跳转到主内容

Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

588 个问题 查看全部

Graphics card resistor issue

So, I removed the resistor from the logic board so I could use the mac, but when I reseted the smc and nvram I got no screen. And I lost the resistor but when I touch with my screwdriver the screen turns on. Now comes the part where I need your help, I screw up the resistor pad (its brown), how can I fix it, and if I can, where can I buy it ?

Block Image

Update (07/31/2020)

New and focused image

Block Image

Update #1

I found this, but I don’t know what I am looking at

Block Image

Update #2

Also found this, I guess this is something helpful no?

Block Image

已回答! 显示答案 我也有这个问题

这是一个好问题吗?

得分 0
3条评论

Your picture is too blurred (and dirty) to see the damage.

Try using a tripod as well as increase the light (indirect soft lighting, no hot spots) so your camera uses a faster shutter speed and smaller aperture.

完成的

I posted a better image

完成的

@ze_castro - Now you need the boardview drawing so you can identify the part by its placement and then identify the pad point.

完成的

添加一条评论

1个答案

已选择的解决方案

@ze_castro - Much better! Can we try cleaning the surfaces a bit with a cotton swab and isopropyl alcohol so the flux and junk is removed.

The question is how much of the copper pad is still present. If not then you'll need to figure out where the nearest point the trace was part of. This will require access to the schematics and board views for your logic board. Locate the 820-???? number on the board as we’ll need it to find the info to trace out the circuit.

这个答案有帮助吗?

得分 1
添加一条评论

添加你的答案

ze_castro 将永远感激不已
浏览统计数据:

过去 24 小时: 0

过去 7 天: 1

过去 30 天: 5

总计 258