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SGH-N700

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

SAMSUNG Anycall

CONTENTSSAMSUNG Anycall

Samsung Electronics Co.,Ltd. January. 2005

Printed in Korea.

Code No.: GH68-06532A

BASIC.

ⓒThis Service Manual is a property of Samsung Electronics Co.,Ltd.Any unauthorized use of Manual can be punished under applicableInternational and/or domestic law.

SAMSUNG Proprietary-Contents may change without notice

1. SGH-N700 Specification

This Document can not be used without Samsung's authorization

1-1

GSM900Phase 1

EGSM 900Phase 2

DCS1800Phase 1

Freq. Band[MHz]Upl ink/Downlink

890~915935~960

880~915925~960

1710~17851805~1880

ARFCN range 1~124 0~124 & 975~1023 512~885

Tx/Rx spac ing 45MHz 45MHz 95MHz

Mod. Bi t rate/Bi t Per iod

270.833kbps3.692us

270.833kbps3.692us

270.833kbps3.692us

Time SlotPer iod/Frame Period

576.9us4.615ms

576.9us4.615ms

576.9us4.615ms

Modula t ion 0.3GMSK 0.3GMSK 0.3GMSK

MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm

Power Class 5pcl ~ 15pcl 5pcl ~ 19pcl 0pcl ~ 15pcl

Sensi t iv i ty -102dBm -102dBm -100dBm

TDMA Mux 8 8 8

Cel l Radius 35Km 35Km 2Km

1. GSM General Specification

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Specification

1-2

TX Power

control levelGSM900

5 33±2 dBm

6 31±2 dBm

7 29±2 dBm

8 27±2 dBm

9 25±2 dBm

10 23±2 dBm

11 21±2 dBm

12 19±2 dBm

13 17±2 dBm

14 15±2 dBm

15 13±2 dBm

16 11±3 dBm

17 9±3dBm

18 7±3 dBm

19 5±3 dBm

TX Power

control levelDCS1800

0 30±2 dBm

1 28±3 dBm

2 26±3 dBm

3 24±3 dBm

4 22±3 dBm

5 20±3 dBm

6 18±3 dBm

7 16±3 dBm

8 14±3 dBm

9 12±4 dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

2. GSM TX power class


2. SGH-N700 Circuit Description


2-1

1. SGH-N700 RF Circuit Description

1) RX PART

1. FEM(U402(SWITCHPLEXER+FILTER)) → Switching Tx, Rx path for E`GSM900, and DCS1800 by logic controlling.

2. FEM Control Logic (U402) → Truth Table

VC1 VC2

DCS / PCS Tx Mode L H

GSM Tx Mode H L

GSM / DCS 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 925 ~ 960 MHz

- DCS FILTER(U402(SWITCHPLEXER+FILTER)) → For filtering the frequency band 1805 and 1880 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 U900 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 E-GSM, DCS input supports the DCS1800. 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 1849.8~1879.9MHz.

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.


Circuit Description

2-2

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 offset30 kHz bandwidth

GSM -35dBc

DCS -35dBc

400kHz offset30 kHz bandwidth

GSM -66dBc

DCS -65dBc

600kHz ~ 1.8MHz offset30 kHz bandwidth

GSM -75dBc

DCS -68dBc

2. Baseband Circuit description of SGH-N700

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.


Circuit Description


2-3

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.

8-bit data lines(D(0)~D(7)) 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.


Circuit Description

2-4

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.


Circuit Description


2-5

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.

8) 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.


Circuit Description

2-6


3. SGH-N700 Exploded Views and Parts List

3-1


1. Cellular phone Exploded View-1

QIF01

QMP01

QMO01QSP01

QLC01

QME01

QMI01

QCR05

QKP01

QFR01

QMW02

QAN02

QAN05

QRE01

QRF01

QBA21

QCR04


Exploded Views and Parts List

3-2


2. Cellular phone Parts list

Location

NO.Description SEC CODE Remark

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

QMO01 MOTOR GH31-00047A

QMP01 MIAN PBA GH92-01986A

QLC01 LCD GH07-00623A

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

QRF01 MPR-R/F COVER GH74-08243A

QBA21 BATTERY-820MAH GH43-01599A

QAN02 INTENNA GH42-00444A



3-3


3. Test Jig (GH80-00865A)

3-1. RF Test Cable

(GH39-00182A)

3-2. Test Cable

(GH39-00127A)

3-3. Serial Cable

3-4. Power Supply Cable 3-5. DATA CABLE

(GH39-00143B)

3-6. TA

(GH44-00284A)



