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CWJ_Wilko

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  1. CWJ_Wilko

    Apple M1296 12" RGB: Loud bang

    I've added about eight times as much solder to the four points of the switch and cleaned up with isopropyl, and so far everything is working great. Will have to recap another time. My running theory is that the solder joints were already weak from pushing the switch in and out, and eventually were weak enough to cause the failure. Some oily type goop has built up around the switch, which may have also contributed. More unlikely is that an insect happened to make residence in there, and got vaporized, or some other conductor happened to fall into the right spot...
  2. CWJ_Wilko

    Apple M1296 12" RGB: Loud bang

    The fuses are good, and I came to the same conclusion that you did, it seems unlikely that something went bad downstream, but didn't blow a fuse at the same time. The problem seems to be before the fuses, and the switch is the only component before the fuses. Not to say that the rest of the monitor isn't 'bad', I'm sure there's a lot of restoration to be done!
  3. CWJ_Wilko

    Apple M1296 12" RGB: Loud bang

    Above it is the main power switch. Will be checking it carefully. Also will recap for sure, but might have to wait until after Christmas
  4. CWJ_Wilko

    Apple M1296 12" RGB: Loud bang

    Yes this is the Macintosh Color Display, 12". Pretty sure its M1296? The bang happened as soon as I pushed in the power switch. Got the case off easy enough. There are clear scorch marks and bad solder joints on the power switch. The scorch marks are only on the solder side of the board, not on the component side. Capacitors look okay. I'm not sure what happened first, the 'bang' or the bad solder. Could the switch itself have failed? Or is there something else happening downstream?
  5. CWJ_Wilko

    Apple M1296 12" RGB: Loud bang

    Powered on my M1296 CRT this morning and bang, a visible bright spark from underneath the case and a tripped breaker in the house. Does anyone know what this is likely to be? I'm willing enough to go ahead and start cleaning and recapping, but don't want to bother if it's something more serious (flyback etc). Can't see many (any) reports of this happening.
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