Asus P552W Manual page 31

● Unable to detect headphone
Verify if JACK_IN_DET is 1.8V when the headphone is
unplugged. If not, please verify if there is any defect on
components R1116, C1114, R1119.
● No sound on the left channel:
Verify if R1135, R1127, C1117 is defective, and that audio signal
can be measured on above components when playing the sound
through headphone. If the audio signal can be measured on C1117
and R1127, but can not be observed on R1135, then it is likely that
U1102 is defective.
● No sound on the right channel:
Verify if R1134, R1126, C1118 is defective, and that audio signal
can be measured on above components when playing the sound
through headphone. If the audio signal can be measured on C1118
and R1126, but can not be observed on R1134, then it is likely that
U1102 is defective.
● Headset MIC Recording Defect
Please verify if there is any defect on L1102 or R915.
華 碩 電 腦
華 碩 電 腦
GTC ■ Service Manual
31