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LG LG9200 Service Manual

LG LG9200 Service Manual

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Service Manual
LG9200
Date: October, 2005 / Issue 1.0

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Summary of Contents for LG LG9200

  • Page 1 Service Manual LG9200 Date: October, 2005 / Issue 1.0...

  • Page 2: Table Of Contents

    C. What is Calibration? .......127 3.1.12 SIM ..........21 D. Calibration program......128 3.1.13 Keypad........22 E. Calibration Equipment Setup..129 F. Calibration LG9200 with 3.2. RF Part Technical Brief......24 HOT_KIMCHI .........130 3.2.1 The Block Diagram of the RF Part ..24 3.2.2 RF Part components .......25 10.
  • 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 LG9200 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 LG9200 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 Hardware Feature • GSM 850 / PCS 1900 Dual Band • Main LCD : 65K Color STN Single LCD(128 X 160) • 1000mAh Li-Ion Battery • Camera VGA, 640x480 pixels • 3V plug-in type SIM card socket •...

  • Page 7: Technical Brief

    3. Technical Brief 3. Technical Brief 3.1 Baseband Part Technical Brief The Block Diagram of the Baseband Part - 8 -...

  • Page 8: Baseband Components

    3. Technical Brief 3.1.1. BaseBand Components (Main Component Side) CN701 J201 U202 U701 U201 U101 U601,U603 X101 J401 U102 CN401 U401 CN402 U101 Analog Baseband Chipset (IOTA) U102 Digital Baseband Chipset (Calypso) X101 Crystal (32.768KHz Oscillator) U201 Melody IC (64 Poly) U202 Analog Switch (Single) U401...
  • Page 9 3. Technical Brief 3.1.2. BaseBand Components (Main Keypad Side) SIDE KEY pad U602 : EL charge pump EL key backlight pad CN301 : B-to-B connector (main~slide) U302 : Hall effect switch - 10 -...

  • Page 10: Baseband Components

    3. Technical Brief 3.1.3. BaseBand Components (Silde parts) CN801 : ZIF connector (LCD) U802 : WLED charge pump CN901 Key backlight LED : B-to-B connector (main~slide) - 11 -...

  • Page 11: Processor

    3. Technical Brief 3.1.4. Digital Baseband(DBB) Processor The Internal Architecture of the Calypso G2(HERCROM400G2) - 12 -...

  • Page 12: Analog Main Processor

    3. Technical Brief 3.1.5 Analog Main Processor (ABB) TWL3014 Functional Block Diagram • Applications include GSM 850, 900, DCS 1800, PCS 1900 Cellular Telephones • Voice Coder/Decoder (CODEC) • Baseband CODEC single and multislot with I/Q RF Interface • Auxiliary RF Converters •...

  • Page 13: Memory

    3. Technical Brief 3.1.6 Memory Block diagram • Memory used LG9200 is designed by TOSHIBA • Mixed Multi-Chip Package containing a 64M pSRAM and 192M Flash Memory • MCP(Multi-Chip Package) Features - Power Supply Voltage of 2.7 to 3.3 V - Operating Temperature of -30°C to 85°C...

  • Page 14: Voltage Regulation (Ldo)

    3. Technical Brief 3.1.7 Voltage Regulation (LDO) Voltage Supply System Block Diagram • VRDBB • VRIO - Provides the power to the DBB(Calypso) Core - Provides the power to the IRDA, etc - 1.5V / 120mA max. - 2.8V / 100mA max. •...

  • Page 15: Midi

    3. Technical Brief 3.1.8 MIDI • The ringing source of LG9200 is the MIDI. • The MIDI chip which is used in LG9200 is YMU788 from YAMAHA. • YMU788 generates 64-poly MIDI sound. - 16 -...

  • Page 16: Charging

    3. Technical Brief 3.1.9 Charging • Charging method : CC-CV • Low battery alarm - Idle : 3.62V • Charger detect voltage : 4.0V - Dedicated : 3.50V • Charging time : about 2h • Switch-off voltage : 3.35V • Icon stop current : 100mA •...
  • Page 17 3. Technical Brief 3.1.10 KEY Back-light Illumination • KEYPAD Back-light Scheme(slide part). - There are 10 Deep Blue LEDs in slide Board for ‘Number-key’. - Keypad Back-light is driven by ‘LEDB’ and ‘SOFTKEY_LED’ line from IOTA . VBAT VBAT SOFTKEY_LED LEDB KEY Backlight (main PCB part) - 18 -...

  • Page 18: Key Back-Light Illumination

    3. Technical Brief KEY Back-light Illumination • KEYPAD Back-light Scheme (main part). - There is EL backlight pad for ‘Qwerty-key’. - Keypad Back-light is driven by ‘KEY2’ line from IOTA . KEY2 2.2mH L601 1500uH U602 1DDD365AA-M02 OUT607 R619 OUT608 BASE VOUT OUT606...

  • Page 19: Camera

    3. Technical Brief 3.1.11 Camera • CAMERA Interface. Allows you to use the built-in camera to take photos with the phone. - The phone encodes up to 640 x 480 size with free size support Main LCD CL761A FPCB Camera IC Camera Sensor Built-in Camera BLOCK DIAGRAM...

  • Page 20: Sim

    3. Technical Brief 3.1.12 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 (DBBSCK -> SIM_CK) - A reset signal from DBB to the Sim Card (DBBSRST ->...
  • Page 21 3. Technical Brief 3.1.13 Keypad (1) • KEYPAD Scanning Scheme (number -key). The power key is connected to Calypso(DBB) directly using ‘PWON’. The other number-key and navigation-key is connected to Calypso(DBB) using: - KBR (4:0) input pins for row lines - KBC (4:0) output pins for column lines KB801 PWON...

