Service Excellence Beyond Imagination
SWA-CS Content Innovation
Speaker problem
Step
Check point
Result value
Defect point
1
Confirm the defect symptom
-
-
2
Make a factory reset (*2767*3855#)
Solved
Setting error
Not solved
Go to the next step
3
Check the speaker connector (HDC501)
Broken, dust, corrosion
Speaker connector
Normal
Go to the next step
4
Replace the speaker module (GH96-06683A)
Solved
speaker
Not solved
Go to the next step
5
Connect a LCD, and power on with a power
supply
(power supply voltage : 3.8V)
-
-
6
Activate the speaker path
(*#0*#
→
Speaker)
-
-
7
Check the signal of speaker contact
(C529,C530)
Notice. It should be measured when the
speaker path is activated on
Same signal compared with a
good PBA
PBA
No signal
Audio Codec (U502)