Samsung | SGH-N707 | Samsung SGH-N707 service manual

GSM TELEPHONE
SGH-N707
SERVICE
GSM TELEPHONE
Manual
CONTENTS
1.
Specification
2.
Circuit Description
3.
Exploded Views and Parts List
4.
Electrical Parts List
5.
Block Diagrams
6.
PCB Diagrams
7.
Flow Chart of Troubleshooting
ELECTRONICS
ⓒ Samsung Electronics Co.,Ltd. APRIL. 2004
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
Printed in Korea.
International and/or domestic law.
Code No.: GH68-05461A
BASIC.
1. SGH-N707 Specification
1. GSM General Specification
GS M8 5 0
P C S1 9 0 0
F r e q . B an d [ MH z]
Up l i n k /D o wn l in k
8 2 4 ~8 4 9
8 6 9 ~8 9 4
1 8 5 0 ~1 9 1 0
1 9 3 0 ~1 9 9 0
AR FC N r an g e
1 2 8 ~2 5 1
5 1 2 ~8 1 0
T x /R x s p ac in g
4 5 M Hz
8 0 MH z
M o d . Bi t r at e /
B i t P er i o d
2 7 0 .8 3 3 k b p s
3 .6 9 2 u s
2 7 0 .8 3 3 k b p s
3 .6 9 2 u s
T im e S lo t P er i o d / Fr a me
P er io d
5 7 6 .9 u s
4 .6 1 5 m s
5 7 6 .9 u s
4 . 6 1 5 ms
Mo d u l a ti o n
0 .3 GM S K
0 . 3 GMS K
MS Po w er
3 3 d B m ~5 d B m
3 0 d B m~0 d B m
Po w er C l as s
5 p c l ~ 1 9 p cl
0pcl ~ 15pcl
S en s i ti v i ty
-102dBm
- 1 0 2 d Bm
TD MA Mu x
8
8
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Specification
2. GSM TX power class
TX Power
control level
GSM850
TX Power
control level
PCS1900
5
33±2 dBm
0
30±2 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
9
25±2 dBm
4
22±3 dBm
10
23±2 dBm
5
20±3 dBm
11
21±2 dBm
6
18±3 dBm
12
19±2 dBm
7
16±3 dBm
13
17±2 dBm
8
14±3 dBm
14
15±2 dBm
9
12±4 dBm
15
13±2 dBm
10
10±4 dBm
16
11±3 dBm
11
8±4dBm
17
9±3dBm
12
6±4 dBm
18
7±3 dBm
13
4±4 dBm
19
5±3 dBm
14
2±5 dBm
15
0±5 dBm
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2. SGH-N707 Circuit Description
1. SGH-N707 RF Circuit Description
1) RX PART
1. FEM(U402(SWITCHPLEXER+FILTER)) → Switching Tx, Rx path for GSM850, and PCS1900 by logic controlling.
2. FEM Control Logic (U402) → Truth Table
VC1
VC2
DCS / PCS Tx Mode
L
H
GSM Tx Mode
H
L
GSM / PCS Rx Mode
L
L
3. FILTER
To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band.
- GSM FILTER (U402(SWITCHPLEXER+FILTER)) → For filtering the frequency band between 869 ~ 894 MHz
- PCS FILTER(U402(SWITCHPLEXER+FILTER)) → For filtering the frequency band 1930 and 1990 MHz.
4. VC-TCXO (OSC401)
To generate the 13MHz reference clock to drive the logic and RF.
After additional process, the reference clock applies to the U101 Rx IQ demodulator and Tx IQ modulator.
The oscillator for RX IQ demodulator and Tx modulator are controlled by serial data to select channel and use fast lock
mode for GPRS high class operation.
5. SI 4205 (U404)
This chip integrates two differential-input LNAs.
The GSM input supports the GSM850, PCS input supports the DCS1900. The LNA inputs are matched to the 200 ohm
differential output SAW filters through eternal LC matching network.
Image-reject mixer downconverts the RF signal to a 100 KHz intermediate frequency(IF) with the RFLO from frequency
synthesizer. The RFLO frequency is between 1737.8 ~ 1989.9 MHz.
The Mixer output is amplified with an analog programmable gain amplifier(PGA), which is controlled by AGAIN.
The quadrature IF signal is digitized with high resolution A/D converts (ADC).
Also, this chip down-converts the ADC output to baseband with a digital 100 KHz quadrature LO signal. Digital
decimation and IIR filters perform channel selection to remove blocking and reference interface signals.
After channel selection, the digital output is scaled with a digital PGA, which is controlled with the DGAIN. DACs drive
a differential analog signal onto the RXIP, RXIN, RXQP, RXQN pins to interface to standard analog-input baseband IC.
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Circuit Description
2) TX PART
Baseband IQ signal fed into offset PLL, this function is included inside of U404 chip.
SI4205 chip generates modulator signal which power level is about 1.5dBm and fed into Power Amplifier(U403).
The PA output power and power ramping are well controlled by Auto Power Control circuit. We use offset PLL below
Modulation Spectrum
200kHz offset
30 kHz bandwidth
GSM
-35dBc
PCS
-35dBc
400kHz offset
30 kHz bandwidth
GSM
-66dBc
PCS
-65dBc
600kHz ~ 1.8MHz offset
30 kHz bandwidth
GSM
-75dBc
PCS
-68dBc
2. Baseband Circuit description of SGH-N707
1) CSP2200B1
1. Power Management
Seven low-dropout regulators designed specifically for GSM applications power the terminal and help ensure optimal
system performance and long battery life. A programmable LDO provides support for 1.8V, 3.0V SIMs, while a
self-resetting, electronically fused switch supplies power to external accessories. Ancillary support functions, such as two
LED drivers and two call-alert drivers, aid in reducing both board area and system complexity. A four-wire serial interface
unit(SIU) provides access to control and configuration registers. This interface gives a microprocessor full control of the
CSP2200B1 and enables system designers to maximize both standby and talk times. Error reporting is provided via an
interrupt signal and status register. Supervisory functions. including a reset generator, an input voltage monitor, and a
thermal monitor, support reliable system design. These functions work together to ensure proper system behavior during
start-up or in the event of a fault condition(low microprocessor voltage, insufficient battery energy, or excessive die
temperature).
