LG GT360 Service Manual

Service Manual Internal Use Only Service Manual GT360 Model : GT360 Date: April, 2009 / Issue 1.0 REVISED HISTORY Editor J.P.Kim Date Jul. 18. 2008 Issue 0.1 Contents of Changes S/W Version * The information in this manual is subject to change without notice and should not be construed as a commitment by LGE Inc. Furthermore, LGE Inc. reserves the right, without notice, to make changes to equipment design as advances in engineering and manufacturing methods warrant. * This manual provides the information necessary to install, program, operate and maintain the GT360 Series. Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes -3- LGE Internal Use Only LGE Internal Use Only -4- Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes Table Of Contents 1. INTRODUCTION ...............................7 1.1 Purpose .................................................. 7 1.2 Regulatory Information............................ 7 1.3 ABBREVIATION ..................................... 9 5. Trouble shooting............................66 5.1 Trouble shooting test setup....................66 5.2 Power on Trouble...................................67 5.3 Charging trouble ....................................70 5.4 LCD display trouble................................72 5.5 Camera Trouble .....................................74 5.6 Receiver & Speaker trouble ...................76 5.7 Microphone trouble ................................78 5.8 Ear-MIc Jack Detection trouble..............79 5.9 Vibrator trouble ......................................80 5.10 Keypad back light trouble.....................82 5.11 SIM & USD trouble...............................84 5.12 Touch trouble .......................................88 5.13 Qwerty Key trouble ..............................90 5.14 Trouble Shooting of Receiver Part.......92 5.15 Trouble Shooting of Transmitter Part...96 2. PERFORMANCE .............................11 2.1 H/W Features.........................................11 2.2 Technical specification...........................12 3. TECHNICAL BRIEF ........................19 3.1 GT360 series Component Block diagram... .....................................19 3.2 Baseband Processor (BBP) Introduction ............................................20 3.3 Power management IC ..........................28 3.4 Power ON/OFF ......................................32 3.5 SIM interface..........................................33 3.6 Micro SD external memory Interface .....34 3.7 Memory ..................................................35 3.8 LCD Display ...........................................36 3.9 Keypad Switching & Scanning ...............39 3.10 Touch KEY...........................................41 3.11 Keypad back-light illumination .............43 3.12 LCD back light illumination...................44 3.13 ISP(Image Signal Processor)...............45 3.14 JTAG & ETM interface connector ........46 3.15 Audiot ...................................................47 3.16 Charging circuit ....................................49 3.17 BLUETOOTH .......................................50 3.18 FM Radio .............................................52 3.19 18pin Multi Media Interface connector .............................................53 3.20 General Description .............................55 3.21 Receiver part........................................57 3.22 Transmitter part....................................58 3.23 RF synthesizer .....................................59 3.24 DCXO...................................................60 3.25 Front End Module control.....................60 3.26 Power Amplifier Module .......................61 6. Download & S/W upgrade...............103 6.1 S/W download setup ............................103 6.2 Download program user guide.............104 6.3 Multi-Download Program Setting .........105 7. CIRCUIT DIAGRAM ......................107 8. BGM PIN MAP...............................117 9. PCB LAYOUT ................................121 10. RF Calibration ............................127 10.1 Test Equipment Setup .......................127 10.2 Calibration Step .................................127 11. Stand-alone Test ........................133 11.1 Test Program Setting .........................133 11.2 Tx Test ...............................................135 11.3 Rx Test...............................................136 12. ENGINEERING MODE ................137 13. EXPLODED VIEW & REPLACEMENT PART LIST ......139 13.1 Exploded View ...................................139 13.2 Replacement Parts ............................141 4. PCB layout......................................62 4.1 Main PCB component placement ..........62 Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes -5- LGE Internal Use Only LGE Internal Use Only -6- Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 1. INTRODUCTION 1. INTRODUCTION 1.1 Purpose This manual provides the information necessary to repair, calibration, description and download the features of the GT360 Series. 1.2 Regulatory Information A. Security Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for example, persons other than your company’s employees, agents, subcontractors, or person working on your company’s behalf) can result in substantial additional charges you’re your telecommunications services. System users are responsible for the security of own system. There are may be risks of toll fraud associated with your telecommunications system. System users are responsible for programming and configuring the equipment to prevent unauthorized use. LGE does not warrant that this product is immune from the above case but will prevent unauthorized use of common-carrier telecommunication service of facilities accessed through or connected to it. LGE will not be responsible for any charges that result from such unauthorized use. B. Incidence of Harm If a telephone company determines that the equipment provided to customer is faulty and possibly causing harm or interruption in service to the telephone network, it should disconnect telephone service until repair can be done. A telephone company may temporarily disconnect service as long as repair is not done. C. Changes in Service A local telephone company may make changes in its communications facilities or procedure. If these changes could reasonably be expected to affect the use of the GT360 Series or compatibility with the network, the telephone company is required to give advanced written notice to the user, allowing the user to take appropriate steps to maintain telephone service. D. Maintenance Limitations Maintenance limitations on the GT360 Series must be performed only at the LGE or its authorized agents. The user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes -7- LGE Internal Use Only 1. INTRODUCTION E. Notice of Radiated Emissions The GT360 Series complies with rules regarding radiation and radio frequency emission as defined by local regulatory agencies. In accordance with these agencies, you may be required to provide information such as the following to the end user. F. Pictures The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly different. G. Interference and Attenuation An GT360 Series may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from unsuppressed engines or electric motors may cause problems. H. Electrostatic Sensitive Devices ATTENTION Boards, which contains Electrostatic Sensitive Device(ESD), are indicated by the sign. Following information is ESD handling: Service personnel should ground themselves by using a wrist strap when exchange system boards. When repairs are made to a system board, they should spread the floor with anti-static mat which is also grounded. Use a suitable, grounded soldering iron. Keep