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VK Quality Group GSM C/S

☞

☞

Power Management Block

Power Management Block

A2V8

7,8

2

BAT_RTC

SIM_RST

4

C514
220n

C509
2u2/6.3V(1608)

C507
220n

2

D2V8

VCC_RTC

V_CORE

AVCC

4

E7

AVCC

AVCC

C501
470p

4

V_BAT

4

VIBRATOR

LED_INDICATE

V_BAT

C506
2u2/6.3V(1608)

2

2

R502
4K7

SIM_VCC

C504
2u2/6.3V(1608)

CHG_IN

A2V8

C512
2u2/6.3V(1608)

SIMCLK

+

C511

22u/6.3V(1608T)

2

VCC

DCON

R505

100K

C513
100n

2

R503

1K2

7

BAT_RTC

D2V8

4

R507
1K2

BAT_RTC

C503

10u/6.3V(1608)

SIM_CLK

2,3,35,7

D501
RB520S-30

2

D2V8

C510
2u2/6.3V(1608)

2,6,7,8

VCC

SIM_1V8/3V

EN_VIB

+

C505
33u/6.3V(2212CC)

2

VCC

UP_ON_OFF

SIMRST

2,3,35,6

AVCC

LED_ID

B4

V_CORE

VCC

2,4,6,7

R508

n.m

R504
1M

R506
2K2

V_CORE

4
2

/RESET

V_CORE

4,7,8

CHG

VIBRATOR

SIM_VCC

L501
LPS3010-103ML

BAT_VOLT

B1

2

VCC

C515
220n

V_BAT

7

SIM_IO

V_CORE

CLK13M_EN

A1

4

Q501

NSL12AW

VCC

R501

1K

2

U501

AT73C202

D2
C3

D6

D3

F5

C1

C2

E1

D1

D5
C6

F6

G6

F7

G5

G4

G7

A5

B5

B4

A3

C4

G1

C7

E5

A7

E7

A2

A1

E6

F2

B3

A4

A6

G3

D4

B6

E3

B2

F4
E4
F3

G2

D7

B7

C5

F1

E2

B1

CHG-IN
CHG

DC-ON

GA

T

E

-C

H

G

BAT-VOLT

FLASH-LED

LED-OUT

VBATT

GN

D

ON/OFF
UP-ON/OFF

RESET_N

VIN-REG1

LX

ECO-MODE

V-CORE

GN

D

1

VIN-REG2

EN-ANALOG_N

AVCC

VIN-RF

EN-RF2

DVCC

CREF

TEST

AG

N

D

V-VIB

RF

G

N

D

VRF2

EN-VIB

SIM-CLK

BUZ-OUT

BU

Z

-G

N

D

BAT-RTC

SIM-PWREN

BB1

V-PAD

SIM-VCC

EN-RF1

SIM-1V8/2V9
RESET-IN
CLK-IN
DATA-IO

VIN-VIB

VCC-RTC

BUZ-IN

SIM-RST

SIM-IO

VRF1

G4

2

AVCC

ON_OFF

SIM_VCC

A2V8

C508
220n

B6

C502
10n

AVCC

D2V8

SIM_PWREN

2

A2V8

SIMDATA

VCC

V_BAT

7

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Summary of Contents for VK4500

Page 1: ...VK Quality Group GSM C S GSM GSM SERVICE MANUAL SERVICE MANUAL VK4500 VK4500 ...

Page 2: ...ck twisted pair wire could reduce the measurement error as the wire contains less RF resistance When disassembling the phone set you must use a driver tool meeting standard requirements When making repairs with power on after connecting the test package note that dangers such as overcurrent parts deterioration caused by short circuit may occur Note that PCB land may be detached due to overheating ...

Page 3: ...ents Chapter 1 Overview Features Chapter 2 APPEARANCE CONFIGURATION APPEARANCE CONFIGURATION Chapter 3 Assembling Disassembling Methods Chapter 4 Block Diagram Chapter 5 Schematic Chapter 6 PCB Diagram Chapter 7 Trouble Shooting Appendix Electrical Part List ...

Page 4: ...VK Quality Group GSM C S CHAPTER 1 CHAPTER 1 OVERVIEW FEATURES OVERVIEW FEATURES 1 1 Overview Overview 2 2 Features Features 3 3 Standard Standard ...