  • Page 22: Keypad

    3. Technical Brief Keypad • KEYPAD Scanning Scheme (qwerty-key). The qwerty-key is connected to Calypso(DBB) using two key mux chips and: - KBR (4:0) input pins for row lines - KBC (4:0) output pins for column lines FL601 CSPEMI306A R601 KBR(1) FILTER1-1 FILTER1-2...

  • 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 - 24 -...

  • Page 24: Rf Part Components

    3. Technical Brief 3.2.2 RF Part components • SW501 : Mobile Switch • U501 U502 : Dual And Gate • U502 : Regulator SW501 • U503 : SKY77328 - Power Amp Module U501 FL503 • U504 : TRF6151C(RITA) U503 - RF Main chip •...

  • Page 25: Tx / Rx Part Description

    3. Technical Brief 3.2.3. Tx / Rx Part Description (1) 1. Tx/Rx Part component Description ➀ Regulator • Regulator - Produce 2.85V DC Power - Support DC Power to every RF component except PAM U502 2.85V Output Tx / Rx Part Description(2) 1.
  • Page 26 3. Technical Brief Tx / Rx Part Description(3) 1. Tx/Rx Part component Description ➂ RF Main Chip (TRF6151C) • PDNB, _S_EN, S_CLK, S_DATA - From DBB Main Chip Set - Contains information all about ARFCN, voice data, user information etc. U504 - RF Chips operate according to these signals...
  • Page 27 3. Technical Brief 3.2.4. Receiver Part Description(1) 1. Rx Block Diagram TRF6151C RX SAW EFCH881MTCA1 RXIN RXIP GSM850 869.2~893.8 MHz PCS1900 1930.2~1989.8 MHz RXQN EFCH1960TCA1 MOBILE RXQP SWITCH KMS-510 N div L div GSM850 : L=4 26MHz TCXO Phase PCS1900 : L=2 Comp.

  • Page 28: Receiver Part Description

    3. Technical Brief Receiver Part Description(2) 2. Rx Part component Description ➀ Mobile Switch & Ant Switch • Antenna Switch - Select the Path - GSM / PCS Tx, GSM / PCS Rx - From DBB, three control signals (ANT_SW, ANTSW_TXRX, ANTSW_BAND) are fed into the Dual AND Gate GSM/PCS Rx Path...
  • Page 29 3. Technical Brief Receiver Part Description(3) 3. Rx Part component Description ➀ Mobile Switch & Ant Switch • Antenna SW control Signals - VC1, VC2 control Antenna SW 2pin 11pin • Control Signal Logic GSM Tx PCS Tx GSM/PCS Rx High High - 30 -...
  • Page 30 3. Technical Brief Receiver Part Description (4) 4. Rx Part component Description ➁ Band Selection Filter • Band Selection Filter - Cuts the out of band frequency For GSM : 869MHz 894MHz For PCS : 1930MHz 1990MHz - Insertion Loss - For GSM : ~-2.5dB - For DCS : ~-3dB - 31 -...
  • Page 31 3. Technical Brief Receiver Part Description(5) 2. Rx Part component Description ➂ RF Transceiver Chip (LNA Input) • LNA input port of RF Main Chip(TRF6151C) - Balanced-type LNA Input GSM LNA Input PCS LNA Input TRF6151C Matching TRF6151C Circuit - 32 -...
  • Page 32 3. Technical Brief Receiver Part Description(6) 2. Rx Part component Description ➃ RX Local signal (TRF6151C) Divider for GSM/DCS Divider GSM850` : PCS1900 : TXVCO RX GSM850 [869.2 ~ 893.8 MHz] : RF1 [3476.0 ~ 3575.2 MHz], L=4 GSM850 RF1 : 1737.8~1787.8MHz RF PLL PCS1900...
  • Page 33 3. Technical Brief 3.2.5 Transmitter Part Description(1) 1. Tx Block Diagram - 34 -...

  • Page 34: Transmitter Part Description

    3. Technical Brief Transmitter Part Description(2) 2. Tx Part component Description ➀ Tx I/Q signal from ABB signal U102 TXQP TXQN TXIN TXIP - 35 -...
  • Page 35 3. Technical Brief Transmitter Part Description(3) 2. Tx Part component Description ➂ PAM - input and output signals • Power Amp Module - Amplifies Tx Signal from TRF6151C • Tx Carrier Frequency - GSM : 824 ~ 849MHz - PCS : 1850 ~ 1910MHz U503 VBAT - 36 -...
  • Page 36 3. Technical Brief Transmitter Part Description(4) 2. Tx Part component Description ➃ PAM - control signals • PA_ON - From DBB Chip Set - Enables Tx Path • PA_Band - From DBB Chip Set - Select PAM operating band U503 - Low : GSM selected - High : PCS selected •...
  • Page 37 3. Technical Brief Transmitter Part Description(5) 2. Tx Part component Description ➄ Mobile Switch & Ant Switch • Antenna Switch - Select the Path - GSM / PCS Tx, GSM / PCS Rx - From DBB, three control signals (ANT_SW, ANTSW_TXRX, ANTSW_BAND) are fed into the Dual AND Gate - Dual AND Gate Controls the Ant SW with...

  • Page 38: Troubleshooting

    4. TROUBLE SHOOTING 4. Troubleshooting BaseBand Part Troubleshooting 4.1 Power On Trouble (1) • Power On Sequence - Connecting Battery - Power-On Key Detection - END_ON_OFF signal goes to ABB and then ABB reset DBB by ON_OFF signal - ON_OFF turn low(0V) to HIGH(2.8V) and it resets Calypso(DBB). - All LDOs are turned on.
  • Page 39 4. TROUBLE SHOOTING 4.1.1 Charging Trouble(1) • Charging method : CC-CV • Low battery alarm - Idle : 3.62V • Charger detect voltage : 4.0V - Dedicated : 3.50V • Charging time : about 2h • Switch-off voltage : 3.35V •...

  • Page 40: Charging Trouble

    4. TROUBLE SHOOTING Charging Trouble(2) • Block Diagram Charging Current FB401 Q401 VCHG FB402 VCHG ICTL Battery R432 IOTA PCHG U101 D402 VCCS R435 VBATS CN402 VBAT C411 CN401 • Charging Procedure • Trouble Shooting Setup - Connecting TA & Charger Detection - Connect Battery &...
  • Page 41 4. TROUBLE SHOOTING Charging Trouble (3) START Reso ld er the CN402. I/O Connect or (CN402) (pin 4,5:VCHG , is w ell-soldered? pin 12,19:GND) The TA is out of Volt age at pin 4,6 of Q401 or der. = 5.2 V ? Change the TA.
  • Page 42 4. TROUBLE SHOOTING 4.1.2 LCD Display Trouble (1) If the FPCB has a problem, the control signals for LCD cannot be transmitted properly. CN801 CN301 CN901 FPCB Main PCB Slide PCB Check soldering around connector • LCD Control Signals From Main Board - MAIN_CS, LCD_ID, _WR, LCD_RESET, A(1),LEDB, DATA(0)~DATA(15) •...

  • Page 43: Lcd Display Trouble

    4. TROUBLE SHOOTING LCD Display Trouble (2) • Block Diagram EMI Filter D(0) ~ D(15) LCD_ID LCD_RESET Calypso CRC Filter A(1) CN301 FPCB CN901 CN801 (U101) MAIN_CS LEDB LCD Module B-to-B B-to-B Connector Connector Connector Main Board Slide Board - 44 -...
  • Page 44 4. TROUBLE SHOOTING LCD Display Trouble (3) START LCD Mo dule is out of order. Change the LCD Mod ule. Refer to Pow er is supplied to Power On Tr ouble the boa rd? The boa rd is br ok en. Afte r changing the boa rd, Change the boa rd.

  • Page 45: Speaker/Receiver Trouble

    4. TROUBLE SHOOTING 4.1.3 Speaker/Receiver Trouble (1) • Block Diagram Main Board Slide Board SPK_EN Calypso U102 Receiver RCV_N EAR_N EAR_N R292 CN301 CN901 FPCB IOTA C292 U101 EAR_P RCV_P EAR_P U202 MAX4624 R291 C291 C293 B-to-B B-to-B R209 Connector Connector C215 SPKN...
  • Page 46 4. TROUBLE SHOOTING Speaker/Receiver Trouble (2) Check soldering U101 or contacting this point ! CN901 CN301 R291 : RCV_P R292 : RCV_N CN201 Check Audio signal here ! RCV_N and RCV_P - 47 -...
  • Page 47 4. TROUBLE SHOOTING Speaker/Receiver Trouble (3) • Receiver Trouble shooting setup • Speaker Trouble Shooting Setup - Initialize GSM MS test equipment. - Connect PIF to the phone, and power on. - Connect PIF-UNION and power on. - Enter the engineering mode, and go to - Make a test call to 112.
  • Page 48 4. TROUBLE SHOOTING Speaker/Receiver Trouble (4) 1. Receiver Trouble START Receiv er i s out of ord er. Set audio pa rt at test equipment Change th e Receiver. as PRBS or continuous wave, not echo. Set the audio vo lu me max. Solde ring of Reso ld er Receiver is O K?
  • Page 49 4. TROUBLE SHOOTING Speaker/Receiver Trouble (5) 2. Speaker Trouble START Enter into Engineering Mode and go to menu ìBaseband => Alert => Ringî Main boa rd is out of or der. Does sin e wave appear V_CAM is 2.8V? Change the boa rd. at C217? Conne ction be twe en Melody IC is out of or der.

  • Page 50: Microphone Trouble

    4. TROUBLE SHOOTING 4.1.4 Microphone Trouble (1) • Block Diagram MICBIAS R224 R225 IOTA MICP C237 U101 C239 C240 MICN C241 • Microphone Signal Flow • Check Points - MIC is enable by MICBIAS - Microphone bias - MICBIAS, MICP, MICN signals from - Audio signal level of the microphone IOTA(ABB) - Soldering of components...
  • Page 51 4. TROUBLE SHOOTING Microphone Trouble (2) • Trouble Shooting Setup • Trouble Shooting Procedure - Initialize GSM MS test equipment. - Check the bias of the microphone. - Connect PIF-UNION to the phone, and - Check the audio signal path. power on.
  • Page 52 4. TROUBLE SHOOTING Microphone Trouble (4) START Conne ct the hands et to ne twor k equipme nt and s etup c all. The vo lt age of R224 Re-solder t he R224. The so ld erin g of R224 is OK? is 2.0V? Check t he sig nal level at pin 1,2 of the MIC afte r putting a udio s igna l into the MIC.
  • Page 53 4. TROUBLE SHOOTING 4.1.5 Vibrator Trouble (1) • Block Diagram VBAT VB401 D401 YMU788 U201 Vibrator R433 R434 Q402 VIBRATOR R436 • Vibrator Operation • Check Points - Vibrator is controlled by MIDI chip - VCC lines of MIDI chip - When vibrator signal is high, vibrator on - Vibrator signal path LCD module is enabled...

  • Page 54: Vibrator Trouble

    4. TROUBLE SHOOTING Vibrator Trouble (2) • Trouble Shooting Setup • Trouble Shooting Procedure - Connect PIF to the phone, and power on. - Check vibrator signal - Enter the engineering mode. - Check soldering of components - Go to menu “Baseband -> Alert -> Vibrator” - Check B-to-B connector - Check vibrator Check Contact...
  • Page 55 4. TROUBLE SHOOTING Vibrator Trouble (3) START Enter into Engineering Mode and select Vibrator VB401 is connected well ? Re-conne ct Vibr ator Vibrator is out of ord er. Re-solder t he R434, Signal path is O K? Change the Vibrator. D401,Q402.

  • Page 56: Keypad Backlight Trouble

    4. TROUBLE SHOOTING 4.1.6 Keypad Backlight Trouble (Number Key) : (1) • Block Diagram VBAT LD801 R807 SOFTKEY_LED IOTA LD802 R808 CN301 CN901 U101 FPCB LEDB LD803 R809 LD804 R810 LD805 R811 B-to-B B-to-B Connector Connector LD806 R812 LD807 R813 Main Board Slide Board LD808...
  • Page 57 4. TROUBLE SHOOTING Keypad Backlight Trouble (Number Key) : (2) Key backlight LED Check soldering or contacting this point ! • Trouble Shooting Setup - Connect PIF-UNION to the phone, and power on. - Enter engineering mode. - Go to menu “Baseband -> Backlight -> Keypad on” •...
  • Page 58 4. TROUBLE SHOOTING Keypad Backlight Trouble (Number Key) : (3) 1. All LEDs are not working START Enter into Engineering Mode and select Keypad On Re-solder CN301, CN901. CN301,CN901,FPBC is o k? Reco nnect FPCB The Volta ge of LE DB or ABB is out of orde r.

  • Page 59: Keypad Backlight Trouble

    4. TROUBLE SHOOTING 4.1.7 Keypad Backlight Trouble (Qwerty Key) : (1) • Block Diagram VBAT L601 Q602 Calypso EL charge pump U102 KEY2 U602 C601 C602 EL backlight key pad • Backlight Operation • Check Point - The keypad EL backlight is controlled with - KEY2 signal KEY2 signal.
  • Page 60 4. TROUBLE SHOOTING Keypad Backlight Trouble (Qwerty Key) : (2) Check soldering this point ! KEY2 : EL charge pump pin 5 L601 U602 Q602 C602 C601 OUT605 OUT608 Check contacting this point ! • Trouble Shooting Setup • Trouble Shooting Procedure - Connect PIF-UNION to the phone, and - Check the soldering of components.
  • Page 61 4. TROUBLE SHOOTING Keypad Backlight Trouble (Qwerty Key) : (3) 1. EL backlight is not working START Power on and Open the phone Contact at Reco nnect OUT605,OUT608 is o k? EL key p ad. ABB is out of order. The vo lt age of KEY2 Replace U602.
  • Page 62 4. TROUBLE SHOOTING 4.1.8 Folder ON/OFF Trouble (1) • Block Diagram V_IO U302 FOLDER R310 FOLDER Calypso C315 U102 C315 C316 A3212EEH U302 V_IO • Folder Operation • Folder Signal Status - There is a magnet at slide part to detect the - L : Close (Magnetized) open-or-close status.

  • Page 63: Folder On/Off Trouble

    4. TROUBLE SHOOTING Folder ON/OFF Trouble (2) START Re-solde r the The all p aths co nnect ed C315, C316, R310. to U302 are OK? Refer to The V_IO is 2.8V? Power On Tr ouble . The FOLDER signa l is low Replace t he U302.

  • Page 64: Sim Detect Trouble

    4. TROUBLE SHOOTING 4.1.9 SIM Detect Trouble (1) • Block Diagram V_SIM VRSIM R430 SIM_IO IOTA C409 U102 Connector SIM_RST J401 SIM_CLK C408 J401 • Connection between SIM and DBB - SIM_CLK, SIM_IO, SIM_RST • Check Point - Contact between SIM and socket - Soldering of SIM socket •...
  • Page 65 4. TROUBLE SHOOTING SIM Detect Trouble (2) START Insert the SIM Card Reso ld er the The solde ring of S IM connector J401. is O K? Reso ld er the The all p aths co nnect ed R430, C409, C408. to J401 are O K? SIM card is b roken .

  • Page 66: Camera Trouble

    4. TROUBLE SHOOTING 4.1.10 Camera Trouble (1) • Block Diagram C_CD0 ~ C_CD7 C_SCK,C_ SDA C_PCLK, C_RST Sensor C_HS, C_VS, C_MCLK Path D(0) ~ D(15) Main L_D(0) ~ L_D(15) CN301 Camera A(1) ~ A(2) L_WR Calypso A(1) FPCB CL761A U102 LCD_RESET L_A(1) Connector...
  • Page 67 4. TROUBLE SHOOTING Camera Trouble (2) • Camera Sensor Block Diagram C_PWR C_PWR C_PWR CN701 R723 FL701 SFEY0006701 R725 FL702 SFEY0006701 C_MCLK FILTER1_1 FILTER2_1 C_PCLK FILTER1_2 FILTER2_2 FILTER1_1 FILTER2_1 C_RST C_CD(0) FILTER1_3 FILTER2_3 FILTER1_2 FILTER2_2 C_SCK C_CD(1) FILTER1_4 FILTER2_4 FILTER1_3 FILTER2_3 C_SDA C_CD(2)
  • Page 68 4. TROUBLE SHOOTING Camera Trouble (3) C_CD(0:7) V_CAM V_CAM R730 L_D(0:15) VDDS L_RESET_N L_D(0) C730 C731 C732 L_DA0 VDDL L_D(1) L_DA1 L_D(2) VBAT 0.1u 4.7u L_DA2 VDDI1 L_D(3) L_DA3 VDDI2 V_CAM L_D(4) L_DA4 L_D(5) L_DA5 VDDC1 L_D(6) L_DA6 VDDC2 L_D(7) C733 C734 L_DA7...
  • Page 69 4. TROUBLE SHOOTING Camera Trouble (4) Camera Chip Camera Sensor LDO(2.85V) U701 Connector CN702 Q701 Camera Trouble (5) • Trouble Shooting Setup - Enter the engineering mode. - Go to menu “Baseband -> Camera ” • Trouble Shooting Procedure - Check the Power Supply(2.85). - Check the connection between connector and camera.(CN701) •...
  • Page 70 4. TROUBLE SHOOTING Camera Trouble (6) START Does the LCD itself has no Go to the LCD trouble trouble? Change Check the voltage of Check the voltage of the Camera module. Change the Q701 Does it work properly? Pin3 of Q701 is 2.85V Pin1 of Q701 is 0V Itís Camera moduleís problem.

  • Page 71: Earphone Trouble

    4. TROUBLE SHOOTING 4.1.11 Earphone Trouble (1) • Block Diagram V_IO R211 HSMICBIAS R212 R214 R213 IOTA C223 HOOK_DETECT R215 U102 C225 HSMICP C226 R219 R216 L201 (N.A) HEADSET_MIC C228 (N.A) R217 ADIN1 HEADSET_OUT C227 R220 R221 JACK_DETECT HSMICP • Earphone Detecting Operation - The ABB operates A/D conversion continuously and if the value of “ADIN1”...
  • Page 72 4. TROUBLE SHOOTING Earphone Trouble (2) Close to Earjack From U102(IOTA) R211 HSMICBIAS R212 C220 C221 4.7u C222 R213 C223 4.7u R214 5.6K To U102(IOTA) R215 HOOK_DETECT C224 R216 JACK_DETECT The direction of the audio R217 C225 Signal from ear-mic J201 L201 R218...
  • Page 73 4. TROUBLE SHOOTING Earphone Trouble (3) ADIN1 The Audio Signal ìJA CK_DETECTî to Ear-Mic The Audio Signal signal (C225, R217) (C233, R222) from Ear-Mic (C226, L201, R219) R212 R219 L201 J201 C226 U101 C225 R217 C233 R222 - 74 -...
  • Page 74 4. TROUBLE SHOOTING Earphone Trouble (4) START cf) PRBS : Pseudo Ra nd om Bit S eque nc e Insert the earphone into the headset. Go to pa ge75 Does the Audio pr ofile change 1. Earphone detection pr oble m to the earphone mode ? Reso ld er the Set the audio part of test equipment...
  • Page 75 4. TROUBLE SHOOTING Earphone Trouble (5) 1. Earphone Detection pr oble m Reso ld er the The so ld erin g of R216, R217 R216, R217. is O K? The Volt age at " ADIN1" is 0V? Reso ld er the J201. The so ld erin g of J201 is O K? The ABB is out o f or der.
  • Page 76 4. TROUBLE SHOOTING Earphone Trouble (6) 2. Sending P ath pr oble m Set audio part of the test equipment to the echo mode. Reso ld er The so ld erin g of C227, the C227, R220, R221. R218, R212 is O K? Reso ld er the The vo lt age at R220 R220, R221.

  • Page 77: Rx Part Trouble Shooting

    4. TROUBLE SHOOTING RF Part Troubleshooting 4.2 RX Part Trouble Shooting(1) TEST Setup : GSM850 190Ch & PCS 661Ch - 60dBm BCCH AGC Gain 24dB Mobil e S/W Ant S/W SAW Filt er VCTCXO - 78 -...
  • Page 78 4. TROUBLE SHOOTING RX Part Trouble Shooting RX Part Trouble Shooting(2) 1. Check Ant. SW and Mobile SW GSM_ON U501 PCS_ON TX_ON ➀ Check Dual And gate input signals. ➁ Check Ant. SW control signals (Outputs of And gate). GSM TX PCS TX ➂...
  • Page 79 4. TROUBLE SHOOTING RX Part Trouble Shooting(3) 1. Check Ant. SW and Mobile SW GSM/PCS Rx Path FL503 GSM Rx Path PCS Rx Path Check these circuit with High Frequency Probe. You can see RF signal at Spectrum Analyzer ! ➀...
  • Page 80 4. TROUBLE SHOOTING RX Part Trouble Shooting(4) 2. Check SAW Filter circuit L511 5.6nH FL502 EFCH881MTCA1 L505 L512 5.6nH L513 3.3nH FL501 EFCH1960TCA1 L506 L514 3.3nH ➀ Check SAW Filter Input power(A1, B1) ➁ Check SAW Filter Output power(A2, B2) •...
  • Page 81 4. TROUBLE SHOOTING RX Part Trouble Shooting( 5) 4. Check VCTCXO and Regulation ➀ VCTCXO • 26MHz Clock Output 26MHz frequency output - 82 -...
  • Page 82 4. TROUBLE SHOOTING RX Part Trouble Shooting(6) 4. Check VCTCXO and Regulation ➁ Regulation • 2.85V Regulator Out 2.85V Output - 83 -...
  • Page 83 4. TROUBLE SHOOTING RX Part Trouble Shooting(7) 5. Check control signals ➀ PDNB, S_EN, S_CLK, S_DATA PDNB U504 S_EN S_CLK S_DATA PDNB S_DATA S_CLK _S_EN (3pin) (5pin) (7pin) (9pin) - 84 -...
  • Page 84 4. TROUBLE SHOOTING RX Part Trouble Shooting(8) 6. Check RX I/Q signal Expended ! RXQP RXQN RXIN RXIP U102 - 97 -...

