User manual LG GX500 SERVICE MANUAL

[. . . ] Service Manual Internal Use Only Service Manual GX500 Model : GX500 Date: March, 2010 / Issue 1. 0 Table Of Contents 1. INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 1 Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 2 Regulatory Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 3 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] TROUBLE SHOOTING 4. 1 Trouble shooting test setup Equipment setup Power on all of test equipment -Connect PIF-UNION JIG or dummy battery to the DUT for power up. -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 Internal Use Only 74/143 - 74 - LGE Property Copyright © 2010 LG Electronics. Only for training and service purposes 4. TROUBLE SHOOTING GX500 Operational Description Revision A 4. 2 Power on Trouble Check Points -Battery Voltage( Need to over 3. 35V) -Power-On Key detection (PWRON signal) -Outputs of LDOs from PMIC TP1 Remote Power On 2V11_RTC RPWRON_EN R203 2K R211 DNI KEY_COL2 VA204 2 1 3 PWRON RPWRON R204 DNI 5 6 4 Q201 TP1 KEY_ROW4 END_KEY R209 10K R213 100K Figure 4-1. Remote Power On Circuit PMIC VUSB VBAT VBAT RESOURCE_CTRL SG3_RPWRON_EN 2V62_VIO SPOWER_INT I2C1_SDA I2C1_SCL C217 2. 2u VBAT R216 27K R206 DNI C237 2. 2u C214 0. 1u 1u VBAT VBAT WDOG PWRON ON_OFF2 C212 1V35_VPLL 2V62_VIO RTC_OUT ON_OFF2 C221 2. 2u C222 2. 2u C223 4. 7K 4. 7K 4. 7K 2. 2K C206 100u 2. 2K R212 100K 1u R208 R205 R207 R219 100K 0. 1u C246 C207 R218 2V8_VVIB 0. 1u C205 R217 USB_OEN USB_DAT_VP USB_SE0_VM 1V8_SD 2V5_VAUDB VBAT TXON_PA TP202 1u A11 L1 B11 B4 A1 J4 K3 L3 K4 L4 L5 J5 L7 K8 L8 K9 L9 K10 J9 A8 A9 C9 B10 A10 B9 B2 A2 C3 B3 A3 C4 B6 C5 B7 A5 A7 C7 A6 B8 C8 K5 K6 J7 2V5_VAUDA 2V85_VFM L6 K7 J8 L11 A4 B5 VBAT L202 10u D202 1V35_CORE VBAT 1V5_VBT 2V7_VRF 2V11_RTC 2V85_VRF 1V5_VRF 2V9_VMME 2V9_SIM 2V65_VBT 1V8_SD MONO_INP MONO_OUTN RREF VREF PUMS3 PUMS2 OUTPORT ON_OFF1 ON_OFF2 I2C_INT I2C_DAT SENSE_IN1 SENSE_IN2 VLED AC + VPLL VSD2 DAT_VP SUSPEND OE_N VUSB VDD_USB FLASH_ON TXONPA I2C_CLK CH_SOURCE MONO_OUTP FLASH_SHINK CHARGE_UC VDD_MONO VSS_MONO VDDPLLIO WDOG MONO_INN POWER_ON BL3_PWM RESOURCE_CRTL VDD_CHARGE SE0_VM VREFEX_M BL1_PWM ON_OFF_OUT BL2_PWM PUMS1 CH_CNTRL SIM1_USB_DP SIM1_USB_DM FB201 PMRSTN 220 B1 C2 D3 C1 D2 E3 D1 E2 E1 RCV VPIN VMIN D+ D- VDD_REF VSD1 AC- VIO VMME VDDMME VDDRF2 C11 C10 D10 D11 E10 E11 F10 F11 G11 G10 H11 H10 H9 J11 K11 J10 L10 RESET_N RESET2_N SLEEP1_N SLEEP2_N VAUDIOA VDDAUDIOA VDDAUDIOB VAUDIOB VAUX VDDAUX VRF2 VRF3 VDDRF13_AFC VRF1 VCXO_EN SIM1_BT_VCXO_EN TP203 F2 F1 G2 G1 H2 H1 U201 VVIB VDDSIMVIB VSIM VAFC VRTC D201 L201 C230 2. 2u C245 2. 2u C243 1u SU1_ISENSE VDDSD1 VDDSD2 SD2_FB VSS_VREF SD2_FBL VSS15 VSS24 VSS11 VSS12 VSS13 VSS14 VSS16 VSS17 VSS20 VSS21 VSS22 VSS23 VSS25 VSS26 VSS28 VSS29 VSS30 VSS10 VSS18 VSS19 VSS27 VSS_SD1 VSS_SD2 SD1_FB SD1_FBL FB202 K1 K2 L2 220 J1 J2 H3 J3 SU1_GATE SU1_GND SU1_FB VDDUMTS VUMTS 10u C238 C218 C201 VSS1 VSS2 VSS3 VSS4 VSS5 VSS6 C204C208 C213 10u 10u 22u C209 2. 2u C240 0. 