Post again U7600 mentioned pins voltage.
-
For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.Subscribe Now
820-00034-A 2 led on, fan on, no chime/screen
- Thread starter yair37
- Start date
ISL62383C fails a lot, change it.
If first LED (S5 state) not steady, Q6970 is the first suspect.
Do you note drop pulse at 12V_S5 when first LED goes off?
You should change Q6970, just in case.
You should change Q6970, just in case.
Last edited:
Possibly, compare specifications with the ones you have on scrap boards.
AON7402/08 and many other should work; not from Apple stuff.
Just try making a bypass D-S on it.
AON7402/08 and many other should work; not from Apple stuff.
Just try making a bypass D-S on it.
explain please..
Run a wire between its pins D-S.
Do you work with original power supply, or lab PSU?
Test with lab PSU (12V) setting amp limit to max.
Test with lab PSU (12V) setting amp limit to max.
Yes, to discard a power supply issue.
I suspect knocked off components, or broken trace; if board stopped to turn off after ultrasonic bath and other tests.