Page 5: ...atures are fully supported and GSM 850 PCS 1900 GSM Phase II features are fully supported and parts of parts of the GSM Phase II features are also supported the GSM Phase II features are also supported About the SIM Toolkit VK 4500 Mobile Phone supports up to Class About the SIM Toolkit VK 4500 Mobile Phone supports up to Class 3 3 including Class 1 2 For speech communication VK 4500 Mobile P incl...

Page 6: ...mcorder supporting Motion JPEG Flashlight No MPEG4 N A H 263 N A H 264 N A Video output N A Sound format MIDI sp MIDI MP3 AAC Ringtones Yes 64poly MIDI MP3 MP3 playback Yes Voice support codec AMR TBD SMS EMS MMS Yes WAP 2 Java MIDP2 0 CLDC1 1 Video Audio Data Service Design Network LCD Camera Catagory Sub Catagory Description Instant Massage N A e mail N A Nor SRAM 128 Mb 64 Mb Nand 1Gb External ...

Page 7: ... MMS only Save Edit Subject MMS only Preview MMS only Exit Add Contact Edit Email MMS only Outbox unsent items sent items Send Edit Delete Delete All Copy to SIM Phone SMS only Move to SIM Phone SMS only Details MMS only Inbox Delete Delete All Reply Reply All MMS only Forward Callback Extract Details Copy to SIM PHONE SMS only Move to SIM PHONE SMS only Information Message Reception On Off Read T...

Page 8: ...MS Built in GPRS Built in Class 10 New Delete All Schedule List Morning Call Reminder Memo Edit and view 10 Memos Addition Subtraction Multiplication Division Length conversion Weight conversion Volumes conversion Surface conversion Temperature conversion Setting local time Number of selectable cities 65 Cities Player Edit Play List Option Repeat Shuffle Release Release 96 Refresh O World time MP3...

Page 9: ...z PCS 1929 9 1989 9MHz GSM900 2W Max GSM850 2W Max DCS 1W Max PCS 1W Max 1 Rated Output 2 Frequency Range 6 Frequency Stability 9 RF1 Local Oscillation Frequency GSM850 896MHz EGSM 798MHz DCS 766MHz PCS 854 MHz Frequency Multiplying PLL Synthesize GMSK GSM900 GSM850 90Hz DCS PCS 180Hz TQ7M4006 200KHz E GSM 975 1023 1 124 P GSM 1 124 GSM850 128 251 DCS 512 885 PCS 512 810 2 ChannelSeparation 200KHz...

Page 10: ...VK Quality Group GSM C S CHAPTER 2 CHAPTER 2 APPEARANCE CONFIGURATION APPEARANCE CONFIGURATION 1 1 Appearance Appearance 2 2 Configuration Configuration 3 3 LCD Panel LCD Panel ...

Page 11: ...VK Quality Group GSM C S Appearance Appearance ...

Page 12: ...VK Quality Group GSM C S Icons Icons ...

Page 13: ...VK Quality Group GSM C S Icons Icons ...

Page 14: ...VK Quality Group GSM C S Icons Icons ...

Page 15: ...VK Quality Group GSM C S LCD Panel LCD Panel ...

Page 16: ...VK Quality Group GSM C S CHAPTER 3 CHAPTER 3 ASSEMBLING DISASSEMBLING ASSEMBLING DISASSEMBLING 1 1 Assembly Drawings Assembly Drawings 2 2 Disassembling Methods Disassembling Methods ...

Page 17: ...VK Quality Group GSM C S 1 Assembly Drawings 1 Assembly Drawings 1 1 Exploded View Exploded View 2 2 Mechanical Parts List Mechanical Parts List 3 3 Ass Ass y y View View ...

Page 18: ...xploded View Parts List Exploded View Parts List 10 27 26 24 23 21 20 25 19 18 17 15 13 12 11 9 8 7 6 5 4 3 2 1 14 16 22 48 47 52 46 45 44 42 40 39 38 36 34 33 32 35 41 51 50 49 43 37 53 54 55 28 29 30 31 56 57 58 59 60 61 62 63 ...

Page 19: ...CO LOWER 1 25 SLIDE HINGE 1 26 SCREW 4 27 COVER SCREW FOLDER R 1 28 COVER SCREW FOLDER L 1 29 KEYPAD NAVI 1 30 FPC NAVI ASSY 1 31 DECO FRONT 1 32 CASE FRONT 1 33 GASKET FORM IO 1 34 RUBBER FRONT 1 NO DESCRIPTION Q TY 35 GASKET KEYPAD 2 36 CUSHION FRONT EL 1 37 KEYPAD DIAL 1 38 SCREW 6 39 MAIN PCB ASSY 1 40 CAMERA MODULE 1 41 SPEAKER 1 42 KNOB SIDE 1 43 COVER IO 1 44 CUSHION MIC 1 45 INTENNA 1 46 K...

