Home

LG KG270, MG160 Service manual. www.s

1. 1 2 3 5 7 m n 5 16 RECEIVER 3 wd 2 768KHZ CRYSTAL 3 5858 Bes ag 32 768 8 29 2f 55 h 100 li TPOTST recover R196 KG278 MG160b KG275 1 SURY0013001 al R197 KG270 2 5 T 32 768KHz R198 MG160a 5 lali vare 8 8 EE aL al aL aL dem R199 Ta 21 1 5 5 I zp BATION c R196 mur mo SES s M A FF B o NA NA NA dar 213128181828 12518 olls m 1808 B282205882822z 322205952 BESSER Ten SPEAKER AMPLIFIER SPEAKER 888 85 655 855 4235 FERRE eee HV T77777 8282833 225524882 5500 8888 mue 5655898 882588958 55 5 gt gt 72888 xox 49 ni jp Susp BK H xit U100 NCP2B90AFCT2Q 1103 D KEY OUT2 REX R104 i D D KEY oura KPa AB DCS PCs OUT m i INP KEY OUT 20K E m ouk admis
2. n vear NOT MOUNTED NI s VIBRATOR Ted SIM CONNECTOR VRAT MAIN MIC 2 ono son E moo vour los d 1 MEMORY u Tum 1301 57101032 40 2V85_VSIM vm CN300 mo 5 DATA Dat p 5 ae sad Pot DATAO2 87 ADDS 238 4 2012 DATAGS RE 000 i 8 E Losos paos Das as ADpos F DATAOS as 222 vcc 22 DATAS a a pd qmm DATAOS Dos ri p 5 Gua SEIS 2P DATAO9 00 venator 2 puri Bono AR p TE fy 2508805 lt lt DATAT 2 ADD13 8 H DATA12 238 8 4 DATATS pata ADDIS iras anl DATA14 ais 88 ADD16 4 DATAIS pais E ADDIT gt gle iT Am ADD18 S H vecr ADD19 B 28 s vecs Aonar ava 4 S F300 Vss1 we 8 8 E ava iss ve 83 wen cif or 271 EL cw 818 cess 91 sin RFU2 ceas 85 di 2471 mv Bv o nv py Acc I read REMOTE POWER BEI 10 R317 47 id 5318 RPWRON gt gt SHON PWRON AUXIN Ba SE EAR MIC CONNECTOR 92 need to check resister value s gt FM_ANT voar uot CN3
3. NA NA 21 p ss 885882885 Rito 666666666 0 Lens low pP TR Waveform Check Control Signals Check Signals are Normal ULC2 U102 PAM Control Signal is OK See next page to Paon amp BS ASM check ASM amp Mobile SW Circuit 51 4 TROUBLE SHOOTING TX Trouble TEST POINT CIRCUIT TP400 TP401 TP402 403 TP404 TP405 9 9 9 9 R400 NA R401 0 8 1 L400 2 2nH L401 22nH d lt 5 c Rem 21401 1 E Gi ANT 4 410 TE FL400 _ LMSP2PAA 575TEMP IN GSM1800 1900TX 1 GSM1800 1900RX VC GSM850 900TX VC GSM1800 1900TX vers 3 7 5 GND1 GSMB850 900TX p P GND2 GSM850_900RX 10 H 2 7V GSM900 TX DCS1800 TX GSM800 RX DCS1800 RX VC1 2 7V L L L L 52 4 TROUBLE SHOOTING RX Trouble TEST POINT CHECKING FLOW Check Pin 1 2 of SW400 with RF Cable Replace Mobile SW SW400 Signal is OK Yes Check Pin 1 2 Control Signal is Check ULC2 OK U102 3 7 Signal is Replace ASM normal FL400
4. ADIO SH N 02 E ooer R199 00 MTA 6 9 5 8 94 KG270 MAIN SPFY0144601 1 1 BOTTOM 9 ENGINEERING MODE 9 ENGINEERING MODE 9 1 About Engineering Mode Engineering mode is designed to allow a service man engineer to view and test the basic functions provided by a handset 9 2 Access Codes The key sequence for switching the engineering mode on is 2945 Pressing END will switch back to non engineering mode operation 9 3 Key Operation Use Up and Down key to select a menu and press select key to progress the test Pressing back key will switch back to the original test menu 9 4 Engineering Mode Menu Tree ENGINEERING MODE 1 BB TEST 2 Model Version 3 Eng Mode 4 Call Timer 5 Factory Reset 6 MF Test 95 9 ENGINEERING MODE BB TEST 1 Backlight 1 Backlight On 2 Backlight Off 3 Backlight Value 2 LCD 1 LCD Color 2 Contrast 4 Black 6 Auto LCD 3 Battery Info 4 Vibrator 1 Vibrator On 2 Vibrator Off 1 Audio Test 2 Close 6 FM Radio FM Radio function is not supported 96 9 ENGINEERING MODE 9 4 1 BB Test 9 4 1 1 Backlight backlight on LCD backlight is off Q backlight off LCD backlight is on backlight value LCD backlight brightness is controlled by 20
5. i Ba g ag 108 11 STAND ALONE TEST 11 STAND ALONE TEST 11 1 Test Program Setting 11 1 1 Set COM Port 11 1 2 Check PC Baud rate 115200 11 1 3 Confirm EEPROM amp Delta file prefix name 7 Be sie ti 11 1 4 Click V24AT ON and then Update Info for communicating Phone and Test Program 7 44 ee Phone Teel ULC Infineon mE LEE ge gt Not Connected orem gt Gs u uso germ CROSSES frau 11 io X p Sue Hr re 2 109 11 STAND ALONE TEST wow mo ziz Connected frau fT to open Seb Se I Dii Mine Bre L EN Cow 11 1 5 For the purpose of the Standalone Test Change the Phone to ptest mode and then Click the Reset bar 11 1 6 Select Non signaling in the Quick Bar menu Then Standalone Test setup is finished Phone Teel ULC Owl 4 eee t a Change ptest mode fares 110 11 STAND ALONE TEST 11 2 Tx Test 11 2 1 Click Non signaling mode bar and then confirm OK test in the command line ee E I jum ne er 6 A a lt Rom Bre
6. 20000401 0 ohm 1 16W J 1005 R TP 410 5 400 0100 HIP MAKER 20000401 0 ohm 1 16W J 1005 R TP CONN RF SWITCH ENWYO0004501 SMD dB H 3 6 Straight type 05 0176402 CSP 9 PIN R TP Audio Power Amplifier U101 U102 U200 EUSY0328601 DFN 10 PIN R TP Li ion charger IC 1 10Pin 3x3 DFN TSOPJW 12 12 PIN R TP 3PORT Charge Pump AAT2154 EUSY0238702 Low cost version IC 05 0317401 189 PIN R TP E Gold voice EEBP EE U301 U302 0303 EUSY0328001 56 PIN R TP 32Mb 4Mb 200 nm MirroBit 05 0320801 QFN 20 PIN R TP FM Tuner Chip 3 3 0 57 Pb Free EUSYO142501 8 PIN R TP Dual 105mW Headphone Amplifier U304 HVSOF5 5 PIN R TP 150mA CMOS LDO WITH OUTPUT Eu USE CONTROL 2 8V EUSY0300101 WQFN 10 PIN R TP Small package Dual SPDT analog Switch PB Free SMPY0014001 35 5 dBm 56 A dBc dB 6x6x1 15 SMD Tri Band X101 SAFD PCB ASSY MAIN SMT TOP 032768 MHz 20 PPM 12 5 pF 65000 ohm SMD EXXY0004602 6 9 1 4 13 26 MHz 10 PPM 8 pF 40 ohm SMD 3 2 2 5 0 6 12ppm at 30 C 85 C CO 1 0pF C1 3 6fF 26 10PPM 8 SMD EXXY0018404 SAFD0085602 C102 C103 L100 CAP CERAMIC CHIP 0000120 39 pF 50V J NPO TC 1005 R TP CAP CERAMIC CHIP 0000120 39 pF 50V J NPO TC 1005 R TP
7. 11 2 2 Put the number of TX Channel in the 11 2 3 Select TX in the RF mode menu and PCL in the PA Level menu 11 2 4 Finally Click Write bar and try the efficiency test of Phone 1 i OIE m zu is ms a 4 ame riri ini Ii n 111 11 STAND ALONE TEST 11 3 RX Test 11 3 1 Put the number of RX Channel in the ARFCN 11 3 2 Select RX in the RF mode menu 11 3 3 Finally Click Write bar and try the efficiency test of Phone Peer GEE rere rum le De ws GEO E oj ga DIS LI E C Er rere Ges ted TAF E RN UA xd famed Pag rly RA iura PL N Ch ies EX EFS nie i b w PL n E Eum b nae Beeren t gt Peal a r 2 Cen pim m re PI icq Wm tms et 112 12 EXPLODED VIEW amp REPLACEMENT PART LIST 12 1 EXPLODED VIEW 1 COUVER ASS Y FRONT 113 2 SCREW MI4 4 GMEY0002001 KG278_WINDOW_LCD MWAC0077001 Sa KG278_TAPE_WINDOW 0065701 KG278_TAPE_PROTECTION_WINDOW 0168901 0016401 K6218 SDSR 1130L 032 REC
8. 42 WLLED DRV F TRIG_IN TRSTN RADO EN Fon FM RADIO avevo TRIG OUT 215 of TRIG OUT PMB7880 ssrour 9 runs FOR FM RADIO TRIG IN RESET FE 4 9 _ reser of NILN FOR CHARGING IC 0102 sare RES 7 Wana Wow 16 47 PWRON 2 9 FOR 28 VMEM SELECTION mo NS ES 32KOUT NA ES NA STATUS ek di DATAO Di DETECT DATA02 tours 87 ss B Loves jm DATAGS T OUT4 FM 32K FOR FM RADIO FAULT VSEN TEMP w NA Tours wee sin 5 DATAOS 05 Toure 88 ver cH STATUS status IRE DATA06 Ds TXON PA NA B TEST cias NN tov cm Vine M en 3 ono E ex c DATATO BHEN PGND DATA11 wr 2 WR WR 128 28124 R125 DATA12 85 DATAGS cs ME ie suse DATA14 CST_N csin au E DATAIS con A100 ADD00 Et ADD21 UART PORT S ADDS ADDS m 2 y no 0 2 Am ADDIT 0005 5 ADI UFLS ADDO06 z A15 ADD15 sw 5 y RPWRON ADDO7 5 0014 D VBAT vea 5 8 ADD13 D 5
9. 2 32329 2 lt orava ni 88385 ezeo FI 2 E 5 9 gt 5 olavd ez 5 8 22 455 395 95 219 52 OIQVH lt LNY 42 3 TECHNICAL BRIEF 3 15 1 FM Tunner The Si4702 patented digital low IF architecture reduces external components and eliminates the need for factory adjustments The receive RX section integrates a low noise amplifier LNA supporting the worldwide FM broadcast band 76 to 108 MHz An automatic gain control AGC circuit controls the gain of the LNA to optimize sensitivity and rejection of strong interferers For two wire operation a transfer begins with the START condition The control word is latched internally on rising SCLK edges and is eight bits in length comprised of a seven bit device address equal to 0010000b and a read write bit write 0 and read 1 The device acknowledges the address by setting SDIO low on the next falling SCLK edge For write operations the device acknowledge Is followed by an eight bit data word latched internally on rising edges of SCLK The device always acknowledges the data by setting SDIO low on the next falling SCLK edge An internal address counter automatically increments to allow continuous data byte writes starting with the upper byte of register 02h followed by the lower byte of register 02h and onward until the lower byte of the last register is reached The internal address counter th
10. Sex 823 Dai k p R318 4 22 EAR MIC C318 C319 NA ou CONNECTOR AUXIP C320 0 1u z 8 FM ANT 8 2 a L300 NN CN301 270nH Tes 2v8 VIO 2 8 A VOHARGE deii 10p AA 558 5 828 FOR RADIO H9 FOR RADIO FB300 1800 828 2 AUDIO C323 1 10u FB301 1800 ou T 3 4 EAR L AUXOP FMR 5 EAR R TxD 5 6 TXD RXD amp 7 RXD gg re TUUS 55 8 JACK_D 8 8 9 10 BATT d 11 MERE RPWRON 10 11 R ON 8 8 100K 12 13 CHG 9 2 DSR 19 Fete 2 104 56p 2012 9 10V Z Y5V 50V J NP 22 HSEJ 18S04 25R VBAT R332 0 _ t CN302 C336 C337 SpT 18 HSBC 3P 58 A1 T Sov I npo ENZY0019901 SOWCNPO TOL 0 25P Figure 3 10 5 Headset interface 36 3 TECHNICAL BRIEF 3 11 Key LED Interface VBAT KEY BACKLIGHT 1u NNN R219 1000hm R220 1000hm R221 1000hm R216 1000hm R217 1000hm R218 1000hm C222 10V K X5R 10V K X5R LD200 LEBB S14H LEBB S14H LD203 LEBB S14H KEY BACKLIGHT Figure 3 11 Key LED interface This handset has 6 LEDs that illuminates blue color Control signal is controlled by EGold voice with PWM and handset has 3 methods ON OFF and Dimming 2 37 3 TECHNICAL BRIEF 3 12 Vibrator Interface V
11. 0086801 MCCZ0024001 MOLD Urethane Rubber 5185 MCJNOO COVER REAR 4 ENZYOO CONNECTOR ETC ENZY0019901 3 PIN 3 mm STRAIGHT MLABOO LABEL A S MPBNOO PAD SPEAKER 0065001 MOLD PC LUPOY 5 1004 MLABO0000601 HUMIDITY STICKER Without Color 0039901 MBJA00 BUTTON DIAL MBJA0023209 GMEYOO SCREW MACHINE BIND MCCF00 CAP MOBILE SWITCH GMEY0002001 Without COMPLEX empty Color 1 4 mm 3 mm MSWR3 BK HEAD t 0 6 HEAD 42 7 MCCF0042301 MOLD Urethane Rubber 51854 MLAKOO LABEL MODEL ADCA00 DOME ASSY METAL MLAZOO 0006901 Without Color Without Color ADCAO0063901 70038301 Label 4 Array CAN SHIELD Without 0016401 Color PRESS NS 0 2 115 12 EXPLODED VIEW amp REPLACEMENT PART LIST Main component Note This Chapter is used for reference Part order is ordered by SBOM standard on GCSC Level Location No Description SJMYOO VIBRATOR MOTOR VIBRATOR MOTOR Part Number Specification SJMY0007903 3 V 0 85 A 4 8 Height 5 8T Cylinder 3V 11000 SJMY0007904 3 V 1 A 4 8 height 5 8mm 3 11000 SNGF00 ANTENNA GSM FIXED 3 0 2 0 dBd internal GSM900 1800 DUAL 2 0 50 SNGF0022402 3 0 SUSYOO SPEAKER SUSYO0025801 8