2. Battery Charge Management
A battery charge management block, incorporating an internal PMOS switch, and an 8-bit ADC, provides fast, efficient
charging of single-cell Li-Ion battery. Used in conjunction with a current-limited voltage source, this block safely
conditions near-dead cells and provides the option of having fast-charge and top-off controlled internally or by the system's
microprocessor.
3. Backlight LED Driver
The backlight LED driver is a low-side, programmable current source designed to control the brightness of the keyboard
illumination.
LED1_DRV is controlled via LED1_[0:2] and can be programmed to sink from 15mA to 60mA in 7.5mA
steps. LED2_DRV is controlled via LED2_[0:2] and can be programmed to sink from 5mA to 40mA in 5mA steps.
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Circuit Description
Both LED drivers are capable of sinking their maximum output current at a worst-case maximum output voltage of 0.6V.
For efficient use, the LEDs is connected between the battery and the LED_DRV output.
4. Vibrator Motor Driver
The vibrator motor driver is a independent voltage regulator to drive a small dc motor that silently alerts the user of an
incoming call. The driver is a 3.0V constant source while sinking up to 180mA and controlled by enable signal of main
chip. For efficient use and safety, the vibrator motor should be connected between the regulator output and the ground.
2) LCD
LCD is consisted of main LCD(B/W STN LCD). Chip select signals of EMI part in the trident, LCD_CS, can enable
main LCD. VDD_EL signal enables EL of main LCD. In sleep mode,
EL are turned off.
These two signals are from IO part of the DSP in the trident. RST signal from CSP2200B1 initiates the initial process of
the LCD.
16-bit data lines(D(0)~D(15)) transfers data and commands to LCD . Data and commands use A(2) signal. If this signal is
high, Inputs to LCD are commands. If it is low, Inputs to LCD are data.
The signals which inform the input or output state to LCD, are required. But this system is not necessary for read enable
signal. CP_WEN signal is only used to write data or commands to LCD.
Power signal for operating LCD driver is VCCD.
3) JTAG Connector
Trident has two JTAG ports which are for ARM core and DSP core(DSP16000). So this system has two port connector
for these ports. Pins' initials for ARM core are 'CP_' and pins' initials for DSP core are 'DSP_'.
CP_TDI and DSP_TDI signal are used for input of data. CP_TDO and DSP_TDO signals are used for the output of the
data. CP_TCK and DSP_TCK signals are used for clock because JTAG communication is a synchronous. CP_TMS and
DSP_TMS signals are test mode signals. The difference between these is the RESET_INT signal which is for ARM core
RESET.
4) Keypad
This is consisted of key interface pins in the trident, KEY_ROW[0~4] and KEY_COL[0~4]. These signals compose the
matrix. Result of matrix informs the key status to key interface in the trident. Some pins are connected to varistor for
ESD protection. And power on/off key is seperated from the matrix.
So power on/off signal is connected with CSP2200 to enable CSP2200.
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Circuit Description
5) IF connetor
It is 18-pin connector, and separated into two parts. One is a power supply part for main system. And the other is
designed to use SDS, DEBUG, DLC-DETECT, JIG_ON, TA, VF, and GND. They connected to power supply IC,
microprocessor and signal processor IC.
6) Audio
AOUTAP, AOUTAN from CSP2200 is connected to the speaker via analog switch.
MICIN and MICOUT are connected
to the main MIC.
YMU759 is a LSI for portable telephone that is capable of playing high quality music by utilizing FM synthesizer and
ADPCM decorder that are included in this device.
As a synthesis, YMU759 is equipped 16 voices with different tones. Since the device is capable of simultaneously
generating up to synchronous with the play of the FM synthesizer, various sampled voices can be used as sound effects.
Since the play data of YMU759 are interpreted at anytime through FIFO, the length of the data(playing period) is not
limited, so the device can flexibly support application such as incoming call melody music distribution service. The
hardware sequencer built in this device allows playing of the complex music without giving excessive load to the CPU of
the portable telephones. Moreover, the registers of the FM synthesizer can be operated directly for real time sound
generation, allowing, for example, utilization of various sound effects when using the game software installed in the
portable telephone.
YMU759 includes a speaker amplifier with high ripple removal rate whose maximum output is 550mW (SPVDD=3.6V).
The device is also equipped with conventional function including a vibartor and a circuit for controlling LEDs synchornous
with music.
7) Memory
This system uses AMD's memory,
S71JL064HA0BAW110.
It is consisted of 64M bits flash memory and 16M bits PSRAM. It has 16 bit data line, D[0~15] which is connected to
trident, LCD or CSP2200. It has 22 bit address lines, A[0~21]. They are also connected. CP_CSROMEN signal, chip
select signal in the trident, enable flash memories. They use 2.8 volt supply voltage, VCCD.
During wrting process, CP_WEN is low and it enables writing process to flash memory and PSRAM. During reading
process, CP_OEN is low and it output information which is located at the address from the trident in the flash memory or
PSRAM to data lines. Each chip select signals in the trident select flash memory or PSRAM. Reading or writing
procedure is processed after CP_WEN or CP_OEN is enabled. Memories use RST. A[0] signal enables lower byte of
PSRAM and UPPER_BYTE signal enables higher byte of PSRAM.