  • Page 85: Tx Part Trouble Shooting

    4. TROUBLE SHOOTING 4.3 TX Part Trouble Shooting(1) TEST Setup : GSM850 190Ch & PCS 661Ch - 60dBm BCCH AGC Gain 24dB Mobile S/W Ant S/W SAW Filter VCTCXO - 98 -...
  • Page 86 4. TROUBLE SHOOTING TX Part Trouble Shooting(2) VCTCXO Regulation 1. Check VCTCXO and Regulation ➀ VCTCXO - 26MHz Clock Output ➁ Regulation - 2.85V Regulator Out 2. Check Control Signals ➀ PDNB, _S_EN, S_CLK, S_DATA Same as RX Trouble Shooting Procedure No.4 and 5.
  • Page 87 4. TROUBLE SHOOTING TX Part Trouble Shooting(3) 3. Check Tx I/Q ➀ Tx I/Q U102 TXQP TXQN TXIN TXIP - 100 -...
  • Page 88 4. TROUBLE SHOOTING TX Part Trouble Shooting(4) 5. Check PAM Circuit ➀ PAM input and output U503 Check these points with High Frequency Probe. You can see RF signal at VBAT Spectrum Analyzer ! • Tx Carrier Frequency - GSM 190Ch. : 836.6MHz - PCS 661Ch.
  • Page 89 4. TROUBLE SHOOTING TX Part Trouble Shooting(5) 5. Check PAM Circuit ➁ PAM control signals PA_ON U503 PA_Band BAND - 102 -...
  • Page 90 4. TROUBLE SHOOTING TX Part Trouble Shooting(6) 6. Check Ant. SW circuit Check these points with High Frequency Probe. You can see RF signal at Spectrum Analyzer ! ➀ Control signal VC1, VC2 Same as RX Trouble Shooting Procedure No.1 ➁...

  • Page 91: 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 (LG9200) – Data kit – Battery – IBM compatible PC supporting RS-232 with Windows 98 or newer •...
  • Page 92 5. DOWNLOAD 2. In case of using the PIF • Preparation – Target Handset (LG9200) – PIF – RS-232 Cable and PIF-to-Phone interface Cable – TA/Power Supply or Battery – IBM compatible PC supporting RS-232 with Windows 98 or newer •...
  • Page 93 5. DOWNLOAD The Procedure of Downloading Software 1. Execute FLUID.EXE. And then a window will be shown as below. 2. Press “Add” button and select a software to download in browser. - 106 -...
  • Page 94 5. DOWNLOAD 3. And then the window will be shown as below. Check the “Erase entire flash device” item. 4. Press “Global Settings” menu. Choose a correct serial port and set the configuration as below. - 107 -...
  • Page 95 5. DOWNLOAD 5. Press “Erase/Program flash” menu. Click the “Erase/Program” item and you will see the window as below. 6. After you watched the “Bootloader : (reset target) ” message, press the Power key of handset (in case of Data kit) or turn the POWER on (PIF) and switch on the TI-REMOTE (PIF). The window will be shown as below.
  • Page 96 5. DOWNLOAD 7. If downloading is completed, you will see the window as below. And then turn the Power On after removing and inserting battery again. (in using of battery) - 109 -...

  • Page 97: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM - 110 -...

