Service Manual
Page 4
... Trouble Shooting 85 4.13 Ear-Mic Jack Detection Trouble Shooting 87 4.14 Ear-Mic Hook Detection Trouble Shooting 88 4.15 Ear-Mic Headset MIC Trouble Shooting 89 4.16 Ear-Mic Headset HSOR/HSOL Trouble Shooting 90 4.17 FM-Radio Trouble Shooting 91 4.18 Transflash Trouble Shooting 93 4.19 Main Key Backlight LED...
... Trouble Shooting 85 4.13 Ear-Mic Jack Detection Trouble Shooting 87 4.14 Ear-Mic Hook Detection Trouble Shooting 88 4.15 Ear-Mic Headset MIC Trouble Shooting 89 4.16 Ear-Mic Headset HSOR/HSOL Trouble Shooting 90 4.17 FM-Radio Trouble Shooting 91 4.18 Transflash Trouble Shooting 93 4.19 Main Key Backlight LED...
Service Manual
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...in Vibrator Bluetooth V2.0, HSP, HFP, OPP, FTP(server), BPP, A2DP, AVRCP MIDI(for training and service purposes Copyright © 2008 LG Electronics. 2. Only for Buzzer Function) SW Decoded 64Poly Music Player MP3/ AAC/AAC+ Camcorder MPEG4, H.263, H.264 Voice Recording Yes Speaker... Phone mode Yes Support Travel Adapter Yes CDROM Yes Stereo Headset Yes Data Cable Yes T-Flash (External Memory) Yes Comment Function Key: 4 Key Navigation, F1, F2, F3, F4, SND, CLR, End...
...in Vibrator Bluetooth V2.0, HSP, HFP, OPP, FTP(server), BPP, A2DP, AVRCP MIDI(for training and service purposes Copyright © 2008 LG Electronics. 2. Only for Buzzer Function) SW Decoded 64Poly Music Player MP3/ AAC/AAC+ Camcorder MPEG4, H.263, H.264 Voice Recording Yes Speaker... Phone mode Yes Support Travel Adapter Yes CDROM Yes Stereo Headset Yes Data Cable Yes T-Flash (External Memory) Yes Comment Function Key: 4 Key Navigation, F1, F2, F3, F4, SND, CLR, End...
Service Manual
Page 27
...and service purposes Only for telechips O telechips BP enable I End Of Charge O charger enable O telechips IO enable O Wheel chip reset O Headset path select I/O Wheel Touch key control I FM radio Interrupt O Hook detect enable O Sub LCD Reset O speaker enable O DA& .../O state, and enable level, is using 36 resources except 3 resources dedicated to telechips - 3. HG_EN. Copyright © 2008 LG Electronics. Inc. GPIO Pin GPIO_00 GPIO_01 GPIO_02 GPIO_03 GPIO_04 GPIO_05 GPIO_06 GPIO_07 GPIO_08 GPIO_09 GPIO_10 GPIO_11 GPIO_12 GPIO_13 GPIO_16 GPIO_17 GPIO_18 GPIO_19 ...
...and service purposes Only for telechips O telechips BP enable I End Of Charge O charger enable O telechips IO enable O Wheel chip reset O Headset path select I/O Wheel Touch key control I FM radio Interrupt O Hook detect enable O Sub LCD Reset O speaker enable O DA& .../O state, and enable level, is using 36 resources except 3 resources dedicated to telechips - 3. HG_EN. Copyright © 2008 LG Electronics. Inc. GPIO Pin GPIO_00 GPIO_01 GPIO_02 GPIO_03 GPIO_04 GPIO_05 GPIO_06 GPIO_07 GPIO_08 GPIO_09 GPIO_10 GPIO_11 GPIO_12 GPIO_13 GPIO_16 GPIO_17 GPIO_18 GPIO_19 ...
Service Manual
Page 36
... 9 VBAT 10 11 PWON 12 VCHG_IN 13 14 UART3_DSR 15 VBUS_IN 16 UART2_TX 17 UART2_RX 18 GND I/ O Comme nt I FM signal antenna I Headset Mic signal I Jack type deteect I Headset receiver Left I Headset receiver Right I Multiport : UART, USB 2.0 , Remmoc on Interrupt I Multiport : UART, USB 2.0, Remmocon ADC valu I Jack detect signal Battery power O External Power...
... 9 VBAT 10 11 PWON 12 VCHG_IN 13 14 UART3_DSR 15 VBUS_IN 16 UART2_TX 17 UART2_RX 18 GND I/ O Comme nt I FM signal antenna I Headset Mic signal I Jack type deteect I Headset receiver Left I Headset receiver Right I Multiport : UART, USB 2.0 , Remmoc on Interrupt I Multiport : UART, USB 2.0, Remmocon ADC valu I Jack detect signal Battery power O External Power...