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Circuit Description
8) Trident
Trident is consisted of ARM core and DSP core. It has 20K*16bits RAM 144K*16bits ROM in the DSP. It has
4K*32bits ROM and 2K*32bits RAM in the ARM core. DSP is consisted of timer, one bit input/output unit(BIO), JTAG,
EMI and HDS(Hardware Development System). ARM core is consisted of EMI, PIC(Programmable Interrupt Controller),
reset/power/clock unit, DMA controller, TIC(Test Interface Controller), peripheral bridge, PPI, SSI(Synchronous Serial
Interface), ACCs(Asynchronous communications controllers), timer, ADC, RTC(Real-Time Clock) and keyboard interface.
DSP_AB[0~8], address lines of DSP core and DSP_DB[0~15], data lines of DSP core are connected to CSP2200. A[0~20],
address lines of ARM core and D[0~15], data lines of ARM core are connected to memory, LCD and YMU762.
ICP(Interprocessor Communication Port) controls the communication between ARM core and DSP core.
CSROMEN, CSRAMEN and CS1N to CS4N in the ARM core are connected to each memory. WEN and OEN control the
process of memory. External IRQ(Interrupt ReQuest) signals from each units, such as, YMU, Ear-jack, Ear-mic and
CSP1093, need the compatible process.
Some PPI pins has many special functions. CP_KB[0~9] receive the status from key FPCB and are used for the
communications using data link cable(DEBUG_DTR/RTS/TXD/RXD/CTS/DSR).
And UP_CS/SCLK/SDI, control signals for CSP2200 are outputted through PPI pins. It has signal port for
charging(CHG_DET), SIM_RESET and FLIP_SNS with which we knows open.closed status of folder. It has JTAG control
pins(TDI/TDO/TCK) for ARM core and DSP core. It recieves 13MHz clock in CKI pin from external TCXO and receives
32.768KHz clock from X1RTC. ADC(Analog to Digital Convertor) part receives the status of temperature, battery type and
battery voltage. And control signals(DSP_INT, DSP_IO and DSP_RWN) for DSP core are used. It enables main LCD with
DSP IP pins.
9) X-TAL(13MHz)
This system uses the 13MHz TCXO. AFC control signal form CSP1093 controls frequency from 13MHz x-tal. . This
clock is fed to CSP1093,Trident,YMU759 and Silab solution.
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3. SGH-N707 Exploded View and its Parts list
1. Cellular phone Exploded View-1
QMW02
QFR01
QKP01
QMO02
QSP01
QLC41
QME01
QMI01
QCR05
QMP01
QAN05
QAN01
QRE01
QCR04
QIF01
QRE02
QRF01
QBA21
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Exploded view and its Part list
2. Cellular phone Parts list
Location
Description
NO.
SEC CODE
QMW02
PMO-MAIN WINDOW
GH72-13316A
QFR01
MEC-FRONT COVER
GH75-04537A
QIF01
PMO-IF COVER
GH72-16745A
QKP01
MEC-KEYPAD ASSY
GH75-04539A
QSP01
SPEAKER
3001-001576
QMO02
MOTOR
3101-001328
QMP01
MIAN PBA
GH92-01773A
QLC41
LCD
GH07-00548A
QME01
UNIT METAL DOME
GH59-01456A
QMI01
MICROPHONE ASSY
GH30-00125A
QCR05
SCREW
6001-001478
QAN05
MEC-INTENA RUBBER
GH75-05620A
QRE01
REAR COVER
GH75-04538A
QCR04
SCREW-MACHINE
6001-001479
QRE02
PMO-REAR BUMPER
GH72-16829A
QRF01
MPR-R/F COVER
GH74-08243A
QBA21
BATTERY-820MAH
GH43-01358A
QAN01
ANTENNA
GH42-00429A
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Remark
Exploded view and its Part list
3. Test Jig (GH80-00865A)
3-1. RF Test Cable
3-2. Test Cable
(GH39-00182A)
3-3. Serial Cable
(GH39-00127A)
3-4. Power Supply Cable
3-5. DATA CABLE
(GH39-00143B)
3-6. TA
(GH44-00284A)
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4. SGH-N707 MAIN Electrical Parts List
SEC CODE
Design LOC
SEC CODE
Design LOC
0403-001387
ZD629
1405-001082
ZD608
0403-001427
ZD628
1405-001082
ZD609
0403-001511
ZD301
1405-001082
ZD610
0404-001172
D501
1405-001082
ZD611
0406-001150
ZD501
1405-001082
ZD612
0406-001150
ZD502
1405-001082
ZD613
0501-000481
Q301
1405-001082
ZD614
0504-001113
Q102
1405-001082
ZD615
0601-001094
LED601
1405-001082
ZD616
0601-001094
LED602
1405-001082
ZD617
0601-001094
LED605
1405-001082
ZD618
0601-001094
LED606
1405-001082
ZD619
0601-001094
LED607
1405-001082
ZD620
0601-001094
LED608
1405-001082
ZD621
0601-001094
LED631
1405-001082
ZD622
0601-001094
LED632
1405-001082
ZD623
0601-001094
LED633
1405-001082
ZD624
0601-001094
LED634
2007-000138
R103
0601-001094
LED635
2007-000138
R113
0601-001094
LED636
2007-000138
R424
0601-001956
LED610
2007-000140
R515
0801-000796
U102
2007-000140
R516
1001-001261
U501
2007-000140
R617
1003-001395
U302
2007-000140
R618
1109-001309
U202
2007-000140
R619
1201-002177
U403
2007-000140
R620
1203-001917
U601
2007-000140
R621
1203-003109
U107
2007-000140
R622
1203-003304
U101
2007-000140
R623
1204-001811
U502
2007-000140
R624
1205-002433
U404
2007-000140
R625
1209-001219
U203
2007-000140
R627
1405-001082
ZD601
2007-000140
R628
1405-001082
ZD602
2007-000140
R629
1405-001082
ZD603
2007-000141
R420
1405-001082
ZD604
2007-000148
R109
1405-001082
ZD605
2007-000148
R110
1405-001082
ZD606
2007-000148
R202
1405-001082
ZD607
2007-000148
R214
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Electrical Parts List
SEC CODE
Design LOC
SEC CODE
