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LG U250 User's Manual

1. gt VREG BT 2 85V gt VDD_BAT XTAL_IN CT76 lt BT 100 2 2u 100p TCXO X100 C179 C177 C180 C178 DSA321SCE 19 2M NC3 NC2 4 NC1 VREG TCXO 2 85V OUTPUT 1000hm R124 VCC gt VCONT vv TRK_LO_ADJ 19 2MHz dp L L101 102 C437 T NA T NA ET 4 103 k 1801 TE 1 C104 Rev C C439 5 pu DINERS Rev D gd
2. 146 lt 4NPWR lt MOTOR PWR MSMP 2 7 2 2K L MICBIAS EEE 2 ESS SS a aS Se E R Fr CONNECTOR _ gt _ __ _ __ _ 8400 8401 5 1K 400 amp R403 VREG_MSMP_2 7V Dvw CN401 51K HSEJ 18S04 25R 10K 5 4 1 8404 HOOK KEY mre 3 x pa 0400 MIC2N gt MIC2P 3 NCS22008Q2T2G 5 C401 8406 1000hm E 4 402 33u 8407 100ohim 5 _ USB_D USB_D EAR SENSE N 99 8408 T Oo VBAT_SENSE lt lt l O RAO EV B 3 470 PWR ON 5 775 O15 45V PWR OUT IN 85 3 914 28 62 Gi 5 USB VBUS 9 miam m cc Mum D 91 UART
3. ves eem emma enm sermon emma ves enm semen emm Lewes wem seme vem jm sermon emma jen sermo BE wee enm seme wee jm seme wee eno sermo BEE 7 wee jm seme 7 wee jen seme wem jen sermo sermo eno sermo favs BEE vem enm seme ee eno sermo wem emo sermo favs m X100 VCTCXO EXSK0005703 19 2 MHz 1 5 PPM 40 pF SMD 3 2 2 5 0 9 1 5 2 8V 3 2 2 5 0 9 SMD P TP BE X300 X TAL Exxvooo4goi 032708 MHz 20 7 65000 ohm SMD 6 9 1 4 1 3 re SAFDOO ASSY MAIN SMT TOP ASSY MAIN SMT TOP SAFD0087801 ee ee ooo ee ee ooo ee eee Tem ome eee orem eee ve eee emo eremi we pesce emo eremi 172 11 EXP
4. un 1108 22 n lt GSM900 due GSM900 RX2 C117 GSM1800_RX1 Sou 10p GSM1800_RX2 GSM1900 RX1 GSM1900 RX2 WCDMA2100 D5011 CTRL1 ANT SELC CTRL2 ANT SEL1 GSM900 TX GSM18001900 TX PA RAMP la J lt C123 dica 0 01u 33u lt lt GSM NANN R107 0134 0j01u 7 ul o N BE E E lt 5 8 E A S DCS PCS OUT DCS PCS IN 4 EGSM OUT U1 01 EGSM IN RSVD_GND ENABLE SKY77318 BS 87 4 TROUBLE SHOOTING 4 7 3 Checking RF Tx level START Check TP1 If GSM900 over 31dBm f DCS PCS over 284 YES GSM900 DCS PCS Tx is OK Check the other part Check TP2 TP3 If GSM900 over 29dBm f DCS PCS over 25dBm Check the ANT SW Module Check PAM Block OK Refer to chapter 3 5 2 Check the RTR6275 NO Check Soldering of PAM Block If problems still exit replace the PAM NO YES GSM300 DCS PCS Problems resolved Tx is OK NO Change the Board 88 4 TROUBLE SHOOTING 4 7 4 Checking PAM Block TP1 GSM PA RAMP Power Amp Gain Control typically 0 2V Vramp 1 6V TP2 GSM PA EN Power Amp Enable Power ON higher than 1 25V Power OFF lower than 0 4 TP3 GSM PA BAND Power Amp Band Selection Cont
5. 23 3 4 LO generation and distribution circuits 25 7 Circuit Diagram 143 3 5 Off chip RF Components 25 3 6 Digital Baseband DBB MSM6245 6 POD 2 147 3 7 Block Diagram MSM6245 36 3 8 Subsystem MSM6245 37 9 Calibration amp RF Auto Test 3 9 Power 45 Program Hot Kimchi 149 3 10 External memory interface 50 9 1 Configuration of HOT KIMCHI 149 3 11 Sub 52 9 2 How to use HOT 152 3 12 Main Features 68 10 Factory Test Mode 154 4 TROUBLE SHOOTING 73 10 1 Test Program Setting 154 FF COMPONENT en 73 10 2 WCDMA Test 155 4 2 SIGNAL PATH_UMTS 75 10 3 GSM Test 156 4 3 SIGNAL PATH GSM 76 4 4 Checking VC TCXO Block 77 11 EXPLODED VIEW amp 4 5 Checking Front End Module Block 79 REPLACEMENT PART LIST 157 4 6 Checking UMTS Block 81 11 1 EXPLODED 157 4 7 Ch
6. 400 lt L400 A 56nH BUTE AU lt MOTOR PWR D400 RB521S 30 417 4 TROUBLE SHOOTING MOTOR PWR VPWR 118 5 DOWNLOAD 5 DOWNLOAD 5 1 U250 KU250 DOWNLOAD 5 1 1 Introduction LGMDP is a LGE application that allow users to download images from PC to handset LGMDP is a download tool with capabilities to upload image files to the handset LGMDP is designed to be simple to use and easy enough for the beginner to upload executable images to the handset LGMDP supports Windows 2000 XP where the LG Ver 4 6 or later USB modem driver is installed Additionally LGMDP allows multi downloading up to 9 handsets at the same time 5 1 2 Downloading Procedure Connect the phone to your desktop PC using the USB cable and run the LGMDP application Before getting started set up LGMDP preferences from the Preferences of the file menu the way you want Click on the File menu and select Preferences peur Torre Sipe Hi a success sound FF Pla sound Alwin iuri Select Port sten starts Lw J gt Play a success sound It will be played a wav file when the download has been completed To enable this simply check the box gt Always on Top Check if LGMDP always appears at the top of the window so that user can monitor it all the time gt Automati
7. CN400 ICVE21184E150R500FR 9 1 ICVE21184E150R500FR INOUT B1 INOUT A1 EBI2 DATA 0 35 Q LCD RESET N 7 INOUT_B2 INOUT_A2 5 EBI2 DATA 1 Q 34 S LCD IF MODE O INOUT A1 INOUT B1 gt LCD_CS_N INOUT INOUT i EBI2_DATA 2 3 LCD IF MODE 1 5 INOUT A2 INOUT B2 LCD_ADS INOUT_B4 INOUT_A4 EBI2 DATA 3 VSYNC NOUT INOUT_B3 EBI2 WE N 85 31 Q 4 NOUT_A4 INOUT_B4 EBI2 OE N WE 58 FL400 29 ICVE21184E150R500FR O 28 FL401 9 1 27 NOUT B INOUT EBI2 DATA 4 G 26 INOUT_B2 INOUT_A2 i EBI2 DATA 5 25 INOUT B3 INOUT A3 n EBI2 DATA 6 Q 24 INOUT B4 INOUT A4 EBI2 7 28 86 Es 2 21402 0 29 ICVE21184E150R500FR 19 Q 48 INOUT A1 INOUT B1 5 EBI2 DATA 8 17 Q gt NOUT A2 INOUT B2 EBI2 DATA 9 5 INOUT A3 INOUT B3 EBI2 DATA 10 15 INOUT A4 INOUT B4 EBI2 DATA 11 58 1403 e G ole 42 1 Q 498 ICVE21184E150R500FR 9 3 INOUT A1 INOUT B1 EBI2 12 70 5 INOUT A2 INOUT B2 EBI2 DATA 13 G 6 INOUT A3 INOUT B3 EBI2_DATA 14 5 INOUT A4 INOUT B4 EBI2 DATA 15 59 3 Q 1405 lt LCD_MAKER_ID gt gt VREG_LCD_2 8V 5 8 WLED 1 5 WLED 2 5 x 2 S WLED_3 3 i WLED PWR u gt LL 22 T Acc 0 512 Figure 1 23 In
8. D Check the analog switch Can you hear the tone NO The sine wave appears at L401 L402 NO The sine wave appears at R421 R422 NO Change the Main board 107 4 TROUBLE SHOOTING 108 4 TROUBLE SHOOTING 4 17 Headset path MSM6245 C402 C401 R407 R406 401 MMI Connector C D Connect the phone to network equipment and setup call Setup 1KHz tone out and insert headset S Can you hear tone END YES Change the Headset Sine wave appears at R407 R406 Change the Main board 109 4 TROUBLE SHOOTING 406 CN401 C401 C402 C407 110 4 TROUBLE SHOOTING 4 18 Speaker phone path MSM6245 LINE P LINE R429 R427 C423 C422 R431 R426 Audio 0402 Analog Switch U401 Speaker T 2 Connect the phone to network equipment and setup call Setup 1KHz tone out YES Can you hear the tone END Sine wave appears at R429 R427 and C423 C422 And R431 R426 NO Change the Main board J Change the Main board 2 SPK AMP EN is2 6V i YES The sine wave appears at SPK SPK NO Change the Audio Amp Y YES YES The sine wave appears at Chanae s
9. 180 lt 1108 1 Rev C VREG_RF_SMPS gt 19 lt GSM900 5 105 55 ENV_OUT ENV_LNP lt GSM900 RX2 DCS T NA _ 0 5p cto de LNN _ 108 Rev B GSM1800_RX1 cg 190 45 gr OUT B E Hr 10pT roy GSM1800 RX2 S DCS PCS TX C107 HB OUT2 50 z GND1 GSM1900_RX1 s dd TON 54 4 GND2 GSM1900 RX2 gt hep LB RF_OUTI 5 7180 1 GND3 WCDMA2100 LB_RF_OUT2 TX_QN lt TX QM 121 GND4 442 5 6 13 18 i 1K R100 24 7 5 GNDS 05011 CTRLI 25 iK lt lt ANT SELO TX ON gt ON TCXO lt RTR6275 TCXO 1 7 17 GND6 CTRL2 ANT_SEL1 56 5 C114 3300p 20 GND7 i LC116 TX ADJ VCONTROL VTUNE1 2115 21 46 i PCS VTUNE2 23 GND9 GSM900 TX 14 T DAC REF lt lt VTUNE Connected directly to GND GSM18001900 TX i C109 C443 5 6 118 U100 RX IP 33 RX IP 33pT 4 4 12 SBDT RX_IN RX_IM usss apu pe E R103 12K 1 RTR6 a R_BIAS1 275 19 CaaS i BIAS2 QN L405 27nH SSBDT RTR gt gt 104 680 1 120 gt em En 22 PWD DET IN 5 lt PWR D
10. 3 PAD1 4 2 0 2 1 2 2 VDD 0 1 2 3 4 0 PLL VDD DAC RE VDDA1 VDDA2 VDDA3 VDDA4 VDDA5 VDDA6 VDDA7 VDDA8 VDDA9 AF17 DA10 8 5 poll ww oS de sign Name Sheet Sheets E x eee E 2 4 USB D UTXD USB D URXD USB VBUS PWR Checked USIM USB MicroSD TET REMOTE PWR DRAWING UART_TXD 4 M S M R215 2 2K 7 3 NAME AVDD 2 8V sl gt 7 Check DATA PINOUT TP406 2 GG un Approved 1 eeen 2 5G 3G E UART LG Electronics Inc REV_1 0 p s p rz p _____________________________________ LG 42 A 5505 10 01 LG Electronics Inc LGMC U 5 2 lt lt lt SSBDT_RTR 7 6 5 4 3 2 1 4 3 2 1 0 0 1 2 3 4 DATA PS HOLD UART RXD USB SEO USB OE N CAM DATA CAM DATA DATA CAM DATA UART TXD USIM CLK CAM PCLK SSBDT PM KEY COLI KEY COLI KEY COLI KEY COLI KEY ROW KEY ROW KEY ROW KEY R
11. es onver rm ____ MSN up sm 1 3m uet vv caera 1 vm _ 1 Protection 1 Mm sse o 4 34 lavei 1 _ 1 3 onver Bamer ___ 1 Juco et 157 ASS Y NUN COARTING TIMT ACGKONBSCHE ACGH0087SIH nf u mx oj Loud ASS Y_ COARTING O EHE Rn TMT uf OMEN _ E Jose 158 11 EXPLODED VIEW amp REPLACEMENT PART LIST 11 2 Replacement Parts Note This Chapter is used for reference Part order Mechanic component is ordered by SBOM standard on GCSC MCCCOO CAP EARPHONE JACK 0043601 empty Without Color MCCGOO CAP MULTIMEDIA CARD MCCG0007601 COMPLEX empty Without Color MCJK0069301 PC LUPOY SC 10044 Without Color MICEO1 INSERT NUT MICE0000701 COMPLEX Without Color MFBCOO FILTER SPEAKER MFBC0029401 Without Color MFBZOO FILTER MFBZ00
12. PA i Compile date i Delta Star 30 2006 1240446 set date Delia Step 30 2006 17350500 Suet Set Misi 4 i Channel Control Cal Program FI Lact RF Col Due 10 22 10 Band L DO WCbea 1600 L 35H EGZHM 5 0 L GEM FCS ooh COMI GMB addis 1 156 11 EXPLODED VIEW REPLACEMENT PART LIST 11 1 EXPLODED VIEW ruwan 1 e En C 1 1 3 wet um 1 4 Op 1 5 over 1 6 m semer Wis 7 uma tac 1 s ac fa uma 1 m oe mme 1 jemo 11 m mni 1 19 t mmm 1 w ome assy ___ 1 mann Ma seras _ 1 16 mn cec fa wo men 1 Mm 1 Pan 1 mon 9 a Shed cao 1 ver 1 5154 qs 1 zem 1 ea mn 1 5m 1 mer s 11 gun 1
13. 87 SDRAM DATA 3 17 8 Je SDRAM DATA 4 K8 81 i SDRAM_DATA 5 18 pos nca B2 i SDRAM DATA 6 K7 pos nes 819 SDRAM DATA 7 K5 nee i SDRAM DATA 8 K6 SDRAM_DATA 9 97 nes 81 SDRAM DATA 10 J6 neg 95 SDRAM DATA 11 J5 Ncio 4 SDRAM DATA 12 H6 pQ12 M4 i SDRAM_DATA 13 H5 New SDRAM 14 44 SDRAM DATA 15 63 Dais NZ SDRAM 16 G4 Date nets N8 4 SDRAM DATA 17 1 SDRAM DATA 18 1 2 i SDRAM DATA 19 F5 1 3 SDRAM DATA 20 H3 SDRAM DATA 1 pQ21 Nc2o 1 5 SDRAM DATA 22 E6 pQ22 Nc21 19 Y SDRAM_DATA 23 SDRAM DATA 24 F6 pQ24 SDRAM 25 05 na2s pNuo A2 F SDRAM 26 026 29 1 SDRAM DATA 27 D6 DNuz 10 SDRAM 28 08 2 RT SDRAM 29 D7 2 i i SDRAM DATA 30 C8 Dnus 89 SDRAM DATA 31 C7 pnus 819 R314 HET VREG MMC 3 0V 818 i USIM R317 15K 8300 SCHA1A0100 o J300 HSSC 8P 18 GND 5 5 5 1 GND1 vec 5 gt gt VREG USIM 2 85V cp DAT3 cs TF VPP RST 3 USIM_P_RST_N PATS MMC CD USIM P DATA lt eK
14. jenueyy 921A19S Service Manual Table Of Contents 1 INTRODUCTION 5 4 16 Receiver Path 107 NEU 5 4 17 Headset path 109 1 2 Regulatory Information 5 4 18 Speaker phone 111 4 19 Main microphone 113 2 7 4 20 Headset microphone 115 7 2 21 VIDralor nen 117 2 2 Usable environment 8 2 3 Radio Performance 8 S DOO D 113 2 4 Current Consumption 14 5 1 U250 KU250 DOWNLOAD 119 2 5 RSSI BAR 14 5 1 1 Introduction 122 2 6 Battery 15 5 1 2 Downloading Procedure 119 2 7 Sound Pressure Level 16 9 1 3 Troubleshooting Download Errors 129 2 8 Charging eee 16 5 1 4 Caution 4 2 424 193 3 TECHNICAL BRIEF 193 3 1 General Description 17 6 1 GSM amp UMTS RF 134 3 2 GSM MOdE NETTE 19 6 2 Interface Diagram 136 3 3 UMTS Mode
15. mao Bluetoot 1 e h 9 i L i 2 L 3 232 Logic Main board Top Main board Bottom 69 3 TECHNICAL BRIEF SW100 U101 U500 FL101 U100 FL104 U103 X100 Reference Description Reference Description SW100 Ant Switch module FL104 W2100 Duplex Front End module WCDMA U101 GSM PAM X100 VCTCXO FL101 GSM SAW BT module U100 RTR6275 ww 70 3 TECHNICAL BRIEF Logic Audio BAT300 U303 CN403 LL CN401 Tr e MCI 1 0402 Backup Battery CN401 MMI connector 18pin 1 3M Cam LDO CN403 1 3M Cam Connector 71 3 TECHNICAL BRIEF Logic CN400 U300 U201 U301 9300 5300 M 0 E NM MN 27 C su pt 1 k U201 MSM6245_A U300 U301 Memory MCP J300 U SIM socket CN400 Main To LCD Connector S300 T FLASH socket 72 4 TROUBLE SHOOTING 4 TROUBLE SHOOTING 4 1 RF Component BAT 3 aval 00 23 5 2 2 E B H RAIO NASOJ a MT fcn Nizza 5 73 4 TROUBLE SHOOTING Block Diagram Hef Name Part Name Function Comment Block U201 MSM6245 Main Control Main Chipset X300 MC 146 7pF Sleep Clock 32 768 kHz U300 PM6650 2M Power Control Power Supply 0402 NCP2890D MR2G Speaker AMP Common U500 D
16. GPIO 1 BT DATA GPIO20 gt RCV EN N LCD IF MODE 1 EN PA ON 12 xis TX QP 17 2 DAC REF W23 V23 Ves HF W25 Y2 017 a gt H15 D16 F15 D15 A17 H16 gt gt gt TX ON ANT SEL1 ANT SELO D11 H10 F10 ag 42 GSM 2 asd R19 BT TX RX N BT DATA ADJ SR 123 HK O ADJ Figure 1 15 Schematic of RF Interface of MSM6245 52 3 TECHNICAL BRIEF B the others LO ADJ TCXO 19 2M Control WCDMA 2100 TX Power Amp Enable ANT SEL 0 2 Ant Switch Module Mode Selection WCDMA GSM Tx Rx DCS PCS Tx Rx GSM PA BAND GSM DCS PCS Band Selection of Power Amp GSM PA RAMP Power Amp Gain Control of APC IC GSM Power Amp Gain Control Enable of APC_IC ERS 3 TECHNICAL BRIEF 3 11 2 MSM Sub System 3 11 2 1 USIM Interface SIM interface scheme is shown in Figure And there control signals are followed USIM Clock USIM Reset USIM Reset USIM Data USIM Data T Rx VREG UIM USIM CLK USIM CLK USIM Reset PM6650 USIM Reset USIM Data USIM Data Figure 1 16 SIM Interface 3 11 2 2 UART Interface UART signals are connected to MSM GPIO through IO connector with 115200 bps speed GPIO 96 UART_RXD Data_Rx
17. Tx is OK Check other parts 82 4 TROUBLE SHOOTING 4 6 2 Checking UMTS PAM Control Block PAM control signal 1 PWR DET UMTS Tx Power Detected value Check R120 2 UMTS RTR6275 Tx Amp Gain Control 3 TCXO 2 85 UMTS PAM enable C170 about 2 85V 4 VPWR UMTS PAM Main Voltage 3V lt VPWR lt 4 2V 5 PA ON Turns the PA on and off 6 Control signals that step the active PA mode and bias VREG TCXO 2 85 VPWR q W E n _ PWR DET 9777 5 2 LI NL M z t 49 a gt m o s E gn 83 4 TROUBLE SHOOTING 4 6 3 Checking RF Rx Level TP2 TP1 TP2 TP4 ANT101 ANT102 TP1 C450 22p C101 56p 1p L101 C437 NA NA L102 100nH U500 Vbias TP4 CDMA M 7 VDD RX C154 gt 1 5p 0156 a Tem VPWR D gt y 1 i I 100p 4 5 C158 pr 47s 15 L122 C157 nu L404 P NA 1 8
18. 13 cw SEH lt on 6x0 Ina Zr O N Sa TE mm N 2 2 gt Qos 258 5 Figure 1 17 Schematic of USB block MSM6245 Side amp PM6650 Side 55 3 TECHNICAL BRIEF 3 11 3 HKADC House Keeping ADC The MSM6245 device has an on chip 8 bit analog to digital converter which is tended to digitize DC signals corresponding to analog parameters such as battery voltage temperature and RF power levels The MSM6245 device has six analog input pins which are multiplexed to the input of the internal HKADC HAL SEL TOXO default USB XTAL MLIX SEL IM HKADC1 DATA 7 0 HKADC bil HKADCA ADC HKADC STATUS 0 GSM PA REF Me A _ SEL Figure 1 18 MSM6245 HKADC Block diagram HF PAM Temperature Check Battery voltage level HKADC4 PCB_Rev_ADC PCB Version Check HKADC5 Battery THERM Battery Temperature Check Table HKADC channel table 56 3 TECHNICAL BRIEF 3 11 4 Key Pad There are 23 main key buttons in Figure Shows the Keypad circuit Key is connected to PMIC PM6650 Table Key Matrix Mapping Table VREG MSMP 2 7V gt gt KEY ass 82222 8 e r CLR MENU LL LI KEY ROW 0 lt 4 400 401 402 LEFT UP LI II JT LI 1 2 3 tO KEY_ROW 1 lt
19. 5V VDD C R307 lt VPWR m USB OE 5 VREG MSMP 2 7V 5 VSW_sv VREG_MSMP TR R305 E gt gt VREG MSMP 27V USB CTL N USB CTL N SBCK 8 USB VBUS gt 7 USB VBUS VBACKUP 22 19 USB DAT USB DAT SBDT SSBDT_PM USB D T9 USBDP XTAL OUT OR USB SEO 50 USB SEO steep fz USB_D sr U88 D M amp 8 amp XTAL IN 5 GP1_DRV_N MPP7 5 u S E RUM RSTMPP6 USIM P 22225 S 8 MC 146 7pp R309 2 2K lt 0323938332535 8 8 146 ve 029523825 32 768KHz 5095 4 C336 7 alte 1608 1 5 gt gt gt gt gt gt gt gt gt gt gt REV D 8 8 15 2 2 5 8 8 518 8 KYBD BACKLIGHT 5 VPWR PM ON SW USIM MOTOR PWR lt X gt USIM_P_CLK USIM P DATA lt USIM CLK E USIM_DATA VREG USIM 2 85V 5 VREG MMC 3 0V C339 C340 C358 2 2u REV_B al 2 22u 220 Dd ee AE 8 2 Le iud 1305 ESS 8 N NNI 4 7uH 4 5 53 KR VREG SMPS lt lt ENS x i Power Line gt Rout fully cass C436 10434
20. En GND4 RFIN t PGND Rx 2 1 Beno 5 KRX102U H 10102 L CP0402A1950DNTR ON 100 By Figure 1 5 WCDMA PAM Duplexer Coupler 25 3 TECHNICAL BRIEF 3 5 2 VCTCXO X100 DSA321SCE 19 2M The Voltage Controlled Temperature Compensated Crystal Oscillator VCTCXO provides the reference frequency for all RFIC synthesizers as well as clock generation functions within the MSM6245 IC The oscillator frequency is controlled by the MSM6245 IC TRK LO ADJ pulse density modulated signal the same manner as the transmit gain control TX AGC ADJ A two pole RC lowpass filter is recommended on this control line The PM6650 IC controls the handset power up sequence including a special VCTCXO warm up interval before other circuits are turned on This warm up interval as well as other TCXO controller functions is enabled by the MSM TCXO EN The PM6650 IC VREG TCXO regulated output voltage is used to power the VCTCXO and is enabled before most other regulated outputs Any GSM mode power control circuits within the MSM6245 IC require a reference voltage for proper operation and sufficient accuracy Connecting the PM6650 IC REF OUT directly to the MSM6245 IC GSM PWR REF provides this reference This sensitive analog signal n