3-4



4. SGH-N700 Electrical Parts List

4-1


SEC CODE Design LOC

0403-001387 ZD629

0403-001427 ZD628

0403-001511 ZD301

0404-001172 D501

0406-001150 ZD501

0406-001150 ZD502

0501-000481 Q301

0504-001113 Q102

0601-001094 LED601

0601-001094 LED602

0601-001094 LED605

0601-001094 LED606

0601-001094 LED607

0601-001094 LED608

0601-001094 LED631

0601-001094 LED632

0601-001094 LED633

0601-001094 LED634

0601-001094 LED635

0601-001094 LED636

0601-001956 LED610

0801-000796 U102

1001-001261 U501

1003-001395 U302

1109-001309 U202

1201-002177 U403

1203-001917 U601

1203-003109 U107

1203-003304 U101

1204-001811 U502

1205-002433 U404

1209-001219 U203

1405-001082 ZD601

1405-001082 ZD602

1405-001082 ZD603

1405-001082 ZD604

1405-001082 ZD605

1405-001082 ZD606

1405-001082 ZD607

SEC CODE Design LOC

1405-001082 ZD608

1405-001082 ZD609

1405-001082 ZD610

1405-001082 ZD611

1405-001082 ZD612

1405-001082 ZD613

1405-001082 ZD614

1405-001082 ZD615

1405-001082 ZD616

1405-001082 ZD617

1405-001082 ZD618

1405-001082 ZD619

1405-001082 ZD620

1405-001082 ZD621

1405-001082 ZD622

1405-001082 ZD623

1405-001082 ZD624

2007-000138 R103

2007-000138 R113

2007-000138 R424

2007-000140 R515

2007-000140 R516

2007-000140 R617

2007-000140 R618

2007-000140 R619

2007-000140 R620

2007-000140 R621

2007-000140 R622

2007-000140 R623

2007-000140 R624

2007-000140 R625

2007-000140 R627

2007-000140 R628

2007-000140 R629

2007-000141 R420

2007-000148 R109

2007-000148 R110

2007-000148 R202

2007-000148 R214


Electrical Parts List

4-2


SEC CODE Design LOC

2007-000148 R423

2007-000148 R510

2007-000148 R512

2007-000157 R207

2007-000157 R609

2007-000157 R610

2007-000162 R111

2007-000162 R112

2007-000162 R114

2007-000162 R201

2007-000162 R206

2007-000162 R501

2007-000162 R511

2007-000162 R513

2007-000164 R504

2007-000171 R102

2007-000171 R104

2007-000171 R105

2007-000171 R106

2007-000171 R108

2007-000171 R210

2007-000171 R213

2007-000171 R302

2007-000171 R425

2007-000171 R426

2007-000171 R509

2007-000171 R518

2007-000171 R519

2007-000171 R521

2007-000690 R301

2007-000775 R505

2007-000775 R506

2007-001119 R517

2007-001217 R601

2007-001217 R602

2007-001217 R605

2007-001217 R606

2007-001217 R607

2007-001217 R608

SEC CODE Design LOC

2007-001217 R631

2007-001217 R632

2007-001217 R633

2007-001217 R634

2007-001217 R635

2007-001217 R636

2007-001292 R502

2007-001292 R503

2007-001319 R101

2007-001325 R507

2007-002797 R421

2007-003001 R422

2007-003025 R630

2007-007100 R205

2007-007138 R402

2007-007142 R208

2007-007308 R211

2007-007308 R212

2007-008117 R107

2203-000189 C310

2203-000189 C311

2203-000189 C312

2203-000189 C313

2203-000189 C314

2203-000233 C110

2203-000233 C401

2203-000233 C402

2203-000233 C423

2203-000233 C429

2203-000233 C430

2203-000233 C431

2203-000233 C440

2203-000233 C502

2203-000233 C503

2203-000233 C505

2203-000233 C508

2203-000254 C118

2203-000254 C201

2203-000254 C202



4-3


SEC CODE Design LOC

2203-000254 C203

2203-000254 C204

2203-000254 C205

2203-000254 C206

2203-000254 C207

2203-000254 C208

2203-000254 C212

2203-000254 C418

2203-000254 C419

2203-000254 C438

2203-000254 C441

2203-000254 C442

2203-000254 C443

2203-000254 C449

2203-000278 C530

2203-000425 C410

