• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

Macintosh Portable M5120 No Internal Sound, External OK

Brooklyn

Well-known member
Hi, I just recapped a Mac Portable M5120 logic board. It has no sound to the internal speaker, the external jack works however. I found C9 (+) was not connect to pin 11 of the Sound Left Chip. C10 (+) was connected OK to Sound Right. I also found that the speaker (+) does connect to 2 leads on the external jack (see attached). Speaker is tested OK in my backlit portable. Any thoughts?
 

Attachments

  • Screenshot 2023-12-18 at 3.09.43 PM.png
    Screenshot 2023-12-18 at 3.09.43 PM.png
    4 MB · Views: 8
  • Screenshot 2023-12-18 at 3.10.07 PM.png
    Screenshot 2023-12-18 at 3.10.07 PM.png
    7.2 MB · Views: 10

Brooklyn

Well-known member
I have already solved this- the via connecting (-) C9 and R91 on the back side of the board was broken. Bodged this connection and all good!
 
Top