Apple II

Clone keyboard EPROM -data intact?

As explained in another thread (partly working keyboard) I've tried replacing all the ICs and electrolytic capacitors of a clone keyboard to no avail. The only semiconductor left to try is the EPROM which I have no idea what does or what it contains. NOTE: the keyboard encoder is the replacement. The original one is marked:

KR3600-017

SMC  8301C

KR3600-PRO

 

The replacement (AY-5-3600-PRO) should be a fully compatible replacement.

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Apple IIGS Ejects 3.5 Disks On Startup Why???

Hi I just recently went to use my IIGS after not using it for about a year and for whatever reason when I try to boot a 3.5 disk on startup using a 3.5 800k drive A9m0106 it lights up for a second and then kicks out the disk a second later. I have tried this with 2 seperate 800k drives not connected to eachother (The ones with the daisy chain connector on back by the way) and it always just kicks the disk out right on startup.. Why so? I dont remember even having this problem before.

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Looking for a IIGS case (PSU/Keyboard/Mouse)

I have a ROM1 IIGS motherboard & 1MB RAM expansion card so far in my quest to build my own complete IIGS system.

Any assistance would be most welcome.

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Apple /// Computer repair

So I recently came into posession of an Apple /// computer and have been trying to restore it--the power supply had broken but that was repaired, now when booting it up I get a jumbled mess of pixels.
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Apple II plus Update with apple works.

So after messing around. I got an Applied Engineering 80 column card. Took me a sec. to find the correct apple works modifier program disk from AE. Got it booted and for a split sec. (I could enter the date.) it was loaded. Then is crashed. Also said I only had 10k available too. It crashed because I was using a vsdrive and running programs is a pain. Still saving up for a floppy emu and disks. Also another drive. Yes, I know the in place floppy sd card will work fine. Just something fun about using diskettes.

 

TTF,

 

Josh

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Apple IIe random vertical lines and no beep

Hi!  I recently got an Enhanced IIe from someone who was getting rid of it and I've been trying to coax it back to life.  I have had a II+ for years and, except for a power supply failure, it's been rock solid.

 

Anyway. the IIe had a blown power supply, so I tempoararily swapped in good (ReActiveMicro) one from my old Apple II+.  On first powerup I get a blank screen with no beep.  Turn it off and back on and I get random vertical lines.  I say random because I can turn it off and on again and get another variation on those lines.  Here's a picture:

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Apple //c Powers on but not usable

Hello, I Recently got a new-to-me Apple //c but upon powering it on it displays a garble of flashing characters.  I've already re-seated the IOU, MMU, CPU and MON, as well as the Power Supply and Character Generator.  I've attached pictures of the monitor as well as the components.  Everything is in really good condition and I've confirmed that the external Power Supply and Monitor are working on another system.  Looking for advice before proceding.

https://i.imgur.com/Vp2dc7a.jpg

https://i.imgur.com/eBjlTFi.jpg

 

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MPC AP-SIO info?

I acquired an Apple IIe  enhanced and it came with an MPC AP-SIO card installed. It has a DB-25 connector on the other end of the ribbon cable. It looks like a clone serial card. I can find reference in on-line copies of Byte magazine and google books to the IBM-SIO card and to other MPC cards but not this one. Anyone familiar  with these? Anyone know the dip settings?

 

Thanks.

 

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Early IIe

Bought this today.  I am wondering if anyone else out there has an early (sub-5000) IIe for comparison purposes.  I'm very curious about the story behind the serial numbers.   The serial on mine is 'A2S2-1320'.   As we all know, A2S2 is the prefix for the II+.  I'm curious if someone messed up in the beginning.  Did they simply add a 1 to the prefix (1A2S2) as a quickie fix for that mistake?  I'm assuming they wouldn't have intended to have two Apple IIs with the same serial number.

 

https://drive.google.com/drive/folders/1bXGr9PtG_weFU9pkAN_odoZnM-t4afnC?usp=sharing

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