Page 20: ...VK Quality Group GSM C S Ass Ass y y View View Folder Upper Ass y Folder Upper Folder Upper Ass Ass y y ...

Page 21: ...VK Quality Group GSM C S Ass Ass y y View View Folder Lower Ass y Folder Lower Folder Lower Ass Ass y y ...

Page 22: ...VK Quality Group GSM C S Ass Ass y y View View Front Case Ass y Front Case Front Case Ass Ass y y ...

Page 23: ...VK Quality Group GSM C S Ass Ass y y View View Rear Case Ass y Rear Case Rear Case Ass Ass y y ...

Page 24: ...2 Disassembling Methods 2 Disassembling Methods 1 1 Tools Tools 2 2 Battery Rear Case Disassembling Battery Rear Case Disassembling 3 3 Main PCB Disassembling Main PCB Disassembling 4 4 Folder Disassembling Folder Disassembling ...

Page 25: ...ling tools are as below 1 Star shaped Screw Driver 2 Hinge Remover 3 Tweezers 4 Cross tip Screw Driver 1 2 3 4 In disassembling the VK Mobile Phone set you must use tools meeting standard specifications do not exert excessive force Otherwise the phone set may be damaged ...

Page 26: ...VK Quality Group GSM C S Battery Rear Case Battery Rear Case Disassembling Disassembling ...

Page 27: ... Quality Group GSM C S Screws Screws Unscrew four screws on the back of the phone Turn the screws anticlockwise using cross shaped screwdriver Use a screwdriver meeting standard specifications to unscrew ...

Page 28: ...ld the rear case with one hand while holding the front case with the other hand 2 Widen a space to make a gap 3 Hold the knob lock with your hand and then slowly press down the rear case for removal Exerting excessive force could damage the rear case ...

Page 29: ...VK Quality Group GSM C S Main PCB Main PCB 1 Unscrew like a picture 2 Take off Speaker 3 Take off Intenna ...

Page 30: ...VK Quality Group GSM C S Main PCB Main PCB Disassembling Disassembling ...

Page 31: ...VK Quality Group GSM C S Main PCB Main PCB 1 Disconnect Key FPCB Camera Connector from the PBA 2 Take off the PBA 1 1 3 ...

Page 32: ...VK Quality Group GSM C S Lower Case Lower Case Ass Ass y y Disassembling Disassembling ...

Page 33: ...VK Quality Group GSM C S Exploded View Exploded View 1 Unscrew like a picture 1 2 Un Hook like a picture 2 3 Take off Keypad FPC EL Navi and Deco front 1 2 3 ...

Page 34: ...VK Quality Group GSM C S Exploded View Exploded View 1 Unscrew like a picture 2 Take off Slide Bottom case ...

Page 35: ...VK Quality Group GSM C S Exploded View Exploded View 1 Unscrew like a picture 2 Take off the Hinge Slide from lower case ass y ...

Page 36: ...VK Quality Group GSM C S LCD LCD Ass Ass y y Disassembling Disassembling ...

Page 37: ...VK Quality Group GSM C S Exploded View Exploded View 1 Take off LCD Module from Front upper case ...

Page 38: ...VK Quality Group GSM C S Exploded View Exploded View Front upper Front upper Ass Ass y y 1 2 Front upper Ass y 1 Window main 2 ...

Page 39: ...VK Quality Group GSM C S Exploded View Exploded View Lower Case Lower Case Ass Ass y y 1 Lower case Ass y 2 1 3 HInge Slide 2 Cover screw main L R 3 ...

Page 40: ...VK Quality Group GSM C S Exploded View Exploded View Front case Front case Ass Ass y y Front case Ass y 1 5 1 2 4 6 Camera Module 2 Deco Front 3 3 Keypad 4 Keypad Navi 5 FPC EL Navi 6 ...

Page 41: ...C S Exploded View Exploded View Rear case Rear case Ass Ass y y Rear case Ass y 1 knob side 2 2 3 4 7 6 8 10 1 cover ear jack 3 4 Knob camera Cover RF 5 5 9 Cover screw main L R 6 Cover IO 7 Knob Lock 8 Speaker 9 Intenna 10 ...

