Apple II

Undocumented Apple IIgs ROM Found

Submitted by Whiskey Tango F... on September 13, 2023 - 4:12pm

Hello there- found this forum while searching around. I recently purchased a GS logic board, still sealed in its electrostatic plastic. It seems to be a stealth board, actually. Anyway, I noticed the ROM chip has an IC number that doesn't match anything I've found online. ROM0 is 342-0077-A, ROM1 is 342-0077-B, and the ROM3 chips have their own separate set of numbers. Well, this chip happens to be 342-0077-C. If "9235" is the datestamp of the chip, then it would have been manufactured in 1992, after the ROM3 was released.

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Apple II

Apple IIGS display problem

Submitted by Wawavoun on September 13, 2023 - 2:38pm

Hello there,

I have an Apple IIGS connected to a lcd tv via the scart (peritel) socket.

With other computers (for example Apple IIe + Chat Mauve or CPC6128) this socket is ok.

I get the the subd15 to scart cable from England on Ebay.

The problem is that sometime the tv loose the vertical sync.

The display is stable and perfectly looking for some seconds and then he start to slowly move vertically then stabilize again and so on....

I carefully check and move the cable searching bad contact but everything look good.

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Apple II

Apple Disk II drives non functional. Q’s about belt replacement.

Submitted by NebulaBC on September 11, 2023 - 1:44pm

I recently posted to the IRC and was told that this would be better for the fourm.

 

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Apple II

Looking for a keystem for a 605-4115-0 keyboard

Submitted by mochatea396 on September 9, 2023 - 1:53pm

Hello group,

I've come across a ii plus keyboard thats dirrerent than I'm used to.  It doesn't have removable key switches.  It does however have a snapped stem. I carefully was able to remove  the broken stem and pick out the remains in the keycap. Would anyone have one of these stems they could part with? I'm working with someone, if all else fails, on possibly making a copy of an undamaged stem with a 3D printer.  Any help will be appreciated.

Thanks

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Apple II

Help using/fixing Apple // europlus

Submitted by tony359 on September 9, 2023 - 5:02am

Hi all,

 

I'm trying to prepare an Apple // europlus for a small local no-profit museum so visitors can use it. 

 

I am familiar with Apple //e and I am a bit lost here.

 

I understand the original Apple 2 did not auto-start so you had to type PR#6 to boot from floppy. However, ROM F8 is 341-0020-00 which I understand it should be the auto-boot one.

 

The other ROMS are

341-0015-00

341-0014-E8

341-0013

341-0012-00

(D0 is unreadable from the pic I have)

 

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Apple II

Bobbin: new Apple II emulator, aimed at accelerating software development

Submitted by micahcowan on September 9, 2023 - 2:51am

bobbin.png

an image showcasing bobbin in simple I/O mode, and in a curses display

Bobbin is a "highly hackable" Apple ][ emulator, aimed especially at improving productivity for devs of Apple ][ software by offering convenient terminal-based interface options, redirectable "standard input and output"-oriented options, and custom-scripted, on-the-fly adjustments to the emulated machine.

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Apple II

Anyone cloned the Apple II Mouse Card

Submitted by BusError on September 8, 2023 - 8:22am

Just wondering, something that could take a real serial mouse and/or PS2/USB etc -- shouldn't be too hard given the most excellent cards that are being developped all around!

 

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Apple II

Apple IIGS and adb keyboard + mouse problem

Submitted by Wawavoun on September 3, 2023 - 3:49pm

Hello,I have some problems getting a mouse working on a Apple IIGS.

The keyboard has two adb connectors one to the left, another to the right.

First I notice that if I connect the keyboard to the cpu with the left connector it works. He dont work if I use the right connector.

Its my first contact with a IIGS so I say to me its strange but okay...

Then I connect a mouse (works well on my Powerbook 100), of course to the right adb connector. The mouse work (move if I move it) but also do over reaction and erratic movements and is unusable.

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Apple II

Question on 5.25" drives

Submitted by TimCross on September 2, 2023 - 10:28pm

I have two slim 5.25" drives.  One is from a Laser 128, the other is a Maple drive.  They both seem to basically work (drive spins, light comes on) but the stepper motor doesn't move the head.  When off, I can manually move the heads without issue.

 

On the Laser drive, if I slide the head back to track 0, Copy2Plus can verify track 0 but then cannot advance the head for the rest of the tracks.  The Maple drive's head can also move but I can't get it to read track 0.  Maybe that head is dead.

 

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