Macintosh Portable

Sep 20, 2023
4
0
1
Blue Ridge, GA, USA
This is photo from Mac Portable non-backlight. Trying to recap and repair the traces. I noticed the 2 tinned traces coming from R22 show continuity across R22 resister. Should they show continuity? What is likely causing that if not?

IMG_3333.jpeg
 

Garrett

Tinkerer
Oct 31, 2021
109
112
43
MN, USA
This is photo from Mac Portable non-backlight. Trying to recap and repair the traces. I noticed the 2 tinned traces coming from R22 show continuity across R22 resister. Should they show continuity? What is likely causing that if not?

View attachment 19040
That resistor should be 4.7 ohms, which some meters may determine as low enough resistance to beep “continuity”. What does the meter say in resistance mode?
 
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