Page 42: ...VK Quality Group GSM C S CHAPTER 4 CHAPTER 4 BLOCK DIAGRAM BLOCK DIAGRAM 1 1 RF Block Diagram RF Block Diagram 2 2 BASEBAND Block Diagram BASEBAND Block Diagram ...

Page 43: ...VK Quality Group GSM C S MODULE AND APPLICATION Block Diagram MODULE AND APPLICATION Block Diagram ...

Page 44: ...in Block 4 4 NAND Block NAND Block 5 5 Peripheral Key Block Peripheral Key Block 6 6 Power Mgmt Block Power Mgmt Block 7 7 RF Block RF Block 8 8 Audio Video Block Audio Video Block 9 9 Bluetooth Block Bluetooth Block 10 10 Battery Charging Block CHAPTER 5 CHAPTER 5 SCHEMATIC SCHEMATIC Battery Charging Block ...

Page 45: ..._NTRST TCK PCM_CLK TDO PCM_OUT TDI PCM_IN TMS PCM_SYNC CTS RTS TXD COL 0 4 UP_ON_OFF RESET CS2 CS1 CLK13M_EN EL_MAIN_EN LED_ID A22 A23 VCC SIM_PWREN RD 1V8 CLK13M A2V8 V_BAT CLK_32K V_BAT DCON AVCC BOOT FLIP_KEY TCK PCM_CLK HS_MIC_P V_BAT NAND_CS RXD V_CORE VCC VIBRATOR INT1 RTCK MICIN D2V8 SIMCLK EL_NAVI_EN JTAG_NTRST UART_TXD ROW 0 4 HS_KEY_DET BAT_ID 3V3 BAT_VOLT V_BAT BT_RST SIM_1V8 3V CHG_IN ...

Page 46: ...8V COL4 1 8V 2 8V JTAG_NTRST IO_AUDIO DAI_RST 2 8V JTAG_TMS FSY_G711 CODEC_8K_EN 2 8V JTAG_TCK FBCK_G711 DAI_PCMCLK 2 8V JTAG_TDI FDI_G711 DAI_PCMIN 2 8V JTAG_TDO FDO_G711 DAI_PCMOUT GPIO0 BOOTn 1 8V 1 8V GPIO18 PWM1 EXTINT1 SIMPRES 2 8V GPIO11 SPI_DAT2 DSR1 2 8V GPIO16 RxD1 2 8V GPIO17 CTS1 2 8V GPO3 SPI_CLK2 DTR1 2 8V GPO4 TxD1 ADD22 1 8V 2 8V GPIO12 SPI_DAT3 SDA 2 8V GPIO13 SPI_CLK3 SCL GPIO20 ...

Page 47: ...7 L1 L2 L5 L6 L7 L8 B4 C4 B6 C3 C5 D3 E3 G8 H8 J1 K4 K6 B5 L4 J8 K7 L3 D4 K5 K1 J2 F5 F4 E4 E5 C6 G7 D6 H1 D5 K8 F3 C2 A1 A2 A7 A8 M1 M2 M7 M8 K2 K3 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 I O0 I O1 I O2 I O3 I O4 I O5 I O6 I O7 I O8 I O9 I O10 I O11 I O12 I O13 I O14 I O15 VSS VSS VSS VSS VSS VSS VSS VSS NC NC NC NC NC NC NC NC NC NC VCC VCC VCCQ VCCQ VCC...

Page 48: ... L9 L10 M9 A10 A12 Vss A14 A11 N C DQ0 A15 A13 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 RP CE OE WE AVD A1 RDY A2 INT CLK N C VccCore N C A3 N C VccIO A7 A9 Vss A4 A5 A6 A8 A0 N C N C N C N C N C N C N C N C N C N C N C N C N C N C N C NAND_CS D4 V_CORE A14 A9 C352 100n D5 D 8 15 A4 A1 D 0 7 D15 R351 0R V_CORE A8 D7 C351 100n 7 A16 D0 RESET D14 2 D10 A12 2 D 8 15 A2 5 A3 A...

