whole keyboard - this is my advice for everyone.

[image|1246664]

Status:

open