21. MWAE0024501 COMPLEX COMPLEX empty 10 0 vs Without Color 31 SJMY00 VIBRATOR MOTOR SJMY0007903 3 V 0 85 A 4 8 Height 5 8T Cylinder 3 11000 _ 3 0 2 EGSM DCS PCS W BAND INTERNAL QUAD 2 0 50 3 0 s pepe eme u I Tre mn paeem SNGFOO ANTENNA GSM FIXED SNGF0023102 160 11 EXPLODED VIEW amp REPLACEMENT PART LIST 11 2 Replacement Parts Note This Chapter is used for reference Part order Main com ponent is ordered by SBOM standard on GCSC sz se e _ se cuve amoeno mor orn wmm Helm sumvoo MICROPHONE FPCB 42 dB 4 1 5T Standard Holder SUSYOO SPEAKER SUSY0026801 ae 8 ohm 88 dB mm wire 15mm 18 10 3T BE CAMERA SVCYO014401 m MEGA 1 3M Magnachip 1 4 8x8x5t Socket svovon CAMERA CMOS VGA Socket type MAIN 176 220 1 76 34 46 7 2 5 T 262k TFT TM SVLMOO LCD MODULE SVLM0025001 SAFFO0 POBASSYMAI SMT ASSY MAIN SMT SAFF0117802 17802 PCB ASSY MAIN SMT ANTIO 130 20 dBd Bluetooth SMD 8 02 071 2 SINGLE 2 0 50 3 0 BAT300 BATTERY CELL LITHIUM sBcLoooi701 9 mAh CYLINDER Reflow type BB T 1 67 i 4 8
22. an VDD_SPKR 0 1uF gt 20 gt ME AN lt VPWR s al si sg sl al REV_B a 9 9 amp D o o o 446 3 3p 3p 5 5 5 57 5 S ml al l l oR e l s s s 5 s 5 5 4 E 2 1 4 c aal Seren 9 5 c c dE z lt 3 3 z 8608 ills M M M VLL gt gt PWR ON 8 8 3 Cheek iit is LOW enable 2 2 Ss 1 NS 2 380 1 JESES gt E 63 C322 21 o REF BYP joz 45V PWR gt VCHG E d g REF GND NBL414R F9J ICHARGE gt 3 ISNS_P 49 8303 1216 ss 4 amp 5 55 2 0323 470K R305 ICHARGEOUT 21 SNS M MSM_INT_N alas VBATT 7 VBAT TCXO IN X TCXO 10K BATT FET N g BAT FET N PS HOLD lt PS HOLD 3005 9 5 VREG_MSMA gt gt VREG MSMA 2 6V RESIN N RESET U 300 TCXO EN TCXO EN VREG USB ANA 4VPWR C326 11 E 53 9327 1 USB_ID PM66 50 2M our 51 306 MSM em
23. 10 A18 MSM6245_B VSS_DIG_12 2 DATA 14 02 15 017 F DATA 13 wi 02 14 GP 2 PA pis 55 2 D2 13 GP 1 PA RAN gt gt PA VSSA3 EBI2_DATA 12 12 919 EBI2 DATA 11 lt H15 P26 AA21 EBI2 DATA 10 02 11 TRST_N ois 55 5 NC 5 6280 Reference Rev B 21 gt DATA 9 ws D2 10 eis vac VSSAG E AC23 VSS DIG EBI2_DATA 8 Aag 2 9 TMS 5i wie VSSA7 VSS39 D2_8 I VSSA8 VSS41 1 EBI2 DATA 7 D2 7 47 WI8 w18 Analog VSS guard ring for CODEC vssag EBI2 DATA 6 H W26 VSSA10 o D2 6 EBI2 DATA 5 AAT AB26 Sait vssas AEBS DATA 4 DATA AES 4 AUX PCM GRFC14 79 SPK ACIS vSSA12 vssas 25 NAND amp LCD EB DATAS D2_3 AUX_PCM_DIN_GRFC13_GPIO14 VSSA13 VSS47 D2 2 PCM DOUT GRFC12 GPIO103 VSSA14 VSS48 3 J8 AF23 AF25 D2 1 PCM SYNC GRFC11 GPIO102 55 15 VSS49 12 020 TX ON GRFC10 gt TX VSSA16 VSS50 B4 EBI2_DATA 1 AF3 EBI2_DATA 0 VSS5 VSS6 VSS7 vss9 VSS10 VSS11 VSS12 due VSS13 VSS14 V
24. GPIO_95 UART TXD Data Tx Table UART Interface 54 3 TECHNICAL BRIEF 3 11 2 3 USB The MSM6245 device contains a Universal Serial Bus USB interface to provide an efficient interconnect between the mobile phone and a personal computer PC The USB interface of the MSM6245 was designed to comply with the definition of a peripheral as specified in USB Specification Revision 1 1 Therefore by definition the USB interface is also compliant as a peripheral with the USB opecification Revision 2 0 The USB Specification Revision 1 1 defines two speeds of operation namely low speed 1 5 Mbps and full speed 12 Mbps both of which are supported by the MSM6245 USB_DAT Data to from MSM USB SEO Data to from MSM Table USB Signal Interface MMC DATA SDCC DATO 2 5 5 9 9 5 ss ol 2 5V d 13 USB OE USB OE N 2 AI 14 2 nre gt 2 5 a 15 VSW_5V Lan 588 555 USB USB N N 16 CC CC C mom lt lt lt lt lt lt ooo 222 555 3555 555 555 UART2_CTS USB_VBUS gt 1 17 98 USB DAT QC USB DAT USB 2 TT 098 0 USB SEO C 20 USB SEO USB D 211 USB D M GP1 DRV N R309 2 2K NV 27 70 2 lt za lt I
25. 1408 1410 R118 d U102 A Ton 4 7nH 2 2p FEED NC2 L CP0402A1950DNTR 1 1126 0 103 a 0 NM ee re Sak esent DU s er NA lt 8 lt VREG_TCXO_2 85V M100 _ 192 LBRQ 2B43A qe T C171 1000 9 4 REF lt SBST lt lt BT_SBST SBCK BT SBCK TERT 3 voc our spot 12 SBDT 173 221 2 5 1128 C174 VDD INT SYNC DET TX EN TX RX 1 8nH 10p R123 10 13 VREG 5 27V gt VDD_MSM DATA E C185 100p cise C187 1000p C188 0 01u 4 RTR6275 TCXO lt lt gt gt gt DRAWING H F TC7SHO4FU 9 DRAWING LG Electronics Inc Ux REV 1 2 C o LG 42 A 5505 10 01 LG Electronics Inc LGMC C181 0 1u Sheet Sheets O01u m lt lt VREG_BT_2 85V 143 7 CIRCUIT DIAGRAM ADC HKADC 4 PCB Rev MODE2 MODE1 MODEO Default Pull Down 0 0 0 Native ARM JTAG HKADCIO OUT 150K 10K 0 016V HKADC 1 SENSE 150K 47K 0 62 SZ Et Rc min EEE EL EL ER En Noe HKADC 2 HDET1 150K 68K 0 81V MSMP 2 7V HKADC S ADC DET 150K 100K 1 04V MSMP 2 7V MSMP 2 7 HKADC 4 Rev 150K 15
26. Full SF range support from 4 to 256 SMS CS and PS PS data rate 384 kbps DL 384 kbps UL CS data rate 64 kbps DL 64 kbps UL AMR all rates 2537 3 TECHNICAL BRIEF 3 8 3 GSM features The following GSM modes and data rates are supported by the MSM6245 device hardware Support modes conform to release 99 specifications of the sub feature Voice features FR EFR AMR 1 5 5 2 and A5 3 ciphering Circuit switched data features 9 6k 14 4k Fax Transparent and non transparent modes for CS data and fax No sub rates are supported 3 8 4 GPRS features Packet switched data GPRS DTM Simple Class A operation 1 Multi slot class 12 data services CS schemes CS1 CS2 CS3 and CS4 GEA1 GEA2 and GEAG ciphering Maximum of four Rx timeslots per frame 3 8 5 EDGE features EDGE 22 power class for 8 PSK DIM simple Class A multi slot class 12 Downlink coding schemes CS 1 4 MCS 1 9 Uplink coding schemes CS 1 4 MCS 1 9 BEP reporting SRB loopback and test mode B 8 bit 11 bit RACH PBCCH support 1 phase 2 phase access procedures Link adaptation and IR NACC extended UL TBF 38 3 TECHNICAL BRIEF 3 8 6 MSM6245 device audio processing features Integrated wideband stereo CODEC L1 16 bit DAC with typical 88 dB dynamic range Supports sampling rates up to 48 k
27. Test Point of the VC TCXO Block 77 4 TROUBLE SHOOTING Check of TCXO Check 10 5 2 gt Voltage gt YES Check 4 With Oscilloscope NO 2 gt Voltage gt 1 YES CXO is OK Check other part 78 Check C312 of PMIC U300 Check R213 of MSM U201 Check soldering and components 4 TROUBLE SHOOTING 4 5 Checking Front End Module Block Rev C ENS NM MN ccc 2c Rev D DE eee aes ek ee a 1 L108 1 E VREG SMPS2 gt NY lt 2 eg GSM900_RX2 Rev B i C117 GSM1800 RX1 c PIE 10p 7 GSM1800_RX2 GND1 05 1900 RX1 7 10 8 02 GSM1900 RX2 GND3 WCDMA2100 13 1K R100 7 GND6 CTRL2 ANT SEL1 20 51 GND9 GSM900 TX 1 2 m GND10 GSM18001900 TX C110_L C109 ul Schematic of the Front End Module Block 1 ANT SELO ANT SELI De ANTE Test Point of the Front End Module Block 79 4 TROUBLE SHOOTING Logic Table of the FEM ANT SELO ANT SEL1 GSM 1800 GSM1900 RX LOW LOW GSM 900 RX GSM 900 TX WCDMA GSM 1800 GSM 1900 TX Check Soldering of ANT SELO 1 High Level NO Check VCC 18 lt Voltage lt 3 0V TP1 VREG RF SMPS YES Check the Logic in each mo de 80 4 TROUBLE SHOOTING 4 6 Checking UMTS Block 4 6 1 Checking
28. 2 2 a 58 58 ofe FL406 1407 los ICVE21184E150R500FR Bishts 1 9 Q CAM DATA 6 5 INOUT A1 INOUT B1 CAM DATA OUT 6 E CAM DATA 7 2 INOUT B2 gt CAM DATA 7 REV_B EDTY0008606 gt EDTY0008601 CAM_VSYNC INOUT A3 INOUT B3 7 CAM_VSYNC_OUT CAM_HSYNC INOUT_A4 INOUT_B4 CAM_HSYNC_OUT Audio AMP 58 FL408 NCP2890DMR2 AMP EN gt SD OUTB gt gt SPK R426 VT_CAMERA_CONNECTOR REV C 20K gt 3K BYPASSUAO2 VGA CAM RESET N Far C422 R4285 6K 20K VREG CAM AVDD 2 8V lt lt 3 Er EN V MK ca23 S drm x R4305 6K 2L 8 8 ir ieri Du nidi C428 lt 1u oo a5 RU la Er 5 SOR C425 DVDD 1 5V 4 ke 2 em t 10431 10u COMMON CAM MCLK P2 TNA 55 10 CN404 P15 Tm ES CAM PCLK lt 5 P14 CAM HSYNC OUT CAM_DATA_OUT 0 gt P5 SH CAM_VSYNC_OUT P12 Ht DATA 7 P11 CAM_DATA_OUT 6 GND2 o 88 3 66 col o o o N TS T 9 L401 100nH RCVN CAM_DATA_OUT 1 6 CAM DATA OUT 2 L402 100nH DATA OUT 3 SPK_RCV gt 0 CAM DATA OUT 4 CAM DATA OUT 5 REV For Antenna Radiation LG 42 A 5505 10 01
29. 26000kHz 77dB 19dB 21dB 22dB 600kHz 24dB 1200kHz 21dB 24dB 27dB gt gt Q Q Q E N N e e N 9 2 PERFORMANCE DCS amp PCS offset 800kHz Intermodulation product should Intermodulation attenuation be Less than 55dB below the level of Wanted signal Transmitter Output Power 9 Burst timing Mask IN Mask IN 10 2 PERFORMANCE 2 Transmitter WCDMA Mode v o Om __ Class 3 24481017348 cmd 1dB 2dB 3dB 1 40 5 1 5 41 3 1 5 4 5 4 Inner Loop Power control in uplink 0 0 5 0 5 0 5 0 5 0 5 0 5 1 Qin Qout PCCH quality levels Out of synchronization handling of output power Toff DPCCH lor 22 gt 28dB Ton DPCCHllor 24 gt 18dB Transmit OFF Power 56dBm 3 84MHz 25us PRACH CPCH uplinlk compressed mode 25us Power varies according to the data rate Change of TFC DTX DPCH off minimize interference between UE Power setting in uplink compressed 14slots transmission gap Occupied Bandwidth OBW 5MHz 9996 Transmit ON OFF Time Mask 35 15 Af 2 5 dBc Af 2 5 3 5MHz 30k 35 1 Af 3 5 dBc Af 3 5 7 5MHz 1M 12 Spectrum emission Mask 39 10 Af 7 5 dBc Af 7 5 8 5MHz 1M 49dBc Af 8 5 12 5MHz 1M 11 2 PERFORMANCE Specification 33dB e 5MHz ACP gt 50dBm Adjacent Channel Leakage Ratio ACLR 43dB 10MHz ACP gt 50dBm 36dBm f
30. Maintain user data including WAP AD DRM E mail Play lists and images when downloading a new S W images User data stated above are maintained if this option is selected 5 Additional Options Display Information is defaultly not selected and user cannot choose Override partition table is also also defaultly not selected and user cannot choose 6 Clear Clearing all directory paths of images in the dialog 7 Start Starting downloading the selected individual image 121 5 DOWNLOAD 5 1 2 2 Choosing image files Select the image folder where all the image files are located by clicking on the Browse The folder name shall be different from that of the folder name in the snapshot The folder name indicates the path where the image files are located 0250 0250 5 Falder 0511 xl n E HL D zm ER Partition Table heise Tor Folder E X select Folder nombsining al For deari E TE TEIG wous o gsiiwagcsblhd cfadata mbn xl Header QCSEL M wa DSilWuesbmbEn OEMSBL Header EWEWIMGHuomsWVO9D_OS11WoemsbIhd mbn OEMSEL I DSilWoemshhmin 0 AMSS Modem Image Header EWEWIMGWusmusWv09D D51iWamsshdmbn O AMSS Modern Image m EWEWIG swam mon Media Image Iv re
31. R E 8 22 T10u 1000p S Draw the Artwork line thickly amp e o 15 gt gt USB_VBUS FLASH_DRV_N KPD_DRV_N KEY ON SW MOT PWR F i 208 LM MM 2525 LCD LDO Y Y Artwork gt Place resistor and capacitor close to PM6650 0302 111402810 gt VPWR VDD VOUT VREG LCD 2 8V S 2 _Lcsas 3 LCD LDO EN gt CE GND2 8 0346 gt 0303 RT9011 MGPQW ICHARGEOUT 1 8 4VPWR VOUTI 7 VREG CAM AVDD 2 8V R313 CAM LDO EN 1 VREG CAM DVDD 1 8V VPWR lt lt lt USB VBUS 2 0 1 1 C347 8 GND C348 C349 S o 1u 58 9300 QST4 VBATT lt lt 5 gt N REP di 1 5 lt 5 VPWR VOUT gt VREG CAM DVDD 1 5V GND BGND 7 lt 5V_PWR 100 EN gt STBY NC HP i 9501 ee 0302 c47 BH15LB1WHFV lu QST4 REV D 4 1 2 gt ICHARGE Differential lines route as equal length as possible gt ICHARGE ICHARGEOUT 87 a a e 2 i VPWR p IN cu 19 REV_B _LC354 LC355 Section Date Sign amp Name Sheet C1 ve op Sheets wap or lows U250 KU250 Tu
32. ag F26 16 a 5 SBDT1 GPIO1 SDRAM DATA Ra 55 SDRAM_DATA 23 wa 1 15 x 545 PA_ONI_GPIO2 ds C231 SDRAM 22 ve 74 z GRFC9 GPIO12 25 Cool HK REF SDRAM DATAT va SP 10 73 CAMCLK GP MN GPIO13 55 CAM MCLK P SDRAM_DATAI20 GPIO 72 GPIO28 5 LCD_IF_MODE_0 SDRAM 9210 71 USB RX DATA GPIO29 rs C232 C233 C234 C235 C236 C237 C238 C239 C240 C242 2 70 2 CS 2 r VGA CAM RESET 1000p 1000p T 1000p T 1000p 0 01u 1000p T 1000p 1000p SDRAM DATA 7 va 5210 69 2 CS GPIO36 GPIO 68 LCD EN GPIO37 LCD LDO EN 4 4 Near to B18 VDD_PLL SDRAM 16 06 Ro RE OLE QS RC ND d SDRAM DATA 15 L6 GPIO 67 GPIO43 B6 LCD RESET S VREG 2 6V SDRAMIDATA I4 rs 015 SYNTH2 GPlO65 22 HOOK KEY SDRAM DATA 13 SDRAMI 014 GPIO66 SDRAM SDRAM DATA 12 SDRAMI D13 XMEM1_CS_N1_GPIO76 R211 SDRAM 012 XMEM1_CS_N3_SDRAM1_CS_N1_GPIO77 Hz SDRAM DATA T0 5g SDRAMI 011 UART3_RFR_N_GPIO87 0 SDRAM DATA SDRAM1_D10 UART2 DP DATA GPIO89 EN r C243 C244 541 SDRAM1_D9 SYNTHO_GP_PDMO_GPIO92 Close to MSM 2 SDRAM1_D8 SBST1_GPIO93 LCD_IF_MODE_1 eges als xi 2 ual
33. 10 00 O O ung 22220 0020 2 gt 3 Nero N csi z mc zagoru azazzazazzuanau i ET sh am uhu cci mum em 7272 2 7772722 5 SDRAM DATA 0 31 lt lt h 65655 2 55040 z5 86959222224 8 lt 2502 200555555 ps 2255558 s le 5 io SAS IGG 119 2 4 6553 o F25 REV B SDRAM_DATA 31 amp 5 Raak ues 23355 SDCC_DAT1_GPIO99 B i 22 lt 5 lt lt lt lt E 098 SDCC DAT2 GPIO100 Change 32 bit SDRAM DATA 30 T6 209 M26 SDRAM DATA 29 21 lt 900 X Sozi SDCC_DAT3_GPIO101 SDRAM DATAGS Fal 4120 49222525522 MDP_VSYNC_SECONDA_GPIO104 5 lt lt LCD ID C222 C223 C225 C226 C227 C228 C229 C230 SDRAM DATAG7 41 19 gees MDP_VSYNC_PRIMARY_GPIO105 LCD VSYNC 1000p T 1000p 0 01u 0 01u T 0 01u 0 01u 0 1uF 2200p cap gt place between A1_18 22 3995 60 en SDRAM DATA 26 g x 2 4 wiog SBCK1 825 a 7200 WDOG monitoring D12 VDDA1 and F12 DAC_REF SDRAM_DATA 25 R6
34. AMR NB Recording performance 15 fps QCIF 192 kbps CMX MIDI and still image animation text LED vibrate support 72 simultaneous polyphonic tones 44 kHz sampling rate 512 kB wave table Support of universal file formats Standard MIDI Format SMF SP MIDI SMAF Audio playback 2 MA 3 MA 5 XMF OLS requires Docomo license 40 3 TECHNICAL BRIEF PNG decoder Pitch bend range support LED vibrate support Scalable Vector Graphics SVG Tiny 1 1 SVG Tiny 1 2 MLZ decoder B integrated PNG SAF A T Tri band WCDMA Quad band GSM GPRS EDGE WEDGE DTM Processor 926 EJ S 225 MHz AHB 75 MHz 926 5 122 MHz AHB 61 MHz for limited MM QDSP 100 MHz Process technology Supported RF platforms see Table 1 2 Platform B RTR6275 RFR6275 TOF Platform RTR6275 RFR6275 Platform F RTR6285 Mi Qcamera camera interface Up to 2 0M pixel support Audio video decoders MP3 AAC ADPCM MPEGA H 263 H 264 Real networks Windows media WB AMR Qvideophone video telephony 15 fps amp QCIF LCD HW Interface 18 bpp Table 1 1 Summary of MSM6245 device features Note 1 At this time only 32 bit SDRAM is supported on the MSM6245 device There are potential MIPS issues when running Bluetooth and video telephony concurrently with any other memory configuration 16
35. Check the pin and battery Connect terminals of I O connector Connection OK Change I O connector Change TA or USB Cable Is the TA or USB Cable voltage 5 1V or 5 0V Yes Is it charging properly After turning on Q301 or Q302 Q302 Change the board Charger Troubleshooting Flow 97 4 TROUBLE SHOOTING Q302 R313 Q301 Charging part Main PCB Front 98 4 TROUBLE SHOOTING 4 BB Trouble Shooting 4 11 USB Troubleshooting USB Initial sequence of U250 KU250 is USB connected to U250 KU250 power on gt USB VBUS Q300 go to 5V gt USB go to 3 3V gt USB DAT is triggered USB work c Go to power on trouble shooting YES Cable is inserted Insert cable B YES Q400 pin 4 is 5V Check Q300 pin 4 YES NO YES Change the Main board 99 4 TROUBLE SHOOTING 4 12 SIM Detect Troubleshooting USIM Initial sequence of U250 KU250 is USIM CLK USIM RST USIM DATA triggered VREG 2 85 go to 2 8 USIM IF work 1 U Start Re insert the SIM card um End 5 NO VREG UIM 2 85V is 2 85V USIM P CLK is run Check J300 Change SIM Y Yes 5 Change the Main board 100 4 TROUBLE SHOOTING VREG USIM 2 85V USIM P RST N USIM P CLK US
36. EUSY0300501 Transceiver 8X8X0 9 2 ENSY0013501 62 QFN 56 PIN R TP chartered GSM WCDMA Single EUSY0300502 Transceiver 8X8X0 9 IC Tx Rx SMPY0014001 35 5 56 dBc dB 6x6x1 15 SMD Tri Band E 18 dB 25 dB 33 dB 1 0 0 58 0 35 SMD 1920M 1980M Pb Free empty R TP 28 dBm 40 96 465 mA 44 dBc 26 5 dB 4x4x1 1 nemus DE IC EUSY0232812 SON1612 6 6 2 8 150mA LDO BEEN EUSY0319001 ane 8 PIN R TP 300mA 300mA 2 8V 1 8V Dual TSOPJW 12 12 PIN R TP SPORT Charge Pump AAT2154 Low cost version COUPLER RF DIRECTIONAL SCDY0003403 EUSYO238702 SC70 5 PIN R TP Comparator pin compatible to EUSYOO77701 EUSYO300101 WQFN 10 PIN R TP Small package Dual SPDT analog Switch PB Free EUSY0176401 MICRO8 8 PIN R TP 1W AUDIO AMPLIFIER 900 1800 1900 2100 dB dB dB dB ETC 1800GSM EUSY0250501 SFAY0007402 Quad WCDMA2100 FEM 5 4X4 0X1 2 Improved D5006 HVSOFS 5 PIN R TP 150mA CMOS LDO WITH EUSYO223001 OUTPUT CONTROL 1 5V 5 0004001 18 V 3pF 1005 C C AM AM C C C C C C C C C C C 5 0004201 114 V SMD 120pF 1005 171 11 EXPLODED VIEW REPLACEMENT PART LIST wem ss em
37. GND ENABLE lt lt GSM T SKY77318 1 2453 zd amp P BS B EFCH897MTDB1 Q QOoooonoonoooon pug 2222220222 2000500500505 08 R117 1000hm gu PA BAND Top LOW xL 1 Figure 1 8 GSM PAM Schematic 30 3 TECHNICAL BRIEF 3 5 6 UMTS Duplexer FL104 ACMD 7602 A UMTS duplexer splits a single operating band into receive and transmit paths Important performance requirements include Insertion loss this component is also in the receive and transmit paths In the U250 KU250 typical losses UMTS2100 Tx 1 2 dB UMTS2100 Rx 1 4 dB Out of band rejection or attenuation the duplexer provides input selectivity for the receiver output filtering for the transmitter and isolation between the two Rejection levels for both paths are specified over a number of frequency ranges Two Tx to Rx isolation levels are critical to receiver performance Rx band isolation the transmitter is specified for out of band noise falling into the Rx band This noise leaks from the transmit path into the receive path and must be limited to avoid degrading receiver sensitivity The required Rx band isolation depends on the PA out of band noise levels and losses between the PA and LNA Minimum duplexer Rx band isolation value is about 51 dB x band isolation the transmit channel power also leaks into the receiver In this case the leakag
