Apple II

Early Apple IIc with serial port timing issues

Submitted by Divarin on January 9, 2022 - 7:31am

Hi all, I have an Apple IIc that seems to have the serial port timing issues described here:

https://en.wikipedia.org/wiki/Apple_IIc#Serial_port_timing_fix

I found this post here on apple fritter (many years old):

https://www.applefritter.com/content/c-74ls161-ttl-oscillator-fix

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Apple II

Apple ii plus keyboard - letter A stopped working

Submitted by warby on January 8, 2022 - 9:26pm

My dad recently gave me the original Apple ii plus that he bought and I learned to program on. It wouldn't boot and after some troubleshooting, I found the highest range of RAM had a bad chip. I replaced the entire bank of 8 chips (as I saw was recommended on one of these forums) and it worked!  I bought some new 5.25" floppies and was able to create some new disks using the Apple Disk Server (awesome resource!) The power suplly is working but I proactively ordered a capacitor replacement kit.

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Apple II

Duodisk and Unidisk Drives Red Light Constantly Stays On

Submitted by mbc230 on January 8, 2022 - 3:24pm

Hello,

I am new to this forum and I have had issues with two disk drives that I have. They are doing the same thing. The first one is duodisk drive and the second one is a unidisk drive. No matter what Floppy I put in either drive the Red Light just stays on and the disk drives just spin. These are things I have tried. See below:

1. Tried different typed of disks (Originals and Copies - No Change For Both Drives)

2. Tried Two different controllers (No Change For Both Drives)

3. Tried a known working controller on a working machine (No Change For Both Drives)

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Apple II

Apple IIGS & GS/OS 6.0.1

Submitted by clamm on January 7, 2022 - 5:28pm

Hiya Fritters,

 

I've got an AppleIIGS ROM 01 with 512K of total RAM via an original Apple RAM board (with 256K on it).

 

When I put the disk for the GS/OS 6.0.1 it attempts to load and then makes a "beep" sound about midway through the progress bar and then stops reading the drive and stays stuck at the fully-loaded bar. No icons appear at the lower left corner.

 

Is that "beep" sound telling me that I don't have enough RAM to run GS/OS?

 

Thanks everyone for your insights!

 

~

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Apple II

Apple II c repair keyboard and check disk driver error

Submitted by Giordix on January 7, 2022 - 8:24am

Hi all,

I'm new in this forum and I want to say hello to all and sorry my bad english!

I'm trying to repair an Apple II c computer that was stocked in my house for many years. When I stocked it, like 15 years ago, it works without no problem but few days ago I have reconnected it and I have discovered two big problem:

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Apple II

Disk II Sleeves

Submitted by saint on January 6, 2022 - 7:52pm
I needed some sleeves for floppies. I stole the template from an Atari Post and added the Disk II Logo
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Apple II

Memory issue with Apple 2E?

Submitted by Roger the Brit on January 6, 2022 - 4:15pm

I was recently given an Apple 2e and an Apple 2GS, together with their monitors and 2 5.25 floppy drives for the 2e. I also have what I believe is the original software and manuals that came with the 2e. Using the manuals I got the 2e started and ran the self test. It immediately returned the word RAM and stopped running. After trying the test again I got the same error. I then put in the DOS 3.3 disk 1 and restarted, the drive appeared to go through the motions, but after several minutes there was still nothing on the screen so I did Command, Reset to stop the disk.

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Apple II

Easiest way to program Apple in 6502 from Windows?

Submitted by Kingpin on January 5, 2022 - 10:57am

You guys who program your Apple, how do you go about writing sourcecode in Windows for the Apple (in 6502 assembler that is)?

 

What is kind of "best practise" to lift sourcecode from Windows into say Merlin and assemble?

 

Transfer files in some way (is there a utility which can create DOS format image files (.DSK) for example?)?

 

Copy and paste through an emulator?

 

Use an emulator to write and test with as well?

 

TIA!

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Apple II

flashing colors in games on Apple IIgs

Submitted by guibrush on January 5, 2022 - 8:26am

Hello everyone and happy new year!I have a question about games specific to the Apple IIgs. I have colours flashing on the screen when I run several games, like Lemmings, Wolfenstein3d or DejaVu. I first thought it was my TranswarpGS, my RAM expansion or my computer itself, so I tried it on another IIgs, with the same result.

 

https://imgur.com/w2HrKpg

 

Then, totally by chance, I found a program called GC.noSS.SYS16, which, when I run it, trash the screen.

https://imgur.com/9QK7ojz

 

 

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Apple II

Apple IIe Motherboard PCB Files

Submitted by saint on January 3, 2022 - 1:50pm

I realize there is a PCB file for making an Apple II motherboard, is there a reason for no IIe out there other than no one has put in the effort? Like some non expired copyright issue.

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Apple II

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