Service Manual
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... VCTCXO Block 83 4.4 Checking Front-End Module Block ........85 4.5 Checking GSM Block 88 4.6 Power on trouble 94 4.7 SIM detect trouble 99 4.8 Key sense trouble (KEYPAD 100 4.9 Keypad backlight trouble 102 4.10 Micro SD trouble 104 4.11 Audio trouble 105 4.12 Camera trouble 118 4.13 Main LCD trouble 121 4.14 Bluetooth trouble 124 4.15 Touch Screen trouble 126 5. DOWNLOAD 127 5.1 Introduction 127 5.2 Downloading Procedure 127 5.3 Troubleshooting Download Errors .......142 5.4 Caution 147 6. PCB LAYOUT 169 10. BGM Pin Map 163 9. EXPLODED VIEW & REPLACEMENT PART LIST...
... VCTCXO Block 83 4.4 Checking Front-End Module Block ........85 4.5 Checking GSM Block 88 4.6 Power on trouble 94 4.7 SIM detect trouble 99 4.8 Key sense trouble (KEYPAD 100 4.9 Keypad backlight trouble 102 4.10 Micro SD trouble 104 4.11 Audio trouble 105 4.12 Camera trouble 118 4.13 Main LCD trouble 121 4.14 Bluetooth trouble 124 4.15 Touch Screen trouble 126 5. DOWNLOAD 127 5.1 Introduction 127 5.2 Downloading Procedure 127 5.3 Troubleshooting Download Errors .......142 5.4 Caution 147 6. PCB LAYOUT 169 10. BGM Pin Map 163 9. EXPLODED VIEW & REPLACEMENT PART LIST...
Service Manual
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... an unauthorized part (for example, persons other than your company's employees, agents, subcontractors, or person working on the phones must be responsible for your telecommunications services. Only for the security of facilities accessed through or connected to maintain telephone service. LGE Internal Use Only The user may temporarily disconnect service as long as specifically noted in Service A local telephone company may make any charges that...
... an unauthorized part (for example, persons other than your company's employees, agents, subcontractors, or person working on the phones must be responsible for your telecommunications services. Only for the security of facilities accessed through or connected to maintain telephone service. LGE Internal Use Only The user may temporarily disconnect service as long as specifically noted in Service A local telephone company may make any charges that...
Service Manual
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... ESD handling: sign. • Service personnel should ground themselves by local regulatory agencies. G. INTRODUCTION E. In accordance with anti-static mat which is also grounded. • Use a suitable, grounded soldering iron. • Keep sensitive parts in this manual are used. • When returning system boards or parts like EEPROM to the end user. Pictures The pictures in these protective packages...
... ESD handling: sign. • Service personnel should ground themselves by local regulatory agencies. G. INTRODUCTION E. In accordance with anti-static mat which is also grounded. • Use a suitable, grounded soldering iron. • Keep sensitive parts in this manual are used. • When returning system boards or parts like EEPROM to the end user. Pictures The pictures in these protective packages...
Service Manual
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2. Inc. LGE Internal Use Only Only for Buzzer Function) Music Player Video Player Camcorder Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash (External Memory) Feature Alphanumeric Key : 12 Function Key : 14 Side Key : 4 Total No of Keys :30 Main : Internal Fixed Type 18 Pin 18pin, 4 Pole, Stereo Yes NAND Flash : 1Gbit SDRAM : 512Mbit FR, EFR, HR,AMR Built in Data & Fax support Built in Vibrator V1.2, A2DP, SW Decoded 40Poly...
2. Inc. LGE Internal Use Only Only for Buzzer Function) Music Player Video Player Camcorder Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash (External Memory) Feature Alphanumeric Key : 12 Function Key : 14 Side Key : 4 Total No of Keys :30 Main : Internal Fixed Type 18 Pin 18pin, 4 Pole, Stereo Yes NAND Flash : 1Gbit SDRAM : 512Mbit FR, EFR, HR,AMR Built in Data & Fax support Built in Vibrator V1.2, A2DP, SW Decoded 40Poly...
