Model Acbel API4ST03
Apple iMac power supply (2007 model, Core2Duo, 512MB RAM).
I made the grave mistake of working on this iMac while it was off, but still PLUGGED in.
These PS don't have any metal shielding, they're mounted with the solder-side up, the LCD panel screws in on top of it. (there's a black rectangle of insulating paper adhered to the back of the LCD).
As I was reassembling the thing, the top-left corner of the screen's metal frame touched something on the Power PCB. I heard a very faint buzzing, so I lifted the Lcd out again.
The weird part is, it took a few seconds to happen, but then a spark emited from the area I circled!
I'm guessing ESD is to blame. Is there any hope for repair?
The system won't turn on at all now. I tested the smd resistors in that part of circuit but they all seem OK, not shorted. There's an SMPS IC above the area that sparked. I'm looking for a sch for it right now... will post the results soon.
Apple iMac power supply (2007 model, Core2Duo, 512MB RAM).
I made the grave mistake of working on this iMac while it was off, but still PLUGGED in.
These PS don't have any metal shielding, they're mounted with the solder-side up, the LCD panel screws in on top of it. (there's a black rectangle of insulating paper adhered to the back of the LCD).
As I was reassembling the thing, the top-left corner of the screen's metal frame touched something on the Power PCB. I heard a very faint buzzing, so I lifted the Lcd out again.
The weird part is, it took a few seconds to happen, but then a spark emited from the area I circled!
I'm guessing ESD is to blame. Is there any hope for repair?
The system won't turn on at all now. I tested the smd resistors in that part of circuit but they all seem OK, not shorted. There's an SMPS IC above the area that sparked. I'm looking for a sch for it right now... will post the results soon.
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