2203-000425 C439

2203-000438 C512

2203-000628 C220

2203-000628 C221

2203-000628 C407

2203-000628 C435

2203-000654 C504

2203-000679 C211

2203-000812 C107

2203-000812 C108

2203-000812 C109

2203-000812 C436

2203-000870 C450

2203-000885 C303

2203-000995 C434

2203-001072 C101

2203-001072 C102

2203-001072 C114

2203-001072 C215

2203-001072 C216

2203-001383 C412

2203-001405 C507

2203-001598 C111

SEC CODE Design LOC

2203-001598 C112

2203-001598 C116

2203-001652 C113

2203-005061 C103

2203-005061 C106

2203-005061 C117

2203-005061 C119

2203-005061 C124

2203-005061 C213

2203-005061 C214

2203-005061 C217

2203-005061 C218

2203-005061 C222

2203-005061 C223

2203-005061 C422

2203-005061 C506

2203-005061 C510

2203-005061 C513

2203-005061 C532

2203-005065 C302

2203-005065 C305

2203-005065 C306

2203-005065 C307

2203-005065 C523

2203-005065 C609

2203-005065 C610

2203-005288 C408

2203-005288 C409

2203-005288 C411

2203-005288 C413

2203-005480 C219

2203-005482 C304

2203-005482 C501

2203-005496 C209

2203-005496 C210

2203-005509 C515

2203-005509 C521

2203-006093 C115

2203-006093 C120



4-4


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

2703-001512 L401

2703-001751 L405

2703-002201 C451

2703-002204 L402

2703-002624 L301

2703-002759 L403

2801-003747 OSC201

2809-001264 OSC401

2909-001225 U402

3705-001287 U401

3709-001335 CN101

3710-002017 CN601

4302-001130 BAT101

GH09-00029A U201


5. SGH-N700 Block Diagrams

5-1

1. RF Solution Block Diagram

EGSM RX (925~960 MHz)

LN A

PGA

PGA ADC

ADC

VCT CXO(OSC401)

EGSM TX(880 ~ 91 5 MHz)

DCS TX(1710 ~ 17 85 MHz)

Dua l PA M(U403)

Fr ontEn d

Mod ule

(U402)

RFCone ctor

(U401)

Si42 05 (U404)

RFPLL

IFPLL

PD

LPF

Mi x er

Cha

nnel

Fi lt

er

PGA

PGA DAC

DAC

10 0kH z

CSP22 00 B1

(U101)

Bryce Park

I

Q

I

Q

SDATA

SCLK SENBPDNB

LN A

DCS RX ( 1880 MHz)


Block Diagrams


5-2

2. Base Band Solution Block Diagram


6. SGH-N700 PCB Diagrams

6-1

1. Main PCB Top Diagram


PCB Diagrams


5-2

2. Main PCB Bottom Diagram


7. SGH-N700 Flow Chart of Troubleshooting


7-1

1. Power On

Check U101 and C115

Current consumption>=100mA

The set is not ' Power On '

Voltage >= 3.3V

Download again

Charge the Battery

pin#J12 of U101 >= 2.8VCheck U101 and C112

pin#A13 of U101 = 2.8V

Check the clock signalat pin#R6

Freq = 13MHzCheck the clock generation circuit

(related to OSC401)

END

No

Yes

Yes

Yes

Yes

Yes

No

No

No

No

pin#G11 = 1.8VNo

Yes

Check the +VBATT Voltage

Check the pin of U101

Check the initial operation

Check the current consumption


Flow Chart of Troubleshooting

7-2

2. Initial

The pin#G11 of U101 = 1.8Vand

the pin#J12 of U101 ≒ 2.825V?

Initialization Failure

Check the U101(If it has some problem, adjust it.)

END

No

Yes

Is the pin#K9 of U101"Low -> High"?

Yes

Check the U20132.768kHz wave forms at

the C220 and C221

Check the LCD Part

Yes

No

Yes

Yes

The Voltage is "High" atthe C112

Check the Audio Part

No

Check the U101(If it has some problem, adjust it.)

Check the U101

LCD display is O.K

No

No

Yes

Yes

Sound is O.K

No




7-3

(3.0V)

(3.0V)

(3.0V)

(3.0V)

(3.0V)

, 1%

(3.0V)

(1.8V)

(3.0V)

(3.0V)

(3.0V)

(3.0V)

(rf-5000-6P-2.2L)

NC

8N

C9

NC

10N

C

VC

C1

VC

C2

VP

P5

CN

101

5000-6P-2.2(L)

