Page 1 Internal Use Only Service Manual GM360i Date: June, 2010 / Issue 1.0...
Page 2: Table Of Contents
4.1 Trouble shooting test setup .............62 4.2 Power on Trouble ................6 4. Charging trouble ................66 4.4 LCD display trouble ..............68 - - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 5 When returning system boards or parts such as EEPROM to the factory, use the protective package as described. - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 7/147...
Page 6: Abbreviations
Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode LG Electronics - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 8/147 Only for training and service purposes...
Page 7 DCXO Digitally Controled Crystal Oscillator Wireless Application Protocol 8PSK 8 Phase Shift Keying - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LG Electronics LGE Property 9/147...
Page 8: Performance
Buzzer Voice Recoding C-Mic Receiver Travel Adapter Options Bluetooth hands-free kit, Data Kit LG Electronics LGE Property 10/147 - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 9: Technical Specification
±4dB 18 dBm ±3dB 2 dBm ±5dB 16 dBm ±3dB 0 dBm ±5dB - 10 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 11/147 Only for training and service purposes...
Page 10 (due to switching transient) DCS1800/PCS1900 Offset from Carrier (kHz) Max. (dBm) 1,200 1,800 LG Electronics LGE Property - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only 12/147 Only for training and service purposes...
Page 11 Distortion 33.3 33.7 31.7 25.5 Side tone Distortion Three stage distortion < 10% - 12 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property Only for training and service purposes 13/147...
Page 12 Switching-mode charger Travel Charger Input: 150 240 V, 50/60Hz Out put: 5.1, 0.7A - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 14/147...
Page 13 (due to modulation) Offset from carrier(kHz) Max. dBc +0.5 600~<1,200 1,200~<1,800 1,800~<3,000 3,000~<6,000 6,000 - 14 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property Only for training and service purposes 15/147...
Page 14 (due to switching transient) DCS1800, PCS1900 Offset from carrier(kHz) Max. dBm 1,200 1,800 - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 16/147...
Page 15: Technical Brief
FM Audio Figure 1 GM360 Functional block diagram LG Electronics LGE Property 17/147 - 16 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LG Electronics LGE Property 17/147...
Page 16: Baseband Processor (Bbp) Introduction
3.2 Baseband Processor (BBP) Introduction Figure 2 Top level block diagram of the S-GOLD3 (PMB8877) - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes LG Electronics LGE Property...
Page 17: General Description
Multi-layer AHB for connecting the ARM and the other master capable building blocks with the internal and external memories and with the peripheral buses. - 18 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 19/147...
Page 18 - An ITU-R BT.656 compatible Camera interface. - Programmable clock output for a camera - An multimedia/Secure Digital Card Interface (MMCI/SD:SDIO capable) - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property...
Page 19 - USIF2 : Not used Rx, Tx and CTS, RTS use BT Interface - USIF3 : Other function - 20 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 21/147 Only for training and service purposes...
Page 20 RF block temperature measure PCB Version check optional VSUPPLY Battery supply voltage measure - 21 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 22/147 Only for training and service purposes...
Page 21 WLAN_D(3) Optional #MMCI2: Intrachip MMCI2_CMD WLAN_CMD Optional MMCI2_DAT[0] WLAN_D(0) Optional MMCI2_CLK WLAN_CLK Optional - 22 - LGE Internal Use Only LG Electronics Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Property 23/147 Only for training and service purposes...
Page 22 PM_INT PM_INT PM interrupt #I2C2 I2C2_SCL I2C2_SCL I2C2 clock I2C2_SDA I2C2_SDA I2C2 data - 2 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 24/147...
Page 23 EPN1 EAR_N EPP1 EAR_P EPPA1 BB_SND_L EPREF EPPA2 BB_SND_R MICN1 MAIN_MIC_N MICP1 MAIN_MIC_P - 24 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 25/147 Only for training and service purposes...
Page 24 Analog Interface VREFP VREFN IREF #JTAG TRST_n TRSTN RTCK RTCK #Debug TRIG_IN TRIG_IN high - 25 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 26/147...
Page 25 DATA(12) MEM_AD[13] DATA(13) MEM_AD[14] DATA(14) MEM_AD[15] DATA(15) MEM_CS0_n _NAND_CS MEM_CS1_n _RAM_CS MEM_CS2_n MEM_CS3_n - 26 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 27/147 Only for training and service purposes...
Page 26 MEM_A[12] ADD(12) MEM_A[13] ADD(13) MEM_A[14] ADD(14) MEM_A[15] ADD(15) MEM_RAS_n _RAS MEM_CAS_n _CAS MEM_CKE - 27 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 28/147...
Page 27 CLKOUT0 F_MODE F26M 26MHZ_MCLK F32K F32K OSC32K OSC32K RESET_n _RESET RSTOUT_n RTC_OUT RTC_OUT - 28 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 29/147 Only for training and service purposes...
Page 28 #Extra I/Os & Interrupt Inputs DSPIN0 CLK32K DSPOUT1 WDOG DSPIN1 BT_WAKEUP Bluetooth wakeup - 29 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 30/147...
Page 29: Power Management Ic
• VQFN 48 package with heat sink and non-protruding leads • Compatible with the Infineon E-GOLD+ V2 and V3 LG Electronics LGE Property 31/147 - 0 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30 – Overtemperature Shut-Down – Overtemperature Warning – Support of S-GOLD standby power-down concept – Support of S-GOLD Power-Down Pad Tristate Function - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 32/147...
Page 31 Real Time Clock VAFC VAFC 2.65V Not used VVIB 2V8_VLCD 2.8V 140mA Cam VCM power - 2 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 33/147 Only for training and service purposes...
Page 32 EN_SET 22pF C218 C209 C239 Tol. 1% (650mA) (150mA) Figure 4 charging part - - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 34/147...
Page 33 Stand by : 3 min b. Dedicated : 1 min 11. Switch-off voltage : 3.32 V - 4 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 35/147 Only for training and service purposes...
Page 34: Power On/Off
As monitoring the RPWRON and Key matrix KP_OUT(1) & KP_IN (6), GM360 system recognize whether remote GM60i power on or End-key pushed LG Electronics LGE Property 36/147 - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 35 END_KEY VA201 VA200 Figure 7 Remote power on and End-key power on circuit LG Electronics LGE Property 37/147 - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36: Sim & Usd Interface
The MicroSD Memory Module has eight exposed contacts on one side. The S-Gold3 is connected to the module using a dedicated eight-pin connector LG Electronics LGE Property 38/147 - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 37 Power supply Clock Ground Power ground DAT0 Data bit [0] DAT1 Data bit [1] - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 39/147 Only for training and service purposes...
Page 38: Memory
0.1u Star routing Figure 9 Flash memory & DDR RAM MCP circuit diagram LG Electronics LGE Property 40/147 - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 39: Lcd Display
- Backlight : 5 piece of white LED LCD FPCB Interface Spec: Table 7. LCD FPCB Interface Spec. - 40 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 41/147 Only for training and service purposes...
Page 40: Keypad Switching & Scanning
R415 KP_OUT[1] CN404 VA414 VA416 VA415 Figure 10 Key pad part key matrix LG Electronics LGE Property 42/147 - 41 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 41: Keypad Back-Light Illumination
SM-Power Flash LED port which has constant current control function. The whole configuration of the SM-POWER Flash LED drivers is shown in below Figure11. LG Electronics LGE Property 43/147 - 42 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42 3. TECHNICAL BRIEF VBAT LD401 LD403 LD400 LD402 LD460 LD461 KEY_BL VPLL_1V35 VIO_2V62 VBAT Figure 11 Keypad Back-light LEDs - 4 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 43: Lcd Back-Light Illumination
The protocol for using this interface is described in the following subsection. Figure 13 I2C Serial data port control method LG Electronics LGE Property 45/147 - 44 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44: Audio
GM360 Audio signal flow diagram as following diagram. GM60i Figure 14 Audio signal flow diagram LG Electronics LGE Property 46/147 - 45 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 45: Audio Amplifier & Microphone