38. REF GND DH 4 Regulation xm Super VEW EV OT Dem ovens FI V Ill Charger 2 conma ES vor Core Buck im rp psu pim Ander voit MEME Ir Lockout x my Regu J REG EA Buck E PAD vREO Regular da EE p cnram VBAT n eS Ay LE r1 WE KUNA 5 mE de Pi imr 1 Los La rI LE NN RE AN E O VREG AMLIX 61 D AMUN INZ D m vREG RFTX TCXO EN p WLAN D VREG_INLAN TCXD RF vREG RFRXZ TCXO CSLIFWR MPP m al z ka 85 8 8 O Was DIM a uas D LI RU MIPPRI RUM CLK MPP io JO MFP AZ RM RST M CLE PPS RUIML JO E GNO D Figure1 7 PM6650 Block Diagram 29 3 TECHNICAL BRIEF 3 5 5 GSM PAM U101 SKY77318 The SKY77318 is an extremely small 6 x 6 mm GSM PAM for handset appl
39. _ pomeerono _ 30 V 1 A R TP VF 1 5V IF 200mA m D402 DIODE TVS EDTY0008610 SOD 523 5 V 250 W R TP PB FREE D403 DIODE TVS EDTY0008601 SOD 323 6 400 W R TP PB FREE D404 DIODE TVS EDTY0008601 SOD 323 6 400 W R TP PB FREE 897 5 MHz 1 4 1 1 0 6 SMD Pb FL101 FILTER SAW SFSY0030201 free SAW GSM900 Tx FL102 FILTER SAW SFSY0031101 20103 FILTER SAW SFSY0031201 dB 3 0 2 5 1 2 SMD FBAR WCDMA duplexer 2140 SDMY0001301 44 1950 53 2 0 1 6 3 0X2 5X1 2 DUAL SMD R TP SFEY0007103 4 V SMD R Varistor Array 50Ohm 15pF SFEY0007103 Ro V SMD R Varistor Array 500hm 15pF SFEY0007103 p V SMD R Varistor Array 500hm 15pF SFEY0007103 V SMD R Varistor Array 500hm 15pF 21404 FILTER EMI POWER 5 0006001 1950 MHz 1 4 1 1 0 62 SMD RF Filter for WCDMA 2Ghz 1950 1 4 1 1 0 62 SMD P TR 2140 MHz 1 4 1 1 0 62 SMD 2110M 2170M IL 2 0 50 100 10 WCDMA BAND Rx 2140 1 4 1 1 0 62 SMD R TP 1950 MHz 2140 1 6 dB 2 0 dB 53 dB 44 167 11 EXPLODED VIEW REPLACEMENT PART LIST Er e Tome _____ s ros rurenemrower srevoories V SMD Ach R Varistor Array 50Ohm 15pF s rurenemrower srevoories s V SMD 4ch R Varistor Array 500hm 15pF s V SMD R V
40. gt gt 5 V L120 DCS PCS OUT DCS PCS IN 7 5dB VV X VREG SMPS 4 5 5 47nH 11 4 G3 R112 i 5 A m EGSM OUT 101 EGsM IN lt 95 i 113 100 35 Old 19 ENABLE 18 lt GSM EN 2 i ih i i 2 SKY77318 i 0149 d an F P GND BS 15p EFCH897MTDB1 OR P s PPP P RHE 8858888858 MSMP 27V ESF FF FF P 550000000 R117 1000hm _100 GSM PA BAND 1 L C158 PA BAND 1000pT 22pT 0 01u GSM EDGE WCDMA nea 1 isi VDD 20 1 3 Rev D 1 5 _ C156 d P m T VPWR gt m VPWR di 100 1nH F 4 5 tL 155 C158 1 6159 gra 4 7u 15p T15p 1122 C157 wwe pie NA 1829 Leon WS2512 TRIG U103 adis 10 1 Rev D Rev D VCC2 p A4 104 1123 9 anna REIN 2 L 09 on 2 4 PGND RX 1 Rev 1 0 Tap 2 3 ANT T 2 eue 2222 mrour 3 aaa 33 ACMD 7602 GND3 VCONT PA RO ew aoe J BLUETOOTH 05 T 0 5 Tip BGND VREF i SFO cas 1411 T 925 Na ot 4 7nH SNGF 0026001 TR100 2 s ACS2450HBAXX KRX102U e cnr 445
41. lt 5 rs T Y gt 403 404 405 OK RIGHT LI EL EI 1 I KEY ROW 2 T les gQ 406 407 408 SND SEARCH az LL Kerr Lo LI 7 TO 8 9 O KEY_ROW 3 lt lt T 2 x T HOT400 409 HOT401 DN BACK I JE I I KEY_ROW 4 Ee Y S PT 9 q KEY_COL 0 2 3 4 Figure 1 19 Main Keypad Circuit END SW END Figure 1 20 END Keypad Circuit 57 3 TECHNICAL BRI 3 11 5 Camera Inte EF rface U250 KU250 Installed a 1 3M Pixel and 0 3Mega Camera Below figure shows the camera socket type connector and camera I F CAMERA signal MEGA CAMERA CONNECTOR T ON CO st 10 OR 22222222 sooo om msc 22 CAM DATA 0 0 23 DO PCLK CAM DATA OUT 1 24 D1 VSYNC DATA OUT 2 1 02 HSYNC CAM DATA OUT 3 2 D3 STANDBY CAM DATA OUT 4 3 D4 SCK DATA OUT 5 4105 SDA CAM DATA OUT 6 5 D6 RESETB DATA OUT 7 D7 MCLK BB SA R437 20 22222 00000 lt lt 8 e 7 1 Ia 5 Pill gt lt lt 1 o i ICVE21184E150R500FR ICVE21184E150R500FR 1 9 1 9 CAM gt INOUT B1 H CAM DATA OUT 0 CAM DATA 3 INOUT INOUT B1 CAM DATA 1 INOUT A2 INOUT 2 CAM DATA OUT 1 CAM DATA 4 INOUT
42. nv items and user data in the EFS area 133 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM 6 1 GSM amp UMTS RF Block gt Bluetooth BT RF MODULE BT SBST CK DT BT SBST CK DT SYNC DET TX EN RX BB TX BB y ERE P VCTCXO TCXO EN 19 2MHz Buck Converter Uuumnmuumuuum TRK LO ADJ WCDMA WMIX_INM PM_SBDT WMIXINP V MSM6245 WCDMA2 PLL1 100 CDMA Duplexer Coupier WCDMA Coupler HB RF OUT1 SAW VCONTROL C PWD_DET_IN e RE RODS ed END MODULE TX AGC ADJ I es t c N u E 4 EGSM EGSM INN r DCS INP E 42 10 DCS INN 8 GPCS_INP DAC_REF NERO DAC REF GPCS INN a Fig 2 1 U250 KU250 RF Functional Block Diagram 134 6 BLOCK DIAGRAM DSASSCE 192M Fem Frontend modue _ Table 2 1 RF Block Component 135 6 BLOCK DIAGRAM 6 2 Interface Diagram 6 2 1 RTR6275 amp MSM6245 Interface Diagram N Bluetooth PM6650 2M GSM GSM900 Tx TX SAW GSM1800 1900 Tx GSM900 Rx GSM1800 Rx GSM1900 Rx T RR _____ MSM6245 MAIN LCD 1 3M CAMERA VGA CAMERA NAND SDRAM FLASH SD I F KEYPAD AntSW Logic Fig 2 2 RTR6275 amp
43. 1 KEY COL 2 KEY COL 3 KEY COL 4 Section Date sian name Sheet U250 KU250 Designer MAR 07 2007 Jaykay MODEL DRAWING KEY MMI did BENE i dii ibid DRAWING LG Electronics Inc REV 1 2 NO LG Electronics Inc LGMC 8 PCB LAYOUT 404 147 E Isa sir ORO O HOT400 Zee U250 KU250 MAIN SPFYO147601 1 8 PCB LAYOUT FEE IE COR 27 1171 220 C318 319037110378 EEO Of m Yay AAEE lk a x E 122 ITA Fuel 8089 DIDIT s e x a De 2 LGMC 148 U250 KU250 MAIN SPFY0147601 1 2 BTM 9 Calibration amp RF Auto Test Program Hot Kimchi 9 Calibration amp RF Auto Test Program Hot Kimchi 9 1 Configuration of HOT KIMCHI 9 1 1 Configuration of directory LG CL 009 PwrSupply Cmd xml EE Directory 1 h 9 Calibration 8 RF Auto Test Program Hot Kimchi Debug m ComLMPLib 11 41 EzLooksMQ 004 GuiTk115d dll SBCmd xml ShieldBox DIID dll o LG Rf Test E5515C 211 dll AutoSetup 110 xml QMSL MSVCe6R dll Cal Setup Test xml LG RfCal Q3G6280N Polar 006 dll Procedure KU250 103 xml script auto 001 xml Director script 003 xml Pu Spec 0
44. 3 58V Low battery alarm interval Idle 3 min Dedicated 1min e Cut off voltage 3 20V 49 3 TECHNICAL BRIEF 3 10 External memory interface The MSM6245 device was designed to provide two distinct memory interfaces was targeted for supporting high speed synchronous memory devices EBI2 was targeted towards supporting slower asynchronous devices such as LCD NAND flash SDRAM etc EBI1 Features 16 bit static and dynamic memory interface 32 bit dynamic memory interface 24 bits of address for static memory devices which can support up to 32MBytes on each chip select Synchronous burst memories supported burst NOR burst PSRAM Synchronous DRAM memories supported Byte addressable memory supporting 8 bit 16 bit and 32 bit accesses Pseudo SRAM PSRAM memory support EBI2 Features Support for asynchronous FLASH and SRAM 16bit 8bit Interface support for byte addressable 16bit devices UB N amp LB N signals Support for 8 bit 16bit wide NAND flash Support for parallel LCD interfaces port mapped of memory mapped 18 or 16 bit 512Mb NAND 8bit flash memory 512Mb SDRAM 32bit Interface Spec Devi Read Access Time Write Access Time SDRAM 7 ns T s Table 1 External memory interface 50 3 TECHNICAL BRIEF EBI2 ADDRESS 14 0 DATA 31 0 ANAND NAND_RE mars NA
45. 4 14 Keypad Backlight Troubleshooting Key Pad Back Light is on as below Key pressing gt KYBD BACKLIGHT go to gt MAIN Key Backlight LED On Check battery Change the Main board YES Backlight LED ON END D Change the Main board LD402 LEBB S14H AA eH 1000hm LD403 LEBB S14H gt 1000hm LD4 LEBB S14H AX gt R417 REV EDLH0013501 gt EDLH0006001 LD405 LEBB S14H R413 1000h 10408 8416 1000h R419 1000h LD404 8415 EE 1000hm gt AA 8418 100 KYBD BACKLIGHT gt Figure Keypad backlight LED part 105 4 TROUBLE SHOOTING 4 15 Main LCD Troubleshooting Main LCD control signals are generated by MSM6245 The signal path is MSM6245 400 LCD Module C Start be Press END key Key LED is GO to power on trouble shooting Y Yes Disconnect and reconnect The LCD connector Yes Nw Y No Change the LCD module Yes LCD display OK END Change the Main board 106 4 TROUBLE SHOOTING 4 16 Receiver Path MSM6245 EAR1ON EAR10OP R421 R422 Analog Switch U401 Receiver c 2 77 Connect the phone to network Equipment and setup call Setup 1KHz tone out 27
46. 6650 Input Power 3 Charging current blue flows Tricia Charger Management from the external supply 4 Total current is set by the current LP 79 1 regulation loop as described earlier THLE amp 5 Battery voltage is routed to MSM MSM measures VBAT 5 Constant current charging is finished when the battery reaches its target voltage 4 2V 3 82V 3 81V 3 74V 3 73V 3 69V 3 68V 3 59V 3 58V 3 20V 100 70 69 45 44 20 19 3 2 0 Figure 1 13 U250 KU250 Battery Bar Display Stand By Condition 47 3 TECHNICAL BRIEF Trickle Charging Trickle Charging of the main battery enabled through SBI control and powered from is provided by the PM6650 IC The trickle charger is on chip programmable current source that supplies current from Vo to pin VBAT Trickle charging can be used for lithium ion and nickelbased batteries with its performance specified below 3 2V The charging current is set to 80mA 1 Pass transistor not shown is turned ON E SNS 0 1 Auto Trickle Charge feature Under voit M gt Battery Input Power Trickle Charger Management a al ET Detectors HLVE trickle charging auto started Special algorithm followed 3 On chip programmable If VBAT gt current source runs off VDD Wh
47. A2 INOUT B2 CAM 2 1 INOUT A3 INOUT B3 5 DATA OUT 2 CAM DATA 5 i INOUT A3 INOUT B3 E A4 INOUT B4 INOUT A4 INOUT B4 T w FL406 FL407 ICVE21184E150R500FR UNSEREM CAM DATA 6 5 NOUT_A1 INOUT CAM DATA OUT 6 CAM 7 2 INOUT B2 7 DATA OUT 7 CAM VSYNC A INOUT A3 INOUT B3 CAM VSYNC OUT CAM HSYNC INOUT A4 INOUT B4 CAM HSYNC OUT FL408 VGA CAM RESET N VREG CAM AVDD 2 8V lt lt 120_SCL 3 2 SDA T QN lt 2 gz2ze2re 6 amp 0 0 0 0 VREG CAM DVDD 1 5V C amp z P1 GND5 COMMON CAM MCLK 1 P2 REV 1 0 404 15 PCLK lt lt 5 P4 P14 HSYNC OUT CAM DATA OUT 0 gt 5 P13 CAM VSYNC OUT P12 S CAM_DATA_OUT 7 CAM_DATA_OUT 6 gt lt 4 gt DATA OUT 1 DATA OUT 2 OUT 3 DATA OUT 4 CAM DATA OUT 5 Figure 1 21 Camera Socket Type Connector 58 CAM PCLK CAM VSYNC OUT OUT lt MEGA DOWN 2 SCL 12C_SDA MEGA_CAM_RESET_N CAM_MCLK VREG_CAM_AVDD_2 8V VREG_CAM_DVDD_1 8V CAM_DATA_OUT 3 CAM_DATA_OUT 4
48. CAM DATA OUT 5 3 TECHNICAL BRIEF The MEGA Camera module is connected to socket type connector with 24 pin F95MO8 Its interface is dedicated camera interface port in MSM6245 The camera port supply 24 576MHz master clock to camera module and receive 49 152MHz pixel clock 15fps vertical sync signal horizontal sync signal reset signal and 8bits data from camera module The camera module is controlled by port from MSM6245 cam o gt cam O 3 cam ours O Daa O a cam our o _ s oum o daa _ s fef _ wok me RESET Cameravescisgnal eooo MEGA DN Camera ponerdown _ vrec ovo SOS vrec 2 1 vooo VREG CAWAVOD 23V 1 avo _ our o Horizontal no Le o vere ne CAM PCLK Pixel Clock 49 152M ee cam o cam oum o _ o oaa _ Table Interface between MEGA Camera Module and MAIN camera modul
49. LED 8EA LEBB S14H AA LD402 R411 1000hm R4 LEBB s14H 1000 LD407 LEBB S14H 1000hm gt R417 gt AN R418 sss ss 1000hm REV_B EDLH0013501 gt EDLH0006001 LEBB S14H AN LD403 LEBB S14H 10405 LEBB S14H R413 1000h LD408 LEBB S1 AH R416 100 KYBD_BACKLIGHT gt Figure 1 22 Schematic of KEY back light circuit KEY side 3 TECHNICAL BRIEF 3 11 7 LCD Module NM176CN1 Tovis The NM176CN1 model is a Color TFT Main supplied by Tovis This LCD Module has 1 76 inch diagonally measured active display area with 176 RGB X220 resolution each pixel is divided into Green and Blue sub pixels and dots which are arranged in vertical stripes Features Display mode Main LCD Normally White Transmissive TN mode 265K colors LCD Driver IC NT3916 NOVATEK 16 bit CPU interface Parallel 3 11 8 Display amp LCD FPC Interface LCD module is connected to LCD KEY FPCB with 35 pin XF2B 3545 31A OMROM The LCD module is controlled by 16 bit EBI2 in 5 6245 LCD CONNECTOR
50. MDDIC_STBP F_VSYNC_GPIO16 CTS GPIO97 KEYSENSE3 GP KEYSENSE2 N GP KEYSENSE1 N GP KEYSENSEO N GP UART1 DP DATA GPIO96 UART2_CTS_N_GPIO90 UART2 DP TX DATA GPIO88 UART3 DATA GPIO85 DATAS GPIO60 7 GPIOS9 6 GPIO58 MMC DATA SDCC DATO GPIO32 PA DAC REF USB SEO VM USB OE TP 12C_SCL_GPIO27 GPIO44 GPIO39 TIH GPIO64 DATA1 1 MDDIH STBP MDDIH_DATN MDDIH_DATP GPIO19 F_HSYNC_GPIO15 F_PCLK_GPIOB2 F_DATAO_GPIO83 GPIO17 SYNTH1 GPIO41 DATA9 GPIO61 UART1 PA POWER GPIO98 KEYSENSE4_N_GP UART3 CTS GPIO86 GPIO42 MMC CMD GPIO30 SBDT SBCK SDA GPlO26 CAM CAM 219 222 CAM RINGER GPIO18 PA POWER CTL STBN 4 3 114 16 6 UART2 GPIO91 5 F16 CAM 23 CAM 19 1 20 G6 123 M21 M19 06 D F20 J 25 AD26 B20 N26 NSB DAT 2 J26 G21 N R vpp USE 26 U21 R23 014 R2 A4 L12 D10 A 9 21 16 M23 L26 D8 2 N25 H14 1 323 L21 K21 N1 D 021 B3 E23 A19 A20 33nF C246 DIG VDD D VDD VDD VDD D VDD D VDD DIG VDD DIG VDD D VDD DIG VDD DIG 10 VDD 11 VDD DIG 12 0 1 1 PAD1 2
51. MSM6245 Interface Diagram 136 6 BLOCK DIAGRAM 6 2 2 Memory Interface ADDRESS 14 0 DATA 31 0 Aj WE SDRAM CS 512Mb CAS RAS CLK_EN CLK DQM 3 0 EBI2 NAND_CS RESOUT NAND_CLE OE 512Mb NAND ALE 64MB READY AM DATA 7 0 MSM6245_A smo wa Fig 2 3 Memory Interface Diagram 137 6 BLOCK DIAGRAM 6 2 3 USB UART SIM JTAG Interface UART2 RUIM1 2 m C m I l gt C r m 5 Fig 2 4 USB UART SIM JTAG Interface 138 6 BLOCK DIAGRAM Main RF signal esmo _ Gswmonx a EN NENNEN Control signal _ Power Amp Gain Control Enable GSM PA Power Amp Gain Control UMTS GSM900TX Rx DCS Tx Rx PCS ANT SEL 0 1 Ant Switch Module Mode Selection 139 6 BLOCK DIAGRAM 6 2 4 Placement Side 404 140 6 BLOCK DIAGRAM Bottom Side Z Z _ x Z O n lt N R300 890112212524 3191652 1 141 142 7 CIRCUIT DIAGRAM 0 GSM 850 GSM 900 C450 C101 KMS 507 m GSM 850 GSM 900 TX WCDMA
52. Tx Rx volume controls Tx Rx automatic gain control AGC Rx Automatic Volume Control AVC ear seal echo canceller ESEC Acoustic Echo Canceller AEC Noise Suppression NS and programmable 13 tap FIR Tx Rx compensation filters The MSM6245 device s integrated ARM9TDMI processor downloads the firmware into the QDSP4000 and configures QDSP4000 to support the desired functionality 3 8 12 ARM Microprocessor subsystem The MSM6245 device uses an embedded ARM926EJ S microprocessor This microprocessor through the system software controls most of the functionality for the MSM device including control of the external peripherals such as the keypad LCD RAM ROM and EEPROM devices Through a generic single serial bus interface SSBI the ARM926EJ S configures and controls the functionality of the RFR6275 RTR6275 and PM6650 devices 3 8 13 Mode Select and JTAG Interfaces The mode pins to the MSM6245 device determine the overall operating mode of the ASIC The options under the control of the mode inputs are Native mode which is the normal subscriber unit operation ETM mode which enables the built in trace mode and test mode for factory testing The MSM6245 device meets the intent of the ANSI IEEE 1149 1 1993 feature list The JTAG interface can be used to test digital interconnects between devices within the mobile station during manufacture 43 3 TECHNICAL BRIEF 3 8 14 General Purpose Input Output Interf
53. Tx level TP1 16 s ee 2 101 102 TP2 WCDMA Rev 10 1 154 ev D 1 5p VPWR gt vPwR 4 5 EFCHIBSOTDF CL C155 C158 1 159 oras L404 4 7u 15p T15p 1122 157 IN 1 8nH NA 10nH G2 G1 lt WS2512_TRIG U103 2 gt 10 EOM 1 9 REIN 2 S54 3 PGND 1 eis Rev 1 0 RFOUT GND1 7602 x n 5 GND3 VCONT RO b C164 L 165 GND2 PA 05 5 T 0 5p T 1 BGND VREF 1125 o DAE 0 Q U102 L CP0402A1950DNTR gt PWR DET pu d MN R121 R122 36192 170 130 130 7dB For testing Max power of UMT 2100 is needed 81 4 TROUBLE SHOOTING Run a F TM program RF made to sat uplink frag To 9750 click Tx and set PA range sn zei Tx AGC to 410 gt N YES m current over SiimA Vane 25d pz Check coupler U 102 YES Check Tx SAW Check TP2 Check Duplexer Pd C heck block Check TP3 over 22d Bm Check FEM 11500
54. and click on Start U250 KU250 amp E Image Falder Een Browse Partition Table EHE 090 O511partition mb Browse WEWIMG WusmeWvDSD 051198 cfgdata mbn Browse OS1iWucsbmbn ____________ Browse neilWeemsbhdmbn Browse E 090 DellWoemsblmbn WEWIMG WuswmvDSD D51iWamsshdmbn WOOD DO5ilWamssen EEG mp 051 1 13 2007 3 Browse ER IMG usury OSD DS11v79usus MODLILE DO8 MAY 24 2007 F Browse curity CSEL Header LSBL OEMSBL Header CEMSBL AMSS Modem Image Header AMSS Modem Image Image LE 1 Module Image Backup Restore Reset Database amp Contents Clear Additional Options Information 132 5 DOWNLOAD 5 1 4 Caution 1 Multi downloading using the USB hub is not recommendable 2 If you see the message cal mode after completing download you must do NV restore and image media and module download 3 The NV data saved at LGMDP folder as following format D LGMDP 004400 01 429926 COM14 LGMDP folder IMEI number Port number 4 Recommended that the Module and Media Image have to be downloaded at the same time 5 Erase EFS option will erase everything media module
