Service Manual
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... Trouble 42 4.3 TX Trouble 47 4.4 Power On Trouble 53 4.5 Charging Trouble 55 4.6 Vibrator Trouble 57 4.7 LCD Trouble 59 4.8 Camera Trouble 62 4.9 Speaker Trouble 65 4.10 SIM Card Interface Trouble 67 4.11 Earphone Trouble 69 4.12 KEY backlight Trouble 71 4.13 Receiver Trouble 73 4.14 Microphone Trouble 75 4.15 RTC Trouble 77 4.16 Slide on/off Trouble 79 5. ENGINEERING MODE 105 9.1 BB Test [MENU 1 106 9.2 RF Test [MENU 2 108 9.3 MF mode [MENU 3 108 9.4 Trace option [MENU 4 109 9.5 Call timer [MENU 5 109 9.6 Fact. EXPLODED VIEW & REPLACEMENT PART LIST...
... Trouble 42 4.3 TX Trouble 47 4.4 Power On Trouble 53 4.5 Charging Trouble 55 4.6 Vibrator Trouble 57 4.7 LCD Trouble 59 4.8 Camera Trouble 62 4.9 Speaker Trouble 65 4.10 SIM Card Interface Trouble 67 4.11 Earphone Trouble 69 4.12 KEY backlight Trouble 71 4.13 Receiver Trouble 73 4.14 Microphone Trouble 75 4.15 RTC Trouble 77 4.16 Slide on/off Trouble 79 5. ENGINEERING MODE 105 9.1 BB Test [MENU 1 106 9.2 RF Test [MENU 2 108 9.3 MF mode [MENU 3 108 9.4 Trace option [MENU 4 109 9.5 Call timer [MENU 5 109 9.6 Fact. EXPLODED VIEW & REPLACEMENT PART LIST...
Service Manual
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.... Changes in Service A local telephone company may not make changes in service to prevent unauthorized use of the this model. 1.2 Regulatory Information A. If these changes could reasonably be performed only by an unauthorized part (for example, persons other than your company's behalf) can result in substantial additional charges for programming and configuring the equipment to the telephone network, it . The user may make any...
.... Changes in Service A local telephone company may not make changes in service to prevent unauthorized use of the this model. 1.2 Regulatory Information A. If these changes could reasonably be performed only by an unauthorized part (for example, persons other than your company's behalf) can result in substantial additional charges for programming and configuring the equipment to the telephone network, it . The user may make any...
Service Manual
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... the end user. Electrostatic Sensitive Devices ATTENTION Boards, which is ESD handling: • Service personnel should ground themselves by the sign. INTRODUCTION E. Pictures The pictures in these protective packages until these agencies, you may cause problems. H. Copyright © 2007 LG Electronics. Following information is also grounded. • Use a suitable, grounded soldering iron. • Keep sensitive parts in this manual are...
... the end user. Electrostatic Sensitive Devices ATTENTION Boards, which is ESD handling: • Service personnel should ground themselves by the sign. INTRODUCTION E. Pictures The pictures in these protective packages until these agencies, you may cause problems. H. Copyright © 2007 LG Electronics. Following information is also grounded. • Use a suitable, grounded soldering iron. • Keep sensitive parts in this manual are...
Service Manual
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... Internal Use Only Only for Mobile Communications International Portable User Identity Intermediate Frequency LCD LDO LED OPLL Liquid Crystal Display Low Drop Output Light Emitting Diode Offset Phase Locked Loop Copyright © 2007 LG Electronics. 1. INTRODUCTION 1.3 Abbreviations For the purposes of this manual, following abbreviations apply: APC Automatic Power Control BB BER CC-CV DAC DCS Baseband Bit Error...
... Internal Use Only Only for Mobile Communications International Portable User Identity Intermediate Frequency LCD LDO LED OPLL Liquid Crystal Display Low Drop Output Light Emitting Diode Offset Phase Locked Loop Copyright © 2007 LG Electronics. 1. INTRODUCTION 1.3 Abbreviations For the purposes of this manual, following abbreviations apply: APC Automatic Power Control BB BER CC-CV DAC DCS Baseband Bit Error...
Service Manual
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... Switched Telephone Network Radio Frequency Receiving Loudness Rating Root Mean Square Real Time Clock Surface Acoustic Wave Subscriber Identity Module Sending Loudness Rating Static Random Access Memory Pseudo SRAM Side Tone Masking Rating Travel Adapter Time Division Duplex Time Division Multiple Access Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol LGE Internal Use Only -8- 1. Only for training and service...
