Yesterday i was playing with some non functional boards i put in a box over a decade ago.
[SIZE=14.4px]Of them, the one i recapped in 2008 has been suffering from erratical no video/no nubus syndrome. The[/SIZE] reflowing of colder joints and the recostruction of one lifted pad restored the board to a functional state.
Strangely i have found an irregular corroded or scratched trace[SIZE=14.4px] starting from memory slot. It was corroded exactly above the "C7" capacitor writing. I've[/SIZE][SIZE=14.4px]'v[/SIZE]e found very similar pattern in a second, not yet restored, board and even in a IIx (!!!) Why only one and why the same ?
[SIZE=14.4px]Any insight? Could be because of Apple intervention during test phase or in the support timeframe?[/SIZE]
[SIZE=14.4px]Or are them simply badly corroded traces because of C7/battery acid leak?[/SIZE]
[SIZE=14.4px]Of them, the one i recapped in 2008 has been suffering from erratical no video/no nubus syndrome. The[/SIZE] reflowing of colder joints and the recostruction of one lifted pad restored the board to a functional state.
Strangely i have found an irregular corroded or scratched trace[SIZE=14.4px] starting from memory slot. It was corroded exactly above the "C7" capacitor writing. I've[/SIZE][SIZE=14.4px]'v[/SIZE]e found very similar pattern in a second, not yet restored, board and even in a IIx (!!!) Why only one and why the same ?
[SIZE=14.4px]Any insight? Could be because of Apple intervention during test phase or in the support timeframe?[/SIZE]
[SIZE=14.4px]Or are them simply badly corroded traces because of C7/battery acid leak?[/SIZE]