sensitive parts in these protective packages until these are used. When returning system boards or parts such as EEPROM to the factory, use the protective package as described. LGE Internal Use Only -8- Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 1. INTRODUCTION 1.3 ABBREVIATION For the purposes of this manual, following abbreviations apply: APC BB BER CC-CV CLA DAC DCS dBm DSP EEPROM EGPRS EL ESD FPCB GMSK GPIB GPRS GSM IPUI IF LCD LDO LED Automatic Power Control Baseband Bit Error Ratio Constant Current - Constant Voltage Cigar Lighter Adapter Digital to Analog Converter Digital Communication System dB relative to 1 milli-watt Digital Signal Processing Electrical Erasable Programmable Read-Only Memory Enhanced General Packet Radio Service Electroluminescence Electrostatic Discharge Flexible Printed Circuit Board Gaussian Minimum Shift Keying General Purpose Interface Bus General Packet Radio Service Global System for Mobile Communications International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes -9- LGE Internal Use Only 1. INTRODUCTION LGE OPLL PAM PCB PGA PLL PSTN RF RLR RMS RTC SAW SIM SLR SRAM STMR TA TDD TDMA UART VCO VCTCXO WAP 8PSK LG Electronics Offset Phase Locked Loop Power Amplifier Module Printed Circuit Board Programmable Gain Amplifier Phase Locked Loop Public 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 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 8 Phase Shift Keying LGE Internal Use Only - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 2. GENERAL PERFORMANCE 2. GENERAL PERFORMANCE 2.1 H/W Feature Item Standard Battery AVG TCVR Current Standby Current Talk time Standby time Charging time RX Sensitivity TX output power Li-Polymer, 800mAh 250mA typ 1.85 mA typ 5.6 hours (GSM850/EGSM TX Level 10) Over 430 hours (Paging Period:9, RSSI: -85dBm) Under 3 hours GSM850/EGSM: -105dBm↓, DCS/PCS: -105dBm↓ GSM850/EGSM : 32.5dBm (@PL 5) DCS/PCS: 30/29.5dBm (@PL 0) Class 12 3V Small Main 240x320 262K TFT 2.4” Dial keys are implemented by touchpad. Navi, Send, Call End, Back, Volume Up, Volume Down, Camera, Touch hot Key and CLEAR Number key, Alphabet, OK, space bar, Function key are implemented by Qwertykey Built in antenna - 18pin multi port Headset jack (Call/Music) Yes HR/EFR/FR/AMR Yes Yes No Yes Yes Yes Yes Bluetooth hands-free kit, Data Kit @PL5 @PP9 Feature Comment GPRS compatibility SIM card type Display Status Indicator ANT EAR Phone Jack PC Synchronization Speech coding Data and Fax Vibrator Buzzer Voice Recoding C-Mic Receiver Travel Adapter Options Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 11 - LGE Internal Use Only 2. GENERAL PERFORMANCE 2.2 Technical specification Item Description GSM900 TX: 890 + 0.2 x n MHz RX: 935 + 0.2 x n MHz ( n = 1 ~ 124 ) EGSM TX: 890 + 0.2 x (n-1024) MHz 1 Frequency Band RX: 935 + 0.2 x (n-1024) MHz ( n = 975 ~ 1023 ) DCS1800 TX: 1710 + ( n-511 ) x 0.2 MHz (n = 512 ~ 885) RX: TX + 95 MHz PCS1900 TX: 1850.2 + ( n-512 ) x 0.2 MHz (n = 512 ~ 810) RX: TX + 80MHz 2 3 Phase Error Frequency Error RMS < 5 degrees Peak < 20 degrees < 0.1ppm GSM900/EGSM Level 5 6 7 8 9 10 11 12 4 Power Level Level 0 1 2 3 4 5 6 7 Power 33 dBm 31 dBm 29 dBm 27 dBm 25 dBm 23 dBm 21 dBm 19 dBm Power 30 dBm 28 dBm 26 dBm 24 dBm 22 dBm 20 dBm 18 dBm 16 dBm Toler. 2dB 3dB 3dB 3dB 3dB 3dB 3dB 3dB Toler. 2dB 3dB 3dB 3dB 3dB 3dB 3dB 3dB Level 8 9 10 11 12 13 14 15 Power 14 dBm 12 dBm 10 dBm 8 dBm 6 dBm 4 dBm 2 dBm 0 dBm Toler. 3dB 4dB 4dB 4dB 4dB 4dB 5dB 5dB Level 13 14 15 16 17 18 19 Power 17 dBm 15 dBm 13 dBm 11 dBm 9 dBm 7 dBm 5 dBm Toler. 3dB 3dB 3dB 5dB 5dB 5dB 5dB Specification DCS1800/PCS1900 LGE Internal Use Only - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 2. GENERAL PERFORMANCE Item Description GSM900/EGSM Specification Offset from Carrier (kHz). 100 200 250 400 600 ~ 1,200 1,200 ~ 1,800 1,800 ~ 3,000 3,000 ~ 6,000 5 Output RF Spectrum (due to modulation) 6,000 DCS1800/PCS1900 Offset from Carrier (kHz). 