FB801 VOUT C816 0.1u R802 1V8A_LDO_ON C801 C802 Figure 15 Audio amplifier PMIC LG Electronics LGE Property 47/147 - 46 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 C307 C303 C302 VA300 VA302 47pF 27pF 27pF VMIC_N Figure 16 Microphone circuit - 47 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 48/147 Only for training and service purposes...
Page 47: Charging Circuit
IFULL EN_SET C209 C239 C218 Tol. 1% (650mA) (150mA) Figure 17 Charging circuit LG Electronics LGE Property 49/147 - 48 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48: Fm Radio & Bluetooth & Wlan
[Figure3.14] also shows the Bluetooth system architecture in the GM360ii. - 49 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes LG Electronics...
Page 49 C503 C515 C506 C505 C507 0.1u 0.1u 4.7u 2.2u Figure 18. Bluetooth / WLAN/ FM Radio Circuit Diagram - 50 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 PCM interfaces. [Figure3.14.3] shows the FM Radio system architecture in the GM360ii. Figure 19. Bluetooth / WLAN/ FM Radio Functional Block Diagram LG Electronics LGE Property 44/137 - 51 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 51: 5Pin U-Usb Interface Connector
MUIC VBUS 5pin Micro USB connector UART Figure 20. u-USB Connector Block Diagram LG Electronics LGE Property 54/147 - 52 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 The TS5USBA33402 will also detect USB chargers including dedicated chargers (D+/D- shorted) and high power host/hub chargers. - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes LG Electronics...
Page 53 Figure 22 GM360 RF part Block Diagram LG Electronics LGE Property 56/147 LG Electronics LGE Property 56/147 - 54 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 56/147 Only for training and service purposes...
Page 54: General Description
Figure 23 RF transceiver PMB6272 SMARTi-PM functional block diagram LG Electronics LGE Property 57/147 - 55 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 55 HOT2 HOT1 GND1 26MHz C531 C536 0.22uF 0.1u 26MHZ_BT RF_CLK RF_DA Figure 24 RF transceiver PMB6272 SMARTi-PM schematic - 56 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56: Receiver Part
DC-offset at baseband-output. A programmable gain correction can be applied to correct for front end- and receiver gain tolerances. LG Electronics LGE Property 59/147 - 57 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 57: Transmitter Part
In 8PSK mode, the ramping functionality is assured by an on-chip ramping generator, whereas output power is controlled by the PGA’s as described above. LG Electronics LGE Property 60/147 - 58 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58: Rf Synthesizer
L502 C521 C530 C537 1.8p Figure 27 FEM schematic Figure 27 FEM schematic - 59 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 61/147 Only for training and service purposes...
Page 59: Power Amplifier Module
Connect 0.01uF bypass capacitor as close to pin as practical 8, 11, 14 Ground LG Electronics LGE Property 63/147 - 60 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60: Pam Schematic
C524 C548 C639 C546 C520 C547 100p 100p 100p Figure 28 PAM schematic LG Electronics LGE Property 64/147 - 61 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 61: Trouble Shooting
-Connect mobile switch cable between Communication test set and DUT when you need to make a phone call. -Follow trouble shooting procedure LG Electronics LGE Property 65/147 - 62 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62: Power On Trouble
VIO_2V62 RTC_2V11 R218 100Kohms U200 SPOWER_INT PM_INT _RESET PMRSTN C235 0.1u R203 R202 LG Electronics LGE Property 66/147 - 6 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 63 Real Time Clock VAFC VAFC 2.65V Not used VVIB CAM_VCM_2V8 2.8V 140mA Camera VCM power - 64 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LG Electronics LGE Property 67/147...
Page 64 1pin of X501 Change Battery Connector 1. Don’t use Heat Gun 2. Replace main PCB LG Electronics LGE Property 68/147 - 65 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 65: Charging Trouble
VSS1 RPWRON_EN VSS2 _CHG_EN IFULL EN_SET C209 C239 C218 Tol. 1% (650mA) (150mA) LG Electronics LGE Property 69/147 - 66 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66 Voltage goes up to 3.4V Charge is operating properly U401 TP2: Output pin - 67 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 70/147...
Page 67: Lcd Display Trouble
