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Inleiding
Like all of the other components of the Macintosh IIsi, the logic board requires no tools to remove.
Wat je nodig hebt
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The Macintosh IIsi's hard drive is located ajacent to the ram and floppy drive.
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Start by pushing these two tabs out, and lifting the drive up.
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Then, flip the drive over, and remove the connection cables.
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The hard drive: A Quantum ProDrive LPS, made in 1990, and surprisingly, it still works!
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This drive has an 80MB capacity, not very large by today's standards, but not bad way back then...
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Believe it or not, hard drive construction hasn't changed much in the last 20 years. Other than a few new interfaces, the form factor, 3.5" width and 4-Pin 12V/5V power connector has stayed the same.
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The "SuperDrive" is mounted similarly to the hard drive, and positioned right next to it.
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Push these two tabs out, and lift the drive up.
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Flip the drive so it is on top of the power supply, and remove the "Red-Ribbon" cable.
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This drive was manufactured by Sony in 1990.
Excellent pictures and easy guide! Thank you very much. My IISI floppy drive started flawlessly after 25y and the disk could be read. however it did it just once. Then I could not eject it any more. It did not work anymore. Can I replace it with a Sony MPF 920E? What type of cableadapter do I need
Generally these old Macs only work with Apple style floppy drives, they use both a different cable and signaling standard than PC drives. If your drive isn't ejecting your best bet is to either replace it with a similar 1.44MB "SuperDrive", or service the drive. There are some good videos floating around the web about how to repair and maintain these old drives, and it isn't actually too hard to disassemble and clean them.
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The fan recieves power from two contacts on the logic board and has no connector.
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In all of the years that I have worked on this machine, I have found no good way to remove the fan.
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The best way to start, is to push in here on the side of the fan.
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Being careful not to exert too much force, try to push in, and wiggle the fan outward as such. (2nd Photo)
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You can now lift the fan all the way out, and remove it.
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The Fan Power Contacts on the Logic Board:
There is no need to pull out the fan. Just take a knife and you can squeeze the tab in step 7
I wanted to second what Willy said; as far as I can tell one is intended to remove the PSU before the fan. You just jam something the right width in between so the PSU tab is depressed, pull it out, and after the PSU is out removing the fan is easy.
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To remove the power supply, squeeze these two tabs and lift the front up.
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On the back of the power supply, there is a tab that also must be pressed to remove the power supply fully. You can then lift it out all the way. A firm tug may be necessary to seperate the power connector.
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The logic board is designed in a way, where it can be slid forward, then lifted out.
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To remove the board, push these two tabs outward, and begin to slide the logic board away from the back (Port Side) of the computer.
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Once the logic board clears the ports it can be lifted out.
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The Processor: 20Mhz Motorola 68030 model # MC68030RC20B
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The Onboard RAM: 1MB Soldered the the logic board.
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RAM Slots: 4 30-Pin DIMMs installed in pairs.
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ROM SIMM Slot: If your computer doesn't have one if these (and it works) , it doesn't need one. If it has one, it needs it in order to boot.
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PDS Slot: For Attaching a riser card containing a math co-processor. A PDS card can then be plugged into the riser card. PDS - Processor Direct Slot
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Power Supply Connector: for direct connection to the power supply.
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"VSLI" chip: This machine's equivalent of a "Northbridge" It manages RAM, PDS, and the external ports.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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Ano Niem -
Our convenient Mac smaller than expected rationale board expulsion apparatus in fact fits in the rationale board's screw gaps, however it doesn't feel right. We will require more use. Might it be able to be that some great antiquated thumb squeezing works? It does! A firm push on either side of the blower exhaust is everything necessary, and the entire board unclips and slides out. As much as we cherish making incredible apparatuses, nothing makes us more joyful than seeing something you can benefit without any devices by any stretch of the imagination Apple service centre gold coast