Samsung SGH X495 Service Manual. Www.s Manuals.com. Manual

User Manual: Phone Samsung SGH-X495 - Service manuals and Schematics, Disassembly / Assembly. Free.

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GSM TELEPHONE
SGH-X495

CONTENTS

GSM TELEPHONE
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 Electronics Co.,Ltd. June. 2005
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.: GH68-07423A
BASIC.

1. Specification
1-1. GSM General Specification
GSM850
Pha s e 1

DCS 1 8 0 0
Pha s e 1

PC 1 9 0 0
Ph a se 1

F r eq . B a n d [M Hz ]
Up l in k / Do w n li n k

8 2 4 ~8 4 9
8 6 9 ~8 9 4

1 7 1 0 ~1 7 8 5
1 8 0 5 ~1 8 8 0

1 8 5 0 ~1 9 1 0
1 9 3 0 ~1 9 9 0

A RF C N r a n g e

1 2 8 ~2 5 1

5 1 2 ~8 8 5

5 1 2 ~8 1 0

T x /R x s p ac in g

4 5 MH z

9 5 M Hz

8 0 M Hz

Mo d . B i t r at e/
Bi t Pe r 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

2 7 0 .8 3 3 k b p s
3 .6 9 2 u s

Ti me Sl o t
P er io d / F r am e P er i o d

5 7 6 .9 u s
4 . 6 1 5 ms

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 GMS K

0 .3 GM SK

0 .3 G MS K

M S P o we r

3 3 d Bm ~5 d B m

3 0 d Bm ~0 d B m

3 0 d B m~0 d B m

Po w er C l as s

5 p cl ~ 1 9 p c l

0pcl ~ 15pcl

0pcl ~ 15pcl

Se n si t iv i t y

- 1 0 2 d Bm

- 1 0 0 d Bm

-100dBm

TDM A M u x

8

8

8

C el l Ra d iu s

35Km

2 Km

2Km

1-1

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Specification

1-2. GSM TX power class
TX Power
control level

GSM850

TX Power

DCS1800

control level

TX Power
control level

PCS1900

5

33±2 dBm

0

30±3 dBm

0

30±3 dBm

6

31±2 dBm

1

28±3 dBm

1

28±3 dBm

7

29±2 dBm

2

26±3 dBm

2

26±3 dBm

8

27±2 dBm

3

24±3 dBm

3

24±3 dBm

9

25±2 dBm

4

22±3 dBm

4

22±3 dBm

10

23±2 dBm

5

20±3 dBm

5

20±3 dBm

11

21±2 dBm

6

18±3 dBm

6

18±3 dBm

12

19±2 dBm

7

16±3 dBm

7

16±3 dBm

13

17±2 dBm

8

14±3 dBm

8

14±3 dBm

14

15±2 dBm

9

12±4 dBm

9

12±4 dBm

15

13±2 dBm

10

10±4 dBm

10

10±4 dBm

16

11±3 dBm

11

8±4dBm

11

8±4dBm

17

9±3dBm

12

6±4 dBm

12

6±4 dBm

18

7±3 dBm

13

4±4 dBm

13

4±4 dBm

19

5±3 dBm

14

2±5 dBm

14

2±5 dBm

15

0±5 dBm

15

0±5 dBm

1-2

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2. Circuit Description
2-1. SGH-X495 RF Circuit Description
2-1-1. RX PART
- ASM(U100) → Switching Tx, Rx path for GSM850, DCS1800, PCS1900 by logic controlling.
- ASM Control Logic (U100)

→ Truth Table

VC1

VC2

VC3

Tx Mode (GSM850)

H

L

L

Tx Mode (DCS1800/1900)

L

H

L

Rx Mode (GSM850)

L

L

L

Rx Mode (DCS1800)

L

L

L

Rx Mode (PCS1900)

L

L

H

- FILTER
To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band.
- GSM FILTER (F101) → For filtering the frequency band between 869 and 894 MHz
- DCS FILTER (F102) → For filtering the frequency band between 1805 and 1880 MHz.
- PCS FILTER (F100) → For filtering the frequency band between 1930 and 1990 MHz.
- VC-TCXO (OSC101)
This module generates the 26MHz reference clock to drive the logic and RF. After division by two a reference clock of
13MHz is supplied to the other parts of the system through the pin CLKOUT. After additional process, the reference
clock applies to the U100 Rx IQ demodulator and Tx IQ modulator. And then, the oscillator is controlled by serial data
to select channel and use fast lock mode for GPRS high class operation.
- Transceiver (U101)
The receiver front-end which amplifies the GSM, DCS aerial signal, converts the chosen channel down to a low IF signal
of 100 kHz. The first stages are symmetrical low noise amplifiers (LNAs). The LNAs are followed by an IQ down mixer.
It consists of two mixers in parallel but driven by quadrature out of phase LO signals. The In phase (I) and Quadrature
phase (Q) IF signals are low pass filtered to provide protection from high frequency offset interferes. The low IF I and Q
signals are then fed into the channel filter. The front-end low IF I and Q outputs enter the integrated bandpass channel
filter with provision for five 8 dB gain steps in front of the filter.

2-1-2. TX PART
I and Q baseband signals are applied to the IQ modulator that shifts the modulation spectrum up to the transmit IF. It is
designed for low harmonic distortion, low carrier leakage and high image rejection to keep the phase error as small as
possible.
2-1

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Circuit Description

The modulator is loaded at its IF output by an integrated low pass filter that suppress unwanted spurs prior to get into
the phase detector. The clock drive is generated by division of the RFLO signal provided for the transmit offset mixer.
Baseband IQ signal fed into offset PLL, this function is included inside of U101 chip. OSC100 chip generates modulator
signal which power level is about 6.5dBm and fed into Power Amplifier(U102). The PA output power and power ramping
are well controlled by Auto Power Control circuit. We use offset PLL below table.

Modulation Spectrum

200kHz offset
30 kHz bandwidth

GSM

-35dBc

DCS

-35dBc

400kHz offset
30 kHz bandwidth

GSM

-66dBc

DCS

-65dBc

600kHz ~ 1.8MHz offset
30 kHz bandwidth

GSM

-75dBc

DCS

-68dBc

2-2. Baseband Circuit description of SGH-X495
2-2-1. PCF50601
- Power Management
Ten low-dropout regulators designed specifically for GSM applications power the terminal and help ensure optimal system
performance and long battery life. A programmable boost converter provides support for 1.8V, 3.0VSIMs, while a selfresetting, electronically fused switch supplies power to external accessories. Ancillary support functions, such as RTC
module and High Voltage Charge pump, Clock generator, aid in reducing both board area and system complexity.
I2C BUS serial interface provides access to control and configuration registers. This interface gives a microprocessor full
control of the PCF50601 and enables system designers to maximize both standby and talk times.
Supervisory functions. including a reset generator, an input voltage monitor, and a temperature sensor, 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).
-Backlight Brightness Modulator
The Backlight Brightness Modulator (BBM) contains a programmable Pulse-width modulator (PWM) and FET
to modulate the intensity of a series of LED? s or to control a DC/DC converter that drives LCD backlight.
This phone (SGH-X495) use PWM control to contrast the backlight brightness.
- Clock Generator
The Clock Generator (CG) generates all clocks for internal and external usage. The 32768 Hz crystal
oscillator provides an accurate low clock frequency for the PCF50601 and other circuitry.

2-2

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Circuit Description

2-2-2. LCD Connector
LCD is consisted of main LCD(color 65K UFB LCD) and sub LCD (B/W LCD).
Chip select signals LCD_MAIN_CS and LCD_SUB_CS, can enable Each LCD. BACKLIGHT signal enables white LED
of main LCD. "LCD_RESET" signal initiates the reset process of the LCD.
16-bit data lines(HD(0)~HD(15)) transfers data and commands to LCD. Data and commands use "HA(1)" signal. If this
signal is low, inputs to LCD are commands. If it is high, inputs to LCD are data.
The signal which informs the state of LCD is whether input or output, is required. But in this system, there is no input
state from LCD. So only "HA(1)" signal is used to indicate write data or command to LCD. Power signals for LCD are
"VBAT and "VDD3".
"SPK_P" and "SPK_N" are used for audio speaker containing voice or melody. And "VDD_VIB" from PCF50601
enables the motor.

2-2-3. Key
This is consisted of key interface pins among OM6359, KBIO(0:7). These signals compose the matrix. Result of matrix
informs the key status to key interface in the OM6359. Power on/off key is separated from the matrix. So power on/off
signal is connected with PCF50601 to enable PCF50601. Twelve key LEDs are use the "VDD_KEY" as supply voltage.
"FLIP" informs the status of folder (open or closed) to the OM6359. This uses the hall effect IC, A321ELH-SAMSUNG.
A magnet under main LCD enables A321ELH-SAMSUNG.

2-2-4. EMI ESD Filter
This system uses the EMI ESD filter, EMIF09 to protect noise from IF CONNECTOR part.

2-2-5. IF connetor
It is 18-pin connector. They are designed to use VBAT, V_EXT_CHARGE, TXD0, RXD0, RTS0, CTS0, JIG_REC,
CHARGER_OK, RXD1, TXD1, AUX_MIC, AUX_SPK and GND. They connected to power supply IC, microprocessor
and signal processor IC.

2-2-6. Battery Charge Management
A complete constant-current/constant-voltage linear charger is used for single cell lithium-ion batteries.
If TA connected to phone, "+DCVOLT" enable charger IC and supply current to battery.
When fault condition caused, "CHG_ON" signal level change low to high and charger IC stop charging
process.

