T-Mobile GPRS

Select a device: Area code: Telephone number: Finish majd az elkszlt trcszn <jobb egrgomb>Properties Use area code and Dialing Properties Server Types Log on to network Enable softvare compression NetBEUI IPX/SPX Compatibile TCP/IP TCP/IP Settings Server assigned IP address Server assigned name server address Use IP header compression Use default gateway on remote network OKOK
(a fentebb belltott) Standard 33600 bps Modem 30 *99**1*1# +36309301307
A trcszshoz szksges felhasznli nvrt s jelszrt krjk, hvja az gyflszolglatot.
A lers a X700BSFB3 SW verzij mobiltelefonhoz kszlt.

2006.03.02.

1. Specification
1-1. GSM General Specification
GSM900 Phas e 1 Fr eq. Band[MHz] Uplink/ Downli nk ARFCN r ange Tx/ Rx s paci ng Mod. Bit r ate / Bit Pe r iod T ime Slot Period / F rame Peri od Modulati on MS Power Power Cl a ss Sensit ivit y TDMA Mux Cell Radius 890~915 935~960 1~124 45MHz 270.833kbps 3.692us 576.9us 4.615ms 0.3GMSK 33dBm~5dBm 5pcl ~ 19pcl - 102dBm 8 35Km EGSM 900 Phas e 2 880~915 925~960 0~124 & 975~1023 45MHz 270.833kbps 3.692us 576.9us 4.615ms 0.3GMSK 33dBm~5dBm 5pcl ~ 19pcl -102dBm 8 35Km DCS1800 Phas e 1 1710~1785 1805~1880 512~885 95MHz 270.833kbps 3.692us 576.9us 4.615ms 0.3GMSK 30dBm~0dBm 0pcl ~ 15pcl - 100dBm 8 2Km PCS1900 1850~1910 1930~1990 512~810 80MHz 270.833kbps 3.692us 576.9us 4.615ms 0.3GMSK 30dBm~0dBm 0pcl ~ 15pcl - 100dBm 8 -
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization

Specification

1-2. GSM TX power class

TX Power control level

GSM900

DCS1800

PCS1900

333 dBm

303 dBm

313 dBm

283 dBm

293 dBm

263 dBm

273 dBm

243 dBm

253 dBm

223 dBm

233 dBm

203 dBm

213 dBm

183 dBm

193 dBm

163 dBm

173 dBm

143 dBm

153 dBm

124 dBm

133 dBm

104 dBm

115 dBm

95 dBm

64 dBm

75 dBm

44 dBm

55 dBm

25 dBm

15 1-2

05 dBm

2-1. SGH-X700 RF Circuit Description

2-1-1. RX PART

- FRONT END MODULE(ANTENNA SWITCH MODULE + RX SAW FILTER) (U100) It performs to switch Tx & Rx paths for GSM900, DCS1800 and PCS1900 with logic controls below. - FEM Control Logic Table FESW1 Tx Mode (GSM900) Tx Mode (DCS1800/1900) Rx Mode (GSM900) Rx Mode (DCS1800) Rx Mode (PCS1900) H L L L L FESW2 L H L L L
- VC-TCXO (TCX100) This module generates the 26MHz reference clock to drive the logic and RF systems. It is turned on when the supply voltage (+VCC_SYN_2V8) is applied. After buffering, the 26MHz reference clock is supplied to the other parts of the system through the transceiver pin CLKOUT. - Transceiver (U102) This chip is fully integrated GSM & GPRS tri-band transceiver with RF VCO, loop filters and most of the passive components required in it. It also fully integrated fractional N RF synthesizer with AFC control possibility, RF VCO with integrated supply regulator. Semi integrated reference oscillator with integrated supply regulator. RF Receiver front-end amplifies the E-GSM900, DCS1800 and PCS1900 aerial signal, convert the chosen channel down to a low IF of 100kHz. In IF section, further amplifies the wanted channel, performs gain control to tune the output level to the desired value and rejects DC.

2-1-2. TX PART

The transmitter is fully differential using a direct up conversion architecture. It consists of a signal side band power up mixer. Gain is controlled by 6 dB via 3-wire serial bus programing. The fully integrated VCO and power mixer achieve LO suppression, quadrature phase error, quadrature amplitude balance and low noise floor specification. Output matching/balun components drive a standard 50 ohms single ended load.
2-2. Baseband Circuit description of SGH-X700

2-2-1. PCF50603 (U400)

Power Management Eight 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, 3.0V SIMs, while a self-resetting, 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 PCF50603 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).