Design LOC
2007-000148
R423
2007-001217
R631
2007-000148
R510
2007-001217
R632
2007-000148
R512
2007-001217
R633
2007-000157
R207
2007-001217
R634
2007-000157
R609
2007-001217
R635
2007-000157
R610
2007-001217
R636
2007-000162
R111
2007-001292
R502
2007-000162
R112
2007-001292
R503
2007-000162
R114
2007-001319
R101
2007-000162
R201
2007-001325
R507
2007-000162
R206
2007-002797
R421
2007-000162
R501
2007-003001
R422
2007-000162
R511
2007-003025
R630
2007-000162
R513
2007-007100
R205
2007-000164
R504
2007-007138
R402
2007-000171
R102
2007-007142
R208
2007-000171
R104
2007-007308
R211
2007-000171
R105
2007-007308
R212
2007-000171
R106
2007-008117
R107
2007-000171
R108
2203-000189
C310
2007-000171
R210
2203-000189
C311
2007-000171
R213
2203-000189
C312
2007-000171
R302
2203-000189
C313
2007-000171
R425
2203-000189
C314
2007-000171
R426
2203-000233
C110
2007-000171
R509
2203-000233
C401
2007-000171
R518
2203-000233
C402
2007-000171
R519
2203-000233
C423
2007-000171
R521
2203-000233
C429
2007-000690
R301
2203-000233
C430
2007-000775
R505
2203-000233
C431
2007-000775
R506
2203-000233
C440
2007-001119
R517
2203-000233
C502
2007-001217
R601
2203-000233
C503
2007-001217
R602
2203-000233
C505
2007-001217
R605
2203-000233
C508
2007-001217
R606
2203-000254
C201
2007-001217
R607
2203-000254
C202
2007-001217
R608
2203-000254
C203
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Electrical Parts List
SEC CODE
Design LOC
SEC CODE
Design LOC
2203-000254
C204
2203-001652
C113
2203-000254
C205
2203-005061
C103
2203-000254
C206
2203-005061
C106
2203-000254
C207
2203-005061
C117
2203-000254
C208
2203-005061
C119
2203-000254
C212
2203-005061
C124
2203-000254
C418
2203-005061
C213
2203-000254
C419
2203-005061
C214
2203-000254
C438
2203-005061
C217
2203-000254
C441
2203-005061
C218
2203-000254
C442
2203-005061
C222
2203-000254
C443
2203-005061
C223
2203-000254
C449
2203-005061
C422
2203-000278
C530
2203-005061
C506
2203-000425
C439
2203-005061
C510
2203-000438
C512
2203-005061
C513
2203-000628
C220
2203-005061
C532
2203-000628
C221
2203-005065
C302
2203-000628
C407
2203-005065
C305
2203-000628
C410
2203-005065
C306
2203-000628
C435
2203-005065
C307
2203-000654
C504
2203-005065
C523
2203-000679
C211
2203-005065
C609
2203-000812
C107
2203-005065
C610
2203-000812
C108
2203-005281
C411
2203-000812
C109
2203-005281
C413
2203-000812
C436
2203-005288
C408
2203-000885
C303
2203-005288
C409
2203-000995
C414
2203-005446
C450
2203-000995
C434
2203-005480
C219
2203-001072
C101
2203-005482
C304
2203-001072
C102
2203-005482
C501
2203-001072
C114
2203-005496
C118
2203-001072
C215
2203-005496
C209
2203-001072
C216
2203-005496
C210
2203-001405
C507
2203-005509
C515
2203-001598
C111
2203-005509
C521
2203-001598
C112
2203-006093
C115
2203-001598
C116
2203-006093
C120
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Electrical Parts List
SEC CODE
Design LOC
2203-006093
C315
2203-006257
C121
2203-006257
C122
2203-006324
C104
2203-006324
C105
2404-001086
C511
2404-001239
C602
2404-001268
C123
2404-001281
C417
2404-001281
C433
2404-001305
C529
2404-001339
C509
2404-001348
C406
2703-002102
L401
2703-002201
L402
2703-002201
L405
2703-002624
L301
2703-002665
L403
2801-003747
OSC201
2809-001264
OSC401
2909-001236
U402
3705-001287
U401
3709-001335
CN101
3710-002017
CN601
4302-001130
BAT101
GH09-00028A
U201
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5. SGH-N707 Block Diagrams
1. RF Solution Block Diagram
Si 42 05 (U404)
LN A
PG A
ADC
PG A
ADC
Channel
Fi lt er
PCS RX ( 1960MHz )
Mi x e r
GSM RX (869~984 MHz)
LN A
PG A
DAC
I
PG A
DAC
Q
10 0
kH z
RF
Connector
(U401)
Fr ont
En d
Mod ule
CS P
22 00 B1
(U402)
RF
PLL
IF
PLL
(U101)
VCT CXO
(OSC401)
SDATA
PCS TX
(1850 ~ 1910 MHz)
SCLK
SENB
PDNB
Dua l PA M
(U403)
PD
GSM TX
(824 ~ 849MH z)
LPF
I
Q
Bryce Park
5-1
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Block Diagrams
2. Base Band Solution Block Diagram
STN-LCD
128 x 64
B/W(WINTEK)
MEMORY
NOR
64Mb Flash
+16Mb PSRAM
Keypad Without
Volume Side key
Melody-16
YMU759
RF I/F
(Si4205)
5-2
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6. SGH-N707 PCB Diagrams
1. Main PCB Top Diagram
6-1
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PCB Diagrams
2. Main PCB Bottom Diagram
6-2
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7. SGH-N707 Flow Chart of Troubleshooting
1. Power On
The set is not ' Power On '
Check the current consumption
No
Current consumption
>=100mA
Download again
Yes
Check the +VBATT Voltage
No
Voltage >= 3.3V
Charge the Battery
Yes
Check the pin of U101
No
Check U101 and C112
pin#J12 of U101 >= 2.8V
Yes
pin#A13 of U101 = 2.8V
No
No
Yes
pin#G11 = 1.8V
Check U101 and C115
Yes
Check the clock signal
at pin#R6
Freq = 13MHz
No
Check the clock generation circuit
(related to OSC401)
Yes
Check the initial operation
END
7-1
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Flow Chart of Troubleshooting
2. Initial
Initialization Failure
Yes
The pin#G11 of U101 = 1.8V
and
the pin#J12 of U101 ≒ 2.825V
?
