68kMLA Classic Interface
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| looking for Info about Flyback for Classic II | |
| Posted by: saxonas on 2022-05-11 05:06:42 Hi guys i hope you can help. I have an Apple Classic II which im trying to restore.The problem is that i cant find a replacement for the flyback.Any ideas for a replacement part or maybe compatible flyback with different serial ? thank you !  | |
Posted by: jajan547 on 2022-05-11 06:35:54Hi guys i hope you can help.I have a spare. | |
Posted by: joshc on 2022-05-11 08:03:02I have an Apple Classic II which im trying to restore.What are the symptoms, how have you determined the flyback is bad? | |
Posted by: jajan547 on 2022-05-11 09:55:56What are the symptoms, how have you determined the flyback is bad?Agreed, is there a purple glow with lights off? | |
Posted by: saxonas on 2022-05-13 02:43:07Agreed, is there a purple glow with lights off?Yes its bad.I checked it and it is shorted and when I removed it, measurements at it's pins are between 2,9 and 4,9ohms. The irf640 mosfet also is gone...cooked... | |
Posted by: jajan547 on 2022-05-13 03:37:08Yes its bad.I checked it and it is shorted and when I removed it, measurements at it's pins are between 2,9 and 4,9ohms.PM me I have a spare one for your board. | |
Posted by: saxonas on 2022-05-13 04:02:35PM me I have a spare one for your board.Is it possible to measure and tell me if you find the same readings?(see images) | |
Posted by: jajan547 on 2022-05-13 04:14:49Is it possible to measure and tell me if you find the same readings?(see images)Not at home right now but know for a fact the one I have works, I can measure mine when I get home but the one I have is yours for $25 | |
| Posted by: jajan547 on 2022-05-13 14:41:37 Yeah mine read different on every pin you tested. Here's a pic of what I have. | |
| Posted by: iZier Museum on 2022-05-26 14:55:45 Hi Everyone! I'm a new member here; and unfortunately I have the same problem from Mr. Saxonas.; the difference is that I need a flyback to my CLASSIC from 1991. When I turn on my Mac; they are doing strangers sounds coming from the flyback; and on the screens it's possible to see some flashing vertically. It's possible to solve trying to weld again or I'll need a new flyback? Please let me know! iZier. | |
Posted by: jajan547 on 2022-05-26 14:57:34Hi Everyone! I'm a new member here; and unfortunately I have the same problem from Mr. Saxonas.; the difference is that I need a flyback to my CLASSIC from 1991. When I turn on my Mac; they are doing strangers sounds coming from the flyback; and on the screens it's possible to see some flashing vertically. It's possible to solve trying to weld again or I'll need a new flyback? Please let me know! iZier.Do me a favor here and take a picture of the back of your analog board. | |
| Posted by: iZier Museum on 2022-05-26 15:02:55 Hello janjan547; tks for your fast reply. So; I'll need to open my Mac again, and asap I'll post this picture! RGS!!! | |
Posted by: jajan547 on 2022-05-26 15:04:14Hello janjan547; tks for your fast reply. So; I'll need to open my Mac again, and asap I'll post this picture! RGS!!!No worries usually respond pretty quick. | |
| Posted by: iZier Museum on 2022-05-26 15:05:14 Nice; I'll continue talking with you by my other post. TKS! | |
| Posted by: saxonas on 2022-07-25 05:43:37 After changing the HOT transistor, the LOPT from JanJan (thank you!), recaping the power supply and METICULOUSLY (I can't stress this enough) cleaning the motherboard, you can see the result! (yes, it's in greek).  | |
| Posted by: cheesestraws on 2022-07-25 05:45:35 Nicely done! The Chicago font looks really classy with the Greek alphabet. | |
| Posted by: joshc on 2022-07-25 06:00:51 Congrats, these are not easy machines to work on by any means. | |
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