2-2-7. Audio
EARP_P and EARP_N from OM6359 are connected to the main speaker. MIC_P and MIC_N are connected to the main
MIC. YMU788 is a synthesizer LSI for mobile phones. It is a LSI as an input/output device for sound sources, which is
the mobile phones, such as MP3, AAC, etc, in addition to ringing-melodies.
As a synthesis, YMU788 is equipped 32 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 YMU788 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.
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Circuit Description

The hardware sequencer built in this device allows playing of the complex music without giving excessive load to the
CPU of the portable telephones.
For the purpose of enabling YMU788 to demonstrate its full capabilities, Yamaha purpose to use "SMAF:Synthetic music
Mobile Application Format" as a data distribution format that is compatible with multimedia. Since the SMAF takes a
structure that sets importance on the synchronization between sound and images, various contents can be written into it
including incoming call melody with words that can be used for training karaoke, and commercial channel that combines
texts, images and sounds, and others. The hardware sequencer of YMU788 directly interprets and plays blocks relevant to
synthesis (playing music and reproducing ADPCM with FM synthesizer) that are included in data distributed in SMAF.

2-2-8. Memory
Signals in the OM6359 enable two memories. They use two volt supply voltage, VDD3 in the PCF50601 & VDD_1.9V
with a LDO. This system uses Intel's memory, RD38F3050LOZTQ0. It is consisted of 128M bits flash NOR memory and
64M bits SRAM. It has 16 bit data line, HD[0~15] which is connected to OM6359. It has 26 bit address lines,
HA[1~26]. NCSFLASH & NCSRAM signals are chip select.

Writing process, HWR_N is low and it enables writing

process to flash memory and SRAM. During reading process, HRD_N is low and it enables reading process to flash
memory and SRAM. Reading or writing procedure is processed after HWR_N or HRD_N is enabled.

2-2-9. OM6359
OM6359 is consisted of ARM core and DSP core. It has 8x1Kword on-chip program/data RAM, 55 Kwords
on-chip program ROM in the DSP. It has 4K*32bits ROM and 2K*32bits RAM in the ARM core. DSP is consisted
of KBS, JTAG, EMI and UART. 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), ACC(Asynchronous communications controllers), timer, ADC, RTC(Real-Time Clock) and keyboard interface.
KBIO(0:7), address lines of DSP core and HD[0~15]. HA[1~26], address lines of ARM core and HD[0~15], data lines of
ARM core are connected to memory, YMU788.
NCSRAM, NCSFLASH in the ARM core are connected to each memory. HWR_N and HRD_N control the process of
memory. External IRQ(Interrupt ReQuest) signals from each units, such as, PMU need the compatible process.
KBIO[0~7] receive the status from key and RXD0/TXD0 are used for the communication using

data link

cable(DEBUG_DTR/RTS/TXD/RXD/CTS/DSR).
It has JTAG control pins(TDI/TDO/TCK) for ARM core and DSP core. It receives 13MHz clock in CKI pin from
external TCXO. ADC(Analog to Digital Convertor) part receives the status of temperature, battery type and battery voltage.

2-2-10. TOH2600DGI4KRA(26MHz)
This system uses the 26MHz TCXO, TOH2600DGI4KRA, SEM. AFC control signal from OM6359 controls frequency
from 26MHz x-tal. The clock output frequency of UAA3536 is 13MHz. This clock is connected to OM6359, YMU788.

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3.Expl
oded Vi
ew and Parts Li
st
3-1. Exploded View

QFU01

QLC01
QSP01
QMO01

QFR01

QSC14
QVO01
QFL01

QKP01
QCR17
QSC01
QMP01
QMW02

QME01
QVK01
QMI01
QAN02

QRE01

QRF03

1
QCR1

QIF01

QRF01

QBA01

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Expl
oded vi
ew and PartLi
st

3-2. Parts List
L o c a t io n N O .

D e s c r ip t io n

SEC CODE

Q AN02

ㅤ

INTENNA-SGHX495;IAPT0G DP4020HA,SGH-X

GH42-00574A

QBA01

ㅤ

BATTERY-1000MAH,SIL,MAIN;BST471ASA,S

GH43-01788A

QCR11

ㅤ

SCREW -MACHINE;PH,+ ,M1.7,L4,ZPC(BLK),

6001-001654

QCR17

ㅤ

SCREW -MACHINE;CH,+ ,M1.7,L5,ZPC(BLK),

6001-001639

QFL01

ㅤ

MEC-FO LDER LOW ER;SG H-X495,EU,-,-,-,-

GH75-06454A

QFR01

ㅤ

MEC-FRONT COVER;SGH-X495,EU,-,-,-,-,

GH75-06966B

QFU01

ㅤ

MEC-FO LDER UPPER;SGH-X495,T-MO BILE,-

GH75-06471B

Q KP01

ㅤ

MEC-KEYPAD;SG H-X495,T-M OBILE,-,-,-,-

GH75-06617A

QLC01

ㅤ

LCD-SGH-X497 MODULE;UG -12R168-C,SG H-

GH07-00763A

QME01

ㅤ

UNIT-M ETAL DOME;SG H-X497,SSM 5017P850

GH59-02046A

QMI01

ㅤ

MICROPHO NE-ASSY-SGHX497;2,130~500uA,

GH30-00198A

QMO 01

ㅤ

MO TOR DC-SG HZ130;DMJBRK20C,SGH-Z130,

G H31-00154D

QMP01

ㅤ

PBA M AIN-SG HX495;SGH-X495,TMB,USA,PB

GH92-02214A

Q MW 02

ㅤ

PCT-W INDO W M AIN ;SGH-X495,ACRYLIC SHE

GH72-19918B

QRF01

ㅤ

MPR-RF SHEET;SGH-X495,PC SHEET 0.3T,

GH74-14435C

QSC01

ㅤ

MPR-SCREW SHEET;SG H-X495,PC SHEET 0.

GH74-13610B

QSC14

ㅤ

MPR-TAPE FRONT FPC;SG H-E330,3M 1352

GH74-08876A

QSP01

ㅤ

SPEAKER;0.5W ,8ohm ,89dB,800Hz,17X13m m

3001-001779

QVK01

ㅤ

UNIT-VOLUM E KEY;SGH-X497,SSV5017P860

GH59-02053A

QVO01

ㅤ

MEC-VOLUME KEY;SG H-X495,T-M OBILE,-,-

GH75-07274B

QRE01

ㅤ

MEC-REAR CO VER;SGH-X495,USA,-,-,-,-,

GH75-06959B

ㅤ

Q RF03

PM O-EAR COVER;SG H-X495,PC W 91543+ELA

GH72-23535B

ㅤ

QIF01

PM O-IF COVER;SGH-X495,PC G73797+ELAS

GH72-23556B

ㅤ

Q MI03

RMO -RUBBER M IC REAR;SGH-X497,CR RUBB

GH73-04847A

3-2

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Expl
oded vi
ew and PartLi
st

D e s c r ip t io n

SEC CODE

BAG PE;LDPE,T0.05,W 120,L300,TRP,-,BAG PE;LDPE,T0.05,W 80,L140,TRP,-,-1BAG PP;PP,T0.05,W 140,L300,TRP,-,-1-P
LCD-SGHX497 M AIN;UG-12R168-B,SGH-X49
LCD-SGHX497 SUB;UG-09B125-A,SGH-X497
ADAPTOR-SGHR225 TAD;TAD037JBE,SG H-R2
UNIT-AW B SIM CARD;SG H-X105,87444394,
UNIT-EARPHONE;SG H-X475,AEP131SLE,-,E
LABEL(R)-W ATER SOAK T_MOBILE;COMM ,-,
LABEL(R)-T_MOBILE GUIDE;SGH-X475,-,M
LABEL(R)-MAIN(TMB);SGH-X495,TMB,POLY
MANUAL-USER;SG H-X495,TMB,ENG LISH,USA
MANUAL-USER;SG H-X495,TMB,SPANISH,USA
MANUAL-AG C GUIDE;SG H-X495,TM B,EN GLIS
MANUAL-ACTIVATION CARD;SGH-X495,TMB,
LABEL-DR;SGH-X495,-,PE,T1.5,45,11,SI
LABEL-RF;SGH-X495,-,ART,T0.2,42,38,S
LABEL(R)-UNIT IM EI(TM B);SG H-X495,TM B
CUSHION-SGHX495(UNIT CLAM);SGH-X495,
CUSHION-SGHX495(UP CLAM );SG H-X495,HI
CUSHION-SGHX495(LOW CLAM);SGH-X495,H
BOX(P)-SGHX495(IN/BOX_W ALL);SGH-X495
BOX(P)-SGHX495(CLAM_MASTER);SGH-X495
BOX(P)-SGHX495(PATTION );SG H-X495,SC3
PM O-BATT LOCKER;SGH-X495,PC K2261,BL
PCT-W INDO W SUB;SGH-X495,ACRYIC SHEET
PM O-STOPPER;SGH-X495,POLY URETHANE,W
RMO -RUBBER TOP LCD A;SGH-X495,CR RUB
RMO -RUBBER TOP LCD B;SGH-X495,CR RUB
MPR-BOHO VIN YL SUB(S-R);SGH-X495,STA
MPR-BOHO VIN YL REAR;SG H-S342i,3M 418
MPR-TAPE W INDOW SUB;SGH-X495,TESA #4
MPR-BOHO VIN YL IF;SGH-E720,#950,85X1
MPR-TAPE W INDOW MAIN;SGH-X495,3M 949
MPR-BOHO VIN YL MAIN;SGH-X495,3M 4187
MPR-BOHO VIN YL MAIN(S);SG H-X497,SP-1
MPR-BOHO VIN YL SUB;SGH-X495,ST-5555,
MPR-TAPE EL;SPH-B1200,3M 851,5X3.5XT
MPR-TAPE PBA EMI;SG H-X495,GOLD PU T0
MPR-BOHO VIN YL M/TMB(S);SG H-X495,STA
MPR-SPONGE M OTOR;SGH-X495,SRS,D8XT0.
MPR-SPONGE PBA;SGH-X495,SRS,38X64XT5
MPR-TAPE PBA A;SGH-X495,3M851,3X2XT0
MPR-BOHO VIN YL SUB;SGH-X495,ST-5555,
AS-LCD PCB SVC;SG H-X497,LJ96-02137A,
A/S-LCD FPCB SVC;SG H-X497,PO LYMIDE,2
PAA ETC-MAN UAL;SGH-X495,TMB,USA,MANU