No
Check the U101
(If it has some problem, adjust it.)
Yes
No
Is the pin#K9 of U101
"Low -> High"?
Check the U101
(If it has some problem, adjust it.)
Yes
No
32.768kHz wave forms at
the C220 and C221
Check the U201
Yes
No
The Voltage is "High" at
the C112
Check the U101
Yes
No
Check the LCD Part
LCD display is O.K
Yes
No
Sound is O.K
Check the Audio Part
Yes
END
7-2
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Flow Chart of Troubleshooting
DSP_DB(0:15)
DSP_AB(0:8)
DSP_I
O
DSP_RW
N
FLASH_RESET
D2 DB15
D3 DB14
E3 DB13
E2 DB12
F3 DB11
F2 DB10
F1 DB9
F4 DB8
G4 DB7
G3 DB6
H5 DB5
J6 DB4
J5 DB3
K3 DB2
K2 DB1
K1 DB0
K5 AB8
K7 AB7
M1 AB6
M2 AB5
N2 AB4
N1 AB3
L5 AB2
P1 AB1
K6 AB0
L3 I|O
L2 RWN
R3 RESETN_CSP
VCCD
C102
56PF
VCCD
C103
100NF
C105
2.2UF
10V
C106
100NF
C109
33PF
2.2UF
C111
C108
33PF
56PF
C114
VCCA
2.2UF
C116
VRF
C113
16V
470NF
16V
AGND
TA_VEXT
CN101
NC
1
VCC
2
VCC
3
CLK
4
GND
5
VPP
6
I/O
7
5000-6P-2.2L
8
NC
9
NC
10 NC
C107
33PF
C115
VCC_1.8A
1UF
6.3V
2.2UF
16V
C121
470nF
C112
C123
10UF
10V
VCCD
(rf-5000-6P-2.2L)
C117
100NF
C124
100NF
VBAT
VCCA
C101
56PF
VBAT
C104
2.2UF
10V
VCCB
MELODY_VI
B
INTRQ
PWR_KEEP
RST
KEY_COL(2)
KEY_ROW(0
)
JIG_ON
TA_VEXT
VRT
C
POS 1
C110
100PF
NEG 2
DCS_TX_EN
GSM_TX_EN
R101
1.2K
R114
100K
VCCD
BAT101
RB414_IV02N
_CHG8
U107
MAX1508ETA
1 VL
BATT7
_EN 5
_ACOK6
2 IN
3 GND
9 10 11 12
G G GG
4 ISET
R107
2.7K, 1%
VCCD
R115
NC
VBAT
CHG_DET
CHG_ON
ICHRG
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VDD34C11
VDD12J13
SIMCLK
10K
RTCALARM
VREF
UP_SDI
TP106
UP_SCLK
UP_CS
VIB_EN
BL_KEY_LED
FL_LED
SIMRST
SIMDATA
K11
SIM_RST
K14
SIM_CLK
VSIM K12
VLDO_7C12
VRTCH11
G12
LED2_DRV
G13
LED1_DRV
F13
RING_DRV
F15
VIB_DRV
VLDO_6A14
VL5S_BC9
10K
UP_I
O P10
SIM_IOJ11
470nF
0
0
N9
UP_CLK
R10
UP_RST
C122
R109
C118
220NF
R106
R105
3
2
R110
R111
100K
7-3
AGND
U101
CSP2200B1
VL4S_AA12
VL5S_AD10
VLDO_5B10
VL4S_BB11
VLDO_4B12
VLDO_3A13
VLDO_2J12
VLDO_1G11
VACCF14
K8
CSN_PSC
L8
SCLK_PSC
VEXTE14
VBATE13
N7
SDO_PSC
M7
SDI_PSC
E11
CH_BDRV
F12
CH_ISEN
D14
CH_RES
VREFA10
CREFE9
H10
2
1
Q102
DTC144EM
1
D15
ADC_AUX2
E10
ADC_AUX1
GND
A
B
VCC
5
VBAT
Y
R112
100K
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DSP_DB(15)
DSP_DB(14)
DSP_DB(13)
DSP_DB(12)
DSP_DB(11)
DSP_DB(10)
DSP_DB(9)
DSP_DB(8)
DSP_DB(7)
DSP_DB(6)
DSP_DB(5)
DSP_DB(4)
DSP_DB(3)
DSP_DB(2)
DSP_DB(1)
DSP_DB(0)
DSP_AB(8)
DSP_AB(7)
DSP_AB(6)
DSP_AB(5)
DSP_AB(4)
DSP_AB(3)
DSP_AB(2)
DSP_AB(1)
DSP_AB(0)
E6 OCTL0
C5 OCTL1
F5 OCTL2
E5 OCTL3
A4 OCTL4
G6 OCTL5
B3 OCTL6
A3 OCTL7
B1 SERLE1
A2 SERLE2
C1 SERDA
C2 SERCK
R102
0
U102
4
3
TC7S32FU
RTC_ALM
N
SI_EN
100
100
AGND
C120
1UF
6.3V
AGND
RTC_CLK
XOENAQ
MC
NC7
DINTR
DSP_INT
PWR_SW
2
PWR_SW1N
PSW1_BUF
RESET_O
MODE
PWR_KEEP
INTRQ
VIB_RNG_EN
C14
C15
L7
K9
N10
M9
L10
L9
PWR_ON
0
R104
TX_EN
R113
R103
MICINP
MICINN
MICOUTP
MICOUTN
XOENA
TX_BAND_SEL
SERCLK
0
TP102
TP103
TP104
TP105
N4
D1
R6
P5
P3
CLK32K
AOUTAP
AOUTAN
AOUTBP
AOUTBN