Service Manual
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... Under conditions, at least 200 hours: Brand new and full 800mAh battery Full charge, no receive/send and keep GSM in idle mode. Only for training and service purposes - 13 - Test distance set as 50 cm Fast Charge : < 600 mA Slow Charge: < 60 mA Antenna Bar Number Power 4 -90 dBm ~ -86 dBm 3 -95 dBm ~ -91 dBm 2 -100 dBm ~ -96 dBm 1 -105 dBm ~ -101 dBm...
... Under conditions, at least 200 hours: Brand new and full 800mAh battery Full charge, no receive/send and keep GSM in idle mode. Only for training and service purposes - 13 - Test distance set as 50 cm Fast Charge : < 600 mA Slow Charge: < 60 mA Antenna Bar Number Power 4 -90 dBm ~ -86 dBm 3 -95 dBm ~ -91 dBm 2 -100 dBm ~ -96 dBm 1 -105 dBm ~ -101 dBm...
Service Manual
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... Corr ection F ref PLL # 2 VCO Phone VCTCXO PM6635-3P Input Power Management Voltage R egulat ors General H ous ek eeping User Interfaces IC Interfaces RTR6275 _ TCXO 4 MSM_TCXO FM Radio 5 Module Bluetooth M odule [Fig 3.1] Block diagram of RF part A generic, high-level functional block diagram of KE990/KE990c is shown in Figure 3-1. The antenna connects with receive and transmit paths through a FEM(Front...
... Corr ection F ref PLL # 2 VCO Phone VCTCXO PM6635-3P Input Power Management Voltage R egulat ors General H ous ek eeping User Interfaces IC Interfaces RTR6275 _ TCXO 4 MSM_TCXO FM Radio 5 Module Bluetooth M odule [Fig 3.1] Block diagram of RF part A generic, high-level functional block diagram of KE990/KE990c is shown in Figure 3-1. The antenna connects with receive and transmit paths through a FEM(Front...
Service Manual
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... individually enabled/disabled for two external pass transistors and one external battery MOSFET - TECHNICAL BRIEF 3.4.3 PMIC Functional Block Diagram (U501 : PM6635-3P) ■ Input power management - VDD collapse protection - Battery voltage detectors with programmable output voltages, implemented using three different current ratings: 300 mA (two), 150 mA (six), and 50 mA (three). Supports coin cell backup battery (including charging) - Control drivers for power savings - Copyright...
... individually enabled/disabled for two external pass transistors and one external battery MOSFET - TECHNICAL BRIEF 3.4.3 PMIC Functional Block Diagram (U501 : PM6635-3P) ■ Input power management - VDD collapse protection - Battery voltage detectors with programmable output voltages, implemented using three different current ratings: 300 mA (two), 150 mA (six), and 50 mA (three). Supports coin cell backup battery (including charging) - Control drivers for power savings - Copyright...
Service Manual
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... reported through real-time and interrupt status signals - USB-OTG transceiver for efficient initialization, status, and control - RUIM level translators enable ESM device interfacing with external modules ■ Twelve multi-purpose pins that can be configured as keypad backlight, LCD backlight, camera flash, and general-purpose drivers - TECHNICAL BRIEF ■ Integrated handset-level housekeeping functions reduces external parts count, size, cost...
... reported through real-time and interrupt status signals - USB-OTG transceiver for efficient initialization, status, and control - RUIM level translators enable ESM device interfacing with external modules ■ Twelve multi-purpose pins that can be configured as keypad backlight, LCD backlight, camera flash, and general-purpose drivers - TECHNICAL BRIEF ■ Integrated handset-level housekeeping functions reduces external parts count, size, cost...