Pulse-Width Modulator The Backlight Brightness Modulator (BBM) contains a programmable Pulse-width modulator (PWM) to modulate the intensity of a series of LED's or to control a DC/DC converter that drives LCD backlight. This phone is using PWM control to modulate the LCD backlight brightness.
Clock Generator The Clock Generator (CG) generates all clocks for internal and external usage. The 32.768 kHz crystal oscillator provides an accurate low clock frequency for the PCF50603 and other circuitry.

2-2-2. LCD

X700 has just one 1.9" TFT LCD. 16-bit data lines(LD(0)~LD(15)) transfers data and commands to LCD. There are couple of control signals such as RS, CS, RD, WR, etc. RS stands for "Register Select pin." When RS = 0, data can be written to the index register or status can be read, and when RS = 1, an instruction can be issued or data can be written to or read from RAM. Read or write operation is selected according to RD/WR signals. The data is received when the R/W bit is 0, and is transmitted when the R/W bit is 1. At the falling edge of CS input, serial data transfer is
initiated. On the other hand, at the rising edge of CS input, the data transfer is ceased.

2-2-3. Key

Key recognition part is consisted of 8 ports from PCF5213EL1. KEY_ROW(0:4) & KEY_COL(0:4) These signals performs with the matrix. Any input from the matrix informs the key status to key interface in the PCF5213EL1. Power on/off key is independent of the matrix. Therefore, 'power on/off' signal is directly connected with PCF50603 to turn PCF50603 on. 3.3V LDO(U700) enables Key LED on. Key LED consists of 12 LEDs. It is controlled by "Key_led_on" signal.
2-2-4. EMI ESD Filter (U500)
This system uses the EMI ESD filter (U500) to protect the device from noises from IF CONNECTOR part.
2-2-5. IF connetor (IFC500)
It has 18-pin. They are designed to allocate VBAT, V_EXT_CHARGE, USB_D+, +VBUS, USB_D-, TXD1, RXD1, AUX_ON, EXT1, EXT2 and GND. They connected to power supply IC, microprocessor and signal processor IC.
2-2-6. Battery Charge Management
X700 has a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries inside. If Travel Adapter is connected, "V_EXT_CHARGE" begins to provide the charger IC (to battery) with power (current). When the charging operation is done, "End_of_charge" informs it to PCF5213EL1 to stop the operation. "CHG_ON" signal enables the charger IC to operate in adequate circumstances.

2-2-7. Audio - Part

X700 has several audio-outputs such as stere speaker, receiver, earphone, etc. RCV_P/N signals from CPU are connected to the receiver via analog switche (U602). MIC_P/N are connected to the main MIC as well. YMU762 is a synthesizer LSI for mobile phones. This LSI has a built-in speaker amplifier for outputting sounds that are used by mobile phones in addition to game sounds and ringing melodies that are replayed by a synthesizer. YMU762 has built a speaker amplifier of which maximum out is 580 mW at SPVDD=3.6V in this device. There is Stereophonic analog output for Headphone.

2-2-8. Memory (UME300)