Check signal flow via EMI filter(FL404,405,403) Check the connection LCD FPCB Connector Charge Pump LG Electronics LGE Property 71/147 - 68 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68: Only For Training And Service Purposes
Signal is normal on Check solder and repair DIF Signal Damaged filter FL403, FL404, FL405 Assemble LG Electronics LGE Property 72/147 - 69 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 69: Camera Trouble
INOUT_A4 INOUT_B4 C404 7.5pF 0.1uF U402 VOUT1 CAM_LDO_EN1 VOUT2 CAM_LDO_EN2 C407 C405 C406 LG Electronics LGE Property 73/147 - 70 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 Replace New Camera Replace module Main PCB Working properly? Replace Camera module Assemble - 71 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics Only for training and service purposes LGE Property 74/147...
Page 71: Receiver & Speaker Trouble
1V8_AUDSUB SD_1V8 1V8_AUDLDO C817 I2C2_SCL 2.2u I2C2_SDA 2.2u C818 FB801 C816 0.1u R802 LG Electronics LGE Property 75/147 - 72 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72 4. TROUBLE SHOOTING Audio Subsystem C809 C808 C814, C815 Speaker contact - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property Only for training and service purposes 76/147...
Page 73 Replace Main Board Good(C814, C815) ? Output Signal is Replace Audio High(C808,C809) AMP(U802) Assemble LG Electronics LGE Property - 74 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. 77/147 Only for training and service purposes...
Page 74: Microphone Trouble
C307 C303 C302 VA300 VA302 47pF 27pF 27pF VMIC_N FB304 FB300 L302 MIC300 LG Electronics LGE Property 78/147 - 75 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 75 MIC Siganl OK? Replace MIC (FB300, FB304) MIC work Replace PCB properly? Assemble LG Electronics LGE Property 79/147 - 76 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Vibrator Trouble
3V3_VIB U303 VIB_EN VIB_P VIB_PWM VIB_N VBAT 3V3_VIB TYPE U301 C350 VOUT VIB_EN LG Electronics LGE Property 80/147 - 77 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 77 C330 Check U303 Check PWM replace it Signal (TP3) is Replace Vibrator Assemble - 78 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 81/147 Only for training and service purposes...
Page 78: Keypad Back Light Trouble
PMRSTN RESET_N FB202 RESET2_N U202 VCXO_EN SLEEP1_N BT_VCXO_EN SLEEP2_N VAUDIOA VDDAUDIOA VDDAUDIOB VAUDIOB LG Electronics LGE Property 83/147 - 79 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 79 Check TP1 is R410,R414,R406,R413,R460,R461 & 2.62V? LED400,401,402,403,460,461 Check Replace U202 PMIC(U202) Replace main board Assemble LG Electronics LGE Property 84/147 - 80 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80: Sim & Usd Trouble
Pin C1 / 2V9_SIM 2V9_SIM socket Pin C7 / SIM_IO Pin C3 / SIM_CLK - 81 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 85/147 Only for training and service purposes...
Page 81 6 pins are Resolder pin soldered well? Check Proper SIM Replace Main Board Card Assemble LG Electronics LGE Property 86/147 - 82 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 TP 1is low Signal) Replace Main Board Check proper uSD? Assemble LG Electronics LGE Property 87/147 - 8 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 83: Touch Trouble
0.1u U401 I2C_SDA CN401 VDD_REF TP408 TOUCH_INT I2C_SCL PENIRQ- VA411 VA410 VA406 VA409 LG Electronics LGE Property 88/147 - 84 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 Resolder U401 check CN401 Resolder or Replace CN401 Solder CN401 check Replacd Main Board LG Electronics LGE Property 89/147 - 85 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 85: Trouble Shooting Of Receiver Part
Mobile SW & FEM Check point RX I/Q Signal Re-Download S/W & CAL LG Electronics LGE Property 90/147 - 86 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 HOT2 Figure 3. DCXO Cicuit HOT1 GND1 26MHz Waveform Figure 4. DCXO Waveform LG Electronics LGE Property 91/147 - 87 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 87 26MHz 26MHZ_BT RF_CLK RF_DA Figure 7. PLL Control Waveform Figure 6. Transceiver Circuit - 88 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 92/147 Only for training and service purposes...
Page 88 Figure 9. Mobile SW & FEM EGSM/GSM850 DCS/PCS Table 2. FEM RX Control Logic - 89 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 93/147 Only for training and service purposes...