Service Manual
Page 86
Inc. LGE Internal Use Only 4. Check the Ear-Jack Detection. NO Re-solder Pin #8 of phone. Only for training and service purposes - 87 - Trouble Shooting 4.13 Ear-Mic Jack Detection Trouble Shooting START Disassemble the rear case of CN300 YES The main_PCB has a Problem, Change the main_PCB. NO Re-solder FB303, VA301 YES Check the soldering status Of CN300. CN300 Copyright © 2008 LG Electronics. All right reserved. Is it O.K? Connect the Ear-Mic Headset to the Ear-Mic Socket of VA301 low? Is the status of phone.
Inc. LGE Internal Use Only 4. Check the Ear-Jack Detection. NO Re-solder Pin #8 of phone. Only for training and service purposes - 87 - Trouble Shooting 4.13 Ear-Mic Jack Detection Trouble Shooting START Disassemble the rear case of CN300 YES The main_PCB has a Problem, Change the main_PCB. NO Re-solder FB303, VA301 YES Check the soldering status Of CN300. CN300 Copyright © 2008 LG Electronics. All right reserved. Is it O.K? Connect the Ear-Mic Headset to the Ear-Mic Socket of VA301 low? Is the status of phone.
Service Manual
Page 87
YES Check the soldering status Of C307,C308,L303,U302 YES U103(DBB) is broken. Is the status of phone. NO Ear-Mic Headset has a problem. Exchange the Ear-Mic Headset NO Re-solder C307,C308,L303,U302 LGE Internal Use Only - 88 - All right reserved. Press the HOOK Button. Only for training and service purposes Change the board. Trouble Shooting 4.14 Ear-Mic Hook Detection Trouble Shooting START Disassemble the rear case of FB300 LOW? Inc. Copyright © 2008 LG Electronics. 4. Connect the Ear-Mic Headset to the Ear-Mic Socket of phone.
YES Check the soldering status Of C307,C308,L303,U302 YES U103(DBB) is broken. Is the status of phone. NO Ear-Mic Headset has a problem. Exchange the Ear-Mic Headset NO Re-solder C307,C308,L303,U302 LGE Internal Use Only - 88 - All right reserved. Press the HOOK Button. Only for training and service purposes Change the board. Trouble Shooting 4.14 Ear-Mic Hook Detection Trouble Shooting START Disassemble the rear case of FB300 LOW? Inc. Copyright © 2008 LG Electronics. 4. Connect the Ear-Mic Headset to the Ear-Mic Socket of phone.
Service Manual
Page 88
... the Ear-Mic Socket of CN300 Copyright © 2008 LG Electronics. Change the board. All right reserved. Resolder Pin #2 of phone. Inc. Trouble Shooting 4.15 Ear-Mic Headset MIC Trouble Shooting START Disassemble the rear case of R300,R301. YES NO Check the status of phone. Is it O.K? 4. Only for training and...
... the Ear-Mic Socket of CN300 Copyright © 2008 LG Electronics. Change the board. All right reserved. Resolder Pin #2 of phone. Inc. Trouble Shooting 4.15 Ear-Mic Headset MIC Trouble Shooting START Disassemble the rear case of R300,R301. YES NO Check the status of phone. Is it O.K? 4. Only for training and...
Service Manual
Page 89
... START NO Check the resistance between HSOUTR/L & GND of phone. YES The main_PCB has a Problem, Change the main_PCB. Exchange the Ear-Mic Headset Did you hear TDMA noise? NO YES Re-solder C302-C305 Check the soldering status FB301,FB302,U604, L101, L102, C120, C121, C125,... the Ear-Mic Socket. Ear-Mic Headset has a problem. YES Disassemble the rear case of the Headset. 16 0hm ± 15%? Inc. All right reserved. Only for training and service purposes 4. Copyright © 2008 LG Electronics. NO Re-solder FB301, FB302, U604, L101, L102, C120, C121, C125, C126, L300...
... START NO Check the resistance between HSOUTR/L & GND of phone. YES The main_PCB has a Problem, Change the main_PCB. Exchange the Ear-Mic Headset Did you hear TDMA noise? NO YES Re-solder C302-C305 Check the soldering status FB301,FB302,U604, L101, L102, C120, C121, C125,... the Ear-Mic Socket. Ear-Mic Headset has a problem. YES Disassemble the rear case of the Headset. 16 0hm ± 15%? Inc. All right reserved. Only for training and service purposes 4. Copyright © 2008 LG Electronics. NO Re-solder FB301, FB302, U604, L101, L102, C120, C121, C125, C126, L300...
