Samsung GT-B5510 Service Manual page 40


Main MIC Working
Operate MIC
NG
Pollute
MIC Hole?
NO
L505,R517,R512,C516,
C517 is soldered
operately?
YES
Check
C518 = High?
YES
Change MIC
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
YES
Clean up
MIC hole
NO
L505,R517,R512,C516,
C517 Resoldering
NO
MIC_BIAS_2.15V
= 2.15V ?
Change MIC
8-11
Check
Change main PBA
Level 3 Repair
NO