Shenzhen Walida After-sale Service Department
SG3318 Trouble shooting and maintainence
Replace PCB
Check U400
Check if MIC work
normal
?
Replace MIC
Dial 112 and then check if
C202 UP voltage = 1.8V?
Check R203, R202, R206, R207,
and U400
Check offset voltage of Mic
Is the configure of Mic normal ?
Reassemble Mic
Microphone can’t work
repairing process for
“
No sending sound
”
Technical support department
After-sale
Содержание SG3318
Страница 1: ...Manual for after Sales Services ...
Страница 5: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models 4 Appearance ...
Страница 7: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models ...
Страница 15: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models 四 Hardware Circuit 1 7 1 ...
Страница 16: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models ...
Страница 17: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models 2 7 2 ...
Страница 18: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models 3 7 3 ...
Страница 19: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models 4 7 4 ...
Страница 20: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models 5 7 5 ...
Страница 21: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models 6 7 6 ...
Страница 22: ...Shenzhen Wanlida After sale Service Department SG3318 Introduction to models 7 7 7 ...