1u C241 10u C247 2. 2u C224 0. 1u C216 2. 2u VSS9 VSS7 VSS8 C6 D4 D5 D6 D7 D8 E4 E5 E6 E7 E8 E9 F3 F4 F5 F6 F7 F8 F9 G3 G4 G5 G6 G7 G8 G9 H5 H6 H7 J6 D9 H8 H4 C226 10u C244 1u C236 1u C234 1u C227 1u C228 2. 2u C242 2. 2u C210 2. 2u C203 2. 2u C229 2. 2u C232 2. 2u C233 2. 2u 10u 10u 10u Figure 4-2. PMIC Circuit Copyright © 2010 LG Electronics. Only for training and service purposes - 75 - LGE Internal Use Only LG Electronics 75/143 LGE Property 4. TROUBLE SHOOTING GX500 Operational Description Revision A Table 4-1. PMIC GPIO PIN MAP LDO SD1 SD2 VAUX VIO VSIM VMME VUMTS VUSB VLED VAUDIOa VAUDIOb VRF1 VRF2 VRF3 VPLL VRTC VAFC VVIB Net name 1V35_Core 1V8_SD 2V85_VFM 2V62_VIO 2V9_SIM 2V8_VMME 1V5_VBT VUSB VLED 2V5_VAUDA 2V5_VAUDB 2V85_VRF 1V5_VRF 2V65_VBT 1V35_VPLL 2V11_RTC VAFC 2V8_VVIB Output Voltage 1. 35V 1. 8V 2. 9V 2. 62V 2. 9V 2. 9V 2. 85V 3. 1V 2. 9V 2. 5V 2. 5V 2. 85V 1, 53V 2. 7V 1. 35V 2. 11V 2. 65V 2. 8V Output Current 600mA 300mA 100mA 100mA 70mA 150mA 110mA 40mA 10mA 200mA 50mA 150mA 100mA 150mA 30mA 4mA 5mA 140mA Usage Core & for LDO Memory LCD Peripherals SIM card u-SD Not used Not used Not used Stereo headset, Mono earpiece Analog parts of S-Gold 2. 85 V supply for SMARTi-PM RF transceiver 1. 5 V supply for SMARTi-PM RF transceiver Bluetooth S-GOLD3 PLL Real Time Clock Not used Vibrator LGE Internal Use Only - 76 - Copyright © 2010 LG Electronics. Only for training and service purposes LG Electronics 76/143 LGE Property 4. TROUBLE SHOOTING GX500 Operational Description GX500 Operational Description Revision A Revision A Checking Flow Checking Flow START START Connect power supply to the DUT Vbat = over 3. 35V Connect power supply to the DUT Vbat = over 3. 35V Yes Yes “PWRON” signal Check 3 pin of U203 “PWRON” signal Check 3 pin of U203 Yes Yes Check the all LDO’s output Is itthe all LDO’s Check correct?Yes Yes Is the 26MHz clock From X401 signal correct?Is the 26MHz clock From X401 signal correct?Yes Replace main PCB Yes Replace main PCB No No Check solder U201 or replace it Check solder U201 or replace it No No Check the RPWRON, replace Q201 Check the RPWRON, replace Q201 TP1 TP1 Q201 Q201 Figure 4-3. RPWRON U201 U201 No No Check solder X401 or replace it Check solder X401 Check 3 pin of X401 or replace it Or Check 11 pin of U401 Check 3 pin of X401 Or Check 11 pin of U401 Figure 4-5. X-TAL & Transceiver X401 U401 X401 U401 14pin of U401 14pin of U401 1pin of X401 1pin of X401 LG Electronics LG Electronics Copyright © 2010 LG Electronics. Only for training and service purposes 77/143 77/143 77 - LGE Property LGE Property Use Only LGE Internal 4. TROUBLE SHOOTING GX500 Operational Description Revision A 4. 3 Charging trouble Check Points -Connection of TA (check TA voltage 4. 8V) -Charging Current Path component voltage drop -Battery voltage 1 Charging method : CC-CV 2 Charger detect voltage : 4. 8 V 3 Charging time : 3h 15m 4 Charging current : 680 mA 5 CV voltage : 4. 2 V 6 Cutoff current : 120 mA 7 Full charge indication current (icon stop current) : 120 mA 8 Recharge voltage : 4. 