CLK

3

GN

D46

I/O7

_EN

5

NC

R115

11G

G12

GN

D3 2

IN

4IS

ET

VL

1

6_A

CO

K

8_C

HG

U107

MA

X1508E

TA

BA

TT7

9G

10G

AG

ND

R112

100K

100NF

VC

CB

VC

CD

C103

C111

2.2UF

16V

R105

0

VR

F

100R

113

VB

AT

C118

10NF

10KR

110

VXVCMR13

XOENAQ D1

0R104

VLD

O_6

A14

VLD

O_7

C12

VR

EF

A10

VREGNR14VREGPM13

VR

TC

H11

K12

VS

IM

VSS1 G5VSS2 K4VSS3 R2VSS4 P6

F15

VIB_RNG_EN L9

A12

VL4S

_AV

L4S_B

B11

VL5S

_AD

10V

L5S_B

C9

VLD

O_1

G11

VLD

O_2

J12V

LDO

_3A

13V

LDO

_4B

12

VLD

O_5

B10

VD

D34

C11

VDD5 C10VDD67 B13

VDDB A6

VDDD N11

VDDV L11

VDD_IO1 N5VDD_IO2 J4

VDD_OCTL C4

VE

XT

E14

VIB

_DR

V

K11

SIM

_RS

T

TXPE7

N9

UP

_CLK

UP

_IOP

10U

P_R

ST

R10

VA

CC

F14

VB

AT

E13

J3VDD1

VD

D12

J13

VDD2 M3VDD3 N6

C6RXTXQP C7

SC

LK_P

SC

L8

SD

I_PS

CM

7S

DO

_PS

CN

7

SE

RC

KC

2C

1S

ER

DA

B1

SE

RLE

1A

2S

ER

LE2

SIM

_CLK

K14

SIM

_IOJ11

RAREF1 B6RAREF2 B5

R3

RE

SE

TN

_CS

P

K9 RESET_O

F13

RIN

G_D

RV

H10

RTC_ALMN

RTC_CLK N4

RW

NL2

RXTXIND6D7 RXTXIP

RXTXQN

C5

OC

TL1

OC

TL2

F5

E5

OC

TL3

A4

OC

TL4

OC

TL5

G6

OC

TL6

B3

A3

OC

TL7

PSW1_BUF L7

PWR_KEEP M9

PWR_SW1N C15PWR_SW2 C14

G12

MCR6

MICINNM14MICINPN14

MICOUTN P15MICOUTP N15

MODEN10

1NC5NC6 2

NC7P5

OC

TL0

E6

G9GNDS8 G10GNDS9 H6

GNDV P13

GND_HCUR F11

GND_OCTL B4

GND_PSC1 B15GND_PSC2 K15

INTRQL10

L3I|O

LED

1_DR

VG

13LE

D2_D

RV

GNDS13 J7GNDS14 J8GNDS15 J9GNDS16 J10

K10GNDS17

GNDS2 F8GNDS3 F9GNDS4 F10GNDS5 G7GNDS6 G8GNDS7

G4

DB

8F

4D

B9

F1

DINTRP3

GNDB F6

GNDD M10

GNDQ E8

GNDS1 F7

H7GNDS10GNDS11 H8

H9GNDS12

DB

11F

3D

B12

E2

DB

13E

3D

B14

D3

D2

DB

15

DB

2K

3 J5D

B3

J6D

B4

DB

5H

5G

3D

B6

DB

7

CH

_ISE

NF

12

CH

_RE

SD

14

E9

CR

EF

K8

CS

N_P

SC

R4 DAICK

DAIDIL6

DAIDOM6

DAIRNP4

DB

0K

1D

B1

K2 F2

DB

10AFC

AOUTANN12AOUTAPP11

AOUTBNP12AOUTBPR12

AUXINNL14AUXINPM15

AUXOUTN L13AUXOUTP K13

D13AUX_ADC3

CH

_BD

RV

E11

K6

P1

AB

1L5

AB

2

N1

AB

3A

B4

N2

M2

AB

5M

1A

B6

K7

AB

7A

B8

K5

AD

C_A

UX

1E

10A

DC

_AU

X2

D15

D9

CS

P2200B

1U

101

AB

0

VC

CD

100NF

C106

2.2UF

C112

C120

1UF

6.3V

R101

16V

1.2K

VBAT

AG

ND

C119 100NF

VC

CD

C123

10UF

VC

CA

10V

16V

2.2UF

C116

0

R103

100

R102

33PF

C107

TP103

100PF

C110

470NF

C113

C109

33PF

PO

S1

AG

ND

TP102

RB

414_IV02N

BA

T101

NE

G2

C122

470nF

AG

ND

10KR

109

R108

0

56PF

C102

AG

ND

TP106

56PF

C114

R106

0

DTC

144EM

Q102

132

VC

C_1.8A

TP104

R107

2.7K

100NF

C117

10V

2.2UF

C104

R114

100K

470nFC

121

VR

TC

VC

CD

A

1B

3 GN

D

5VC

C4

Y

C101

56PF

VB

AT

TC

7S32F

U

U102

2

R111

100K

C124

TP105

1UF

6.3V

100NF

VC

CD

VC

CA

C115

10V2.2U

FC

105

FL_LE

D

JIG_O

N

TA_V

EX

T

C108

33PF

VIB

_EN

GS

M_TX

_EN

DC

S_T

X_E

N

VR

EF

RXTXINRXTXIP

RXTXQNRXTXQP

UP

_SC

LK

UP

_SD

I

TXPOWER

SIM

CLK

SIM

DA

TAS

IMR

ST

BL_K

EY

_LED

CLK13M_MC

MICINNMICINP

MICOUTNMICOUTP

PW

R_K

EE

P

PWR_ON

RS

T

RT

CA

LAR

M

CLK32K

CH

G_O

N

CH

G_D

ET

TA_V

EX

T

AFC

AOUTANAOUTAP

UP

_CS

DSP_INT

DS

P_A

B(7)

DS

P_A

B(6)

DS

P_A

B(5)

DS

P_A

B(4)

DS

P_A

B(3)

DS

P_A

B(2)

DS

P_A

B(1)

DS

P_A

B(0)

