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LG CE500 Service Manual

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Service Manual
CE500
• • • • • •
Date: September, 2005 / Issue 1.0

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Summary of Contents for LG CE500

  • Page 1 Service Manual CE500 • • • • • • Date: September, 2005 / Issue 1.0...

  • Page 2: Table Of Contents

    3.1.7 Power Management Section..17 9. Calibration ........97 3.1.8 MIDI ........... 18 A. What is Calibration? ......97 3.1.9 CE500 Battery Icon Display..19 B. Calibration program ......98 3.1.10 CE500 Battery Icon Display..20 C. AGC ..........99 3.1.11 Charging ........20 D.
  • Page 3 - 4 -...

  • Page 4: Introduction

    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 CE500 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.
  • Page 5 1. Introduction 1.2.5. Notice of Radiated Emissions The CE500 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.

  • Page 6: General Performance

    2. General Performance 2. General Performance 2.1 H/W Feature A. Hardware Feature • Class: GPRS/ EDGE Class 10 • Radio: Triple Band (850/1800/1900) • Camera: VGA 330K CMOS • Display: Main : 1.86” 128x160, 65K TFT Sub : 1.17” 96x96, 65K TFT •...

  • Page 7: Modulation And Coding Rates For Edge

    2. General Performance 2.3 Modulation and Coding Rates for EDGE • 8-PSK added for higher data rates Modulation Code Rate Bit Rate/Timeslot MCS-1 0.53 MCS-2 0.66 11.2 GMSK MCS-3 14.8 MCS-4 17.6 MCS-5 0.37 22.4 MCS-6 0.49 29.6 MCS-7 8-PSK 0.76 44.8 MCS-8...

  • Page 8: Edge Air Interface - Modulation

    2. General Performance 2.5 EDGE Air Interface - Modulation • 8-PSK modulation is used for high data rates • Signal trajectory will pass through the origin • High peak-to-average ratio • 8-PSK constellation rotates 3 /8 radians per symbol period •...
  • Page 9 2. General Performance Direct modulation transmitter Block diagram • Polar transmitter and Direct modulation transmitter comparison Direct modulation transmitter Polar transmitter A(t) Vapc A(t)+ (t) (RF) (RF) • Polar and Direct modulation transmitter Comparison Polar Transmitter Direct modulation Transmitter Nonlinear (saturated mode) Linear Susceptible Stable against antenna VSWR to antenna VSWR (EVM,Spectrum)

  • Page 10: Technical Brief

    3. Technical Brief 3. Technical Brief 3.1 Baseband Part Technical Brief The Block Diagram of the Baseband Part - 11 -...

  • Page 11: Baseband Components (Main Component Side)

    3. Technical Brief 3.1.1. BaseBand Components (Main Component Side) U602 J201 U502 Camera KEY CN401 X701 SIDE KEY J301 U101 U603 U103 S501 U207 PAD501 CN501 U101 Analog Baseband Chipset(AD6555) U103 Digital Baseband Chipset(AD6532) U207 Memory (256M Flash x 64M PSRAM) U602 Multimedia IC CN501...

  • Page 12: Baseband Components (Main Keypad Side)

    3. Technical Brief 3.1.2. BaseBand Components (Main Keypad Side) Q302 : TR (Key Backlight) U302 : Hall effect switch U203 : Analog Switch Key backlight LED MIC201 : Microphone - 13 -...

  • Page 13: Baseband Components (Fpcb)

    3. Technical Brief 3.1.3. BaseBand Components (FPCB) Camera Backup Battery Flash LED Receiver MOD Key backlight LED Speaker Vibrator - 14 -...

  • Page 14: Digital Baseband(Dbb) Processor

    3. Technical Brief 3.1.4. Digital Baseband(DBB) Processor Block diagram of the AD6532 - 15 -...

  • Page 15: Analog Main Processor (Abb)

    3. Technical Brief 3.1.5 Analog Main Processor (ABB) Block diagram of the AD6555 - 16 -...

  • Page 16: Memory

    3. Technical Brief 3.1.6 Memory • 256 Mbit flash memory + 64Mbit PSRAM • 16 bit parallel data bus • ADD0 ~ ADD23. • 2 Chip enables for Flash memory select. • RF Calibration data and battery calibration data are also stored in Flash memory area. 3.1.7 Power Management Section - VCORE : supplies Digital Baseband Processor core and D6532 digital core (0.8V ~...

  • Page 17: Midi

    3. Technical Brief 3.1.8 MIDI • The ringing source of CE500 is the MIDI. • The MIDI chip which is used in CE500 is YMU783 from YAMAHA. • YMU783 generates 64-poly MIDI sound. - 18 -...

  • Page 18: Ce500 Battery Icon Display

    3. Technical Brief 3.1.9 CE500 Battery Icon Display 5 minutes available at Tx level 5 - After discharging the battery cell for CE500 , it is like the following figure. 25 % - 1000mAh Li-ion battery , discharge current : 192.7mA(0.2C) 3.93V 3.79V...

  • Page 19: Ce500 Battery Icon Display

    3. Technical Brief 3.1.10 CE500 Battery Icon Display • Battery Bar Display : Over 3.93 ± 0.03V 1) BAR 4 2) BAR 4 → BAR 3 : 3.92 ± 0.03V 3) BAR 3 → BAR 2 : 3.79 ± 0.03V 4) BAR 2 →...