Page 49: ...USB D GND GND V_BAT BATT_ID GND GND GND V417 ICVS0505500 COL3 1 V404 ICVS0505500 7 COL4 1 R404 100R R1 n m USB_D 8 ROW0 1 R408 100K R401 100R 1V8 COL0 1 SIDE KEY UP V414 ICVS0505500 R425 100K HF_REC D2V8 R426 47K V_BAT END COL4 R428 220K 5 J405 SM05 F200F 06 5 6 7 1 2 3 9 10 GND VPP I O VCC RST CLK GND GND S413 F PCB 3 2 1 4 R420 100R COL 0 4 5 ROW3 1 ROW3 1 SIM_RST EL_NAVI_OUT S403 3 1 2 KEY_MATR...

Page 50: ... n m R504 1M R506 2K2 V_CORE 4 2 RESET V_CORE 4 7 8 CHG VIBRATOR SIM_VCC L501 LPS3010 103ML BAT_VOLT B1 2 VCC C515 220n V_BAT 7 SIM_IO V_CORE CLK13M_EN A1 4 Q501 NSL12AW VCC R501 1K 2 U501 AT73C202 D2 C3 D6 D 3 F5 C1 C2 E1 D 1 D5 C6 F6 G6 F7 G5 G4 G 7 A5 B5 B4 A3 C4 G1 C7 E5 A 7 E7 A 2 A1 E6 F2 B3 A 4 A6 G3 D4 B6 E3 B2 F4 E4 F3 G2 D7 B7 C5 F1 E2 B1 CHG IN CHG DC ON G A T E C H G BAT VOLT FLASH LED...

Page 51: ...N GND DCS PCS_IN VRAMP VBATT PA_EN Band select GND DCS PCS_OUT GSM_OUT GND GND Vcon DCS GND GND GND GND Vcon GSM GND GND GND GND GND GND Vcc2G Vcc3 Vcc2D GND ANT602 EXF 0023 02 1 R616 0R 2 V_BAT L605 n m R624 0R GSM850 900 TX R606 1K U603 SI4210 17 18 19 20 21 22 23 24 31 30 2 1 3 4 5 6 7 32 29 28 27 26 25 9 10 11 12 13 14 15 16 8 33 RFIPP RFIPN RFIDP RFIDN RFIEP RFIEN RFIAP RFIAN XTAL_1 XTAL_2 SE...

Page 52: ...6X 2 4 3 1 5 6 GND Y1 E A Vcc Y0 R724 2R2 F702 ICVE21054E250R201 9 7 5 3 1 10 2 4 6 8 R752 24K 1 VIBRATOR C_RST C_PCLK A1 MSCLK 2 L_D10 LD4 J704 3PIN 1 2 3 SPK_N SPK_P SPK_P L_D15 C_MCLK L_D14 BD702 BLM21PG300SN1 1 2 D2V8 D8 C727 n m 3V3 L_D14 R705 100K C756 n m C749 100n INT2 1V5 SPK_N C_VS A21 2 DSP_CS1 L_D12 CD3 5 LD14 C728 n m V702 ICVS0505500 NAND_CS 5 LCD_BL CS2 D2V8 D4 HS_MIC_N R748 100K 1 ...

Page 53: ... RCA2450P90 1 2 3 U802 LFB212G45BA1B763 1 3 5 4 2 6 7 8 NC S D GND NC GND D GND 5 2 C812 n m TP802 TCK BT_CTS 2 TP803 TMS TXD VCC C811 220n TDO PCM_OUT BT_EN BT_RXD R827 10K 4 E STLC2500A U801 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 D1 D2 D3 D8 D9 D10 E1 E2 E3 E8 E9 E10 F1 F2 F3 F8 F9 F10 G1 G2 G3 G8 G9 G10 H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 J1 J2 J...

Page 54: ...VK Quality Group GSM C S Battery Charger Block Battery Charger Block ...

Page 55: ...VK Quality Group GSM C S CHAPTER 6 CHAPTER 6 PCB DIAGRAM PCB DIAGRAM 1 1 Main PCB Main PCB 2 2 RF Area RF Area 3 3 BASEBAND Area BASEBAND Area 4 4 Key Key Ared Ared ...

Page 56: ...VK Quality Group GSM C S Main PCB Main PCB Top Top Bottom Bottom ...

Page 57: ...VK Quality Group GSM C S Module Area Module Area ...

Page 58: ...VK Quality Group GSM C S RF Area RF Area ...

Page 59: ...VK Quality Group GSM C S BASEBAND Area BASEBAND Area ...

