Apple II

Looking for advice on a hanging IIGS

Hello,
I’ve been trying to diagnose a hanging IIGS.

Symptoms:
After 30mins of play, my IIGS hangs. The screen freezes and a ctrl-Apple-reset goes to a black screen, no boot sound. It never drops to monitor like I think a random crash should do. When I power off and on, the screen shows colored checker board. After sitting off for 10-15 minutes it works again. This is with the chassis closed, and display on top, e.g. hottest config.

With monitor on the side, and chassis open, it never hangs, it has to be an overheating problem. My first thought is PSU.

Forums: 

Applesoft II Blue Book dated May 1978

Does anyone have any info or history on the Applesoft II Blue Book dated May 1978? I have a Xerox copy of this manual. All I can find on-line is the August 1978 version.

Forums: 

New Saturn 128k compatible cards

I was reading a recent post about desirable cards and I noticed the Saturn 128k card was one that a number of people want.

Perfect timing because I have just completed the design for a reboot of the Saturn 128k memory card and they are much cheaper than current offerings I've seen.

I'm offering bare pcbs with gold plated edge connectors for US$10 plus $3.50 postage.
A download link for the GED files needed to program the GAL will be provided those that purchase a board.

PM me for my PayPal details if you want to order.

Forums: 

Enhanced II or II+?

I searched a little online and couldn't find where anyone had done this before. I did find where someone upgraded to 65c02 and had to replace a couple of chips to get the timing right.

Anyway, Apple never had an "enhancement" kit for the II? Could you upgrade the CPU and replace the ROMs with //e ROMs and get it to work? Nobody every tried that? Smile

Forums: 

Vintage Computer Festival West XIII

Vintage Computer Festival West XIII is this weekend (Aug. 4-5) at the Computer History Museum (Mountain View, California).

The hours are Saturday 9am-6pm and Sunday 9am-5:30pm.

You'll find dozens of hands-on exhibits of historic computing gear, lectures, a consignment booth, museum tours, and more.

Proceeds benefit Vintage Computer Federation, which is a 501©(3) educational non-profit organization.

Event details are at http://www.vcfed.org/vcfwest.

Forums: 

Error Running Test Drive 2

Hey I'm trying to run the Apple IIgs version of Test drive II on the Apple IIGS emulator Sweet16 on my Mac
I've download multiple versions of the disk images online, but no matter which version of the TD2 Master disk I try I get this error "Error 004C" which means "end of file encountered"
I've Attached a picture of the error screen. What do I do?
If anybody has an idea on how to get Test Drive II to run correctly, please let me know.
Thanks.

Forums: 

AppleBasic Decompiler?

Hi,

Does anyone know a way to decompile an AppleBasic BIN file?

I have Cider, if that helps? I am trying to find a way to port Mystery House (which is in the public domain) to the Commodore 64

Thank you,
Will

Forums: 

ROM file for Apple //c french keyboard

Hello Everybody,

I bought lately an Italian Apple //c and I'd like to switch it into French.
I've found the French video rom : 342-274A, but impossible to find the keyboard map rom !
I can't even find its name !

If some of you have a French //c, I will be very pleased if you could dump this famous rom, or at least
give me its number ...

Thank you in advance...

Forums: 

Apple II and 3.5 Unidrive Issue

Good evening and thanks for letting me join the group.

Forums: 

How to open Apple II DSK files on Windows

Hi Guys and Gals,

I would like to try to decompile the Mystery House DSK file (Mystery House is in the Public Domain) to view the source code.

What is the best way to preform this? Note: I am on Windows 10.

Thank you,
Will

Forums: 

Pages

Subscribe to Apple II