  • Page 20: Key Back-Light Illumination

    3. Technical Brief 3.1.12 KEY Back-light Illumination • KEYPAD Back-light Scheme. KEY BACKLIGHT VBAT Q302 R335 R336 R337 KEY_BACKLIGHT 1.5K IMX9T110 KEY Backlight (main PCB part) - 21 -...

  • Page 21: Sim

    3. Technical Brief 3.1.13 SIM • SIM Interface The SIM Card digital interface in ABB insures the translation of logic levels between DBB and SIM Card, for the transmission of 3 different signals: • A clock derived from a clock elaborated in DBB, to the SIM-Card (DBB_SIM_CLK -> SIM_CLK) •...

  • Page 22: Keypad

    3. Technical Brief 3.1.14 Keypad • KEYPAD Scanning Scheme (number-key). The power key is connected to AD6532(DBB) directly using ‘PWRON’. The other number-key and navigation-key is connected to AD6532(DBB) using: R350 KBC(0) KBR(5) R351 _POWERKEY CAMERA SIDE KEY VA301 VA302 AVL5M02-200 AVL5M02-200 MAIL...

  • Page 23: Rf Part Technical Brief

    3. Technical Brief 3.2. RF Part Technical Brief 3.2.1 The Block Diagram of the RF Part Base Band - 24 -...

  • Page 24: Rf Part Components

    3. Technical Brief 3.2.2 RF Part Components SW701 Antenna FL701 N701 U702 U701 X701 U704 U703 SW701 Mobile Switch Connector U704 RF Main Chip (SKY74045) U701 Power Amp Module(SKY77316) U703 PA Controller(SKY74046) X701 VCTXO, 13MHz Clock U702 2.85V Regulator FL701 FEM(EPCOS) N701 Coupler...

  • Page 25: Tx / Rx Part Description

    3. Technical Brief 3.2.3. Tx / Rx Part Description Regulator : 2.85V • Regulator - Produce 2.85V DC Power C733 RF2.85V U702 VBAT C735 RADIO_POWER Regulator Image VBAT RF2.85V U702 MIC5219-2.85YM5 RADIO_POWER C733 C709 C735 C707 (2125) 4.7u 470p (1608) Regulator Schematic - 26 -...
  • Page 26 3. Technical Brief VCTCXO • VCTCXO - Produce RF reference clock - 13MHz frequency C732 X701 13MHz CLK_Output VCTCXO Image 2V75_VTCXO X701 13MHz R715 13MHz CLK AFCDAC VCONT C734 C732 1000p (1608) VCTCXO Schematic - 27 -...
  • Page 27 3. Technical Brief RF Main Chip (SKY74045) • SLE, SCLK, SDATA - 3-wire interface with DBB SDATA: R722 SCLK: R724 SLE : R725 U704 R725 0 R724 100 RXENA V_DD SCLK TXENA HB_LB R722 SDATA XTAL_EN DATA V_LOB XTALTUNE R728 SXENA V_LNACP SXENA...

  • Page 28: Receiver Part Description

    3. Technical Brief 3.2.4 Receiver Part Description • Rx Block Diagram - 29 -...
  • Page 29 3. Technical Brief Mobile Switch & FEM (Front End Module) • FEM - Select the Path - GSM850 / DCS / PCS Tx, GSM850 / DCS / PCS Rx Rx/Tx Path GSM850 Rx Path DCS Rx Path PCS Rx Path FL701 GSM850 Tx Path DCS/PCS Tx Path...
  • Page 30 3. Technical Brief Mobile Switch & FEM (Front End Module) • From DBB, three control signals (VC1, VC2, VC3) are fed into the FEM. TP701(VC1) TP702(CC2) TP703(VC3) Control Logic Switch Mode GSM850/DFCS/PCS Rx GSM850 Tx DCS/PCS Tx Pre-burst Tx 1900 unused ❖...
  • Page 31 3. Technical Brief RF Transceiver Chip (LNA Input) • LNA input port of RF Main Chip(SKY74045) - Single ended LNA Input FL701 GSM850 Rx Path DCS Rx Path PCS Rx Path U704 Matching SKY74045 Circuit Rx I/Q signal (SKY74045) RXIP RXIN RXQP U704...

  • Page 32: Transmitter Part Description

    3. Technical Brief 3.2.5 Transmitter Part Description Tx Block Diagram CX74045 CX77316 PFD1 LPF1 TIC VCO Reference frequency I/Q Modulator Synth. IF VGA 70dB range Standard I/Q interface GSM/EDGE/IS-136 Reference voltage for TX power level and power profile Power Detector 20dB range Power Detector 20dB range Comparator CX74046...
  • Page 33 3. Technical Brief PAM - control signals • PACEN - From DBB GPO Control - Enables PA controller / PAM - 3-wire interface with PA controller • VAPCDAC - From ABB Chip Set - Controls Tx rising and falling shape and Tx Output Power U701 VAPDAC U703...
  • Page 34 3. Technical Brief Mobile Switch & FEM • FEM - Select the Path - GSM / DCS Tx, GSM Rx - Controls the FEM with VC1 & VC2 & VC3 Signal Path GSM Tx Path GSM850 Tx Path DCS/PCS Tx Path - 35 -...

