Apple II

Disk II rainbow ribbon cable color pinout

Submitted by hackerb9 on March 22, 2023 - 1:23am

Hi everyone,

I'm just doing a simple 20-pin IDC cable replacement for an old Disk II drive clone (technically a "Fourth Dimension Super Drive") and for fun wanted to use a pretty rainbow colored ribbon cable, like what the older Disk IIs used. But, Wikipedia's entry for the Disk II pinout colors seems to only cover the 19-pin Unidisk-style connector, so the colors for pins 17, 19, and 20 are likely incorrect. I'm guessing they should be violet, white, and black, respectively. Can anybody confirm that?

 

Forums: 
Apple II

Jailbars/vertical white lines on Apple II plus

Submitted by DerpymanMT on March 21, 2023 - 4:09pm

Hi, I have an Apple II plus that only displays vertical white lines. Ive tested almost all the chips with my TL866 II plus programmer besides the 9334 chip. Ive tested with only the Autostart rom, nothing. Ive replaced sockets, replaced the CPU, and still nothing. CPU is attempting to do something, and has the right clock speed.

 

I have no clue what to do next. Im new to Apple Computers, but familiar with retro computers and their operations. No beeps, no clicks, nothing.

 

Im unable to test with my logic analyzer due to it being broken.

Forums: 
Apple II

AdvSkel65 bug in score board: room in wrong place?

Submitted by Harry Potter on March 21, 2023 - 8:18am

Hi!  I am pretty close to getting my AdvSkel65 program ready for the next release.  I cleaned up the source code, removed a lot of unnecessary or redundant code and performed other optimizations,  Right now, I am in the middle of debugging it.  The current bug is that, while printing the score board, the room is displayed in the wrong place: it starts st the right-most character of the screen instead of the far left.  In my A2SimpleIO library, the tabx variable points to the current X cursor pos.

Forums: 
Apple II

The Unitron U-2200 Lives Again

Submitted by Stargeezer on March 18, 2023 - 4:02pm

Hi Neighbors,

Well it's been a time since I was on the site.  I was busy retiring from one career and starting a new one with a penetration testing company.

Forums: 
Apple II

Replacement keyboard for Franklin ACE 1000

Submitted by cryu on March 18, 2023 - 1:00am

The keyboard on my Franklin ACE 1000 suddenly started having dead keys.  Working through the troubleshooting checklist in the SAMS guide, it became clear that the special capacitative-keyswitch IC had fried.

 

As a replacement IC doesn't appear to be available, I designed a replacement in KiCAD that uses CherryMX keyswitches and osiweb's Unified Retro Keyboard ASCII interface.  I've yet to source proper replacement keycaps, so I'm using a random set I found on Taobao, but it is otherwise working well.

 

Forums: 
Apple II

Invulnerability Patch for Apple II "DROL" game

Submitted by UncleBernie on March 15, 2023 - 11:13am

MOTIVATION

 

While working on my "Sprite Thief" program, I found "DROL" in the higher levels to be too difficult for my reflexes.

 

Forums: 
Apple II

cc65 text adventure code updated!

Submitted by Harry Potter on March 13, 2023 - 9:18am

Hi!  Earlier today, I published a new release of my AdvSkel65 program for cc65.  It is a text adventure skeleton code around which one can build a text adventure.  Two of its targets are for a 64k or 128k Apple2enh using ProDOS, but it also supports CBM and Atari XL computers.  It is at c65 additions - Manage /game at SourceForge.net.  Also there is a low-end version, AdvSkelVic65, but it doesn't support the Apple2.  Try it out!

Forums: 
Apple II

How to submit Apple II disk image to Asimov

Submitted by old_hitech on March 11, 2023 - 5:36pm

I would like to submit/post a couple of Apple II disk images to Asimov. It is an Avalon Hill golf game from 1983 that I believe is able to be posted (no issue with copyright) given there are many other Avalon Hill game titles already posted on Asimov. What is the process to get this accomplished?

Forums: 
Apple II

Apple IIc dead Voltage Converter

Submitted by CheshireNoir on March 10, 2023 - 9:11pm

Hey Folks,

I have an Apple IIc here with a dead Voltage Converter. (Not the external PSU, the internal card that slots into an edge connector).

The system is not booting with it in, but thanks to having a spare, I know the problem is the Voltage Converter, not the system itself.

I'm trying to find details (Pinouts etc etc) on this unit so I can start troubleshooting it.

It's not the same one as in the SAM's guide to the Apple IIc, to make things difficult. 

I'd even settle for just a pinout of that edge connector...

 

Forums: 
Apple II

Apple II Europlus garbage boot screen

Submitted by guibrush on March 9, 2023 - 1:05pm

Hi

I'm trying to revive my old Apple II Europlus, but I have a trashed boot screen when I power it up. The speaker make the startup bip, but then it halt there. Eventually, some random noise happen in the speaker. Does this screen mean something, or it's just trashed?

 

Thanks :-)

Forums: 
Apple II

Pages

Subscribe to Apple II