I got Apple IIc with monitor, but am having problem with using it. Computer starts ok and boot from disc drive. I have discs that say Prodos. But if I boot with those it goes to something that look little bit like machinae language monitor.. Readed manual about commands like car and catalog, but couldnt even list directory.. What should I try next..
Heard that its also possible boot to basic, how? Would be fun try those floppys..
Hmmm, could be a bad disk. To start basic, turn on the computer without a disk in the drive. Apple //c will display at the top of the screen. The disk drive will continue spinning endlessly. Press Control-Reset. The drive will stop spinning and you should now see a blinking cursor and are in Applesoft basic. To check the Kernel and Ram on the //c, Press the right Apple-Control-Reset. The screen will flash through a few test screens. If everything is well, it will display, "Kernel Ok". To boot a disk from basic, type pr#6.
To have any disk functions (such as CATALOG), you have to boot a disk with either Prodos or an earlier DOS version like 3.3 or so. Usually I just format a disk with either Prodos or 3.3 and have it autoboot when I first turn on my IIgs.
If you don't have any functional disks, use ADTPro with a null-modem cable. This is, in my opinion, the best transfer program for the Apple II. After it is setup, it has an option to automatically transfer a version of Prodos to your computer by formatting and writing it to an available disk.
PR#3 will change the computer into 80 column mode CATALOG or CAT will display the available files on disk RUN will run programs that have an "A" next to their listed name BRUN will run programs that have a "B" next to their listed name DELETE will delete the file LOCK/UNLOCK will lock/unlock a file from being deleted. You can identify a locked file when it has a asterisk next to it. Left Apple-Control-Reset will reset the computer and Autoboot the drive.
Thats right, the IIc will say that. I forgot. The IIgs does the same thing with an Apple symbol moving back an forth. Its at that point when you hit Control-Reset to enter basic. Your drive may need the head cleaned. Do the memory check as well to make sure your computer is in order.
Does the screen look something like: * FF C1 C1 FF FF C1 C1
Usually an asterisk prompt will indicate that the computer is in the machine code monitor. Another way to enter the machine code monitor is to type CALL -151 in basic. Its been a while, so I'm going from memory. Bare with me on some of the commands that I'm explaining.
I tryed it today. I can get to basic, but I couldnt run diagnostic and it didnt reset. I tryed press those keys and always end to basic. I also have external discdrive, but havent plug it to machine. Tryed with 3 discs and always end up to this screen..
Try holding down the solid (right) apple key while powering the system on. That should force it into the diagnostic mode. Start here to see if there is a memory/cpu issue with the computer. Here is a link to the Apple site on //e and //c diagnostic mode... support.apple.com/kb/TA38047?viewlocale=en_US
If everything is okay with the diagnostic, then next try cleaning the disk drive head. Sometimes they can go out of alignment. However, alignment problems are kinda rare. Another thing to do while you have the computer open is to reseat the chips on the board.
Should be. The Apple II and II+ were the only systems in the Apple II line that didn't have the diagnostics built into the rom. I'll keep searching for any other way you can start the diagnostics. The Apple support page also mentions to hold down both Apple keys while turning on the system. The article seems to be mainly focused on the IIe, however it does mention the //c on paragraph three.
If its not starting the diagnostics, there may be a problem with a rom chip. A //c is a little bit harder to pinpoint a problem than a IIe because it basically is like having an enhanced IIe with several expansion cards built into the main board.
Both Apple keys and power on did do something.. It went to black screen that has white text ´RAM 00000001000´ at middle, but nothing else happend. Tryed press keys. Before this screen there was some garbage at screen. It feels like that there is something wrong with this machine, but if only there was someone with Apple //c who could also try this.. What should happend and what I could try to do.. Wonder how it looks inside of this machine..
Okay, the diagnostics code tells me that it failed the ram test. If all went well with the test, then the screen should have said "kernel ok". On a //c board, there should be a row of ram chips on the right side of the board. Check to see if any of them run particularly hot. Here you can see a view of the //c board from old-computers.com... www.old-computers.com/museum/photos.asp?t=1&c=69&st=1
If I recall correctly, the one I had had socketed ram chips.
The blank screen doesn't sound good. Try pushing the 40/80 column switch. Another thing you can try is to reseat chip 6 and 9 (as described from the image on old-computers.com) again and start the computer without the keyboard attached. Hope this gets a better result than what happened.