  • Page 35: Troubleshooting

    4. TROUBLE SHOOTING 4. Troubleshooting BaseBand Part Troubleshooting 4.1 Power On Trouble • Trouble Shooting Setup - Connect PIF-UNION to the phone. - Set the TI-remote switch at PIF-UNION off. • Trouble Shooting Procedure - Check Battery Voltage - END_KEY Dome Switch condition - Check the output voltages of all LDOs.
  • Page 36 4. TROUBLE SHOOTING Test Point VPLL VABB VUSB VCORE VTCXO VMIC VRTC VMEM VEXT VSIM VINT - 37 -...

  • Page 37: Charging Trouble

    4. TROUBLE SHOOTING 4.2 Charging Trouble Test Point • Charging Procedure - Connecting TA & Charger Detection D102 - Control the charging Current by Q102 Typhoon_E (ABB) - Charging Current flows into the Battery • Check Points - Connection of TA R140 - Charging Current Path - Battery...
  • Page 38 4. TROUBLE SHOOTING START Voltage at VCHG of U101 The charging adaptor(TA) is out of order. = 5.2V? Change the charging adaptor Resolder R140, Q102, D102 R140, Q102, D102 well-soldered? Voltage across Replace D102 D102 = ~0.3V Charging is operating properly. Voltage across Replace the R140 R140 is ~100mV?

  • Page 39: Lcd Display Trouble

    4. TROUBLE SHOOTING 4.3 LCD Display Trouble • LCD Control signals - L_DATA(0:15), L_ADD1, MAIN_LCD_CS, L_WR - From DBB : LCD_RESET, LCD_BACKLIGHT • Check point - The assembly status of the LCD Module - The Soldering of connector - The FPCB which connects the main board and upper board. 70pin connector (CN401) LCD connector (CN3) LCD module Block Diagram...
  • Page 40 4. TROUBLE SHOOTING START LCD Module is out of order. Change the LCD Module. Refer to Power is supplied to Power On Trouble the board? The board is broken. After changing the board, Change the board. LCD Display is OK? Connection between Reconnect FPCB FPCB and boards is OK?

  • Page 41: Receiver Trouble

    4. TROUBLE SHOOTING 4.4 Receiver Trouble • Check Points - Audio signals from ABB - Audio signals to the receiver - Audio signal path(R219, R227) - Check the sound level to the speaker. - Soldering of connector & speaker/receiver - Speaker/Receiver RECEIVER and HEADSET R219 RCV_N...
  • Page 42 4. TROUBLE SHOOTING START Check the signal level of Check the soldering Replace the Main board. RCVP & RCVN at R219, R227. Are R219 & R227 ABB is out of order. these levels about 1.2V? Re-soldering R219, R227 Check again Check the contact state of Replace the receiver receiver.

  • Page 43: Speaker Trouble

    4. TROUBLE SHOOTING 4.5 Speaker Trouble Circuit Diagram CODEC_PATH_SEL C(OPEN) NO(MIDI Input) C_PWR VBAT 2V8_VEXT 2V8_VEXT VBAT CN401 C609 C613 4.7u 0.1u L_DATA0 L_DATA8 L_DATA1 L_DATA9 L_DATA2 L_DATA10 L_DATA3 L_DATA11 C612 C614 L_DATA12 L_DATA4 0.1u L_DATA13 L_DATA5 L_DATA14 L_DATA6 L_DATA7 L_DATA15 HPOUTR HSO_R...
  • Page 44 4. TROUBLE SHOOTING SETTING : Connect PIF to the phone, and Power on. Enter the engineering mode, and set "Melody on" at Buzzer of BB test menu. START Voltage across Change Main Board Check the soldering C620,C619 Internal pattern is opened Is over 2.8 V? of U603 Re-soldering U603...

  • Page 45: Microphone Trouble

    4. TROUBLE SHOOTING 4.6 Microphone Trouble Circuit Diagram 2V5_VMIC R238 CLOSE TO MIC C228 C229 R236 4.7u (1608) 2.2K CLOSE TO MIC AIN2P AUX_MICP MICP R221 R250 AIN2N AUX_MICN C110 MICP MIC201 AIN1P ABB(AD6555XBC) C232 AIN1N C113 AIN3L AIN3R C226 R220 MICN OBG-410L44-C153...
  • Page 46 4. TROUBLE SHOOTING Waveform MICP MICN START Voltage across Voltage VMIC of U101 Replace U101 R238 is about 2.5V? is about 2.5V? MIC Bias Voltage Resolder R236 & R238 Check the signal level at each side of MIC201. Replace the microphone Is it a few tens mVAC? Check the soldering of Resolder R220, R221, C226...

  • Page 47: Vibrator Trouble

    4. TROUBLE SHOOTING 4.7 Vibrator Trouble Circuit Diagram VIBRATOR VBAT D301 1SS302-T5L_F_H C305 C306 2.2u VIBRATOR R316 Q301 VIBRATOR_EN 2SC5585 Current Flow When the vibrator works, the VIBRATOR signal at this point goes High • Vibrator Operation • Check Points - Vibrator is controlled by AD6532 - VBAT - When vibrator signal is high, vibrator is enabled...
  • Page 48 4. TROUBLE SHOOTING START Check the soldering Is the voltage at pin 1 Resolder R315 of Q301 near 0V? of R315 Replace Q301 Check the soldering of Resolder CN401 CN401 Check the soldering of Resolder vibrator. vibrator at upper board Vibrator will work properly Replace Vibrator.

