Samsung SGH-E420 service manual free download

File name Samsung SGH-E420 service manual.pdf

GSM TELEPHONE SGH-E420 GSM TELEPHONE CONTENTS 1. Safety Precautions 2. Specification 3. Product Function 4. Array course control 5. Exploded View/Disassembly and Assembly Instructions 6. MAIN Electrical Parts List 7. Block Diagrams 8. PCB Diagrams 9. Flow Chart of Troubleshooting 10. Reference data CONTENTS 1. Safety Precautions 1-1. Repair Precaution...1-1 1-2. ESD(Electrostatically Sensitive Devices) Precaution...1-2 2. Specification 2-1. GSM General Specification...2-1 2-2. GSM Tx Power Class...2-2 3. Product Function 4. Array course control 4-1. Software Adjustments...4-1 4-2. Software Downloading...4-2 5. Exploded View/Disassembly & Assembly Instructions 5-1. Cellular phone Exploded View...5-1 5-2. Cellular phone Parts list...5-2 5-3. Disassembly & Assembly Instructions...5-4 6. MAIN Electrical Parts List 7. Block Diagrams 8. PCB Diagrams CONTENTS 9. Flow Chart of Troubleshooting 9-1. Pown on...9-1 9-2. Initial...9-3 9-3. Charging Part...9-6 9-4. SIM Part...9-8 9-5. Microphone Part...9-10 9-6. Speaker Part...9-12 9-7. Key Data Input...9-14