Apple II

Unitron 2000 keyboard

I have this exact keyboard here.

Some years ago, while I was trying to trouble shoot problems with an A2S1 not typing, I tried using it there and something must have blown up, because after that it wouldn't work with anything.

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Apple IIc+ Disk Problem

I'm working with a user in Europe to debug an Apple IIc+ that he purchased from me. When I had it, it powered up and generated video, but the disk operation was untested. It had been in storage for an extended period of time, and I never had any disks for it to use for testing.

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Focus IDE HD Broken?

I purchased a Focus Drive a number of years ago and finally got to installing it. I keep getting an error reading the drive, there is little information I can find, and cannot even verify if the card supports this drive or if the drive is even the original one. Since it was crated in 1998, it should support it, but I do not know enough about the chips or software.

Could anyone lend some insight?

https://www.facebook.com/photo.php?fbid=10213854786417844&set=gm.2239685006058653&type=3

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Disabling a card to free up a virtual slot.

Hi all,

Somehow this posted without the message.

I'd like to be able to assign my CFFA3000 virtual Disk ][ to the same slot as my real floppy drive controller. That way I could switch betweem the two without opening up the computer. At first I thought to cut the Ground trace on the card, and wire in a switch to turn off the whole thing. However, I am wondering if it is possible to disable the physical card with a machine language routine?

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Help! First time Apple IIe user.

Hello everyone,

I just bought an Apple IIe platinum from an antique shop. It turns on and I know that the ROM works because we loaded up a program they had. I brought it home and power it on but can't get anything to happen. I turn it on and get this screen but nothing else works. Please help me figure out how to work this machine. Every video I watch does not have this issue.

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Graphics Error in II Plus

Hello!

In the past few weeks, I acquired an Apple II Plus that seems to have a graphics error. Whenever I attempt to boot the computer, vertical lines appear instead of the normal startup screen. I don't know if a chip is fried or what. I've added a high resolution image of the motherboard below for reference. Any help is appreciated!

Thanks
Kevin

P.S. - I should add that I'm an amateur when it comes to pre-mac era Apple machines and this is my first Apple II.

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IC question

Hi I am fairly sure these questions have been asked before, but I am unable to find the correct thread.
I am trying to find the parts for an empty (totally stripped Apple IIe motherboard). I have questions about to chips. I am reading the Apple IIe Repair Guide by Double Density on A2OL, in the inventory list they mention IC MC741 (OpAmp) in location A11, is this the correct chip, or can it be replaced my an LM741? I know I will most likely not ever need it, as it is the amplifier for the cassette player, still I like the board complete.

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Apple IIGS ROM03 with "Turbo->28"

Hi, all

Any one has idea on Apple IIGS ROM03 with boot screen first line "Turbo->28" rather than "Apple IIGS"? Is it an early ROM03 unit, developer unit or?
I couldn't find any information from the web.

Thanks,
Michael

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FPGA Apple IIGS - Latest 2018 news?

To date, how far has an Apple IIgs FPGA or core for any FPGA platform come to fruition?

I must say I have great fun with the MIST Apple IIc core. I wish it got an update for write support or GS features.

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New ProTerm BBS Game

I thought I had submitted this a day or so ago, it looks like I goofed something up, so I will try again. Smile
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