Audio Part ( Earpiece, Hands-Free Earphone, Microphone, Hands-Free Mic ); N Oreceiving Tone Heard (Earpiece ) - Pantech GB210 Service Manual

GB210 Service Manual

6.2 Audio Part ( Earpiece, Hands-free Earphone, Microphone, Hands-free Mic )

6.2.1 No receiving tone heard ( Ear-piece )
1. Check to see if U112.5 is 2.5V : CP116
2. Check to see if U113.1 is around 1.2V : CP117
Set to HP8922M to connect a call and then set to 1kHz.
3. Check to see if R198.1 is 0V : CP118
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PANTECH
CP118
CP116
CP117
CP118
R&D CONFIDENTIAL