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4. TROUBLE SHOOTING
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4.17 Headset path
MSM6245 HPH_R, HPH_L → C402/C401 → R407/R406 → CN401 (MMI Connector)
Start
Connect the phone to network
equipment and setup call.
Setup 1KHz tone out
and insert headset.
Can you hear the tone?
Change the Headset
YES
NO
END
Sine wave appears at
R407/R406?
Change the Main board
YES
NO