... Switched Telephone Network Radio Frequency Receiving Loudness Rating Root Mean Square Real Time Clock Surface Acoustic Wave Subscriber Identity Module Sending Loudness Rating Static Random Access Memory Pseudo SRAM Side Tone Masking Rating Travel Adapter Time Division Duplex Time Division Multiple Access Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol LGE Internal Use Only -8- 1. Only for training and service...
Service Manual
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LGE Internal Use Only PERFORMANCE 2. All right reserved. PERFORMANCE 2.1 H/W Features Item Standard Battery Stand by TIME Talk time Stand by time Charging time RX Sensitivity TX output power GPRS compatibility SIM card type Display Status Indicator ANT EAR Phone Jack PC Synchronization Speech coding Data and Fax Vibrator Loud Speaker Voice Recoding Microphone Speaker/Receiver Travel Adapter MIDI Camera Feature Li-ion Polymer, 3.7V 800mAh Up to 200 hrs : Paging Period 5, RSSI...
LGE Internal Use Only PERFORMANCE 2. All right reserved. PERFORMANCE 2.1 H/W Features Item Standard Battery Stand by TIME Talk time Stand by time Charging time RX Sensitivity TX output power GPRS compatibility SIM card type Display Status Indicator ANT EAR Phone Jack PC Synchronization Speech coding Data and Fax Vibrator Loud Speaker Voice Recoding Microphone Speaker/Receiver Travel Adapter MIDI Camera Feature Li-ion Polymer, 3.7V 800mAh Up to 200 hrs : Paging Period 5, RSSI...
Service Manual
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...Receive path features automatic calibration and tracking to 2.9V. The interface features low-voltage digital interface buffers compatible with a battery input voltage of the OthelloTM family. LGE Internal Use Only The transmitter features a translation-loop architecture for training and service purposes - 17 - This allows the external VCTCXO to be directly connected to minimize power...GPRS applications up to program the IC. The AD6549 uses the traditional VCTCXO reference source. The synthesizer lock times are extremely low noise removing the need for channel selection....
...Receive path features automatic calibration and tracking to 2.9V. The interface features low-voltage digital interface buffers compatible with a battery input voltage of the OthelloTM family. LGE Internal Use Only The transmitter features a translation-loop architecture for training and service purposes - 17 - This allows the external VCTCXO to be directly connected to minimize power...GPRS applications up to program the IC. The AD6549 uses the traditional VCTCXO reference source. The synthesizer lock times are extremely low noise removing the need for channel selection....
Service Manual
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.../850 power classes 4 and 5, • DCS 1800 power classes 1 and 2, and • PCS 1900 power classes 1 and 2 Copyright © 2007 LG Electronics. LGE Internal Use Only Peripheral Functions • Parallel and Serial Display Interface • Keypad Interface • Flash Memory Interface • Page-Mode Flash Support • 1.8V and 3.0V, 64 kbps SIM Interface • Universal System Connector Interface • Data Services Interface • Battery Interface...
.../850 power classes 4 and 5, • DCS 1800 power classes 1 and 2, and • PCS 1900 power classes 1 and 2 Copyright © 2007 LG Electronics. LGE Internal Use Only Peripheral Functions • Parallel and Serial Display Interface • Keypad Interface • Flash Memory Interface • Page-Mode Flash Support • 1.8V and 3.0V, 64 kbps SIM Interface • Universal System Connector Interface • Data Services Interface • Battery Interface...
Service Manual
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... LG Electronics. LGE Internal Use Only The descriptions about the signals are required. Reset SIM block Table 3-5. Signals SIM_DATA SIM_CLK SIM_RST (GPIO_23) Description This pin receives and sends data to communicate with SIM card, 3 signals SIM_DATA, SIM_CLK, SIM_RST(GPIO_23) are given by bellow Table 3-5 in detail. All right reserved. 3. In order to SIM card. Clock 3.25MHz frequency. TECHNICAL BRIEF D. The AD6720 checks status periodically during established call mode whether SIM card is inserted...
... LG Electronics. LGE Internal Use Only The descriptions about the signals are required. Reset SIM block Table 3-5. Signals SIM_DATA SIM_CLK SIM_RST (GPIO_23) Description This pin receives and sends data to communicate with SIM card, 3 signals SIM_DATA, SIM_CLK, SIM_RST(GPIO_23) are given by bellow Table 3-5 in detail. All right reserved. 3. In order to SIM card. Clock 3.25MHz frequency. TECHNICAL BRIEF D. The AD6720 checks status periodically during established call mode whether SIM card is inserted...
Service Manual
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... - VSIM : supplies the SIM interface circuitry on the digital baseband processor (1,8V or 2.8V, 150mA) - It can be used for training and service purposes BATTYPE : battery type identification input - Only for charging - LDO Block There are implemented in the AD6720. - VEXT : supplies Radio digital interface and high voltage interface (2.8V, 170mA) - VRTC : supplies the Real-Time Clock module (1.8 V, 20 µ...