55. ari M Trans 50M OMPPIS nel 104 Figure 1 12 6650 Functional Block Diagram 46 3 TECHNICAL BRIEF 3 9 3 Charging control A programmable charging block in PM6650 is used for battery charging It is possible to set limits for the charging current The external supply typically connects directly to pin VCHG The voltage on this pin VCHG is monitored by detection circuitry to ascertain whether a valid external supply is applied or not For additional accuracy or to capture variations over time this voltage is routed internally to the housekeeping ADC the analog multiplexer PM6650 circuits monitor voltages at and ICHARGE pins to determine which supply should be used and when to switch between the two supplies These pins are connected to the Source or emitter and Drain or collector contacts of the pass transistor respectively inam Ex Leb vens USB OTG 13 lo 25 V 1 hosi pawar Edema Supply ame Desci 235 145 1 Pass active transistor Is on continuously closed loop controlled NL a to regulate the total current a 5 m a Ah EHS P wr Linde olt Poren al ee 2 Battery transistor ls turned on wasqa IE Battery connecting battery to node
56. bit SDRAM and NOR FLASH are currently being evaluated and documentation will be updated accrdingly in the next revision 41 3 TECHNICAL BRIEF Chipset Mode band Band Class Platform B RTR6275 IC UMTS 850 1900 2100 5 21 RFR6275 IC GSM GPRS EDGE 850 900 1800 1900 Platform E RTR6275 IC UMTS 850 1900 2100 RFR6275 IC GSM GPRS EDGE 850 900 1800 1900 EU 900 UMTS AWS 1 7UL 2 1 DL JPN 1700 UMTS Platform F RTR6285 IC US UMTS 850 AWS 1900 JP UMTS 800 1700 2100 EU UMTS 900 2100 GSM GPRS EDGE 850 900 1800 1900 Table 1 2 Description of RF configurations 42 3 TECHNICAL BRIEF 3 8 10 Stereo Wideband CODEC The MSM6245 device integrates a wideband voice audio CODEC into the mobile station modem MSM The CODEC supports two differential microphone inputs one differential earphone output one single ended earphone output and a differential analog auxiliary interface The CODEC integrates the microphone and earphone amplifiers into the MSM6245 device reducing the external component count to just a few passive components The microphone Tx audio path consists of a two stage amplifier with the gain of the second stage set externally The Rx Tx paths are designed to meet the ITU G 712 requirements for digital transmission Systems 3 8 11 Vocoder Subsystem The MSM6245 device s QDSP4000 supports AMR FR EFR and HR In addition the QDSP4000 has modules to support DTMF tone generation DTMF tone detection
57. different frequency converters The UMTS transmitter also employs the ZIF architecture to translate the signal directly from baseband to RF This requires to equal and the RTR6275 IC design achieves this without allowing Fvco to equal Far The RTR6275 IC is able to support UMTS 2100 1900 and UMTS 850 mode transmitting This design guideline shows only UMTS 2100 applications 23 3 TECHNICAL BRIEF WCDMA 2100 TX Quadrature Upconverter TX IP LB RF gt T Quadrature TX QP LB OUT2 TX QN RF VCONTROL DAC REF TEXO SADT Gain Gil amp B Hee PD LO Generation VTUNEI amp Distribution BIAS1 BIAS2 GCELL INP IP GCELL INN Quadrature RX IN x EGSM DES RX QN 5 5 INP 5 INN PWD DET IM WCDMA 2100 RX WLNA 1 E T OLUT LJ VTUM WMIX_INP WMIX INN Gd Figure 1 4 RTR6275 IC functional block diagram 24 3 TECHNICAL BRIEF 3 4 LO generation and distribution circuits The integrated LO generation and distribution circuits are driven by internal VCOs to support various modes to yield highly flexible quadrature LO outputs that drive all GSM and UMTS band upconverters and downconverters with the help of these LO generation and distribution circuits zero IF architecture is employed in all GSM and UMTS band receiv
58. it will boot to normal mode Mode d i pa TI Image Folder WORD 2511 SE ET Lie GER Partition Table EHER 051159 9partition mbin Browse QCSEL Header NNI 05119 mcsbihd cfadata mbn _ Browse E wE wir wi A VLIGD 0911 Browse eV Dep g51153vamsshd mbn E Browse 0511 Wares mon 130 5 DOWNLOAD 5 1 3 2 NV Restore Error Snapshot showing the NV Restore error Next slide shows the remedial procedure to adopt one 21 b Port Ti inu rama Mg X COMMA Normal Mode U250 KU250 EN Connect the handset and Press the Connect button in the Select Port window Enable state in the window indicates that the Phone has been detected and is ready to download 131 5 DOWNLOAD Click on Browse Select the LGMDP installation directory and a list of NV Backup files nv2 will be shown These nv files were saved every time NV Backup option was selected and the name of the nv file is determined based on the time when NV Backup was done Choose the desired NV file to be downloaded on the handset
59. p mang Here 30 Aha HE Channel Select Tx Control Cal 64 Lesi HF fir Bare Seas asM PCE Ds 7 Set Rx mode Click LNA Range 0 4 8 Click Get IM2 and Get Rx AGC Confirm the value 155 GA DAE alise LMA Of met 160 at LNA Dart Rx Control 10 Factory Test Mode 10 3 GSM Test Mode 1 To switch GSM Mode Select Mode gt GSM mode at menu commands 2 Select RF Mode Click GSM GSM1800 or GSM1900 3 Write wanted channel We usually set 1 5 Click Tx On or Tx Off 6 SET RX mode Click LNA Range 0 4 7 Click RX ON 4 For Deciding to PA DAC Value insert 14300 as a maximum value FTM Gull fe ER Www Jools lt 2 Connect Dinenmner TM Qj ss Cable Loss Madulater Config Fix Fiaquarncur MHz Leading Trading Burst IPIE Sei Fox 1700 1900 2100 Sri Quid Dessin n fe ConA 127 15 2 amp 6 Dno Paper T P Best Phone infnmisinn a n Modal Set
60. this product is immune from the above case but will prevent unauthorized use of commoncarrier telecommunication service of facilities accessed through or connected to it The manufacturer will not be responsible for any charges that resultfrom such unauthorized use B Incidence of Harm If a telephone company determines that the equipment provided to customer is faulty and possibly causing harm or interruption in service to the telephone network it should disconnect telephone service until repair can be done A telephone company may temporarily disconnect service as long as repair is not done C Changes in Service A local telephone company may make changes in its communications facilities or procedure If these changes could reasonably be expected to affect the use of the phones or compatibility with the net work the telephone company is required to give advanced written notice to the user allowing the user to take appropriate steps to maintain telephone service D Maintenance Limitations Maintenance limitations on the phones must be performed only by the manufacturer or its authorized agent The user may not make any changes and or repairs expect as specifically noted in this manual Therefore note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty 1 INTRODUCTION E Notice of Radiated Emissions This model complies with rules regarding radiation and radi
61. 02801 empty Without Color MKAZOO KEYPAD MKAZ0035901 Without Color MPBGOO PAD LCD MPBG0058301 COMPLEX empty 1 2 Without Color MPBTOO PAD CAMERA MPBT0039101 empty 1 2 Without Color TAPE PROTECTION MTAB0160501 empty Without Color TAPE PROTECTION Without Color MTADOO TAPE WINDOW MTAD0065801 empty 0 2 Without Color MWACOO WINDOW LCD MWAC0077201 COMPLEX empty 1 0 Without Color CAP MOBILE SWITCH MOCF0042501 COMPLEX empty Black MHGZOO HOLDER MHGZ0028701 coweLex empty Black MLABOO LABEL A S C2000 USASV DIA 4 0 White PAD MIKE MPBH0029101 empty PAD SPEAKER MPBN0039001 CUTTING 5 20186001 empty Without Color PAD MPBZ0186801 COMPLEX empty Without Color Color 36 2 3 2 3 4 10 4 4 4 5 5 4 4 4 N 4 11 4 12 4 4 1 4 MTABO1 13 4 3 4 2 3 4 N 4 28 4 22 4 N 4 MLANOO 4 MPBHOO 4 A 200 19 4 201 25 159 11 EXPLODED VIEW REPLACEMENT PART LIST oe em MWAEOD WNDOWCAMERA __
62. 0K 1 30V I A gt gt gt VREG RCV RCV SERE 5 u 0 0 1 8 bit Normal HKADC 5 TEMP gt gt 0 1 1 16 bit 150K 300K 1 73V WR 1 0 1 Sbit Trusted AUXIN 1 150K 470K 1 97V RESET AUDIO 1 1 1 18 BILINAND Trusted PMIC AUXIN 2 THERM 150K 680K 2 13V 5 w B B B 2 2 2 2 2 2 2 2 2 2 wm m m n n n 150K 750K 2 17V SDRAM CLOCK VREG_MSME_1 8V 198435 C200 47 Near to MSM 5 1005 16 80 20 REV B 8 SS Er C201 47 6555 2012 10uF 6 80 20 Ceramic Sz T 959 zu Z z 22953 s TT 5555
63. 0dBm output power Class3 33dB UE 20dBm output power Class3 56dBm 3 84MHz 10MHz UE 20dBm output power Class3 44dBm 3 84MHz Q 15MHz UE 20dBm output power Class3 44dBm 3 84MHz f 2050 2095 and 2185 2230MHz UE 20dBm output power Class3 30dBm 3 84MHz f 2025 2050 and 2230 2255MHz UE 20dBm output power Class3 15dBm 3 84MHz f 1 2025 2255 12500MHz UE 20dBm output power Class3 44dBm CW 204 output power Class3 46dBm CW 10MHz 46dBm 3 84MHz 20MHz UE 20dBm output power Class3 57dBm f 9KHz 1 GHz 100K BW 47dBm f 1 12 5GHz 1M BW 60dBm f 1920MHz 1980MHz 3 84M BW 60dBm f 2110MHz 2170MHz 3 84M BW 2 PERFORMANCE 2 4 Current Consumption U250 KU250 Current stan Standby 00000 Voice Voice cat Under 2 80 mA Under 290 mA Under 410mA WCDMA DRX 1 28 Tx 12dBm Tx 12dBm Under 2 12 mA Under 320 mA Paging 9 period Max Tx Power Stand by and Voice Call Test Condition Bluetooth off LCD backlight off Neighbor Cell off VT Test Condition Speaker off LCD backlight On 2 5 RSSI BAR Level Change WCDMA GSM BAR 4 gt 3 85 2 dBm 90 2 dBm 3 2 95 2 dBm 95 2 dBm BAR 2 1 106 2 dBm 100 2 dBm BAR 1 0 111 2 dBm 106 2 dBm 14 2 PERFORMANCE 2 6 Battery BAR dem Bar 1 gt Empty 3 58 0 05 Low Voltage 3 58 0 05V Stand by 3 58 0 05V Talk Warning message Blinking Interva
64. 1 NLAS5223BMNR2G REV MIC REV SUMY0010301 gt 0003802 MIC400 OB4 15L42 C33L EDTY0008606 gt EDTY0008601 Figure 1 27 Audio part schematics 65 3 TECHNICAL BRIEF Audio AMP NCP2890DMR2 _SD OUTB gt SPK SPK_AMP_EN gt REV C 20K gt 3K H426 2 BYPASSU402 7 a a gt SPK N 40 1000p C429 1000p C430 REV For Antenna Radiation Audio part schematics 66 3 TECHNICAL BRIEF 3 11 8 2 Audio Mode There are three audio modes Voice call speaker phone MIDI MP3 me Table Audio Mode Audio amp Sound Main Component There are 6 main components in U250 KU250 MSM6245 U201 MSM6245 Base Band Modem U402 NCP2890DMR2 1W Audio Amp seems jan Soe wem meses Table Audio main component list 67 3 TECHNICAL BRIEF 3 12 Main Features 1 LG U250 KU250 Main features Bar Type WCDMA 2100 GSM Tri Band 900 1800 1900 Color LCD Main 262K TFT 1 76 Dual Camera 1 3Mega VGA 0 3M 1810 speaker receiver Stereo Headset Speaker phone in GSM and WCDMA MP3 AAC decoder and play MPEG4 encoder decoder and play save JPEG en decoder Supports Bluetooth USB 950 mAh Li lon 68 3 TECHNICAL BRIEF 2 U250 KU250 Main Component Logic Audio RF 259 9 9 2 5 9
65. 10 i EBI2 OE N RE vssa9 RESOUT N gt _WP i J3 J10 SDRAM ADDR 13 BAO H lt VREG 1 8V 82 M BA1 VDDQ1 2 i 0 7 lt EBI2_DATA 0 Ni 00 VOS M10 EBI2 DATA 1 N2 01 vopaa amp 5 EBI2_DATA 2 N3 02 E 8 8 8 8 8 EBI2_DATA 3 5 210 EBI2 DATA 4 P7 04 E ce S 1 EBI2_DATA 5 M6 os F10 T 1 EBI2 DATA 6 gg vppos 199 EBI2_DATA 7 M8 07 SDRAM ADDR 0 12 gt SDRAM ADDR 0 vsso 89 SDRAM_ADDR 1 L1 au SDRAM_ADDR 2 12 4 vss 9 1 SDRAM ADDR 3 131 51 N SDRAM_ADDR 4 C2 vssa 9 i SDRAM_ADDR 5 D2 5 vsss M2 SDRAM ADDR 6 E1 i 1 SDRAM_ADDR 7 D3 SDRAM ADDR 8 E2 B8 x SDRAM ADDR 8 VDDO Di uf ufu cus i SDRAM_ADDR 10 A10 H SDRAM ADDR 1 F2 a11 H10 ere 2 eI SDRAM ADDR 12 A12 P8 5 1 8 S 8 sl J8 VDD5 9 SDRAM_DQM 0 DOMO 4 SDRAM 1 Fa B5 SDRAM DQM 2 E 2 lt VREG_MSMP_2 7V SDRAM_DQM 3 SDRAM DATA 0 31 05 SDRAM DATA 0 L4 noo cm i 1 SDRAM DATA 1 L5 neo 77 S g SDRAM_DATA 2 L6
66. 30 xml 150 9 Calibration amp RF Auto Test Program Hot Kimchi Win98 MFCD DLL COPY bat Win2000 MFCD DLL COPY bat WinXP MFCD DLL COPY bat MFC42D DLL MFCD42D DLL MFCN42D DLL MFCO42D DLL MSVCP60D DLL MSVCRTD DLL Vsflex7L ocx vsflex7l ocx regist bat LG UI Ad6500 002 dll LG UI EmKU250 001 dll Directory File LG UI Qu6250 003 dll LG UI Qu6275 004 dll 1 New HK 0808 reg 151 9 Calibration 8 RF Auto Test Program Hot Kimchi 9 2 How to use HOT KIMCHI DLL Operating Mode DLL SERIAL AT Norma 7 DLL SERIAL TM Norma gt DLL TESTER PWR Norma 7 DLL TESTER CELL Normal gt R 2320 Setting Equipment Choice WILLTEK 4405M FILE NAME TIME Debugging Info Folder D 8CM GSM 36 Folder Browse APPLY Procedure 1 Click Logic Operation of SETTING menu bar 2 Select UART Port that PC can communicate with the phone 3 Select LOGIC that you want Logic Mode gt 1 Calibration Only 152 9 Calibration amp RF Auto Test Program Hot Kimchi LTH Auto Off Line MANLIAL KU250 Start 5 Click Start 4 Select U250 KU250 Procedure 4 Select the model name U250 KU250 5 Click Start button 153 10 Factory Test Mode 10 Factory Test Mode 10 1 Test Program Setting 1 Open LG FT
67. 5011 Band select U301 HYCOUEHO MF3P 512M 512M SW 100 KMS 507 Test Connector Calibration etc DSA321SCE X100 19 2MHz 19 2MHz Bluetooth Bluetooth M 100 LBRQ 2B43A Bluetooth TRX RF Transceiver NE inet U100 RTR6275 Transceiver UMTS2100 RX SAW FL103 EFCH2140T DE1 UMTS did FL104 ACMD 7602 UMTS 2100 Duplexer 0103 W S2512 TR1G UMTS PA UMTS 2100 TX FL102 EFCH1950T TX SAW Filter U101 SKY77318 Dual GSM GSM900 TX SAW FL101 EFCH897 MTDB1 EN Iter 74 4 TROUBLE SHOOTING 4 2 SIGNAL PATH UMTS RF Common Tx Rx v UMTX 2100 Tx Rx MTX 2100 Tx UMTX 2100 Rx TxVQ gt LO h 75 4 TROUBLE SHOOTING 4 3 SIGNAL PATH GSM RF EX gt Common 7 GSM900 Tx gt DCS PCS Tx gt EGSM900 RX PCS Rx DCS RX LO gt RX I Q 76 4 TROUBLE SHOOTING 4 4 Checking VC TCXO Block The reference frequency 19 2MHz from X100 VC TCXO is used in UMTS TX part GSM part and BB part TCXO X100 DSA321SCE 19 2M NC3 NC2 NC4 NC1 VREG 2 85V OUTPUT GND 1000hm 124 1 X VCONT 19 2MHz TP2 VREG_BT_2 85V aN 2 P gt c 4 C185 100 186 TCXO amp ll RTR6275_TCXO ua gt at Schematic of the VC TCXO Block 4 2 1
68. 7 Compiled Date 14 2005 18 33 13 Released Date u 3205 IMEI Start Address 0 00030000 0 00 Stop Address 01756888 Current Address 0x0010E000 00 23 8 Sec 125 5 DOWNLOAD X COMA Rebooting the handset and re establishing It will be restore after rebooting the connection Trying to communicate with phone Checking 5 sec Restore Normal Mode Restoring NV data which backed up in the Model q ok un Backing up process User can also restore Compiled Date 14 2005 18 33 13 Released Date 3 2005 NV data using NV Default image selection IMEI NOT ACTIVE Bluetooth Addr NOT ACTIVE NV Item ITEM 20 Sec x Normal Mode e Rebooting the handset and re establishing Trying to communicate with phonell the connection 4 seconds Normal Mode Erasing the existing directories and files U250KU250 a 5 before downloading the selected Media Released Date 3 2005 image IMEI NOT ACTIVE Name 2bin Fe Size 12 688 05 42 0 Sec 126 5 DOWNLOAD Downloading Media image in progress Normal AAode Model 0 0000 Compiled Date Dui4200518 3313 Released Date IMEI NOT ACTIVE Name Harsbn 5 5 Fe Size 00 53 8 Sec Normal Mode e Downloading Module ima
69. 9 150KHz 1K BW 36dBm f 50KHzZ 30MHz 10K BW 36dBm f 30MHz 1000MHz 100K BW Spurious Emissions 30dBm f 1 12 5GHz 1M BW additional requirement 41dBm f 1893 5 1919 6MHz 300K 79dBm f 935 960MHz 100K BW 67dBm f 925 935MHz 100K BW 71dBm f 1805 1880MHz 100K BW 31dBc 5MHz Interferer 40dBc Transmit Intermodulation A1dBc 10MHz Interferer 40dBc 17 5 gt 20dBm 12 2K 1DPDCH 1DPCCH 15dB SF 4 768Kbps Multi code Error Vector Magnitude EVM Transmit OFF Power transmission DCS amp PCS Sensitivity TCH FS Class 1 105dBm Co Channel Rejection C Icz7dB Storage 30 85 TCH FS Class 1 RBER TU high FH Adjacent Channel 200kHz C la1 12dB C la1 12dB Rejection 400kHz C la2 44dB C la2 44dB Wanted Signal 98dBm 1st Wanted Signal 96dBm 1st Intermodulation Rejection interferer 44dBm 2nd interferer 44dBm 2nd interferer 45dBm interferer 44dBm Blocking Response Wanted Signal 101dBm Wanted Signal 101dBm TCH FS Class Il RBER Unwanted Depend on Frequency Unwanted Depend on Frequency 12 2 PERFORMANCE 4 Receiver WCDMA Mode Specification Reference Sensitivity Level 106 7 dBm 3 84 MHz Maximum Input Level Adjacent Channel Selectivity ACS In band Blocking Out band Blocking Spurious Response Intermodulation Characteristic Spurious Emissions 13 25dBm 3 84MHz 44dBm 3 84MHz DPCH_Ec UE 2
70. CHIP MAKER RES CHIP RES CHIP RES CHIP RES CHIP RES CHIP RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER TSOP6 1 5 W 20 V 5 A R TP P CHANNEL 20 V D S MOSFET Pb free EQFP0004701 EQBPO0009901 ERHZ0000517 ohmanew ERHZ0000517 Ohm new s noos ERHZ0000473 Bomamew ERHY0003301 hoowmanewga mee ERHZ0000490 St onmanew ______ ERHZ0000483 a7 Ohm new s noos aap sss s s s NEN NEN 169 11 EXPLODED VIEW REPLACEMENT PART LIST femme s o E NEN s E was x J EN E ua 170 11 EXPLODED VIEW amp REPLACEMENT PART LIST 57 gt Level Description RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP RES CHIP RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES ARRAY R 5300 CONN SOCKET TR100 TR BJT ARRAY U100 U101 U102 U301 U302 U402 U500 FILTER SEPERATOR U501 VA300 VARISTOR VA301 VARISTOR 8 PIN ETC PUSH PUSH TYPE RECTANGULAR 1 1 mm TRANS FLASH SOCKET EXTERNAL MEMORY CARD SOCKET 0000601 UMTS 2 W R TP MENS QFN 56 PIN R TP GSM WCDMA Single RF