6902-000296
6902-000297
6902-000377
GH07-00707A
GH07-00708A
GH44-00184G
GH59-00943A
GH59-01700A
GH68-05914A
GH68-06581A
GH68-06971A
GH68-06976A
GH68-06977A
GH68-06978A
GH68-07399A
GH68-07547A
GH68-07548A
GH68-07687A
GH69-03058A
GH69-03059A
GH69-03060A
GH69-03076B
GH69-03130A
GH69-03132A
GH72-19954B
GH72-19964A
GH72-21517B
GH73-04923A
GH73-04924A
GH74-03429B
GH74-12905A
GH74-13223A
GH74-13606A
GH74-13608A
GH74-14431A
GH74-14431B
GH74-14432A
GH74-14881A
GH74-15484A
GH74-15517B
GH74-15610A
GH74-15911A
GH74-16066A
GH74-17302A
GH81-01219A
GH81-01956A
GH99-10352A
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Expl
oded vi
ew and PartLi
st

3-3. Test Jig (GH80-01909A)

3-3-1. RF Test Cable
(GH39-00283A)

3-3-2. Test Cable
(GH39-00217A)

3-3-3. Serial Cable

3-3-4. Power Supply Cable

3-3-5. DATA CABLE
(GH39-00219A)

3-3-6. TA
(GH44-00184G)

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4. Electrical Parts List
Design LOC