Page 89 Check Antenna. DCS/PCS RX Figure 10 Mobile SW (R403) Figure 11 FEM Control Signals LG Electronics LGE Property 94/147 - 90 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 TP3(Q TP2(IX) TP1(I) U501 Figure 13. RX I/Q Figure 14. RX I/Q Waveform - 91 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 95/147 Only for training and service purposes...
Page 91: Trouble Shooting Of Transmitter Part
Figure 1. Main PCB PAM Control Check FEM & Mobile Re-Download S/W & RF CAL - 92 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 96/147 Only for training and service purposes...
Page 92 4.13.2 Checking PLL Control Signal See RX Part “2. Checking PLL Control Signal” LG Electronics LGE Property 97/147 - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 93 TP3( TP2(IX TP1(I) U501 Figure 18. TX I/Q Figure 19. TX I/Q Waveform - 94 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 98/147 Only for training and service purposes...
Page 94 Table 3. Transceiver Output Operation MODE Transceiver Output GMSK Fixed 8PSK Ramp Burst Control - 95 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 99/147 Only for training and service purposes...
Page 95 EGSM 30CH EGSM 30CH Figure 23. Transceiver Output (8PSK) Figure 22. Transceiver Output (GMSK) - 96 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 100/147 Only for training and service purposes...
Page 96 PA_LEVEL TXON_PA GMSK Ramp Burst Control HIGH 8PSK HIGH Control Amp bias HIGH - 97 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 101/147 Only for training and service purposes...
Page 97 Figure 26. GSMK Control Signal TP2(TXON_PA) TP1(PA_LEVEL) TP1(PA_LEVEL) TP2(TXON_PA) TP3(PA MODE) TP3(PA MODE) TP1(PA_LEVEL) TP2(TXON_PA) TP3(PA MODE) - 98 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. LG Electronics LGE Property 102/147 Only for training and service purposes...
Page 98 Figure 9. Mobile SW & FEM EGSM/GSM850 DCS/PCS Table 2. FEM TX Control Logic - 99 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property 103/147 Only for training and service purposes...
Page 99 EGSM TX TP3(VC2) TP4(VC1) Figure 30 Mobile SW (R403) Figure 31 FEM Control Signals LG Electronics LGE Property - 100 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. 104/147 Only for training and service purposes...
Page 100: Download & S/W Upgrade
5. DOWNLOAD & S/W UPGRADE 5. DOWNLOAD & S/W UPGRADE GM60i - 101 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 109 5. DOWNLOAD & S/W UPGRADE GM60i ‘GM60i’ GM60i GM60i GM60i GM60i ‘GM60i’ GM60i - 110 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 113: Block Diagram
PMB6821 WM9093 RCV/SPK U802 FM Audio Ear-Mic Figure 1 GM360 Functional block diagram LG Electronics LGE Property 17/147 LGE Internal Use Only - 114 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 114: Circuit Diagram
I2C2 Differential signal(shield) I2C_SCL I2C_SDA I2C2_SCL I2C2_SDA PMIC CAMERA TDO(DBB Out) TOUCH AUDIO AMP _RESET MUIC CAMERA FLASH Copyright © 2010 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...
Page 115 AUDIO_L R2_2K 2.2K AUDIO_R C209 C239 C218 (EUSY0372001) Tol. 1% USW_INT _INT I2C_SDA CLDO I2C_SCL (650mA) (150mA) TP203 LGE Internal Use Only - 116 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116 MMC_CLK I2C_SDA MMC_CMD I2C_SCL MMC_DET VIB_EN MMC_COVER_DET TXON_PA VIB_PWM VIB_P VIB_N VBAT 3V3_VIB TYPE U301 C350 VOUT VIB_EN Copyright © 2010 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...
Page 117 KP_OUT[1] LGIT Pin3 : MAKER_ID CN404 Pin11 : IF_MODE(IF1) Pin18 : OPEN(OTP) VA414 VA416 VA415 Pin19 : IF_MODE(IF0) LGE Internal Use Only - 118 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 C519 C518 Shield TG-5010LH-87N X500 VBT_2V65 FM_RADIO_L 2.2u C503 C515 C506 C505 C507 0.1u 0.1u EUSY0355701 4.7u 2.2u Copyright © 2010 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only Only for training and service purposes...
Page 119 Sub FPCB Conn. VMME_2V9 VBAT CN601 MMC_DATA[0] MMC_DATA[1] MMC_DATA[2] VIB_P MMC_DATA[3] VIB_N MMC_CLK I2C_SDA MMC_CMD I2C_SCL CARD_DET COVER_DET TXON_PA LGE Internal Use Only - 120 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 120 7. CIRCUIT DIAGRAM SW901 KP_IN[3] KP_OUT[0] KP_IN[6] KP_IN[3] KP_OUT[0] CN901 KP_IN[6] Copyright © 2010 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only Only for training and service purposes...