71. D 1005 R TP C352 CAP CHIP MAKER 2 0000830 33 pF 50V J NPO TC 1005 R TP C353 CAP CERAMIC CHIP ECCH0000182 10 1 uF 10V X5R HD 1005 R TP C354 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V TC 1005 R TP C355 CAP CHIP MAKER ECZH0001215 1 uF 10V X5R 1005 R TP C356 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V TC 1005 R TP gt U U s gt m 2 165 11 EXPLODED VIEW REPLACEMENT PART LIST Tre E s E x J EN E ua 166 11 EXPLODED VIEW amp REPLACEMENT PART LIST em Tr cem ecoememe ___ _ nrawenmremmm _ cm poseen snmma _ cm exeo _ _ orae mm mmm mm _ pamawc erc m _ pamawc erm mm pamawc e csm mm _ commen _ cw scoemem _ empty empty empty empty empty emo sem forceren peesmomemomemm _
72. Data nv2 is erased permanently In this case choose desired NV file to be downloaded on the handset To enable this simply check the box or select the NV file from the LGMDP installation directory by clicking on the Browse button 0250 2 B Image Falder 0511 Browse Partition Table usury OOD 0511 partition mbn E WE nmsiiwgcsblhd cfadata mbn Browse Header Browse DOEMSBL Header usou gsiiwwagcsbl mbn Browse E HIC rusku OOD psiimmemsblhd mbn Browse E WE W DIESEL Browse AMSS Modern Image Header Browse AMSS Modem Image E WE weI usok mnsiimamsshd mbn TE IMG Yusu Dep 05114 ames Browse Media Image YUk wp Ds1199v MEDIA DOd MAS 13 2007 H3 Browse m m m m m m mmm Module Image usou OSD 051 177 7 79 ODIUILE v OS d MA S 24 2007 Browse Backup Restore Reset Database amp Contents Clear Additional Options Dislpay Information Click on the START button to start downloading A summary of the selected images and option information window will be displayed Click on the No button if this is not the setting you are downloading for Otherwise click on the Yes button to continue downloading
73. Designer MAR 07 2007 Jaykay MODEL 6 n c2 3 4 LCD_BL_CTRL gt EN_SET aa i D 2 WLED 1 REV C eve casy 02 WLED_2 858 Tt 4 03 7 WLED 3 Checked i Aere an GND NC 145 LG Electronics Inc MEM amp POWER 1 0 LG Electronics Inc LGMC 7 CIRCUIT DIAGRAM LCD CONNECTOR CN400 ICVE21184E150R500FR 9 1 ICVE21184E150R500FR OUT NOUT AT EBI2 DATA 0 5 LCD RESET N NOUT B2 INOUT 2 H EBI2_DATA 1 0 34 LCD IF MODE 0 1 INOUT A1 INOUT B1 5 LCD CS N INOUT B3 INOUT A3 EBI2 DATA 2 LCD IF MODE 1 gt INOUT_A2 INOUT_B2 3 LCD_ADS INOUT B4 INOUT A4 EBI2 DATA 3 LCD VSYNC INOUT A3 INOUT B3 7 EBI2_WE_N 85 TP400 31 4 NOUT A4 INOUT B4 EBI2 OE N Ts Y 400 o 58 1 2 FL400 ame S6nH A le ICVE21184E150R500FR 0 28 1401 9 1 27 i
74. ET lt i GCELL TEST I LI I I II made rA EINE 5 6nH 30 i R105 5 T T T T T T T T T T T 1 lt VPWR GCELL_INN Rev D a VDDA1 4 R433 27 Rev D 32 6 Pigs pe at 1 331 EGSM_INP VDDA2 07 lt VREG SMPS C124 lt 1403 z 0 01u 33u 1406 2 7 EGSM INN VDDA3 a gt A 4 T 100p lt 1 5nH Q vopaa R106 1 ELE 38 pcs vopas 19 mm peu 18nH 10n 39 Kos INN vpDAe 18 L114 47nH Tau 1 N 1 7 S 205 GPCS_INP VDDA8 SL 9 91 SSE GPCS_INN VDDA9 eros 2 st ar Rev C 4 B 441 C438 0134 22 VDDA10 45 N 5 N 5 6p 100p Tolotu _ amp 86dB Rev 1 0 581 CALINP p VDDA11 gt L J LC136 R108 CALINN 3 52 VDDA12 Mg L119 gt ka g C137 C138 Lctap 0 01u 4 DCS PCS TX lt s x ill 5 lt VREG SYNTH 2 6V NA NA 68p 51 c wnan 3 55 92 8 1 1 1 MN s 55 of gt L L 5 o 5 IR b e id 58 lt I kgg 1 8 515 2 FL101 S R109 10 gt a o o Es 5 zu is gt
75. F signals that are first filtered by Tx SAWs and then amplified by their respective UMTS PA The high and low band UMTS HF transmit signals emerge from the RTR6275 transceiver In the GSM receive paths the received signals are applied through their band pass filters and down converted directly to baseband in the RTR6275 transceiver IC These baseband outputs are shared with the UMTS receiver and routed to the MSM IC for further signal processing The GSM transmit paths employ one stage of up conversion and in order to improve efficiency 1 The on chip quadrature up converter translates the GMSK modulated signal to a constant envelope phase signal at RF 2 The amplitude modulated AM component is applied to the ramping control pin of power amplifier from a DAC within the MSM U250 KU250 power supply voltages are managed and regulated by the PM6650 Power Management IC This versatile device integrates all wireless handset power management general housekeeping and user interface support functions into a single mixed signal IC It monitors and controls the external power source and coordinates battery recharging while maintaining the handset supply voltages using low dropout programmable regulators The device s general housekeeping functions include an ADC and analog multiplexer circuit for monitoring on chip voltage sources charging status and current flow as well as userdefined off chip variables such as temperature RF output powe
76. HOLD assert to PMIC Battery voltage higher than 3 20V Change or charging the Battery NO Check the Key Dome VREG 1 2V VREG MSMP 2 7 VREG MSME 1 8V VREG TCXO 2 85V VREG MSMA 2 6V power up Change the Main board Is clock R306 19 2M X300 32 768Khz Change Main board Check the 94 4 TROUBLE SHOOTING VREG MSMC VREG MSME i VREG MSMP Cp arenes 32 768Khz x NE MSMA R306 19 2Mhz U250 KU250 Main PCB BOTTOM 95 4 TROUBLE SHOOTING 4 10 Charger Troubleshooting CHARGER ICHARGEOUT lt R313 VPWR lt 35 Eg Q300 QsT4 VBATT s gt Eua 2 FET N gt i Q302 r Differential lines route as equal length as possible gt ICHARGE ICHARGEOUT lt USB VBUS USB 45V gt ICHARGE Charging Procedure Connect TA or USB Cable Control the charging current by PM6650 IC Charging current flows into the battery Troubleshooting Setup Connect TA and battery to the phone Check Point Connection of TA or USB Cable Charging current path Battery Troubleshooting Procedure Check the charger TA or USB Cable connector Check the charging current Path Check the battery 96 4 TROUBLE SHOOTING
77. Hz on the speaker path and 16 kHz on the microphone path VR Voice mail voice memo Acoustic echo cancellation Audio AGC Audio Codecs AMR NB AAC AAC Plus Enhanced AAC Plus Windows Audio v9 Real Audio 8 G2 Internal vocoder supporting EFR and HR 3 8 7 5 6245 microprocessor subsystem Industry standard ARM926EJ S embedded microprocessor subsystem 16 kB instruction and 16 kB data cache LJ Instruction set compatible with ARM7TDMI ARM version 5TEJ instructions L1 Higher performance 5 stage pipeline Harvard cached architecture Higher internal CPU clock rate with on chip cache Java hardware acceleration Enhanced memory support 75 MHz 90 MHz bus clock for SDRAM 32 bit SDRAM Dual memory buses separating the high speed memory subsystem from low speed peripherals EBI2 such as LCD panels 1 8 memory interface support for and 1 8 V or 2 6 V memory interface support EBI2 NAND FLASH memory interface 8 16 bit data width NAND flash support 1 or 4 bit ECC 512 byte 2KB page size support 2 chip selects supported for NAND Flash Boot from NAND Low power SDRAM LP SDRAM interface Internal watchdog and sleep timers 3 8 8 Supported interface features USB On the Go core supports both slave and host functionality B Three universal asynchronous receiver transmitter UART serial ports USIM controller via UART Integrated 4 b
78. IM P DATA USIM R317 19K 9300 HSSC 8P 18 VREG 2 85V P RST DATA lt USIM P CLK smd 1005h 5 VA302 EVLC18S02003 1 EVL14K02200 EVLC18S02003 Figure USIM part schematics 101 4 TROUBLE SHOOTING 4 13 Camera Troubleshooting Camera control signals are generated by MSM6245 4 13 1 MEGA CAMERA c 2 Check camera connector reconnect the camera Yes NO VREG CAM AVDD 2 8V VREG DVDD 1 8 Change the Main board is 2 8V Yes heck the CAM MCLK Yes Change camera w NO Change the Main board Change the Main board 102 4 TROUBLE SHOOTING 4 13 2 VGA CAMERA lt E Check the camera connector and reconnect the camera END AVDD 2 8V Change the Main board 1 VREG DVDD 1 5V 15 2 8V Yes NO Check the CAM MCLK Change the camera Yes La NO Change the Main board Change the Main board 103 4 TROUBLE SHOOTING C447 U501 U303 C349 CAMERA LDO U303_RT9011 MGPQW VPWR VIN VOUT1 CAM AVDD 2 8V CAM LDO EN 2 VREG CAM DVDD 1 8V VPWR gt gt CAM DVDD 1 5V VOUT 1 STBY NC U501 BH15LB1WHFV 104 4 TROUBLE SHOOTING
79. INOUT B1 INOUT A1 2 2 4 0400 7 INOUT B2 INOUT A2 3 EBI2 DATA 5 5 INOUT B3 INOUT A3 EBI2 DATA 6 i E nout INOUT 2 DATA 7 RB521S 30 23 Nr 1402 ICVE21184E150R500FR 19 INOUT A1 INOUT B1 5 EBI2 DATA 8 17 Q gt INOUT 2 INOUT B2 EBI2 DATA 9 5 INOUT B3 7 2 DATA 10 15 Q INOUT 4 INOUT EBI2 11 58 FL4 Ta O 58 03 1 ICVE21184E150R500FR 9 gt INOUT A1 INOUT B1 5 EBI2_DATA 12 7 Q 5 INOUT A2 INOUT B2 A EBI2 DATA 13 3 INOUT A3 INOUT B3 7 EBI2 DATA 14 INOUT A4 INOUT B4 EBI2 DATA 15 0 4 oo ale Q 2 a T FL405 4 LCD MAKER ID 8 VREG LCD 2 8V gt WLED 1 g S WLED 2 M 3 WLED 3 2 3X WLED PWR tu lt E m 5 BIA E 5 c Dal lt EXE Dx Zo o 2 2 E MEGA CAMERA CONNECTOR SELECT SPK amp RCV U401 95888133 NLAS5223BMNR2G 7 10 B8886858 REV 10 VPWR gt lt SPK 55555555 D 2 22 aaaaaaaca 20 q 6 0 C410 SPK D Not gt RCV CAM DATA OUT 0 231 00 PCLK 75 1299 CAM PCLK 0 01 2 DATA OUT 1 VSYNC VSYNC OUT RCV C com m2 lt CAM DATA OUT 2 7 02 Cn HSYNC H5 HSYNC OUT 2 40 CAM DATA OUT 3 z 03 STANDBY Hf lt lt
80. LODED VIEW amp REPLACEMENT PART LIST R417 RES CHIP ERHYO003301 100 ohm 1 16W J 1005 R TP r Le oe pee oe pee _ peces enon 7 E 173 11 EXPLODED VIEW REPLACEMENT PART LIST 11 3 Accessory Note This Chapter is used for reference Part order is ordered by SBOM standard on GCSC 3 7 V 950 mAh 1 CELL PRISMATIC KU250 Europe 3 SBPLOO BATTERY PACK LI ION SBPLOO90501 IP Pb Free 3 7 950 0 2 PRISMATIC 50x34x55 BLACK Innerpack Europe Label 100 240V 5060 Hz 5 1 V 7 A CE AC DC ADAPTOR 3 SSADOO ADAPTOR AC DC SSAD0024501 1 85 264 5 1V 0 15 0 2V 700mA 5060 WALL 2P O CONNECTOR 100 240V 5060 Hz 5 1 0 7 AC DC ADAPTOR ADAPTOR AC DC SSADO024502 5 1 0 15V 0 2V 5 1V 700mA 5060 WALL 2P CONNECTOR 100 240V 5060 Hz 5 2 V 0 7 A CE AC DC ADAPTOR ADAPTOR AC DC SSAD0024503 85Vac 264Vac 5 2 0 3 700mA 5060 WALL 2P CONNECTOR 100 240V 5060 Hz 5 1 V 7 A CE AC DC ADAPTOR ADAPTOR AC DC 55400024504 85 264 5 1V 0 15V 0 2V 700mA 5060 WALL 2P CONNECTOR 174 Note Note
81. M GUI 2 Click Options gt gt Port Settings 3 Select Com Port and click OK Z tammsri PatChar Head all 900 1300 1300 2100 at Coble Lacs Phone Irkerrakien Adel Test S41 GAB SU Version Ad l cam I C ama a date Feinuer IHE IHH Cal Pragam Kari AF Cal Dosis 154 10 2 WCDMA Test Mode 1 Click Tools gt gt FTM GUI WCDMA 2 Select FTM Mode 10 Factory Test Mode 3 Select RF Frequencies insert 9750 in Uplink chan and push Enter Then 2140 is written at Rx UHF automatically 4 For Deciding to TX insert 380 as a maximum value And then WCDMA Power is decided 5 set PA Range select ON in R1 for High power mode or select ON in RO for Low power mode 6 Depending on a situation Click Tx On or Tx Off LG Gall Opes Took X Connec i Meremaect Head Jj Coble 1 WT ff Set rn F Ta Ba 900 XX 1900 2108 am 254 4 0 Set ate Labia Looe p Prone Irre Mace b Lil EM Lock enn MES H u X mE DG T Carmela des 2 EN 44 Ped
82. MEGA_CAM_PWR_DOWN mE INI lt RCV CAM DATA OUT 4 2 3 04 12C_SCL Rise to 2 a CAM DATA OUT 5 4 05 SDA 12C_SDA Rov GND i CAM DATA OUT 6 5 06 RESETB 7 MEGA CAM RESET N 3y F CAM_DATA_OUT 7 D7 MCLK Dun CAM_MCLK o N VA B8858a9a R437 20 8 22222000 o gt S lt lt gt lt S z Y i 5 REV_B VREG CAM 2 8V ar VREG CAM DVDD 1 8V 58 x x x n o 33 I s MIC 2 22 amp A lt MICBIAS 16 417 ds REV SUMY0010301 gt SUMY0003802 10 47p REV_1 0 i R424 DEN po TT T EE Re 2 2K 3 COMMON CAM MCLK Lan etant a P aa OB4 15L42 C33L zs C418 ICVE21184E150R500FR ICVE21184E150R500FR i 1 9 1 9 C419 CAM z NOUT A1 INOUT CAM DATA OUT 0 CAM DATA 3 z NOUT A1 INOUT CAM DATA OUT 3 42222220 lt MICIN CAM_DATA 1 3 INOUT_A2 INOUT_B2 7 CAM_DATA_OUT 1 CAM_DATA 4 3 INOUT A2 INOUT B2 CAM DATA OUT 4 DATA 2 7 INOUT A3 INOUT B3 CAM DATA OUT 2 CAM DATA 5 INOUT INOUT B3 CAM DATA OUT 5 X ene Re TET INOUT_A4 INOUT B4 INOUT_A4 INOUT B4
83. ND SDRAM cs gt RD WIp CAS NAND WP RAS NAND ALE 64 d EN NAND READY CLK DATA 7 0 0 Figure 1 14 Simplified Block Diagram of Memory Interface 51 c 3 TECHNICAL BRIEF 3 11 H W Sub System 3 11 1 RF Interface A RTR6275 WCDMA Tx GSM Tx Rx MSM6245 controls RF part RTR6275 using these signals SBST SSBI I F signals for control Sub chipset Power AMP part e RXO M P TX for T Rx of ADJ control the gain of the Tx signal prior to the power amplifier REF Reference input to the MSM Tx data DACs 1 SDRAM1 CS 1 GPIO77 GPIO87 UART2 RX DATA GPIO89 SYNTHO GP PDMO 92 SBST1_GPIO93 TX_AGC_ADJ TRK_LO_ADJ TCXO_EN_GPIO94 PA_ONO Q_OUT_N Q_OUT OUT N OUT DAC REF Q IM CH1 Q IP CH1 IM CH1 IP Q IM CHO CHO IM CHO IP CHO GP PDM2 PA RAN GE1 GP PDM1 PA RAN GEO TRST TCK TMS TDI TDO RTCK AUX GRFC14 GPIO80 AUX PCM DIN GRFC13 GPIO14 AUX PCM DOUT GRFC12 103 AUX PCM SYNC GPIO102 TX ON GRFC10 GRFC8 11 GRFC7_GPIO10 GRFX6 GPIO9 GRFC5 AUX 5 5 GPIO8 4 AUX SBCK GPIO7 GRFC3_GPIO6 GRFC2 AUX SBDT 4 GRFCO_GPIO3 BT CLK GPIO25 BT SBST 24 BT SBCK GPIO23 BT SBDT GPIO22 BT TX
84. OW MMC CD PM INT USB DAT MMC CLK CAM DATA VSYNC CAM HSYNC CAM LDO EN LCD BL CTRL MMC CMD MMC DATA EAR SENSE GSM PA RAMP KEY ROW KEY COLI USIM_RST_N 2 CAM DATA 0 CAM DATA gt MEGA CAM RESET GSM PA PWR CTL REF A m lt U gt MEGA PWR DOWN c gt SDA 2 144 7 CIRCUIT DIAGRAM U301 i HYCOUEHOMF3P 6SS0E SDRAM CS N 0 2 VSSNO 16 SDRAM gt X32 SDRAM SDRAM_WE_N WED 24 VREG_MSMP_2 7V gt 2 SDRAM RAS RAS SDRAM CAS N CAS J9 22 SDRAM vssar 810 S L10 2 2 SDRAM_CLK_EN VSSQ2 Ing _CE 15503 j vssa4 i EBI2 WE 5 WEN 5505 cr gt RB VSSQ6 NAND CLE cer vasos G
85. PA TP2 TP3 TP4 signals exils NO 3SMS00 DCS PCS Rx still has problems Rx is RHe download 5 Galioration 91 4 TROUBLE SHOOTING 4 8 Checking Bluetooth Block Test Point of the Bluetooth Block TP1 VREG BT 2 85V TP2 VREG 5 2 7V TP3 TCXO BT BT ANT Output Test Point of the Bluetooth Block TPA BLUETOOTH SNGF 0026001 ACS2450HBAXX nue 5 FEED a L126 ANT103 TP2 NA i M100 LBRQ 2B43A i a lt SBCK BT SBCK VCC OUT SBDT SBDT VDD INT SYNC DET TX EN lt BT R123 VREG MSMP 27V gt VDD_MSM RX BB TX BB DATA ZEN NE VREG BT 2 85V gt VDD BAT IN coup gt BT e gt N e e v o T z sra O 5 TP3 Schematic of the Bluetooth Block 92 4 TROUBLE SHOOTING TP1 TP2 Signals exits Change the Main 2 TP3 Is clock ok 19 2M Change the X100 4 Signals exits Change the Main board Change the 100 93 4 TROUBLE SHOOTING 4 9 Power ON Troubleshooting Power On sequence of U250 KU250 is PWR key press gt PM ON SW N go to low PM6650 KPDPWR_N pin24 PM6650 Power Up VREG_MSMC_1 2V VREG MSME 1 8 VREG_MSMP_2 7V MSMA 2 6 VREG 2 85V power up and system reset assert to MSM6245 Phone booting and PS
86. Pb Free CHIP MAKER 56 56 pF 50V J NPO 1005 RP 50V J NPO TC 1005 R TP se somos oscar ow ow _ ow somos osa gt ove sense _ rem rem parroos rem rer eccrine gt 1 19 _ CERAMIC CHIP ECCH0000115 15 22 pF 50V J NPO TC 1005 R TP C121 CAP TANTAL CHIP MAKER 20005603 99 2125 H TP empty empty pop empty empty empty empty ECCE _ CERAMIC CHIP ECCH0000393 22 uF 6 3V X5R HD 2012 R TP 161 11 EXPLODED VIEW REPLACEMENT PART LIST em s E NEN s E was x J EN E ua 162 11 EXPLODED VIEW amp REPLACEMENT PART LIST Color Level Description ECCHO0000198 2 2 uF 6 3V X5R TC 1005 R TP CAP CE
87. R TC 1608 R TP CAP CERAMIC CHIP 1 uF 6 3V K X5R TC 1005 R TP CAP CHIP MAKER 0 1 uF 16V Z NPO TC 1005 R TP CAP CHIP MAKER 0 1 uF 16V Z NPO TC 1005 R TP CAP CHIP MAKER 0 1 uF 16V Z NPO TC 1005 R TP CAP CHIP MAKER 0 1 uF 16V Z NPO TC 1005 R TP CAP CHIP MAKER 0 1 uF 16V Z NPO TC 1005 R TP CAP CERAMIC CHIP 4 7 uF 6 3V K X5R TC 1608 R TP CAP CERAMIC CHIP 10 nF 16V K X7R HD 1005 R TP 335 CAP CERAMIC CHIP ECCHO0000182 0 1 uF 10V X5R HD 1005 R TP CAP CERAMIC CHIP 4 7 uF 10V Z Y5V HD 1608 R TP CAP CHIP MAKER 12 pF 50V J TC 1005 R TP CAP CHIP MAKER 12 pF 50V J TC 1005 R TP C339 CAP CERAMIC CHIP ECCH0005602 2 2 uF 16V X5R HD 1608 R TP C340 CAP CERAMIC CHIP ECCH0005602 2 2 uF 16V X5R HD 1608 R TP CAP CERAMIC CHIP 87 uF 6 3V X5R TC 1608 R TP CAP CERAMIC CHIP o uF 10V X5R 1005 R TP CAP CERAMIC CHIP ECCH0000182 10 1 uF 10V X5R HD 1005 R TP CAP CERAMIC CHIP 1 uF 6 3V X5R TC 1005 R TP CAP CHIP MAKER 1 uF 10V K X5R 1005 R TP CAP CHIP MAKER 1 uF 10V K X5R 1005 R TP CAP CERAMIC CHIP 1 uF 6 3V X5R TC 1005 R TP CAP CERAMIC CHIP 1 uF 6 3V X5R TC 1005 R TP CAP CERAMIC CHIP 1 uF 6 3V X5R TC 1005 R TP C351 CAP CERAMIC CHIP ECCH0000182 10 1 uF 10V X5R H
88. RAMIC CHIP 10 pF 50V D NPO TC 1005 R TP CAP CERAMIC CHIP 1 nF 50V K X7R HD 1005 R TP CAP CHIP MAKER 0 1 uF 16V Z NPO TC 1005 R TP CAP CHIP MAKER 100 pF 50V J NPO TC 1005 R TP CAP CHIP MAKER 100 pF 50V J NPO TC 1005 R TP C180 CAP CERAMIC CHIP ECCH0005602 2 2 uF 16V X5R HD 1608 R TP C181 CAP CERAMIC CHIP ECCH0000182 10 1 uF 10V X5R HD 1005 R TP CAP CERAMIC CHIP 1 nF 50V K X7R HD 1005 R TP CAP CERAMIC CHIP 10 nF 16V K X7R HD 1005 R TP CAP CHIP MAKER 100 pF 50V J NPO TC 1005 R TP CAP CERAMIC CHIP 1 nF 50V K X7R HD 1005 R TP CAP CERAMIC CHIP 1 nF 50V K X7R HD 1005 R TP CAP CERAMIC CHIP 10 nF 16V K X7R HD 1005 R TP CAP CERAMIC CHIP ECCH0000115 22 pF 50V J NPO TC 1005 R TP CAP CERAMIC CHIP 5 pF 50V NPO TC 1005 R TP CAP CHIP MAKER 100 pF 50V J NPO TC 1005 R TP C200 CAP CERAMIC CHIP ECCH0000122 47 pF 50V J NPO TC 1005 R TP C201 CAP CERAMIC CHIP ECCH0000122 47 pF 50V J NPO TC 1005 R TP CAP CHIP MAKER 220 nF 10V 2 Y5V HD 1005 R TP CAP CHIP MAKER 220 nF 10V 2 Y5V HD 1005 R TP CAP CERAMIC CHIP 10 pF 50V D NPO TC 1005 R TP CAP TANTAL CHIP MAKER ECTZ0004701 87 uF 6 3V STD 1608 R TP CAP TANTAL CHIP 10 uF 6 3V L_ESR 1608 R TP 0209 2 004402 o uF 16V Z 1005 R TP C210 CAP CERAMIC CHIP ECCH0000179 22 nF 16V X5R HD 1005 R TP C211 CAP CERAMIC CHIP ECCH0000179 22 nF 16V
