Apple II

AP-64e EPROM machine code address/write error

Submitted by Fuji on March 25, 2020 - 7:10am

I'm trying to re-program an F8 EPROM (Apple II+ clone motherboard) in order to replace the "APPLE ][" title with something else but am having problems writing (burning) the EPROM with my AP-64e EPROM programmer card and wonder if anyone can help?

An estimated guess is that I've probably misunderstood something about addresses in machine code. I've done it before, but after several decades some details in my notes are probably missing.

 

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Apple II

Joystick II (or any joystick) schematics?

Submitted by Fuji on March 24, 2020 - 5:46pm

I've searched the web without finding anything but alternative joystick interfaces or just the game connector pinout: where can I find a schematic of a standard Apple II joystick?

My Apple "Joystick II" isn't working and I can't quite figure out why (the switches and pots work) so the only thing I can think of is that a wire must have broken loose and I've resoldered it in a hurry, in the wrong place :-(

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Apple II

Seeking program desperately

Submitted by S.A.M on March 24, 2020 - 4:11pm

Hi to all, friends.

Im seeking a Apple 2e - plus for many years and i dont found it.

Im seeking at least the name of it.

Info that i know about it:

1 - A relationship program;

2 - The user input their complete name on it;

3 - The user answer questions about themes;

4 - The program cross database and compare the answers with answers from others users added early;

5 - The program show the compatilibility between users of different gender through of percentage %.

 

EXAMPLE:

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Apple II

DOS 3.3 alternatives?

Submitted by Fuji on March 24, 2020 - 5:15am

I believe there were several alternatives to Apple's DOS 3.3 back in the day, resulting in faster file-loading, more free space and other features. But after all these years away from the Apple II memory (mine that is) is lacking on the subject, so a few questions:

 

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Apple II

Copying single files

Submitted by Fuji on March 23, 2020 - 9:11am

Is it possible to copy single files between Apple II 5.25" disks?

I've looked through the DOS manual but I can only find info on how to copy entire disks.

 

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Apple II

Disk II - Drive Running but shows 0 RPM

Submitted by nauseous on March 19, 2020 - 7:44am

Hi Everyone,

Using Apple II software diagnostic tools to test a Disk II floppy drive. Interestingly trying to calibrate the disk speed the unit is returning 0 RPM (but you can hear the drive actively seeking and the red light on front of drive is illuminated). I was hoping someone might be able to point me in the correct direction of what part of the circuit is responsible for calculating drive speed.

Thanks all!

 

 

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Apple II

Vertical "rolling" from II+ monitor

Submitted by Fuji on March 16, 2020 - 7:51pm

I have a minor frustration regarding my Apple II+ clone's display output: it keeps rolling vertically and is very hard to set in place.

 

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Apple II

Apple IIe misbehaving - diags not running, no serial boot etc

Submitted by markjw on March 16, 2020 - 12:27pm

Hi All,

Got an Apple IIe which is giving various issues - history of the machine is unknown, but apart from being dirty there appears to be no physical damage to the PCB or keyboard.

Issues are:

1. Refuses to boot to the on-board diagnostics - this was working and giving a SYSTEM OK message, but now ignores the Apple keys being pressed on power up

2. With a Super Serial card installed in slot 2 and typing IN#2, CTRL-A will sometimes give the 'Apple SSC:' prompt, sometimes not returning the ] prompt

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Apple II

Can't load games using the casset Input

Submitted by Matombo on March 15, 2020 - 4:09pm

Hi,

i dug out an old ITT 2020 (apple II for europe before the europlus came out) from my dads collection of old computers.

After reseating some chips it boots just fine and basic basic-commands work.

However i can't load games from http://asciiexpress.net/gameserver/

I hear a beep at 4s of the hifi or lofi audio file but when it reaches the 9s mark i get

ERR ?Syntax Error in 49352

for the hifi file and

ERR ?Syntax Error in 803

for the lofi file

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Apple II

Apple ][+ Super Serial Card problems

Submitted by TheMadHill on March 15, 2020 - 2:15pm

Hi All!

 

I've come across this forum a couple of times and everyone here has been very helpful getting me up and running on my ][+.  The machine works, and I have been able to use the casette ports to get some disks and games.  That was a good time, so I decided to order a Super Serial Card and see if I can get that working with ADTPro.  I'm having an issue where everything that comes across on the serial port is showing up as a bunch of carats, at symbols, and slashes (^^/@@@@) etc. 

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Apple II

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