68kMLA Classic Interface

This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.

Click here to select a new forum.
Error 01FA00
Posted by: El reeko on 2018-09-24 16:55:11 Hi everyone! I have an Macintosh Plus with analog board U.S. version and i have this error code 01FA00, I can not find information about this error. I opened the computer and only found a burnt capacitor (C 39, 0.1uf - 250v). already replace it but the problem still, any ideas?
Posted by: dochilli on 2018-09-25 08:50:28 I think, that 01 means that the ROM test failled. The FA00 is meaningless. https://udcf.gla.ac.uk/~gwm1h/Error_Codes/Sad_Mac_Codes.html
Posted by: techknight on 2018-09-25 17:13:51 you can get a hair dryer or a heatgun on low, heat up the ROM and see if the problem goes away? I have seen ROMs go temp sensitive and will flip their bits over a temperature range. Usually caused by the internal buffer transistors going leaky, because the ROM itself is MASK. it cant change.
Posted by: El reeko on 2018-09-26 11:14:57 you can get a hair dryer or a heatgun on low, heat up the ROM and see if the problem goes away? Thanks! i´ll try will it be necessary change the rom chip?
Posted by: techknight on 2018-09-26 14:50:09 If its bad, Yep.
Posted by: El reeko on 2018-10-16 12:27:44 Hi everyone Finally i could change the rom chips, now the third problem, I have the system disk but I can not get it to load, my problem well be the floppy drive or the disk, I have no way to test the disk on another computer. new capacitor New rom chips Finally no error code! Happy mac! mine too! after this... whats next? View attachment WhatsApp_Video_2018-10-16_at_2_17.22_PM.mp4
Posted by: Dog Cow on 2018-10-16 15:08:55 , I have the system disk but I can not get it to load, my problem well be the floppy drive or the disk, I have no way to test the disk on another computer. Has that system disk worked in the past for you? Are you booting the disk with the Mac completely reassembled?
Posted by: dochilli on 2018-10-17 00:21:17 I think, that the disk is defect. It is not possible to write a 800kb disk with modern computers, you need another Mac like a SE or SE/30 to do this. There are some tutorials in the net, but you need a Mac with a superdrive or an external 800 KB drive to do this task. Was the floppy drive cleaned and lubricated? Sometimes cleaning the reading head with alcohol (isopropyl) solves some reading problems. I think, that the plus can read disks from OS 1.1 up to OS 6.0.8. What is the OS on your disk? Where are you from? Perhaps someone can send you a working disk? I can produce disks from OS 0.97 up to OS 7. But I am from germany. But also with a working boot disk you will have the problem to get software to your computer. Even for a serial communication, which can be a solution, you must have a programmdisk for your plus. When I came into this problem I bought a SE/30 with networkcard and an external 800kb disk drive. I can download software with my windows PC from the internet, put it in my own webserver with only standard html und download it from there with my SE/30 and Internet Explorer 3. This worked for me.
Posted by: El reeko on 2018-10-17 12:30:30 I think, that the disk is defect. It is not possible to write a 800kb disk with modern computers, you need another Mac like a SE or SE/30 to do this. There are some tutorials in the net, but you need a Mac with a superdrive or an external 800 KB drive to do this task. Was the floppy drive cleaned and lubricated? Sometimes cleaning the reading head with alcohol (isopropyl) solves some reading problems. I think, that the plus can read disks from OS 1.1 up to OS 6.0.8. What is the OS on your disk? Where are you from? Perhaps someone can send you a working disk? I can produce disks from OS 0.97 up to OS 7. But I am from germany. But also with a working boot disk you will have the problem to get software to your computer. Even for a serial communication, which can be a solution, you must have a programmdisk for your plus. When I came into this problem I bought a SE/30 with networkcard and an external 800kb disk drive. I can download software with my windows PC from the internet, put it in my own webserver with only standard html und download it from there with my SE/30 and Internet Explorer 3. This worked for me. Has that system disk worked in the past for you? Are you booting the disk with the Mac completely reassembled? Hi, thanks for the answers! I never used the disk, i bought online. I think the same "the disk is defect", the floppy drive is already cleaned and lubricated, when I enter another disk it marks me error so I think the unit works fine, but I'm really not sure about this. I am from Mexico city, the capacitors I bought here, but the disk and rom chips online. Locally have not found who has some macintosh running and can help me to create de discs. I'm looking for alternatives since I have the hard drive scsi but it is damaged or install a zip drive but I do not know if I can make it work without the floppy disk.
Posted by: Dog Cow on 2018-10-18 11:22:14 Hi, thanks for the answers! I never used the disk, i bought online. I think the same "the disk is defect", Who did you buy the disk from online? Maybe they will send you a replacement disk.
Posted by: MacintoshMan1999 on 2018-11-09 20:25:46 I think, that the plus can read disks from OS 1.1 up to OS 6.0.8. Apparently it's System 3.0 - System 7.5.5. (Not including System 7.5.2)
1