89. RXD REV Change Pin Description un d 20 Q4 cp 9 8 o o 22 O7 VBAT lt lt SI 4 S 8 8 Ra ee 3 5 8 8 7 e o 855 5 IE 3 3 3 3 8 Sls 5 ds bad Ella e gt e 2 VREG MSMP 27V gt ST X 5 e 80 6K S 3 8 8 8 JE s 85 313 Sl ues P VBAT_GND REVO VPWR gt gt LD400 LEBB S14H R411 0402 LEBB S14H 7 R413 1000 sa LEBB S14H LD404 LEBB SIAH p445 LD405 LEBB S14H ol T 1000hm 1000hi R416 1000h 10406 LEBB R417 LD407 LEBB S14H BAB LD408 _L BB S14H o DEIN 3 1000hm 1000hm 8419 1000h REV EDLH0013501 gt EDLH0006001 KYBD_BACKLIGHT gt E END VREG_MSMP_2 7V 1 1 ON SW N END x 118 8 EE s CLR MENU I I ro 9 KEY ROW 0 400 401 402 LEFT UP II II II I II 1 9 2 0 O KEY_ROW 1 403 404 405 OK RIGHT SIT SET L II ro 4 9 5 9 6 0 9 KEY ROW 2 lt lt 1 1 406 407 408 SND SEARCH I II II I I 7 O 8 9 9 O Q LO O KEY ROW 3 lt lt HOT400 409 HOT401 DN BACK Pi I I 0 tO 0 Q KEY ROW 4 lt KEY COL 0 KEY COL
90. SS15 VSS16 VSS18 VSS20 vsset M18 5522 VSS26 VSS27 Pial Vss29 P15 VSS30 vssat BIS vssa2 814 vssas VSS34 VSS38 GRFC8 GPIO11 ADS signal for LCD LCD ADS 6 13 20 GPIO34 GRFC7 GPIO10 72 ANT SEL1 ANT SELO vss1 vss2 vss4 28 VSS8 12 VSS19 vss23 Nie VSS24 VSS25 VSS37 B1 B2 B25 B26 L11 3 1 M12 2 19 GRFX6 GPIO9 A2 18 GRFC5 AUX 8 8 2 17 GRFC4_AUX_SBCK_GPIO7 A2 16 GRFC3_GPIO6 Co A2 15 GRFC2 GPIO5 22 GSM PA BAND AC14 AE14 wis AC13 AA13 H10 F10 A8 A2_14 GRFC1_AUX_SBDT_GPIO4 A2 13 GRFCO GPIO3 GSM PA EN AF12 A2_12 2 11 2 10 2 9 A28 A27 A26 A25 A24 A23 A22 G23 BT_SBST_GPIO24 BT_SBST BT SBCK GPlO23 26 BT SBCK BT SBDT GPlO22 222 SBDT DCRX N GPloz1 TX BT DATA GPIO20 BT DATA AE12 AC12 12 w12 112 wit AF9 AE9 1 GPIO25 lt for VSS THERMAL F DATA3 AUX TCK GPIO55 MMC SDCC GPIO31 DATAS AUX TDI GPIO57 DATA2 AUX TRST GPIO54 F DATA4 AUX TMS GPIO56 A22 A23 B22 MDDIC_STBN 829 UART1 DP DATA GPIO95 UART3 DP TX DATA GPIO84 048 047 046 063 062 MDDIC_DATP MDDIC_DATN
91. T SELO ANT SEL1 GSM 1800 GSM1900 RX LOW LOW GSM 900 RX GSM 1800 GSM 1900 TX GSM 900 TX WCDMA Table 1 1 Antenna Switch Module Control logic The RFIC operating modes and circuit parameters are MSM controlled through the proprietary 3 line Serial Bus Interface 581 The Application Programming Interface API is used to implement SBI commands The API is documented in AMSS Software please see applicable AMSS Software documentation for details 19 3 TECHNICAL BRIEF The GSM900 DCS and PCS receiver inputs of RTR6275 are connected directly to the transceiver front end circuits filters and antenna switch module The GSM900 DCS and PCS receiver inputs use differential configurations to improve common mode rejection and second order non linearity performance The balance between the complementary signals is critical and must be maintained from the RF filter outputs all the way into the IC pins Since GSM900 DCS and PCS signals are time division duplex the handset can only receive transmit at one time switches are used to separate Rx and Tx signals in place of frequency duplexers this is accomplished in the switch module The GSM900 DCS and PCS receive signals are routed to the RTR6275 through band selection filters and matching networks that transform single ended 50 Q sources to differential impedances optimized for gain and noise figure The RTR input uses a differential configuration to improve s
92. USIM P CLK eo lt gt MMC_CMD RSV2 RSVI 9 11 10 GND2 GND5 12 e lt MMC_CLK 8 GND3 GND4 DATO DO 2 RSV T gt gt MMC DATA 8 8 5 2 8 8 o8 88 ae im elo 8 8 8 4 53 8195 58 o gt L30P P gt e ws 9 9 56nH 2 E 5 85 86 5 5 33 8 s gt 2 52 Sa So ux 0 300 0 301 0 302 0 303 C LG 42 A 5505 10 01 oo eee PMIC VPWR BYPASS s Approved T VDD 5 4 7uF VDD MSM 0 1uF gt VDD MSME 4 7uF ANA 0 1uF o 8 VDD RUIM 0 1uF x 26 jiu quu puru uy pps eas VDD RF 0 1uF x Um amp VDD_WLAN 0 1uF o i j o VDD MAIN 0 1uF gt
93. Usable environment 1 Environment Specification 3 7 V Typ 32 V Min Shut Down 3 2 V Operation Temp 20 60 C Storage Temp 20 70 C Humidity 85 Max 2 Environment Accessory CLA 12 24 V DC 2 3 Radio Performance 1 Transmitter GSM Mode 100k 1GHz 39dBm Channel A M B MHz 1G 12 75GHz 33dBm Spurious 100k 880MHz 60dBm 100k 880MHz Emission 880M 915MHz 62dBm 880M 915MHz 915M 1GHz 60dBm 915M 1GHz Idle Mode 1G A MHz 50dBm 1G A MHz A JM B MHz A M B MHz B JM 12 5GHz 50dBm B M 12 5GHz In case of DCS A gt 1710 B gt 1785 In case of PCS A gt 1850 B gt 1910 CSCS Channel Radiated Spurious Emission Frequency Error Frequency Error Under Multipath and Interference Condition Due to modulation Output RF Spectrum Due to Switching transient n case of DCS A gt 1710 B gt 1785 MS allocated Idle Mode wu 30M 1GHz 36dBm Eu san 30dBm 1G A MHz 47dBm 47dBm 3dB below reference sensitivity RA250 200Hz 0 100kHz 0 5dB 0 5dB ss 1800kHz 24dB n case of PCS A gt 1850 B gt 1910 1G 4GHz AJM B MHz 53dBm 53dBm BIM 4GHz 47dBm 0 1ppm 5 RMS HT100 x100Hz ar I N 200kHz 30dB 33dB 60dB 250kHz 600 1800kHz 60dB 1800 3000kHz 65dB 7
94. X5R HD 1005 R TP C212 CAP CERAMIC CHIP ECCH0000182 10 1 uF 10V X5R HD 1005 R TP CAP CERAMIC CHIP 10 nF 16V K X7R HD 1005 R TP CAP CERAMIC CHIP 10 nF 16V K X7R HD 1005 R TP CAP CERAMIC CHIP 10 nF 16V K X7R HD 1005 R TP 0216 ECZH0004402 o uF 16V Z TC 1005 R TP CAP CERAMIC CHIP 10 nF 16V K X7R HD 1005 R TP CAP CERAMIC CHIP 10 nF 16V K X7R HD 1005 R TP 0219 cAP CHIP MAKER 2 004402 o uF 16V Z TC 1005 R TP 0220 CAP CHIP MAKER 2 004402 o uF 16V Z 1005 R TP 0221 2 004402 o uF 16V Z 1005 R TP gt U m JJ gt U 163 11 EXPLODED VIEW REPLACEMENT PART LIST s s o E s E x J EN E ua 164 11 EXPLODED VIEW amp REPLACEMENT PART LIST Color Level Description ECZH0004402 o uF 16V Z NPO TC 1005 R TP CAP CHIP MAKER 0 1 uF 16V Z NPO TC 1005 R TP CAP CHIP MAKER 0 1 uF 16V Z NPO TC 1005 R TP CAP CERAMIC CHIP ECCHO0000182 0 1 uF 10V X5R HD 1005 R TP CAP CERAMIC CHIP 1 uF 6 3V K X5R TC 1005 R TP CAP CHIP MAKER 12 pF 50V J TC 1005 R TP 325 CAP CERAMIC CHIP ECCHO0000182 0 1 uF 10V X5R HD 1005 R TP CAP CERAMIC CHIP 4 7 uF 6 3V X5
95. ace The MSM62450 device has general purpose bidirectional input output pins Some of the GPIO pins have alternate functions supported on them The alternate functions include USB interface additional RAM ROM general purpose chip selects parallel LCD interface and a UART interface The function of these pins is documented in the various software releases 3 8 15 UART The MSM6245 device employs three UARTs UART1 has dedicated pins while UART2 and UART3 share multiplexed pins 3 8 16 USB The MSM6245 device integrates a universal serial bus USB controller that supports both unidirectional and bidirectional transceiver interfaces The USB controller acts as a USB peripheral communicating with the USB host MSM6245 supports the 3 wire functionality 44 3 TECHNICAL BRIEF 3 9 Power Block 3 9 1 General MSM6245 included is fully covered by PM6650 Qualcomm PMIC PM6650 cover the power of MSM6245 MSM memory HF block Bluetooth USIM and TCXO Major power components are 3 9 2 PM6650 The PM6650 device Figure 1 1 integrates all wireless handset power management The power management portion accepts power from all the most common sources battery external charger adapter coin cell back up and generates all the regulated voltages needed to power the appropriate handset electronics It monitors and controls the power sources detecting which sources are applied verifying that they are within acceptable oper
96. aristor Array 50Ohm 15pF 4 V SMD 4ch R Varistor Array bOOhm 15pF 22 men Lum eene ora Lum forma some _ Lum mesas Lum ence Lum eno mesas Lum Lum eene L une _ INDUCTOR SMD POWER ELCP0008001 47 uH M 2 5 2 0 1 0 R TP E E ES E NN E um L401 INDUCTOR CHIP ELCH0005009 100 nH J 1005 R TP L402 INDUCTOR CHIP ELCH0005009 100 nH J 1005 R TP L405 INDUCTOR CHIP ELCH0005002 2 7 nH S 1005 R TP 1403 INDUCTOR CHIP ELCH0001033 1 5 nH S 1005 R TP PBFREE L406 INDUCTOR CHIP ELCHO005002 2 7 nH S 1005 R TP L404 INDUCTOR CHIP ELCH0005010 1 8 5 1005 R TP M100 MODULE ETC SMZY0012601 4 5 3 2 1 2 Bluetooth RF Module Q300 TR BJT PNP 009901 5 6 0 5 W R TP 12 Ic 3A hFE 270 680 168 11 EXPLODED VIEW amp REPLACEMENT PART LIST 57 gt Level Description 0301 TR FET P CHANNEL 0302 TR BJT PNP RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES CHIP MAKER RES
97. ational limits and coordinates battery and coin cell recharging while maintaining the handset electronics supply voltages Eight programmable output voltages are generated using low dropout voltage regulators all derived from a common trimmed voltage reference A dedicated controller manages the TCXO warm up and signal buffering and key parameters under voltage lockout and crystal oscillator signal presence are monitored to protect against detrimental conditions MSM device controls and statuses the PM6650 IC using Single Serial Bus Interface 5581 supplemented by an Interrupt Manager for time critical information Another dedicated IC Interface circuit monitors multiple trigger events and controls the power on sequence 45 3 TECHNICAL BRIEF MENT 1 waw 0 n LCD DFW m 1 WD Fapa E 185 ro deum Fraa am seele OC Rae IMPR un VEG RUM HAP hD D us oem etes EE RF 1 STO il BF TX 1 m L x m EG USB USED P qa ic He EE p ima RUM PPS O H
98. ave oem Eg i ed rm 128 5 DOWNLOAD 5 1 3 Troubleshooting Download Errors 1 When the phone does not work after downloading has been completed 2 Media Erasing Error 3 NV Restore Error 5 1 3 1 When the phone does not work Reboot the phone in the emergency mode Simultaneously press 2 5 and PWR red keys and then try to download all the images up to AMSS In the emergency mode you can not download media or module image The phone supports a special mode called emergency mode In this mode minimum units for downloading is running so that users can download the images again in case of emergency situation AMSS modem Media and Module images can not be running in this mode 129 5 DOWNLOAD The below dialog shows parameters of Select Port when phone is booted in Emergency mode Click on the Connect button to continue bij Mg ez 4 Fu250 KU250 Cnmp ed Die ME Ex FB TH fes calum UE Current Real Choose Image after clicking on Browse button Make sure that you have chosen the right image file After choosing valid images then click on the Start button to start downloading selected images The selected image will be downloaded to the handset from the path directory in the PC After downloading images successfully
99. bout the band center frequency the suggested starting value is shown in Figure1 3 HB2 OUT RIR6275 Fig 1 3 GSM Transmitter matching The RTR6275 IC is able to support GSM 900 and GSM 1800 1900 mode transmitting This design guideline shows a tri band GSM application Both high band and low band outputs are followed by resistive pads to ensure that the load presented to the outputs remains close to 50ohm The low band GSM Tx path also includes a Tx band SAW filter to remove noise spurious components and noise that would be amplified by the PA and appear in the GSM Rx band 22 3 TECHNICAL BRIEF 3 3 UMTS Mode 3 3 1 Receiver The UMTS duplexer receiver output is routed to LNA circuits within the RTR6275 device The UMTS Rx input is provided with an on chip LNA that amplifies the signal before a second stage filter that provides differential downconverter This second stage input is configured differentially to optimize second order intermodulation and common mode rejection performance The gain of the UMTS frontend amplifier and the UMTS second stage differential amplifier are adjustable under MSM control to extend the dynamic range of the receivers The second stage UMTS Rx amplifiers drive the RF ports of the quadrature RF tobaseband downconverters The downconverted UMTS Rx baseband outputs are routed to lowpass fillers having passband and stopband characteristics suitable for UMTS Rx processing These filter circuit
100. cally run Select Port When LGMDP starts When LGMDP starts it will automatically select Select Port button to download new image file 119 5 DOWNLOAD 5 1 2 1 Connecting to Click on the Select Port and then Select Port window will be pop up Check if state shows Enable for the port to be connected for downloading images Then click on the Connect button The port number COM7 shall be different from that of the port number in the snapshot Modi 1 a LGE LE eer ORT mmm 24 Cova asd status Ready is displayed when the application is ready for downloading While the images transmitted from PC to the handset a progressive bar Red box indicating the degree of transmission of data is displayed 3 Mile eee xj Tos www Heb Pr l gt 2 m Pot Wj Ceramic Mig t image E Su nn kiviai TU250 KU250 Comp ed Eo 112007 zz 1558 odi Da 007 CM luka in xs f wr m em omen TES Tcr Sinn Brom l E CODE ern Free 2 write arhan nn 1 mer 5 1 120 1 Image Folder indicates loot path where all i 5 DOWNLOAD mage files are placed To change location of the default image path select Browse button The
101. e 59 3 TECHNICAL BRIEF The VGA Camera module is connected to socket type connector with 20 pin CLE9120 2761 E Its interface is dedicated camera interface port in MSM6245 The camera port supply 24 576MHz master clock to camera module and receive 12 288MHz pixel clock 15fps vertical sync signal horizontal sync signal reset signal and 8bits data from camera module The camera module is controlled by I2C port from MSM6245 wes caso 0 Camera bata s pa e pa pa s owowe pa o omona a a ropa pa op a o vemm _ o os 1 em _ Dres eo Cw Reser N 1 VREG AVDD 2 8V Camera Power s o s s s Table Interface between VGA Camera Module and MAIN PCB in camera module 60 3 TECHNICAL BRIEF 3 11 6 Keypad Light There are 8 Blue LEDs in Main key backlight circuit which are driven by BACKLIGHT line from PM6650 KEY BACK LIGHT
102. e ale SDRAM DATA 7 SDRAM1 07 2 2 g elo sassa sjesgS 288 SSe 2 z l SDRAM ATA SDRAM1_D6 TX_AGC_ADJ mns 254940 oN 00 4495 o SDRAM DATA 4 SDRAMI D5 LO TRK LO ADJ oooooooooO9jggg SDRAMIDATAG pr SDRAM1_D4 TCXO EN GPIO94 77 TCXO EN SDRAM SDRAM1 03 SDRAM_DATA 1 pa 02 A12 Fi RESERVED SDRAM_DATA 0 1 01 OUT 52 TX QM VSS_PAD1_0 SDRAM1 DO OUT 5 TX ur 1 PLLOUT TEST LOUT Ix gr VSS_PAD1_2 VSS DIG 0 Aci LOUT 25 TXIP VSS_PAD1_3 VSS DIG XMEM2 CS DAC REF DAC REF i vss_PAD1_4 VSS 2 For amp O LCD CS GPIOS38 os VSS DIG 3 AF10 Q IM VSS PAD2 0 VSS DIG 4 NAND CLE UB2 N U201 1 aris VSS_PAD2_1 VSS DIG 5 722 4 CS 2 CS NO LIM VSS PAD2 2 VSS DIG 6 24 OE2 N VSS DIG 7 WE2 N MSM6245 A Q IM CHO lt lt VSS_PAD3_0 VSS_DIG_8 2 OE WE 2 DATA 0 15 lt gt LB2 N A2 0 Ez 215 VSS PADS 1 VSS DIG 9 Hr NAND READY gt NAND2 FLASH READY GPIO33 LIM CHO ose RX IM 55 2 VSS DIG 10 For IP CHO RX IP VSS PAD3 3 U201 2 VSS DIG 11 1 3 EBI2_DATA 15
103. e is outside the receiver passband but at a relatively high level It combines with Rx band jammers to create cross modulation products that fall in band to desensitize the receiver The required Tx band isolation depends on the PA channel power and Tx band losses between the PA and LNA Minimum duplexer Tx band isolation value is about 58dB Passband ripple the loss of this fairly narrowband device is not flat across its passband Passband ripple increases the receive or transmit insertion loss at specific frequencies creating performance variations across the band s channels and should be controlled Return loss minimize mismatch losses with typical return losses of 10 dB or more VSWR lt 2 1 Power handling high power levels in the transmit path must be accommodated without degraded performance The specified level depends on the operating band class and mobile station class per the applicable standard as well as circuit losses and antenna EIRP Several duplexer characteristics depend upon its source and load impedances QUALCOMM strongly recommends an isolator be used between the UMTS PA and duplexer to assure proper performance 34 5 3 TECHNICAL BRIEF 3 5 7 UMTS Rx filter FL103 EFCH2140TDE1 Frequency range 2110 2170MHz An filter is located between the UMTS and mixer Insertion loss is important but not as critical as losses before the LNA The most important parameters of this compone