12. O OC CO oO EarMic Type Provides optionally only for supporting FM radio function earmic w music remote controller Neck strap LCD Cleaner Holster Data cable CD RS232 cable Holster charger x x O gt lt gt lt gt lt gt lt Standard battery Back up and Holster function additional standard battery Extended Battery Desktop Charger Cigar Lighter Adapter Portable Handsfree Bluetooth headset Bluetooth stereo earset controller Car kit Leather Pouch Stylus Pen Compass gt lt gt lt X X 13 3 TECHNICAL BRIEF 3 TECHNICAL BRIEF 3 1 Digital Main Processor PMB7880 E ze C 9 Te E omm Ast UI S ae mu e 2 OU MW Ad 0928 Ast Ast AS WOY o zs tins cuan rs Figure 3 1 PMB7880 FUNCTIONAL BLOCK DIAGRAM 14 3 TECHNICAL BRIEF 3 1 1 Overview of E GOLDvoice The E GOLDvoice is a GSM baseband modem including RF transceiver covering the low bands GSM850 GSM900 and high bands GSM1800 GSM1900 bands E GOLDvoice is Dual Band therefore it supports by default a low high pair of bands at the same time 1 GSM850 GSM1800 2 GSM850 GSM1900 3 GSM900 GSM1800 4 GSM900 GSM1900 The E GOLDvoice is o
13. ergs m2 ncs E ps 12222229 An pn 1 ddddddadaddagdagddeddes oan S 22222222 B88958909982990 899212992 mus Sel wey 5 FUSE ri E amp e 66666808 5 ds e i 12 529 Ie 8l Section Date Sign amp Name Sheet vaar BAT 5 8 Sheets 19 nne GB3 RADIO 9 Designer Rs SANG YOEN LEE SPFY0144601 vaardvaar genot 1 4 lo e D 999999999 Checked DRAWING BB Approved DRAWING Iss Notice No Date Name LG Electronics Inc NO VER 1 1 1 2 3 5 7 s LG 42 A 5505 10 01 89 LG Electronics Inc 7 CIRCUIT DIAGRAM o VRTC END 5 200 END KEY O sw201 1 sw202 2 sw203 3 sw204 LEFT sw205 MENU R201 KEY_OUTI lt lt 680 C205 F na Sw206 SW207 5 SW208 6 sw209 Up SW210 SEL TO FO FO Q ro Q9 R203 KEY_OUT2 lt 680 16206 F sw211 SW212 SW213 214 SW215 7 8 9 RIGHT SEND Q4 R204 KEY_OUT3
14. 109 111 11 3 RX Test 112 12 EXPLODED VIEW amp REPLACEMENT PART LIST 113 12 1 Exploded View 113 12 2 Replacement Parts 115 12 3 124 1 INTRODUCTION 1 INTRODUCTION 1 1 Purpose This manual provides the information necessary to repair 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 this product is immune from the above case but will prevent unauthorized use of common carrier telecommunication service of facilities accessed through or connected to it The manufacturer will not be responsible for any charges that result from such unauthorized use B Incidence of Harm If a telephone company determines that the equipment provided to customer is faulty and possibl
15. J Yes Mobile SW amp ASM is OK Check Antenna fet 1225014 25 25 0 5 27148 Acqs 1 VC1 High 2 54 260 N jul 2006 10 12 25 53 4 TROUBLE SHOOTING 4 3 Power On Trouble TEST POINT Check Points Battery Voltage Need to over 3 35V Power On Key detection PWRON signal Outputs of LDOs from EGV LDO VOLTAGE PART V BUF 3 2V C101 V MEM 2 8V C109 V IO 2 8V C107 V SIM 2 85V C108 V ANA 2 5V C113 CIRCUIT 3V2_VBUF lt gt gt 542 o o N e olnlololgl n oe 2S aja a 2 5 5 gt ojx ojojoj gt j gt 115 1608 No lt Nr LL a 52222295526 2 RO 29 lt lt Feet lt lt lt lt D12 16V K X5R gt 5 lt 5666 2222 22282588 gt 4 gt gt A9 n gt aoa gt gt XOX XO 54 4 TROUBLE SHOOTING Power On Trouble CHECKING FLOW START Check Battery Voltage gt 3 35V Charge or Change Battery Check the contact of power key Or dome switch Push power on key And check the level change of PWRKEY heck the voltage o The LDO outputs at U102 Replace U102 THE PHONE WILL P
16. INDUCTOR CHIP ELCH0004711 22 1005 L101 LD200 LD201 LD202 LD203 INDUCTOR CHIP ODE LED C ELCH0004711 22 1005 EDLHO0006001 ue 1608 R TP Blue SMD LED ene pe enne _ D HIP B 10204 0205 ODE LED CHIP EDLHO0006001 Blue 1608 R TP Blue SMD LED DIODE LED CHIP EDLHO0006001 1608 R TP Blue SMD LED 6 R201 RES CHIP MAKER ERHZ0000505 680 ohm 1 16W J 1005 R TP 122 12 EXPLODED VIEW amp REPLACEMENT PART LIST Level Ed Description Part Number Specification Color Remark R203 RES CHIP MAKER R204 RES CHIP MAKER 20000505 680 ohm 1 16W J 1005 R TP ERHZ0000505 20000505 680 ohm 1 16W J 1005 R TP 680 ohm 1 16W J 1005 R TP 6 R209 CHIP MAKER 6 R211 CHIP MAKER 6 R212 RES CHIP MAKER 20000505 680 ohm 1 16W J 1005 R TP 20000505 20000505 680 ohm 1 16W J 1005 R TP 680 ohm 1 16W J 1005 R TP 6 R213 CHIP MAKER 6 R214 CHIP MAKER 6 R215 RES CHIP MAKER ERHZ0000505 680 ohm 1 16W J 1005 R TP 20000505 HY0003301 680 ohm 1 16W J 1005 R TP 100 ohm 1 16W J 1005 R TP R216 R217 RHY0003301 100 ohm 1 16W J 1005 R TP R218 RES CH RHY0003301 100 ohm 1 16W J 1005 RATP 6 R219 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP
17. 1608 S o gt gt 2 5 IRE iE p C110 u zo E SES cl gt 2 gt 21 1109 1 e 18 amp L iS o elo o 212 gt C115 1608 co QO 10 st N UN 114 mul Nr CO QN 92299500 99 gt 42 522552959 d 000m00m0o00mp s52aff mt amp rZ29 2t cuguut ERE 22222225 Bj S nem 1I D12 16V K X5R gt REXT gt gt gt gt 22528288 gt Ad gt gt 9 5 gt gt gt XOX Figure 3 14 1 Power Block interface The E GOLDvoice integrated power management unit PMU supports direct connection to battery DCB That means all supply voltages needed are generated on chip with integrated linear voltage regulators The input of these linear voltage regulators is the battery voltage The external memory and SIM card supply is provided by the on chip voltage regulators Table 144 is an overview of the internal generated supply voltages The integrated power management also provides the control state machine for system start up including start up with discharged batteries trickle charging and system reset control After system start up several methods are implemented for active and idle power saving 40 3 TECHNICAL BRIEF Output Voltage V Output Current mA
18. 5 Dcs sek Py 151 m B ker maa 575 RXN s0 speaker maa eee 0119 8106 e a 5080025801 ON BOARD ARM9 8 ETM INTERFACE KEY INA FXi2X GSM_AXN NX3225SA W 188 34 7 107 RADIO 83x pvPass 4 20K 255 mo ema Me FORFMRADIO pie E mo wvotrace wo E Lovo sei ex y cod cies HS DET ATS DEFAULT_BANDSEL ak S DSR M2 lt TEMP Els e012 T i saak EPA yiwe min an2 4 4 x 5 2 CHG_EN_TEST SSCO_MRST vue E qva 5 NOT MOUNTED Ssco WISR SSCo MTSR FOR LCD SPI INTERFACE Loupe 58 Sek N Gain RURin E FOR SW DEBUGGING NOT MOUNTED LCD RESET DISP REST mia FORM RADIO vmc 22 T NA NA FORFMRADO SOA MICP2 ill be changed to mj fo 42 AUXN Le for mass production H SIM DATA cco MICP1 VINNORP 25 FORFMRADIO ru NT COVZW ES VINNORN ile of SM TRSTn to H topi TDI Qd LOUD SPK EN CCIN REC N T 19 8 zvo VRTC HEADSET RADIO SEL FOR FM RADIO 32 8 co E m CHARGING IC ite Ts Back 52 KEY BACKLIGHT exrasm 10
19. Part Number No Level Description Specification Color Remark 6 C404 CAP CERAMIC CH 0000155 10 nF 16V K X7R HD 1005 R TP C405 CAP CHIP MAKER ECZH0000830 33 pF 50V J 1005 R TP CAP CERAMIC CH 0000113 18 pF 50V J NPO TC 1005 R TP CAP CHIP MAKER ECZH0000826 6 6 C406 6 C407 27 pF 50V J NPO 1005 R TP 6 C408 CAP CERAMIC CHIP 0000155 10 nF 16V K X7R HD 1005 R TP E CAP CERAMIC CHIP 0009505 22 pF 25V J NPO 0603 R TP CAP CHIP MAKER ECZH0000826 6 C410 6 C413 27 pF 50V J NPO 1005 R TP 6 C414 CAP CHIP MAKER ECZH0000826 27 pF 50V J 1005 R TP I C417 CAP CHIP MAKER ECZH0000826 27 pF 50V J NPO 1005 R TP 6 6 C418 CAP CHIP MAKER ECZH0000826 27 pF 50V J NPO 1005 R TP 6 C419 CAP CERAMIC CHIP 0000104 3 pF 50V C NPO TC 1005 R TP 6 C420 CAP CERAMIC CHIP 0000104 pF 50V C NPO TC 1005 R TP C422 CAP CERAMIC CHIP 0000104 6 C421 CAP CERAMIC CHIP 0000104 3 pF 50V C NPO TC 1005 R TP ERN 6 pF 50V C NPO TC 1005 R TP CN200 CONNECTOR FFC FPC 6 CN301 CONNECTOR I O ENRY0006401 D ODE SWITCHING EDSY0005301 ENQY0013801 13 PIN 0 3 mm STRAIGHT 0 30MM FPC STRAIGH SMD RATP empty SC 70 80 V 0 1 A R TP LTER BEAD CHIP SFBH0008105 LTER BEAD CHIP LTER BEAD CH
20. ren 1 gt 2 _ CONNECTOR x z seg FOR RADIO 300 1800 8 8 2 AUDIO C323 10 FB301 AUXOP FML 4 EAR aou rr 5 EAR R TXD rm X hs_pET 8 JACK D TII 9 10 BATT STET RPWRON lt 11 8 8 12 13 CHG TEMP lt 60VCNPO TOL 0 25P 75 C336 1 C337 T T mE y ENZY6019901 HSBC 3P 58 A1 4 TROUBLE SHOOTING CHECKING FLOW START Does the audio profile of the phone change to the earphone mode No No heck the voltage Leve CN301 8 Low Re solder CN301 or Change another Ear Mic set and Try again Replace U100 or Change Board Go to MIC Trouble section Check the signal Level Re solder causal at AUX_MIC component Is it about 1 2 1 5V DC CN301 with a few tens mV Does waveform at U102 EPPA1 fluctuate Change another Ear Mic set and Try again ves Does waveform at CN301 4 and CN301 Ne Replace U100 or Change the board Yes Re solder causal component CN302 C322 etc Change another Ear Mic set and Try again 76 4 TROUBLE SHOOTING 4 14 Charging Trouble TEST POINT Check Points Connection of TA check TA voltage 5 2V Charging Current Path component voltage 1 Charger 5 IC U1
21. Comment 2 0 4 Used for the real time and digital PMU supply 1 2 1 5 Used for the core supplies MCU and DSP via switch 1 8 2 85 Used for the I O pad supply and for example the display 25 Used for the crystal oscillator supply 2 5 Used for the external memory supply voltage can be configured during startup Used for analog audio and baseband processing and headset driver LSIM 1 8 2 85 Used of the SIM card supply LBUF 2 6 2 8 3 0 3 2 Used for the loudspeaker and earpiece driver LRFRX 2 5 Used for the RF RX part LRFTRX 1 5 Used for the RF TX TX part Figure 3 14 2 EGold Voice PMU LDO output voltage selection LD1 LIO LSIM LBUF output voltage programmable by software LMEM output voltage is selectable by pin configuration upon startup Active and idle power saving options The flexible clock switching options allow minimizing the power consumption during the operation phases of the E GOLDvoice Current consumption during the standby mode is minimized by reducing the clock to 32 kHz and Switching it off for most of the device In addition the power supply for the TEAKLite ROM is switched off and the controller RAM is switched to a power saving mode Start up and Reset Control State Machine Features Power up upon battery insertion push button alarm charger connection Detection of battery exchange or re insertion Complete start up sequence management System turn on syst
22. Keypad and display backlight supported Receiver e Constant gain direct conversion receiver with fully integrated blocking filter Two integrated LNAs No need of interstage and IF filter Highly linear RF quadrature demodulator Programmable DC output level Very low power budget gt Transmitter Digital Sigma Delta modulator for modulation typical 163 5 dBc Hz 20 MHz Single ended outputs to PA 3 5 dBm Very low power budget gt RF Synthesizer e ZASynthesizer for multi slot operation Fast lock in times lt 150 Integrated loop filter RF Oscillator Fully integrated RF VCO gt Crystal Oscillator Fully digital controlled crystal oscillator core with a highly linear tuning characteristic 16 3 TECHNICAL BRIEF gt Mixed Signal and Power Management Unit DC DC boost for voltages up to 15V for driving White or Blue LEDs 8 Ohm loud speaker driver 250 350mW 16 Ohm earpiece driver 32 Ohm headset driver 4 measurement interfaces PA temperature battery voltage battery temperature and ambient temperature Differential microphone input System start up circuitry Charger circuitry for NiCd NiMh and Lilon cells Integrated regulators for direct connection to battery 17 3 TECHNICAL BRIEF 3 1 3 GSM System Description The E GOLDvoice is suited for mobile stations operating in the GSM850 900 1800 1900 bands In the receiver path the ante