Description

SEC CODE

BAT300

BATTERY

4302-001180

C101

C-CERAMIC,CHIP

2203-000278

C102

C-CERAMIC,CHIP

2203-000812

C103

C-CERAMIC,CHIP

2203-000854

C104

C-CERAMIC,CHIP

2203-000854

C105

C-CERAMIC,CHIP

2203-000278

C106

C-CERAMIC,CHIP

2203-000278

C107

C-CERAMIC,CHIP

2203-000854

C108

C-CERAMIC,CHIP

2203-005057

C109

C-CERAMIC,CHIP

2203-005482

C110

C-CERAMIC,CHIP

2203-005057

C111

C-CERAMIC,CHIP

2203-005482

C112

C-CERAMIC,CHIP

2203-000233

C113

C-CERAMIC,CHIP

2203-000233

C114

C-CERAMIC,CHIP

2203-005482

C115

C-CERAMIC,CHIP

2203-005057

C116

C-CERAMIC,CHIP

2203-005138

C117

C-CERAMIC,CHIP

2203-001383

C118

C-CERAMIC,CHIP

2203-000359

C119

C-CERAMIC,CHIP

2203-000696

C120

C-CERAMIC,CHIP

2203-000836

C121

C-CERAMIC,CHIP

2203-001101

C122

C-CERAMIC,CHIP

2203-005482

C123

C-CERAMIC,CHIP

2203-005057

C124

C-CERAMIC,CHIP

2203-006053

C125

C-CERAMIC,CHIP

2203-000438

C126

C-CERAMIC,CHIP

2203-000233

C127

C-TA,CHIP

2404-001239

C128

C-CERAMIC,CHIP

2203-006141

C129

C-CERAMIC,CHIP

2203-000438

C130

C-CERAMIC,CHIP

2203-006190

C132

C-CERAMIC,CHIP

2203-005503

C133

C-CERAMIC,CHIP

2203-000311

C134

C-CERAMIC,CHIP

2203-000233

C135

C-CERAMIC,CHIP

2203-000254

C136

C-CERAMIC,CHIP

2203-001153

C137

C-CERAMIC,CHIP

2203-000550

4-1

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Electrical Parts List

Design LOC

Description

SEC CODE

C138

C-CERAMIC,CHIP

2203-006137

C139

C-CERAMIC,CHIP

2203-005482

C140

C-CERAMIC,CHIP

2203-000679

C141

C-CERAMIC,CHIP

2203-005482

C142

C-CERAMIC,CHIP

2203-005057

C143

C-CERAMIC,CHIP

2203-000233

C144

C-CERAMIC,CHIP

2203-000254

C145

C-CERAMIC,CHIP

2203-000438

C146

C-CERAMIC,CHIP

2203-000438

C147

C-CERAMIC,CHIP

2203-000438

C152

C-CERAMIC,CHIP

2203-000278

C153

C-CERAMIC,CHIP

2203-000278

C154

C-CERAMIC,CHIP

2203-000995

C155

C-CERAMIC,CHIP

2203-000995

C156

C-CERAMIC,CHIP

2203-000438

C157

C-CERAMIC,CHIP

2203-001239

C158

C-CERAMIC,CHIP

2203-001239

C200

C-CERAMIC,CHIP

2203-005061

C203

C-CERAMIC,CHIP

2203-005061

C204

C-CERAMIC,CHIP

2203-000254

C206

C-CERAMIC,CHIP

2203-005061

C207

C-CERAMIC,CHIP

2203-000254

C208

C-CERAMIC,CHIP

2203-000254

C210

C-CERAMIC,CHIP

2203-006423

C212

C-CERAMIC,CHIP

2203-005061

C213

C-CERAMIC,CHIP

2203-005482

C214

C-CERAMIC,CHIP

2203-000854

C215

C-CERAMIC,CHIP

2203-006423

C216

C-CERAMIC,CHIP

2203-000854

C218

C-CERAMIC,CHIP

2203-005061

C219

C-CERAMIC,CHIP

2203-005482

C220

C-CERAMIC,CHIP

2203-000254

C221

C-CERAMIC,CHIP

2203-006423

C222

C-CERAMIC,CHIP

2203-006423

C223

C-CERAMIC,CHIP

2203-005482

C224

C-CERAMIC,CHIP

2203-000438

C225

C-CERAMIC,CHIP

2203-005482

4-2

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Electrical Parts List

Design LOC

Description

SEC CODE

C300

C-CERAMIC,CHIP

2203-005482

C301

C-CERAMIC,CHIP

2203-006105

C302

C-CERAMIC,CHIP

2203-005482

C304

C-TA,CHIP

2404-001394

C305

C-CERAMIC,CHIP

2203-005482

C306

C-CERAMIC,CHIP

2203-005482

C307

C-TA,CHIP

2404-001374

C308

C-CERAMIC,CHIP

2203-006257

C309

C-CERAMIC,CHIP

2203-005482

C310

C-CERAMIC,CHIP

2203-006208

C311

C-TA,CHIP

2404-001225

C312

C-CERAMIC,CHIP

2203-005395

C313

C-CERAMIC,CHIP

2203-000386

C314

C-CERAMIC,CHIP

2203-005482

C315

C-CERAMIC,CHIP

2203-006257

C316

C-CERAMIC,CHIP

2203-000628

C317

C-CERAMIC,CHIP

2203-006562

C318

C-CERAMIC,CHIP

2203-000628

C319

C-CERAMIC,CHIP

2203-006562

C320

C-CERAMIC,CHIP

2203-006053

C321

C-CERAMIC,CHIP

2203-000885

C322

C-CERAMIC,CHIP

2203-006208

C323

C-CERAMIC,CHIP

2203-006324

C324

C-CERAMIC,CHIP

2203-000812

C325

C-CERAMIC,CHIP

2203-005065

C326

C-TA,CHIP

2404-001225

C327

C-TA,CHIP

2404-001225

C328

C-CERAMIC,CHIP

2203-005482

C329

C-CERAMIC,CHIP

2203-005482

C330

C-CERAMIC,CHIP

2203-005482

C332

C-CERAMIC,CHIP

2203-006257

C333

C-CERAMIC,CHIP

2203-006562

C334

C-CERAMIC,CHIP

2203-006208

C335

C-CERAMIC,CHIP

2203-006208

C336

C-CERAMIC,CHIP

2203-000679

C337

C-CERAMIC,CHIP

2203-006053

C338

C-CERAMIC,CHIP

2203-006208

4-3

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Electrical Parts List

Design LOC

Description

SEC CODE

C339

C-CERAMIC,CHIP

2203-006208

C340

C-CERAMIC,CHIP

2203-006053

C400

C-TA,CHIP

2404-001348

C401

C-CERAMIC,CHIP

2203-000995

C402

C-CERAMIC,CHIP

2203-005482

C403

C-CERAMIC,CHIP

2203-005061

C404

C-CERAMIC,CHIP

2203-006562

C406

C-CERAMIC,CHIP

2203-000278

C407

C-CERAMIC,CHIP

2203-000679

C408

C-CERAMIC,CHIP

2203-005482

C409

C-CERAMIC,CHIP

2203-005061

C410

C-CERAMIC,CHIP

2203-005736

C411

C-CERAMIC,CHIP

2203-000679

C412

C-CERAMIC,CHIP

2203-005482

C413

C-CERAMIC,CHIP

2203-000679

C415

C-CERAMIC,CHIP

2203-000489

C416

C-CERAMIC,CHIP

2203-000679

C418

C-CERAMIC,CHIP

2203-000278

C419

C-CERAMIC,CHIP

2203-006423

C420

C-CERAMIC,CHIP

2203-005736

C421

C-CERAMIC,CHIP

2203-000885

C422

C-CERAMIC,CHIP

2203-000254

C423

C-CERAMIC,CHIP

2203-001153

C424

C-CERAMIC,CHIP

2203-005483

C425

C-CERAMIC,CHIP

2203-005483

C426

C-CERAMIC,CHIP

2203-006562

C429

C-CERAMIC,CHIP

2203-000995

C430

C-CERAMIC,CHIP

2203-000995

C433

C-CERAMIC,CHIP

2203-006562

C435

C-CERAMIC,CHIP

2203-000995

C437

C-CERAMIC,CHIP

2203-006053

C438

C-CERAMIC,CHIP

2203-005482

C439

C-TA,CHIP

2404-001352

C501

C-CERAMIC,CHIP

2203-002443

C502

C-CERAMIC,CHIP

2203-005482

C503

C-CERAMIC,CHIP

2203-005482

C504

C-CERAMIC,CHIP

2203-000278

4-4

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Electrical Parts List

Design LOC

Description

SEC CODE

C505

C-CERAMIC,CHIP

2203-000679

C507

C-CERAMIC,CHIP

2203-000995

C508

C-CERAMIC,CHIP

2203-000278

C509

C-CERAMIC,CHIP

2203-000995

C510

C-CERAMIC,CHIP

2203-000995

C511

C-CERAMIC,CHIP

2203-000278

C513

C-CERAMIC,CHIP

2203-006562

C514

C-CERAMIC,CHIP

2203-006562

C515

C-CERAMIC,CHIP

2203-006562

CN300

CONNECTOR-CARD EDGE

3709-001355

CN502

CONNECTOR-SOCKET

3710-001611

CN503

CONNECTOR-HEADER

3711-005783

CON101

CONNECTOR-COAXIAL

3705-001358

EAR400

JACK-PHONE

3722-002067

F100

FILTER-SAW

2904-001571

F101

FILTER-SAW

2904-001580

F102

FILTER-SAW

2904-001570

HEA1

CONNECTOR-HEADER

3711-005728

L101

INDUCTOR-SMD

2703-002207

L102

INDUCTOR-SMD

2703-002199

L103

INDUCTOR-SMD

2703-002207

L104

INDUCTOR-SMD

2703-002203

L105

INDUCTOR-SMD

2703-002700

L106

INDUCTOR-SMD

2703-001726

L107

INDUCTOR-SMD

2703-002308

L108

INDUCTOR-SMD

2703-002700

L109

INDUCTOR-SMD

2703-002308

L110

INDUCTOR-SMD

2703-002308

L111

INDUCTOR-SMD

2703-002199

L112

INDUCTOR-SMD

2703-002368

L113

INDUCTOR-SMD

2703-002201

L114

INDUCTOR-SMD

2703-002368

L115

INDUCTOR-SMD

2703-002203

L116

INDUCTOR-SMD

2703-002368

L117

INDUCTOR-SMD

2703-001708

L300

CORE-FERRITE BEAD

3301-001105

L400

CORE-FERRITE BEAD

3301-001362

4-5

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Electrical Parts List

Design LOC

Description

SEC CODE

L401

CORE-FERRITE BEAD

3301-001362

L402

CORE-FERRITE BEAD

3301-001105

L403

CORE-FERRITE BEAD

3301-001105

L501

CORE-FERRITE BEAD

3301-001438

LED501

LED

0601-001790

LED502

LED

0601-001790

LED503

LED

0601-001790

LED504

LED

0601-001790

LED505

LED

0601-001790

LED506

LED

0601-001790

LED507

LED

0601-001790

LED508

LED

0601-001790

LED509

LED

0601-001790

LED510

LED

0601-001790

LED511

LED

0601-001790

LED512

LED

0601-001790

OSC100

OSCILLATOR-VCO

2806-001326

OSC101

OSCILLATOR-VCTCXO

2809-001281

Q100

TR-DIGITAL

0504-001151

R101

R-CHIP

2007-000162

R102

R-CHIP

2007-000162

R103

R-CHIP

2007-000162

R104

R-CHIP

2007-007148

R105

R-CHIP

2007-000141

R106

R-CHIP

2007-007528

R107

R-CHIP

2007-001288

R108

R-CHIP

2007-000171

R109

R-CHIP

2007-001329

R110

R-CHIP

2007-000144

R111

R-CHIP

2007-001308

R112

R-CHIP

2007-001308

R113

R-CHIP

2007-000566

R114

R-CHIP

2007-000148

R115

R-CHIP

2007-001288

R116

R-CHIP

2007-007311

R117

R-CHIP

2007-000566

R118

R-CHIP

2007-007699

4-6

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Electrical Parts List

Design LOC

Description

SEC CODE

R119

R-CHIP

2007-007699

R120

R-CHIP

2007-001308

R121

R-CHIP

2007-001308

R122

R-CHIP

2007-000171

R123

R-CHIP

2007-000171

R125

R-CHIP

2007-008672

R126

R-CHIP

2007-001308

R127

R-CHIP

2007-000142

R128

R-CHIP

2007-000148

R129

R-CHIP

2007-000138

R130

R-CHIP

2007-008213

R131

R-CHIP

2007-008213

R132

R-CHIP

2007-008213

R133

R-CHIP

2007-008213

R134

R-CHIP

2007-000140

R135

R-CHIP

2007-000140

R136

R-CHIP

2007-000171

R200

R-CHIP

2007-000174

R201

R-CHIP

2007-008055

R204

R-CHIP

2007-000162

