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Replacement CRT Tube of an Apple Macintosh SE/30

Macintosh SE/30 CRT Ghost Image

As you can see from the first photo i had to replace the cathode ray tube (CRT) of a Macintosh SE/30 because has a “ghost image”.

The replacement is very simple but you have to replace also the deflection yoke because the yoke connector is different between Classic and SE/30.

The replacement of the deflection yoke obviously also involves the calibration of the image. The calibration of the image is not  simple and should be done with the computer on. Be careful there are very high voltages on the cathode ray tube (CRT).

Gallery of the replacement:

  1. September 5th, 2015 at 14:44 | #1

    How do you calibrate the display? Is there any literature online with instructions? I need to replace my SE/30 screen as it has the same issue as yours, I have a donor Mac 512K for the CRT but am unsure on how to calibrate.

  2. Marco
    September 13th, 2015 at 13:51 | #2

    Well done!
    An interesting side catch is the beer in the pictures of your projects: one time a can, another a bottle, … What’s your favourite type? ;-)

    Ben fatto! Ma la cosa interessante nella documentazione dei tuoi progetti é… la birra: una bottiglia o una lattina compaiono spesso nelle foto. Qual é la tua birra preferita? Bionda o scura?

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