跳转到主内容

苹果订单编号为MC007LL/A / 27" 2560x1440 分辨率的显示器。

76 个问题 查看全部

there is image from my MBPro but no backlight.

I have same symptoms with my 27 cinema display. Confirmed there is image from my MBPro but no backlight. Has been intermittent for the past year or so and had to unplug and replug a few times whenever I disconnected my MBPro for travel to get it working again. But over past two weeks haven't gotten it to light up. Took to Apple Store where they replaced the logic board which solved this issue for them but when testing it before leaving the store we could never get it to come back on again... they didn't know about the image being visible from MBPro as I just discovered this now.

From your advice, I will now test the DC voltage to the backlight. But are you saying that if it is getting proper voltage the only fix left is the entire LCD panel and the backlight can't be replaced independently?

Thanks for the great step by step troubleshooting advice!

回答此问题 我也有这个问题

这是一个好问题吗?

得分 1

评论:

Any resolution on this issue? I have this same problem. Did they troubleshoot the issue with a known good logic board and the display work normally and the issue persist with the original logic board?

完成的

添加一条评论

2个答案

最有帮助的答案

There is a step-by-step troubleshooting guide in the Apple Technician Guide, see page 17. Screenshot included below.

Block Image

这个答案有帮助吗?

得分 1
添加一条评论

More likely the WLED driver is blown which is on the logic board.

这个答案有帮助吗?

得分 0
添加一条评论

添加你的答案

chris 将永远感激不已
浏览统计数据:

过去的24小时: 0

过去的7天: 0

过去的30天: 2

总计 1,106