Giriş
This guide is an evolution of an answer which I posted to this iFixit question: The question "Can I mod my older iMac to use it as a monitor?" has been asked on iFixit and many other internet forums for over a decade, and it is rarely answered correctly.
This guide is a serious hardware mod. This is not target display mode. This is not a software fix. When this guide is followed, the user will be able to string a video cable between another computer and the iMac and have the iMac behave just like an external monitor.
In summary:
1) Completely teardown the iMac, removing everything.
2) Install a video control board, new inverter, and new power supply for the screen.
3) install new video-in ports on the exterior case.
4) Re-install the screen, reassemble the iMac case.
Prerequisites
- Having followed the guide How to Identify The Make & Model Of The iMac's Screen For The Purpose Of Buying The Correct Video Driver Board and purchased the appropriate Video Driver Board and Power Supply for your iMac.
- Having completely disassembled your iMac. Following the guide for iMac Intel 20" EMC 2105 and 2118 Logic Board Replacement will allow you to teardown most of the iMac. The rest[ guide|1093] so that the case is empty.
- Also compare with this guide: How to turn an iMac Intel into an External Monitor.
Neye ihtiyacın var
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Read and follow the iMac Intel 20" EMC 2105 and 2118 Display Replacement guide, and remove your screen completely.
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Flip the screen over, placing it on a towel to keep it safe. Locate the manufacturer's sticker on the back of the screen, which should contain the screen's Model Number
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The screen used in this particular iMac 20" A#### EMC#### is an LG-brand model-LM201W01, though yours may be different.
FixBot'a Sor
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Search either AliExpress.com or Ebay.com using the search phrase “Your-Screen-Model-Number Control Board”.
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If your iMac is a 20", they should be around $30-$40. If 24", $60-$80.
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Order the video driver board for your screen. It will probably ship from Asia, and take 2-3 weeks to get to you.
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It probably will not come with a power supply. This is normal. Most video control boards require 12v 5A power supplies. You may have one in your spare electronics bin, so check there before buying one: Old routers, PC laptops, etc may have compatible power supplies.
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Follow X guide for complete iMac disassembly.
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Placeholder for info about build
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To reassemble your device, follow these instructions in reverse order.
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6Kılavuz Yorumları
Hi, will this page be completed? I would love to mod my 2011 iMac
I have news. I normally use my old iMac as an external monitor with my macbook pro, connecting it via the firewire port and adapter.
I had to use the SwitchResX app to get a decent screen size and experienced only very sluggish performance.
Today i discovered that you can get far better results with native macOs stuff. Doing:
System Settings -> Displays -> Show resolutions as list -> Show all resolutions
works like a charm, with a lag that is very acceptable. I have no idea when this feature showed up.
It has been a long wait, but thank you apple.
Can you do this with a Mac (27-inch, Late 2012)?
