Hello everybody
I have a problem with my Macintosh Classic II.
the computer would not start more '.
I made the first tests with hot air to the analog board and give satisfactory results booting.
The image was moved and the hard disk intermittently started and stopped.
At this point, I replaced all capacitors (thanks to Uni for capacitors references )(many were gone)
1 - 1000μf - 10v - radial
1 - 1000μf - 16v - radial
1 - 1000μf - 35v - radial
2 - 2200μf - 10v - radial
1 - 2200μf - 35v - radial
2 - 470μf 25v
Now the computer starts, but still has the problem that the hard disk spin intermittently.
I tested the gates of the floppy: pin 6 measuring 4.8 v
pin 7 measuring 12.3
although it is not recommended I tried to modify the voltage from the analog board, but did not give any improvement.
The problem is in the 2 diodes in pictures displayed in red?
Unfortunately i can not read 'code and model cause are discolored , someone can tell me the specs model and possibly replacement part?.
They may be the cause of my failure?
Or the problem is to be found from something else?
Thanks for your help
I have a problem with my Macintosh Classic II.
the computer would not start more '.
I made the first tests with hot air to the analog board and give satisfactory results booting.
The image was moved and the hard disk intermittently started and stopped.
At this point, I replaced all capacitors (thanks to Uni for capacitors references )(many were gone)
1 - 1000μf - 10v - radial
1 - 1000μf - 16v - radial
1 - 1000μf - 35v - radial
2 - 2200μf - 10v - radial
1 - 2200μf - 35v - radial
2 - 470μf 25v
Now the computer starts, but still has the problem that the hard disk spin intermittently.
I tested the gates of the floppy: pin 6 measuring 4.8 v
pin 7 measuring 12.3
although it is not recommended I tried to modify the voltage from the analog board, but did not give any improvement.
The problem is in the 2 diodes in pictures displayed in red?
Unfortunately i can not read 'code and model cause are discolored , someone can tell me the specs model and possibly replacement part?.
They may be the cause of my failure?
Or the problem is to be found from something else?
Thanks for your help