X700 has The as a memory module. is a Multi Chip Package Memory which combines 256Mbit Synchronous Burst Multi Bank NOR
Flash Memory and 512Mbit OneNAND Flash and 128Mbit Synchronous Burst U tRAM. It has 16 bit data line, HD[1~16] which is connected to PCF5213 and MV3315DOQ, also has 24 bit address lines, HA[1~24]. There are 3 chip select signals, CS0n_FLASH, CS1n_RAM, and CS4n_NAND. In the wrting process, WEn is fallen to low and it enables writing process to operate. During reading process, OEn is fallen to low and it enables reading process to operate. Each chip select signals in the PCF5213EL1 choose different types of memory.
2-2-9. PCF5213EL1 (UCP200)
The PCF5213EL1 is mainly composed of embeded DSP and ARM core. The DSP subsystem includes the Saturn DSP core with embedded RAM and ROM, and a set of peripherals. It has 24k16 bits PRAM, 104k16 bits, 32k16 XYRAM and 63k16 XYROM in the DSP. The ARM946E-S consists of an ARM9E-S processor core, 8 kbyte instruction cache and 8 kbyte data cache, tightly-coupled ITCM (Instruction Tightly Coupled Memory) and DTCM (Data Tightly Coupled Memory) memories, a memory protection unit, and an AMBA (Advanced Microcontroller Bus Architecture) AHB (Advanced High-performance Bus) bus interface with a write buffer. HD(0:15), data lines and HA(0:23), address lines are connected to KAP17SG00A (memory), MV3018B (image dsp) and YMU762 (melody IC). It has 64 kbyte SC RAM (0.5 Mbit) and 32 kbyte SC program ROM for bootstrap loader in the ARM core.
HD(0:15), data lines and HA(0:23), address lines are connected to memory and YMU762 to communicate. MV3018B(Camera DSP Chip) controls the communication between ARM core and DSP core. OEn, WEn control the access of memory. KROW, and KCOL recognize the key string input status. It has J-TAG control pins (TDI/TDO/TCK) for ARM and DSP core. J-SEL signal controls different access to ARM and DSP core. ADC(Analog to Digital Convertor) receives the condition of temperature, battery type and battery voltage. HD(0:15), data lines and HA(0:23), address lines are connected to memory and YMU762 to communicate. MV3315DOQ(Camera DSP Chip) controls the communication between ARM core and DSP core. OEn, WEn control the access of memory. KROW, and KCOL recognize the key string input status. It has J-TAG control pins (TDI/TDO/TCK) for ARM and DSP core. J-SEL signal controls different access to ARM and DSP core. ADC(Analog to Digital Convertor) receives the condition of temperature, battery type and battery voltage.

2-2-10. VC-TCXO-214C6 (TCX100, 26MHz)
This system has the 26MHz TCXO, TCO-5871U from Toyocom. AFC controlling signal form PCF5213EL1 controls frequency from 26MHz X-tal. It generates the clock frequency. This clock is connected to PCF5213EL1, YMU762 and UAA3587.
2-2-11. Camera DSP (U303, MV3315DOQ)
MV3315DOQ provides rich video functions up to 30-frame display with minimized tasks in the handset main processor as well as hardware based real-time JPEG compression and decompression. MV3315DOQ directly transmits and previews the RGB data to the LCD graphic memory by processing the sensor output data according to the handset's command. It can save the raw RGB data up to VGA resoultion into its image buffer and allows the host processor to download with scalable sized compressed data. It utilizes 16 bit data bus for communication with the main processor, including bus interface types.

4. Electrical Parts List

Design LOC
AN300 BAT400 BTC500 C100 C103 C104 C105 C106 C109 C110 C112 C113 C114 C115 C116 C118 C121 C122 C123 C124 C126 C127 C128 C133 C134 C135 C136 C137 C139 C140 C141 C147 C148 C149 C150 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C216 C217

Description

ANTENNA-CHIP BATTERY-LI(2ND) HEADER-BATTERY C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP INDUCTOR-SMD C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-TA,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP 4-1

SEC CODE

4202-001060 4302-001119 3711-006026 2203-001385 2203-000812 2203-000233 2203-000995 2203-000995 2203-001201 2203-005057 2203-000812 2203-000233 2203-000233 2703-001748 2203-005393 2203-000812 2203-000425 2203-000425 2203-006190 2203-000233 2203-005234 2203-000585 2203-000330 2203-000254 2203-005393 2203-000254 2203-000812 2404-001406 2203-005234 2203-000654 2203-001383 2203-002677 2203-005053 2203-002668 2203-000696 2203-000254 2203-005482 2203-005482 2203-000812 2203-005482 2203-005482 2203-005482 2203-005482 2203-005482 2203-000812 2203-005482 2203-005482 2203-005482 2203-005482 2203-005482
STATUS SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA

