Apple II

Revisions of revisions?

Submitted by falter on February 22, 2014 - 10:42pm

Just a general interest question. Recently I learned that even within revisions of Apple II motherboard, there were sometimes mini revisions.. like the black slots on my Rev 04. I'm wondering if there are also notable changes with the other revisions that are of ajy significance? Thinking I might keep this Rev 04 board and start trying to collect all the variations I can.

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Apple II

Rev 04 vertical hold

Submitted by falter on February 22, 2014 - 12:44pm

I'm having a minor but irritating problem with my Rev 04 board. In diagnosing my Applesoft ROM problem on my RFI board, I had been swapping chips with the Rev 04 and had a situation crop up where there is no vertical hold.. the screen contents keep rolling upward. You can stop it with very precise adjustment of the vertical hold on the monitor, but of course this doesn't hold for long.

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Apple II

Repair or replacement parts for Apple II+ keyboard

Submitted by falter on February 21, 2014 - 11:33pm

I have one of the all in one keyboards for my Apple II+. I repaired a broken key stalk but have inadvertently wandered into a problem. A couple of the metal tabs broke off and Inam wondering if there is some way to repair them or if there is a way to get replacement parts. My 1 and 2 key do not work, and the key I repaired (right arrow) doesnt work either.

I did google amd search around on this but hadnt found anyone who was dealing with broken metal. Any help is greatly appreciated!

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Apple II

Apple II+ not posting

Submitted by falter on February 19, 2014 - 8:19pm

I decided to go after the keyboard issue in my II+ again. However now when I power it on, I get a screen full of this:

??@@??@@??@@??@@ etc.. with the @@s in reverse video. If I cycle the power, sometimes I get flashing > or other symbols at random spots. I thought maybe CPU, so changed that to known good, but no dice there. I know the ROMs are good and am confident the RAMs are ok... where do I begin on this one? Smile

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Apple II

Really stupid Apple IIgs keyboard compatibility question

Submitted by Eudimorphodon on February 19, 2014 - 12:20pm

A while back (better part of a year ago?) I posted about having a IIgs with what appears to be a blown keyboard controller. (And is still blown.) This weekend I was given another IIgs (also a "Woz Edition", I assume it's ROM01, and again just the system unit) which I have yet to power up. Here's the situation:

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Apple II

Apple IIe Enhanced logic board work with a PAL Apple IIE power supply?

Submitted by robbo007 on February 19, 2014 - 7:18am

Hi all,
Can anyone confirm that a US Apple IIE enhanced Logic board will work with a PAL European Power supply?

I know the Apple IIGS works without any problems but not sure about the Apple IIe.

Thanks,
Rob

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Apple II

CDA's and NDA's

Submitted by Nighthawk70 on February 16, 2014 - 4:23pm

I'm setting up my GS for the first time in 25+ years, I have forgotten nearly everything. Humbly I feel pretty dumb now, vs when I was much younger and knew a lot about my //e and IIGS. I found a bunch of old floppies that I have kept from my Apple II days and one of them has two folders on it called NDAS and one CDAS. Through process of searching my GSOS System folder I found that NDA's are New Desktop Applications (??) and they are what show up under the 'Apple' symbol on the far left of the menu bar. I copied a few in at a time not to rush anything, nor to get anything stuck.

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Apple II

Get rid of errors on your floppy disks. FIX THEM!

Submitted by insanitor on February 16, 2014 - 2:49am

Here's a little trick that I have been using since the old days...

Ever encounter a floppy disk that keeps giving you an error in the same sector no matter how many times you format it?

WE ALL HAVE!

The possible solution?

A COMPLETE ERASE.

Also known as Degaussing, it will permanently erase a disk and bring it to a state of no format.

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Apple II

Bell and Howell Apple II (Darth Vader)

Submitted by jwg1962 on February 15, 2014 - 2:26pm

Got a Darth Vader edition.

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Apple II

Apple /// display problem

Submitted by stynx on February 14, 2014 - 11:43am

My new Apple /// has a strange defect: the char-modes are corrupted but the graphics-modes look fine.

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Apple II

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