Samsung SGH-E105 User manual

SGH-E105
SERVICE
Manual
GSM TELEPHONE CONTENTS
1. Specification
2. Exploded Views and Parts List
3. Electrical Parts List
4. Flow Chart of Troubleshooting
5. Block Diagrams
6. PCB Diagrams
GSM TELEPHONE

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2. SGH-E105 Exploded View and its Parts list
2-1
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1. Cellular phone Exploded View
7
8
96
1
3
4
5
10
11
12
13
17
22
18
19
20
21
2
14
16
15

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5. SGH-E105 Block Diagrams
5-1
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1. RF Solution Block Diagram
FEM
RF
FILTER
100KHz
PGA
PGA
CHANNEL
FILTER
DAC
DAC
SI4201
1/2
PGA
PGA
ADC
ADC
N
L
A
DET
SI4200
SERIAL DATA
INTERFACE
DSP16000
ARM7TDMI
CSP1093
UI
GSM:890MHz~915MHz
PCS:1850MHz~1910MHz
GSM:925MHz~960MHz
PCS:1930MHz~1990MHz
Antenna
TX VCO
PAM
I
Q
AFC
CLK
TCVCXO
13MHz
I
Q
TRIDENT
RF
PLL
IF
PLL
SI4133T
BASE
BAND
AUDIO
TXPOWER

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SGH-E105 Block Diagrams
5-2
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2. Base Band Solution Block Diagram
ACC
RTC
PPI
(Programmable
Peripheral I/O)
JTAG/ICE
DSP16000
ARM7TDMI
EMI
IO
RWN
AB(8:0)
DB(15:0)
INT1
IRQx
PAx
RSTB
DSPJTAG
LCD
KEYBOARD
SMART
CARD
POWER
(DC/DC, CHARGER)
MCP
128M FLASH
16M SRAM
Memory Part
X-TAL
32.768 KHz
IRDA
ARM
JTAG/ICE
SIM I/O
GPIO
RS232
TRIDENT
IO
RWN
AB(8:0)
DB(15:0)
INT1
IRQx
PAx
RSTB
JTAG
<RF DRIVER>
TX I/Q
RX I/Q
TXP
SERCK
SERLE
SERDA
OCTL
DAICK
DAIRN
DAIDO
DAIDI
AUDIO PART
CSP1093 TXIP
TXIN
TXQP
TXQN
RXIP
RXIN
RXQP
RXQN
SERCK
SERLE
SERDA
RXOVL
TXP
OCTL
RF SOLUTION
-RFIC
-PAM
X-TAL
13MHz
DAI
AUDIO
LCD
MOTOR
B'D to B'D Connector

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4. SGH-E105 Flow Chart of Troubleshooting and Circuit Diagrams
4-1
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1.Baseband
1. Power ON
Check the current
consumtion more than
100mA
Check the
Vbat(battery+O)
Voltage more than
3.3V
Download again
NO
Charge the Battery
NO
Check U100 and C113
NO
YES
YES
YES
YES
'Power On' does not
work
Check the pin
15 of U100 is more
than 2.8V
U100 pin 46,39
=2.8V
U100 pin 13
=1.8V
Checktheclocksignal
at
pin4 of U800
Freq=13MHz ?
Vrms°√300mV ?
Vpp is around
900mVpp
Check the clock generation circuit
(related to OSC801 and U800)
NO
'Power On' does not
work
YES
END
YES
Check C114 and C116
NO
Check C112
NO