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Step 2Take apart your suspect.
Next we need to take apart our computer to get at the insides. This differs from one model to another. These original computers were made very easy to take apart.
Most of the time you need a long allen key/allen wrench/Hex key in order to reach all the screws on the rear.
The main concern here is the CRT. When disassembling anything with a CRT you have to be very careful in regards to two things.
Once that is done, you can either carefully grab all the internals without unplugging anything, dump it in a box and forget about it, or you can discharge the CRT (which we do use later for creating the new screen.
In order to discharge the CRT you need a long screwdriver, a resister, and some wire.
Pop the CRT to one side, and pack the rest of the innards somewhere safe incase we need any of it.
Be sure to keep the original screws, we use these throughout to add in the new internals.
Most of the time you need a long allen key/allen wrench/Hex key in order to reach all the screws on the rear.
The main concern here is the CRT. When disassembling anything with a CRT you have to be very careful in regards to two things.
ELECTRIC SHOCK HAZARD
The best solution here is first, to leave the computer turned off for a month or so, most charge will have been lost over this time.Once that is done, you can either carefully grab all the internals without unplugging anything, dump it in a box and forget about it, or you can discharge the CRT (which we do use later for creating the new screen.
In order to discharge the CRT you need a long screwdriver, a resister, and some wire.
- First, solder up a small circuit with a crocodile clip either end, and a 1-10 Meg resister in the middle
- Attach one end of the circuit to a screwdriver
- Connect the other end to an earth point, (i attached it to the metal frame of the macintosh which had since been disconnected from the internals but could be earthed through the power cable, the wall socket does not need to be turned on)
- Carefully slide the screwdriver under the cap on the side of the CRT with one hand, put the other hand in your pocket, this way if you do get shocked it should hopefully miss your heart and head for the earth.
- You might hear a small pop, but I did not hear one, personally a small pop would be best as it shows that you have succeeded, Instead I just stood there hoping it had worked.
- Hold the screwdriver against the contact of the CRT for a few minutes
Pop the CRT to one side, and pack the rest of the innards somewhere safe incase we need any of it.
GLASS/VACUUM HAZARD
The vacuum tube could explode when put under pressure or dropped. Take care whenever handling the CRT. If you do happen to drop it, put some shoes on, go buy a Dyson, and vacuum everything..Be sure to keep the original screws, we use these throughout to add in the new internals.
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Thanks for reminding me, its been a while since I took those screws out, I will edit and add that to it!
(Apple dealer in 1984)