MICINP
MICINN
MICOUTP
MICOUTN
AUXINP
AUXINN
AUXOUTP
AUXOUTN
VXVCM
VREGP
VREGN
DAICK
DAIRN
DAIDI
DAIDO
P11
N12
R12
P12
N14
M14
N15
P15
M15
L14
K13
L13
R13
M13
R14
R4
P4
L6
M6
AOUTAP
AOUTAN
SERLE
SERDAT
R108
AGND
RXTXI
P
RXTXI
N
RXTXQ
P
RXTXQ
N
RAREF2
RAREF1
RXTXI
P
RXTXI
N
RXTXQP
RXTXQN
C119
GND_OCTLB4
VDD_OCTLC4
GNDV P13
VDDV L11
GNDB F6
VDDB A6
GNDD M10
VDDD N11
VSS4 P6
VSS3 R2
VSS2 K4
VSS1 G5
VDD_IO2 J4
VDD_IO1 N5
VDD3 N6
VDD2 M3
VDD1 J3
GND_HCURF11
GND_PSC2K15
GND_PSC1B15
GNDQ E8
VDD67 B13
VDD5 C10
CLK13M_M
C
NC6 2
NC5 1
GNDS17 K10
GNDS16 J10
GNDS15 J9
GNDS14 J8
GNDS13 J7
GNDS12 H9
GNDS11 H8
GNDS10 H7
GNDS9 H6
GNDS8 G10
GNDS7 G9
GNDS6 G8
GNDS5 G7
GNDS4 F10
GNDS3 F9
GNDS2 F8
GNDS1 F7
AUX_ADC3 D13
AFC
TXP
B5
B6
D7
D6
C7
C6
100NF
D9
E7
AFC
TXPOWER
Flow Chart of Troubleshooting
3. SIM Part
"Insert SIM" is displayed on the LCD
Yes
No
Are there any Signals at
pin#N9, #R10, #P10 of U101?
Check the U102
Yes
No
Are there any Signals at
pin#K12, #K11, #K14, #J11 of
CN101?
Check the U101
Yes
Check the SIM Card
END
7-4
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Flow Chart of Troubleshooting
4. Charging Part
Abnormal charging operation
No
The pin#17, #18 of
CN601 is TA_VEXT ≒
5V ?
Replace TA or Check CN601
Yes
No
Check the U107
The pin#7 of U107 >=3.3V?
Yes
The ICHRG = 1.4V(during
No
charging) and ≒ 180mV(full
Solder again or change R107
charging) ?
Yes
END
7-5
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Flow Chart of Troubleshooting
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
CP_WEN
G
D1
D0
24
23
22
21
20
100K
100K
56
19
18
G
SPVSS
SPVDD
EQ3
EQ2
EQ1
HPOUTR
17
9
36
16
15
14
13
12
11
10
35
R512
R510
C510
100NF
G
HPOUT-L/MONO
8
C528
NC
C517
NC
C512
1NF
R507
3.3K
7
U502
YMU759-QE2
34
R511
C516
NC
R513
C527
NC
22NF
C521
C515
C533
NC
R509
C509
4.7UF
10V
VBAT
R505
33K
C520
NC
MSPK+
AOUTAP
AUDIO_OUT_SEL
C506
100NF
0
R502
MIC501
OBG-415L44-C33P
33
C502
100PF
C505
100PF
10
9
8
7
6
R501
100K
V+
5
4
3
2
1
R521
0
C501
100NF
0
C508
100PF
R518
RB520S-30
D501
0
C523
1UF
10V
R519
R520
NC
VCCA VBAT
U501
MAX4684ETB
NO2
COM1
NO1
IN2
IN1
COM2
NC2
GND
NC1
G
G
G
G
14
13
12
11
VIB_EN
ZD502
RSB6.8S-TE61
RSB6.8S-TE61
R503
C503
100PF
33
VBAT
C532
100NF
ZD501
RSB6.8S-TE61
RSB6.8S-TE61
TP503
TP504
AOUTAN
MSPK-
TP501
TP502
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MELODY_VIB
1K
C504
270PF
C534
NC
C535
NC
7-6
MSPK-
C530
10PF
R515
R517
680
VCCA
33K
150K
MSPK+
R504
330NF
330NF
C529
33UF
6.3V
R506
C513
100NF
VCCD
C507
C511
4.7UF
6.3V
10K
10K
R516
1K
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25
/WR
D3
EXT1
33
26
27
28
2
EXT2
VDD
SDIN
SYNC
SCLK
1
SDOUT
G
D7
PLLC
29
30
31
32
34
D6
IFSEL
YMU_EN
A(0)
CP_OEN
CLK13M_YM
U
RST
YMU_IRQ
MICINP
MICOUTP
MICINN
MICOUTN
D5
/RST
SPOUT1
VREF
SPOUT2
VSS
D4
/IRQ
D2
CLKI
Flow Chart of Troubleshooting
5. Microphone Part
Microphone does not work
Yes
No
Is the assembled status of
microphone O.K?