23. Note
24. from 100 to 0 9 4 1 2 LCD LCD color This menu includes 5 color menu and automatic color change 5 color menu is Red Green Blue Black and White Q LCD contrast This menu displays a contrast value and LCD maker 9 4 1 3 Battery Info This menu displays the information of battery as example battery voltage level and temperature In line 2 battery voltage level is displayed with average and instant value In line 3 battery temperature value is displayed but this value is ADC value In line 4 Icon number of battery voltage is displayed 9 4 1 4 Vibrator This menu can control vibrator on and off operation 9 4 1 5 Audio This menu can control MIDI operation 97 9 ENGINEERING MODE Model Version 9 4 2 Model Version This menu displays the Model software version 1 Serving Cell 2 Neighbour Cells 3 Reset Information Eng Mode 98 9 ENGINEERING MODE 9 4 3 Eng Mode 9 4 3 1 Serving Cell This Menu dispays the the informations of Serving Cell environment For example ARFCN RF Level etc ARFCN Absolut Radio Frequency Channel Number Frequency Number of Serving Cell while Idle mode RxLev RX level of Serving Cell while Idle mode C1 C1 Value of Serving Cell This value will be used to decide cell reselection C2 C2 Value of Serving Cell This value will be used to decide cell reselection BPM Paging period of Serving Cell ARFCND Absolut Radio Frequency
25. 16 poly Connect 18 Pins included Earphone Jack 2 PERFORMANCE 2 2 S W Features Function Detail Item Specification Operating System OS Data Circuit Packet Connectivity Infrared IrDA Bluetooth USB USB Mass storage RS232 Voice Function Voice Recording Voice Command Answering machine User Memory TBD Under 300KB 0 0 X X X X X 0 X X X X MMS Pictures Still Image amp Moving Image MP3 Music Contents Java Contents Wallpaper 3 bitmap images Ringtone 10 MIDI Ringtones external memory microSD Camera Camera Module Audio Voice Codec FR HR EFR AMR NB AMR FM Radio x Integrated handsfree speaker Speaker phone mode 2 PERFORMANCE Function Detail Item Specification Display RSSI 6 level Battery Level 5 level RTC Multi Language Basic English Max 4 language of Latin 2 or 3 language of etc Quick Access Mode PLMN Service Indicator Dimming Clock Dual Clock Local Time Selected Area Time Normal Features Last Dialed Number 10 Last Received Number 10 Last Missed Number 10 Scratch Pad Memory Call Call Waiting Manage ment Call Swap Call Retrieve Auto Answer Automatic Redial Calling Line dentification Full Call divert Speed Dia
26. 4 TROUBLE SHOOTING 4 1 RF Trouble REFERENCE PART Description PAM Power Amp Module DCXO 26MHz ASM Antenna Switch Module Mobile Switch RX SAW Filter 44 4 TROUBLE SHOOTING RF Trouble TEST POINT SW400 CIRCUIT DIAG RAM TP401 TP402 TP403 iD Antenna Matching component Mobile SW Coupling Capacitor 45 4 TROUBLE SHOOTING CHECKING FLOW START Check Antenna PAD amp Intenna Contact Check Matching component Check Mobile SW Download And Calibration Change PCB 46 NG NG Change Antenna Resolder component Change SW400 RX Trouble TEST POINT 47 4 TROUBLE SHOOTING CHECKING FLOW Setup Test Equipment Cell Power 74d Bm GSM850 CH190 PCS CH660 Check point DCXO X101 Check point mobile SW amp ASM amp SAW Filter SW400 F Re Download S W amp CAL 4 TROUBLE SHOOTING RX Trouble 1 Checking VCTCXO Circuit TEST POINT FLA401 CIRCUIT X101 NX3225SA NX3225SA W 188 34 7 48 CHECKING FLOW Is the waveform of Pin3 similar to DCXO X101 Waveform Replace X101 Yes DCXO Circuit is OK See next page to check PLL Circuit Waveform mesa CIN 2 68 histogram Vot 22 jul 2006 11 21 49 4 TROUBLE SHOOTING RX Tr
27. 9 1 Download Setup 82 5 DOWNLOAD 5 2 Download Process 5 2 1 Download step 1 4 Start or Stop download Selected configuration DLL file File name donwloading File F Exit X End program Setting S Configuration configuration download condition DLL SW files and etc About H gt MultiGSM Provide version information First select Setting Menu 83 5 DOWNLOAD 5 2 2 Download step 2 onfiguration CA GSMULTHffModelstifIKFINEONSHK 2709270 065ooo dll al lw Baud wo em Dum 4 Select a appropriated DLL file You must select KG270_xxxxxx DLL file Select configuration file You must select cmd m0 file Select download speed You must 460800 System supports maximum 460800bps D Select port select start and end port be operated 84 5 DOWNLOAD 5 2 3 Download step 3 2 70 270_ dll 130 mots fls bin 4 Select files downloaded KG270 have 4 files eep fls dffs and cust But You must not select eep file 85 5 DOWNLOAD 5 2 4 Download step 4 4 Start download and stop download next step If configuration is finished then push start button and then button is changed to STOP Turn on power of multi download and connector phones If do
28. Channel Number Frequency Number of Serving Cell while Dedicated mode RxLf Full RX level of Serving Cell RxLs Sub RX level of Serving Cell RxQf Full RX qual of Serving Cell RxQs Sub RX qual of Serving Cell DSC Downlink Signal Counter RLL Radio Link Loss Counter Chtyp Channel type of Serving Cell Chmod Channel Mode of Serving Cell DTX Discontinuous Transmission mode of Serving Cell MCC Mobile Country Code of Serving Cell MNC Mobile Country Code of Serving Cell LAC Location Area Code of Serving Cell CID Cell ID of Serving Cell BSIC Base Tranceiver Station Identity Code of Serving Cell TxPwrMax 5 TXPWR MAX CCH value of Serving Cell RxMin RXLEV ACCESS MIN value of Serving Cell C2vld C2 VALID value of Serving Cell CRoff CELL RESELECT OFFSET value of Serving Cell TMPoff TEMPORARY OFFSET value of Serving Cell PTime PENALTY TIME value of Serving Cell RF Number of frequencies in MA Mobile Allocation T3212 Periodic Location Update Timer TxPwrLev Current Tx power of MS ACC Access Control Class Band Current Band Information TA Current Timing Advance Cipher Cipher mode of Serving Cell Cell Bar Quality flag of Serving Cell CBA Cell Bar Access flag of Serving Cell 99 9 ENGINEERING MODE 9 4 3 2 Neighbour Cells This menu displays the informations of Neighbour Cells ARFCN Absolut Radio Frequency Channel Number Frequency Number of Neighbo
29. KNahs olqavd ON E olavu enn 193130 Olavu ni ni 124524 Wea m 7 ed yng8 300N 1N33302 Y JnoA NIA 9 2 E 8198 Amis Jr lt Na AdJHMLSJSCHS voen OIQvH AYSA eu 4 yy ww secu nro oiavu ova eaz 200 o isu _ isu 15 Qn x inou 918 2005 ino zoen 1 5 door 1869 0 5 3320 Olavu aL 88935 6207 oiavu OlQvH OIA BAz 8 NaHS NaHS Olavu olavu Joalaq ovy lt eeu 80 4 TROUBLE SHOOTING Checking Flow Connector Headset and Turn on Radio and tuned channel U304 PIN1 High U304 PIN4 2 8V Check LDO Power Change U304 Check R336 R337 338 Control Signal Check I2C signal and 32K clock Change PCB OK Check Audio Output R329 R330 Change U302 C332 C333 Check Audio Output Of Amplifier R327 R831 Change U303 OK Change PCB 81 5 DOWNLOAD 5 DOWNLOAD 5 1 Download Setup Configure system like figure 5 1 Figure
30. VRTC END SEM END KEY O swo 1 202 2 sw203 3 sw204 LEFT SW25 1 3 1 Q4 R201 KEY OUT lt lt 680 6205 sw206 SW207 sw208 sw209 SW210 ra AS SUP SEL KEY OUT2 lt lt AAA 680 6206 F 211 59212 Sw213 SW214 5215 ra E ra co RIGHT SEND 04 I 9 KEY OUT3 lt lt AN Tr SW216 SW2170 SW218 SW219 DOWN L1 i L1 R209 KEY OUTA lt C215 c216 C217 C218 219 C220 NA NA NA NA NA NA Kex R211 680 R212 680 KEY_IN1 gt R213 680 KEY IN2 gt R214 680 KEY IN3 gt R215 680 KEY INA gt 60 4 TROUBLE SHOOTING Checking Flow START Check Metal Doom Change Metal Doom R201 R203 R204 R209 R211 R212 R213 R214 R215 Check soldering status Resolder component Change PCB 61 4 TROUBLE SHOOTING 4 7 RTC Trouble CIRCUIT Check Points 32 768KHz is right clock The power of RTC is right SWITCH ON N7 PWRON OSC32K R5 32KOUT F32K Ba 32KIN CLKOUT CHG_STATUS X100 MC 146_12_5PF 32 768KHz J o o 62 W LED VBAT 4 34 gt gt W LED FBN 4 TROUBLE SHOOTING CHECKING FLOW START Is the frequency Replace X100 and try again about 32Khz Is V
31. zm 1588 0 17 zm ME zd 2005 02 18 10 CALIBRATION 10 2 3 Click SETTING Memu KG278 7 10 2 4 Setup Ezlooks menu such as the following fugure Bin xx H K Off Line 105 10 CALIBRATION 10 2 5 Setup Line System menu such as the following fugure Line men KG278 Start Setting Operation Mode Adjust the number of times 10 2 6 Setup Logic operation such as the following figure e Cal Hork KG278 Start Im m Operation Mode 1 By Pass not control by GPIB Setup UART Port PWR Power Supply CELL Call Test Equipment 106 10 CALIBRATION 10 2 7 Select MODEL 10 2 8 Click START for RF calibration Off Line manie nni 10 2 9 RF Calibration finish Lire Marus 107 10 CALIBRATION 10 2 10 Calibration data will be saved to the following folder LJ dent Em BED van XR er a COMCHLOSPUNTIRE DHRE iba a LI ru LG _ A SOOO 29 HB 19 2000 61 55 zn 20041 2 B GEI MO xD eS BID 4 E xd BOCA 11 ux i SS ina _ RHE zd BE uk i32 038 A AH
32. 004904 1 uF 6 3V X5R 1005 R TP 6 C201 CAP CERAMIC CHIP 0004904 1 uF 6 3V X5R 1005 6 C203 CHIP MAKER ECZH0000826 27 pF 50V J NPO 1005 R TP 6 C204 CHIP MAKER ECZH0000826 27 pF 50V J NPO 1005 R TP 6 C210 CHIP MAKER ECZH0000826 27 pF 50V J NPO 1005 R TP 6 C211 CHIP MAKER ECZH0000826 27 pF 50V J NPO 1005 R TP 6 C221 CERAMIC CHIP 0004904 1 uF 6 3V X5R 1005 6 C222 CHIP MAKER ECZH0001215 1 uF 10V X5R 1005 erem _ 6 C302 CAP CHIP MAKER ECZH0000826 27 pF 50V J NPO 1005 R TP 6 C303 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NPO TC 1005 R TP peace C305 CAP CHIP MAKER ECZH0000826 27 pF 50V J NPO 1005 R TP C306 CAP CERAMIC CHIP 0000161 33 nF 16V K X7R HD 1005 R TP 6 C308 CAP CERAMIC CHIP 0000120 39 pF 50V J NPO TC 1005 R TP C309 CAP CERAMIC CHIP 0000161 33 nF 16V K X7R HD 1005 R TP C310 CAP CERAMIC CHIP 0000115 22 pF 50V J NPO TC 1005 R TP 117 12 EXPLODED VIEW amp REPLACEMENT PART LIST Location Level No Description Part Number Specification Color Remark 6 C311 CAP CERAMIC CH P ECCH0000182 0 1 uF 10V X5R 1005 R TP C31
33. 01 VGHARGE 0 4 21 x Ll FORRADO FOR RADIO __ 1800 8 2 AUDIO AUXOP Sa Lx 300 4 EARL ee RADIO Fun 2 5 EARLR 55 6 TXD ms m 7 RXD 8 JACK D 8 8 19 910 BATT ava T RPWRON 1 xD 11 R ON 8 100K 135 12 13 CHG 8 1 208 RADIO 2 3 com 8 iu 560 8 E mas On C329 C330 295885 Tru 2ve RADIO g 52 ges 719308 HSEJ 18504 25R 555 5 VDD VOUTI gt RADIO sPK L mam dives c FM ANT Sen U302 tour E d us thaws gt bal 13 Fano ROUT vourz spkn 4 5 702 16 E 1 3 5 4 5 er o E ej To FM RST E f sveass anp TEMP e 9 ej 8 5585 RADIO SHDN gt SHDN 1 989 ME em can BARD i ap HSBC 3P 58 A1 mass Lowy T ovp ENZY0019901 2V8 RADIO 100 Sov CNPO TOL 0 25P 1 FM SCL y FM SDA lt lt ne __ gt gt NEASS223BMNR2G ae 28 RADIO wo RADIO SPK 1 RADIO SPK R gt ies cw gt gt AUXOP U304 BH28FBIWHFV AUXOP com m FOR RADIO RADI