2203-000330 2203-000812 2203-006708 2203-006257 2203-006708 2203-006257 2203-006257 2203-006208 2203-005482 0406-001203 2203-006708 2203-006708 2203-006257 2203-006257 2203-006190 2203-000278 2203-005482 2404-001268 2203-006399 2404-001394 2404-001281 2203-005482 2203-000995 2203-000995 2203-000995 2203-000995 2203-000278 2203-000679 2203-005057 2203-001153 2203-005482 2404-001281 2203-000438 2203-001259 2203-005482 2203-000995 2203-001153 2203-005395 2203-005482 2203-000438 2203-005482 2203-006090 2203-000254 2203-005482 2203-005395 2203-005052 2203-005482
STATUS SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA
C645 C701 C703 C706 C707 C708 C709 C739 C741 C743 CD500 CN600 CN700 CN705 D401 D500 D602 D603 D702 D703 D704 D705 D706 F103 IFC500 L100 L101 L102 L103 L104 L105 L106 L111 L117 L118 L119 L122 L123 L124 L300 L301 L400 L401 L402 L600 L601 L602 L603 L604
C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-TA,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP C-CER,CHIP CONNECTOR-CARD EDGE JACK-EAR PHONE HEADER-BOARD TO BOARD HEADER-BOARD TO BOARD DIODE-SCHOTTKY DIODE-TVS DIODE-SWITCHING DIODE-SWITCHING DIODE-TVS DIODE-TVS DIODE-TVS DIODE-TVS DIODE-TVS FILTER-SAW CONNECTOR-INTERFACE INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD R-CHIP INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD BEAD-SMD INDUCTOR-SMD R-CHIP R-CHIP R-CHIP R-CHIP INDUCTOR-SMD 4-4
2203-005482 2203-006208 2203-006457 2203-000138 2404-001225 2203-006399 2203-006399 2203-006208 2203-005481 2203-005482 3709-001344 3722-002396 3711-005456 3711-005605 0404-001172 0406-001203 0401-001141 0401-001141 0406-001203 0406-001203 0406-001203 0406-001203 0406-001203 2904-001553 3710-001611 2703-001748 2703-001722 2703-001178 2007-000171 2703-001737 2703-002367 2703-002636 2703-002281 2703-001723 2703-002313 2703-001723 2703-002281 2703-002198 2703-001751 2703-001673 2703-002206 2703-002619 3301-001120 2703-001723 2007-000070 2007-000070 2007-000070 2007-000070 2703-002313
STATUS SA SA SA SA SA SA SA SA SA SA SA SNA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA
L606 L607 L700 L701 OSC400 PAM100 Q700 Q701 R100 R103 R104 R105 R111 R112 R113 R114 R115 R116 R117 R120 R121 R122 R201 R204 R205 R208 R212 R213 R218 R220 R222 R300 R301 R302 R303 R304 R305 R306 R307 R309 R310 R311 R312 R313 R314 R315 R316 R317 R318 R319
INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD CRYSTAL-SMD IC-POWER AMP FET-SILICON FET-SILICON INDUCTOR-SMD R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP 4-5

' Power On ' does not work Yes
Check the Battery Voltage is more than 3.4V

No Charge the Battery

No C408(VINT) = 2.7V? Check the PMU related to VINT
Check the Clock at R401=32KHZ

No Resolder OSC400

C427(+VDD_IO_LOW) & C426(+VDD_IO_HIGH) = "H"? Yes
No Check the related circuit
C404(+VDD_GSM_CORE) = 1.875V?
No Check the +VDD_GSM_CORE circuit
Check for the clock at C124 = 26MHz
Check the clock generation circuit (related to TCX100)
Check the initial operation

Yes END

Flow Chart of Troubleshooting

ONKEYN C408

OSC400 RRBAT2 RB414II06N

VBAT C412

+VDD_RX_TX_2V8 C413

L402 +VCC_SYN_2V8

CHGCUR/BATMAX

+VDD_SD_2V9 C414 25

_ONKEY

CHGDRV

CPVBAT

SCP SCN D3VDD

R+VDD_IO_LOW_1V8

+VDD_BT_1V8 C17 C15

RF2VDD RF12VBAT RF1VDD
SIMD3VBAT 40 SIMVCC LCD_BL_ON C423

SIM_VCC

SIM_IO SIM400 SIM_CLK SIM_RST 4 G G G G 8 7
D1VDD SIMIOCD LPD1VBAT LPVDD _SIMRSCD HCVBAT SIMEN HCVDD GPO3 D2VDD GPO2 IOD2VBAT GPO1 GND GND GND GND NC NC 1

SIMCKCD

BACKLIGHT
14 IOVDD +VDD_CAM_2V8 C_REC2
SIMCKHC SIMIOHC MICBIAS _RSTHC

_SIMRSHC

PWREN1

PWREN2

CLK32K

12 +VDD_IO_HIGH_2V9 C426

T400 C425
AUX_ON SCL SDA 32KHz_DIGIT PON_TX
+VDD_IO_LOW_1V8 REF_ON C427 SIMRST SIMCLK

MIC_BIAS_2V1

IT_PMU

7-2. Initial

Initial Failure Yes
TP231 (RSTON) ="H"?
No Check the circuit related to reset

Is U308 pin 4 OK?

