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8. Level 3 Repair
8-4-9 Sensor
8-4-9-1 HRM Sensor
No
HRM Sensor does not work.
Yes
Turn the Green LED on
Yes
Yes
Yes
No
No
No
Check the C533
Check the C535
Replace the R337, R338 or U505
END
Check the Voltage level at
C533=1.8V
Check the Voltage level at
C535=3.3V
Check the signal at R337,
R338
Check the C534
Yes