34. 01 gt drop VBAT _ C126 5 2V Battery voltage Charging IC CIRCUIT CHARGING IC 2V8 VIO VCHARGE VBAT VCHARGE CHARGE DETECT lt 1u 10V K X5R CHG STATUS 10V K X5R 77 4 TROUBLE SHOOTING Checking Flow START VO Connector CN301 Resolder the CN300 Is well soldered Pin 12 13 VCHARGE Is The Voltage of C126 The is out of order 5 2V Change the TA Replace the The Voltage of C128 U101 Is 2 8V Check the voltage of R124 High or Low Check the U102 The battery may have problems Change the battery Battery is charged Charging is properly operating 78 4 TROUBLE SHOOTING 4 15 FM Radio Trouble TEST POINT R338 R337 R336 U304 P1 U304 P4 ef R327 R331 R329 R330 C332 C333 amp 79 4 TROUBLE SHOOTING CIRCUIT DIAGRAM 136 Olavu 13savaH gt gt Wada Lvdda gt n 5 moet mos gt doxnv Lht Wa doxnv lt HON lt Tus gt gt spe o H OI BAz 9 OI BAz 1001 1 38 eed ureg QNO SSVdAH alo ZNIA ZLNOA 0 INIA al 8 2 Q 6089 W1 2028 92 3559 Seed
35. 1 uF 6 3V X5R 1005 R TP C113 CAP CERAMIC CH C114 CAP CHIP MAKER C117 CAP CERAMIC CH ECZH0001216 C115 CAP CERAMIC CHIP 0005602 2 2 uF 16V X5R 1608 R TP 220 nF 10V X5R 1005 R TP ECCH0000182 0 1 uF 10V X5R 1005 R TP C118 CAP CERAMIC CH 0000182 0 1 uF 10V X5R 1005 RATP C119 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V X5R 1005 R TP NENNEN C120 CAP CERAMIC CHIP 0002101 1 uF 10V 2012 R TP 116 12 EXPLODED VIEW amp REPLACEMENT PART LIST Level edi Description Part Number Specification Color Remark C121 CAP CERAMIC CHIP ECCH0002004 0 22 uF 10V 1005 R TP CAP CERAMIC CHIP 0000182 0 1 uF 10V X5R 1005 R TP CAP CERAMIC CHIP 0000143 1 nF 50V K X7R HD 1005 R TP Dee peo eames rmm mem 6 C126 CAP CHIP MAKER ECZH0001215 1 uF 10V X5R 1005 R TP 6 C127 CAP CERAMIC CH ECCH0000157 15nF 16V K X7R HD 1005 R TP Dem peace C129 CAP CERAMIC CH 0000182 0 1 uF 10V X5R 1005 R TP C130 CAP CERAMIC CHIP 0002002 47000 pF 10V 1005 R TP Dee preme penam mensem _ Le ae penam _ 6 C200 CAP CERAMIC CHIP 0
36. 2 CAP CERAMIC CHIP 0000115 22 pF 50V J NPO TC 1005 R TP 0000120 39 pF 50V J NPO TC 1005 R TP 6 6 C313 6 C314 CAP CERAMIC CH 0000120 39 pF 50V J NPO TC 1005 R TP 6 C315 CAP CERAMIC CHIP 0000182 0 1 uF 10V X5R 1005 R TP CAP CERAMIC CH ECCH0000182 0 1 uF 10V X5R 1005 R TP 6 C316 6 C317 CAP CERAMIC CH 0000182 0 1 uF 10V X5R 1005 R TP 6 C319 CAP CERAMIC CHIP 0006501 10 uF 6 3V X5R 2012 RATP CAP CERAMIC CH 0000182 0 1 uF 10V 5 1005 RATP 6 C320 6 C321 6 C322 CAP CERAMIC CHIP CAP CERAMIC CH P 0000120 39 pF 50V J NPO TC 1005 R TP ECCH0000110 10 pF 50V D NPO TC 1005 R TP 6 C323 CAP CERAMIC CHIP 0006501 10 uF 6 3V X5R 2012 R TP 6 C324 CAP CERAMIC CH CAP CERAMIC CH P P 0006501 10 uF 6 3V X5R 2012 R TP 6 C325 6 C326 CAP CERAMIC CH 0000120 39 pF 50V J NPO TC 1005 R TP 0000120 39 pF 50V J NPO TC 1005 R TP 6 C327 CAP CERAMIC CHIP ECCH0003002 10 uF 10V Z Y5V 2012 R TP CAP CHIP MAKER ECZH0000841 56 pF 50V J NPO 1005 R TP 6 C328 6 C329 CAP CERAMIC CH 0004904 1 uF 6 3V X5R 1005 R TP 6 C330 CAP CERA
37. 30 6 R331 HIP MAKER HIP MAKER 70000401 0 ohm 1 16W J 1005 R TP 6 R332 RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP 70000476 39 Kohm 1 16W J 1005 R TP 6 R333 6 R334 6 R335 RES C HIP MAKER HIP MAKER HIP MAKER 20000405 10 Kohm 1 16W J 1005 20000406 100 Kohm 1 16W J 1005 GERMEN 20000485 4700 ohm 1 16W J 1005 6 R336 6 R337 HIP MAKER 20000485 4700 ohm 1 16W J 1005 R TP 6 R338 RES CHIP MAKER ERHZ0000483 47 ohm 1 16W J 1005 R TP ERE HIP MAKER 70000454 27 Kohm 1 16W J 1005 R TP 6 R339 6 R341 6 R401 RES C HIP MAKER HIP MAKER HIP MAKER HIP MAKER HIP MAKER 20000467 330 Kohm 1 16W J 1005 R TP 70000406 100 Kohm 1 16W J 1005 R TP 20000450 240 Kohm 1 16W J 1005 R TP 20000406 100 Kohm 1 16W J 1005 R TP 20000401 0 ohm 1 16W J 1005 R TP 121 12 EXPLODED VIEW amp REPLACEMENT PART LIST Location Level No Description Part Number Specification Color Remark 6 R402 R403 R404 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP m HIP MAKER 20000401 0 ohm 1 16W J 1005 R TP R405 R406 R407 HIP MAKER 20000401 0 ohm 1 16W J 1005 R TP RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP
38. 4 4 SIM Card 56 4 5 Vibrator Trouble 58 4 6 Keypad 60 AT RIC TOUDE 62 4 8 Key backlight Trouble 64 43 LCD 66 4 10 Microphone 69 4 11 Receiver Trouble 71 4 12 Speaker Trouble 73 4 13 Headphone Trouble 75 4 14 Charging 77 4 15 FM Radio Trouble 79 DOWNLOAD trainieren 82 5 1 Download 82 5 2 Download 22 83 6 BLOCK DIAGRAM 88 7 Circuit Diagram 89 8 PCB LAYOUT ee 93 9 ENGINEERING MODE 95 9 1 About Engineering Mode 95 9 2 Access 95 9 3 Key 95 9 4 Engineering Mode Menu Tree 95 10 CALIBRATION 92 10 1 Test Equipment Setup 92 10 2 Calibration 92 11 STAND ALONE TEST 109 11 1 Test Program Setting
39. 402 c405 C406 12 0 01uT 10u 33p 18 2012 R T je Lc4o9 lt TNA lt 6 8 28588 alles s gt 5 L cao DCS PCS OUT DCS PCS IN T 22 R406 R407 11 _ _ 0400 in lt GSM_OUT 0 SKY77318 0 ca 39 nsvp R408 R409 NA NA d NA NA H P GND BS Bs 885888885 C413 C414 R410 555555555 27 27 FL400 LMSP2PAA 575TEMP FP PP 9 N 1 1900 1 cats cae T x GSM1800 1900RX NA NA VC1 7 VC_GSM850_900TX c VC2 VC_GSM1800_1900TX c C417 C418 5 GND1 GSM850_900TX 2 n p 27p 27 GND2 65 850 900RX GND3 C419 3 gt gt GSM RXN 1 96 gt gt perAULT BANDSEL L403 2 3 510 5885 D 6 C420 3 GSM_RXP 99 g C421 3p S Dcs RXN FL401 B9308 PART NO SFSB0001401 1404 5 1nH D IN CASE OF GSM850 PCS1900 C422 3p CHANGE THIS DUAL SAW FILTER PCS pom TO PART_NO SFSB0001301 Section Date Sign amp Name Sheet Sheets m 983 RADIO Designer 2006 KEE OUN PARK SPF Y0144601 4 4 E Checked 2006 DRAWING RF Approved 2006 DRAWING VERE LG Electronics Inc NO 1 2 3 4 5 6 7 LGIC 42 A 5505 10 01 LG Electronics Inc 92 8 PCB LAYOUT I T 93 KG270 MAIN SPFY0144601 1 8 PCB LAYOUT TP301
40. 5 R TP 6 R106 20000438 20 Kohm 1 16W J 1005 R TP Le me pee p emen _ 6 R109 20000507 68 Kohm 1 16W J 1005 R TP 6 R110 20000406 100 Kohm 1 16W J 1005 R TP 6 R116 20000401 0 ohm 1 16W J 1005 R TP 6 R119 HIP 0003401 1800 ohm 1 16W J 1005 R TP Le 6 R124 HIP 0008402 160 Kohm 1 16W 1005 R TP 6 R125 ERHZ0000406 100 Kohm 1 16W J 1005 R TP Le ne perennem 6 R202 20000406 100 Kohm 1 16W J 1005 R TP 6 R205 20000483 47 ohm 1 16W 1005 R TP om 6 R207 20000483 47 ohm 1 16W J 1005 R TP 6 R208 20000483 47 ohm 1 16W J 1005 R TP Le e nommer _ 6 R222 20000404 1 Kohm 1 16W J 1005 R TP 6 R223 20000405 10 Kohm 1 16W J 1005 R TP Le em perennem 6 R301 20000443 2200 ohm 1 16W J 1005 R TP 6 R302 20000485 4700 ohm 1 16W J 1005 R TP 6 R304 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP LXI 6 R305 RES CHIP MAKER 20000702 10 ohm 1 10W J 1608 R TP 6 R306 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W 1005 R TP 120 12 EXPLODED VIEW amp R
41. C404 C402 c405 C406 C407 C408 12p T 0 01u T 10u 33p 7 18p 27 00141 2012 je TNA lt 5 5 5 gt 3s gt gt gt 3 50V J NP0 16V K X7R DCS PCS OUT DCS PCS IN R406 R407 gt 11 Eesm our 0400 EGSM IN lt GSM OUT 0 SKY77318 0 12 19 hsvp_GND ENABLE 18 lt R408 R409 TNA NA T 25 NA NA GND BS lt BS 885888885 54 222222222 TT 27 R410 000000000 T T o L Lca4t6 T NA Figure 3 9 3 PAM Power Amplifier Module interface The digital transmitter architecture is based on a fractional N sigma delta synthesizer for constant envelope GMSK modulation This configuration allows a very low power design with a reduced external component count The modulation is transferred between baseband and RF part of the PMB7880 via a digital interface signal into the digital modulator The following Gaussian filter shapes the digital data stream for the GMSK modulation Additionally a pre distortion filter compensates the attenuation of the PLL transfer function resulting in a very low distortion at the transmit output The filtered digital data stream is scaled appropriately and added to the channel word This sum is fed into the MASH modulator The output of the MASH modulator is a sequence of integer divider values representing t
42. ED2 o C208 C209 C210 2 ds z KLepsp 6211 212 C213 C214 NA 27 7 27p Ons 27 27 NA NA R210 et 100K IMSA 96718 13Y902 g F B ENQY0013801 Section Date Sign amp Name Sheet 1116 MODEL GB3 RADIO Sheets Designer 2006 HYUN OK LEE SPFYO144601 2 4 Checked ew AUDIO LCD KEY NAME Approved DRAWING Iss Notice No Ni H nua d m LG Electronics Inc No REV 1 1 LGIC 42 A 5505 10 01 90 LG Electronics Inc 7 CIRCUIT DIAGRAM 10 12 13 m 15 16
43. EIVER 5 x M 032 URY001 3001 93003 0039901 0016401 KG278_PCB_ASSY KG278_PAD_SPEAKER KG278_PAD_RECEIVER KG278_PAD_LCD MPBG005810l 13 no KG278_LCD_ASSY SVLM0024402 K6G218 INTENNA ASSY SNGF0022402 KG218 RF 0042301 KG278_COVER_FRONT MC JK0069001 KG278_COVER_BATTERY MC JA0040301 KG278_CAP_MM MCCZ0024001 KG278_BATTERY_CONN_3PIN 2 0019901 KG278_AS_LABEL 000601 an HE veers neve 1 M8JA0023201 E E KG210 SPEAKER I 505 0025801 DESCRIPTION Q TY DRAWING NO REMARK 114 12 2 Replacement Parts Mechanic component 12 EXPLODED VIEW amp REPLACEMENT PART LIST Note This Chapter is used for reference Part order is ordered by SBOM standard on GCSC Level Dd Description Part Number Specification Color Remark MCJK0069001 MOLD PC LUPOY 5 1004 MTABOO TAPE PROTECTION MPBG0058101 empty AB MPBMO0016401 empi 0168901 emp 4 MWACOO WINDOW LCD MWACO077002 CUTTING PMMA MR 200 MTADOO TAPE WINDOW SURYOO RECEIVER MTAD0065701 empty SURY0013001 PIN 109 dB 32 ohm 11 7 CONTACT ACGMOO COVER ASSY REAR 200 CAP
44. EPLACEMENT PART LIST Location Level No Description Part Number Specification Color Remark 6 R307 RES C HIP ERH 0003301 100 ohm 1 16W J 1005 R TP R308 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP HIP MAKER 20000443 2200 ohm 1 16W J 1005 R TP 6 6 R309 6 R310 HIP MAKER 20000401 0 ohm 1 16W J 1005 R TP 6 R312 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP E HIP MAKER 20000406 100 Kohm 1 16W J 1005 R TP 6 R313 6 R314 HIP MAKER 20000401 0 ohm 1 16W J 1005 R TP 6 R316 RES CHIP MAKER ERHZ0000529 1 5 Kohm 1 16W 1005 R TP 21721 70000405 10 Kohm 1 16W J 1005 R TP 6 R317 6 R318 6 R319 RES C 6 R320 RES C 6 R321 RES C HIP MAKER HIP MAKER HIP MAKER HIP MAKER HIP MAKER 20000443 2200 ohm 1 16W J 1005 20000406 100 Kohm 1 16W J 1005 R TP 20000406 100 Kohm 1 16W J 1005 R TP 20000406 100 Kohm 1 16W J 1005 6 R323 6 R324 HIP MAKER 20000406 100 Kohm 1 16W J 1005 R TP 6 R326 RES CHIP MAKER ERHZ0000476 39 Kohm 1 16W J 1005 R TP 20000401 0 ohm 1 16W J 1005 R TP 6 R327 6 R328 HIP MAKER HIP MAKER 6 R329 5 ERHZ0000438 20 Kohm 1 16W J 1005 IP 20000401 0 ohm 1 16W J 1005 R TP 70000438 20 Kohm 1 16W J 1005 6 R3
