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... Fact. EXPLODED VIEW & REPLACEMENT PART LIST ..... 119 12.1 Exploded View 119 12.2 Replacement Parts 121 12.3 Accessory 137 Copyright © 2007 LG Electronics. LGE Internal Use Only INTRODUCTION 5 1.1 Purpose 5 1.2 Regulatory Information 5 1.3 Abbreviations 7 2. STAND ALONE TEST 110 10.1 Introduction 110 10... Of Contents 1. Only for Triband(FL600 19 3.4 26 MHz Clock (VCTCXO, X600 20 3.5 Baseband Processor (AD6720 , U101)..21 3.6 Battery Charging Block 26 3.7 Display and Interface 28 3.8 Camera IC(AIT701G , U401 30 3.9 Keypad Switches and Scanning 32 3.10 Microphone 34...
... Fact. EXPLODED VIEW & REPLACEMENT PART LIST ..... 119 12.1 Exploded View 119 12.2 Replacement Parts 121 12.3 Accessory 137 Copyright © 2007 LG Electronics. LGE Internal Use Only INTRODUCTION 5 1.1 Purpose 5 1.2 Regulatory Information 5 1.3 Abbreviations 7 2. STAND ALONE TEST 110 10.1 Introduction 110 10... Of Contents 1. Only for Triband(FL600 19 3.4 26 MHz Clock (VCTCXO, X600 20 3.5 Baseband Processor (AD6720 , U101)..21 3.6 Battery Charging Block 26 3.7 Display and Interface 28 3.8 Camera IC(AIT701G , U401 30 3.9 Keypad Switches and Scanning 32 3.10 Microphone 34...
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.../HR Yes Yes Yes Yes Yes One way speaker Yes 64 Poly (Mono SPK) VGA Comment Copyright © 2007 LG Electronics. 2. Only for training and service purposes -9- Inc. 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...
.../HR Yes Yes Yes Yes Yes One way speaker Yes 64 Poly (Mono SPK) VGA Comment Copyright © 2007 LG Electronics. 2. Only for training and service purposes -9- Inc. 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...
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... 3.63 ~ 3.70 V 2 3.70 ~ 3.76 V 3 3.76 ~ 3.89 V 4 3.89 V ~ 3.63 0.03V (Call) every 1 minutes 3.48 0.03V (Standby) Copyright © 2007 LG Electronics. All right reserved. LGE Internal Use Only Ringer set as ringer. 2. 2. PERFORMANCE Item Description 14 STMR 15 Stability Margin 16 Distortion 17 Side Tone ...Distortion System frequency 18 (13 MHz) tolerance 19 32.768KHz tolerance 20 Ringer Volume 21 Charge Current 22 Antenna Display 23 Battery Indicator 24 Low Voltage Warning Specification 13 5 dB > 6 dB dB to ARL (dB) -35 -30 -20 -10 0 7 10 ...
... 3.63 ~ 3.70 V 2 3.70 ~ 3.76 V 3 3.76 ~ 3.89 V 4 3.89 V ~ 3.63 0.03V (Call) every 1 minutes 3.48 0.03V (Standby) Copyright © 2007 LG Electronics. All right reserved. LGE Internal Use Only Ringer set as ringer. 2. 2. PERFORMANCE Item Description 14 STMR 15 Stability Margin 16 Distortion 17 Side Tone ...Distortion System frequency 18 (13 MHz) tolerance 19 32.768KHz tolerance 20 Ringer Volume 21 Charge Current 22 Antenna Display 23 Battery Indicator 24 Low Voltage Warning Specification 13 5 dB > 6 dB dB to ARL (dB) -35 -30 -20 -10 0 7 10 ...