Page 122: Bga Pin Map
8. BGA Pin Map 8. BGA Pin Map 8. BGA Pin Map U100(PMB8877, EUSY0322801) Not Use LG Electronics LGE Property 105/147 - 12 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 123 8. BGA Pin Map U101(K522H1HACB-B060, EUSY0388101) : Not Use LG Electronics LGE Property 106/147 - 124 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124 8. BGA Pin Map U202(PMB6821, EUSY0323901) Not Use LG Electronics - 125 - LGE Property Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only 107/147 Only for training and service purposes...
Page 125 8. BGA Pin Map U203(TS5USBA33402, EUSY0372001) LG Electronics LGE Property 108/147 - 126 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126 8. BGA Pin Map U802(WM9093, EUSY0403901) ** USE ALL PINS LG Electronics LGE Property 109/147 - 127 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 127 8. BGA Pin Map GM360i Operational Description Draft U530(LBEH19UNBC, SMZY0024901) LG Electronics LGE Property 104/137 - 128 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128 8. BGA Pin Map U501(PMB6821, EUSY0323901) Not Use LG Electronics LGE Property - 129 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only 111/147 Only for training and service purposes...
Page 129 Connect 0.01uF bypass capacitor as close to pin as practical 8, 11, 14 Ground U502(TQM7M5005H, SMPY0021101) LG Electronics LGE Property 112/147 - 10 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130: Pcb Layout
9. PCB LAYOUT CN401 : Touch Conn. - no Touch sensing GM360i_MAIN_SPFY0223201-1.0_TOP Copyright © 2010 LG Electronics. Inc. All right reserved. - 131 - LGE Internal Use Only Only for training and service purposes...
Page 131 - RF Sensitivity & TX Power MIC300 : Microphone - no far-end voice - no voice recording GM360i_MAIN_SPFY0223201-1.0_BOT LGE Internal Use Only - 132 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134: Rf Calibration
4.00 V 0.000 A 10.2 Calibration Step 2.1. Turn on the Phone. 2.2. Execute “HK_34.exe” LG Electronics LGE Property 123/147 - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 135 2.3. Click “SETTING” Menu 2.4. Setup “Ezlooks” menu such as the following figure - 16 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LG Electronics LGE Property 124/147...
Page 136 1. By-Pass: not control by GPIB CELL: Call Test Equipment 2. Normal: control by GPIB - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes LG Electronics LGE Property...
Page 137 2.7. Select “MODEL”. 2.8. Click “START” for RF calibration GM60i GM360 2.9. RF Calibration finishes. - 18 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LG Electronics LGE Property 126/147...
Page 138: Normal Mode
RX Channel compensation: EGSM->GSM850->DCS->PCS 4. Phone Operation Mode < Normal Mode > < Ptest Mode> - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes LG Electronics LGE Property...
Page 139: Stand Alone Test
Set COM Port. Check PC Baud rate. Confirm EEPROM & Delta file prefix name. LG Electronics LGE Property 128/147 - 140 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140 11. STAND ALONE TEST Click “Update Info” for communicating Phone and Test-Program. Not Connected Connected - 141 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes LG Electronics LGE Property...
Page 141 Select “Non signaling” in the Quick Bar menu. Then Standalone Test setup is finished. - 142 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LG Electronics LGE Property...
Page 142: Test
11. STAND ALONE TEST 11.2 x Test Click “Non signaling mode” bar and then confirm “OK” text in the command line. - 14 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property...
Page 143 Select “Tx” in the RF mode menu and “PCL” in the PA Level menu. Finally, Click “Write All” bar and try the efficiency test of Phone. - 144 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LG Electronics LGE Property...
Page 144: Rx Test
Put the number of RX Channel in the ARFCN. Select “Rx” in the RF mode menu. Finally, Click “Write All” bar and try the efficiency test of Phone. - 145 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LG Electronics LGE Property...
Page 145 Change the Phone to “normal mode” and then Click the “Reset” bar.\ Change “normal mode “ - 146 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LG Electronics LGE Property...
Page 146: Exploded View & Replacement Part List