Reassemble the microphone
Yes
Check the reference voltage on Mic path
No
Solder the microphone again or
C529 > 2.5V
Replace around Mic Circuit
Yes
No
Is microphone ok ?
Check U101
Yes
END
7-7
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Flow Chart of Troubleshooting
6. Speaker Part
There is no sound from Speaker
No
Is the terminal of Speaker
O.K.?
Replace the Speaker
Yes
The type of sound
from the Speaker is
Melody
Yes
Are there any signals
at the pin#5 and
pin#7 of U501?
Yes
The pin#4 of
U501 is
"Low"
No
No
No
Are there any signals
at the pin#2 and
pin#10 of U501?
Yes
Yes
Yes
Check U501
No
The pin#4 of
U501 is
"High"
No
Check U101
Check U502
END
7-8
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Flow Chart of Troubleshooting
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
G
D1
D0
24
23
22
21
20
100K
100K
56
19
18
G
SPVSS
SPVDD
EQ3
EQ2
EQ1
HPOUTR
17
9
36
16
15
14
13
12
11
10
35
R512
R510
C510
100NF
G
HPOUT-L/MONO
8
C528
NC
C517
NC
C512
1NF
R507
3.3K
7
U502
YMU759-QE2
34
R511
C516
NC
R513
C527
NC
22NF
C521
C515
C533
NC
R509
C509
4.7UF
10V
VBAT
R505
33K
C520
NC
MSPK+
AOUTAP
AUDIO_OUT_SEL
C506
100NF
0
R502
MIC501
OBG-415L44-C33P
33
C502
100PF
C505
100PF
10
9
8
7
6
R501
100K
V+
5
4
3
2
1
R521
0
C501
100NF
0
C508
100PF
R518
RB520S-30
D501
0
C523
1UF
10V
R519
R520
NC
VCCA VBAT
U501
MAX4684ETB
NO2
COM1
NO1
IN2
IN1
COM2
NC2
GND
NC1
G
G
G
G
14
13
12
11
VIB_EN
ZD502
RSB6.8S-TE61
RSB6.8S-TE61
R503
C503
100PF
33
VBAT
C532
100NF
ZD501
RSB6.8S-TE61
RSB6.8S-TE61
TP503
TP504
AOUTAN
MSPK-
TP501
TP502
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MELODY_VIB
1K
C504
270PF
C534
NC
C535
NC
7-9
MSPK-
C530
10PF
R515
R517
680
VCCA
33K
150K
MSPK+
R504
330NF
330NF
C529
33UF
6.3V
R506
C513
100NF
VCCD
C507
C511
4.7UF
6.3V
10K
10K
R516
1K
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25
/WR
D3
EXT1
33
26
27
28
SDIN
SYNC
2
EXT2
VDD
29
30
SCLK
1
SDOUT
G
D7
PLLC
CP_WEN
A(0)
31
32
34
D6
IFSEL
YMU_EN
CP_OEN
CLK13M_YM
U
RST
YMU_IRQ
MICINP
MICOUTP
MICINN
MICOUTN
D5
/RST
SPOUT1
VREF
SPOUT2
VSS
D4
/IRQ
D2
CLKI
Flow Chart of Troubleshooting
8. GSM Reciever
CONTINUOUS RX ON
RF INPUT : 190CH
AMP : -50dBm
NO
NORMAL CONDITION
catch the channel?
Check soldered status of
R426,L402,C450
YES
NO
U402 CHECK
pin#8 ≥ -65dBm ?
YES
NO
U402 CHECK
pin#2,3 ≥ -65dBm ?
YES
NO
U404 CHECK
pin#20,21 ≥ -65dBm ?
U401
resolder or change
U402
resolder or change
C408,L401,C409
resolder or change
YES
U404 CHECK
pin8 : 13MHz ?
Vp-p : 860mV?
NO
OSC401 CHECK
13MHz ?
Vp-p : 950mV?
NO
OSC401 CHECK
clean 3V?
YES
YES
OSC401
Resolder or
Change?
U404 CHECK
pin#9 : clean 3V?
NO
U101 pin#39
check or resolder
YES
U404 pin#1,2,3,28
Vp-p : 100mV?
NO
U404
resolder or change
YES
CHECK
U101
7-10
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Flow Chart of Troubleshooting
9. GSM transmitter
NO
U402 pin#8 :
about 2~3 dBm?
U402
pin#1 : 3 V?
NO
U101
check & change
CONTINUS TX ON CONDITION
TX POWER DAC:500 CODE APPLIED
CH:190
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
YES
YES
U401, C407
check&change
NO
C414
≒ 4~5dBm?
YES
U403
check & change
NO
BATTERY, U404
check & change
C423 : 3.7 V?
YES
NO
Between
R402 & U403 :
1.2V?
U101
check & change
YES
YES
NO
NO
R402
check & change
C434 :
≒ -5dBm ?
YES
U403
change
NO
U404 pin#32
: 3V ?
YES
U101 pin#C4
change or resolder
NO
U404
pin#8 : 13MHz?
Vp-p: 950mV
OSC401
pin#3 : 13MHz?
Vp-p : 950mV
YES
NO
OSC401
change or resolder
YES
NO
U404
pin#9 : 3V?
U101
check or change
0SC401
pin#4 : 3V ?
NO
U101 pin#C4
change or resolder
YES
U101
change or resolder
YES
NO
U404
pin#4,5 : 1.7V ?
YES
U101
change
U404
change or resolder
7-11
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Flow Chart of Troubleshooting
10. PCS Receiver
CONTINUOUS RX ON
RF INPUT : 660 CH
AMP : -50dBm
NO
NORMAL CONDITION
catch the channel?