No Check the U308
Yes Check the 16bit data signal & memory CE Yes END
+VDD_IO_LOW_1V8 R300 C303 C304 C336 B3 B7 B11 N11 P7 N3 P5 P6 N10 P11 N12 B5 N1 N5 N6 N9 G12 F3 L2 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(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) OEn CS0n_FLASH OEn WEn CS4n_NAND BE1n HA(0) WEn +VDD_IO_LOW_1V8 CLKBURST RSTEXTn CS1n_RAM ADVn 3 GND HA(25) 2 IN VCC 5 U308 OUT 4 RSTEXTn F9 G8 G9 F10 E11 H9 G10 F11 J11 J10 K11 K10 K9 L11 K8 TP315 L10 K6 C2 D2 E2 C3 D3 E3 C4 F8 C9 D9 D10 E9 E10 D11 C10 G7 B4 D4 E8 D8 D6 C11 D12 P3 N4 M4 L4 H11 E4 C1 C6 C7 B8 B9 E5 D7 G6 G11 H10 E7 C5 J9 N8 P1 P2 P9 P2

UME300 B2 B10 C8 E12 F2 J12 K2 M2 N2 P4 P8 P10 M3 L5 K5 J4 J3 H4 G3 G5 K4 L3 K3 J5 H3 H5 G4 F4 M5 L6 M6 N7 K7 M8 L9 M10 J7 J8 M7 L7 L8 H8 M9 M11 A2 A3 A10 A11 A12 R1 R2 R3 R10 R11 R12 E6 D5 F5 F6 B1 B6 B12 C12 D1 E1 F1 F7 F12 G1 G2 H1 H2 H12 H6 H7 J1 J2 J6 K12 K1 L1 L12 M1 M12 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) 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) HD(0:15)

HA(1:16)

VCCU VCCU VCCU VCCU VCCU VCCU VCCQU VCCQU VCCQU VCCQU VCCR VCCR VCCR VCCQR VCCQR VCCQR VCCO VCCO VCCO A0O A1O A2O A3O A4O A5O A6O A7O A8O A9O A10O A11O A12O A13O A14O A15O A0RU A1RU A2RU A3RU A4RU A5RU A6RU A7RU A8RU A9RU A10RU A11RU A12RU A13RU A14RU A15RU A16RU A17RU A18RU A19RU A20RU A21RU A22RU A23R /OEU /OER /CER /OEO /WEO /CEO /WPR /UBU /LBU /WER /WEU CLKO /RESETR _CSU INTO AVDO _MRSU VPPR _RESETO NC NC NC NC NC NC NC
VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS DQ0O DQ1O DQ2O DQ3O DQ4O DQ5O DQ6O DQ7O DQ8O DQ9O DQ10O DQ11O DQ12O DQ13O DQ14O DQ15O DQ0RU DQ1RU DQ2RU DQ3RU DQ4RU DQ5RU DQ6RU DQ7RU DQ8RU DQ9RU DQ10RU DQ11RU DQ12RU DQ13RU DQ14RU DQ15RU DNU DNU DNU DNU DNU DNU DNU DNU DNU DNU DNU CLKRU RDYR_WAITU RDYO _AVDRU NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC

HD(0:15)

HA(1:24)

TP307 R312

+VDD_IO_LOW_1V8 CLKBURST WAITn ADVn

+VDD_IO_LOW_1V8

MEMORY

7-3. Charging Part

Abnormal charging part Yes
Check the U502 pin 10 > 4.9V
Check the circuit related to

V_EXT_CHARGE

No U502 pin 6 = "L"? Resolder or replace U502
No U502 pin 4 = "L"?