R205

R-CHIP

2007-008055

R206

R-CHIP

2007-008055

R207

R-CHIP

2007-008055

R208

R-CHIP

2007-008052

R209

R-CHIP

2007-008516

R210

R-CHIP

2007-008055

R211

R-CHIP

2007-007107

R212

R-CHIP

2007-007142

R213

R-CHIP

2007-007001

R214

R-CHIP

2007-007142

R215

R-CHIP

2007-001284

R216

R-CHIP

2007-000148

R217

R-CHIP

2007-001284

R218

R-CHIP

2007-000162

R219

R-CHIP

2007-000162

R220

R-CHIP

2007-007107

R221

R-CHIP

2007-007001

4-7

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Electrical Parts List

Design LOC

Description

SEC CODE

R222

R-CHIP

2007-000171

R223

R-CHIP

2007-008588

R224

R-CHIP

2007-008588

R225

R-CHIP

2007-008542

R227

R-CHIP

2007-008542

R228

R-CHIP

2007-008542

R300

R-CHIP

2007-000157

R301

R-CHIP

2007-000148

R302

R-CHIP

2007-007573

R303

R-CHIP

2007-007334

R304

R-CHIP

2007-008117

R305

R-CHIP

2007-000151

R306

R-CHIP

2007-007100

R400

R-CHIP

2007-002796

R401

R-CHIP

2007-000140

R402

R-CHIP

2007-000148

R403

R-CHIP

2007-008054

R404

R-CHIP

2007-000140

R405

R-CHIP

2007-008542

R406

R-CHIP

2007-008055

R407

R-CHIP

2007-002796

R408

R-CHIP

2007-008055

R409

R-CHIP

2007-007334

R410

R-CHIP

2007-001313

R411

R-CHIP

2007-008542

R412

R-CHIP

2007-007334

R413

R-CHIP

2007-007589

R414

R-CHIP

2007-007138

R415

R-CHIP

2007-007981

R416

R-CHIP

2007-007529

R417

R-CHIP

2007-007489

R418

R-CHIP

2007-000138

R422

R-CHIP

2007-000138

R424

R-CHIP

2007-008542

R500

R-CHIP

2007-000162

R501

R-CHIP

2007-008055

R502

R-CHIP

2007-008531

4-8

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Electrical Parts List

Design LOC

Description

SEC CODE

R503

R-CHIP

2007-008531

R504

R-CHIP

2007-008531

R505

R-CHIP

2007-008531

R506

R-CHIP

2007-008531

R507

R-CHIP

2007-000162

R508

R-CHIP

2007-008531

R510

R-CHIP

2007-001301

R511

R-CHIP

2007-001301

R512

R-CHIP

2007-001301

R513

R-CHIP

2007-001301

R514

R-CHIP

2007-001301

R515

R-CHIP

2007-001301

R516

R-CHIP

2007-001301

R517

R-CHIP

2007-001301

R518

R-CHIP

2007-001301

R519

R-CHIP

2007-001301

R520

R-CHIP

2007-001301

R521

R-CHIP

2007-001301

R522

R-CHIP

2007-008055

R529

R-CHIP

2007-008055

R530

R-CHIP

2007-008055

R531

R-CHIP

2007-009084

R532

R-CHIP

2007-009084

R533

R-CHIP

2007-009084

R534

R-CHIP

2007-009084

R535

R-CHIP

2007-009084

R536

R-CHIP

2007-009084

R537

R-CHIP

2007-009084

R538

R-CHIP

2007-009084

R539

R-CHIP

2007-009084

R540

R-CHIP

2007-009084

R541

R-CHIP

2007-009084

R542

R-CHIP

2007-009084

R543

R-CHIP

2007-009084

R544

R-CHIP

2007-009084

R545

R-CHIP

2007-009084

R546

R-CHIP

2007-009084

4-9

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Electrical Parts List

Design LOC

Description

SEC CODE

R547

R-CHIP

2007-000162

SW500

IC

1009-001010

TH200

THERMISTOR

1404-001221

TH501

VARISTOR

1405-001093

TH502

VARISTOR

1405-001093

TH503

VARISTOR

1405-001093

U100

FILTER-DUPLEXER

2909-001246

U101

IC

1205-002327

U102

IC

1201-002075

U201

IC

1108-000019

U202

IC

1205-002607

U300

IC

1203-003109

U301

DIODE-TVS

0406-001200

U302

IC

1205-002350

U303

IC

1203-003808

U401

IC

1202-001036

U402

IC

1001-001306

U404

TR-DIGITAL

0504-001100

U406

IC

1204-002461

U407

IC

1001-001231

U408

IC

0801-002237

U501

FILTER-EMI SMD

2901-001325

U502

IC

0801-002882

U503

FILTER-EMI SMD

2901-001246

U504

FILTER-EMI SMD

2901-001325

U506

FILTER-EMI SMD

2901-001325

U507

FILTER-EMI SMD

2901-001325

U508

IC

0801-002882

U510

IC

1205-002747

U511

IC

1205-002747

U512

IC

1205-002747

V401

DIODE-TVS

0406-001201

V402

DIODE-TVS

0406-001201

V501

VARISTOR

1405-001121

V502

VARISTOR

1405-001121

V504

VARISTOR

1405-001121

V505

VARISTOR

1405-001121

4-10

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Design LOC

Description

SEC CODE

V506

VARISTOR

1405-001121

V507

VARISTOR

1405-001121

V509

VARISTOR

1405-001121

X300

CRYSTAL-UNIT

2801-004373

ZD300

DIODE-ZENER

0403-001427

ZD401

DIODE-TVS

0406-001201

ZD402

DIODE-TVS

0406-001197

ZD406

DIODE-TVS

0406-001201

ZD501

DIODE-ZENER

0403-001387

ZD502

DIODE-TVS

0406-001167

ZD503

DIODE-TVS

0406-001197

ZD504

DIODE-TVS

0406-001197

4-11

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Electrical Parts List

4-12

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5. Block Diagrams
5-1. RF Solution Block Diagram
HITACHI METAL ANT S/W
ESHS-C090T
Imax = 8 mA
Freq (MHz)
Loss(typ.)
880 - 915
1.2 dB
925 - 960
0.8 dB
1710 -1910
1.5 dB
1805 -1880
1.2dB
1930 -1990
1.2dB
Atten 2xfo : 43dB,26dB(GSM,DCS/PCS)
3xfo : 40dB,26dB(GSM,DCS/PCS)

Pins IA,IB,QA and QB
V QI : 1.25V typ . , 1.15V mi
, 1.35Vmax
n
V mod : 0.5V pp
EPCOS GSM RX SAW Filter
B7845 (2.0X1.4)
IL=1.4dB typ 1.5dB max
Ripple=0.5dB typ 0.6dB max
EPCOS DCS RX SAW Filter
B7852 (2.0X1.4)
IL=1.5dB typ 2.1dB max
Ripple=0.5dB typ 1.0dB max

(2.7V)

DCS/PCS_TX_MODE_SW

QUAD

100 kHz+fmod
+ Q OUT
- Q OUT

EPCOS PCS RX SAW Filter
B7851 (2.0X1.4)
IL=1.4dB typ 2.1dB max
Ripple=0.5dB typ 1.0dB max

Vc_GSM Vc_DCS Vc_PCS
GSM_TX_MODE_SW

+ I OUT
- I OUT

VREG

Vcc_RF_LO

Inverter
circuits

DIV
Vcc_SYN

Vcc_RF_VCO

~

PCS_RX_MODE_SW
GSM/DCS/PCS

VCC_RX_TX
Discrete
3 rd Order
Loop Filter
fc = ?
kHz

VREG

FracN
DIV

Vcc_REF(2.4V typ.)
f compRF =26MHz
REFIN

PFD

CP
FE_SW1

26MHz

FE_SW2

I+
DIV
QUAD

OFFSET Mixer input power
-16dBm max, -22dBm min

1:1/
2
I-

fmod

Vcc_Tx_BURST
(2.7V)

f TXIF
60MHz

~
~

CP

VBAT
Micro Devices Quadband PAM
RF3146 (7 X 7)
GSM: Pout = 34.2 dBm , E = 55%
DCS: Pout= 32.0 dBm , E = 55%
PCS: Pout= 32.0 dBm , E = 52%

VOT1810F27KRA (6.0X5.0X1.7)
GSM = 880 ~ 915MHz
(Vt=0.5V ~ 3.0V )
Tuning Sensitivity = 55±11MHz/V
DCS = 1710 ~ 1785MHz
(Vt=0.5V ~ 3.0V )
Tuning Sensitivity = 115±23 MHz/V
Pout= 6.5±3 dBm typ.,Ic <= 30mA
Harmonics <= -10dBc

PWR
EN

Philips Transceiver
UAA3536

TX VCO

DCS/PCS

3W
BUS
CTL
REG

DATA
CLK
EN

Q-

DCS/PCS S/W

VAPC

Q+

PFD

GSM S/W

GSM

VC-TCXO

VBat (3.6V typ 3.0V min)

VCC_SYN (2.7V , 100mA )
VCC_RX_TX (2.7V ,100mA )
VCC_RF_VCO (2.7V , 100mA )
VCC_TX_BURST (2.7V , 100mA )
VCC_CP (4.0V , 25mA )

PON_TX
PON_SYNT

RF1_VDD
RF2_VDD
RF1_VDDS
RF2_VDDS
HV
S

PMU

V_MODE
AVDD(1.35V min 2.65V max , 100mA )

VDD1 (1.35V min 2.95V max , 150mA )
VDD2 (1.35V min 3.45V max , 150mA )
VDD3 (1.35V min 3.45V max , 100mA )
VDD4 (1.35V min 3.45V max , 150mA )

5-1

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RXON
TXON
SYNON
FESWON

Block Diagrams

5-2. Base Band Solution Block Diagram
MIC
BB INTERFACE
Serial Data
Interface

RECEIVER
SPEAKER

VIBRATOR

OM6359

Battery
Type
Battery
Voltage

I/O
Interface

Battery
Temperature

A/D
Interface

VCC_CP
VCC_SYN

MELODY IC
(40 Poly)

VCC_RX_TX
RF INTERFACE
VCC_RF_VCO

SYSTEM CLOCK
(13MHz)

AFC

VCC_TX_BURST
VDD1

RAMP
VDD2
VDD3
LCD
VDD_VIB
KEY_BOARD

Li-Ion Battery
(Standard)

MIC_BIAS

PMU

VDD_KEY
VDD_AMP

Charging Circuit

RTC_CLOCK
(32.768KHz)

AVDD
SIM CARD
AVDD_TEMP
BL_VDD

5-2

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6. PCB Diagrams
6-1. PCB Top Diagram

6-1

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PCB Diagrams

6-2. PCB Bottom Diagram

6-2

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7. Flow Chart of Troubleshooting
7-1. Power On

' Power On ' does not work
Yes

Check the Battery Voltage
is more than 3.4V

No
Change the Battery

Yes

No
Check the PMU related to V_ISUP

C315(V_ISUP) = 2.7V?

Yes

Check the Clock at
R306=32KHZ

No
Resolder X300

Yes

No
Check the VDD1 circuit

C340 (VDD1) = "H"?

Yes

C339(VDD2) & C338(VDD3)
= 2.85V?

No
Check the VDD2,VDD3 circuit

Yes

Check for the clock at C135
= 13MHz

No

Check the clock generation circuit
(related to U101)

Yes

Check the initial operation

Yes
END

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Flow Chart of Troubleshooting

Power On

VDD1_1V8

R301
VBAT

C301

IT_PMU
JIG_REC
RECO1
JACK_IN
32K
RSTON
ONKEY_N
CHARGER_OK

CN300

C302

11
66
2 2
55
3 34
4
G G G G
10 9 8 7

C305

TP300

TP301

REF_ON

C309

U301
1
K3 H3D9 A9 J2K1K2

E3
F2

SCL
SDA

12C
INTERFACE

H8
K6

REFC
REFGND

ON-CHIP
REFERENCE
&
MIC BIAS

C310

C313

BLVDD_3V25

refgnd
VBAT
J6

C314

K4
J5

BAT300

bias currents

internal
clocks

BLVDD_3V25
VBAT

VCC_SYN_2V7

C320

PON_TX

C316

VBAT

BATTERY
VOLTAGE
MONITOR
D3
CHRVBAT
E2
CHRREG
E1
CHRIV

CHARGE
CONTROL

C318

SUPPLY &
CONTROL
VCC_CP_4V

VBAT

LINREG
HVSVBAT
HVSGND
HVSSCP
HVSSCN
HVSOC
HVSVDD

HIGH VOLTAGE
SUPPLY

E8
RF1SWS
F9
RF1VDDS
E10
RF2SWS
J10
RF2VDDS

PON_SYNT

VBAT

BACKLIGHT

G9
RFVBAT
G10
RF1VDD
F10
RF1SNS
H10
RF2VDD
H9 RF2SNS

VCC_RF_VCO_2V7

R306

internal
supply

BLVBAT
BLVDD
BBMSW
BBMGND

(CHARGE
SWITCH

PUMP+
LINREG)

