-
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
Search results
-
C
820-00840 no POST
Hi guys, Got an 820-00840 that I got for new screen (usual flexgate problem) Noticed that machine has a 'cold boot' issue where it randomly powers off or restarts during use, especially when cold booting. First few times it struggles to even get to login screen. After a warm up period is...- chrislewis85
- Thread
- Replies: 10
- Forum: Macbook Logic Board Repair Questions
-
C
820-3437-B not powering
Hi guys, Got a 3437-B which had fluid damage around U1950. Cleaned area and replaced U1950. Getting green light but no fan spin. Rails so far as follows: PPBUS_G3H = 8.56V PP3V3_S5 = 3.0V PP5V_S5 = 5.0V PP3V3_S4 = 0V Struggling to understand on schematic where S4 rails will...- chrislewis85
- Thread
- Replies: 3
- Forum: Macbook Logic Board Repair Questions
-
C
820-00165 no power
Hi guys, Got this 820-00165 which initially had minor corrosion around U7090, no green light. Found blown D7012, replaced and now got green light but no fan spin. PPDC_IN is only 16.44v, PPBUS_G3H is 0.3v Any idea where to go on this one?- chrislewis85
- Thread
- Replies: 7
- Forum: Macbook Logic Board Repair Questions
-
C
820-00840 no image
Hi guys, Newbie here still learning! I have an 820-00840 here with no image. Board has no signs of present fluid damage but appears to have had a previous repair to PP3V3_S4 (wire to replace broken trace). Board boots to OS fine and video fine when connected to external screen. Display...- chrislewis85
- Thread
- Replies: 13
- Forum: Macbook Logic Board Repair Questions