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2. All right reserved. Copyright © 2007 LG Electronics. Inc. PERFORMANCE Item Description 25 Forced shut down Voltage 26 Battery Type 27 Travel Charger Specification 3.33 0.03 V 1 Li-ion Battery Standard Voltage = 3.7 V Battery full charge voltage = 4.2 V Capacity: 830mAh Switching-mode charger Input: 100 ~ 240 V, 50/60 Hz Output: 5.2 V, 800 mA LGE Internal Use Only - 14 - Only for training and service purposes
2. All right reserved. Copyright © 2007 LG Electronics. Inc. PERFORMANCE Item Description 25 Forced shut down Voltage 26 Battery Type 27 Travel Charger Specification 3.33 0.03 V 1 Li-ion Battery Standard Voltage = 3.7 V Battery full charge voltage = 4.2 V Capacity: 830mAh Switching-mode charger Input: 100 ~ 240 V, 50/60 Hz Output: 5.2 V, 800 mA LGE Internal Use Only - 14 - Only for training and service purposes
Service Manual
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Both PA blocks share common power supply pins to minimize battery drain. Extremely low leakage current (2.5 µA, typical) of output power. The ENABLE input allows initial turn-on a multi-layer laminate substrate. Figure 1. Inc. All ...BRIEF 3.1 Power Amplifier (SKY77318, U600) The SKY77318 Power Amplifier Module (PAM) is encapsulated with an internal current-sense resistor. Functional Block Diagram Copyright © 2007 LG Electronics. 3. The PAM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation. In Figure 1 below, the BS pin selects the PA output...
Both PA blocks share common power supply pins to minimize battery drain. Extremely low leakage current (2.5 µA, typical) of output power. The ENABLE input allows initial turn-on a multi-layer laminate substrate. Figure 1. Inc. All ...BRIEF 3.1 Power Amplifier (SKY77318, U600) The SKY77318 Power Amplifier Module (PAM) is encapsulated with an internal current-sense resistor. Functional Block Diagram Copyright © 2007 LG Electronics. 3. The PAM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation. In Figure 1 below, the BS pin selects the PA output...
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... (GSM) RF and DC Ground RF and DC Ground RF and DC Ground RF Output 1710-1910 MHz (DCS 1800, PCS1900) RF and DC Ground Battery input to high side of intemal sense resistor BiCMOS Enable RF and DC Ground Power Control Bias Voltage Ground Pad, device underside Table 4. Copyright ©...
... (GSM) RF and DC Ground RF and DC Ground RF and DC Ground RF Output 1710-1910 MHz (DCS 1800, PCS1900) RF and DC Ground Battery input to high side of intemal sense resistor BiCMOS Enable RF and DC Ground Power Control Bias Voltage Ground Pad, device underside Table 4. Copyright ©...
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... direct conversion re-ceiver architecture of between 2.9V and 5.5V. The interface features low-voltage digital interface buffers compatible with a battery input voltage of the OthelloTM family. Inc. LGE Internal Use Only The translation-loop modulator and TX VCO are required. This ... for channel selection. Comprehensive power down options are included to remove DC offsets. Figure 2 AD6549 Block Diagram Copyright © 2007 LG Electronics. 3. The RF is used to the baseband analog processor. The Receive path features automatic calibration and tracking to minimize power ...
... direct conversion re-ceiver architecture of between 2.9V and 5.5V. The interface features low-voltage digital interface buffers compatible with a battery input voltage of the OthelloTM family. Inc. LGE Internal Use Only The translation-loop modulator and TX VCO are required. This ... for channel selection. Comprehensive power down options are included to remove DC offsets. Figure 2 AD6549 Block Diagram Copyright © 2007 LG Electronics. 3. The RF is used to the baseband analog processor. The Receive path features automatic calibration and tracking to minimize power ...
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... TX LDO Output (1) 10 TXOP_LO Transmit O/P (850/900MHz) 11 TXOP_HI Transmit O/P (1800/1900MHz) 12 VCC_TXVCO TX VCO supply (1) 13 VDD Serial interface supply 14 VBAT Battery I/P for training and service purposes All right reserved. Only for LDO reg's 15 VLDO1 LDO regulator Output (2) 16 VLDO2 LO VCO Supply (3) No Name 17... input E-GSM LNA input GSM 850 LNA input GSM 850 LNA input Table 1 AD6548/9 Pin Descriptions LGE Internal Use Only - 18 - 3. Inc. Copyright © 2007 LG Electronics.