VB

AT

ME

LOD

Y_V

IB

DS

P_D

B(8)

DS

P_D

B(7)

DS

P_D

B(6)

DS

P_D

B(5)

DS

P_D

B(4)

DS

P_D

B(3)

DS

P_D

B(2)

DS

P_D

B(15)

DS

P_D

B(14)

DS

P_D

B(13)

DS

P_D

B(12)

DS

P_D

B(11)

DS

P_D

B(10)

DS

P_D

B(1)

DS

P_D

B(0)

DS

P_A

B(8)

ICH

RG

SE

RLE

DS

P_R

WN

FLA

SH

_RE

SE

T

TX_E

NS

I_EN

TX

_BA

ND

_SE

LX

OE

NA

DS

P_IO

DS

P_D

B(9)

SE

RC

LKS

ER

DA

T

DS

P_A

B(0:8)

DS

P_D

B(0:15)

KE

Y_C

OL(2)

KE

Y_R

OW

(0)

INT

RQ



7-4

3. SIM Part

Are there any Signals atpin#N9, #R10, #P10 of U101?

"Insert SIM" is displayed on the LCD

Check the U102

Check the SIM Card

END

No

Yes

Yes

Yes

No

Check the U101Are there any Signals at

pin#K12, #K11, #K14, #J11 ofCN101?




7-5

4. Charging Part

The pin#17, #18 ofCN601 is TA_VEXT ≒

5V ?

Abnormal charging operation

Replace TA or Check CN601

No

END

Yes

The pin#7 of U107 >=3.3V? Check the U107

No

Yes

No

Solder again or change R107

Yes

The ICHRG = 1.4V(during

charging) and ≒ 180mV(full

charging) ?