Check soldered status of
R426, L402, C450
YES
NO
U402 CHECK
pin#8 ≥ -65dBm ?
YES
NO
U402 CHECK
pin#4,5 ≥ -65dBm ?
YES
NO
U404 CHECK
pin#16,17 ≥ -65dBm ?
U401
resolder or change
U402
resolder or change
C411,L403,C413
resolder or change
YES
U404 CHECK
pin#8 : 13MHz ?
Vp-p : 860mV?
NO
OSC401 CHECK
13MHz ?
Vp-p : 950mV?
NO
OSC401 CHECK
clean 3V?
YES
YES
OSC401
Resolder or
Change?
U404 CHECK
pin#9 : clean 3V?
NO
U101 pin#39
check or resolder
YES
U404 pin#1,2,3,28
Vp-p : 100mV?
NO
U404
resolder or change
YES
CHECK
U101
7-12
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Flow Chart of Troubleshooting
11. PCS transmitter
NO
U402 pin#8 :
about 2~3 dBm?
U402
pin#6 : 3 V?
NO
CONTINUOUS TX ON CONDITION
U101
check & change
CH : 660CH(PCS)
TX POWER CODE: 350 CODE Aplied
YES
RBW : 100KHz
VBW : 100KHz
YES
U401,C407
check&change
SPAN : 10MHz
C435:
≒ 4~5dBm?
NO
REF LEV. : 10dBm
ATT. : 20dB
YES
U403
check & change
NO
BATTERY, U404
check & change
C423 : 3.7 V?
YES
Between
R402 & U403
: 1.2V?
NO
U101
check
YES
YES
NO
NO
R402
check & change
C436:
≒ -5dBm ?
YES
U404
change or resolder
NO
U404 pin#32
: 3V ?
YES
U101 pin#39
change or resolder
U404
pin#8 : 13MHz?
Vp-p : 950mV
NO
OSC401
13MHz?
Vp-p : 950mV
YES
U404
pin#9 : 3V?
NO
OSC401
change or resolder
YES
NO
U101
check or change
OSC401
pin#4 : 3V ?
NO
U101 pin#39
change or resolder
YES
YES
NO
U101
change or resolder
U404
pin#4,5 : 1.7V ?
YES
U101
change
U404
change or resolder
7-13
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
GSM_PAM_I
N
12
C422
100NF
11 13 15 16 17
C414
C437
NC
C435
47PF
22PF
C412
NC
CLK13M_TR
GSM_TX_OUT
DCS_TX_OUT
TX_EN
TX_BAND_SEL
GSM_PAM_I
N
DPCS_PAM_I
N
GSM_LNA_IN_N
GSM_TX_EN
DCS_TX_EN
33PF
47PF
GSM_TX_OUT
DCS_TX_OUT
C434
C436
21
22
23
RFIGN
25
C402
100PF
24
26
C401
100PF
C417
22UF
6.3V
27
28
10
C418
10NF
L405
C452
33nH
NC
1
4
OUT 2
G2
U401
MS-156(02)
3
IN
G1
2
GSM-RX
3
GSM-R
X
4
PCS-RX
PCS-RX
5
PCS-RX
PCS-RX
C407
22PF
G
7 91 0 12 14
8
ANT
VC1
VC1
VC2
VC2
GSM-TX
PCS-TX
PCS-TX
G G GG
U402
1
6
13
11
8
GND
RXIP
RXQN
RXIN
TXIP
TXIN
TXQP
TXQN
7
6
5
4
3
2
1
35
36
C419
10NF
VRF
LMSP54KA-246TEMP
29 30 31 32 33 34
9
U404
SI4205-BMF
11
C404
NC
C450
2.7PF
1PF
L402
33nH
1PF
C408
C409
1.5PF
1.5PF
C411
C413
XOENA
13MHZ_SI
RXTXIP
RXTXIN
RXTXQP
RXTXQN
L401
L401
33nH
L403
5.6nH
R426
C453
NC
0
ANT2
L404
NC
GSM_LNA_IN_N
GSM_LNA_IN_P
PCS_LNA_IN_N
PCS_LNA_IN_P
R425
0
ANT
SAMSUNG Proprietary-Contents may change without notice
1
6
TX_EN
7
BS
GSM850/900I
GSM850/900I
N
14
GSM850/900OUT
GSM850/900OUT
DCS/PCSI
N
10
DCS/PCSOUT
VRAMP
VBATT
VBATT
38
18PF
CLK13M_MC
RFIGP
RFIDN
RFIDP
RFIPN
RFIPP
12
CLK13M_RF
SI_EN
SERLE
SERCLK
SERDAT
This Document can not be used without Samsung's authorization
9
4
5
2
C439
100PF
20
19
18
17
16
GND
13
C431
100PF
7-14
27K,1%
C410
22PF
C433
22UF
6.3V
2.2K
U403
TQM7M4022
R420
C440
CLK13M_YM
U
GSM_LNA_IN_P
PCS_LNA_IN_N
PCS_LNA_IN_P
15
14
C430
100PF
GND
C406
100UF
6.3V
10NF
560
100
C429
100PF
XIN
C438
R421
R424
RXQP
_PDN
10NF
VRF
R422
12
10NF
GND
GND
GND
VDD
GND
GND
VDD
C441
4
OSC401
VC-TCXO-208C3
VC-TCXO-208C3
1
C442
XOUT
SDO
DPCS_PAM_I
N
C423
100PF
10K
VT VCC
CLK13M_RF
XEN
_SEN
RFOG
R402
VBAT
VBAT
R423
2
OUT 3
GND
C449
10NF
DIAG1
SDI
TXPOWER
13MHZ_SI
AFC
C443
10NF
DIAG2
SCLK
RFOD
VCC
GND
GND
GND
GND
GND
GND
GND
GND
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