  • Page 49: Keypad Backlight Trouble (Main Pcb)

    4. TROUBLE SHOOTING 4.8 Keypad Backlight Trouble (Main PCB) Test Point Q302 Circuit Diagram KEY BACKLIGHT VBAT Q302 R335 R336 R337 KEY_BACKLIGHT 1.5K IMX9T110 • Check Point • Backlight Operation - KEY_BACKLIGHT signal - The keypad LED backlight is controlled with KEY_BACKLIGHT signal.
  • Page 50 4. TROUBLE SHOOTING START Is the voltage level VBAT Charge battery 3.6-4.2V? Are all LEDs LD301~LD315 Check the soldering of each R or replace LEDs not working. working? Q302 is Check the condition of Q302. If problem, Replace Q302 working? BACKLIGHT WILL WORK PROPERLY.

  • Page 51: Charging Indicator & Mod Key Backlight Trouble

    4. TROUBLE SHOOTING 4.9 Charging Indicator & MOD Key Backlight Trouble Test Point Circuit Diagram CHARGING INDICATOR VCHARGE VBAT 2V8_VMEM & MOD KEY BACKLIGHT R398 R399 100K U303 R341 KLED MODKEY_BACKLIGHT Q303 FSA4157L6X 2SC5585 R342 1.5K R352 C315 C309 R343 R344 0.01u 2.7K...
  • Page 52 4. TROUBLE SHOOTING START Charge battery Is the voltage level VBAT 3.6-4.2V? Are all LEDs LD1~LD2 Check the soldering of each R or replace LEDs not working. working? Q303 is Check the condition of Q303. If problem, Replace Q303 working? BACKLIGHT WILL WORK PROPERLY.

  • Page 53: Sim Detect Trouble

    4. TROUBLE SHOOTING 4.10 SIM Detect Trouble Test Point Circuit Diagram SIM CONNECTOR VSIM VSIM R345 C310 J301 220n GND1 SIM_RST SIM_CLK GND2 GND5 GND3 GND4 SIM_DATA J301 C311 C312 C313 1000p • Connection between SIM and DBB • Trouble Shooting Setup - SIM_CLK, SIM_DATA, SIM_RST - Insert the SIM into socket - Connect PIF to the phone, and power on.
  • Page 54 4. TROUBLE SHOOTING START Does the SIM supports 3V? Change the SIM. Our Phone supports 3V SIM only Check the condition of Resolder or replace J301 J301 Good? Check ABB Voltage of pin 1 in J301=2.85V Good? Re-download Change SIM card Does it Replace Main board SW Work? work properly?

  • Page 55: Earphone Trouble

    4. TROUBLE SHOOTING 4.11 Earphone Trouble Test Point U201 R210 R211 C212 U202 C211 R206 R207 J201 Ear-jack R212 Circuit Diagram Removing DC noise circuit, when audio path is opened. This signal comes from DBB, and when ear-jack was detected, this circuit is worked.
  • Page 56 4. TROUBLE SHOOTING START cf) PRBS : Pseudo Random Bit Sequence Insert the earphone to the handset. Earphone detect problem Does the audio Profile of the phone change to the earphone mode? Audio path problem Set the audio part of the test equipment to PRBS or continuous wave mode Set the audio part of the test...
  • Page 57 4. TROUBLE SHOOTING Earphone receiving path problem Level of C211 and Download C212 is about 1.2V Check soldering R211, Not good Re-soldering R210, C211, R211, R210, C212, J201 C211, C212, J201 Change main board Earphone detect problem Earphone detect problem Level of R212 is Level of R206 is about 2.8V?
  • Page 58 4. TROUBLE SHOOTING Earphone receiving path problem Earphone sending path problem Earphone sending path problem Re-solder f pin1 o f U201 is U201 about 2.8V? Level of R207 is Re-download about a few tens Re-solder software. or hundreds VAC? R207 Change Does it work well? Does it work well?

  • Page 59: Transflash Trouble

    4. TROUBLE SHOOTING 4.12 Transflash Trouble Test Point R560 R561 R511 S501 Circuit Diagram VTFlash Transflash Connector R510 TFLASH_DAT3 TFLASH_DETECT_MV R511 TFLASH_DETECT_DBB VBAT 2V8_VMEM VTFlash S501 SD-500873-001 DAT2_RSV TFLASH_DAT2 CD_DAT3_CS TFLASH_DAT3 CMD_DI TFLASH_CMD CLK_SCLK U504 TFLASH_CLK STBY DAT0_DO BGND TFLASH_DAT0 DAT1_RSV TFLASH_DAT1 VOUT...
  • Page 60 4. TROUBLE SHOOTING START VTFlash is 2.8V ? Check VBAT 2.8V of R561 of U504. Replace U504 Check the R560 Check the soldering or replace S501. Check level of Check R511 of TFLASH_DAT3 Tflash_DAT3 of R505. TFLASH is in : High TFLASH is out : Low Check signa Replace S501 or Change Tflash memory.

  • Page 61: Rtc Trouble

    4. TROUBLE SHOOTING 4.13 RTC Trouble Test Point Circuit Diagram R124 R123 32.768KHz_Crystal R123 OSCOUT X101 32.768KHz X100 R124 R150 OSCIN R151 MC-146_12.5pF C155 C156 START Check soldering of R123 Resolder R123, R124, X101 ,R124 ,X101 OK? Voltage of R124 Change main board (DBB-U103 problem) = 1.8V? Replace X101 and try again.