SJMY00 SUSY00 SACY01 SAFY00 SVLM00 ACGZ00 MDAY00 SBPL00 ACGK00 ACMY00 GMEY01 MWAC00 SNGF01 SNGF00 SPKY00 SACY00 AKAC00 GMEY00 Copyright © 2010 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
Page 148: Replacement Parts
COMPLEX, (empty), , , , , COLOR WITHOUT MTAZ01 TAPE MTAZ0303401 COMPLEX, (empty), , , , , COLOR - 149 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 149 LABEL MLAZ0038301 PID Label 4 Array COLOR WITHOUT SC200 CAN,SHIELD MCBA0059201 PRESS, STS, , , , , COLOR - 150 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150: Main Component
CN601 ENBY0034101 24 PIN,0.4 mm,ETC , ,GB042 H=1.0, Plug BOARD L601 INDUCTOR,CHIP ELCH0005009 100 nH,J ,1005 ,R/TP , - 151 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 151 ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C110 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP - 152 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C139 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C140 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 153 ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C225 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP - 154 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 2.2 uF,10V ,K ,X5R ,TC ,1608 ,R/TP C321 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C323 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C326 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP - 155 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 155 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C470 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP - 156 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP C532 CAP,CHIP,MAKER ECZH0000839 4.7 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP - 157 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 157 CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C715 CAP,CERAMIC,CHIP ECCH0000104 3 pF,50V,C,NP0,TC,1005,R/TP - 158 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 ESC ,85 V,0.3 A,R/TP , ,; , ,85 ,300mA , ,4.0nS MAX D200 DIODE,SWITCHING EDSY0019201 ,150mW ,ESC ,R/TP ,2P ,[empty] - 159 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 159 3.3 uH,N ,2.5*2.0*1.0 ,R/TP ,MLCI Power ,; ,3.3 ,30% ,; ,; L500 INDUCTOR,SMD,POWER ELCP0008007 ,; ,; ,; ,SHIELD ,2.5X2X1MM ,[empty] ,[empty] ,Inductor,Wire Wound,Chip - 160 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160 PCB ASSY,MAIN,PAD R114 SAFP0000401 SHORT PCB ASSY,MAIN,PAD R115 SAFP0000401 SHORT PCB ASSY,MAIN,PAD R116 SAFP0000401 SHORT PCB ASSY,MAIN,PAD SAFP0000401 SHORT - 161 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 161 100 Kohm,1/16W ,J ,1005 ,R/TP RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP - 162 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 SAFP0000401 SHORT R450 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP R460 RES,CHIP,MAKER ERHZ0000411 120 ohm,1/16W ,J ,1005 ,R/TP - 16 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 163 DFN ,10 ,R/TP ,Cal Test Mode Single Charger IC for Micro U201 EUSY0388501 USB ,; ,IC,Charger U202 EUSY0323901 BGA PG-WFSGA ,121 PIN,R/TP ,SMPOWER3 - 164 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 26 MHz,2.5 PPM,10 pF,SMD ,32*15*1.0 ,TI_WL1251 ,; , X500 TCXO EXST0001901 ,2.5PPM ,2.8V , , , , ,SMD ,R/TP - 165 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 165 220 ohm,1/16W ,J ,1005 ,R/TP SPFY02 PCB,MAIN SPFY0223201 FR-4 ,0.8 mm,STAGGERED-8 , ,; , , , , , , , , , - 166 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166 ; , , ,CENTRAL AND SOUTH AMERICA ,IFX , 4GB / MICROSD HC / SSE MLC 4 DIES ,; ,Module SMZY00 MODULE,ETC SMZY0017702 Assembly - 167 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 167: Accessory
; ,RMS 20mW(0.56V,RMS) ,16Ohm+-2.4Ohm 1KHZ EAR PHONE/EAR MIKE SGEY00 SGEY0003744 ,116dB+-3dB 1KHZ,3mW ,116dB 1KHZ ,96dB 100HZ ,[empty] ,BLACK ,PLUG ,GM310, ,Earphone,Stereo - 168 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

LG GM360i Service Manual

1 Introduction

2 Performance

3 Technical Brief

4 Trouble Shooting

5 Download & S/W Upgrade

6 Block Diagram

7 Circuit Diagram

8 BGA Pin Map

9 Pcb Layout

10 Rf Calibration

11 Stand Alone Test

12 Exploded View & Replacement

Exploded View & Replacement Part List

Quick Links

Troubleshooting

Related Manuals for LG GM360i

Summary of Contents for LG GM360i

Table of Contents