16 V 4. 2V~3. 75V 3. 75V~3. 65V 3. 65V~3. 58V 3. 58V~3. 30V TP1 SINGLE CHARGING IC V_BUS TP2 VBAT 2V62_VIO 2V62_VIO 2V62_VIO R324 100Kohms RPWRON_EN 750 (1%) 3. 3K 1 2 3 4 5 PGND IN ISET VSS1 LDO IFULL U310 BQ25040 BAT _PG CHG VSS2 EN_SET 11 10 9 8 7 6 R321 DNI _PPR _EOC _CHG_EN TP1 TP2 R325 R322 C338 1uF C337 1uF C336 1uF 560 ohm->(910mA) 2K(10%)->91mA 780 ohm->(680mA) 820 ohm->(646mA) Figure 4-6. Charging circuit (1%) LGE Internal Use Only - 78 - Copyright © 2010 LG Electronics. Only for training and service purposes LG Electronics R323 100Kohms 78/143 LGE Property 4. TROUBLE SHOOTING GX500 Operational Description GX500 Operational Description Revision A A Revision START START 18pin IO(CN401) 18pin IO(CN401) Is soldered ? [. . . ] Only for training and service purposes - 183 - LGE Internal Use Only 13. EXPLODED VIEW & REPLACEMENT PART LIST Level 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 Location No. R309 R310 R311 R312 R313 R315 R318 R319 R322 R323 R324 R325 R401 R402 R403 R404 R405 R406 R407 R501 R502 R503 R505 R506 R507 R508 R509 R510 R511 R513 R514 Description RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP RES, CHIP, MAKER RES, CHIP RES, CHIP, MAKER CAP, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER CAP, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP RES, CHIP, MAKER RES, CHIP, MAKER RES, CHIP, MAKER Part Number ERHZ0000405 ERHZ0000406 ERHZ0000402 ERHZ0000402 ERHZ0000443 ERHZ0000443 ERHZ0000406 ERHZ0000443 ERHZ0000267 ERHZ0000406 ERHZ0000406 ERHY0035501 ERHZ0000206 ERHY0000185 ERHZ0000405 ECZH0000813 ERHZ0000402 ERHZ0000244 ECZH0000813 ERHZ0000286 ERHZ0000204 ERHZ0000204 ERHZ0000204 ERHZ0000405 ERHZ0000405 ERHZ0000437 ERHZ0000405 ERHY0003201 ERHZ0000405 ERHZ0000206 ERHZ0000244 Spec 10 Kohm, 1/16W , J , 1005 , R/TP 100 Kohm, 1/16W , J , 1005 , R/TP 10 ohm, 1/16W , J , 1005 , R/TP 10 ohm, 1/16W , J , 1005 , R/TP 2200 ohm, 1/16W , J , 1005 , R/TP 2200 ohm, 1/16W , J , 1005 , R/TP 100 Kohm, 1/16W , J , 1005 , R/TP 2200 ohm, 1/16W , J , 1005 , R/TP 3300 ohm, 1/16W , F , 1005 , R/TP 100 Kohm, 1/16W , J , 1005 , R/TP 100 Kohm, 1/16W , J , 1005 , R/TP 750 ohm, 1/16W , F , 1005 , R/TP , ; , 750 , 1% , 1/16W , 1005 , R/TP 10 ohm, 1/16W , F , 1005 , R/TP 820 ohm, 1/16W , F , 1005 , R/TP 10 Kohm, 1/16W , J , 1005 , R/TP 100 pF, 50V , J , NP0 , TC , 1005 , R/TP 10 ohm, 1/16W , J , 1005 , R/TP 22 Kohm, 1/16W , F , 1005 , R/TP 100 pF, 50V , J , NP0 , TC , 1005 , R/TP 4700 ohm, 1/16W , F , 1005 , R/TP 100 Kohm, 1/16W , F , 1005 , R/TP 100 Kohm, 1/16W , F , 1005 , R/TP 100 Kohm, 1/16W , F , 1005 , R/TP 10 Kohm, 1/16W , J , 1005 , R/TP 10 Kohm, 1/16W , J , 1005 , R/TP 2 Kohm, 1/16W , J , 1005 , R/TP 10 Kohm, 1/16W , J , 1005 , R/TP 1000 ohm, 1/16W , F , 1005 , R/TP 10 Kohm, 1/16W , J , 1005 , R/TP 10 ohm, 1/16W , F , 1005 , R/TP 22 Kohm, 1/16W , F , 1005 , R/TP Color Remark LGE Internal Use Only - 184 - Copyright © 2010 LG Electronics. Only for training and service purposes 13. [. . . ]