  • Page 62: Camera Trouble

    4. TROUBLE SHOOTING 4.14 Camera Trouble Block Diagram C_DATA(0:7) CAM_HS FL 407 CAM_VS CAM_VCLK Mtekvision FL 408 CN 401 (MV8602COK) CAM_RST CAM_PWRON C_PWR Charge pump • Camera Control signals • Check point - C_DATA(0:7), CAM_HS, CAM_VS, - Check the power supply.(U501) CAM_MCLK, CAM_VCLK, CAM_SCK, - Check the soldering of the component CAM_SDA, CAM_PWRON, CAM_RST...
  • Page 63 4. TROUBLE SHOOTING START Does LCD work properly? Go to the LCD Trouble Check CN401 soldering Set the Camera button ON Check power 2.8V Replace U501 (At C501) Re-solder CN401 Change the Camera module - 64 -...

  • Page 64: Camera Flash Trouble

    4. TROUBLE SHOOTING 4.15 Camera Flash Trouble Test Point Circuit Diagram C507 C508 C504 VBAT VOUT_FL FLASH_LED C505 VOUT_BL MLED C509 PGND ISINK1 MLED1 FLASH_EN EN_FLSH ISINK2 MLED2 ISINK3 MLED3 R504 LCD_BACKLIGHT EN_SET ISINK4 MLED4 C505 U502 AAT2806IXN-4.5-T1 R502 R501 U502 C506 R509...
  • Page 65 4. TROUBLE SHOOTING START Set the Camera Flash ON Check VBAT Flash LED Replace PCB (C505) : 4.1~3.7V working? Camera flash will work Properly Check FLASH_EN signal (R502) : High Check FLASH_LED Replace U502 (C506): High Replace Camera_Module - 66 -...

  • Page 66: Rx Part Trouble Shooting

    4. TROUBLE SHOOTING RF Part Troubleshooting 4.16 RX Part Trouble Shooting FL701 U701 U704 U703 START HP8960 : Test mode 190 CH, 5 level setting (TCH) 190 CH, -60dBm setting (BCCH) Spectrum analyzer setting Oscilloscope setting 1. Check Regulator Circuit 4.
  • Page 67 4. TROUBLE SHOOTING Checking Regulator C733 Check Pin5 Of U404. Check Pin 1 Of U405. RF2.85V U702 Changing the Board Pin 3. High ? RF 2.85V OK? VBAT Regulator Circuit is OK Replace U702 See next Page to check C735 VCTCXO RADIO_POWER VBAT...
  • Page 68 4. TROUBLE SHOOTING Checking VCTCXO Circuit Test Point C732 X701 13MHz CLK_Output Circuit Diagram 2V75_VTCXO X701 13MHz R715 AFCDAC 13MHz CLK VCONT C734 C732 1000p (1608) VCTCXO Schematic - 69 -...
  • Page 69 4. TROUBLE SHOOTING Checking VCTCXO Circuit Graph (a) Graph (b) Check t he Output Frequency Refer to Graph (b) VCTCXO Circu it is O K 13 MHz O.K? See next Page to ch eck FEM & Mobile SW Check the Supply Voltage Refer to Graph (a ) Changing X 701 2.75V OK?
  • Page 70 4. TROUBLE SHOOTING 1. Checking PLL Control Signal Test Point U704 SDATA SCLK Graph (a) Check the SLE. Level is High? Download the SW Check S_DATA, S_CLK, SLE. Download the SW Similar? Check if there is Any Major Difference Refer to Graph (a) Control Signal is OK See next Page to check FEM &...
  • Page 71 4. TROUBLE SHOOTING Checking FEM & Mobile Switch Test Point TP701(VC1) TP702(CC2) TP703(VC3) Procedure • Check Ant. SW control signals at TP701/702/703. - SIMC Switch Mode GSM850/DFCS/PCS Rx GSM850 Tx DCS/PCS Tx Pre-burst Tx 1900 unused • If Ant. Control Signals are differ to above logic table, change FL701. - 72 -...
  • Page 72 4. TROUBLE SHOOTING Checking FEM & Mobile Switch 3) Check RF frequency at each point(1,2,3,4,5). Can you observe good RF signal at proper frequency? • GSM850 190Ch. : 881.6MHz • GSM1800 700Ch. : 1652.8MHz • GSM1900 661Ch. : 1960MHz 4) Check RF Power at each point. Can you observe good RF signal at proper frequency? At check point 1&...
  • Page 73 4. TROUBLE SHOOTING Checking RF IQ Test Point Check the RX I/Q signals. Check if there is Any Major Difference Refer to Graph (a) & (b) RXIP RXIN RXQP Similar? Replace U403 U704 RXQN Redownload the Software and calibrate Graph (a) Graph (b) - 74 -...

  • Page 74: Tx Part Trouble Shooting

    4. TROUBLE SHOOTING 4.17 TX Part Trouble Shooting FL701 U701 U704 U703 START HP8960 : Test mode 190 CH, 5 level setting (TCH) 190 CH, -60dBm setting (BCCH) Spectrum analyzer setting 4. Check Oscilloscope setting FEM & Mobile SW 1. Check Regulator Circuit 5.
  • Page 75 4. TROUBLE SHOOTING 1. Checking Regulator Circuit - 2.85V Regulator Out 2. Checking VCTCXO Circuit - 13MHz Clock Output 3. Checking PLL Control Signal - SEN, SCLK, SDATA Same as RX Trouble Shooting Procedure No.1 ~3. 4. Checking FEM & Mobile Switch VC1,VC2,VC3 Same as RX Trouble Shooting Procedure No.4 Tx Output Power...
  • Page 76 4. TROUBLE SHOOTING 5. Check PAM Circuit(PAM control signals) U701 VAPDAC U703 PACEN Graph (a) Similar? Check VAPC and PACEN Check if there is Any Major Difference or not Download S/W Refer to Graph (a). Go to Next Step - 77 -...
  • Page 77 4. TROUBLE SHOOTING 5. Check Tx I/Q Test Point TXIP TXIN TXQP U704 TXQN - 78 -...