Service Manual
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...; Direct interface to digital camera module with video front-end (VFE) image processing ■ True 3D graphics for advanced wireless gaming ■ SecureMSM v2.0 includes support for SIM-lock and IMEI integrity, and Qfuse ■ Audio on par with portable music players ■ Vocoder support (AMR, FR, EFR, HR) ■ Advanced 14 x 14 mm, 0.5 mm pitch, 409-pin lead-free CSP technology ■...
...; Direct interface to digital camera module with video front-end (VFE) image processing ■ True 3D graphics for advanced wireless gaming ■ SecureMSM v2.0 includes support for SIM-lock and IMEI integrity, and Qfuse ■ Audio on par with portable music players ■ Vocoder support (AMR, FR, EFR, HR) ■ Advanced 14 x 14 mm, 0.5 mm pitch, 409-pin lead-free CSP technology ■...
Service Manual
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... devices. 3.6.2 GSM features The following GSM modes and data rates are supported. 3.6.3 GPRS features ■ Packet switched data (GPRS) ❏ DTM (Simple Class A) operation ❏ Multi-slot class 12 data services ❏ CS schemes: CS1, CS2, CS3, and CS4 ❏ GEA1, GEA2, and GEA3 ciphering ■ Maximum of the external peripherals such as the keypad, LCD, SDRAM, and NAND-Flash devices...
... devices. 3.6.2 GSM features The following GSM modes and data rates are supported. 3.6.3 GPRS features ■ Packet switched data (GPRS) ❏ DTM (Simple Class A) operation ❏ Multi-slot class 12 data services ❏ CS schemes: CS1, CS2, CS3, and CS4 ❏ GEA1, GEA2, and GEA3 ciphering ■ Maximum of the external peripherals such as the keypad, LCD, SDRAM, and NAND-Flash devices...
Service Manual
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.... Voice mail + voice memo ■ Acoustic echo cancellation ■ Audio AGC ■ Audio Codecs: AMR-NB, AAC, AAC Plus, Enhanced AAC Plus, Windows Audio v9, Real Audio 8 (G2) ■ Internal vocoder supporting AMR, FR, EFR, and HR 3.6.6 ESM6270 microprocessor subsystem ■ Industry standard ARM926EJ-S embedded microprocessor subsystem ❏ 16 kB instruction and 16 kB data cache ❏ Instruction set...
.... Voice mail + voice memo ■ Acoustic echo cancellation ■ Audio AGC ■ Audio Codecs: AMR-NB, AAC, AAC Plus, Enhanced AAC Plus, Windows Audio v9, Real Audio 8 (G2) ■ Internal vocoder supporting AMR, FR, EFR, and HR 3.6.6 ESM6270 microprocessor subsystem ■ Industry standard ARM926EJ-S embedded microprocessor subsystem ❏ 16 kB instruction and 16 kB data cache ❏ Instruction set...
Service Manual
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... The mode pins to support the desired functionality. 3.6.12 ARM Microprocessor subsystem The ESM6270 device uses an embedded ARM926EJ-S microprocessor. Copyright © 2008 LG Electronics. The microphone (Tx) audio path consists of a two-stage amplifier with the gain of the ANSI/IEEE 1149.1A-1993 feature list. The ESM6270 device meets the intent of the second stage set interally...
... The mode pins to support the desired functionality. 3.6.12 ARM Microprocessor subsystem The ESM6270 device uses an embedded ARM926EJ-S microprocessor. Copyright © 2008 LG Electronics. The microphone (Tx) audio path consists of a two-stage amplifier with the gain of the ANSI/IEEE 1149.1A-1993 feature list. The ESM6270 device meets the intent of the second stage set interally...
Service Manual
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... are : PM6635 : Phone power supply AAT3169 : LCD Backlight/Flash charge pump 3.7.2 PM6635 The PM6635 device (Figure 3.7) integrates all the most common sources - LGE Internal Use Only - 38 - PM6635 cover the power of ESM6270, ESM memory, RF block, Bluetooth, SIM and TCXO. TECHNICAL BRIEF 3.7 Power Block 3.7.1 General ESM6270, included RF, is fully covered by an Interrupt Manager for training and service purposes Major power components are...