... TX LDO Output (1) 10 TXOP_LO Transmit O/P (850/900MHz) 11 TXOP_HI Transmit O/P (1800/1900MHz) 12 VCC_TXVCO TX VCO supply (1) 13 VDD Serial interface supply 14 VBAT Battery I/P for training and service purposes All right reserved. Only for LDO reg's 15 VLDO1 LDO regulator Output (2) 16 VLDO2 LO VCO Supply (3) No Name 17... input E-GSM LNA input GSM 850 LNA input GSM 850 LNA input Table 1 AD6548/9 Pin Descriptions LGE Internal Use Only - 18 - 3. Inc. Copyright © 2007 LG Electronics.
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...Flash Support • 1.8V and 3.0V, 64 kbps SIM Interface • Universal System Connector Interface • Data Services Interface • Battery Interface (e.g. Inc. Only for training and service purposes - 21 - 3. The AD6720 baseband transmit section supports the following mobile station GMSK modulation...classes 4 and 5, • DCS 1800 power classes 1 and 2, and • PCS 1900 power classes 1 and 2 Copyright © 2007 LG Electronics. Control Processor Subsystem including: • 32-bit MCU ARM7TDMI® Control Processor • 39 MHz operation at 1.8V • Data and...
...Flash Support • 1.8V and 3.0V, 64 kbps SIM Interface • Universal System Connector Interface • Data Services Interface • Battery Interface (e.g. Inc. Only for training and service purposes - 21 - 3. The AD6720 baseband transmit section supports the following mobile station GMSK modulation...classes 4 and 5, • DCS 1800 power classes 1 and 2, and • PCS 1900 power classes 1 and 2 Copyright © 2007 LG Electronics. Control Processor Subsystem including: • 32-bit MCU ARM7TDMI® Control Processor • 39 MHz operation at 1.8V • Data and...
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... digital baseband processor (1,8V or 2.8V, 150mA) - VVCXO : supplies the voltage controlled crystal oscillator ( 2.75 V, 10 mA) 3.6 Battery Charging Block 1. If AD6720 detects that Charger is lower than 3.2V, the precharge(low current charge mode) starts firstly. - Pins used ...supplies external memory and the interface to 3.2V the CC-CV charging starts. 3. VCHG : charger supply. - VBATSENSE : battery voltage sense input. - 3. Copyright © 2007 LG Electronics. TECHNICAL BRIEF E. VEXT : supplies Radio digital interface and high voltage interface (2.8V, 170mA) - VABB : supplies ...
... digital baseband processor (1,8V or 2.8V, 150mA) - VVCXO : supplies the voltage controlled crystal oscillator ( 2.75 V, 10 mA) 3.6 Battery Charging Block 1. If AD6720 detects that Charger is lower than 3.2V, the precharge(low current charge mode) starts firstly. - Pins used ...supplies external memory and the interface to 3.2V the CC-CV charging starts. 3. VCHG : charger supply. - VBATSENSE : battery voltage sense input. - 3. Copyright © 2007 LG Electronics. TECHNICAL BRIEF E. VEXT : supplies Radio digital interface and high voltage interface (2.8V, 170mA) - VABB : supplies ...
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LGE Internal Use Only All right reserved. 3. Inc. Only for training and service purposes - 27 - CIRCUIT FOR BATTERY CHARGING Copyright © 2007 LG Electronics. TECHNICAL BRIEF PRE_CHARGE_R VCHARGE C224 0.1u R211 0 VBAT PRE CHARGING ECCH0000182 R214 Q201 1K 12 3 65 4 R215 1.5K R217 10K UMX1NTN R216 7.5K INDLED_R R218 10K 10V Under ECCH0004904 ECCH0005704 10V Over NORMAL CHARGING C225 1u GATEDRV ISENSE VBAT VCHARGE R212 D200 0.2 CUS02 R213 330 Q200 4G S 5 D3 D4 3 D2 D5 6 2 1 D1 D6 7 8 C223 4.7u TPCF8102-TE85L-F Figure 3-6.
