Sharp SGH-C130 10-1-2. Initial

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Flow Chart of Troubleshooting

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10-1-2. Initial

Initial Failure

The pin #G11 of U107 =

1.8V and

the pin #J12 of U107 =

2.8V ?

Check the U107

(if it has some problem, it is to be replaced.)

Yes

Is the pin #K9 of U107

"Low →High" ?

Yes

No Check the U107

(if it has some problem, it is to be replaced.)

There is 32.768kHz wave

forms at the C216 and

C217

Yes

Check the UCP201

Is the pin #A4 of U107

is "High"

The voltage is "High" at

the C170,C172,C173 Check the U107

Check the UCP201

LCD display is O.K

Yes

Check the LCD part

Sound is O.K

Yes

Check the Audio part

END

Yes

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Contents

Main GSM TELEPHONE SGH-C130 Page Contents 11. Reference data 1. Safety Precautions 1-1. Repair Precaution 1-2. ESD(Electrostatically Sensitive Devices) Precaution 2. Specification 2-1. GSM General Specification 2-2. GSM TX power class 3. Product Function 3-1. Main Function Page Software Downloading Page Page Page Page 5. Exploded View and Parts List 5-1 5-1. Cellular phone Exploded View 5-2. Cellular phone Parts list Design LOC Discription SEC CODE Discription SEC CODE 6. Disassembly and Assembly instructions 6-1. Disassembly 56 7 8 6-2. Assembly Page Page Page Page 7. MAIN Electrical Parts List Page Page Page Page Page Page Page 9. PCB Diagrams P ZD214 ZD215 STO K PCB Diagrams BAT300 TA109 SIM103 IFC101 10. Flow Chart of Troubleshooting 10-1 10-1.Baseband 10-1-1. Power ON Page 10-3 Page 10-5 10-1-2. Initial Page 10-7 C201 D(4) D(5) D(6) 10-1-3. Sim Part Page 10-10 10-1-4. Microphone Part Page 10-12 10-1-5. Receiver Part 10-1-6. Speaker Part Page 10-14 10-15 R179 ZD122 ZD124 C114 10-2.RF 10-2-1. EGSM RX Page 10-18 10-2-2. DCS RX Page 10-20 10-2-3. EGSM TX Page 10-22 10-2-4. DCS TX Page 10-24 PAM100 11. Reference data 11-1. Reference Abbreviate