C8
B9
C9
A10
B10
D8

C321
L300

H7

E4 F5 F4 G4 J3 G5 K5F6 G6G7G8F7 E6 E7 D7 C7D6 E5 D5 D4C4

F1 F3 E9

G3G2G1 H4 H2H1 J1 F8 B4A4 J8 J9 J7 K7

VIB

HFA

C325

VIBVBAT
VIBVDD

C330

C329

AVDDS
HFAVBAT
HFAVBAT
HFAVDD
HFAVDD

C328

DVDD2
SEL3RB
DVDD3VBAT
DVDD3
DVDD3
DVDD3
DVDD4ON
DVDD4VBAT
DVDD4
DVDD4
AVDDVBAT
AVDDVBAT
AVDD
AVDD
AVDD

C327

DVDD2VBAT
DVDD2
DVDD2

C326

VSS1
VSS2
VSS3
VSS4
VSS5
VSS6
VSS7
VSS8
VSS9
VSS10
VSS11
VSS12
VSS13
VSS14
VSS15
VSS16
VSS17
VSS18
VSS19
VSS20
VSS21

C322

VPROG

VCC_RX_TX_2V7

B7
A7
C5
A8

X300
CC7V-T1A

K8
OSC32I
K9
OSC32O

32KHz XTAL
OSCILLATOR

REAL-TIME
CLOCK

INTERNAL
SUPPLY
MODULE

VBACK

SIMIO
SIMCLK

CLOCK
GENERATOR

htmp

VBAT

H6
J4 ISUPA
ISUPD

VCC_TX_BURST_2V7

C341

PLL

C315

BACKLIGHT

5

reference
voltage

V_ISUP_2V5
TEMP HIGH
SENSOR

NC

4
SIM VCC

D1
CPRES
B8
SIMIO
SIMCLK C6

SIM

calibration

MICBIAS

6
CLOCK

GND

C2
VCC
C3
CLK
C1
RST
D2
IO

INTERFACE

DVDD1
DVDD1VBAT
DVDD1
SEL12RB

R305

ON/OFF
CONTROL
control
status
data

IO

21

C312

ovdd
htmp

SCL
SDA
C311

3

SIM
CHARGE
PUMP

INTERRUPT
GENERATOR

MIC_BIAS_2V1

2

SIMVBAT
SIMGND
SIMSCP
SIMSCN

TM

B2A2 B1A1

C10

INT

SLPMOD

U302

D10

AUXON
ONKEY
RSTO
CLK32
REC2
REC1
REC3

H5

NC 2
NC 1

VDD_KEY_2V95

K10A5 B5A6 B6B3 A3
VBAT

VDD_VIB_3V05

AVDD_2V65

AVDD_TEMP_2V65

VDD2_2V85
V_ISUP_2V5
VDD3_2V85
VDD1_1V8

VIB

C332
C335
C337

C338

C339

C333

C336

C340

POWER MANAGERMENT UNIT(PMU IC)

7-2

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C334

C323

C324

Flow Chart of Troubleshooting

C339

7-3

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Flow Chart of Troubleshooting

7-2. Initial
Initial Failure
Yes

No

R204 (RSTON) ="H"?

Check the circuit related to reset

Yes

No

Is U201 Pin
(memory CE) OK?

Check the U201

Yes
Check the circuit around
LCD & U201 (Short or not solder)
Yes
END

7-4

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Flow Chart of Troubleshooting

Initial

VDD1_1V8

VDD2_2V85 VDD2_2V85 VDD2_2V85 VDD3_2V85

VDD1_1V8

C203

C204
C206

C207

C200

C208

VDD1_1V8

VDD2_2V85 VDD3_2V85

R200

C216

P12
AVDD

P11
CKI
P13
CKI32I
P14
CKI32O

P4
VDDE3_A
M6
VDDE3_B
G2
VDDE3_F
VDDE3_G L3

R204

P8
VDDE2_C
C1
VDDE2_E

D_REF_13M
32K
RSTON

VDDC_A
VDDC_B
VDDC_C
VDDC_D

F5
N13
M8
K6

VDDE1_A P9
VDDE1_B N12
VDDE1_C C8
VDDE1_D H11

C215

C213

C10
RESETN
M10
RSTO_N
H10
RST_N
K14
AUXON
HD(0:15)

HA(1:26)

VDD3_2V85

R219

R218

HD(0)
HD(1)
HD(2)
HD(3)
HD(4)
HD(5)
HD(6)
HD(7)
HD(8)
HD(9)
HD(10)
HD(11)
HD(12)
HD(13)
HD(14)
HD(15)
HA(1)
HA(2)
HA(3)
HA(4)
HA(5)
HA(6)
HA(7)
HA(8)
HA(9)
HA(10)
HA(11)
HA(12)
HA(13)
HA(14)
HA(15)
HA(16)
HA(17)
HA(18)
HA(19)
HA(20)
HA(21)
HA(22)
HA(23)
HA(24)
HA(25)
HA(26)

R227

HWR_N
HRD_N

H4
H3
H2
J3
E5
H1
B1
E4
F3
F2
F1
E1
D1
E3
E2
B2
M4
P3
L4
N3
K5
M3
P2
N2
M1
N1
L2
L1
M2
J2
J5
K3
J4
K4
K2
G4
P5
N6
L6
J7
J6
H6
L5
H5

C229

HD0
HD1
HD2
HD3
HD4
HD5
HD6
HD7
HD8
HD9
HD10
HD11
HD12
HD13
HD14
HD15
HA1
HA2
HA3
HA4
HA5
HA6
HA7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
HA16
HA17
HA18
HA19
HA20
HA21
HA22
HA23
HA24
HA25
HA26
HWR_N
HRD_N

U202

QP
QN
IP
IN
AUXADC1
AUXADC2
AUXADC3
AUXADC4

MCLK
ADI
AFS
ACLK
ADO
BOEN
BDIO
BIEN
BIOCLK

GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10

RF_EN_SYNT
C219

H13
H14
J13
J14
F14
G14
E14
F13

AVDD_TEMP_2V65
AFC
RAMP
QRX_TX_P
QRX_TX_N
IRX_TX_P
IRX_TX_N
MES_BATT

R225

R211

R214

D10
A8
B9
B8
A9
G11
E11
F10
F11

M13
M14
M11
E6
F4

VDD2_2V85

TDI
TMS
TCK
TDO
TRST_N
J_SEL

R226

7-5

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R212

VF

R215

E13
VSS_BB
D11
VSS_D
C13
VSS_REF
A12
VSS_VB
C11
VSS_VBOUT

AVSS
K7 VSS_A
J1 VSS_B
M7 VSS_C
N10
VSS_E
N14
VSS_F
N11
VSS_G
G13 VSS_H
E8
VSS_I
C3
VSS_K
G1 VSS_M
K1
VSS_N
P1
VSS_O
N5
VSS_P

P10

TDI
TMS
TCK
TDO
TRST_N
J_SEL

SIMIO
SIMCLK
SIMERR
PWM1
PWM0

RXD1
A4 TXD

KBIO7
KBIO6
KBIO5
KBIO4
KBIO3
KBIO2
KBIO1
KBIO0

RF_BBI_DATA

C2
SCK
B3
SDA

D2
A2
A3
D3
A1
B4

KBIO(0:7)

L14
L12
L13
L11
J11
K13
J10
K11

RF_BBI_CLK

A13
MICP
B13
MICN
B14
AUXMICP
A14
AUXMICN

D4

KBIO(7)
KBIO(6)
KBIO(5)
KBIO(4)
KBIO(3)
KBIO(2)
KBIO(1)
KBIO(0)

ANT_SW2
ANT_SW3
PON_SYNT
PON_TX
PON_RX

B10
EARP
A11
EARN
A10
AUXSP
B11
BUZ

RXD1
TXD1

TP206
TP207

TXVCO_SW1
TXVCO_SW2
PAM_TX_EN
ANT_SW1

E12
AUXDAC1
D13
AUXDAC2
D12
AUXDAC3

B5
CTS0_N
A5
RXT0_N
C5
TXD0
C4
RXD0

M12
K9
L8
M9
P7
L7
L9
N7
P6
N8
K8

LCD_RESET
V_MODE
REF_ON

D5
A6
D6
B6
A7
C7
B7
C6
E7
K10
D7
H12
G12
E10
E9
D8
D9

J12
RFE_N0
K12
RFE_N2
C14
VREF

CTS0
RTS0
TXD0
RXD0

AMP_EN
A
B
CHG_ON
TTY_MODE_SEL
LCD_MAIN_EN
M_RST
M_INT
END_OF_CHARGE
CTS0
FLIP

R228
N9
GPON2
L10
GPON1
G10
AUXST

RFSIG0
RFSIG1
RFSIG2
RFSIG3
RFSIG4
RFSIG5
RFSIG6
RFSIG7
RFSIG8
RFSIG9
RFSIG10
RXON
TXON
CCLK
CDO
CDI
CEN

G3
CS_N3
M5
CS_N2
G5
CS_N1
N4
CS_N0

LCD_CS
MELODY_CS
NCSRAM
NCSFLASH

C214

F12
C9
D14
B12
C12

VDD1_1V8

VDD_BB
VDD_D
VDD_REF
VDD_VB
VDD_VBOUT

VDD1_1V8

VDD1_1V8 AVDD_2V65

EARP_P
EARP_N

R217
AUXSP

LINE_OUT
MIC_P
MIC_N

VDD1_1V8

AUX_MIC_P
AUX_MIC_N

R220

R221

D_REF_13M
TP208
TP209
TP210
TP211

DD
FSC
DCL
DU
BOEN
BDIO
BIEN
BIOCLK
VDD2_2V85

R224

R223

SCL
SDA
SIMIO
SIMCLK
IT_PMU

TH200

Flow Chart of Troubleshooting

7-6

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Flow Chart of Troubleshooting

7-3. Charging Part

Abnormal charging part
Yes
No

Check the U300 pin 2
> 4.9V

Check the the circuit related to
+DCVOLT

Yes

No
U300 pin 4 = "H"?