LGE Internal Use Only All right reserved. 3. Inc. Only for training and service purposes - 27 - CIRCUIT FOR BATTERY CHARGING Copyright © 2007 LG Electronics. TECHNICAL BRIEF PRE_CHARGE_R VCHARGE C224 0.1u R211 0 VBAT PRE CHARGING ECCH0000182 R214 Q201 1K 12 3 65 4 R215 1.5K R217 10K UMX1NTN R216 7.5K INDLED_R R218 10K 10V Under ECCH0004904 ECCH0005704 10V Over NORMAL CHARGING C225 1u GATEDRV ISENSE VBAT VCHARGE R212 D200 0.2 CUS02 R213 330 Q200 4G S 5 D3 D4 3 D2 D5 6 2 1 D1 D6 7 8 C223 4.7u TPCF8102-TE85L-F Figure 3-6.
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... power-on key NO And check the level change of PWRKEY YES Check the voltage of NO The LDO outputs at U101 Charge or Change Battery Check the contact of power key Or dome-switch Replace U101 YES VCORE=1.8V VMEM=2.8V VEXT=2.8V VMIC=2.5V VVCXO=2.75V VSIM=1.8V or... KEYON of U101 = HIGH YES NO Does it work properly? THE PHONE WILL POWER ON. 4. All right reserved. TROUBLE SHOOTING Checking Flow START NO Check Battery Voltage > 3.35V YES Push power-on procedure is Completed. Replace the main board LGE Internal Use Only - 54 - The problem may NO YES be elsewhere...
... power-on key NO And check the level change of PWRKEY YES Check the voltage of NO The LDO outputs at U101 Charge or Change Battery Check the contact of power key Or dome-switch Replace U101 YES VCORE=1.8V VMEM=2.8V VEXT=2.8V VMIC=2.5V VVCXO=2.75V VSIM=1.8V or... KEYON of U101 = HIGH YES NO Does it work properly? THE PHONE WILL POWER ON. 4. All right reserved. TROUBLE SHOOTING Checking Flow START NO Check Battery Voltage > 3.35V YES Push power-on procedure is Completed. Replace the main board LGE Internal Use Only - 54 - The problem may NO YES be elsewhere...
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YES Voltage across R213 is charged? YES NO Battery is NO about 10~100mV? YES Charging is properly operating Resolder the CN300 Pin 12,13 : VCHARGE Pin18 : GND The TA is out of D200 = 5.... Voltage at anode of order Change the TA Resolder the Q200, D200, R213 Replace the Q200 , D200 Replace the Q200 The battery may have problems. Change the battery. Copyright © 2007 LG Electronics. TROUBLE SHOOTING Checking Flow START NO I/O Connector(CN300) Is well-soldered ? All right reserved. Inc. YES NO 0.7V < voltage(R212...
YES Voltage across R213 is charged? YES NO Battery is NO about 10~100mV? YES Charging is properly operating Resolder the CN300 Pin 12,13 : VCHARGE Pin18 : GND The TA is out of D200 = 5.... Voltage at anode of order Change the TA Resolder the Q200, D200, R213 Replace the Q200 , D200 Replace the Q200 The battery may have problems. Change the battery. Copyright © 2007 LG Electronics. TROUBLE SHOOTING Checking Flow START NO I/O Connector(CN300) Is well-soldered ? All right reserved. Inc. YES NO 0.7V < voltage(R212...
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LGE Internal Use Only Battery MIC Slide PCB 1.77î LCD Charge Pump Analog Switch Analog Switch 18 Pin MMI CON. 0.3M Came ra Speaker & Recei ver Touch KEY TA Ear-MIC Data Cable Copyright © 2007 LG Electronics. All right reserved. 6. Inc. Only for training and service purposes - 87 - BLOCK DIAGRAM 6. BLOCK DIAGRAM Main PCB ABB+DBB (AD6720) MG280/KG280 Block Diagram Memory (256M/64M) RF PAM Transceiver Antenna SIM Vibrat or Key VGA Camera (Backend IC) MIDI IC (YMU792) Bluetooth & FM Radio VCTCXO (26MHz) FEM BT Antenna Charging Battery CON.