45. I B RATOR Change library VBAT VBAT a o lt U 2e N v 1SS302 T5L Q300 2SC5585 Figure 3 12 Vibrator interface This handset has vibrator operation Control signal is controlled by EGold voice with PWM 38 3 TECHNICAL BRIEF 3 13 Memory Interface VBAT NOT MOUNTED 2V8 VMEM S U300 BH28FB1WHFV 1 STBY NC 2 GND BGND VIN VOUT 0301 71GL032A40BAWOF DATAO1 DATA02 DATA03 DATA04 5 DATA06 DATAO7 DATAO8 DATAO9 DATA10 DATA11 DATA12 DATA13 DATA14 DATA15 2V8 VMEM C315 2V8 VMEM 0 1u 2V8 VMEM 2V8 VMEM S R311 NA x _WR 8 ui 2V8 VIO 5 BHE_N 8315 Figure 3 13 Memory interface In E GOLDvoice the 16bits demultiplex X bus interface is used for memory device support NOR Flash memory is supported The NAND Flash memory is not supported The page mode can be supported for flash memories Up to 8MBytes of external RAM and or ROM can be connected to the MCU via its external bus interface Up to 3 external CS signals can be generated to save external glue logic Access to very slow memories is supported via a special Ready function The system MCU clock is set to run with 26Mhz 39 3 TECHNICAL BRIEF 3 14 Power Block Interface 3V2 VBUF 1V5 VRFO VRF1 L 2 gt 2185 VSIM L 2 8 VMEM gt
46. IP SFBH0008105 1800 ohm 1005 Chip bead 1800ohm 1800 ohm 1005 Chip bead 1800 LTER SEPERATOR SFAY0010101 LTER SAW DUAL SFSB0001401 J300 CONN SOCKET ENSY0018101 850 1900 900 1800 2 0 dB 2 0 dB 2 0 dB 2 0 dB ETC Dual Band ASM 2 5 2 5 1 2 942 5 MHz 35 MHz 2 1 dB 20 dB 1842 5 MHz 75 MHz 2 3 dB 12 dB 2 0 1 6 0 68 SMD 925M 960M 1805M 1880M 10p B 150 82 150 15 EGSM DCS Rx 942 5 1842 5 2 0 1 6 0 68 SMD R TP 6 PIN ETC 2 54 mm H 1 5 L102 INDUCTOR CHIP ELCH0001032 L103 L104 INDUCTOR C 0004715 18 nH J 1005 RATP PBFREE INDUCTOR CHIP ELCH0004715 27 nH J 1005 27 nH J 1005 RATP L300 INDUCTOR C 0001556 L400 L401 INDUCTOR C 0001413 270 nH J 1608 R TP INDUCTOR CHIP ELCH0004721 2 2 nH S 1005 R TP Pt 22 nH J 1005 R TP PBFREE L403 INDUCTOR C 0001032 L404 INDUCTOR C ELCH0003814 18 nH J 1005 RATP PBFREE 5 1 1005 R TP 5 1nH 1005 Q200 TR BJT NPN 0007101 0 15 W R TP LOW FREQUENCY 119 12 EXPLODED VIEW amp REPLACEMENT PART LIST Level pores Description Part Number Specification Color Remark 6 Q300 TR BJT NPN EQBN0007101 0 15 W R TP LOW FREQUENCY 6 R101 HIP MAKER ERHZ0000244 22 Kohm 1 16W 1005 R TP 6 R102 HIP 0000278 82 ohm 1 16W J 1005 R TP 6 105 20000438 20 Kohm 1 16W J 100
47. IenueN LG 09159IN 027 LG Service Manual 2 abc 5 8 tuv 0 Table Of Contents 3 INTRODUCTION pp 5 1 1 5 1 2 Regulatory Information 5 7 2 1 H W 7 2 2 SW Feal res eic 8 TECHNICAL BRIEF 14 3 1 Digital Main Processor PMB7880 14 3 2 Power Amplifier Module SKY77318 22 3 3 26 MHz Clock 24 3 4 RTC 32 768KHz Crystal 25 3 5 LCD Interface 3 wire SPI interface 26 3 6 SIM Card 28 3 7 KEYPAD Interface 29 3 8 Battery Charging Block Interface 30 3 9 RF Interface 31 3 10 Audio 33 3 11 Key LED 37 3 12 Vibrator Interface 38 3 13 Memory 39 3 14 Power Block Interface 40 3 15 FM Radio Interface 42 TROUBLE SHOOTING 44 44 RE Trouble et ns 44 4 2 TX Tro ble ite aa 50 4 3 Power On Trouble pp 54
48. Interface Module The AD6527 checks status Periodically During established call mode whether SIM card is inserted or not but it doesn t check during deep sleep mode In order to communicate with SIM card 3 signals SIM_DATA SIM_CLK SIM_RST Signals Description SIM_RST This signal makes SIM card to HW default status SIM_CLK This signal is transferred to SIM card SIM_DATA This signal is interface datum 28 3 TECHNICAL BRIEF 3 7 KEYPAD Interface VO VRTC END END KEY sw201 1 sw202 2 sw203 3 sw204 LEFT sw205 MENU 1 pa o e Y o o R KEY OUT lt lt AS 680 C205 Tr NA SW206 SW207 5 SW208 6 sw209 UP SW210 ETIN LE al o e A o R KEY_OUT2 lt A 680 C206 Tr NA 5211 7 SW212 SW213 g SW214 SW215 O SEND o e 7 o 9 R20 KEY OUT3 A 680 C207 SW216 SW2170 SW218 SW219 DOWN 21 o e R KEY OUT4 A 680 215 C216 C217 C218 C219 C220 R gt SS 211 680 R212 680 KEY IN1 R213 6 KEY IN2 gt gt AN R214 680 KEY IN3 gt R215 6 KEY gt g
49. LE SHOOTING Checking Flow Check L100 L101 C102 103 L100 amp L101 bias will Fluctiate signal above 1 2V Press any Key Check component status Re solder or replace the Component Re solder or replace the Component Check L100 amp L101 Check Receiver replace Receiver Replace PCB 72 4 TROUBLE SHOOTING 4 12 Speaker Trouble TEST POINT Check Points 7 Speaker spring contact Audio amp soldering 1 L104 CN1 oh CIRCUIT SPEAKER AMPLIFIER SPEAKER NA R103 82K NA R104 6117 Hat 20K C118 105 spk 20K R106 RADIO 1 y 219 0 1 U100 2890 24 C2 OUTA Az 16pi 3 4T speaker SUSY0025801 LOUD SPK EN gt 100K Gain Rf Rin 473 4 TROUBLE SHOOTING Checking Flow Check The battery Check the voltage level of U100 Vbat Yes Check the Signal C117 C118 Check the Level of U100 C3 Low Check No U102 Check the Signal Re solder L102 L103 L102 L103 Re Assemble Check the Contact or Re place Of CN101 Speaker Yes Try again or Change the Board 74 4 TROUBLE SHOOTING 4 13 Headphone Trouble TEST POINT Check Points 18pin IO connector Passive Parts slodering Status CIRCUIT DIAGRAM AUXIN 46 2V8 2V8
50. MIC CHIP 0004904 1 uF 6 3V X5R 1005 RATP CAP CHIP MAKER ECZH0000813 100 pF 50V J NPO 1005 R TP 6 C331 6 C332 CAP CERAMIC CH 0000182 0 1 uF 10V 5 1005 RATP 6 C333 CAP CERAMIC CHIP 0000182 0 1 uF 10V 5 1005 R TP 0000179 22 nF 16V X5R 1005 R TP 6 C335 6 C336 CAP CERAMIC CH 0000104 3 pF 50V C NPO TC 1005 R TP 6 C337 CAP CERAMIC CHIP 0000113 18 pF 50V J NPO TC 1005 R TP 0000182 0 1 uF 10V X5R 1005 R TP 6 C338 6 C339 CAP CERAMIC CH 0000182 0 1 uF 10V X5R 1005 RATP 6 C340 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V X5R 1005 R TP CAP CHIP MAKER ECZH0001215 1 uF 10V X5R 1005 R TP 6 C341 6 C342 6 C400 CAP CERAMIC CH CAP CHIP MAKER P 0004904 1 uF 6 3V X5R 1005 R TP ECZH0000802 1 pF 50V NPO 1005 R TP Ft 6 C401 CAP CERAMIC CHIP 0000120 39 pF 50V J NPO TC 1005 R TP LXI 6 C402 CAP CERAMIC CHIP 0003002 10 uF 10V Z Y5V 2012 R TP 6 C403 CAP CHIP MAKER ECZH0000816 12 pF 50V J NPO 1005 R TP 118 12 EXPLODED VIEW amp REPLACEMENT PART LIST Location
51. O EN 5 S 4 2 sano 5 FOR RADIO NA 1 vour CURRENT MODE 3004 Rus 1 je Section Date Sign amp Name Shes i m GB3 RADIO uem en HEADSET RADIO SEL Designer 2226 SANG YEON LEE MODEL 0 is L 2006 5 0144601 RADIO DETECT aeos e RADIO 27K Chaska 2006 NO RADIO 2 7K DRAWING RADIO MEMORY AUDIO I O Approved NAME 2008 DRAWING Iss Notice No Date Name LG Electronics Inc s VER 1 1 1 2 4 5 n 7 s LG 42 A 5505 10 01 91 LG Electronics Inc 7 CIRCUIT DIAGRAM 1 2 3 4 5 6 7 8 9 10 TP400 TP401 TP402 TP403 TP404 405 9 9 9 9 9 9 R400 NA R401 0 A A z C400 1 E ue e E 8 amp x 1401 22nH T i ss 8 8 VBAT 5 A R404 R405 i IN 3 lt DCS PCS OUT 3 CE EPI L402 B NA C403 C404 _ C
52. OWER ON 55 4 TROUBLE SHOOTING 4 4 SIM Card Trouble TEST POINT R302 C310 AL 4 E 1331 0332 CIRCUIT DIAGRAM 2V85 VSIM 2V85 VSIM 2V85 VSIM GND VCC 2 SIM DATA io n GND2 GND1 56 4 TROUBLE SHOOTING Checking Flow START Does the SIM cards supports 3V Change the SIM Card Our phone supports only 3V SIM card Check soldering status of J300 and Other componen R302 C310 C311 C312 Resolder J300 or other component Change board J300 PIN1 2 85V Check J300 PIN1 Re download SW Check Operation Change board 57 4 TROUBLE SHOOTING 4 5 Vibrator Trouble TEST POINT Q300 PIN3 CIRCUIT DIAGRAM VBAT VBAT a o Uv NI 188302 T5L F H 25 5585 58 4 TROUBLE SHOOTING Checking Flow START Enter the engineering mode and set vibrator on R306 2 8V R308 0 7V Check Voltage Level of R306 R308 Change PCB Q300 PIN3 0V R305 0V Check Voltage Level of Q300 PIN3 and R305 Change Q300 Replace Vibrator 59 4 TROUBLE SHOOTING 4 6 Keypad Trouble TEST POINT R215 R201 R203 CIRCUIT DIAGRAM
53. R220 RES CH RHY0003301 100 ohm 1 16W J 1005 R TP RHY0003301 100 ohm 1 16W J 1005 R TP R221 SPFYOO PCB MAIN SPFY0144601 FR 4 0 8mm BUILD UP 4 KG270 KG278 Main PCB 123 12 EXPLODED VIEW amp REPLACEMENT PART LIST 12 3 Accessory Note This Chapter is used for reference Part order is ordered by SBOM standard on GCSC Level Location Description Part Number SBPL0089503 Specification Color Remark SBPLOO PACK LI ION BATTERY PACK LI ION SGEY00 EAR PHONE EAR MIKE SET SBPL0088203 SGEY0003209 SSAD0024901 3 7 V 750 mAh 1 CELL PRISMATIC WLT BATT Europe Label Pb Free 3 7 750 0 2C PRISMATIC 43x34x46 ALLTEL SILVER Innerpack Europe Label 3 7 V 750 mAh 1 CELL PRISMATIC GB3 BATT CMW standard batt Europe Pb Free 3 7 750 0 2C PRISMATIC 43x34x46 ALLTEL SILVER Innerpack Europe Label 10mW 16 OHM 105dB 10KHZ 450HZ empty BLACK EARPHONE HOUSING SILVER 18P MMI CONNECTOR MONO18P 5P LOW COST No 3 MCJAO0 COVER BATTERY MCJA0040301 MOLD PC LUPOY SC 1004A 3 3 100 240V 5060 2 5 1 V 7 A CB GOST AC DC ADAPTOR 100Vac 350Vac 5 1V 0 15 0 2 700mA 5060 2P CONNECTOR 3 SSADOO ADAPTOR AC DC ADAPTOR AC DC SSAD0024902 100 240V 5060 Hz 5 2 V 0 7 A CB GOST AC DC ADAPTOR 100Vac 350Vac 5 2 0 3V 700mA 5060 WALL 2P CONNECTOR 124 Note
54. RF carrier at the desired frequency in the 850 MHz 900 MHz 1 8 GHz and 1 9 GHz bands using an modulator The E GOLDvoice supports dual band applications Finally an RF power module amplifies the RF transmit signal at the required power level Using software the E GOLDvoice controls the gain of the power amplifier by predefined ramping curves 16 words 11 bits For baseband operation the E GOLDvoice supports Making or receiving a voice call Sending or receiving an SMS 18 3 TECHNICAL BRIEF 3 1 4 PMU Details The E GOLDvoice includes battery charger support various sensor connections for temperature battery technology voltage etc and a ringer buffer E GOLDvoice avoids the need for an external power management component because its internal power management unit contains Voltage regulators for the On chip and Off chip functional blocks Charger circuitry for NiCd NiMh and Lilon cells 3 1 5 Bus Concept The E GOLDvoice has two cores a microcontroller and a DSP each with its own bus There is an interconnection between the TEAKlite bus and the C166S X Bus 3 1 6 C166S Buses The 1665 is connected to three buses 1 Local Memory LM bus 2 X Bus 3 PD Bus 3 1 7 TEAKLite Bus The TEAKlite is connected to the TEAKlite bus 3 1 8 Bus Interconnections The interconnection between the X Bus and the TEAKlite Bus uses Multicore Synchronization Shared Memory 3 1 9 Clock Concept T
55. RTC Replace BAT100 about 2 0V YES RTC will work properly 63 4 TROUBLE SHOOTING 4 8 Key backlight Trouble TEST POINT Q200 PIN3 CIRCUIT DIAGRAM KEY BACKLIGHT VBAT R219 1000hm R220 1000hm R221 100 217 100 R218 100 216 100 222 223 10V K X5R 10V K X5R LD200 LEBB S14H 2SC5585 KEY_BACKLIGHT gt Q200 64 4 TROUBLE SHOOTING Checking Flow START NO us Check Voltage Level R222 2 8V Giese Change PCB Replace component YES NG NO Check Voltage Level Check component Of R222 and Q200 PIN2 R222 and Q200 NO Replace component R222 0 7V YES Check LED component LD200 LD205 R216 R221 YES Change PCB 65 4 TROUBLE SHOOTING 4 9 LCD Trouble TEST POINT R207R205 R2088208 E HE CIRCUIT DIAGRAM 2V8 VIO CN200 1 3 Lon RESET _ 5 B cs3 R207 47 7 SRM i gt SSCO_MTSR 9 MLED gt gt C208 C209 C210 13 NA 7p 27p R210 100K IMSA 9671S 13Y902 ENQY0013801 66 4 TROUBLE SHOOTING Checking Flow START NO Backlight is OK Change PCB YES Check Operation OK Change LCD After LCD changes NG C221 2 8V Control Signal