Resolder or replace U300

Yes

No
U300 pin 5 = "L"?

Check the circuit related to
CHG_ON signal

Yes

No

Check the C300
≒ 4.2V

Resolder or replace U300

Yes

END

7-7

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Flow Chart of Troubleshooting

Charging

VBAT

VDD2_2V85

U300
R300

+DCVOLT_5V
1 VL

_CHG 8

2 IN

BATT 7

3 GND

_ACOK 6

4 ISET

_EN 5

C307

C308

R304

C306

UDZS8.2B

G GG G
910 11 12

END_OF_CHARGE

R302
MES_BATT
R303

CHARGER_OK
CHG_ON
C304

C303

CHARGER IC

7-8

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C300

Flow Chart of Troubleshooting

7-9

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Flow Chart of Troubleshooting

7-4. Sim Part
Phone can't access SIM Card

Yes

No
CN300 pin 1,5 = "H"?

Check the sim charge pump

Yes

No
After Power ON,
Check SIMCLK Signal on
CN300 pin3 in a few second

Check the 32k OSC

Yes

No
After SIM card insert,
CN300 pin 2 = "H(SIM_RST)"?

Replace PBA

Yes

Check the SIM Card

Yes

END

7-10

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Flow Chart of Troubleshooting

7-5. Microphone Part

Microphone does not work

Yes
No
Check the connection
from MIC

Resolder MIC

Yes
No
Check the circuit
from U202 to MIC

Resolder the R400, R401, R404, R407,
L400, L401, C408 and C412

Yes

No
Check the MIC

Replace the MIC

Yes
END

7-11

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Flow Chart of Troubleshooting

Microphone
MIC_BIAS_2V1

MICROPHONE
R400
Close to MCP

Close to microphone

C400

V401

C406
R401

C405
MIC+

C411

M400

C407
C408

L400

MIC_P

C414

L401

R402

C413

MIC_N
C412
C416

R404

V402

C417

C418
VDD2_2V85

VDD2_2V85

R407

VDD2_2V85
R409

5
R412
JACK_IN

3

7

8
1

6
2

U401-2

EAR_SWITCH

U401-1

4
R415

R416

7-12

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Flow Chart of Troubleshooting

7-6. Speaker Part(Melody)
Speaker does not work
Yes
No
U408 pin 5 = 1.9V?

Resolder or replace U408

Yes

No

Check the Clock signal
at
E2(CLKI) of
U406(13MHz)

Check the clock generation circuit
(related to OSC101 and U406)

Yes

No

R405 & R411 Around
U406 ≒ 1.8V?
(When U406 operate)

Resolder U406

Yes

No
HEA1 pin 24,26
≒ 1.8V?

Check the circuit related to
"SPK_P/SPK_N" signal

Yes

No
Is Speaker working?

Change the Speaker

Yes

END

7-13

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Flow Chart of Troubleshooting

Speaker

VBAT

VDD2_2V85

VDD_1.9V

U406
C1
E1
D7
J3
C8

R424

C439

C402

C401
C403

C404

HD(0)
HD(1)
HD(2)
HD(3)
HD(4)
HD(5)
HD(6)
HD(7)

H4
E7
G4
D3
J5
C2
B2
F1
E3
D4
E6
G5
G7
H5
J6

MELODY_CS
M_INT
HRD_N
M_RST
HWR_N

VDD_1.9V
VDD_1.9V

U408

C420
R406

1
2

MEL_13M
R408

3

NC

C419

VCC

GND

HA(1)
HA(2)

5

IN

VIB
OUT

4
R410

B5
C5
G8
E2

C422
R414

R413

B4
A3
A4
A2
C4
C6
H6

LINE_OUT

C421

C423

R417
C426

AMP_IN

G3
J2
H2
G2
H1
J1
F3
G1
F2

C424

AVDD
DVDD
DVDD
DVDD
SPVDD
D0
D1
D2
D3
D4
D4
D5
D6
D7

AVSS
DVSS
DVSS
DVSS
SPVSS
HPC
HPOUTL
HPOUTR
HPVSS
IOVDD1
IOVDD2

/CS,_SS
LED0
/IRQ
LED1
LED2
/RD,SI
/RST
LRCK
/WR,SCK
MTR
PLLC
TXOUT
VREF
RXIN
A0
YMU788 RXIN
A1
SDIN
INDEX
SPOUT1
MCLK
SPOUT1
IFSEL
SPOUT2
MTR
SMODE
SO
TESTI0
BBL
TESTI1
TESTI2
BBR
TESTI3
BCLK
CLKI
NC
EQ1
NC
EQ2
EQ3
EXC
EXTIN
EXTOUT
GPIO

B3
B6
A6
A5
E8
H3

H8
H7
J7
F7
J8
D2
C3
A1
F8

This Document can not be used without Samsung's authorization

R403
C415

R405

B7
A8
A7

D6
F6
G6
C7
1
2

MELODY IC

SAMSUNG Proprietary-Contents may change without notice

C409
C410

C425

7-14

VDD3_2V85

B1
D1
D8
J4
B8

AMP_P

AMP_N
R411

Flow Chart of Troubleshooting

7-15

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Flow Chart of Troubleshooting

7-7. Key Data Input

Check Initial Operation
Yes
No
When one of the keys is
pushed,
is it displayed on LCD?

Check the Dome sheet & Key rubber

Yes

No
When one of the keys is
pushed,
KBIO signal is OK?

Replace the PBA

Yes

END

7-16

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Flow Chart of Troubleshooting

7-8. Receiver Part
Receiver does not work
Yes
No
Resolder or replace U402

U402 pin 3, 15 = 1.5V?

Yes
No
Resolder or replace

U402 pin 8, 12 = 1.5?

U402

Yes
No
Resolder EAR400

EAR400 pin 5, 2 = short?

Yes
No
Resolder HEA1

HEA1 pin 24, 26 = 1.5V?

Yes
No
SPK +,- PAD

Change LCD module

= 1.5V?

Yes
No
Check the soldering of the
speaker wire

Modify the speaker wire soldering

Yes
No
Replace the Receiver

Is Receiver working?

Yes
END

7-17

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Flow Chart of Troubleshooting

7-18

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Flow Chart of Troubleshooting

7-9. LCD Part (for Color Main )

LCD does not work
Yes
No
Is LCD Contrast set on
high level in the Menu?

Set LCD Contrast on high level

Yes

No
Check the U502

HEA1 pin 2 = 2.8V?

Yes

No
HEA1 pin 19(HWR_N)
21(HA(1)) is OK?

Check the U202

Yes

Replace the LCD Module

Yes
END

7-19

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Flow Chart of Troubleshooting

TP212

7-20

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Flow Chart of Troubleshooting

7-10. Key Back Light

Key Backlight does not work
Yes
No
Check the PMU related to "VDD_KEY"

C333 = "H"?

Yes

END

7-21

SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting

7-11. GSM Receiver

RX ON
RF input : CH center freq
Amp : -50dBm

Yes
No

U100 Pin7
>= -65dBm

Resolder CN101, C102

Yes
No

U100 pin5
>= -65dBm

Check U100

No

pin2=L,pin4=L,pin8=L

Check ANT Switch
control circuit

Yes
Yes

Resolder U100
No

F101 pin1
>= -70dBm

Resolder F101, C107, L115

Yes
No
U101
pin32 >= -70dBm
pin33 >= -70dBm

Resolder L112, L113, L114

Yes
No
U101 pin6, 7, 8, 9
>= 1V

Check U101
pin10,22,28 >=2.7V
pin20 >=4.0V

Yes

No

Yes

R130,R131,R132
,R133 >= 1V
Yes

Check U202

END

7-22

SAMSUNG Proprietary-Contents may change without notice
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Check & Resolder
RF PSU Part

Check &Resolder
U101, RF26MHz part,
R104, R105

Flow Chart of Troubleshooting

7-23

SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting

7-12. GSM Transmitterv

TX ON (5Level)

Yes

U100 Pin7
>= 20dBm

Resolder CN101, C102

No
Yes

U100 Pin11
>= 20dBm

Check U100

Yes

pin2=L,pin4=H,pin8=L

No

No

Change
or Resolder U100

Check ANT Switch
control circuit

Yes

U102 Pin6
>= 20dBm

Resolder C119, L117

No
Yes

U102 Pin48
>= 3dBm

Check U102
+VBATT(pin42,43)
OK?