Service Manual
Page 90
... - LGE Internal Use Only YES U103(DBB) is shown below. NO Go to EAR-MIC Headset Mic trouble shooting NO Re-solder R302,R304,R308,U301 Copyright © 2008 LG Electronics. All right reserved. Trouble Shooting z Ear-Mic Headset Operation scheme is broken. 4. HSMICIP C307 0.1u C308 120p VRIO R302 220K HOOK_DETECT U302...
... - LGE Internal Use Only YES U103(DBB) is shown below. NO Go to EAR-MIC Headset Mic trouble shooting NO Re-solder R302,R304,R308,U301 Copyright © 2008 LG Electronics. All right reserved. Trouble Shooting z Ear-Mic Headset Operation scheme is broken. 4. HSMICIP C307 0.1u C308 120p VRIO R302 220K HOOK_DETECT U302...
Service Manual
Page 110
... SDRAM_SBANK0 SDRAM_NSRAS H3 J3 SDRAM_NSCAS SDRAM_NSWE E3 F3 SDRAM_NSDQMU SDRAM_NSDQML N4 L3 SDRAM_SDCLKX SDRAM_DQSH J4 SDRAM_DQSL E SD_CS K4 SDRAM_CS GPIO 3(INT_OUT) UART3 : B/T Headset B/T, AT Command U103 PD761811BZVL GPIO 48 MMC1_CLK MMC1_DAT0 MMC1_DAT1 GPIO 36 --> Useless using VRMMC MMC1_DAT2 MMC1_DAT3 MMC1_CMD GPIO_33 Useless GPIO33 becauseof sleep crt MMC1_PBIAS ...1.8 200 VREXTH 1.8 / 2.8 [email protected] [email protected] VREXTL 1.3/1.05 1.8 / 2.8 [email protected] [email protected]~2.8V C157 10u 0.1u C158 0.1u C159 2.2u C156 7 8 9 Copyright © 2008 LG Electronics. All right reserved.
... SDRAM_SBANK0 SDRAM_NSRAS H3 J3 SDRAM_NSCAS SDRAM_NSWE E3 F3 SDRAM_NSDQMU SDRAM_NSDQML N4 L3 SDRAM_SDCLKX SDRAM_DQSH J4 SDRAM_DQSL E SD_CS K4 SDRAM_CS GPIO 3(INT_OUT) UART3 : B/T Headset B/T, AT Command U103 PD761811BZVL GPIO 48 MMC1_CLK MMC1_DAT0 MMC1_DAT1 GPIO 36 --> Useless using VRMMC MMC1_DAT2 MMC1_DAT3 MMC1_CMD GPIO_33 Useless GPIO33 becauseof sleep crt MMC1_PBIAS ...1.8 200 VREXTH 1.8 / 2.8 [email protected] [email protected] VREXTL 1.3/1.05 1.8 / 2.8 [email protected] [email protected]~2.8V C157 10u 0.1u C158 0.1u C159 2.2u C156 7 8 9 Copyright © 2008 LG Electronics. All right reserved.
Service Manual
Page 115
... 1B0 1A 8 MIC_P MM_MICP 1 1B1 7 S1 B ABB_MICN 2 2B0 2A 5 MIC_N MM_MICN 3 2B1 4 GND S2 6 9 VCC CAM_RECORD_SEL From TC C608 0.1u R601 100K SPEAKER & RECEIVER 18P HEADSET SWITCH ( MM HS | ABB HS ) VBAT RCV_P R602 R604 RCV_N C620 27p 10 L600 100nH C624 100p SPK_AMPP 10 L601 100nH C625 27p SPK_AMPN U603... 1A 8 1 1B1 7 S1 2 2B0 5 2A 3 2B1 S2 6 4 9 GND VCC C627 0.1u HSOUTL HSOUTR HS_PATH_SEL From DBB for training and service purposes Inc. Copyright © 2008 LG Electronics.
... 1B0 1A 8 MIC_P MM_MICP 1 1B1 7 S1 B ABB_MICN 2 2B0 2A 5 MIC_N MM_MICN 3 2B1 4 GND S2 6 9 VCC CAM_RECORD_SEL From TC C608 0.1u R601 100K SPEAKER & RECEIVER 18P HEADSET SWITCH ( MM HS | ABB HS ) VBAT RCV_P R602 R604 RCV_N C620 27p 10 L600 100nH C624 100p SPK_AMPP 10 L601 100nH C625 27p SPK_AMPN U603... 1A 8 1 1B1 7 S1 2 2B0 5 2A 3 2B1 S2 6 4 9 GND VCC C627 0.1u HSOUTL HSOUTR HS_PATH_SEL From DBB for training and service purposes Inc. Copyright © 2008 LG Electronics.