7-6

EA

R_M

IC_ P

E

AR

_SP

K_N

EA

R_M

IC_ N

E

AR

_SP

K_P

JAC

K_IN

_RE

F

V40 2

AV

LC

5S 02 10

0

56PF

C

435

220NF

C43 0

SB

R125530P

-CT

01 S

PE

AK

E

R

1 1

1 2 2

2

22PF

C438

10V

6.8K

C422

4.7U F

33PF

C

432

R404

27n H L40 1

R443

10

V407

10 R

442

10K,1%

VIB

1

VIB

2

AV

LC

5S 02 10

0 V

401

R429

30K,1%

R

42 2

R435

100N F

C40 2

VC

CA

33K

VB

AT

C43 9

18PF

10 V

1.2N F

C405

10UF

C408

6.3 V

VB

AT

6.3V

2.2U F

C41 2

C436

10UF

R40 8

10K,1%

R44 0

56 K

VC

C D

33UF

C

42 6

C417

220NF

R423

1.5K

R439

56 K

RS

B6.8S

-TE

6 1

ZD

403 Z

D402

RS

B6.8S

-TE

61

C437

6.3V

10UF

1 V

+

VC

040205X150R

V

41 1

3 C

OM

1

9 CO

M2

6 G

ND

IN 1

4

IN 2

8

5 N

C1

7 N

C2

NO

1 2

NO

2 10

U402

MA

X4684E

U

B

33PF

V41 0

VC

040205X150R

VSS

29 /C

S

/IRQ

3

31 /R

D

4

/RST

/W R

28

C429

6

PLL C

SPOUT 1

17 18

SPOUT 2

SP

VD

D 15

16

SPVSS

VD D

7

VREF

9 8

GG

35

36 G

10 H

PO

UT-L/M

ON

O

HP

OU

T-R 11

32 IO

VD

D

2

LED

MT R

19

NC

5

22 D5

21 D6

20 D7

12 E

Q 1

EQ

2 13

14 E

Q 3

G

33

34

A0

30

CLKI

1

27 D

0

D1

26

D2

25 24 D3

D4

23

0

YM

U762C

-QZE

2

U401

220NF

C42 8

R421

1 7

U404-1

LMC

6035IBP

X

4

3 2

8

LMC

6035IBP

X

U404-2

5 6

56P F

VB

AT

220NF

C434

VC

CD

VC

CA

C407

100K

R400

V408

AV

LC 5S

02 10 0

V403

VC

CA

68K,1%

R

40 7

3 4 5 6 7000-2.5G

-DB

1-A

CN

40 1

1 2

C400

C416

GR

P1555C

1H330J

1UF

220N F

C40 4

56K

R437 V

CC

A

0 R

403

R416

R405

1.2 K

3.3K

C427 N

C

R44 1

1M

10

V40 9

R424

1.5 K

R40 2

1.5K

R418

100N F

C42 5

C44 0

47PF

ZD401

UD

ZS5.1B

10 R

40 1

2

IN

1 O

UT

5

RE

F_BY

P 4

1N F

C424

U40 3

MIC

5205-3.0BM

5/T R

3 E

N

GN

D

C431 N

C

C415

100NF

C409 N

C

V40 5

10K,1%

R

41 1

1.5 K R

417

R43 8

10 K

C413

C410

NC

C420

33PF

220NF

R42 8

30K,1%

R41 5

68K,1%

0 R444

R419

22 0

27PF

C40 1

VC

040205X150R

V406

100NF

27n H L40 2

C406

NC

C

418

V404

AV

LC 5S

02 100

C419

10K,1%

R

425

33PF

C411

1U F

C414

220P F

EA

R_S

WITC

H

MIC

INP

MIC

INN

AU

XIN

N

AU

XIN

P

AO

UTB

P

AO

UTB

N

MO

T+

YM

U_V

IB_E

N

RS

T

JAC

K_I N

MIC

+

MIC

-

SP

K1P

S

PK

1N

AU

XO

UT N

AU

XO

UT

P

MIC

OU

TP

MIC

OU

TN

YM

U_LE

D

CP

_WE

N

AO

UTA

P

AO

UTA

N

AU

DIO

_AM

P_E

N

SP

K1P

SP

K1N

YM

U_S

PK

1 N

YM

U_S

PK

1P

D(2)

CLK

13M_Y

MU

YM

U_IR

Q

D(5)

D(6)

D(7)

D(4)

D(3)

D(1)

D(0)

CP

_OE

N

A(0)

YM

U_E

N




7-7

5. Microphone Part

Is the assembled status ofmicrophone O.K?

Microphone does not work

C529 > 2.5V

Reassemble the microphone

Solder the microphone again or

Replace around Mic Circuit

END

No

Yes

Yes

Yes

Yes

No

Is microphone ok ?

No

Check U101

Check the reference voltage on Mic path



7-8

6. Speaker Part

Is the terminal of SpeakerO.K.?

There is no sound from Speaker

No

Replace the Speaker

The pin#4 ofU501 is"Low"

Check U502

The pin#4 ofU501 is"High"

Check U501

Are there any signalsat the pin#5 andpin#7 of U501?

END

Yes

YesNo

The type of soundfrom the Speaker is

Melody

YesNo No

No

Yes

YesYes

Are there any signalsat the pin#2 andpin#10 of U501?