... - VSIM : supplies the SIM interface circuitry on the digital baseband processor (1,8V or 2.8V, 150mA) - It can be used for training and service purposes BATTYPE : battery type identification input - Only for charging - LDO Block There are implemented in the AD6720. - VEXT : supplies Radio digital interface and high voltage interface (2.8V, 170mA) - VRTC : supplies the Real-Time Clock module (1.8 V, 20 µ...
Service Manual
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...:15] : Parallel data lines. • LCD_ID[1:2] : LCD type selection signals - LCD_ID[2:3] : for the future using • For using 262K color, data buses should be 16 bits. Copyright © 2007 LG Electronics. TECHNICAL BRIEF 3.7 Display and Interface • Main LCD Properties Active Screen Size Color Depth Resolution Spec. 28.032*35.04 262,144 128 X RGB X 160 Unit mm colors dots Controlled...
...:15] : Parallel data lines. • LCD_ID[1:2] : LCD type selection signals - LCD_ID[2:3] : for the future using • For using 262K color, data buses should be 16 bits. Copyright © 2007 LG Electronics. TECHNICAL BRIEF 3.7 Display and Interface • Main LCD Properties Active Screen Size Color Depth Resolution Spec. 28.032*35.04 262,144 128 X RGB X 160 Unit mm colors dots Controlled...
Service Manual
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TROUBLE SHOOTING Checking Flow START NO Check Battery Voltage > 3.35V YES Push power-on procedure is Completed. All right reserved. 4. THE PHONE WILL POWER ON. Copyright © 2007 LG Electronics. The problem may NO YES be elsewhere. Inc. Re-download software Does it work properly? The power-on key NO And check the level change of PWRKEY YES Check the voltage of NO The LDO outputs at U101 Charge or...
TROUBLE SHOOTING Checking Flow START NO Check Battery Voltage > 3.35V YES Push power-on procedure is Completed. All right reserved. 4. THE PHONE WILL POWER ON. Copyright © 2007 LG Electronics. The problem may NO YES be elsewhere. Inc. Re-download software Does it work properly? The power-on key NO And check the level change of PWRKEY YES Check the voltage of NO The LDO outputs at U101 Charge or...
Service Manual
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Copyright © 2007 LG Electronics. 4. TROUBLE SHOOTING Checking Flow SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu START Is the voltage at pin 1 of Q300 high ? Only for training and service purposes YES Replace vrbrator YES Vibrator Working well ! NO NO NO NO Check the soldering of R322, R324 YES NO Resolder R322, R324 Check the soldering of R318,R321 YES NO...
Copyright © 2007 LG Electronics. 4. TROUBLE SHOOTING Checking Flow SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu START Is the voltage at pin 1 of Q300 high ? Only for training and service purposes YES Replace vrbrator YES Vibrator Working well ! NO NO NO NO Check the soldering of R322, R324 YES NO Resolder R322, R324 Check the soldering of R318,R321 YES NO...
Service Manual
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... service purposes YES Change SIM Card Redownload SW. Copyright © 2007 LG Electronics. All right reserved. Our phone supports 3V ? YES NO Voltage output NO of J300 is 2.85V? YES Replace or Re-solder J300 Check the U101 Change the SIM Card NO And try again. supports only 3V SIM card. Change the main board LGE Internal Use Only - 68 - Does it work Properly? NO Does it work Properly? TROUBLE...
... service purposes YES Change SIM Card Redownload SW. Copyright © 2007 LG Electronics. All right reserved. Our phone supports 3V ? YES NO Voltage output NO of J300 is 2.85V? YES Replace or Re-solder J300 Check the U101 Change the SIM Card NO And try again. supports only 3V SIM card. Change the main board LGE Internal Use Only - 68 - Does it work Properly? NO Does it work Properly? TROUBLE...
Service Manual
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... the phone NO change the earphone Re-download software Or check the soldering NO Voltage at U301.5 and U302.3 are high? Inc. YES Re-download software (DBB does not detect the earphone Change the earphone And try again NO Can you hear your voice from the earphone? Earphone will work well? YES Set the audio part of CN300.8 Or change to echo mode NO...
... the phone NO change the earphone Re-download software Or check the soldering NO Voltage at U301.5 and U302.3 are high? Inc. YES Re-download software (DBB does not detect the earphone Change the earphone And try again NO Can you hear your voice from the earphone? Earphone will work well? YES Set the audio part of CN300.8 Or change to echo mode NO...