... are : PM6635 : Phone power supply AAT3169 : LCD Backlight/Flash charge pump 3.7.2 PM6635 The PM6635 device (Figure 3.7) integrates all the most common sources - LGE Internal Use Only - 38 - PM6635 cover the power of ESM6270, ESM memory, RF block, Bluetooth, SIM and TCXO. TECHNICAL BRIEF 3.7 Power Block 3.7.1 General ESM6270, included RF, is fully covered by an Interrupt Manager for training and service purposes Major power components are...
Service Manual
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... H.264 with AMR voice or AAC/Enhanced AACPlus audio. • 3GPP-compliant videophone, with Internal SDRAM, no need for ring tones, melodies). LGE Internal Use Only Camera controls for flash, optical zoom,focus, shutter and iris. • Camcorder operation as a DivX recorder /player at QCIF 15 fps (full-duplex). • MIDI player (for external memory. • Package: 180-pin TFBGA (8 x 8 mm) • 90nm...
... H.264 with AMR voice or AAC/Enhanced AACPlus audio. • 3GPP-compliant videophone, with Internal SDRAM, no need for ring tones, melodies). LGE Internal Use Only Camera controls for flash, optical zoom,focus, shutter and iris. • Camcorder operation as a DivX recorder /player at QCIF 15 fps (full-duplex). • MIDI player (for external memory. • Package: 180-pin TFBGA (8 x 8 mm) • 90nm...
Service Manual
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... LGE Internal Use Only En d - 100 - Only for training and service purposes TROUBLE SHOOTING 4.8 Key sense trouble (KEYPAD) Key Sense sequence of KE990 is : Default condition ROW(0-2) is 0V? Yes Chang e th e Main bo ard NO Chang e th e DOME SHEET Side Ke y Work w ell? All right reserved. Copyright © 2008 LG Electronics. YES NO Check VA700~ VA707, R707~R710 Work w ell? NO Chang e SIDE KEY NO YES Work w ell...
... LGE Internal Use Only En d - 100 - Only for training and service purposes TROUBLE SHOOTING 4.8 Key sense trouble (KEYPAD) Key Sense sequence of KE990 is : Default condition ROW(0-2) is 0V? Yes Chang e th e Main bo ard NO Chang e th e DOME SHEET Side Ke y Work w ell? All right reserved. Copyright © 2008 LG Electronics. YES NO Check VA700~ VA707, R707~R710 Work w ell? NO Chang e SIDE KEY NO YES Work w ell...
Service Manual
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LGE Internal Use Only TROUBLE SHOOTING 4.11 Audio trouble 4.11.1 Receiver path Voice Receiver path as below: ESM6270 Ear1ON/Ear1OP → CN701(Touch FPCB connector) → Receiver Start Conne ct th e phone to n etw ork Equipm ent a nd setup c all Setup 1KHz tone out Hear the tone to the receiv er? NO Change t he Receiv er YES END Check c onnector pin or ch ang e th e Tou ch FPCB Can you hea r th e ton e? Inc. Only for training and service purposes - 105 - YES END Copyright © 2008 LG Electronics. 4. All right reserved.
LGE Internal Use Only TROUBLE SHOOTING 4.11 Audio trouble 4.11.1 Receiver path Voice Receiver path as below: ESM6270 Ear1ON/Ear1OP → CN701(Touch FPCB connector) → Receiver Start Conne ct th e phone to n etw ork Equipm ent a nd setup c all Setup 1KHz tone out Hear the tone to the receiv er? NO Change t he Receiv er YES END Check c onnector pin or ch ang e th e Tou ch FPCB Can you hea r th e ton e? Inc. Only for training and service purposes - 105 - YES END Copyright © 2008 LG Electronics. 4. All right reserved.