  • Page 98: Circuit Diagram

    LG9200 KBC(0:4) Designer 05/07/26 S. G. KIM 1/7(M) KBR(0:4) UFLS RPWON Checked 05/07/26 T. S. PARK ON_SW ON_SW DRAWING VBAT VBAT VBAT MAIN_BB NAME URXD S. S. BAE Approved 05/07/26 UTXD DRAWING Ver 1.1 LG Electronics Inc. - 111 -...
  • Page 99 Sign & Name Sheet/ Sheets MODEL LG9200 MICN Designer 05/07/26 S. G. KIM C241 2/7(M) 0.1u C242 C243 R226 Checked 05/07/26 T. S. PARK DRAWING MAIN_AUDIO NAME S. S. BAE Approved 05/07/26 DRAWING Ver 1.1 LG Electronics Inc. - 112 -...
  • Page 100 GND1 0.1u MIDI_CS A(8) Sheets MODEL LG9200 Designer 05/07/26 S. G. KIM 3/7(M) A(7) A(8) _CS4 MAIN_CS MIDI_CS Checked 05/07/26 T. S. PARK DRAWING MAIN_LCDCON NAME 05/07/26 S. S. BAE Approved DRAWING Ver 1.1 LG Electronics Inc. - 113 -...
  • Page 101 Sheet/ R434 LG9200 Sheets VIBRATOR MODEL 05/07/26 S.G.KIM 1.5K Designer (2012) R436 4/7(M) VBATS 100K 05/07/26 T. S. PARK C411 Checked 4.7u DRAWING MAIN_IO/SIM (1608) NAME S. S. BAE Approved 05/07/26 DRAWING Ver 1.1 LG Electronics Inc. - 114 -...
  • Page 102 C550 C546 T. S. PARK C547 X501 26MHz 1000p Checked 05/07/26 RF_EN DRAWING 0.01u 2.2u VCONT RF_RITA C548 C549 (1608) NAME 2.2u S. S. BAE Approved (1608) 05/07/26 C551 C552 1000p DRAWING Ver 1.1 LG Electronics Inc. - 115 -...
  • Page 103 S. G. KIM 05/07/26 6/7(M) 100K Checked T. S. PARK 05/07/26 SHIFT_KEY RPWON DRAWING KB611 Q601 MAIN_KEY SI1304DL-E3 NAME R614 R615 R616 S. S. BAE Approved 05/07/26 KBC(4) AVL5M02-200 R617 R618 VA610 SHIFT_KEY DRAWING Ver 1.1 LG Electronics Inc. - 116 -...
  • Page 104 CAM_CLK_1 C742 C741 C740 0.01u 2.2u 1608 V_CAM D(0:15) Section Date Sign & Name Sheet/ LG9200 Sheets MODEL 05/07/26 S.G.KIM Designer 7/7(M) Checked T.S.PARK 05/07/26 DRAWING CAMERA NAME S.S.BAE Approved 05/07/26 DRAWING Ver 1.1 LG Electronics Inc. - 117 -...
  • Page 105 PT801 C809 620K 470K Section Date Sign & Name Sheet/ MODEL LG9200 Sheets Designer S. G. KIM 05/07/26 Checked 05/07/26 T. S. PARK DRAWING Upper NAME S. S. BAE Approved 05/07/26 DRAWING Ver 1.1 LG Electronics Inc. - 118 -...
  • Page 106 C922 EAR_N AVL5M02-200 AVL5M02-200 SOFTKEY_LED C923 C924 0.1u 0.1u Section Date Sign & Name Sheet/ Sheets MODEL LG9200 Designer 05/07/26 S.G.KIM. 2/2(S) T.S.PARK Checked 05/07/26 DRAWING Upper NAME Approved S.S.BAE 05/07/26 DRAWING Ver 1.1 LG Electronics Inc. - 119 -...

  • Page 107: Pcb Layout

    8. PCB LAYOUT - 120 -...
  • Page 108 8. PCB LAYOUT - 121 -...
  • Page 109 8. PCB LAYOUT - 122 -...
  • Page 110 8. PCB LAYOUT - 123 -...
  • Page 111 - 124 -...

  • Page 112: Calibration

    9. Calibration 9. Calibration Standalone Test & Calibration A. What is Standalone Test? 1. 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 - 125 -...

  • Page 113: Standalone Test Equipment Setup

    9. Calibration B. Standalone Test Equipment Setup GSM Test Set Spectrum Analyzer Oscilloscope High Frequency Probe LG9200 PBA Probe Power Supply - 126 -...

  • Page 114: What Is Calibration

    9. Calibration C. What is Calibration?(1) 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 115: Calibration Program

    9. Calibration D. Calibration program 1. Calibration Program(HOT_KIMCHI) • Under windows 98 or 2k • Not support win xpp • Support WILLTEK, R&S(CMU200) 2. Required Equipments • Test PC with PCMCIA slot • GPIB card and cable • PIF JIG •...

  • Page 116: Calibration Equipment Setup

    9. Calibration E. Calibration Equipment Setup - 129 -...

  • Page 117: Calibration Lg9200 With Hot_Kimchi

    9. Calibration F. Calibration LG9200 with HOT_KIMCHI 1. Open the Hot_Kimchi folder 2. Execute Program (HOT_KIMCHI) Click Setup File(Hot_KimchiD) - 130 -...
  • Page 118 9. Calibration Calibration LG9200 with HOT_KIMCHI 1. Click the “APPLY!” Button 2. Click the “CALIBRATION START” Second!! First!! - 131 -...
  • Page 119 9. Calibration Calibration LG9200 with HOT_KIMCHI 1. Check “Stand BY” status. 2. Click the “CALIBRATION START” BUTTON. CLICK CHECK - 132 -...
  • Page 120 9. Calibration Calibration LG9200 with HOT_KIMCHI 1. Calibration is running. - 133 -...
  • Page 121 9. Calibration Calibration LG9200 with HOT_KIMCHI 1. Calibration is complete. - 134 -...
  • Page 122 10. EXPLODED VIEW & REPLACEMENT PART LIST 10.1 EXPLODED VIEW - 135 -...
  • Page 123 - 136 -...

  • Page 124: Exploded View & Replacement Part List

    10. EXPLODED VIEW & REPLACEMENT PART LIST 10.2 Replacement Parts Note: This Chapter is used for reference, Part order <Mechanic component> is ordered by SBOM standard on GCSC Location Level Description Part Number Specification Color Remark GSM(SLIDE) TGLL0001901 F9200 CGRWA White AAAY00 ADDITION...
  • Page 125 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark MPBZ01 MPBZ0106301 F9200 PAD UPPER 3X10X0.5t Black MTAD00 TAPE,WINDOW MTAD0036401 F9200 CGRWA Silver MTAZ00 TAPE MTAZ0085801 TAPE BUTTON MENU3.8X11.5X0.4 Black ARDY00 RAIL ASSY,SLIDE ARDY0000801 F9200 CGRWA Blue AWAB00 WINDOW ASSY,LCD...
  • Page 126 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark MWAE00 WINDOW,CAMERA MWAE0008801 F9200 CGRWA Transparent GMZZ00 SCREW MACHINE GMZZ0015101 1.4 mm,3.0 mm,MSWR3(FN) ,N ,+ ,- , Silver MBJA00 BUTTON,DIAL MBJA0017401 F9200 QWERTY KEY Blue MCCH00 CAP,SCREW MCCH0052902...