LGE Internal Use Only Battery MIC Slide PCB 1.77î LCD Charge Pump Analog Switch Analog Switch 18 Pin MMI CON. 0.3M Came ra Speaker & Recei ver Touch KEY TA Ear-MIC Data Cable Copyright © 2007 LG Electronics. All right reserved. 6. Inc. Only for training and service purposes - 87 - BLOCK DIAGRAM 6. BLOCK DIAGRAM Main PCB ABB+DBB (AD6720) MG280/KG280 Block Diagram Memory (256M/64M) RF PAM Transceiver Antenna SIM Vibrat or Key VGA Camera (Backend IC) MIDI IC (YMU792) Bluetooth & FM Radio VCTCXO (26MHz) FEM BT Antenna Charging Battery CON.
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LGE Internal Use Only - 90 - Inc. All right reserved. Copyright © 2007 LG Electronics. CIRCUIT DIAGRAM 1 2 3 4 5 6 7 8 9 10 1V8_VCAM 2V8_VCAM ACOUSTIC & MIDI FB200 VBAT 64 POLY MIDI IC(MP3 Ringtone) VBAT MEMORY (256 + 64PSRAM : SPANSION) SPK_N A ...0.1u R223 2.2K R232 NA R233 C229 NA 39p BOS-T1342SDN3-LH SUMY0010509 MIC200 1 2 C231 NA C232 NA VA202 EVLC18S02003 VA203 EVLC18S02003 BACK-UP BATTERY VBACKUP C241 1u Mount on the opposit BA201 NBL414R-F9J SBCL0001701 10V Under ECCH0004904 C225 1u R212 0.2 D200 CUS02 C223 4.7u C224 0.1u R211 0...
LGE Internal Use Only - 90 - Inc. All right reserved. Copyright © 2007 LG Electronics. CIRCUIT DIAGRAM 1 2 3 4 5 6 7 8 9 10 1V8_VCAM 2V8_VCAM ACOUSTIC & MIDI FB200 VBAT 64 POLY MIDI IC(MP3 Ringtone) VBAT MEMORY (256 + 64PSRAM : SPANSION) SPK_N A ...0.1u R223 2.2K R232 NA R233 C229 NA 39p BOS-T1342SDN3-LH SUMY0010509 MIC200 1 2 C231 NA C232 NA VA202 EVLC18S02003 VA203 EVLC18S02003 BACK-UP BATTERY VBACKUP C241 1u Mount on the opposit BA201 NBL414R-F9J SBCL0001701 10V Under ECCH0004904 C225 1u R212 0.2 D200 CUS02 C223 4.7u C224 0.1u R211 0...
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...menu and press 'select' key to non-engineering mode operation. LGE Internal Use Only Reset S/W Version CAMERA LCD Backlight Buzzer Vibrator ADC 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... key will switch back to progress the test. Only for switching the engineering mode on Bluetooth off All Calls Reset Copyright © 2007 LG Electronics. Engineering Mode Menu Tree Engineering Mode BB Test RF Test MF Mode Trace option Call Timer Fact. 9. Inc. Access Codes The ...
...menu and press 'select' key to non-engineering mode operation. LGE Internal Use Only Reset S/W Version CAMERA LCD Backlight Buzzer Vibrator ADC 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... key will switch back to progress the test. Only for switching the engineering mode on Bluetooth off All Calls Reset Copyright © 2007 LG Electronics. Engineering Mode Menu Tree Engineering Mode BB Test RF Test MF Mode Trace option Call Timer Fact. 9. Inc. Access Codes The ...
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... BAT_LEV_4V, BAT_LEV_3_LIMIT, BAT_LEV_2_LIMIT, BAT_LEV_1_LIMIT, BAT_IDLE_LI MIT, BAT_INCALL_LIMIT, SHUT_DOWN_VOLTAGE, BAT_RECHARGE_LMT 2) TEMP Cal : This displays the value of Battery Calibration. All right reserved. ENGINEERING MODE 9.1.6 ADC (Analog to set the Digital Audio Interface Mode for Speech Transcoder and ...the actual value can be written over, it returns to default value after switching off Copyright © 2007 LG Electronics. The following menus are displayed in order : TEMP_HIGH_LIMIT, TEMP_HIGH_RECHARGE_LMT, TEMP_LOW_RECHARGE_LMT, TEMP_LOW_LIMIT 9.1.8 Audio This is ...
