Samsung SM-G975F Service Manual page 94

8. Level 3 Repair
8-4-8-7. HRM Sensor
HRM Sensor does not work
Check the voltage
C5051, C5052 =1.8V
(Sensor's IO voltage)
Check the voltage
C12044, C5040 =5.25V
(Sensor's LED voltage)
Check R6008, R6009
(I2C is OK?)
Check U5011
(crack, open, etc.)
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung's written authorization is strictly prohibited.
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
END
No
No
No
No
Replace U8035
Replace U5008
Replace U5014
Replace U5011