56. Refer to next page Check Control Signal and Power Including soldering status NG Replace component Or change PCB OK NG Check soldering status of CN200 Replace CN200 OK Change PCB 67 4 TROUBLE SHOOTING WAVEFORM File Edit Vertical Tek Measure Masks Math 29 Dec 06 12 25 23 Ing Display Cursors 400psipt 550 pattern is out randomly when clock is fluctiatied clock frequency is 13MHz and LCD RESET is High 2 8V 68 Utilities 1 Pos 2 8ns Curs2 Pos 74 015 t2 hn Highic1 4 TROUBLE SHOOTING 4 10 Microphone Trouble TEST POINT CIRCUIT DIAGRAM VMIC MAIN MIC R304 C306 VINNORP 100 OB4 15L42 C33L C307 C308 0 1u T 39p 7 C309 VINNORN 1000hm C313 C314 69 4 TROUBLE SHOOTING Checking Flow Make a call Check voltage level of R300 R300 VMIC 2 5V Replace PCB Re solder or replace the Component YES Check component status around MIC Re solder or replace Microphone Check status of MIC heck the voltage Leve of MIC_P Change Microphone MIC_P about 1 2 1 5V D with a few tens mV OK Replace PCB 70 4 TROUBLE SHOOTING 4 11 Receiver Trouble TEST POINT REC N REC P CIRCUIT DIAGRAM RECEIVER 11 07 3T receiver SURY0013001 71 4 TROUB
57. Schedule Memo To Do list Messaging World Time Setting Local Time Display Two Number of Cities Time Dual clock Daylight saving Summer time calibration function NITS Automatic setting as country code in SIM Unit converter x O x O x O O O O O O O x O x x x O Currency Surface Length Weight Temperature Volume Velocity Stop watch Calculator Calculation PC Sync Phone Book Sync Message Sync Multimedia Contents Sync Scheduler Sync x x x x O E MAIL EMS Schedule Phonebook Name card etc Sync ML DS DM Game Menu Quick Access Mode Profile External Interface Electrical Man Machine Interface Development and Test Facility O O x x Xx 12 Function Handset Detail Item Restore Factory Setting 2 PERFORMANCE Specification Read Software Version Battery Charging Mode Security Emergency Call Handset Lock Security Code Delete all SIM Lock Key guard Real Time Clock 12 24 hour Calendar Time Zone Automatic Leap Year Adjustment Daylight saving Alarm Manager Once Daily Mon Fri Mon Sat Dimming Clock Power off Alarm On Alarm Event Display Accessory Hand strap Embedded microSD Card microSD Adapter Stereo earmic O x x x O O x O x OJ
58. ection contains all the necessary analog functional blocks including microphone supply generation output and input amplifiers and analog filtering Signals Description Main Receiver Positive signal Differential signal Main Receiver Negative signal Differential signal Headset signal Single Ended signal Speaker Output Positive signal Differential signal Speaker Output Negative signal Differential signal Main Microphone Positive signal Differential signal Main Microphone Negative signal Differential signal Headset Microphone Positive signal Differential signal Headset Microphone Negative signal Differential signal Main Headset Microphone supply power 34 3 TECHNICAL BRIEF RECEIVER 11 07 3T receiver SURY0013001 C103 39p Figure 3 10 2 Main Receiver interface SPEAKER AMPLIFIER SPEAKER i Ey 82K SPK P ys RADIO SPK 25 LOUD SPK EN gt 16pi 3 4T speaker SUSY0025801 100K Gain Rf Rin Figure 3 10 3 Main Speaker interface 35 3 TECHNICAL BRIEF VMIC MAIN MIC R304 C306 VINNORP 5 OB4 15L42 C33L C307 0 1u R307 C309 VINNORN 1000hm MIC300 Figure 3 10 4 Main Microphone interface
59. em turn off operation management including emergency under voltage and programmed shutdown functions Internal reset of the baseband including silent reset Tri state function of the baseband module Standby mode controlled by VCXO EN provided by SCCU module 41 3 TECHNICAL BRIEF 3 15 FM Radio Interface Steu Olavu 13sava gt gt THEI 2 lt lt pe 100 NIA 1Vdd3 gt VN g 7 ASIS E gt gt and aoxnv ARMIS lt wa olave D D wi doxnv lt lt 2 MEN uias olava Ts gt gt 1 Olav om anz Dro Opto ay gt vas W4 79 OIA 8AZ 001 SECH wee E Olavu 184 33 9199 22 lt NaHs dnv orav g lt 5 7 n gt 0 1 0655 Olavs Baz Inou 9H8 Z0ZVIS isu tan E a VN ON mle olava 1031 300 1N33302 uz 3 1 19313d olavu lt ly 1 z door eco
60. en automatically wraps around to the upper byte of register and proceeds from there until continuous writes cease Data transfer ceases with the STOP command After every STOP Command The internal address counter is reset For read operations the device acknowledge is followed by an eight bit data word shifted out on falling SCLK edges An internal address counter automatically increments to allow continuous data byte reads starting with the upper byte of register OAh followed by the lower byte of register OAh and onward until the lower byte of the last register is reached The internal address counter then automatically wraps around to the upper byte of register and proceeds from there until continuous reads cease After each byte of data is read the controller IC should return an acknowledge if an additional byte of data will be requested Data transfer ceases with the STOP command After every STOP command the internal address counter is reset 3 15 2 Headphone Amplifier The 4411 fixed gain stereo headphone driver features Maxim s patented DirectDrive architecture eliminating the large output coupling capacitors required By conventional single supply headphone drivers The device consists of two 80mW Class AB headphone drivers internal feedback network fixed 1 5V V gain undervoltage lockout UVLO shutdown control charge pump and comprehensive click and pop suppression circuitry 43 4 TROUBLE SHOOTING
61. enu is to test the volume of It rings in the following sequence Volume 1 Volume 2 Volume 3 Volume 0 mute Volume 4 Volume 5 9 4 6 4 Vibrator Vibrator is on for about 1 5 seconds 9 4 6 5 LCD Main LCD screen resolution tests horizontally and vertically one by one and fills the screen 9 4 6 6 Key Pad When a pop up message shows Press Any Key you may press any keys If the key is working properly name of the key is displayed on the screen 103 10 CALIBRATION 10 CALIBRATION 10 1 Test Equipment Setup 10 2 Calibration Steps 10 2 1 Tune on the phone 10 2 2 Execute HK 28 WE WIN BARA ET 2 Pa CWCH DSH TNETNEDHMWHor mac LES AE AA ig TIEL li BRE U d Om arg 2 46 gg oin a sc ono mm oie do MP LI L1 di CET cl kan 104 4 000V 0 0000A Bh Eu E E B Eu mc am See 222g ur d S255 oF ad am 2955 uF 36 NE ETIE HF ae ETIE HF F XML EA Se 05 7 0 265 2 mm 74 25 mH 2105 07 08 CH H H s 06 10 16 1699 06 18 29 13 0 1727 17 22 1gi3 6 17 2m 1588 06 17
62. he E GOLDvoice has a flexible clock control 3 1 10 Interrupt Concept The C166 MCU carries out the E GOLDvoice interrupt system 3 1 11 Debug Concept The E GOLDvoice includes a multi core debug The C166 and TEAKlite cores can be debugged parallel with single JTAG port that is on a single host Mutual breakpoint control 19 3 TECHNICAL BRIEF 3 1 12 C166 Debug Concept The debugging of the C166 uses the OCDS and the Cerberus 3 1 13 TEAKLite Debug Concept debugging uses the and the SEIB 3 1 14 Power Management The E GOLDvoice provides the power management unit PMU for the complete mobile phone application The integrated PMU is directly connected to the battery and provides a set of linear voltage regulators LDO s These LDO s generate all required supply voltages and currents needed in a low feature mobile phone A charger control circuit charges NiCd NiMH and Lilon batteries The charger control supports hardware controlled pre charging and software controlled charging It offers a wide charger voltage range making halfwave full wave charging with cheap transformers possible White blue backlight generation is supported with a special driver for very a low external parts count Power consumption during operation phases is minimized due to flexible clock switching In the Standby Mode most parts of the device are switched off only a small part is running at 32kHz and the c
63. he high resolution fractional input signal This sequence controls the MMD multi modulus divider at a sample rate of 26MHz Thus a tightly controlled frequency modulation of the VCO is achieved 32 3 TECHNICAL BRIEF 3 10 Audio Interface VMIC MICP2 AUXIP MICN2 AUXIN MICP1 VINNORP MICN1 VINNORN EPPA1 EPPA1 EPP1 RECP EPN1 REC N Figure 3 10 1 Audio interface The audio front end of E GOLDvoice offers the digital and analog circuit blocks for both receive and transmit audio operation and ringing It features a high quality digital to analog path with amplifying stages for connecting acoustic transducers to the E GOLDvoice In the transmit direction the supply voltage generation for microphones low noise amplifier and analog to digital conversion are integrated on the E GOLDvoice For E GOLDvoice the EPp1 EPn1 driver are used as differntial Earpiece Driver 1 is used as single ended Headset Driver The audio front end itself can be considered to be organized in three sub blocks Interface to processor cores and indirectly C166S Digital filters Analog part 33 3 TECHNICAL BRIEF The interface to the processor cores consists of a direct physical connection to the TEAKlite DSP bus and a set of firmware commands to handle communication between the 1665 and the audio front end which serves as the interface peripheral for audio algorithms running on the DSP or the controlle
64. he low clock frequency and the optimized low power design give the possibility to run the chip with a minimum of power dissipation For example for this specific application the 26 MHz reference oscillator can be switched off during system standby and a lowpower time reference can be kept when the 32k clock is provided to the RTC The RTC consists of an PMB7880 specific RTC shell containing the RTC macro as well as the 32 kHz oscillator as described in the following sections The module RTC Shell solely performs level translation of the 32KKHz clock to the VDD LD1 power supply domain and is not functionally associated with the RTC 25 3 TECHNICAL BRIEF 3 5 LCD Interface 3 wire SPI interface 2V8 VIO CN200 QHO wrPD MTPG Ho LCD RESET lt lt R205 47 S o 6 R206 47 R207 47 7 55 lt lt 8 R208 47 9 O7 5500 MTSR MLED 10 i MLED2 4 6208 _Lc209 C210 M eu tcp ip 16211 212 6213 214 NA 27 7 27p t Lo GH 27 27 NA NA R210 L cnm 100K T u IMSA 9671S 13Y902 ENQY0013801 gt Figure 3 5 1 LCD Interface bu CHARGE PUMP U200 AAT3157ITP T1 5 10 Figure 3 5 2 Charge pump interface 26 3 TECHNICAL BRIEF Signals Description CS3 This signal enable to access to the driver IC of LCD SSCO MTSR This signal tran