104. ecking GSM Block 86 11 2 Replacement Parts 4 8 Checking Bluetooth Block 92 Mechanic gt 159 4 9 Power ON Troubleshooting 94 Main component 161 4 10 Charger Troubleshooting 96 11 3 Accessory 174 4 11 USB Troubleshooting 99 4 12 SIM Detect Troubleshooting 100 4 13 Camera Troubleshooting 102 4 14 Keypad Backlight Troubleshooting 105 4 15 LCD Troubleshooting 106 1 INTRODUCTION 1 INTRODUCTION 1 1 This manual provides the information necessary to repair calibration description and download the features of this model 1 2 Regulatory Information A Security Toll fraud the unauthorized use of telecommunications system by an unauthorized part for example persons other than your company s employees agents subcontractors or person working on your company s behalf can result in substantial additional charges for your telecommunications services System users are responsible for the security of own system There are may be risks of toll fraud associated with your telecommunications system System users are responsible for programming and configuring the equipment to prevent unauthorized use The manufacturer does not warrant that
105. econd order inter modulation and common mode rejection performance The RTR6275 input stages include MSM controlled gain adjustments that maximize receiver dynamic range The amplifier outputs drive the RF ports of the quadrature RF to baseband downconverters The downconverted baseband outputs are multiplexed and routed to lowpass filters one and one Q having passband and stopband characteristics suitable for GMSK processing These filter circuits include DC offset corrections The filter outputs are buffered and passed on to the MSM6245 IC for further processing an interface shared with the RFR6275 UMTS receiver outputs 20 3 TECHNICAL BRIEF HB RF OUT Quadrature Jpcuarnmwverter HB RF TKIP LB RF OUT auadrssre x d LB RF OUTA Joconwerver TX QN RF ON VCONTROL DAZ REF TCXO SBOT R_BIAS R BLAS2 GCELL INP INN Grusdrature qp Dowrcomserser IHN DCS INP DCS INN GPOS INP p oe a INN PAD DET IN WLNA IN euer Al OL Fig 1 2 RTR6275 RX feature 21 3 TECHNICAL BRIEF 3 2 2 GSM Transmitter RTR6275 transmitter outputsDA HB2 OUT and LB1 OUT Jinclude on chip output matching inductors The 50ohm output impedance is achieved by adding a series capacitor at the output pins The capacitor value may be optimized for specific applications and PCB characteristics based on pass band symmetry a
106. edit box shows the file path where images are located Please note that all images should be located in a selected folder 2 Click on the Browse button to select image files to be downloaded on the handset 3 NV Backup Restore NV Backup Restore always have to be done and it is default selected option Backup the NV data and restore the backed up NV data automatically U250 KU250s ec uiti UE e ly d os HERRN US CEREAL Heade AHSS Modem Image Hacker AMSS Modem Image HE IGUS Medias Image Module Image 207000 lt XI xl 4 Reset database amp Contents User related data including the setting data AOSD D511Wenatition mbn ROO D511 oedbihd cfodata mbn D5119Wacspi mbn p51iwoerehbind mbn Uu D511Weemebl mbrn ME MPH ouo vor 1 mon unen mbn vsu 1 98 vos MEDTA w Dag 13 20078 WE CE 06 1 1 899 MODE 24 2007 on the EFS is reset in the handset The user contents in the handset will be erased If you want to reset all the user data back to the way they were before you started downloading new images chec Erase EFS The calibration data user contents media k the option and module are erased Only calibration data is kept when NV backup restore is checked The user contents and file system physically are wiped out Keep All Contents
107. eeds 0 1 low frequency filter near to MSM side and isolate from digital logic and clock traces with ground on both sides plus ground above and below if routed on internal layers 3 5 3 Front End Module U500 D5011 This equipment uses a single antenna to support all handset operating modes with an antenna switch module select the operating frequency and band UMTS operation requires simultaneous reception and transmission so the UMTS RX Tx connection is routed to a duplexer that separates receive and transmit signals The active connection is MSM selected by three control lines GPIO 9 GPIO 10 Two GPIO are programmed to be ANT SELO ANT SEL1 respectively ANT SELO ANT SEL1 GSM 1800 GSM1900 RX LOW LOW GSM 900 TX WCDMA GSM 1800 GSM 1900 TX Table 1 2 Front End Module control logic 26 3 TECHNICAL BRIEF 3 5 4 PMIC Functional Block Diagram U300 PM6650 2M Input power management Valid external supply attachment and removal detection Supports unregulated closed loop external charger supplies and USB supplies as input power Sources Supports lithium ion main batteries Trickle constant current constant voltage and pulsed charging of the main battery Supports coin cell backup battery including charging Battery voltage detectors with programmable thresholds VDD collapse protection Charger current regulation and real time monitoring for over current protect
108. en this feature is enabled VBAT is checked as soon asa valid external supply is detected IF VBAT lt 1V Faulty battery too low to chg PM6650 powers up normally lf 1V lt VBAT lt Battery good but depleted handset supply voltage VOD 2 Battery transistor is turned OFF Normal PM6650 power up 4 Current is set by software 6 Battery voltage is routed to MSM MSM HKADC measures VBAT 5 Charging current blue u Trickle charging is finished kus HN S DORT when the battery reaches the desired threshold 48 3 TECHNICAL BRIEF Constant Current Charging The PM6650 IC supports constant current charging of the main battery by controlling the charger pass transistor and the battery transistor The constant current charging continues until the battery reaches its target voltage 4 2V Constant Voltage Charging Constant voltage charging begins when the battery voltage reaches a target voltage 4 2V The end of constant voltage charging is commonly detected 10 of the full charging current Charging Method CC amp CV Constant Current amp Constant Voltage e Maximum Charging Voltage 4 2V Maximum Charging Current 600mA Nominal Battery Capacity 950mAh Charger Voltage 5 1V Charging time Max 3h Except time trickle charging Full charge indication current icon stop current 100mA Low battery POP UP Idle 3 58V Dedicated GSM WCDMA
109. eripherals with 30 fps QCIF viewfinder resolution and support for 2 MP camera sensors Direct interface to digital camera module with video front end VFE image processing rue 3D graphics for advanced wireless gaming e SecureMSM v2 0 includes support for Open Mobile Alliance OMA DRM v2 0 SIM lock and IMEI integrity Support for Q fuse Only trusted boot is supported Audio that is on par with portable music players Vocoder support EFR HR Advanced 14 x 14 mm 0 5 mm pitch 409 pin lead free CSP packaging technology SD SDIO hardware support 34 3 TECHNICAL BRIEF SPK RCV Bluetooth PM6650 GSM Block JA GSM900 Tx GSM1800 1900 Tx GSM900 Rx GSM1800 Rx 4 5 1900 1 3M CAM WCDMA Block VGA CAM RTR6275 AND SDRAM FLASH KEYPAD AntSW Logic Figure 1 10 Simplified Block Diagram 35 3 TECHNICAL BRIEF 3 7 Block Diagram MSM6245 rocessor 7 OCESSING DUAL MEMORY BUS p Default 8bit Camera 1 3M Interface 5 6245 UMTS WCDMA i TL GRAPHICS Modem QDSP 4000 BT 1 2 Open GL ES PLL VIDEO QDSP 4000 12254 4 With Jazelle H 263 H 264 CONNECTIVITY MP3 AAC EVRC QCELP AMR CMX MIDI m 0 LL 5 2 oc x Co
110. ers and transmitters to translate the signal directly from HF to baseband and from baseband to HF Two fully functional fractional N synthesizers including VCOs and loop filters are integrated within the RTR6275 IC The first synthesizer PLL1 creates the transceiver LOs that support the UMTS 2100 1900 1800 transmitter and all tour GSM band receivers and transmitters including GSM 850 GSM 900 GSM 1800 and GSM 1900 The second synthesizer PLL2 provides the LO for the UMTS 2100 1900 1800 receiver An external TCXO input signal is required to provide the synthesizer frequency reference to which the PLL is phase and frequency locked The RTR6275 IC integrates most of PLL loop filter components on chip except two off chip loop filter series capacitors and significantly reduces off chip component requirement With the integrated fractional N PLL synthesizers the RTR6275 has the advantages of more flexible loop bandwidth control fast lock time and low integrated phase error 3 5 Off chip RF Components 3 5 1 WCDMA PAM U103 WS2512 TR1G The UMTS PA output power is monitored by power detector circuits U100 RTR6275 This detector voltage can be used for transmitter calibration and monitor to meet RF system Re VPWR gt 00 VPWR C159 15 10nH see 2512 TR1G U103 HIA 10 H c 9
111. ge in progress 1250 250 7 Compiled Date 14 2005 18 33 13 1 Released Date 3 2005 IMEI NOT ACTIVE 0 Name Commoncomposer pxo Type Size 100 864 163 798 0 2005 15 04 1 Sec Gd d GA TUER TER AS ROVER ES MOLD DOVE DIAS Download End Downloading process has completed tale 2 successfully Compiled Date uli42005 18 33 13 Released Date 3 2005 IMEI NOT ACTIVE Bluetooth Addr Nor acrIVE Stop Address n Current Address MI 14 2005 6 19 08 3 Sec rp Downinag Competes 127 5 DOWNLOAD 5 1 2 4 Tools Device Manager allows to monitor current hardware that is installed on your PC Device Manager is designed to monitor USB connectivity and check where the COM has been installed Select Device Manager from the Tools of the file menu Barsa Brem b am THE Er F oh cv Dy D E C dria Rh Sr cb Deren Uer dd ET coni ap FIE TPA s ruens L T other princi rentre ke E Hobin Herder B e t a lt P HET Part en ie Perl T cher Fest LE Pobla Das d
112. ications This module has been optimized for excellent efficiency and Pout while maintaining high GSM GPRS efficiency The small size and high performance is achieved with high reliability GaAs HBT technology With 500 and output no external matching or bias components are required The module incorporates two highly integrated GaAs power amplifier die with a BICMOS controller Each amplifier has three gain stages with on die inter stage matching implemented with a high Q passives technology for optimal performance The CMOS controller implements a fully integrated power control within the module for GSM operations and serves as the GPRS operations This eliminates the need for any external couplers power detectors current sensing etc to assure the output power level The module has Tx enable and band select inputs Module construction is a low profile overmolded land grid array on laminate CUDOIVI lt lt VPWR PA_RA 2 lt 5 C123 Js 0 01u 1406 2 7 L116 C124 1403 T 100p 1 5nH 10nH lt lt GSM AWN R107 134 0101 N 9 8 86dB 1 0 lt lt DCS PCS TX 20 17 gt VCC1B lt gt DCS PCS OUT DCS PCS INS O1 G3 iH EGSM 421 IN G2 G1 u 01 R113 100 onm 19
113. io Interface Detailed Diagram MSM6245 63 3 TECHNICAL BRIEF MSM6245 CODEC pins gt gt OO co AUDIO C200 47 Near to MSM S gt 201 47 2020 AN ll 0060 gt gt gt 9 eL PAA 0 lt gt AN ca C204 10p cic CN EM 5 Place near 212 MSM pin W1 0 1u SM pin o 1096 CODEC VSS o O RDUM TERMED TS rr O lt lt lt 3 lt lt F lt lt lt lt lt lt lt lt lt lt lt 2 Z z 2 2 Z t Occ es 3008085 gt o z217 lt lt 2 uu 25 im 21553 SDCC DAT GPIO99 22 SDCC DAT2 GPIO100 M26 Figure 1 25 Audio part schematics VREG_MSMP_2 7V 2 2K CONNECTOR M MICBIAS R400 R401 5 1K C400 E 0 1u R402 10K 1M 5 4 1 lt OUT 3 8404 2 100K VREG MSMP 27V R403 51K CN401 HSEJ 18S04 25R MIC2N U400 NCS2200SQ2T2G 2 401 R406 1000hm R405 R407 100 C402 33u EAR SENSE Figure 1 26 Audio part schematics 64 Dar OOOOOOOQ 3 TECHNICAL BRIEF SELECT SPK amp RCV U40
114. io One Zero IF architecture to eliminate intermediate frequencies directly converting signals between RF and baseband The quad band GSM transmitters use a baseband to IF upconversion followed by an offset phase locked loop that translates the GMSK modulated signal to RF UMTS 2100 GSM 900 1800 1900 Bluetooth 1 RTR6275 for GSM Tx and WCDMA Tx 2 RTR6275 for GSM Rx and WCDMA Rx PM6650 Em 4 PM6650 for power E management 3 Bluetooth RF module Fig 1 1 Block diagram of RF part QUALCOMM s branded chipset that implements a Zero IF radio architecture gt 17 3 TECHNICAL BRIEF A generic high level functional block diagram of U250 KU250 is shown in Figure 1 1 One antenna collects base station forward link signals and radiates handset reverse link signals The antenna connects with receive and transmit paths through a FEM Front End Module The UMTS receive path each include a LNA a RF band pass filter and a downconverter that translate the signal directly from RF to baseband using radioOne ZIF technique The RFIC Rx analog baseband outputs for the receive chains connect to the MSM IC The UMTS and GSM Rx baseband outputs share the same inputs to the MSM IC For the transmit chains the RTR6275 IC directly translates the Tx baseband signals from the MSM device to an RF signal using an internal LO generated by integrated on chip PLL and VCO The RTR6275 IC outputs deliver fairly high level R
115. ion Charger transistor protection by power limit control Control drivers for two external pass transistors and one external battery MOSFET MOSFET is optional Voltage current and power control loops Automated recovery from sudden momentary power loss Output voltage regulation One boost step up switched mode power supply SMPS for driving white LEDs and hosting USBOTG Three buck step down switched mode power supplies that efficiently generate MSMC MSME and or second MSMC supply voltages Supports dynamic voltage scaling DVS for MSMC and Eleven low dropout regulator circuits with programmable output voltages implemented using three different current ratings 300 mA two 150 mA six and 50 mA three These can be used to power MSMA MSMP RFRX1 RFRX2 RFTX SYNT TCXO WLAN MMC USB and RUIM circuits All regulators can be individually enabled disabled for power savings Low power mode available on MSMA and MSMP regulators All regulated outputs are derived from a common bandgap reference close tracking Integrated handset level housekeeping functions reduces external parts count size cost Analog multiplexer selects from 8 internal and up to 18 external inputs Multiplexer output s offset and gain are adjusted increasing the effective ADC resolution Adjusted multiplexer output is buffered and routed to an MSM device ADC Dual oscillators 32 768 kHz off chip crystal and o
116. it secure digital SD controller for SD and Mini SD cards Parallel LCD interface General purpose I O pins External keypad interface 39 3 TECHNICAL BRIEF 3 8 9 Supported multimedia features Provide additional general purpose MIPS by using Two QDSP4000s Dedicated hardware accelerators and compression engines Improve Java BREW and game performance Integrated Java and 2D 3D graphics accelerator with Sprite engine Enable various accessories USB host connectivity L1 Integrated USB host controller functionality Enable compelling visual and audio applications Qcamera High quality digital camera processing supporting CCD or CMOS image sensors up to 2MP 30 fos QCIF viewfinder Qtv Audio and video decoder that supports VOD MOD and Broadcast multimedia services Audio codecs supported AMR NB AMR WB AMR WB AAC AAC Plus Enhanced AAC Plus Windows Media Audio v9 RealAudio v8 Integrated stereo wideband codec for music digital clips CMX Video codecs supported MPEG 4 263 H 264 Windows Media v9 and RealNetworks v10 Video telephony services Qvideophone two way mobile video conferencing solution that delivers 15 fps QCIF 64kbps Video codecs supported MPEG 4 and H 263 Audio codecs supported AMR NB Real time mobile video encoder Video codecs supported MPEG 4 H 263 H 264 Audio codecs supported
117. l 3min Stand by 1min Talk Power Off 3 20 0 05V 15 2 PERFORMANCE 2 7 Sound Pressure Level No Sbecfication Sending Loudness Rating SLR 2 Receiving Loudness Rating RLR Side Tone Masking Rating STMR Echo Loss EL Idle Noise Sending INS 64 dBmOp Idle Noise Receiving INR Under 47 dBPA Under 36 dBPA Sending Loudness Rating SLR Receiving Loudness Rating RLR 1 x3 dB 12 3 dB Side Tone Masking Rating STMR Min 25 dB Echo Loss EL 40 dB Idle Noise Sending INS 55 dBmOp Idle Noise Receiving INR GSM Power Level 5 DCS PCS Power Level 0 Cell Power 90 105 dBm Under 62 dBm Acoustic Max Vol MS Headset SLR 8 3dB MS Headset RLR 15 x 3dB 12 SLR RLR Mid value setting 2 8 Charging Charging Method CC amp CV Constant Current and Constant Voltage Maximum Charging Voltage 4 2 V Maximum Charging Current 700 mA Normal Battery Capacity 950 mAh Charging Time 3 hours except for trickle charging time Full charging indication current charging icon stop current 80 mA Cut off voltage 3 20 V 16 3 TECHNICAL BRIEF 3 TECHNICAL BRIEF 3 1 General Description The U250 KU250 supports UMTS 2100 GSM 900 DCS 1800 and PCS 1900 based GSM GPRS UMTS All receivers and the UMTS transmitter use the rad
118. lt AIR 58588 548484 5 27 4 5991 VAAN VREG_MSMC_1 25V VREG_MSME_1 8V VREG_MSMP_2 7V VREG_MSMA_2 6V 22222 22722 2 ze R amp geese 555585 8 5 8 i8 5 8 i T SDRAM ADDR 0 14 C 00000 a co lt gt gt z CAD 10uF gt Input 2 6V CE MA M PAS INT 2 za 8 204 206 C209 S 1918 L zz 8 10 4 ka amp 23 x 2 2 jajaja a 1 C212 MSM pin W18 L s 2 2 2 2 2 E 2 5 2 lt lt lt lt lt lt lt lt lt lt 2 i e 10 CODEC VSS a 02 lt lt lt lt lt 8 90 o 00 ba 5 82 8 slolsiglgigieisislsicialelelel 22222 2 38 agg 55 88 ES 0 01 C217 C219 C220 C221 gt 53 3 2 2 2 2 2 2 lt gt Z G x 3 gt 5 2252 lt lt 0 lt F 31 gt lt lt lt gt gt lt lt lt lt lt 5 lt lt lt lt lt lt lt lt lt lt 0 01 0 01 0 1uF T 0 1uF 0 1uF da at ie RB SSS SVS SVS AVS AVS dug
119. n chip RC assures MSM device sleep clock Crystal oscillator detector and automated switch over upon lost oscillation Real time clock for tracking time and generating associated alarms On chip adjustments minimize crystal oscillator frequency errors Circuits control TCXO warm up and synchronize deglitch and buffer the TCXO signal TCXO buffer control for optimal QPH catnap timing Three stage over temperature protection smart thermal control 27 3 TECHNICAL BRIEF Integrated handset level user interfaces Four programmable current sinks recommended as keypad backlight LCD backlight camera flash and general purpose drivers Vibration motor driver programmable from 1 2 to 3 1V in 100 mV increments Speaker driver with programmable gain turn on time and muting differential operation drives external 8 O speakers with volume controlled 500 mW C level interfaces MSM device compatible 3 line SBI for efficient initialization status and control Supports the MSM device s interrupt processing with an internal interrupt manager Many functions monitored and reported through real time and interrupt status signals Dedicated circuits for controlled power on sequencing including the MSM device s reset signal Several events continuously monitored for triggering power on power off sequences Supports and orchestrates soft resets USB OTG transceiver for full speed 12 Mb s and low speed 1 5 Mb s i
120. nH WS2512 TRIG U103 32 10f vcc2 vec Je E 409 C444 FL104 1123 91 anna 2 2 lt L 4 7nH 2 2p 1 1nH Rev 1 0 T 22 PGND RX Ces 8 3 2 ANT I RFOUT GND1i T 3p AMD 7602 GND3 vcoNT l ca Less GND2 sla osp T BGND VREF 3 1125 EFCH2MOTDE 47nH TR100 DIES MENS RUN KRX102U 445 F L408 1410 4 7nH 2p dus L CP0402A1950DNTR A MORI EET N lt VREG_TCXO_2 85V PWR DET BM types S RP E gt _Letg2 Lc 100p gt V L128 1 8nH 10p Bev D EN 1407 27H erden 84 4 TROUBLE SHOOTING Set the Phone Ax is Check Vbias over 2 2 i heck bias Black soldering Check 1 4 heck the Signal exist YES Check TP3 Check the Duplexer Signal exist YES NO Check Check the 75 Hx is Check other Parts 85 4 TROUBLE SHOOTING 4 7 Checking GSM Block START 1 Check ANT SW Module 2 Check Tx PAM Block 3 Check RF Rx Level 4 Re download SW amp CAL 66 4 TROUBLE SHOOTING 4 7 1 Checking RF Tx level TP1 2 C101 TP1
121. nn USB Figure 1 11 Simplified Block Diagram of MSM6245 gt 96 3 TECHNICAL BRIEF 3 8 Subsystem MSM6245 3 8 1 ARM Microprocessor Subsystem The MSM6245 device uses an embedded ARM926EJ S microprocessor This microprocessor through the system software controls most of the functionality for the MSM including control of the external peripherals such as the keypad LCD RAM ROM and EEPROM devices Through a Generic single wire serial bus interface SSBI the ARM926EJ S configures and controls the functionality of the RTR6275 RFR6275 and PM6650 devices 3 8 2 WCDMA R99 features The MSM6245 device supports release 99 June 2004 of the W CDMA FDD standard including the following features modes and data rates for W CDMA frequency division duplex FDD with the following restrictions The downlink supports the following specifications Up to four physical channels including the broadcast channel BCH if present Up to three dedicated physical channels DPCHs Spreading factor SF range support from 4 to 256 The following transmit diversity modes are supported Space time transmit diversity STTD Time switched transmit diversity TSTD Closed loop feedback transmit diversity B The uplink supports the following specifications The uplink provides the following UE support One physical channel eight TrCH and 16 TrBks starting at any frame boundary A maximum data rate of 384 kbps
122. nt include Out of band rejection or attenuation levels usually specified to meet these conditions FFar out of band signals ranging from DC up to the first band of particular concern and from the last band of particular concern to beyond three times the highest passband frequency Tx band leakage the transmitter channel power although attenuated by the duplexer still presents a cross modulation threat in combination with Rx band jammers The HF filter must provide rejection of this Tx band leakage Other frequencies of particular concern bands known to include other wireless transmitters that may deliver significant power levels to the receiver input Frequency Our Preliminary spec D N T2140F3A Unit Passband 2110 2170 Insertion loss 2110 2170MHz 15 20 Ripple in passband 2110 2170MHz o Amplitude imbalance 12110 2170MHz Phase imbalance 2110 2170MHz Attenuation VSWR 2110 2170 __ OjN gt o N e ID Io 1920 1980MHz DCinputlevel o Operating temperature s Storage temperature 30 On e 8 a a Table 1 3 WCDMA Rx SAW Filter Specification 32 3 TECHNICAL BRIEF 3 5 8 Bluetooth M100 LBRQ 2B43A The MSM6245 includes BT baseband embedded BT 1 1 compliant baseband core so the other bluetooth components are an bl
123. nterfacing of the MSM device to computers as a USB peripheral or connecting the MSM device to other peripherals RUIM level translators enable MSM device interfacing with external modules e Twelve multi purpose pins that can be configured as digital or analog 1 05 bi directional I Os or current sinks Default functions support the RUIM level translators power on circuits analog multiplexer inputs an LED driver and a reference voltage buffer Highly integrated functionality in a small package 84 BCCS with a large center slug for electrical ground mechanical stability and thermal relief External Supplies 2 Output voltage regulation pass transistors Voltage 1 Input power management Regulators Charger amp Battery Datectors amp Controllors Trickle amp Coin Power on Call Chargors Circuits 4 User interfaces ora Serial Bus SRAN Interface Silent alarm vibrator Vibrator Rus Driver Manager Keypad backlight MSM TCXO Circuits VCTCXO LCD backlight Display LEDs Drivers Speaker 19 2 M Iz reference 5 IC interfaces MUX prona circuits 3 General housekeeping coment handset neis RUIM Level RUIM interface cuits circuli Translators Figure 1 6 MSM6245 Interface 28 3 TECHNICAL BRIEF USE OTG REF Output host pawer cti minas REF Voltage
124. o frequency emission as defined by local regulatory agencies In accordance with these agencies you may be required to provide information such as the following to the end user F Pictures The pictures in this manual are for illustrative purposes only your actual hardware may look slightly different G Interference and Attenuation A phone may interfere with sensitive laboratory equipment medical equipment etc Interference from unsuppressed engines or electric motors may cause problems H Electrostatic Sensitive Devices ATTENTION Boards which contain Electrostatic Sensitive Device ESD are indicated by the sign Following information is ESD handling Service personnel should ground themselves by using a wrist strap when exchange system boards When repairs are made to a system board they should spread the floor with anti static mat which is also grounded Use a suitable grounded soldering iron e Keep sensitive parts in these protective packages until these used When returning system boards or parts like EEPROM to the factory use the protective package as described 2 PERFORMANCE 2 PERFORMANCE 2 1 System Overview m Talk Time Over 200 min WCDMA Tx 12 dBm Voice with 950mAh Over 180 min GSM Max Tx Power Voice Standby Time Over 350 Hrs WCDMA DRX 1 28 with 950mAh Over 450 Hrs GSM Paging period 9 Yes Micro SD D es 2 PERFORMANCE 2 2
125. peaker SPK_RCV SPK_RCV NO Change the Main board 111 4 TROUBLE SHOOTING Analog Switch SPK Audio Amp 112 4 TROUBLE SHOOTING 4 19 Main microphone MIC400 MIC1P MIC1N MSM6245 C Make a call BIAS C416 is 1 8V YES Make sound to MIC wave appears C418 C419 YES NO YES Change the Main board Work war END Change main board Change the MIC 113 4 TROUBLE SHOOTING MIC400 114 4 20 Headset microphone Headset C210 C211 MIC2P MIC2N MSM6245 Y Make a call 4 TROUBLE SHOOTING Change the headset and END NO YES HOOK KEY is detected Change the MAIN board Yes MICBIAS is biased by 1 8V Yes Sine wave appears at C210 C211 Change the MAIN board Change the headset Main board and retry Change the Main board 115 4 TROUBLE SHOOTING 116 4 TROUBLE SHOOTING 4 21 Vibrator The Vibrator is connected between VPWR PM6650 25 pin The Vibrator motor driver is an SBl programmable voltage out that is reference to VPWR Operate the Vibrator Work wen End Change vibrator or PM6650
126. r and battery ID Various oscillator clock and counter circuits support IC and higher level handset functions Key parameters such as under voltage lockout and crystal oscillator signal presence are monitored to protect against detrimental conditions 18 3 TECHNICAL BRIEF 3 2 GSM Mode 3 2 1 GSM Receiver The Dual mode U250 KU250 s receiver functions are split among the three RFIC s as follows GSM 900 DCS 1800 and PCS 1900 UMTS 2100 modes use the RTR6275 IC only Each mode has independent front end circuits and down converters but they share common baseband circuits with only one mode active at a time All receiver control functions are beginning with SBI controlled parameters HF Front end consists of antenna antenna switch module D501 1 which includes three RX saw filters GSM900 DCS and PCS The antenna switch module allows multiple operating bands and modes to share the same antenna In U250 KU250 a common antenna connects to one of six paths 1 UMTS 2100 RX Tx 2 GSM 900 Rx 3 GSM 900 Tx 4 DCS 1800 Rx and 5 DCS 1800 Tx PCS 1900 Tx High Band Tx s share the same path 6 PCS 1900 Rx UMTS operation requires simultaneous reception and transmission so the UMTS RX Tx connection is routed to a duplexer that separates receive and transmit signals The GSM900 DCS and PCS operation is time division duplexed so only the receiver or transmitter is active at any time and a frequency duplexer is not required AN
127. rol GSM Mode 0 2V lt VBS lt 0 4V DCS PCS Mode 1 25V lt VBS lt 3 0V VPWR PAM Supply Voltage Vcc higher than 3 0V TP1 TP2 4 EGSM Ban a if lt lt VPWR pic 2 070174 123 ie 4 lt L403 3 0 01u 33u 1 5nH L116 5 10nH 5 x ra glo TP1 EUM 8 l C438 184 RI C136 C138 C139 0 01u 68p I a FL EGSM OUT 101 1 13 100 GND lt GSM SKY77318 6149 5 TP2 Schematic of GSM PAM Block 89 4 TROUBLE SHOOTING 4 7 5 Checking RF Rx Block TP1 DCS RX INPUT TP2 PCS RX INPUT TP3 GSM RX INPUT U500 Rev C C439 5p LE 19 voo lt GsMe00 RXi 5 TP1 GSM900 RX2 GSM1800 RX1 GSM1800_RX2 2 GND1 GSM1900 RX1 7 I 1 GND2 GSM1900 RX2 GND3 WCDMA2100 GND4 C442 5 6p GND5 D5011 CTRL1 5 ANT SELO 17 GND6 CTRL2 ANT SEL1 L 20 GND7 21 2 54 GND9 GSM900 TX 4 GND10 GSM18001900 TX T 5 6p TP3 mss 27H EGSM Rev D zl T y lt 4VPWR 1 cie C124 1403 3 0 01u L406 2 7nH ms 100p lt 1508 446 5 te 18nH 10nH Y Schematic of GSM900 DCS PCS Rx Block 90 4 TROUBLE SHOOTING NO Check ANT SW Module and sa daring of TPs T
128. s 096 051 1 usouo MEDIA VOIG MAY 13 20 Arie E Module Image 051 1 fusoruse MODULE VOSd MA Y 24 al L a Default DWMDPW1 5 011548 1 Backup Restore keep All Contents Clear Additional Options Cislpay Information x Start DE 122 5 DOWNLOAD Select the path on Image Folder by clicking on the Browse then the LGMDP will automatically load images accordingly Also you can select images by manually For instance select the path of AMSS Modem Image file by clicking on the Browse button The selected AMSS image will be downloaded to the handset from the path directory in the PC Make sure that you have chosen correct file In case of wrong AMSS Moden file is file is selected the phone may not work The file name shall be different from that of the file name in the snapshot U250 KU250 Ese Image Folder I Partition Table F wEwmwesuswupep 11 Heada EWEWIG Aun 0511 men SCH M EREM 1111 OEMSBL Header Ee RK _ 0511 mbn AMES Modem mage Hasier Modern mage F Image F Module image F My Default keen Content Additional Coban 123 5 DOWNLOAD NV restore is failed then the NV
129. s allow DC offset corrections and their differential outputs are buffered to interface shared with GSM Rx to the MSM IC The UMTS baseband outputs are turned off when the RTR6275 is downconverting GSM signals and on when the UMTS is operating 3 3 2 Transmitter The UMTS Tx path begins with differential baseband signals and Q from the MSM device These analog input signals are amplified filtered and applied to the quadrature up converter mixers The up converter output is amplified by multiple variable gain stages that provide transmit AGC control The AGC output is filtered and applied to the driver amplifier this output stage includes an integrated matching inductor that simplifies the external matching network to a single series capacitor to achieve the desired 50 Q interface The RTR6275 UMTS output is routed to its power amplifier through a bandpass filter and delivers fairly high level signals that are filtered and applied to the PA Transmit power is delivered from the duplexer to the antenna through the switch module The transceiver LO synthesizer is contained within the RTR6275 IC with the exception of the off chip loop filter components and the VC TCXO This provides a simplified design for multimode applications The PLL circuits include a reference divider phase detector charge pump feedback divider and digital logic generator UMTS Tx using PLL1 the LO generation and distribution circuits create the necessary LO signals for
130. selected image file with options ES Partitian Table TRUE TRUE Header TRUE cs bl TRUE QemSbl Header RUE CemSbl TRUE Amss Modem Header TRUE Amss Modem TRUE RUE Module TRUE Erase Option Reset Database amp Contents Backup FALSE Default TRUE 124 5 DOWNLOAD 5 1 2 3 Downloading This message box informs that a new file for NV 1 250 250 20070313 101514 nv2 NV backup will be created in the displayed This file is created at this program s sub directory file name in the LGMDP installation The sub directory s name is IMEI 123456 78 123456 You an ect this fle Won NV directo ry It will be backup after 2 seconds Cancel Backing up NV data backed up data Madel U250 KU250 will be stored in the LGMDP installation Compiled Date Dui 14 2005 18 33 13 di t Released Date 3 2005 Hec IMEI ACTIVE Bluetooth Addr ACTIVE Item LLL a n ua 00 08 1 Ser Normal Mode Erasing the existing directories and files Model 9250250 Compiled Date 14 2005 18 33135 RelesedDate 1320065 IMEI 7 Name Btsearchpxo Type Fe before the Module image is downloaded Size 2 1 550 aen 4 2005 H3G HK 00 08 6 Sec Normal Mode Downloading the AMSS modem image Model 192500250
131. terface between LCD Module and MAIN 62 3 11 8 1 Audio Signal Processing amp Interface 3 TECHNICAL BRIEF Audio signal processing is divided uplink path and downlink path The uplink path amplifies the audio signal from MIC and converts this analog signal to digital signal and then transmits it to DBB Chip MSM6245 This transmitted signal is reformed to fit in GSM 8 WCDMA frame format and delivered to HF Chipset The downlink path amplifies the signal from DBB chip MSM6245 and outputs it to receiver or speaker The receive path can be directed to either one of two earphone amplifiers or the auxiliary output The outputs 1 EAR1OP EAR1ON and auxiliary out LINE P LINE are differential outputs Earphone2 HPH is a single ended output stage designed to drive a headset speaker The microphone interface consists of two differential microphone inputs one differential auxiliary input and a two stage audio amplifier CODEC of poa adds E Audio DSP Microphone TX FILT CHS H r x um CTME FX cain Dein CIO Leo oce eni LE Audio DSF Tm PCM Interface ig Ohne Cola oat lem Dee EEE in Chow n Li Tu uma ERES AE UBL kz Figure 1 24 Aud
132. uetooth RF module and Antenna Figure1 9 shows the bluetooth system architecture in the U250 KU250 2 4 hn mmm EO lm BlueQ Interface Part MSM6245 r SYNC DET IX EN TX I SEST ii SBST I BB TX BB 134 M BT DATA y lt SBCK 1 SEDIT 12 SBDT 16 da LIE RH REGERE EEE HG Bluetoot Part baseban i REF gt BT CLK I XTAL IN 7 LDO Part 4 1 s a r DIDI EE I 0 MSMP GND Part i 1 f VDD BAT VDD A N E Figure1 9 Bluetooth system architecture 33 3 TECHNICAL BRIEF 3 BB Technical Description 3 6 Digital Baseband DBB MSM6245 3 6 1 General Description A Features MSM6245 Support for multimode operation tri band WCDMA UMTS quad band GSM GPRS EDGE Support for WCDMA UMTS uplink data rate up to 384 kbps High performance ARM926EJ S running at up to 225 MHz ARM Jazelle Java hardware acceleration for faster Java based games and other applets e QDSP4000 high performance DSP cores Integrated Bluetooth 1 2 baseband processor for wireless connectivity to p

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