  • Page 78: Download

    – The older version software of the phone can be replaced to the newer version. B. The Environment of Downloading Software 1. In case of using the Data Kit • Preparation – Target Handset (CE500) – Data kit – Battery – IBM compatible PC supporting RS-232 with Windows 98 or newer •...
  • Page 79 5. DOWNLOAD 2. In case of using the PIF • Preparation – Target Handset (CE500) – PIF – RS-232 Cable and PIF-to-Phone interface Cable – Power Supply or Battery – IBM compatible PC supporting RS-232 with Windows 98 or newer •...
  • Page 80 5. DOWNLOAD CE500 Handset uses software download program ‘SpeeDo’ You want to download software to CE500 handset, please do to follow shown as below. 1. Execution SpeeDo - Execute Speedo27.EXE And then a window will be shown as below. - 81 -...
  • Page 81 5. DOWNLOAD 2. Port Set • The USB to connect to RS232C cable in the computer, COM Port set (Select correct port number) • Rate with Max set. (or 460800) 3.Target Set • Model selects Monaco • Do not check ‘BIN’ 4.Operating Mode •...
  • Page 82 • Check 8KB (Unnecessary change) 6. Files • Choose Software files to be downloaded • Press “...” button and select a software files to download in browser • ADI Solution(CE500) needs 2 mot files, for example ce500n.mot and AlchemyData.mot - 83 -...
  • Page 83 5. DOWNLOAD 7. Press “Start” button • Press “Start” button and you will see the window as below. • After start, addresses of Device & Code becomes automatic set • Waiting to complete download and test handset If you check “OWUD” option, delete saved cal data and write default cal data with downloading software.

  • Page 84: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM - 85 -...
  • Page 85 Note - 86 -...

  • Page 86: Circuit Diagram

    U102 BH18MA3WHFV 06/15 Designer YH.HEO VOUT1 2005 VOUT2 NOISE STBY PPAD Checked YH.HEO DRAWING MAIN NAME C161 C160 C150 Approved YM.CHO 0.01u DRAWING Rev. 1.1 Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. - 87 -...
  • Page 87 R220 MICN OBG-410L44-C153 0.1u R260 Checked HJ.YANG R237 100K DRAWING C230 Memory, Audio C231 2.2K VA205 VA204 C225 NAME 0.01u Approved YM.CHO DRAWING Rev. 1.1 Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. - 88 -...
  • Page 88 CN302 MODEL 06/15 Designer SW.PARK 2005 Checked HJ.YANG VA308 VA309 VA310 DRAWING Key, IrDA, SIM, Folder... AVL5M02-200 AVL5M02-200 AVL5M02-200 NAME Approved YM.CHO DRAWING Rev. 1.1 Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. - 89 -...
  • Page 89 MLED Section Date Sign & Name Sheet/ CE500 MODEL Sheets 06/15 Designer SW.PARK 2005 Checked YH.HEO DRAWING LCD Interface NAME Approved YM.CHO DRAWING Rev. 1.1 Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. - 90 -...
  • Page 90 DAT1_RSV Sheets VOUT TFLASH_DAT1 06/15 MODEL Designer SW.PARK BH28FB1WHFV 2005 C530 C511 R505 C531 C532 C533 470K Checked YH.HEO 0.1u DRAWING IO, T-Flash... NAME Approved YM.CHO DRAWING Rev. 1.1 Iss. Notice No. Date Name LG Electronics Inc. - 91 -...
  • Page 91 Date Sign & Name Sheet/ CE500 MODEL Sheets 06/15 Designer HO. CHOI 2005 Checked HO. CHOI DRAWING MIDI, Video NAME Approved YM.CHO DRAWING Rev. 1.1 Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. - 92 -...
  • Page 92 06/15 U702 MIC5219-2.85YM5 HS.LEE Designer 2005 RADIO_POWER JS.YOO Checked C733 DRAWING RF_Skyworks C709 C735 C707 (2125) 4.7u 470p NAME (1608) YM.CHO Approved Rev. 1.1 DRAWING Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. - 93 -...

  • Page 93: Pcb Layout

    8. PCB LAYOUT - 94 -...
  • Page 94 8. PCB LAYOUT - 95 -...
  • Page 95 - 96 -...

  • Page 96: Calibration

    9. CALIBRATION 9. Calibration RF Calibration A. What is Calibration? 1. What’s the Rx Calibration Find proper AGC Gain to make the same Rx Power fed into the Base Band Part regardless of Antenna Input Level Can make report correct RSSI level Part X(Input Level)+G(Gain)=Y 2.

  • Page 97: Calibration Program

    9. CALIBRATION B. Calibration program 1. Calibration program • Under windows 98 or 2k • Support win xp 2. Required Equipments • LGE PIF JIG, Serial Cable, Data Cable • Agilent 8960 (Call Setting Instrument) • Power Supply Screen → Cable loss : Enter the RF cable loss GSM900, DCS Screen →...