... BAT_LEV_4V, BAT_LEV_3_LIMIT, BAT_LEV_2_LIMIT, BAT_LEV_1_LIMIT, BAT_IDLE_LI MIT, BAT_INCALL_LIMIT, SHUT_DOWN_VOLTAGE, BAT_RECHARGE_LMT 2) TEMP Cal : This displays the value of Battery Calibration. All right reserved. ENGINEERING MODE 9.1.6 ADC (Analog to set the Digital Audio Interface Mode for Speech Transcoder and ...the actual value can be written over, it returns to default value after switching off Copyright © 2007 LG Electronics. The following menus are displayed in order : TEMP_HIGH_LIMIT, TEMP_HIGH_RECHARGE_LMT, TEMP_LOW_RECHARGE_LMT, TEMP_LOW_LIMIT 9.1.8 Audio This is ...
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... 11-1. AUTO CALIBRATION 11.1 Overview Auto-cal (Auto Calibration) is the PC side Calibration tool that perform Tx, Rx and Battery Calibration with phone and measuring equipment then write it into calibration data block of flash memory in GSM phone. 11.2 Equipment List...and Tektronix PS2521G(Programmable Power supply). All right reserved. Equipment Setup Copyright © 2007 LG Electronics. AUTO CALIBRATION 11. Inc. GSM Test Set(8960) GPIB Cable Brand Agilent LG LG Agilent Agilent LG Mobile Switch Cable Power Supply GPIB Cable Figure 11-1. LGE Internal Use Only 11.
... 11-1. AUTO CALIBRATION 11.1 Overview Auto-cal (Auto Calibration) is the PC side Calibration tool that perform Tx, Rx and Battery Calibration with phone and measuring equipment then write it into calibration data block of flash memory in GSM phone. 11.2 Equipment List...and Tektronix PS2521G(Programmable Power supply). All right reserved. Equipment Setup Copyright © 2007 LG Electronics. AUTO CALIBRATION 11. Inc. GSM Test Set(8960) GPIB Cable Brand Agilent LG LG Agilent Agilent LG Mobile Switch Cable Power Supply GPIB Cable Figure 11-1. LGE Internal Use Only 11.
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...PS Description In ON state, phone is used TI chipset. In ON state, phone is used ADI chipset. All right reserved. 11. Copyright © 2007 LG Electronics. AUTO CALIBRATION JTAG2 JTAG1 USB MON PHONE UART TA ON OFF ADI-REMOTE POWER TI-REMOTE TA 1234 POWER ON OFF MON Status PS... data transfer state through the MON port Table 11-4 LED Description LGE Internal Use Only - 114 - It is awaked. Power is provided for phone from battery Power is provided for phone from Power supply Table 11-3 Jig DIP Switch LED Number LED 1 LED 2 LED 3 LED 4 Name Power TA UART MON ...
...PS Description In ON state, phone is used TI chipset. In ON state, phone is used ADI chipset. All right reserved. 11. Copyright © 2007 LG Electronics. AUTO CALIBRATION JTAG2 JTAG1 USB MON PHONE UART TA ON OFF ADI-REMOTE POWER TI-REMOTE TA 1234 POWER ON OFF MON Status PS... data transfer state through the MON port Table 11-4 LED Description LGE Internal Use Only - 114 - It is awaked. Power is provided for phone from battery Power is provided for phone from Power supply Table 11-3 Jig DIP Switch LED Number LED 1 LED 2 LED 3 LED 4 Name Power TA UART MON ...
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Inc. Set band EGSM and press Start button the result window will be reset. In this procedure you can get main Battery Config Table and temperature Config Table will show correction values per every power level and gain code and the same measure is performed ...per every frequency. 11.6 APC This procedure is for battery calibration. Copyright © 2007 LG Electronics. AUTO CALIBRATION 11.5 AGC This procedure is for training and service purposes In this procedure, We can get proper scale factor...
Inc. Set band EGSM and press Start button the result window will be reset. In this procedure you can get main Battery Config Table and temperature Config Table will show correction values per every power level and gain code and the same measure is performed ...per every frequency. 11.6 APC This procedure is for battery calibration. Copyright © 2007 LG Electronics. AUTO CALIBRATION 11.5 AGC This procedure is for training and service purposes In this procedure, We can get proper scale factor...