Samsung SGH-C160 service manual.pdf

(2526 KB) Pobierz
GSM TELEPHONE
SGH-C160
GSM TELEPHONE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
CONTENTS
Safety Precautions
Specification
Product Function
Array course control
Exploded View/Disassembly
and Assembly Instructions
MAIN Electrical Parts List
Block Diagrams
PCB Diagrams
Flow Chart of Troubleshooting
Reference data
1. Safety Precautions
1-1. Repair Precaution
●
Repair in Shield Box, during detailed tuning.
Take specially care of tuning or test, because the specification of cellular phone is sensitive for
surrounding interference(RF noise).
●
Be careful to use a kind of magnetic object or tool, because performance of parts is damaged by the
influence of magnetic force.
●
Surely use a standard screwdriver when you disassemble this product, otherwise screw will be worn
away.
●
Use a thicken twisted wire when you measure level.
A thicken twisted wire has low resistance, therefore error of measurement is few.
●
Repair after separate Test Pack and Set because for short danger (for example an
overcurrent and furious flames of parts etc) when you repair board in condition of
connecting Test Pack and tuning on.
●
Take specially care of soldering, because Land of PCB is small and weak in heat.
●
Surely tune on/off while using AC power plug, because a repair of battery charger is
dangerous when tuning ON/OFF PBA and Connector after disassembling charger.
●
Don't use as you pleases after change other material than replacement registered on SEC System.
Otherwise engineer in charge isn't charged with problem that you don't keep this rules.
1-1
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Safety Precautions
1-2. ESD(Electrostatically Sensitive Devices) Precaution
Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD
(Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below.
You can prevent from ESD damage by static electricity.
●
Remove static electricity remained your body before you touch semiconductor or parts with
semiconductor. There are ways that you touch an earthed place or wear static electricity
prevention string on wrist.
●
Use earthed soldering steel when you connect or disconnect ESD.
●
Use soldering removing tool to break static electricity. , otherwise ESD will be damaged by
static electricity.
●
Don't unpack until you set up ESD on product. Because most of ESD are packed by box and
aluminum
plate to have conductive power,they are prevented from static electricity.
●
You must maintain electric contact between ESD and place due to be set up until ESD is connected
completely to the proper place or a circuit board.
1-2
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
2. Specification
2-1. GSM General Specification
EG SM 900
DCS1800
Fr eq. Band[ MHz]
Uplink/Downlink
880~9 15
925~9 60
171 0~1785
180 5~1880
ARFCN rang e
0~124 & 975~ 1023
51 2~885
Tx/ Rx spacing
45MHz
9 5MHz
Mod. Bit rat e/
Bi t Pe rio d
270.8 33kbps
3.69 2us
270 .833kb ps
3. 692us
Tim e Slot
Period/F rame Per iod
576. 9us
4 .615ms
57 6.9us
4.6 15ms
Modu lation
0.3G MSK
0. 3G MSK
MS Power
33dBm~ 5dBm
30d Bm~0dBm
Power Cl ass
4
(max +33dBm)
1
(max +30dBm)
Sensitivity
- 102dBm
-100 dBm
T DM A M u x
8
8
Cell Ra dius
35Km
2Km
2-1
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Specification
2-2. GSM TX power class
TX Power
control level
5
GSM900
TX Power
control level
0
DCS1800
33±2 dBm
30±3 dBm
6
31±2 dBm
1
28±3 dBm
7
29±2 dBm
2
26±3 dBm
8
27±2 dBm
3
24±3 dBm
4
9
25±2 dBm
5
10
23±2 dBm
6
11
21±2 dBm
7
12
19±2 dBm
8
13
17±2 dBm
9
14
15±2 dBm
10
15
13±2 dBm
11
16
11±3 dBm
22±3 dBm
20±3 dBm
18±3 dBm
16±3 dBm
14±3 dBm
12±4 dBm
10±4 dBm
8±4dBm
12
6±4 dBm
17
9±3dBm
13
4±4 dBm
18
7±3 dBm
14
2±5 dBm
19
5±3 dBm
15
0±5 dBm
2-2
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin