Samsung SGH-E620 User manual

GSM TELEPHONE
SGH-E620
GSM TELEPHONE CONTENTS
1. Specification
2. Flow Chart of Troubleshooting
3. Exploded Views and Parts List
4. Electrical Parts List
5. Block Diagrams
6. PCB Diagrams

1. SGH-E620 Specification
1-1
1-1. GSM General Specification
GSM900
Phase 1
EGSM 900
Phase 2
DCS 1800
Phase 1 PCS1900
Freq. Band
[MHz]
Uplink/Downlink
890~915
935~960
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range 1~124 0~124 &
975~1023 512~885 512~810
Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz
Mod. Bit rate /
Bit Period
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
Time Slot
Period / 576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 5pcl ~ 19pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensitivity -102dBm -102dBm -100dBm -100dBm
TDMA Mux 8 8 8 8
Cell radius 35Km 35Km 2Km 2Km

SGH-E620 Specification
1-2
Tx Power
control level PCS1900
030±3dBm
128±3dBm
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
10 10±4dBm
11 8±4dBm
12 6±4dBm
13 4±4dBm
14 2±5dBm
15 0±5dBm
1-2. GSM Tx Power Class
Tx Power
control level DCS1800
030±3dBm
128±3dBm
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
10 10±4dBm
11 8±4dBm
12 6±4dBm
13 4±4dBm
14 2±5dBm
15 0±5dBm
Tx Power
control level GSM900
533±3dBm
631±3dBm
729±3dBm
827±3dBm
925±3dBm
10 23±3dBm
11 21±3dBm
12 19±3dBm
13 17±3dBm
14 15±3dBm
15 13±3dBm
16 11±3dBm
17 9±3dBm
18 7±3dBm
19 5±3dBm

2. SGH-E620 Flow Chart of Troubleshooting
2-1
2-1. Power On
check the current
consumption more
than 100mA
Download again
'Power ON' does not work
No
Yes
Yes
END
Yes
Check the Initial Operation
Check U100
Yes
Yes
Check U100
pin A13 =
2.8V
No U100 pin
C12 = 1.8V
No
Yes
Charge the battery
No
Check the Voltage
of the Battery more
than 3.5V
check keypad
No
Check the pin J12
of U100 is more
than 2.8V
Check
"Power On"
key?
No
check U100 and C103
Yes 1
2
1
12

SGH-E620 Flow Chart of Troubleshooting
2-2
VCCA_2.8
G
910
G
1
22
334
4
55
6
6
G
78
G
VCCD_1.8
CN100
1
C110
VCCD_2.8
C115
VCCD_1.5
VBAT
C109
VCCB_2.8
A13
VLDO_4 B12
VLDO_5 B10
VLDO_6 A14
VLDO_7 C12
VRTC H11
VSIM K12
VEXT E14
VIB_DRV F15
VL4S_A A12
VL4S_B B11
VL5S_A D10
C9
VL5S_B
VLDO_1 G11
VLDO_2 J12
VLDO_3
VDD12 J13
C11
VDD34
5
D
D
V0
1
C
SIM_CLK K14
SIM_IO J11
SIM_RST K11
UP_CLK N9
UP_IO P10
UP_RST R10
VACC F14
VBAT E13
SCLK_PSC L8
M7
SDI_PSC
SDO_PSC N7
RING_DRV F13
LED1_DRV G13
LED2_DRV G12
CH_BDRV E11
CH_ISEN F12
CH_RES D14
K8
CSN_PSC
ADC_AUX1 E10
ADC_AUX2 D15
VRF_2.8
C108
C117
C107
C111
C114
C103
C119
C113
C116
C112
VBAT
VRTC_1.5
C118
C104
UP_CS
KEY_BACKLIGHT
UP_SDO
UP_SDI
UP_SCLK
DCS_TX_EN
GSM_TX_EN
SIMRST
SIMDATA
SIMCLK

SGH-E620 Flow Chart of Troubleshooting
2-3
2-2. Initial
END
Yes
Check the signal at
thepinC15ofU100is
"LOW" when the
phone is boot on
Initial Failure
Check pin4 of OSC200
Voltage is 2.8V ?
Check OSC200
L708,pin A13 of U100,
OSC700,C113
No
Yes
Yes
No
No
Check pin10 of U302
Voltage is 2.5V?
Check or Change U301
Yes
Yes
No
Check pin3 of OSC700,
Frequency is 13MHz? Check or change OSC700
Check OSC300 is
working?
No
Check the soldered status of U302,
U200
1
2
3
4
5

SGH-E620 Flow Chart of Troubleshooting
2-4
1
2
2
2
3
4
4
5

SGH-E620 Flow Chart of Troubleshooting
2-5
OSC200
C215
C
T
R
1
X
9
1
H
9
1
FC
T
R
2
X
N
E
_
D
M
C
_
I
C
M
_
9
3
O
I
P
N
E
_
T
A
D
_
I
C
M
_
0
4
O
I
P
4
1
M
4
1
NN
E
_
0
T
A
D
_
I
C
M
_
3
4
O
I
P
J16
PIO47
5
G6
4
O
I
P
_
1
M
W
P
N
M
R
A
L
A
C
T
R
7
1
H
9
1
U
7
1
W8
2
O
I
P
2
3
O
I
P
3
1
R
U18
PIO33
PIO34 R14
4
1
L
5
1
PP
E
E
K
R
W
P
_
9
1
O
I
P
Q
E
R
K
L
C
S
Y
S
_
0
2
O
I
P
9
1
P
3
1
K0
T
A
D
_
I
C
M
_
1
2
O
I
P
1
T
A
D
_
I
C
M
_
2
2
O
I
P
2
1
L
3
1
L2
T
A
D
_
I
C
M
_
3
2
O
I
P
3
T
A
D
_
I
C
M
_
4
2
O
I
P
5
1
L
9
1
V5
2
O
I
P
6
2
O
I
P
6
1
U
7
2
O
I
P
6
1
GT
U
O
2
3
C
S
O
D
M
C
_
I
C
M
_
8
0
O
I
P
3
1
J
0
1
O
I
P
7
1
V
IRQ1 M16
M19
IRQ2
IRQ3 P17
P18
IRQ4
C216
USB_DET
BT_POW_EN
SPK_ON
D
N
G
16
5N/C
N/C 8
7
N/C
1VIN VOUT1 10
9
VOUT2EN1
2
3EN2
GND 6
11
D
N
G
D
N
G
12 13
D
N
G
D
N
G
14 15
D
N
G
U302
CBYP
4
C316
CAM_1.8
C314
R309
VBAT
C313
C315
CAM_2.5
C317
CAMPWR_EN
R110
VBAT
VREF A10
N
E
_
G
N
R
_
B
I
V
9
L
P
E
E
K
_
R
W
P
9
M
N
1
W
S
_
R
W
P
5
1
C
2
W
S
_
R
W
P
4
1
C
9
KO
_
T
E
S
E
R
RTC_ALMN H10
F
U
B
_
1
W
S
P
7
L
E
D
O
M
0
1
N
Q
R
T
N
I
0
1
L
E9
CREF
ADC_AUX1 E10
ADC_AUX2 D15
R109
C120 C121
F
U
B
_
1
W
S
P
PWR_KEEP
RTCALARM
RST
N
O
_
G
I
J
N
O
_
R
W
P
INTRQ

SGH-E620 Flow Chart of Troubleshooting
2-6
C312
R306
XIN
XOUT A1
A2
NC 2
1
NC
C310
OSC300
2
43
1
R702
BUFFIN
56
BUFFOUT
2
GND
3
OUT VCC
4
VCONT
1
OSC700
C709
10NF
16V
R705
R701
L708
C706
C704
C707
100PF
50V
C708
R704
R703
C711
VRF_2.8
C705
AFC
CLK13M_RF CLK13M_TR
CLK13M_MC
CLK13M_NEC

SGH-E620 Flow Chart of Troubleshooting
2-7
2-3. Sim Part
* Test with Sim
Check the pin 1 of
Phone can't access SIM card
Check the SIM
connector's (CN100)
connection to SIM
card
Check the circuit related to U100
Resolder or change CN100
END
No
Yes
Yes
Yes
No
Check the circuit
around CN100 input
circuitry
Check the related circuit of CN100
Yes
No
Check the circuit
around U200 output
and voltage supply
circuitty
Check the related circuit of U200 and
U100
Yes
No
1
2
3
4
1
23
4
4

SGH-E620 Flow Chart of Troubleshooting
2-8
2-4.Microphone Part
* Call with Sim before testing.
Check the soldered
status of microphone
MicroPhone does not work
Resolder microphone
END
No
Yes
Yes
Check the reference
voltage on mic path
R437, R439 ≒2.0V
Yes
Resolder or change
R429,C422,R433,R432,R437
R434,C429,R435,R436,R439
No
Is microphone OK?
Yes
Check U100
No
1
2
1
1
1
2

SGH-E620 Flow Chart of Troubleshooting
2-9
C429
C425
R437
AGND
R432
R435
R429
MIC401
C430
R433
C426
R439
C422
C427
C431
R434
R436
MIC1N
MICINN
MICINP
MICOUTP
MIC1P
MICOUTN