AUX_ON signal

Check the U502 pin 9 4.2V
No Resolder or replace U502

+VDD_IO_HIGH_2V9 VBAT

+VDD_IO_HIGH_2V9
R518 UUSBIN 2 IUSB 3 ITERM DCIN 10 BAT 9 IDC 8 USBPWR 7 EN 6 R519

V_EXT_CHARGE MES_BATT

AUX_ON END_OF_CHG

4 PWR 5 CHRG

USB_IN CHG_ON
GND 11 R520 R521 R522 C507 ZD502 R523 C502 ZD501 C504 C503

7-4. Sim Part

Phone can't access SIM Card
No SIM400 pin 1,5 = "H"? Check the sim charge pump
After Power ON, Check SIMCLK Signal on pin3 of SIM400 in a few

No Check the Clock

No After SIM card insert, SIM400 pin 2 = "H(SIM_RST)"? Replace PBA

Check the SIM Card

L402 +VCC_SYN_2V8 C414

+VDD_SD_2V9

+VDD_BT_1VCC+VDD_CAM_2V8 C424 13

R402 +VDD_IO_LOW_1V8

D1VDD SIMIOCD LPD1VBAT LPVDD _SIMRSCD HCVBAT SIMEN HCVDD GPO3 D2VDD GPO2 IOD2VBAT GPO1 IOVDD _REC2 GND GND GND GND NC NC 1

SIMCKHC

SIMIOHC

MICBIAS

_RSTHC

7-5. Microphone Part

Microphone does not work
Yes No Check the connection from MIC Resolder MIC
No Check the connection status to MIC Resolder the C637, C638, C608, C600, C609, C614, C603, C612, C611, C610, etc

Check MIC_BIAS = ' H' ?

Resolder R600, R601, C601, R602, R603

Check the MIC

Replace the MIC

Close to microphone

C600 C637 MIC_CP C601 R601

Close to MCP

C602 C603 MIC_P

R617 R618 MIC600

C609 C612
MIC_N C638 C614 R602 C613

MICROPHONE

7-6. Speaker Part(Melody)
Speaker does not work Yes No U302 pin 5 = 2.9V? Resolder or replace U302
Check the Clock signal at Pin 1 of U305 (26MHz)
Check the clock generation circuit (related to U102 and U305)

Yes No Resolder U300

U300 pin 10, 11 1.8V? (When U300 operate)

Yes No Resolder CN700

CN700 pin 23,25 1.8V? (When U300 operate)
Yes No Is Speaker working? Change the Speaker
+VDD_SLEEP_2V8 +VDD_SLEEP_2V8 U302 C320 26M_CLK R316 RNC IN GND OUT 4 VCC 5 R315 26M_DIGIT
OEn +VDD_IO_LOW_1V8 +VDD_IO_HIGH_2V9 HA(1) CS5n_MELODY WEn HD(0) HD(1)

19 VIB 18 17

26M_DIGIT

CLKI LED /IRQ

D2 D3 D4 U305 D5 D6 D7
HD(2) HD(3) HD(4) HD(5) HD(6) HD(7)
RSTON 7 R9 /RST NC PLLC VDD VSS VREF

HPOUT-L/MONO

MTR SPOUT2

HPOUT-R

SPOUT1
AUX_L +VDD_IO_HIGH_2V9 AUX_R
U309 ANL RADIO_L 1 A0 VCC 12

2 0BGND

1BSVCC 1B1 S8 7

MELODY IC

AUDIO_SEL1 AUDIO_SEL1

ANR RADIO_R

A1 0B1 GND

7-7. Key Data Input

Check Initial Operation
When any key input is given, is there something on LCD (display)?
No Check the Dome sheet & Key Pad
When one of the keys is pushed, KBIO signal is OK?

Replace the Key FPCB

CN17 19

KEY_COL(0) KEY_ROW(4)

* V702
+VDD_BL_3V3 +VDD_BL_3V3 ONKEYN

* V701

KEY_ROW(0) KEY_ROW(1) KEY_ROW(2) KEY_ROW(3)

V700 *

KEY_COL(4) KEY_COL(3) KEY_COL(2) KEY_COL(1)

7-8. Receiver Part

Receiver does not work Yes No V600, V601 = 1.5V? Resolder UCP200 or change PBA
No SPK +,- PAD = 1.5V? Resolder UCP200 or change PBA
Yes No Check the soldering of the spaeaker contacts Modify the speaker wire soldering

Yes No Is Receiver working? Replace the Speaker
AUXDAC2 V11 AUXDAC3 U14 VREF V12 MICBIAS QN QP IN IP AUXADC1 AUXADC2 AUXADC3 AUXADC4 AUXADC5 V8 V7 U8 U7 J1 K1 K2 L1 L2 C216