65. ling Last Number Redial Multi party Call Conference Call Explicit Call Transfer 2 PERFORMANCE Function Detail Item Specification Network Automatic Network Selection Manual Network Selection Network Service Status DTMF Signaling DTMF Enable amp Disable Key Tone Volume 6 Level Include Mute 6 Level Include Mute 10Type fixed Vibrator amp Ring Indicator 6 Level Include Mute Ring Tone Volume Ring Tone Pattern Ring Type Silent Earpiece Volume Mute Cell Broadcast Read Cell Broadcast Cell Broadcast Categories Cell Broadcast Message Language Phone Book Entry 300 Field Office Mobile Numeric Store and Recall Alphabetic Store Alphabetic Recall Scroll by alphabetic or numeric order Last Number Dialed Last Number Missed Last Number Received Copy amp Move Fixed Dial Number Barred Dial Number Service Dial Number Email Entry Picture ID Video Caller ID My Name card 10 Function Supp Services Detail Item Call Forwarding Call Barring 2 PERFORMANCE Specification All Incoming Calls No Reply On Busy Not reachable All Outgoing Calls International Calls Cal
66. ls except to Home Country incoming Calls All incoming Calls when roaming Conference Call up to 3 calls Plug In Type 3 V only SIM Lock Service Provider Network Lock SIM Toolkit Class 1 2 3 Prepaid SIM Operation Mega SIM Short Messaging Manage ment Read Message Write and Edit Message Send and Receive Message Not Support EMS Reply to Message Forward Message Extract Number from Message Message Status Message Unread Indicator Settable Message Center Number Reply Path and Validity Visible and Audible Message Receive Alerting Voice Mail Settable Voice Mail Center Number Message Protocol Normal Fax National Paging Email X400 ERMES Voice Message Overflow Indicator Message Center Number Help Menu 11 2 PERFORMANCE Function Sound contents Detail Item Ringtones Specification Karaoke Stutter Sound Flip tone Button tone Others Miscellaneous Function Development amp Test Facility Field Test Facility Display Software Version IMEI Text Input Language Predictive word input Selectable Auto Language T9 Scheduler Schedule To Do List 20 input 20 character 50 input Memo 20 input 40 character D day counter Send via Bluetooth
67. lt lt 680 C207 F NA SW216 SW2170 SW218 SW219 DOWN 1 Ic 1 1 Q4 Q4 O Q4 O Q4 R209 KEY OUTA lt 680 C215 C216 C217 C218 C219 C220 NA NA NA NA NA NA R211 680 KEY IN0 R212 680 KEY gt gt R213 680 KEY IN2 gt R214 680 KEY IN3 R215 680 KEY INA gt VBAT KEY BACKLIGHT 4 a SES 26 Rt RED RE LASS nes nes Bes Ses al TU Fay Bay E E 8 10VKXSR oF F 2 55 10V K X5R Lgo Vid Via Vea 58 x28 x8 558 soe x48 zac 4 xa uo wa 3 25 5585 KEY BACKLIGHT gt 52550 VBAT CHARGE PUMP 1 p 4200 AATSISZITP TY IN Cte MAKER ID Voltage Tou SII HIGH 1 9V 8 Cae C201 MLED 5 4 CP Mu PI SHARP LOW ov W_LED_DRV gt 11 SET MLED1 GP 150Kohm pull 0 9V 02 5 MLED2 R202 c202L 4 D3 5 10K 27 GND NC C203 C204 ET 27 27p 2 CN200 3 G MTPG M LCD RESET lt lt 5 6 ols R206 47 Ssco lt lt mer 47 8 R208 47 y Jo e gt gt ssco MTSR MLED 44 10 lt MLED1 ML
68. nna input signal is converted to the baseband filtered and then amplified to target level by the RF transceiver chipset Two A to D converters generate two 6 5 Mbit s data streams The decimation and narrowband channel filtering is done by a digital baseband filter in each path The DSP performs 1 The GMSK equalization of the received baseband signal SAIC support available 2 Viterbi channel decoding supported by an hardware accelerator The recovered digital speech data is fed into the speech decoder The E GOLDvoice supports fullrate halfrate enhanced fullrate and adaptive multirate speech CODEC algorithms The generated voice signal passes through a digital voiceband filter The resulting 4 Mbit s data stream is D to A converted by a multi bit oversampling converter postfiltered and then amplified by a programmable gain stage The output buffer can drive a handset ear piece or an external audio amplifier an additional output driver for external loud speaker is implemented In the transmit direction the differential microphone signal is fed into a programmable gain amplifier The prefiltered and A to D converted voice signal forms a 2 Mbit s data stream The oversampled voice signal passes a digital decimation filter The E GOLDvoice performs speech and channel encoding including voice activity detection VAD and discontinuous transmission DTX and digital GMSK modulation In the RF transceiver part the baseband signal modulates the
69. of charge 30 3 TECHNICAL BRIEF 3 9 RF Interface FL400 _ LMSP2PAA 575TEMP IN GSM1800_1900TX GSM1800 1900RX VC1 VC GSMB850 900TX VC2 VC GSM1800 1900TX GND1 GSM850_900TX GND2 GSM850 900RX GND3 Figure 3 9 1 ASM interface 64191 GSM_RXN L403 18nH 4 420 3 GSM 64211 3p S DCS RXN 1 FL401 89308 PART NO SFSB0001401 1104 5 1nH IN CASE OF GSM850 PCS1900 3p y pcs CHANGE THIS DUAL SAW FILTER TO PART NO SFSBO0001301 Figure 3 9 2 SAW Filter interface E GOLDvoice features a fully integrated constant gain direct conversion receiver i e there is no interstage filter needed and the baseband level at the analogue IQinterface follows directly the RF input level Depending on the baseband ADC dynamic range single or multiple step gain switching schemes are possible An integrated selfaligning low pass filter ensures the receivers to function under blocking and reference interference conditions and avoids aliasing by baseband sampling An automatic DC offset compensation is implemented and can be switched depending on the gain setting 31 3 TECHNICAL BRIEF a lt T x Y x a g 88 L4 VBAT VBAT amp 5 5 5 amp R404 R405 3 i i lt DCS PCS OUT gt gt gt 0 0 e 1402 1 T I I i __
70. ohm 89 dB 16 mm CONTACT SAFYOO PCB ASSY MAIN SAFY0193036 SAFBOO PCB ASSY MAIN INSERT SAFB0061605 SUMYOO MICROPHONE SUMY0003802 42 dB 4 1 5 ERI SVLMOO LCD MODULE SVLM0024402 SAFF00 ASSY MAIN SMT PCB ASSY MAIN SMT pb BOTTOM MAIN 128 128 35 78 39 7 2 7 65k CSTN TM S6B33BG 13 1 52 Serial IF Only for CI SAFF0114336 5 0086602 SBCL0001901 BAT100 BATTERY CELL LITHIUM C100 CAP CERAMIC CH 0000120 3 3 0 025 mAh COIN Capacitor type Backup Pb Fred 3 3 0 025mAh COIN 39 pF 50V J NPO TC 1005 R TP C101 CAP CERAMIC CHIP 0005602 1 2 2 uF 16V X5R 1608 R TP a 0000113 18 pF 50V J NPO TC 1005 R TP C104 CAP CERAMIC CH C105 CAP CERAMIC CH C106 CAP CERAMIC CH 0000113 18 pF 50V J NPO TC 1005 R TP 0004904 1 uF 6 3V X5R 1005 0004904 1 uF 6 3V X5R 1005 C107 CAP CERAMIC CH C108 CAP CERAMIC CH C109 CAP CERAMIC CH 0004904 1 uF 6 3V X5R 1005 0004904 1 uF 6 3V X5R 1005 0004904 1 uF 6 3V X5R 1005 C110 CAP CERAMIC CH C111 CAP CERAMIC CH C112 CAP CERAMIC CH 0004904 1 uF 6 3V X5R 1005 0004904 1 uF 6 3V X5R 1005 0004904
71. ontroller RAM is switched to a power saving mode The TEAKLite ROM can be switched off during Standby via SW 3 1 15 On Chip Security Concept Secure boot is based on a public private key approach Flash images that are not signed with the private key during phone manufacture cannot be loaded Verification of the Flash code is done with the public key The public key as well as hash and verify algorithms are stored in the ROM which ensures a hardware secured boot procedure The following security features are supported Prevention of illegal Flash programming Flash programming makes use of the E GOLDvoice ID for personalization checks with IMEI and SIM lock protection 20 3 TECHNICAL BRIEF The security features use the following mechanism Boot ROM flow Controls the boot transition to external flash Controls the flash update Flash tied to the individual chip via an ID using e fuses that is each E GOLDvoice chip has its own fused ID Further details on the E GOLDvoice security concept are not publicly documented 3 1 16 Asynchronous Operation Mode Concept The E GOLDvoice can operate in either The traditional synchronous mode with the 26MHz system clock synchronized on the base station A special asynchronous mode XO concept In the asynchronous mode the 26MHz clock input is not synchronized with the base station the residual frequency offset is compensated in the digital signal processing domain This proce
72. oratory 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 A 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 Keep sensitive parts in these protective packages until these are used When returning system boards or parts like EEPROM to the factory use the protective package as described 2 PERFORMANCE 2 1 H W Features Item Specifications 2 PERFORMANCE Band GSM DUAL Band 900 1800 Type Bar type Dimension 98 45 12 9mm Weight Battery 60g 750mAh Li ion Talk Time Over 2hours EGSM TX Level 5 Stand by Time RTC Over 200 hours Paging period 5 Under 4 hours when removed battery Antenna Internal Type Dual band LCD Main 1 52 128x128 pixels 65K Color STN LCD Back Light Yes Back Light color Blue Vibrator Yes Speaker amp Receiver Yes 11x07 Receiver 168 Speaker C MIC Earphone Jack Yes Mono or Stereo Optional SIM Yes Plug in Type 3 0V MIDI
73. ouble TEST POINT CHECKING FLOW T Check Pin 1 2 of SW400 a with RF Cable J 2 swaoo Mobile SW SW400 es A gt 1t Replace ASM FL400 Check Pin 6 7 and 8 9 of FL401 Replace SAW Filter FL401 Mobile SW amp ASM is OK See next page FL401 6 7 and 8 9 output are balanced 49 4 TROUBLE SHOOTING 4 2 TX Trouble TEST POINT CHECKING FLOW Setup Test Equipment Cell Power 74dBm GSM850 CH190 PCS CH661 Check point DCXO X101 Check point ULC2 U102 Outp ut Signal Check point PAM U400 Conirol Signal Check ASM amp Mobile S W amp SAW FL400 SW400 FL401 Re Download S W amp RF CAL 50 4 TROUBLE SHOOTING TX Trouble TEST POINT CIRCUIT lt m E 4 49 VBAT 50V J NPO KXTR 10V 2 YSV 5 5 lt DCS PCS OUT 5 252 E P NA T 2p ootu lou asp ao TEE n 5888 80V 1NPO 16V LB RF In put 15 pos pes our pcsn M J 7 DA 11 4 our gt 0 Lom cal 19 ENABLE 8
74. ptimized for voice centric Mobile Phone applications The E GOLDvoice is designed as a single chip solution that integrates the digital mixed signal RF functionality and a direct to battery Power Management Unit The transceiver consists of e Constant gain direct conversion receiver with an analog baseband interface Fully integrated Sigma Delta synthesizer capability Fully integrated two band RF oscillator Two band digital GMSK modulator with digital TX interface Digitally controlled crystal oscillator generating system clocks The E GOLDvoice supports a direct battery connection hence eliminating the need for an external Power Management Unit The E GOLDvoice has different power down modes and an integrated power up sequencer The E GOLDvoice is powered by the C166 S MCU and TEAKLite DSP cores The operating temperature range from 40C to 85C It is manufactured using the 0 13 CMOS process 15 3 TECHNICAL BRIEF 3 1 2 Features Baseband High performance fixed point TEAKlite DSP e C1668 high performance microcontroller There are several Interfaces 125 interface for DAI connections for Tape Approval High Speed SSC Interface for connection of external peripherals SIM Interface Keypad Interface 6x4 or 5x5 keys EBU for external RAM FLASH connection Asynchronous serial interface JTAG Interface Black amp white and color displays are supported PWM source to drive vibrator