No

Check U101




7-9

EA

R_M

IC_ P

E

AR

_SP

K_N

EA

R_M

IC_ N

E

AR

_SP

K_P

JAC

K_IN

_RE

F

V40 2

AV

LC

5S 02 10

0

56PF

C

435

220NF

C43 0

SB

R125530P

-CT

01 S

PE

AK

E

R

1 1

1 2 2

2

22PF

C438

10V

6.8K

C422

4.7U F

33PF

C

432

R404

27n H L40 1

R443

10

V407

10 R

442

10K,1%

VIB

1

VIB

2

AV

LC

5S 02 10

0 V

401

R429

30K,1%

R

42 2

R435

100N F

C40 2

VC

CA

33K

VB

AT

C43 9

18PF

10 V

1.2N F

C405

10UF

C408

6.3 V

VB

AT

6.3V

2.2U F

C41 2

C436

10UF

R40 8

10K,1%

R44 0

56 K

VC

C D

33UF

C

42 6

C417

220NF

R423

1.5K

R439

56 K

RS

B6.8S

-TE

6 1

ZD

403 Z

D402

RS

B6.8S

-TE

61

C437

6.3V

10UF

1 V

+

VC

040205X150R

V

41 1

3 C

OM

1

9 CO

M2

6 G

ND

IN 1

4

IN 2

8

5 N

C1

7 N

C2

NO

1 2

NO

2 10

U402

MA

X4684E

U

B

33PF

V41 0

VC

040205X150R

VSS

29 /C

S

/IRQ

3

31 /R

D

4

/RST

/W R

28

C429

6

PLL C

SPOUT 1

17 18

SPOUT 2

SP

VD

D 15

16

SPVSS

VD D

7

VREF

9 8

GG

35

36 G

10 H

PO

UT-L/M

ON

O

HP

OU

T-R 11

32 IO

VD

D

2

LED

MT R

19

NC

5

22 D5

21 D6

20 D7

12 E

Q 1

EQ

2 13

14 E

Q 3

G

33

34

A0

30

CLKI

1

27 D

0

D1

26

D2

25 24 D3

D4

23

0

YM

U762C

-QZE

2

U401

220NF

C42 8

R421

1 7

U404-1

LMC

6035IBP

X

4

3 2

8

LMC

6035IBP

X

U404-2

5 6

56P F

VB

AT

220NF

C434

VC

CD

VC

CA

C407

100K

R400

V408

AV

LC 5S

02 10 0

V403

VC

CA

68K,1%

R

40 7

3 4 5 6 7000-2.5G

-DB

1-A

CN

40 1

1 2

C400

C416

GR

P1555C

1H330J

1UF

220N F

C40 4

56K

R437 V

CC

A

0 R

403

R416

R405

1.2 K

3.3K

C427 N

C

R44 1

1M

10

V40 9

R424

1.5 K

R40 2

1.5K

R418

100N F

C42 5

C44 0

47PF

ZD401

UD

ZS5.1B

10 R

40 1

2

IN

1 O

UT

5

RE

F_BY

P 4

1N F

C424

U40 3

MIC

5205-3.0BM

5/T R

3 E

N

GN

D

C431 N

C

C415

100NF

C409 N

C

V40 5

10K,1%

R

41 1

1.5 K R

417

R43 8

10 K

C413

C410

NC

C420

33PF

220NF

R42 8

30K,1%

R41 5

68K,1%

0 R444

R419

22 0

27PF

C40 1

VC

040205X150R

V406

100NF

27n H L40 2

C406

NC

C

418

V404

AV

LC 5S

02 100

C419

10K,1%

R

425

33PF

C411

1U F

C414

220P F

EA

R_S

WITC

H

MIC

INP

MIC

INN

AU

XIN

N

AU

XIN

P

AO

UTB

P

AO

UTB

N

MO

T+

YM

U_V

IB_E

N

RS

T

JAC

K_I N

MIC

+

MIC

-

SP

K1P

S

PK

1N

AU

XO

UT N

AU

XO

UT

P

MIC

OU

TP

MIC

OU

TN

YM

U_LE

D

CP

_WE

N

AO

UTA

P

AO

UTA

N

AU

DIO

_AM

P_E

N

SP

K1P

SP

K1N

YM

U_S

PK

1 N

YM

U_S

PK

1P

D(2)

CLK

13M_Y

MU

YM

U_IR

Q

D(5)

D(6)

D(7)

D(4)

D(3)

D(1)

D(0)

CP

_OE

N

A(0)

YM

U_E

N



7-10

U402 CHECKpin#8 ≥ -65dBm ?

7. EGSM Reciever

CONTINUOUS RX ONRF INPUT : 62CHAMP : -50dBm

NORMAL CONDITIONcatch the channel?

U404 CHECKpin8 : 13MHz ?Vp-p : 860mV?

U402 CHECKpin#2,3 ≥ -65dBm ?


Check soldered status ofR426,L402,C450

U401resolder or change


C408,L401,C409resolder or change

OSC401 CHECKclean 3V?

U404 CHECKpin#9 : clean 3V?

U101 pin#39check or resolder

U404 pin#1,2,3,28Vp-p : 100mV? U404

resolder or change

CHECKU101

NO

YESNO

NO

NO

NO NO

NO

NO

YES

YES

YES

YES

YES

YES

OSC401 CHECK13MHz ?

Vp-p : 950mV?

OSC401Resolder or

Change?

YES




7-11

8. EGSM transmitter

U402 pin#8 :about 2~3 dBm?

U401, C407check&change

U402pin#1 : 3 V?

U101check & change

L405≒ 4~5dBm?

U402check & change

C423 : 3.7 V?

NO NO

YES

YES

YES

NO

NOBATTERY, U403check & change

BetweenR402 & U403 :

1.2V?

YES

NOR402

check & change

C434 :≒ -5dBm ?

YES

YES

U403change

U101check & change

YES

NO

U404 pin#32: 3V ?

U101 pin#C4change or resolder

YES

U900pin#4,5 : 1.7V ?

YES

U101change

NO

NO

U404change or resolder

YES

U404pin#8 : 13MHz?Vp-p: 950mV

U404pin#9 : 3V?

YES

OSC401pin#3 : 13MHz?Vp-p : 950mV

OSC401change or resolder

U101check or change

0SC401pin#4 : 3V ?

U101 pin#C4change or resolder


NONO

YES

NO

YES

NO

CONTINUS TX ON CONDITIONTX POWER DAC:500 CODE APPLIED

CH:62RBW : 100KHzVBW : 100KHzSPAN : 10MHz

REF LEV. : 10dBmATT. : 20dB

NO



7-12

U402 CHECKpin#8 ≥ -65dBm ?

9. DCS Receiver

CONTINUOUS RX ONRF INPUT : 698CH

AMP : -50dBm

NORMAL CONDITIONcatch the channel?

U404 CHECKpin#8 : 13MHz ?Vp-p : 860mV?



Check soldered status ofR426,L402,C450



C411,L403,C413resolder or change

OSC401 CHECKclean 3V?

U404 CHECKpin#9 : clean 3V?

U101 pin#39check or resolder

U404 pin#1,2,3,28Vp-p : 100mV? U404

resolder or change

CHECKU101

NO

YESNO

NO

NO

NO NO

NO

NO

YES

YES

YES

YESYES

YES

YES

OSC401 CHECK13MHz ?

Vp-p : 950mV?

OSC401Resolder or

Change?




7-13


10. DCS transmitter

U402 pin#8 :about 2~3 dBm?

U401,C407check&change

U402pin#6 : 3 V?

U101check & change

C435:≒ 4~5dBm?