  • Page 127: 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 Specification Color Remark SACY00 PCB ASSY,FLEXIBLE SACY0038301 SACE00 PCB ASSY,FLEXIBLE,SMT SACE0034101...
  • Page 128 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark R819 RES,CHIP ERHY0000209 27 ohm,1/16W,J,1005,R/TP R820 RES,CHIP ERHY0000163 220K ohm,1/16W,F,1005,R/TP R821 RES,CHIP ERHY0000169 470000 ohm,1/16W ,F ,1005 ,R/TP R822 RES,CHIP ERHY0006602 620 Kohm,1/16W ,J ,1005 ,R/TP R860 RES,CHIP ERHY0000280...
  • Page 129 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark R814 RES,CHIP ERHY0000229 300 ohm,1/16W,J,1005,R/TP R815 RES,CHIP ERHY0000220 100 ohm,1/16W,J,1005,R/TP R816 RES,CHIP ERHY0000172 68 ohm,1/16W ,F ,1005 ,R/TP R823 RES,CHIP ERHY0000229 300 ohm,1/16W,J,1005,R/TP R824 RES,CHIP ERHY0000229 300 ohm,1/16W,J,1005,R/TP R825...
  • Page 130 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark C118 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP C119 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP C120 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP C121 CAP,CERAMIC,CHIP ECCH0006201...
  • Page 131 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark C227 CAP,CERAMIC,CHIP ECCH0003401 10 uF,6.3V ,Z ,Y5V ,HD ,2012 ,R/TP C229 CAP,CERAMIC,CHIP ECCH0000117 27 pF,50V,J,NP0,TC,1005,R/TP C230 CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP C231 CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP C232 CAP,CERAMIC,CHIP ECCH0000117...
  • Page 132 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark C510 CAP,CERAMIC,CHIP ECCH0000196 0.75 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C512 CAP,CERAMIC,CHIP ECCH0000174 2 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C513 CAP,CERAMIC,CHIP ECCH0000101 .5 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C514 CAP,CERAMIC,CHIP ECCH0000101...
  • Page 133 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark C552 CAP,CERAMIC,CHIP ECCH0004903 1 uF,6.3V ,Z ,Y5V ,TC ,1005 ,R/TP C553 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP C554 CAP,CERAMIC,CHIP ECCH0000117 27 pF,50V,J,NP0,TC,1005,R/TP C555 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C556 CAP,CERAMIC,CHIP ECCH0000122...
  • Page 134 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark L501 INDUCTOR,CHIP ELCH0001426 8.2 nH,J ,1005 ,R/TP ,PBFREE L502 INDUCTOR,CHIP ELCH0001427 2.2 nH,S ,1005 ,R/TP ,Pb Free L503 INDUCTOR,CHIP ELCH0004711 22 nH,J ,1005 ,R/TP , L504 INDUCTOR,CHIP ELCH0004713...
  • Page 135 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark R203 RES,CHIP ERHY0000187 6.8 Kohm,1/16W ,F ,1005 ,R/TP R204 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R205 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R206 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R207 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R208...
  • Page 136 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark R430 RES,CHIP ERHY0000261 10K ohm,1/16W,J,1005,R/TP R431 RES,CHIP ERHY0000280 100K ohm,1/16W,J,1005,R/TP R432 RES,CHIP ERHY0000205 15 ohm,1/16W,J,1005,R/TP R433 RES,CHIP ERHY0000214 51 ohm,1/16W,J,1005,R/TP R434 RES,CHIP ERHY0000244 1.5K ohm,1/16W,J,1005,R/TP R435 RES,CHIP ERHY0001102...
  • Page 137 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark R723 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R725 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R730 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R732 RES,CHIP ERHY0000201 0 ohm,1/16W,J,1005,R/TP R733 RES,CHIP ERHY0000261 10K ohm,1/16W,J,1005,R/TP R735 RES,CHIP ERHY0000201...
  • Page 138 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA701 RES,VARIABLE,ETC ERVZ0000101 Free VB401 CONN,RECEPTACLE ENEY0003801 2 PIN, , , X101 X-TAL EXXY0015601 .032768 MHz,20 PPM,7 pF,65000 ohm,SMD ,6.9*1.4*1.3 X501 VCTCXO EXSK0005601...
  • Page 139 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark R301 RES,CHIP ERHY0000223 150 ohm,1/16W,J,1005,R/TP R302 RES,CHIP ERHY0000230 330 ohm,1/16W,J,1005,R/TP R303 RES,CHIP ERHY0000230 330 ohm,1/16W,J,1005,R/TP R304 RES,CHIP ERHY0000222 120 ohm,1/16W,J,1005,R/TP R305 RES,CHIP ERHY0000237 680 ohm,1/16W,J,1005,R/TP R306 RES,CHIP ERHY0000261...
  • Page 140 10. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Specification Color Remark ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA606 RES,VARIABLE,ETC ERVZ0000101 Free ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA607 RES,VARIABLE,ETC ERVZ0000101 Free ohm, PIN, ,SMD ,R/TP ,1005 SIZE CHIP VARISTOR, Pb VA608...

  • Page 141: Accessory

    10. EXPLODED VIEW & REPLACEMENT PART LIST 10.3 Accessory Note: This Chapter is used for reference, Part order is ordered by SBOM standard on GCSC Location Level Description Part Number Specification Color Remark 3.7 V,1000mAh,1CELL,PRISMATIC,F9100 BATT,Terminal : SBPL00 BATTERY PACK,LI-ION SBPL0080101 Sde (Cingular White LDI),Pb-Free SSAD00...
  • Page 142 Note...

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