Page 60: ...n Trouble KEY Detection Trouble CHAPTER 7 CHAPTER 7 TROUBLE SHOOTING TROUBLE SHOOTING 1 1 Power Power On Trouble On Trouble 2 2 Buzzer Trouble Buzzer Trouble 3 3 LCD Trouble LCD Trouble 4 4 Charging Trouble Charging Trouble 5 5 Vibrator Trouble Vibrator Trouble 6 6 Backlight Trouble Backlight Trouble 7 7 SIM Detection Trouble SIM Detection Trouble 8 8 Ear Ear Microphone Trouble Microphone Trouble ...

Page 61: ...igher Than 3 4V When press power button then V_CORE or other power alright Charge the battery Check the battery NO Check U501 PMIC NO YES YES CLK 13M CLK 32K is alright When boot phone can you hear melody Check U201 V250G Check LCM or U701 Backend IC NO YES NO YES Replace Main board END START ...

Page 62: ... GSM C S Melody Trouble Melody Trouble START END NO NO YES YES YES Check the melody Signal is output from 25 26pin of U706 Contact with Main board is alright Check the pin of the Speaker Check Melody IC Change Speaker ...

Page 63: ...ter STA RTT E N D N O N O N O N O N O Y E S Y E S Y E S Y E S Y E S Y E S N O Test Mode LCD CON Connect ed Reassemble LCM CON LCD CON Well Solder Resolde ring Replace CON Replace FPCB FPC B alrig nt LCM D2V8 OK LCM Control DATA Signal OK U701 alright Replace U701 Replace LCM ...

Page 64: ...e is between 3 4V 4 2V TA CLA DTC voltages are equal to 5 2V 600mA Reassemble battery pack Check battery pack When Q501 3pin is High then Q501 1 2 5 6pin is High Replace Q501 Check one of TA CLA and DTC Re download S W When CHG_IN 5V then Q501 3Pin is High YES NO NO NO YES YES YES YES NO NO CASE 1 CASE 2 Re mount J401 J401 connector is well soldered on the PCB NO YES ...

Page 65: ...roup GSM C S Vibrator Trouble Vibrator Trouble Replac e Vibrator STAR T J701 30pin High END Manner Mode Vibrator Well Solder Reassembl e Vibrator U706 28pin High Replace U706 Replace U501 N O N O YE S YE S YE S N O ...

Page 66: ...Group GSM C S LCD Backlight Trouble LCD Backlight Trouble START LCD_BL FPCB Assem ble OK Main LCD_BL J701 28pin HIGH Reassem ble FPCB Check U201 Folder U1 8pin HIGH Check U1 Replace LCM END YES NO NO NO NO YES YES ...

Page 67: ...ell Soldering Rework J404 U402 4pin EL_NAVI_EN HIGH Check U201 U402 8 9pin HIGH Check U402 L401 Replace EL_NAVI_KEY FPCB NO NO NO YES YES YES Contact between J406 and EL_SHEET Recontact EL_SHEET U402 1pin EL_MAIN_EN HIGH Check U201 U402 8 10pin HIGH Replace MAIN EL_SHEET Check U402 L401 YES YES YES NO NO NO END ...

Page 68: ...IM Detection Trouble Start SIM card has no problem Change the SIM card SIM connector J405 is well soldered and pins of J405 is normal Resolder or Rework J405 SIM_VCC J405 1 and SIM_CLK J405 3 is normal Check U501 and U201 YES NO END YES YES YES NO NO ...

Page 69: ...M C S Ear Ear Microphone Trouble Microphone Trouble START Headset Detect Possible HS_DET alright V703 Check Headset And U201 NO NO YES YES Output of sound Waveform from C722 C726 Check U201 Check Headset And Earphone END ...

Page 70: ...oup GSM C S SLIDE Detection Trouble SLIDE Detection Trouble START U403 Well Solder Rework U403 NO NO YES Check U501 Check U201 END Slide KEY U403 1pin 2 8V Near Magnetic U403 2pin Any change Replace U403 NO YES YES ...

Page 71: ... Group GSM C S Key Detection Trouble Key Detection Trouble START Key Dome Switch All right Replace Dome Switch NO NO YES Rework Resister Check U201 END KEY Detect trouble R401 5 414 417 420 422 423 All right YES ...