  • Page 98: Agc

    9. CALIBRATION C. AGC This procedure is for Rx calibration. In this procedure, We can get RSSI correction value. Set band GSM and press Start button the result window will show correction values per every power level and gain code and the same measure is performed per every frequency.

  • Page 99: Calibration Equipment Setup

    9. CALIBRATION G. Calibration Equipment Setup GPIB control Power Supply CE500 Battery Simulator - 100 -...

  • Page 100: What Is Standalone Test

    9. CALIBRATION H. What is Standalone Test? • What’s the Standalone Test? • Set the Phone to Perform only Tx or Rx mode • During the Normal Call • During Rx Standalone • During Tx Standalone I. Standalone Test Setup ❖Set the COM Port.

  • Page 101: Tx Standalone Test

    9. CALIBRATION J. Tx Standalone Test 1. Test Equipment Setting • Set Test equip. to “BCCH + BCH Only” • Set TCH CH and PWR Level - You can set any CH and power level that you want to test BCCH + BCH Only - 102 -...

  • Page 102: Rx Standalone Test

    9. CALIBRATION K. Rx Standalone Test 1. Test Equipment Setting • Set Test equip. to “CW Generator” • Set RF Frequency - RX Frequency + 67.7 kHz - Ex.) GSM 190Ch : 881.6MHz + 67.7KHz = 881.6677MHz • Set RF Power -60dBm CW Mode - 103 -...

  • Page 103: Standalone Test Equipment Setup

    9. CALIBRATION L. Standalone Test Equipment Setup Oscilloscope - 104 -...

  • Page 104: Exploded View & Replacement Part List

    10. EXPLODED VIEW & REPLACEMENT PART LIST 10.1 EXPLODED VIEW Part name Part nunber WINDOW,LCD (MAIN) MWAC0049802 CAP ASSY ACAZ0002601 CAP ASSY ACAZ0002401 CAP ASSY ACAZ0002501 SCREW MACHINE GMZZ0015101 COVER ASSY,FOLDER(LOWER) ACGH0031001 VIBRATOR,MOTOR SJMY0003602 SPEAKER SUSY0016001 RECEIVER SURY0005603 SVLY0019501 HINGE,FOLDER MHFD0009901 CAMERA SVCY0004001...
  • Page 105 - 106 -...

  • Page 106: Replacement Parts

    CE500_Cap Screw Assy(FOLDER_R) Black MCCH00 CAP,SCREW MCCH0046101 CE500 CGRBK Cap Screw_R (Folder) Black MTAZ00 TAPE MTAZ0060601 CE500 CGRBK Cap screw L-R Tape (Folder) ACAZ01 CAP ASSY ACAZ0002501 CE500_Cap Screw Assy (FOLDER_L) Black MCCH00 CAP,SCREW MCCH0046001 CE500 CGRBK Cap screw_L (Folder)
  • Page 107 MDAD0010201 CE500 CGRBK Camera Deco Silver MTAA00 TAPE,DECO MTAA0072801 CE500 CGRBK Camera Deco Tape ADCA00 DOME ASSY,METAL ADCA0031001 CE500 CGRBK MOD Key Metal Dome Assy Silver AWAB00 WINDOW ASSY,LCD AWAB0014901 CE500 CGRBK Sub window Black BFAA00 FILM,INMOLD BFAA0027301 CE500 CGRBK Inmold film...
  • Page 108 CAP,SCREW MCCH0046201 CE500 CGRBK Cap Screw Black MLAK00 LABEL,MODEL MLAK0006901 ADCA00 DOME ASSY,METAL ADCA0031101 CE500 CGRBK Main Keypad Metal Dome Assy Silver CN301 DOME ASSY,METAL ADCA0031301 CE500 CGRBK Camera Key pcb_dome Assy Silver CN302 DOME ASSY,METAL ADCA0031201 CE500 CGRBK Side key pcb_dome Assy...

