Blu Life Play X, Руководство по обслуживанию, Страница: 16 / 27

16 / 27
2.2.3.3 HEADSET LOOP
Headset loop includes two signals: Headset speaker and MIC, simultaneously the headset uses
contact devices, the headset LOOP drive the FPC directly through J301. If the headset fitting were
in good condition, when the headset plug in, it appears abnormal, such as: The Headset speaker
has no sound
、
the MIC is invalid. All this need to check the access conditions of the circuit above.