U402check & change

C423 : 3.7 V?

NO NO

YES

YES

YES

NO

NOBATTERY, U403check & change

BetweenR402 & U403

: 1.2V?

YES

NO R402check & change

NO

C436:≒ -5dBm ?

YES

YES

YES

U101check

NO

U404 pin#3: 3V ?

U101 pin#39change or resolder

YES

U404pin#5 : 1.7V ?

U101change

NO

NO


YES

U404pin#8 : 13MHz?Vp-p : 950mV

U404pin#9 : 3V?

YES

YES

OSC40113MHz?

Vp-p : 950mV

OSC401change or resolder

U101check or change

OSC401pin#4 : 3V ?

U101 pin#39change or resolder


NONO

YES

NO

YES

NO

CONTINUOUS TX ON CONDITION

CH : 698CH(DCS),660CH(PCS)

TX POWER CODE: 350 CODE Aplied

RBW : 100KHz

VBW : 100KHz

SPAN : 10MHz

REF LEV. : 10dBm

ATT. : 20dB



7-14

(3.0

V)

(3.0

V)

6.8n

H

100P

FC

431

100P

FC

402

22U

FC

433

6.3V

C41

018

PF

100P

FC

430

C43

633

PF

22P

FC

435

L403

NC

L404

26

XIN

8

XOUT

27

_PDN

10

_SEN

12

C44

110

NF

14

SDO

11

TX

IN5

TX

IP4

TX

QN

7

TX

QP

6

VDD

9

VDD

32

XEN

16RFOD22

RFOG

23

RX

IN32

RX

IP

RX

QN

1

RXQP

28

SCLK

13

SDI

GND

GND

35 36G

ND

RFI

DN

19

RFI

DP

18

RF

IGN

21

RF

IGP

20

RFI

PN

17

RF

IPP

U40

4

DIAG1

24

DIAG2

25

GN

D15

GND

2930

GNDGND

3133

GND

34

27K

,1%

R40

2

SI4

205-

BM

R

C44

9

10N

F

10N

F

L401

C41

8

GS

M-R

X2 3

GS

M-R

XG

SM

-TX

13

VC

11 6

VC

2

27nH

AN

T

DC

S-R

X4 5

DC

S-R

XD

CS

-TX

G 7

G 910G

G 1214G

VR

F

U40

2LM

SP

54K

A-2

498 10

NF

C41

9

100N

F

10N

F

C42

2

R42

3

C44

3

10K

41

VT

C41

722

UF

6.3V

OS

C40

1V

C-T

CX

O-2

08C

3

2G

ND

3O

UT

VC

C

NC

C43

7

C44

010

0PF

VR

F

C40

7C

401

22P

F10

0PF

C40

9

C43

918

PF

C41

31P

F

1PF

3PF

C45

0

R42

50

C45

2N

C33nH

C45

1

C43

810

NF

GND

1617

GND

GS

M85

0/90

0IN

1

GS

M85

0/90

0OU

T14 6

TX

_EN

VB

AT

T5

VCC12

VR

AM

P4

DC

S/P

CS

IN9

DC

S/P

CS

OU

T10

GND

23

GNDGND

811

GNDGND

1315

GND

U40

3T

QM

7M40

22

BS

7

3.9n

HL4

05G

1

4

G2

IN1

OU

T2

12R42

2

MS

-156

(02)

U40

1

3

C44

210

NF

C40

610

0UF

6.3V

VB

AT

AN

T2

C40

4N

C22

nHL4

02

R42

156

0

2.2K

R42

0

100P

FC

429

47P

FC

434

R42

4

C40

81P

F

1PF

C41

1

100

C41

20.

5PF

C42

310

0PF

0R

426

NC

C45

3

RX

TX

IN

RX

TX

IP

RX

TX

QN

RX

TX

QP

SE

RC

LK

SE

RD

AT

XO

EN

A

CLK

13M

_RF

13M

HZ_

SI

SI_

EN

SE

RLE

GS

M_P

AM

_IN

DP

CS

_PA

M_I

N

GS

M_L

NA

_IN

_P

GS

M_L

NA

_IN

_N

DC

S_T

X_E

N

DC

S_L

NA

_IN

_P

DC

S_L

NA

_IN

_N

GS

M_T

X_O

UT

AN

T

DP

CS

_PA

M_I

N

TX_B

AN

D_S

EL

AF

C

CLK

13M

_RF

CLK

13M

_MC

CLK

13M

_TR

13M

HZ_

SI

CLK

13M

_YM

U

GS

M_T

X_O

UT

DC

S_T

X_O

UT

DC

S_L

NA

_IN

_P

DC

S_L

NA

_IN

_N

GS

M_L

NA

_IN

_N

GS

M_L

NA

_IN

_P

GS

M_T

X_E

N

DC

S_T

X_O

UT

TX

PO

WE

R

TX

_EN

GS

M_P

AM

_IN

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