  • Page 109: Main Component

    10. EXPLODED VIEW & REPLACEMENT PART LIST 10.2 Replacement Parts Note: This Chapter is used for reference, Part order <Main component> is ordered by SBOM standard on GCSC Location Level Description Part Number Sepcification Color Remark SACY00 PCB ASSY,FLEXIBLE SACY0033501 Black SACE00 PCB ASSY,FLEXIBLE,SMT...
  • Page 110 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP FILTER,BEAD,CHIP SFBH0007101 120 ohm,1005 ,Ferrite Bead DIODE,LED,CHIP EDLH0006001 Blue ,1608 ,R/TP ,Blue SMD LED DIODE,LED,CHIP EDLH0006001 Blue ,1608 ,R/TP ,Blue SMD LED DIODE,LED,MODULE EDLM0007701 WHITE ,1 LED,2.0*1.5*0.45 ,R/TP ,...
  • Page 111 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark C110 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C111 CAP,CERAMIC,CHIP ECCH0000186 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C112 CAP,CERAMIC,CHIP ECCH0000113 18 pF,50V,J,NP0,TC,1005,R/TP C113 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C114 CAP,CERAMIC,CHIP ECCH0000120...
  • Page 112 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark C147 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C148 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C149 CAP,CERAMIC,CHIP ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP C150 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C151 CAP,CERAMIC,CHIP ECCH0000182...
  • Page 113 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark C223 CAP,CERAMIC,CHIP ECCH0000159 22 nF,16V,K,X7R,HD,1005,R/TP C224 CAP,CERAMIC,CHIP ECCH0000159 22 nF,16V,K,X7R,HD,1005,R/TP C225 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP C226 CAP,CERAMIC,CHIP ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP C227 CAP,CERAMIC,CHIP ECCH0000133...
  • Page 114 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark C514 CAP,CERAMIC,CHIP ECCH0000117 27 pF,50V,J,NP0,TC,1005,R/TP C515 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C516 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP C517 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C518 CAP,CERAMIC,CHIP ECCH0004904...
  • Page 115 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark C707 CAP,CERAMIC,CHIP ECCH0000139 470 pF,50V,K,X7R,HD,1005,R/TP C708 INDUCTOR,CHIP ELCH0005014 5.6 nH,S ,1005 ,R/TP , C709 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP C710 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP C712 CAP,CERAMIC,CHIP ECCH0000185 5.6 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C714...
  • Page 116 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark C757 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C758 CAP,CERAMIC,CHIP ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP C759 CAP,CERAMIC,CHIP ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP C760 CAP,CERAMIC,CHIP ECCH0000182...
  • Page 117 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark Q101 TR,FET,P-CHANNEL EQFP0005101 SC75-6 ,1.6 W,-20 V,-4.2 A,R/TP ,P- CHANNEL FET 2.9*1.9*0.8(t) ,.7 W,20 V,-6 A,R/TP ,NDC652P Q102 TR,FET,P-CHANNEL EQFP0004201 upgrade(substitution) item, Pb free Q103 TR,BJT,NPN EQBN0004801 SMT6 ,0.2 W,R/TP ,...
  • Page 118 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark R220 RES,CHIP ERHY0000220 100 ohm,1/16W,J,1005,R/TP R221 RES,CHIP ERHY0000220 100 ohm,1/16W,J,1005,R/TP R222 RES,CHIP ERHY0000208 22 ohm,1/16W,J,1005,R/TP R223 RES,CHIP ERHY0000208 22 ohm,1/16W,J,1005,R/TP R224 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R225 RES,CHIP ERHY0000280...
  • Page 119 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark R505 RES,CHIP ERHY0000292 470K ohm,1/16W,J,1005,R/TP R508 RES,CHIP ERHY0000280 100K ohm,1/16W,J,1005,R/TP R509 RES,CHIP ERHY0000280 100K ohm,1/16W,J,1005,R/TP R511 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R512 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R513 RES,CHIP ERHY0000203...
  • Page 120 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark R620 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP R621 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP R701 RES,CHIP ERHY0000214 51 ohm,1/16W,J,1005,R/TP R702 CAP,CERAMIC,CHIP ECCH0000107 6 pF,50V,D,NP0,TC,1005,R/TP R703 RES,CHIP,MAKER ERHZ0003801 5.1 ohm,1/16W ,J ,1005 ,R/TP R704 RES,CHIP,MAKER ERHZ0000469...
  • Page 121 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark R737 RES,CHIP ERHY0000271 39K ohm,1/16W,J,1005,R/TP R739 RES,CHIP ERHY0000296 1M ohm,1/16W,J,1005,R/TP R740 RES,CHIP ERHY0000237 680 ohm,1/16W,J,1005,R/TP R741 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP R742 THERMISTOR SETY0001201 NTC ,22000 ohm,SMD ,1005, ECTH 1005 Series, Pb Free R750 RES,CHIP ERHY0000201...
  • Page 122 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA202 RES,VARIABLE,ETC ERVZ0000101 Free ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA203 RES,VARIABLE,ETC ERVZ0000101 Free ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA501...
  • Page 123 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark LD313 DIODE,LED,CHIP EDLH0006001 Blue ,1608 ,R/TP ,Blue SMD LED LD314 DIODE,LED,CHIP EDLH0006001 Blue ,1608 ,R/TP ,Blue SMD LED LD315 DIODE,LED,CHIP EDLH0006001 Blue ,1608 ,R/TP ,Blue SMD LED Q301 TR,BJT,NPN EQBN0007101...
  • Page 124 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark R327 RES,CHIP ERHY0000213 47 ohm,1/16W,J,1005,R/TP R328 RES,CHIP ERHY0000213 47 ohm,1/16W,J,1005,R/TP R329 RES,CHIP ERHY0000213 47 ohm,1/16W,J,1005,R/TP R330 RES,CHIP ERHY0000213 47 ohm,1/16W,J,1005,R/TP R331 RES,CHIP ERHY0000213 47 ohm,1/16W,J,1005,R/TP R332 RES,CHIP ERHY0000213...
  • Page 125 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Sepcification Color Remark ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA301 RES,VARIABLE,ETC ERVZ0000101 Free ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA302 RES,VARIABLE,ETC ERVZ0000101 Free ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA303...

  • Page 126: Accessory

    Note: This Chapter is used for reference, Part order is ordered by SBOM standard on GCSC Location Level Description Part Number Sepcification Color Remark 3.7 V,1000 mAh,1 CELL,PRISMATIC(523450) ,CE500 SBPL00 BATTERY PACK,LI-ION SBPL0077801 CGRSV, Innerpack(4-Terminal, Thermister) SGDY00 DATA CABLE SGDY0005601 DK-40G ,K8000 24PIN I/O + USB A TYPE...
  • Page 127 Note - 128 -...

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