AFC RAMP_GSM

UCP200
RX_TX_QN RX_TX_QP RX_TX_IN RX_TX_IP MES_BATT VF TEMP_PRODUCT EAR_ADC
J17 HFR1 H18 HFR2 K15 EAR1 J15 EAR2 MICN MICP AUXMICN AUXMICP ANL ANR M18 N18 L17 M17 K18 L18 MIC_N MIC_P AUXMICN AUXMICP ANL ANR FSC +VDD_IO_LOW_1V8 DCL R203 DD NC DU AMP_EN EAR_EN END_OF_CHG

RCV_P RCV_N EAR1 EAR2

V203 +VDD_IO_HIGH_2V9

C218 C219

D13 FSC E11 DCL B13 DD B14 DU N1 GPIOA24 T1 GPIOA25 L9 GPIOA26 SCL U17 M14
DAI & Bluetooth data Interface

RCV_P RCV600 RCV_N V601

7-9. Back Light (for LCD)
Backlight does not work Yes No Set LCD Contrast on high level
Is LCD Contrast set on high
No U704 pin 1 = 7V ? Resolder U704
No U704 PIN 4 = Resolder R704

Replace the LCD Module

7-10. Key Back Light
Main Key LED does not work Yes No U700 pin1 = H ? Check the U700 related to "+VDD_BL_3V3"

7-11. Camera part

"Camera" function does not work Yes
No Check the Camera connector status (CN705) Reconnect the camera module
Yes No CN705 pin 5 = H ? Resolder R702

Yes No R315 = 26MHz?

Check U302(pin2, pin4) related to 26Mhz and R315
Is there another problem?
Replace the camera module
LD(0:15) LD(0) LD(1) LD(2) LD(3) LD(4) LD(5) LD(6) LD(7) LD(8) LD(9) LD(10) LD(11) LD(12) LD(13) LD(14) LD(15) M10 LD0 M9 L10 LD1 LD2 L9 L8 LD3 LD4 K10 LD5 K9 LD6 K8 LD7 K7 LD8 J9 LD9 J8 LD10 H8 LD11 G9 LD12 G8 LD13 F9 LD14 F8 LD15 M3 LD16 M4 LD17 L2 M2 M1 L1 D1 C1 G10 H10 C10 A8 A9 B9
U303 M8 DVSS F10 DVSS L5 DVSS K2 DVSS J10 DVSS H9 DVSS F3 DVSS D3 DVSS C9 DVSS C8 DVSS2 B3 DVSS A7 DVSS M5 DVSS MD0 MD1 MD2 MD3 MD4 MD5 MD6 MD7 MD8 MD9 MD10 MD11 MD12 MD13 MD14 MD15 D2 E1 E2 E3 F1 F2 G1 G2 H1 H2 H3 J1 J2 J3 K1 K3 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)
IMAGE_INT +VDD_CAM_2V8 WEn OEn CS3n_IMAGE HA(1) HA(2) R319 26M_DIGIT MCLK PCLK HSYNC VSYNC M_SDA M_SCL IMAGE_RST R321 C321 C322 +VDD_IO_HIGH_2V9 C323 +VDD_GSM_CORE_1V875 V300
MINT MWEN MREN MCS MA0 MA1
CLKI CLKO SMCLK PCLK HREF VSYNC A10 SDA B10 SCL A1 RESET MVDD MVDD RVDD RVDD LVDD LVDD SVDD SVDD CVDD CVDD CVDD CVDD NC NC
L3 C3 G3 E8 K4 D9 B8 A2 L4 C6 L7 E2
GPIO8/MD16 B1 GPIO7/MD17 B2 C2 GPIO6 C4 GPIO5 C5 GPIO4 C7 STROBE/GPIO3 D8 GPIO2 D10 GPIO1 E9 GPIO0 LRS LCS1 LCS2 LREN LWEN DI0 DI1 DI2 DI3 DI4 DI5 DI6 DI7 K5 K6 L6 M6 M7 A3 B4 A4 B5 A5 B6 A6 B7 RS LCD_CS L_RD L_WR Y(0) Y(1) Y(2) Y(3) Y(4) Y(5) Y(6) Y(7) Y(0:7)