Text preview for : Samsung SGH-C170 service manual.pdf part of Samsung SGH-C170 service manual Samsung GSM Samsung SGH-C170 service manual.pdf
Back to : Samsung SGH-C170 service | Home
GSM TELEPHONE
SGH-C170
GSM TELEPHONE CONTENTS
1. Specification
2. Exploded View and Parts list
3. Chart of Troubleshooting
4. Array course control
5. Block Diagrams
6. PCB Diagrams
7. MAIN Electrical Parts List
8. Reference data
9. Safety Precautions
10. Product Function
Contents
1. Specification
1-1. GSM General Specification .......................................................................................1-1
1-2. GSM TX power class ...............................................................................................1-2
2. Exploded View and Parts list
2-1. Cellular phone Exploded View ..................................................................................2-1
2-2. Cellular phone Parts list ............................................................................................2-2
2-3. Disassembly ...............................................................................................................2-9
2-4. Assembly ..................................................................................................................2-11
3. Chart of Troubleshooting
3-1. Baseband ............................................................................................................3-1
3-1-1. Power ON .....................................................................................................3-1
3-1-2. System Initial ................................................................................................3-5
3-1-3. SIM Part .......................................................................................................3-8
3-1-5. Microphone Part .........................................................................................3-12
3-1-6. Receiver part ..............................................................................................3-15
3-1-7. Speaker Part ..............................................................................................3-18
3-2. RF ....................................................................................................................3-13
3-2-1. EGSM Rx ...................................................................................................3-23
3-2-2. DCS Rx ......................................................................................................3-24
3-2-3. EGSM Tx.....................................................................................................3-25
3-2-4. DCS Tx ......................................................................................................3-27
Contents
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. Block Diagrams
6. PCB Diagrams
7. MAIN Electrical Parts List
8. Reference data
8-1. Reference Abbreviate ..............................................................................................8-1
9. Safety Precautions
9-1. Repair Precaution ......................................................................................................9-1
9-2. ESD(Electrostaically Sensitive Devices) Precaution ................................................9-2
10. Product Function
1. Specification
1-1. GSM General Specification
EG SM 9 00 DCS1 800
Ph ase 2 Phase 1
F req. Ban d[MHz] 8 80~915 1710~1 785
Uplin k/Down link 9 25~960 1805~1 880
ARF CN ra nge 0~1 24 & 9 75~102 3 512~8 85
T x/Rx spacing 45 M Hz 95 MHz
Mo d. Bit r ate/ 270 .833 kb ps 2 70.83 3 kbps
Bit Period 3 . 692 u s 3.69 2 us
Ti me Slo t Pe rio d/Fr am e 5 76.9 u s 576. 9 us
Per iod 4. 615 ms 4 .615 ms
Modula tion 0 .3 G M SK 0.3 G MSK
M S Power 33 d Bm ~5 dBm 3 0 dBm ~0 dBm
Powe r Class 5 pcl ~ 19 pcl 0 pcl ~ 15 pcl
Se nsitivity -10 2 dBm - 100 dBm
TDMA M ux 8 8
Cell Radiu s 35 Km 2 Km
1-1
Speclflcation
1-2. GSM Tx Power Class
TX Power TX Power
GSM900 DCS1800
control level control level
5 33