Macintosh 12" RGB Display not turning on

My Macintosh 12" RGB Display (Family number M1299) from the 90s doesn't turn on anymore. When I click the power button it goes in but nothing happens. It has worked as recently as a few months ago.

Please advise.

Thanks

Earlier Mac models

Posted on Aug 7, 2023 09:45 AM

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Question marked as Top-ranking reply

Posted on Aug 7, 2023 11:12 AM

Old CRT monitors produce a lot of heat. Most issues with them are age-related due to heat making the wiring's insulation brittle and crumbly, causing short circuits.


Given that:

  • A shorted wire is a serious fire hazard and,
  • It is getting hard to find anyone qualified to work on CRTs at any cost,


...I would let that one die in piece. I cannot in good conscience recommend that anyone lacking professional credentials/training work on an old CRT due to fire and fatal amounts of electricity present. The shock hazard remains a issue long after the monitor is removed from a power source.


I work on a lot of computers both for family and friends. I can take apart most. I DO NOT work on CRT monitors because I am very fond of my wife's husband!

3 replies
Question marked as Top-ranking reply

Aug 7, 2023 11:12 AM in response to Bob_Cheese

Old CRT monitors produce a lot of heat. Most issues with them are age-related due to heat making the wiring's insulation brittle and crumbly, causing short circuits.


Given that:

  • A shorted wire is a serious fire hazard and,
  • It is getting hard to find anyone qualified to work on CRTs at any cost,


...I would let that one die in piece. I cannot in good conscience recommend that anyone lacking professional credentials/training work on an old CRT due to fire and fatal amounts of electricity present. The shock hazard remains a issue long after the monitor is removed from a power source.


I work on a lot of computers both for family and friends. I can take apart most. I DO NOT work on CRT monitors because I am very fond of my wife's husband!

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Macintosh 12" RGB Display not turning on

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