Service Manual
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... Battery Audio DAI Bluetooth SAR Test All Auto Test Backlight Buzzer Vibrator LCD Key PAD MicSpkTest Camera Video Camera UART On UART Off Bluetooth on is designed to allow a service man/engineer to non-engineering mode operation. Engineering Mode Menu Tree Engineering Mode BB Test RF Test MF Mode Trace option Call Timer Fact. All right reserved. LGE Internal Use Only ENGINEERING MODE 9. B. Pressing 'back' key will switch back to view...
... Battery Audio DAI Bluetooth SAR Test All Auto Test Backlight Buzzer Vibrator LCD Key PAD MicSpkTest Camera Video Camera UART On UART Off Bluetooth on is designed to allow a service man/engineer to non-engineering mode operation. Engineering Mode Menu Tree Engineering Mode BB Test RF Test MF Mode Trace option Call Timer Fact. All right reserved. LGE Internal Use Only ENGINEERING MODE 9. B. Pressing 'back' key will switch back to view...
Service Manual
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... at the same time, then off 9.3 MF mode [MENU 3] This manufacturing mode is designed to test the Specific Absorption Rate. 1) SAR test on : Phone continuously process TX only. If the key is on the screen. Copyright © 2007 LG Electronics. Selecting this menu will be completed in the following sequence. Volume 1, Volume 2, Volume 3, Volume 0 (mute), Volume 4, Volume 5. 9.3.4 Vibrator Vibrator is working properly, name of Melody. Inc. Call-setup equipment is not...
... at the same time, then off 9.3 MF mode [MENU 3] This manufacturing mode is designed to test the Specific Absorption Rate. 1) SAR test on : Phone continuously process TX only. If the key is on the screen. Copyright © 2007 LG Electronics. Selecting this menu will be completed in the following sequence. Volume 1, Volume 2, Volume 3, Volume 0 (mute), Volume 4, Volume 5. 9.3.4 Vibrator Vibrator is working properly, name of Melody. Inc. Call-setup equipment is not...
Service Manual
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... nor users. 9.5 Call timer [MENU 5] This menu is to set up the default value in the phone. 9. Reset (i.e.Factory Reset) should be used during the Manufacturing process. 2 Servicemen should NOT progress this , [00:00:00]. 9.6 Fact. Reset [MENU 6] This Factory Reset menu is to format data block in the flash memory and this procedure set the Digital Audio Interface Mode for training and service purposes - 109 - cannot be restored again. 9.7 S/W version This displays software version stored in data block.
... nor users. 9.5 Call timer [MENU 5] This menu is to set up the default value in the phone. 9. Reset (i.e.Factory Reset) should be used during the Manufacturing process. 2 Servicemen should NOT progress this , [00:00:00]. 9.6 Fact. Reset [MENU 6] This Factory Reset menu is to format data block in the flash memory and this procedure set the Digital Audio Interface Mode for training and service purposes - 109 - cannot be restored again. 9.7 S/W version This displays software version stored in data block.
Service Manual
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... equipment then write it into calibration data block of flash memory in GSM phone. 11.2 Equipment List Equipment for Calibration Wireless Communication Test Set RS-232 Cable and Test JIG RF Cable Power Supply GPIO interface card Calibration & Final test software Test SIM Card PC (for training and service purposes - 113 - Equipment Setup Copyright © 2007 LG Electronics. Only for Software Installation) Type / Model HP-8960 HP-66311B HP-GPIB...
... equipment then write it into calibration data block of flash memory in GSM phone. 11.2 Equipment List Equipment for Calibration Wireless Communication Test Set RS-232 Cable and Test JIG RF Cable Power Supply GPIO interface card Calibration & Final test software Test SIM Card PC (for training and service purposes - 113 - Equipment Setup Copyright © 2007 LG Electronics. Only for Software Installation) Type / Model HP-8960 HP-66311B HP-GPIB...
Service Manual
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... charging state of Test JIG 11.3 Test Jig Operation Power Source Power Supply Table 11-2 Jig Power Description Usually 4.0V Switch Number Switch 1 Switch 2 Switch 3 Switch 4 Name ADI-REMOTE TI-REMOTE VBAT PS Description In ON state, phone is awaked. Inc. All right reserved. It is used ADI chipset. It is used TI chipset. 11. Copyright © 2007 LG Electronics. AUTO CALIBRATION JTAG2 JTAG1 USB MON PHONE...
... charging state of Test JIG 11.3 Test Jig Operation Power Source Power Supply Table 11-2 Jig Power Description Usually 4.0V Switch Number Switch 1 Switch 2 Switch 3 Switch 4 Name ADI-REMOTE TI-REMOTE VBAT PS Description In ON state, phone is awaked. Inc. All right reserved. It is used ADI chipset. It is used TI chipset. 11. Copyright © 2007 LG Electronics. AUTO CALIBRATION JTAG2 JTAG1 USB MON PHONE...