Page 72: ...oard Reassemble Camera module With Camera connector is Located in the Low position NO YES When Camera Active the Camera driver source Voltage is 2 8V alright J702 21 22pin Check Data signal of U701 F706 F709 Camera connector is Well soldered to the MAIN Board Resolder the Camera Connector of Main PCB Check CCM U705 J702 Check U701 and F706 F709 Check Camera Module END YES YES YES NO NO NO ...

Page 73: ...n 25 26 29 28 12 13 DC 2 8V 5 Replace U603 if defective NO YES YES YES NO NO Set Phone Test mode 62CH 7level setting TCH 62CH 60dBm setting BCCH Spectrum analyzer as shown in Remarks Oscilloscope as shown in Remarks Remarks 1 Spectrum analyzer SPAN 1MHz RBW 3MHz VBW 1MHz Press the trace key of spectrum analyzer on checking test point and press the max hold key of spectrum analyzer 2 Oscilloscope 5...

Page 74: ...VK Quality Group GSM C S TX Power Trouble E TX Power Trouble E GSM GSM ...

Page 75: ...VK Quality Group GSM C S RX Sensitivity Trouble E RX Sensitivity Trouble E GSM GSM ...

Page 76: ...VK Quality Group GSM C S RX Sensitivity Trouble E RX Sensitivity Trouble E GSM GSM ...

Page 77: ...VK Quality Group GSM C S APPENDIX APPENDIX ELECTRICAL PARTS LIST ELECTRICAL PARTS LIST 1 1 Main Parts List Main Parts List 2 2 Folder Parts List Folder Parts List ...

Page 78: ...01 R607 R610 R614 HR156800J000 RES1005 680Ω 5 J 1 R717 R410 R413 R419 R424 R501 R606 HR151201J000 RES1005 1 2KΩ 5 J 2 R503 R507 HR152201J000 RES1005 2 2KΩ 5 J 3 R437 R506 R719 HR153301J000 RES1005 3 3KΩ 5 J 2 R218 R733 R502 R621 R622 R627 R628 R715 R716 R640 R707 R708 R721 R736 R737 R807 R826 R827 HR151802J000 RES1005 18KΩ 5 J 2 R416 R808 HR153302J000 RES1005 33KΩ 5 J 3 R415 R725 R728 R426 R427 R4...

Page 79: ...C162204K53G CAP 1608 2 2uF 10 K X5R 5 6 3V 4 7 9 HC151003ZY5G CAP 100nF 80 20 Z Y5V Y 16V 5 46 CAP 33nF 10 K X7R 7 10V 4 HC152203K54G CAP 220nF 10 K X5R 5 10V 4 HC153302K74G VKCode NAME DESCRIPTION Q TY REFERANCENUMBER HCTP3305M03G TAN_CAP 2212T 33uF 6 3V 1 C505 HCTT1006M03G TAN_CAP 3427T 100uF 20 M 6 3V 3 1 0T 2 C406 C637 HLC53N90S00G CHIP INDUCTOR 1005 3 9nH 0 3nH 2 L607 L608 HLC56N80C00G COIL I...

Page 80: ...ALOG SWITCH 2 U804 U805 HZBRCA2450PA BLUETOOTH ANTENNA 1 ANT801 V401 V402 V403 V404 V40 5 V406 V407 V409 V410 V41 1 V412 V413 V414 V415 V41 6 V417 V418 V701 V702 V70 3 V704 V705 V706 V707 V70 8 HV4815P018VA ARRAY CHIP VARISTOR 4 CHANNEL 1 V408 HXOASE21022A 26MHz BLUETOOTH CLOCK 1 X801 HCT32K768001 32 768KHz X Tal 1 X201 26MHz X Tal 1 X601 HPFK4500SK0C SIDE KEY F PCB 1 S413 HTS00LS10N2T CAMERA KEY ...

Page 81: ... HC151001K78G CAP CERAMIC CHIP 1005 1nF 50V X7R 1 C34 HCT61005MR3G TANTAL CAP 1608 10uF 6 3V M 2 C17 21 HC2G1004M54G 2 CAP ARRAY1uF 10V X5R 2 C5 6 HR150000J000 RES1005 0 ohm 5 2 R1 4 HBF560000000 CHIP FERRITE BEAD 1005 Size 1 L4 HICAAT3157IA IC WHITE LED DIRVER IC 1 U1 HCNF24583400 CON 34PIN Female 1 CON1 HC151004K53G CAP CERAMIC CHIP 1005 1uF 6 3V X5R 1 C6 HC151004K53G CAP CERAMIC CHIP 1005 1uF 6...

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