Service Manual
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... is installed. Click on Top Check if LGMDP always appears at the same time. 5.2 Downloading Procedure • Connect the phone to download new image file. To enable this simply check the box. ➢ Always on the File menu and select Preferences. ➢ Play a success sound It will automatically select Select Port button to your desktop PC using the USB cable and run Select Port When LGMDP starts When LGMDP starts...
... is installed. Click on Top Check if LGMDP always appears at the same time. 5.2 Downloading Procedure • Connect the phone to download new image file. To enable this simply check the box. ➢ Always on the File menu and select Preferences. ➢ Play a success sound It will automatically select Select Port button to your desktop PC using the USB cable and run Select Port When LGMDP starts When LGMDP starts...
Service Manual
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... file system physically are erased. Copyright © 2008 LG Electronics. The user contents in the dialog. 7) Start: Starting downloading the selected individual image. All right reserved. User data stated above are maintained if this option is selected. 5) Additional Options: Display Information is checked. Keep All Contents Maintain user data including WAP, AD, DRM, E-mail, Play lists, and images when downloading a new S/W images. Only calibration data is kept when NV backup/restore...
... file system physically are erased. Copyright © 2008 LG Electronics. The user contents in the dialog. 7) Start: Starting downloading the selected individual image. All right reserved. User data stated above are maintained if this option is selected. 5) Additional Options: Display Information is checked. Keep All Contents Maintain user data including WAP, AD, DRM, E-mail, Play lists, and images when downloading a new S/W images. Only calibration data is kept when NV backup/restore...
Service Manual
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... in LOGIC MODE (means calibration alone) 2. All right reserved. Inc. Calibration & RF Auto Test Program (Hot Kimchi) 10.1 Usage of Hot-Kimchi 10.1.1 RF Calibration Calibration Only Model Name KE990/KE990c * Procedure 1. Choose "1" in list box. 3. Only for training and service purposes - 173 - Copyright © 2008 LG Electronics. Click SETTING in menu, and logic operation in sub-menu. Click Start button to calibrate...
... in LOGIC MODE (means calibration alone) 2. All right reserved. Inc. Calibration & RF Auto Test Program (Hot Kimchi) 10.1 Usage of Hot-Kimchi 10.1.1 RF Calibration Calibration Only Model Name KE990/KE990c * Procedure 1. Choose "1" in list box. 3. Only for training and service purposes - 173 - Copyright © 2008 LG Electronics. Click SETTING in menu, and logic operation in sub-menu. Click Start button to calibrate...
Service Manual
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... EXPLODED VIEW & REPLACEMENT PART LIST Location Level No. 6 U902 IC Description Part Number Spec EUSY0250501 SC70 ,5 PIN,R/TP ,Comparator, pin compatible to EUSY0077701 Color 6 U903 IC EUSY0129503 2x2 mm MLPD ,3 PIN,R/TP ,Hall Effect Switch, Pb Free 6 U904 IC EUSY0129503 2x2 mm MLPD ,3 PIN,R/TP ,Hall Effect Switch, Pb Free 6 ZD900 DIODE,TVS EDTY0008610 SOD-523 ,5 V,250 W,R/TP ,PB-FREE 5 SAJD00 PCB ASSY,SUB,SMT TOP SAJD0025601 6 BAT900 BATTERY,CELL...
... EXPLODED VIEW & REPLACEMENT PART LIST Location Level No. 6 U902 IC Description Part Number Spec EUSY0250501 SC70 ,5 PIN,R/TP ,Comparator, pin compatible to EUSY0077701 Color 6 U903 IC EUSY0129503 2x2 mm MLPD ,3 PIN,R/TP ,Hall Effect Switch, Pb Free 6 U904 IC EUSY0129503 2x2 mm MLPD ,3 PIN,R/TP ,Hall Effect Switch, Pb Free 6 ZD900 DIODE,TVS EDTY0008610 SOD-523 ,5 V,250 W,R/TP ,PB-FREE 5 SAJD00 PCB ASSY,SUB,SMT TOP SAJD0025601 6 BAT900 BATTERY,CELL...