SGH-E620 Flow Chart of Troubleshooting
2-10
2-5.Bluetooth Part
Bluetooth does not work
*When you play MPEG file, if Audio is not active
Check U602 pin5 =
2.6V?
U100 C12 pin = 1.8V?
Yes
Resolder U602 or U100
No
Check pin22 of U601
≥1.5 dbm ?
Yes
Resolder U601
No
Change ANT601
Yes
1
2
1
1
2

SGH-E620 Flow Chart of Troubleshooting
2-11
VBAT
C611
R618
C607
BT_2.8
R604
5
VDD
1
C606
U602
3CE ECO 4
GND
2
OUT
BT_POW_EN
VCCD_1.8
C604
132
ANT601
VCCD_1.8
C610C609
20
VDD_REG
14
15 VDD_UART
PIO_8 23
1RESETB
UART_CTS
16
11 UART_RTS
UART_RX
10
UART_TX
9
VDD_PADS 19
VDD_PIO
12
7PCM_OUT
8PCM_SYNC
24
PIO_0
25
PIO_3
PIO_4/UART_TX2 3
6
PIO_5/UART_RTS2
PIO_6/UART_CTS2 4
17
PIO_7/UART_RX2
22 ANT
D
N
G
513
D
N
G
D
N
G
18 21
D
N
G
D
N
G
26
PCM_CLK
2
PCM_IN
U601
TR_RST
BT_2.8
DEBUG_RTS
DEBUG_RXD
PCM_OUT
DEBUG_TXD
DEBUG_CTS
PCM_IN
PCM_CLK
PCM_SYNC

SGH-E620 Flow Chart of Troubleshooting
2-12
2-6. Speaker Part
*Callbeforetesting.
Check the soldered
status of Speaker
Receiver does not work
Check the pin 7 of U401
"High"?
Resolder Speaker
Check U401 and the audio path of
U400,U100
END
No
Yes
Yes
No
Is Speaker working?
Is Speaker working ?
Check the path from U100 to CN500
Change Speaker
No
Yes
Yes
No
1

SGH-E620 Flow Chart of Troubleshooting
2-13
1
1
1

SGH-E620 Flow Chart of Troubleshooting
2-14
1
2
5
D
Z
C502
CAM_1.8
VCCD_1.8
6
1
5
D
Z
8
1
5
D
Z
C501
C507
C511
VCCD_2.8
R503
7
1
5
D
Z
1
1
5
D
Z
0
2
5
D
Z
C503
CAM_2.5
VBAT
C504
9
1
5
D
Z
48
49 49
5
5
50 50
6
6
7
78
8
9
9
41 41 42 42
43 43 44 44
45 45 46 46
47 47 48
33 34
34
35
35 36
36
37
37 38
38
39
39
4
4
40
40
27
27 28
28
29
29
3
3
30
30
31
31 32
32
33
19
2
2
20
20
21
21 22
22
23
23 24
24
25 25 26
26
11 12
12
13
13 14
14
15
15 16
16
17
17 18
18
19
CN500
1
1
10
10
11
BL_LED_EN
SPK1P
DIMMING_EN
LCD_D(3)_FO
HZREF
MCLK
CAM_SDA
CAM_SCL
VTREF
PCLK
CAM_RESET
LCD_D(10)_FO
LCD_D(8)_FO
LCD_D(0)_FO
LCD_D(2)_FO
LCD_D(4)_FO
CAM_FLASH_FO
LCD_RS_FO
CAM_Y(3)
CAM_Y(6)
CAM_Y(4)
CAM_Y(2)
CAM_Y(0)
LCD_D(11)_FO
LCD_D(9)_FO
LCD_D(1)_FO
LCD_D(13)_FO
LCDVIB_EN
SPK1N
LCD_WEN_FO
LCD_CS_FO
CAM_Y(5)
CAM_Y(7)
LCD_D(6)_FO
LCD_D(14)_FO
LCD_D(12)_FO
TR_RST
CAM_Y(1)
LCD_D(5)_FO
LCD_D(7)_FO
LCD_D(15)_FO
M
C
V
X
V
3
1
R
N
N
I
C
I
M
4
1
M
P
N
I
C
I
M
4
1
N
N
T
U
O
C
I
M
5
1
P
P
T
U
O
C
I
M
5
1
N
P
T
U
O
X
U
A
N
A
T
U
O
A
2
1
N
P
A
T
U
O
A
1
1
P
N
B
T
U
O
A
2
1
P
P
B
T
U
O
A
2
1
R
N
N
I
X
U
A
4
1
L
P
N
I
X
U
A
5
1
M
N
T
U
O
X
U
A
3
1
L
3
1
K
P
N
I
C
I
M
N
N
I
C
I
M
P
N
I
X
U
A
N
T
U
O
X
U
A
N
N
I
X
U
A
P
T
U
O
X
U
A
P
B
T
U
O
A
N
B
T
U
O
A
P
A
T
U
O
A
N
A
T
U
O
A
P
T
U
O
C
I
M
N
T
U
O
C
I
M
U100

