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Mac Plus screen repair
- Thread starter daniel-b
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thanks for reply, is a clicking rhythmic sound every time i turn on, but the screen and the floppy drive don´t do nothing.
Could be a few things. Do you have experience with switch mode power supplies ?
Is there an ozone smell associated with it ?
How often is the click ? Or can you record it? (sorry to ask again, I'm trying to tell if it's the floppy drive ticking or if the PSU is shorted somewhere).
Ultimately, you have two options. A multimeter and a soldering iron will most likely be essential, and require special long-shaft torx opening tools.
Or, find somebody who does component level repair (soldering skills), and is familiar with undocumented switch mode power supplies. Try TV repair shops (if they exist). If not, then I'm happy to help, but via forum id somewhat limited.
On the rear label it should also denote it's mains voltage (ie 220 or 240V AC). If so it will require the international circuit part references, rather than the more common 110VAC Only version.
Is there an ozone smell associated with it ?
How often is the click ? Or can you record it? (sorry to ask again, I'm trying to tell if it's the floppy drive ticking or if the PSU is shorted somewhere).
Ultimately, you have two options. A multimeter and a soldering iron will most likely be essential, and require special long-shaft torx opening tools.
Or, find somebody who does component level repair (soldering skills), and is familiar with undocumented switch mode power supplies. Try TV repair shops (if they exist). If not, then I'm happy to help, but via forum id somewhat limited.
On the rear label it should also denote it's mains voltage (ie 220 or 240V AC). If so it will require the international circuit part references, rather than the more common 110VAC Only version.
One thing I think I can see (after fighting googledrive) is possibly a darkened Horizontal Output Transistor heatsink. It may have a purple/blue tinge to it.
If this is the case, you will need a new transistor and a new Flyback Transformer at a minimum.
If this is the case, you will need a new transistor and a new Flyback Transformer at a minimum.
Hi guys!
My English isn't very good, so please excuse me if i make any grammatical errors or typos. I need some help. I got a Mac Plus, and its electrolytic capacitors were changed on the analog board, the connection ports were resoldered/had new soldering. There were no problems with the soldering. So the problem is that when the mac heats up, the displayed pictures and other sorts of things stretch out of the screen. After i turn it off, and give it some time to cool down, the resolution turns back to normal, but as it gradually starts heating up, it goes right back to stretching out again. I couldn't find any solutions on The Dead mac Scrolls, so any help is appreciated. I put some tape on the screen to indicate displayed image's edge should be.
My English isn't very good, so please excuse me if i make any grammatical errors or typos. I need some help. I got a Mac Plus, and its electrolytic capacitors were changed on the analog board, the connection ports were resoldered/had new soldering. There were no problems with the soldering. So the problem is that when the mac heats up, the displayed pictures and other sorts of things stretch out of the screen. After i turn it off, and give it some time to cool down, the resolution turns back to normal, but as it gradually starts heating up, it goes right back to stretching out again. I couldn't find any solutions on The Dead mac Scrolls, so any help is appreciated. I put some tape on the screen to indicate displayed image's edge should be.