Safety Precautions; Specification; Product Function; Array Course Control - Samsung SGH-D520 Service Manual

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 Level ......................................................................2-2

3. Product Function

4. Array course control

4-1. Downloading Binary Files .............................................................4-2
4-2. Pre-requsite for Downloading .......................................................4-2
4-3. S/W Downloader Program ...........................................................4-3

5. Exploded View and Parts list

5-1. Cellular phone Exploded View ......................................................5-1
5-2. Cellular phone Parts list ..............................................................5-2

6. MAIN Electrical Parts List

7. Block Diagrams

8. PCB Diagrams
9. Flow Chart of Troubleshooting
9-1. Baseband ..................................................................................9-1
9-1-1. Power ON .............................................................................9-1
9-1-2. Initial ...................................................................................9-4
9-1-3. SIM Part ...............................................................................9-6
9-1-4. Microphone Part ....................................................................9-7
9-1-5. Speaker Part_1(MP3, SPEAKER PHONE) ...................................9-8
9-1-6. Speaker Part_2(RECEIVER) ...................................................9-10
9-1-7. Charging Part ......................................................................9-11
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