Yes

Resolder or change U102
or check PAM control
signal

No

No

Check +VBATT
OSC100 pin1
>= 6Bm

Yes
Resolder R107, R111, R112

No

U101 Pin6, 7, 8, 9
>= 500mV

Yes

Check U101
pin4 >= 4.0V
pin22, 28 >= 2.7V

Yes

Check & Resolder
RF PSU part

No

No

Resolder U101
or check Txcpo(R129)

Check U202

END

7-24

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

Flow Chart of Troubleshooting

7-25

SAMSUNG Proprietary-Contents may change without notice
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Flow Chart of Troubleshooting

7-13. DCS Receiver

RX ON
RF input : CH center freq
Amp : -50dBm

Yes
No

U100 Pin7
>= -65dBm

Resolder CN101, C102

Yes
No

U100 pin1
>= -65dBm

Check U100

No

pin2=L,pin4=L,pin8=L

Check ANT Switch
control circuit

Yes

Yes

Resolder U100
No

F102 pin1
>= -70dBm

Resolder F102, C104, L111

Yes
U101Pin38>=-70dBm
Pin39>=-70dBm

No
Resolder L105, L106, L108

Yes

U101 pin6, 7, 8, 9
>= 1V

No

Check U101

No

pin22,28 >= 2.7V
pin4 >= 4.0V

Yes

Yes

R130,R131,R132
,R133 >= 1V
Yes
Check U202

END

7-26

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

Check & Resolder
RF PSU Part

Check & Resolder
U101, RF26MHz part
R104, R105

Flow Chart of Troubleshooting

7-27

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

Flow Chart of Troubleshooting

7-14. DCS Transmitter

TX ON (0Level)

Yes

U100 Pin7
>= 20dBm

Resolder CN101, C102

No
Yes

U100 Pin9
>= 20dBm

Check U100

Yes

pin2=L,pin4=L,pin8=H

No

No

Yes

U102 Pin31
>= 20dBm

Change
or Resolder U100

Check ANT Switch
control circuit

Resolder C117, L116

No
Yes

U102 Pin37
>= 3dBm

Check U102
+VBATT(pin42,43)
OK?

Yes

Resolder or change U102
or check PAM control
signal

No

No

Check +VBATT
Yes

OSC100 pin2
>= 6Bm

Resolder R115, R120, R121

No
U101 Pin6, 7, 8, 9
>= 500mV

Yes

Check U101
pin4 >= 4.0V
pin22, 28 >= 2.7V

No

Yes

No

Check U202

END

7-28

SAMSUNG Proprietary-Contents may change without notice
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Check & Resolder
RF PSU part

Resolder U101
or check Txcpo(R129)

Flow Chart of Troubleshooting

7-29

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

Flow Chart of Troubleshooting

7-15. PCS Receiver

RX ON
RF input : CH center freq
Amp : -50dBm

Yes
U100 Pin7
>= -65dBm

No

Resolder CN101, C102

Yes
U100 Pin3
>= -65dBm

No

Check U100

pin2=H,pin4=L,pin8=L

Yes

Yes
F100 Pin1
>= -70dBm

No

No

Change
or Resolder U100

Check ANT Switch
control circuit

Resolder F100, C103, L104

Yes
U101 Pin35,36
>= -70dBm

No
Resolder L101, L102, L103

Yes
U101 Pin 6,7,8,9
>= 1V

No

Check U101
pin4 >= 4.0V
pin22, 28 >= 2.7V

Yes

Check & Resolder
RF PSU part

Check & Resolder
U101, RF 26MHz part,
R104, R105

R130,R131,R132,
R133 >= 1V

Yes
Check U202

END

7-30

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

Flow Chart of Troubleshooting

7-31

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

Flow Chart of Troubleshooting

7-16. PCS Transmitter

TX ON (0Level)

Yes

U100 Pin7
>= 20dBm

Resolder CN101, C102

No

Yes

U100 Pin9
>= 20dBm

Check U100

Yes

pin2=L,pin4=L,pin8=H

No

No
Yes

U102 Pin31
>= 20dBm

Change
or Resolder U100

Check ANT Switch
control circuit

Resolder C117, L116

No
Yes
U102 Pin37
>= 3dBm

Check U102
+VBATT(pin42,43)
OK?

Yes

No

No

Resolder or change U102
or check PAM control
signal

Check +VBATT

Yes

OSC100 pin2
>= 6Bm

Resolder R115, R120, R121

No
U101 Pin6, 7, 8, 9
>= 500mV

Yes

Check U101
pin4 >= 4.0V
pin22, 28 >= 2.7V

No

Yes

No

Check U202

END

7-32

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

Check & Resolder
RF PSU part

Resolder U101
or check Txcpo(R129)

Flow Chart of Troubleshooting

7-33

SAMSUNG Proprietary-Contents may change without notice
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C131

VCC1GSM

GND1GSM

GND
GND
GND
GND

7-34

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

12

11

NC

NC

BANDSEL

TXENABLE
VCC3DCS/PCS

NC
VRAMP
VCC3GSM

NC

GSM850/900IN

NC

C143

C144

VCCOUT

C147

13 14 15 16 17 18 19 20 21 22 23 24

NC

C146

GND

NC

NC

NC

NC

NC

GND

DCS/PCSOUT

NC

C145

DCS/PCSIN

NC

VBATT

U102

VBATT

4 GND
5
GND
6
GSM850/900OUT
7
GND
8 NC

VCC1

9 NC

1

NC

35
34

25

26

27

28

29

30

31

32

33

R134

R135

C152

C153

R126

C137

R124

R122

C136

R125

DCSIB

C138

R129

R116
22K,1%

42
GND2
43
GND3
44 GND4
45 NC1
46 NC2

1

40 FESWON

2

3

45

28

27

26

U101

6

7

25

8

24

9

23

22

PCS_RX

41

11

12

13

14

15

16

17

18

19

20

C142

CLKOUT

CAFCSUP

CLKFDBX

REFGND

REFIN

REFVCC

DATA

CLK

EN

RFCPVCC

21

C141

10

IFVCC

10

2

NC

GND

0

TXRFI

VCC2DCS/PCS

R108

29

EXTRES

VCC2GSM

GND

ANT_SW1

39

38 DCSIA

37 RFGND2

36 PCSIB

PCSIA

RFGND1

GSMIB

GSMIA

RFVCC

30

TXCPVCC

NC

R119

VCC1

BAND
GND
VCC2 GND
GND
GND

12 10 8 6 3

BAND 4

2

C125
1NF
50V

35

34

33

32

31

C116
1.8NF
50V

TXCPO

FESW2

GSMINTERGND

R118

11

C124
1UF
10V

VCC_TX_BURST_2V7

L113

FESW1

2

R121

7

1 OUT1
5 OUT2
9 CONTROL

OSC100

L112

L114

L106

TXON

RFLOVCC

3

R120

3

L108

L102

GNDTUNE

1

36

R115

R112

OUT

4

OUT 4
GG
2
5

1 IN

OUT
5

3

L105

L103

SYNON

NC

R111

R107

GG
2

OUT

F102

F101
B7845

IN

3

SYNVCC

53 GND
54 GND

G

48 47 46 45 44 43 42 41 40 39 38 37

C117

1
_ECOS

OUT
OUT 4
GG
2
5

L101

RFCPO

TXVCO_SW2

52 51 50 49

L117

L115

IN

B7852

1

F100

RXON

TXVCO_SW1

C133

R110

C126

C119

L116

C107

L111

L104

B7851

H

RFVCOVCC

C132

R109

C127

6 10 12 13 14

C104

C103

L

L
L

RFTUNE

RAMP

VBAT

U100

4 VC1
DCS_RX 1
8 VC2
GSM_RX 5
2 VC3
DCS|PCS_T 9
3 PCS_RX
11
GSM_TX
G2G3G4G5G6

7
ANT

C102

L

PCS Rx

L

C140

C129

C120

R106

C101

Q100

R101

R128

C139

C121

R105

R104

PEMD10

1

6

C118

2

C128

C135

3

5

E1

PAM_TX_EN

ANT_SW3

C106

G
3

100K

A

C105

C

L107
L109
L110

4

KMS-512

L

DCS Rx

L
C2

L119

L

GSM Rx

L

H

L

DCS/PCS Tx
B1

E2

L118

R136

CON101

4

B2

R102

ANT

ANT1

L

VC3

C1

FE_SW1
FE_SW2
PCS_RX

ANT2

L

VC2

H

VC1
GSM 850/900 Tx

R127

R123

OSC101

R130

R133

C158

R132

R131

C157

C134

C113

C112

4
VCC

GND VCON
1
2

OUT

3

C156

C109

C108

R114

C155

C154

C122

C115

C110

R117

R113

C123

C114

C111

C130

VCC_CP_4V

PON_TX

IRX_TX_P

IRX_TX_N

QRX_TX_P

QRX_TX_N

VCC_SYN_2V7

D_REF_13M

MEL_13M

AFC

RF_BBI_DATA

RF_BBI_CLK

RF_EN_SYNT

VCC_CP_4V

VCC_SYN_2V7

PON_RX

PON_SYNT

FE_SW1

FE_SW2

VCC_RF_VCO_2V7

VCC_RX_TX_2V7

ANT_SW2

VCC_RX_TX_2V7

Flow Chart of Troubleshooting

Transmitter & Receiver

QB

GND1

QA

IB

IA

NC

VCCOUT

NC

NC

NC

www.s-manuals.com



---

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Title                           : Samsung SGH-X495 - Service Manual. www.s-manuals.com.
Subject                         : Samsung SGH-X495 - Service Manual. www.s-manuals.com.
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