Recent content by DontFryTomato

Thank you for your advice. Replacing the cable solved the problem.

Thank you for your advice. Replacing the cable solved the problem

Thank you again for your valuable opinion. I will think long and hard about whether I should continue. Speaking of rubber feet, what is the best way of affixing one that has fallen off? It keeps falling off (again and again). Unless properly and timely instructed, I confess I will start buying...

Thank you, VERAULT kindly responded to that.

I certainly appreciate the vigor! $7.25 wasted, and returns are not free..

In all seriousness, I am curious to know how to do it. Still, I don't think I will reuse this one because the insulation is also damaged on the opposite side, with bare wires visible. There were mouse droppings in the case... And so, I ordered a brand new 26-pin ribbon cable.

I bet connection 1 is blue, correct? I think I need a new ribbon cable (please see the image). Are they standard? I do not see any specifically for apple ii on ebay but there are many generic ones. Thanks a lot for the post.

Sorry for being unclear. I took the keyboard off and for each key tested the two pins for resistance using a meter. For all the keys the resistance was infinite when not pressed and close to 0 when pressed. This included the A and Z keys that do not work when the system is on.

Hello everybody, I have an apple iie that I am very slowly restoring. I just discovered that the keys A and Z do not work (meaning nothing is printed when you press them). The rest of the keys are fine. Furthermore, there is continuity for all the keys when pressed, including the A and Z. This...

I tried to connect to my apple iic from a Linux machine via a null modem coupled to a USB cable, with no success. This was because the USB cable was not suitable. Once I got a hold of an older PC with a serial port (for $20), connecting directly worked right away. My USB cable was from Best buy...

Dave, many thanks for the detailed post and the article. After reading it I thought the controller is generally doing what it is supposed to do: finding track 0 and trying to read from it. I did not know that the ROM size is only 256 bytes, which explains the absence of any code that would...

And here is the prompt. There was one faulty memory chip. The self test returned "kernel ok". Thanks for all the suggestions. The next issue is probably the disk controller. On start-up the 5'25 floppy makes the correct "seeking" sounds but never stops spinning, no matter if there is a floppy...

Thanks for the advice. It looks like I have the early version of the main board (1982). The RAM chips are socketed, I reseated them all without any changes. I have two replacement chips on the way... I also reseated the CPU and all the ROM chips - no changes... and broke one decoupling...

HoJoPo, thanks for the advice. I tried to run the self test, but there were no changes reflected on the screen, so I do not know if the self test even started. I also turned the system off and turned it back on while holding the open and closed apple keys (this also should initiate the self...

Hello everybody, I just got an Apple lle that does not boot. I've read about the garbage screen problem, including here, but what is on my screen (attached) is a systematic pattern, which also includes "Apple ll". The pattern does not change after power-cycling. The computer initializes (there...