100 200 250 400 600 ~ 1,200 1,200 ~ 1,800 1,800 ~ 3,000 3,000 ~ 6,000 6,000 GSM900/EGSM Offset from Carrier (kHz) Output RF Spectrum 6 (due to switching transient) 400 600 1,200 1,800 Max. dBc +0.5 -30 -33 -60 -60 -60 -63 -65 -71 Max. dBc +0.5 -30 -33 -60 -60 -60 -65 -65 -73 Max. (dBm) -19 -21 -21 -24 Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 13 - LGE Internal Use Only 2. GENERAL PERFORMANCE Item Description Specification DCS1800/PCS1900 Offset from Carrier (kHz). Max. (dBm) -22 -24 -24 -27 6 Output RF Spectrum (due to switching transient) 400 600 1,200 1,800 7 Spurious Emissions Conduction, Emission Status GSM850/EGSM BER (Class II) < 2.439% @-102dBm DCS1800/PCS1900 BER (Class II) < 2.439% @-100dBm 8 Bit Error Ratio 9 10 Rx Level Report accuracy SLR 8 3 dB Frequency (Hz) 100 200 300 Max.(dB) -12 0 0 0 4 4 4 0 Min.(dB) -12 -6 -6 -6 -9 - 11 Sending Response 1,000 2,000 3,000 3,400 4,000 12 RLR 2 3 dB Frequency (Hz) 100 200 300 500 Max.(dB) -12 0 2 * 0 2 2 2 Min.(dB) -7 -5 -5 -5 -10 13 Receiving Response 1,000 3,000 3,400 4,000 * Mean that Adopt a straight line in between 300 Hz and 1,000 Hz to be Max. level in the range. LGE Internal Use Only - 14 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 2. GENERAL PERFORMANCE Item 14 15 STMR Description 13 5 dB > 6 dB Specification Stability Margin dB to ARL (dB) -35 -30 -20 16 Distortion -10 0 7 10 17 18 19 20 21 Side Tone Distortion System frequency (26 MHz) tolerance 32.768KHz tolerance Power consumption Talk Time Three stage distortion < 10% 2.5ppm 30ppm Standby - Normal 2 mA(@PP9) Level Ratio (dB) 17.5 22.5 30.7 33.3 33.7 31.7 25.5 22 Standby Time 23 Ringer Volume 24 Charge Current EGSM/Lvl 7 (Battery Capacity 800mA):180 min EGSM/Lvl12(Battery Capacity 800 mA):320min Under conditions, at least 300 hours: 1. Brand new and full 800mAh battery 2. Full charge, no receive/send and keep GSM in idle mode. 3. Broadcast set off. 4. Signal strength display set at 3 level above. 5. Backlight of phone set off. At least 65 dB under below conditions: 1. Ringer set as ringer. 2. Test distance set as 50 cm Fast Charge : < 450 mA Slow Charge: < 200 mA Antenna Bar Number 7 7→5 5→4 4→2 2→1 1→0 Off Power >-92 dBm ~ -97dBm ~ -93dBm -100dBm ~ -98dBm -103dBm ~ -101dBm -105dBm ~ -104dBm < -106 dBm No Service 25 Antenna Display Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 15 - LGE Internal Use Only 2. GENERAL PERFORMANCE Item Description Specification Battery Bar Number 3 Voltage( 0.05V) 3.74V ~ 4.2V 3.64V~3.73V 3.45V ~ 3.63V 3.35V ~ 3.44V 26 Battery Indicator 2 1 0 3.57V ↓ 3.45V ↓ 3.35 27 28 Low Voltage Warning Forced shut down Voltage 0.05V (Call) 0.05V (Standby) 0.05 V 29 Battery Type Li-ion Battery or Li-Polymer Battery Standard Voltage = 3.7 V Battery full charge voltage = 4.2 V Capacity: 800mAh Switching-mode charger Input: 100 ~ 240 V, 50/60Hz Out put: 5.6V, 0.4A 31 Travel Charger LGE Internal Use Only - 16 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 2. GENERAL PERFORMANCE * EDGE RF Specification (Option: is not serviced for “EDGE mode”) Item 1 2 3 4 Description RMS EVM Peak EVM 95th Percentile EVM Origin Offset Suppression 9% 30% 15% 30dB Power 27dBm 27dBm 27dBm 27dBm 25dBm 23dBm 21dBm 19dBm Power 26/25dBm 26/25dBm 26/25dBm 24 dBm 22 dBm 20 dBm 18 dBm 16 dBm Toler. 3dB 3dB 3dB 3dB 3dB 3dB 3dB 3dB Toler. 3dB 3dB 3dB 3dB 3dB 3dB 3dB 3dB Level 8 9 10 11 12 13 14 15 Power 14 dBm 12 dBm 10 dBm 8 dBm 6 dBm 4 dBm 2 dBm 0 dBm Max. dBc +0.5 -30 -33 -54 -60 -60 -63 -65 -71 Toler. 3dB 4dB 4dB 4dB 4dB 4dB 5dB 5dB Level 13 14 15 16 17 18 19 Power 17dBm 15dBm 13dBm 11dBm 9dBm 7dBm 5dBm Toler. 3dB 3dB 3dB 5dB 5dB 5dB 5dB Specification ≥ GSM900/EGSM Level 5 6 7 8 9 10 11 5 Power Level 12 Level 0 1 2 3 4 5 6 7 6 Output RF Spectrum (due to modulation) DCS1800, PCS1900 GSM900/EGSM Offset from carrier(kHz) 100 200 250 400 600 ~