SGH-E620 Flow Chart of Troubleshooting
2-15
C409
10NF
DVDD K9
ShortedwithA10
K10 N.C K2
PO0
K3
PO2
K4
DGND
K5
A0
K6
WR_B
K7
D0 K8
PO1
J3
PO3
J4
A1
J5
CS_B
J6
RD_B
J7
D1 J8
N.C J9 ShortedwithA1
K1
N.C H5
N.C H6
N.C H7
N.C H8
D3 H9
N.C J1
DGND
J10
N.C J2
N.C G3
N.C G8
D5 G9
AGND_P
H1
D2 H10
CLKIN
H2
N.C H3
A2
H4
D6 F10
TM1 F2
N.C F3
INT_DSP_B
F8
D7 F9
AGND
G1
D4 G10
AVDD_P
G2
VIB
D9
AVDD
E1
INT_SG_B
E10
VREF
E2
N.C E3
DGND_D
E8
RESET_B
E9
LINEOUT_R
F1
DVDD_D C8
EVDD
C9
AGND
D1
DVDD D10
IREF
D2 N.C D3
N.C D4
N.C D8
LINEOUT_L
C1 LED
C10
TM0 C2
N.C C3
DVDD_D C4
DGND_D
C5
N.C C6
N.C C7
N.C B2
TM2 B3
TM4 B4
CLK8K
B5
PS
B6
ASO
B7
BCLK
B8
N.C B9
RDATA
A4
TRSCK
A5
EGND
A6
ASI
A7
LRCLK
A8
DVDD A9
N.C B1
N.C B10
NC 1
NC 2
ShortedwithK1
A1
ShortedwithK10
A10
N.C A2
TM3 A3
U400
C408
C418
VCCD_1.8
C454
R423
VCCD_1.5
C419
C413
C417
C424
VCCD_2.8
C416
R431
NEC_RST
NEC_IRQ
SOUND_L
SOUND_R
A(1)
A(0)
NEC_CS
CP_OEN
CP_WEN
VIB_EN
D(2)
D(0)
D(1)
A(2)
D(3)
D(4)
D(7)
D(6)
D(5)
CLK13M_NEC
R424
2
0
4
F
10
NO2
1
V+
13
GG
14
GND
6
IN1
4
8
IN2
5
NC1
7
NC2
2
NO1
U401
COM1
3
COM2
9
11
GG
12
C403
R412
R473
R472
AVDD_3.3
SPK1P SW1_EN
AOUTAP
AOUTAN
AMP_OUT+
AMP_OUT-
SPK1N

SGH-E620 Flow Chart of Troubleshooting
2-16
2-7. Key Data Input
Check soldered status of
CN500 and connecting
status between connector
and PBA
Check the Initial Operation
END
Yes
When "#"pad pressed,
Pin 38 of
CN500=2.8V(high)?
Yes
Resolder CN500 or U200
No
Check U200
No
Yes
Check the Keypad &
Dome Sheet
Replace or Adjust
the Keypad & Dome Sheet
1
2
1
12

SGH-E620 Flow Chart of Troubleshooting
2-17
KEY-XBS
1
12
ZD507
0
KEY-XBS
12
1
1
22
33
44
1
1
22
33
44
VOL300
ZD502
CAM
6
KEY-XBS
12
CLEAR
KEY-XBS
12
KEY-XBS
9
12
ZD509 ZD510
R505
R507
6
2
5
D
Z
KEY-XBS
7
12
KEY-XBS
SHARP
12
DOWN
KEY-XBS
12
R527
8
2
5
D
Z
7
2
5
D
Z
MENU
KEY-XBS
12
R511
KEY-XBS
*
12
R508
R510
ZD503
R513
R509
8
KEY-XBS
12
ZD501
2
I
KEY-XBS
1
ZD504
KEY-XBS
RIGHT
12
12
ZD506
4
KEY-XBS
STO
KEY-XBS
12
12
KEY-XBS
LEFT
2
KEY-XBS
5
1
4
2
5
D
Z
5
2
5
D
Z
ZD508
SEND
KEY-XBS
12
KEY-XBS
UP
12
R512
ZD505
12
KEY-XBS
3
12
2
KEY-XBS
R504
KEY_COL(3)
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
KEY_COL(4)
KEY_COL(0:4)
KEY_ROW(2)
KEY_ROW(0)
KEY_ROW(3)
KEY_ROW(1)
KEY_ROW(0:4)
KEY_ROW(4)