75. put and output ports of the SKY77318 are internally matched to a 50 load to reduce the number of external components for a quad band design Extremely low leakage current 2 5 uA typical of the dual PA module maximizes handset standby time The SKY77318 also contains bandselect switching circuitry to select GSM logic 0 or DCS PCS logic 1 as determined from the Band Select BS signal In Figure 1 below the BS pin selects the PA output DCS PCS OUT orGSM OUT and the Analog Power Control VAPC controls the level of output power The VBATT pin connects to an internal current sense resistor and interfaces to an integrated power amplifier control IPAC function which is insensitive to variations in temperature power supply process and input power The ENABLE input allows initial turn on of PAM circuitry to minimize battery drain 23 3 TECHNICAL BRIEF 3 3 26 MHz Clock DCXO E GOLDvoice Digital Basehand E GOLDvoice xu M Analog RF Subsystem XoCal MCU UXO XoTune RF contro CKDAE DIGFIL DCXO Core AFC DAC xO XOX Figure 3 3 E GoldVoice DCXO Overview DCXO Digitally Controlled Crystal Oscillator and VCTCXO Voltage Controlled Temperature Compensated Crystal Oscillator are two different techniques used To maintain the mobile s reference oscillator s accuracy over time The reference oscillator s accuracy over time will vary due to initial cry
76. r The audio front end Generates interrupts on certain occasions for example when exchange of data is requested The core interface part of the audio front end also contains the control and status registers which are used to set up certain operation modes of the peripheral The section next to the core interface contains the digital filters for interpolation and decimation of the audio signals being received and transmitted The data path for the receive direction can be set up to process sampling rates between 8kHz and 48kHz The interpolation filters for the respective sampling rates are implemented in a dedi cated hardware block and are automatically selected to suite the chosen sampling rate Low pass interpolation filtering which produces an unsigned 16 bit data stream with a sampling rate of 4 MHZ is performed digitally D to A conversion postfiltering and final amplification are performed on the analog part The amplifier buffer for voiceband receive does also support ringer functionality The ringer functionality is activated by Setting bits RINGSELPN or RINGSELPA in the voiceband part of the analog control register In transmit direction amplification prefiltering and A to D conversion analog gt A modulation performed on the analog part The resulting 2 Mbit s data stream is filtered by a digital low pass decimation filter for further processing by DSP firmware Two sampling rates 8kHz and 16kHz are supported The analog s
77. sfer serial data to driver IC SSCO CLK This signal transfer serial clock to driver IC LCD RESET This signal makes driver IC to HW default status MLED This signal provide power to white LEDs MLED1 2 This signal be feed back from white LEDs 2V8 VIO This signal provides power to LCD modules 2 8V The AAT3157 is a low noise constant frequency charge pump DC DC converter that uses a trimode load switch 1X fractional 1 5X and doubling 2X conversion to maximize efficiency for white LED applications The AAT3157 is capable of driving up to three channels of LEDs at 20mA per channel from a 2 7V to 5 5V input The current sinks may be operated individually or in parallel for driving higher current LEDs A low external parts count two 1pF flying capacitors and two small 1 capacitors at VIN and VOUT make this part ideally suited for small battery powered applications AnalogicTech s S2Cwire Simple Serial Control serial digital input is used to enable disable and set current for each LED with 16 settings down to 50p A The low current mode supply current can be as low as 5 to save power Output mA Ch Output mA Ch Figure 3 5 3 Charge pump Output Current 27 3 TECHNICAL BRIEF 3 6 SIM Card Interface 2V85 VSIM 2V85 VSIM 2V85 VSIM R302 4 7K SIM_RST SIM_CLK Figure 3 6 SIM CARD Interface The EGoldVoice provides SIM
78. ssing includes frequency and timing compensation of the baseband and voiceband signals 21 3 TECHNICAL BRIEF 3 2 Power Amplifier Module SKY77318 VCC1 GSM IN BiCMOS PA gt Match GSM OUT VBATT ntegrated Power POWER CONTROL VAPC s Amplifier ENABLE Controller K BAND SELECT 1 gt Match DCS PCS OUT DCS PCS IN MODULE 10323 O01 Figure 3 2 SKY77318 FUNCTIONAL BLOCK DIAGRAM The SKY77318 Power Amplifier Module PAM is designed in a low profile 1 2 mm compact form factor for quad band cellular handsets comprising GSM850 900 DCS1800 and PCS1900 operation The PAM also supports Class 12 General Packet Radio Service GPRS multi slot operation The module consists of separate GSM PA and DCS1800 PCS1900 PA blocks impedance matching circuitry for 50 Q input and output impedances and a Power Amplifier Control PAC block with an internal current sense resistor The custom BiCMOS integrated circuit provides the internal PAC function and interface circuitry Fabricated onto a single Gallium Arsenide GaAs die one Heterojunction Bipolar Transistor HBT PA block supports the GSM bands and the other supports the DCS1800 and PCS1900 bands Both PA blocks share common power supply pins to distribute current The GaAs die the Silicon Si die and the passive components are mounted on a multi layer laminate substrate The assembly is encapsulated with plastic overmold 22 3 TECHNICAL BRIEF RF in
79. stal frequency offset temperature drift and aging These static and dynamic frequency variations have to be compensated otherwise the mobile would be in danger of losing connection to the network The technique used to perform the frequency compensation is generally termed Automatic Frequency Control AFC To summarize the operation of DCXO GSM Baseband processor will calculate the AFC compensation which is continuously updated required based on the measured frequency error Then the required AFC compensation is sent to the LUXO Lineari Zation Unit of Crystal Oscillator which in turns control the DCXO core and generates The 26MHz system clock 24 3 TECHNICAL BRIEF 3 4 RTC 32 768KHz Crystal 32 768KHZ CRYSTAL X100 MC 146_12_5PF 32 768KHz 18p ipe i es Figure 3 4 E Gold Voice Interface The integrated Real Time Clock RTC is able to provide programmable alarm functions and external interrupts Due to its extreme low power consumption the RTC can be supplied from a small backup battery This allows the generation of external interrupts even when the main PMB7880 supply voltage is switched off For this purpose the RTC is powered by own voltage supply pins VDD and VSS RTC The RTC shall be driven by a 32 768 kHz 32k clock which needs to be applied via the PMB7880 F32K and OSC32K pins The clock can be fed from either an external clock source or use the on chip 32 KHz oscillator module T
80. t s Figure 3 7 KEY MAXTRIX Interface The keypad interface is connected to the X Bus together with the XBIU and the Shared Memory Register using a single Bus Interface The keypad supports two scan modes By default the keypad is a 4x6 scan matrix 4 input and 6 output pins To set the keypad to a 5x5 scan matrix 5 input and 5 output pins The scan mode should be determined at the very beginning of the system start because changes are not allowed later 29 3 TECHNICAL BRIEF 3 8 Battery Charging Block Interface CHARGING IC 2V8 VIO VCHARGE VBAT VCHARGE 119 1 8K CHARGE DETECT 4 VBAT C125 FAULT VSEN TEMP tu 10V K X5R CHG_STATUS lt _STATUS 18 10V K X5R TIME V2P8 GND lt CHG_EN Figure 3 8 Charging IC Interface The AAT3681A is a high performance battery charger designed to charge single Cell lithiumion polymer batteries with up to 500mA of current from an external power source It is a stand alone charging solution with just one external component required For complete functionality The AAT36814 precisely regulates battery charge voltage and current for 4 2V lithium ion polymer battery cells The adapter USB charge input constant current level can be programmed up to 500mA for rapid charging applications The AAT3681A has four basic modes for the battery charge cycle pre conditioning trickle charge constant current fast charge constant voltage and end
81. ur Cell RxLev Rx Level of Neighbour Cell C1 C1 Value of Neighbour Cell This value will be used to decide cell reselection C2 C2 Value of Neighbour Cell This value will be used to decide cell reselection MCC Mobile Country Code of Neighbour Cell MNC Mobile Network Code of Neighbour Cell LAC Location Area Code of Neighbour Cell CID Cell ID of Neighbour Cell BSIC Base Tranceiver Station Identity Code of Neighbour Cell 9 4 3 3 Reset Information This menu displays the information of reset point in source code call stack 100 9 ENGINEERING MODE Call Timer 9 4 4 Call Timer This menu displays the time of all calls including the received calls Factory Reset 9 4 5 Factory Reset This menu is to format data block in the flash memory and this procedure set up the default value in data block 101 9 ENGINEERING MODE MF TEST function is not supported 1 All auto Test 2 Backlight 4 Vibrator 5 LCD 6 Key Pad 7 Mic Speaker 8 FM radio 102 9 ENGINEERING MODE 9 4 6 MF TEST This manufacturing mode is designed to do the baseband test automatically Selecting this menu will process the test automatically and phone displays the previous menu after completing the test 9 4 6 1 auto Test LCD Backlight Vibrator Buzzer Key Pad 9 4 6 2 Backlight LCD Backlight is on for about 1 5 seconds at the same time then off 9 4 6 3 Audio This m
82. wnload is started then push start button else program will download repeatedly 86 5 DOWNLOAD 5 2 5 Download step 5 4 This region appears donwload status If download is finished PASS or FAlL message is showed 87 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM JHSmDDYG 0371 9 39 7Hw9 9242 gt 26 2 B 5 ws LYN uorsueds vivus suique 514 HON 25 500050130 BAN 5s 52 BZLX GONEZ D U 4 aa 145 13535 021 sos eu AMALLIVE 2 pilo 0 3 10M 900M s VNNSINY J gt OXDAZHINSZ 88 7 CIRCUIT DIAGRAM
83. y 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 this phone or compatibility with the network 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 this model 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 radio 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 Phone may interfere with sensitive lab

LG KG270, MG160 Service manual. www.s

Contents

Download Pdf Manuals

Related Search

Related Contents