LG Electronics KS360 manuals
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When we buy new device such as LG Electronics KS360 we often through away most of the documentation but the warranty.
Very often issues with LG Electronics KS360 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Cell Phone LG Electronics KS360 is responsible for and what options to choose for expected result.
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LG Electronics KS360 Service Manual
162 pages 9.66 Mb
2 REVISED HISTORY4 Table Of Contents1. INTRODUCTION ...............................7 2. PERFORMANCE.............................11 3. TECHNICAL BRIEF ........................19 4. PCB layout......................................62 5. Trouble shooting............................66 6. Download & S/W upgrade...............103 11. Stand-alone Test........................133 12. ENGINEERING MODE................137 13. EXPLODED VIEW & REPLACEMENT PART LIST......139 1.1 Purpose 1.2 Regulatory InformationA. Security B. Incidence of Harm C. Changes in Service D. Maintenance Limitations 6 1. INTRODUCTION10 2. GENERAL PERFORMANCE11 2.2 Technical specification3.2 Baseband Processor (BBP) Introduction+ Power SRAM 3.2.1 General DescriptionFigure 2. Top level block diagram of the S-GOLDRadio (PMB8888) 19 S-GOLDradioBaseband R - 20 3.2.2 Block Description21 3.2.3 External Devices connected to memory interface3.2.4 RF Interface 22 3.2.5 USART Interface3.2.6 ADC channel 23 3.2.7 GPIO map27 3.3 Power management IC31 3.4 Power ON/OFF3.5 SIM interface 32 SIM CONNECTOR65 5. Trouble shooting5.1 Trouble shooting test setup 66 5.2 Power on Trouble-Battery Voltage( Need to over 3.35V) -Power-On Key detection (PWRON signal)ENDVA100 EVL14S02200 VBAT 150R112 KB100 END_KEY Remote Power On END 69 5.3 Charging troubleCHARGING IC OVP 4.2V~3.75V 3.75V~3.64V 3.64V~3.45V 3.45V~3.35V 70 - 71 -- 72 - 71 5.4 LCD display trouble-LCD assembly status ( LCD FPCB, Connector on FPCB) -EMI filter soldering -Connector combination SocketCheck the connection LCD FPCB connector Check signal flow via EMI filter The LCD backlight enable signal (SUB PCB) MAIN To FPCB Connector72 - 73 -Signal is normal on 2.62V Signal FL400, FL401, FL402,FL403,FL404 - 74 - 73 5.5 Camera TroubleCheck the connector combination (ENBY0020401,24PIN,0.9T,SOCKET,AXK7L24227G) -Connectors combination -FPCB status CAMERA POWER2EN1 EN2 3 5 GNDNC1 4NC2 6 PGND 9 1VIN VOUT1 8 7 VOUT2 VBAT RT9011-MGPQWU500 EUSY0319001 C551 2.2u C552 2.2u 2V8_VCAMIO 1V8_VCAM C550 1u R525 CAM_PWR_EN CAMERA CONNECTOR 75 5.6 Receiver & Speaker trouble-Speaker pin contact -Audio amp soldering -SUB PMIC soldering -SPK_P SPK_N VA501 100nH L501 100nH - 76 - AUDIO AMP SUB SYSTEM & SIGNAL DISTRIBUTOR SPK1 2 CN501 C544 47p L500 EVLC18S02015 VA500 EVLC18S02015 C542 100p C545 47p MAIN RECEIVER+0R100 C102 47p47p OUT100 R102 0 OUT101 RCV_P RCV_N TP5 TP6 76 - 77 -- 78 - 77 5.7 Microphone trouble78 5.8 Ear-MIc Jack Detection trouble79 5.9 Vibrator trouble-Connectors combination - 80 - MOTOR CIRCUIT 81 5.10 Keypad back light trouble-Signal path is connected well -TR is working properly QWERTY_KEY BACKLIGHT MULTI_KEY BACKLIGHT 83 5.11 SIM & USD troubleSIM Check Points - 84 - -Socket soldering -Proper SIM is used TP1 SIM_CLK TP3 SIM_DATA TP2 2V9_VSIMSIM CONNECTORTP2 TP3 84 - 85 -- 86 - uSD Check Points -Socket soldering -Card detect is working 85 Card insert Card eject87 5.12 Touch troubleTP8 Touch Check Points Socket-Connector soldering -Touch IC soldering (* After press the touch hot key, Touch key will works ) MAIN To FPCB Connector88 - 89 -TP5 TP6 TP7 TP4 TP8 TP1~3 - 90 - 89 5.13 Qwerty Key troubleKey Check Points -Dome switch contacts -Key coder IC soldering QWERTY KEY- 91 - Fig 6 Waveform of DCXO 90 Domeswitch 91 5.14 Trouble Shooting of Receiver PartMain PCB Bottom VCTCX O MobileSW&FEM PLL 92 5.14.1 Checking DCXO Circuit- 93 - 1pin1pin No DCXO Circuit is OK. See next page to check PLL Circuit. 1pin : 26MHzX100 Is the waveform of 1pin Similar to Fig.6? DCXO DCXO Cicuit DCXO Waveform 5.14.2 Checking Mobile SW & FEM 93 RFU601 TP2_C625 (ANT_SW2) TP1_C621 (ANT_SW1) TP5~8 U600 TP10 TP9 Mobile SW & FEM Circuit Mobile SW & FEM Check Points RX Mode EGSM DCS PCS ANT_SW1 Off Off Off ANT_SW2 Off Off Off TP10 TP9 TP5,6,7,8 - 95 - 94 EGSM RXANT SW1 ANT SW2Mobile SW FEM Control Signals - 96 - 95 5.15 Trouble Shooting of Transmitter PartMain PCB Bottom See RX Part 1. Checking DCXO Circuit 5.15.1 Checking DCXO Circuit DCXO PowerAmp Transceiver FEM & MS96 5.15.2 Checking Transceiver Output SignalsTXLB - 97 - TXHBTXLB TXHB Transceiver Output Circuit Transceiver Output Operation MODE Transceiver Output GSMK Fixed 8PSK Ramp Burst Control 98 5.15.3 Checking PAM Control SignalsPA_EN - 99 - MODE MODE PA_LEVEL TXON_PA GMSK LOW Ramp Burst Control HIGH 8PSK HIGH Control Amp bias HIGH Transceiver Output PAM Mode Operation PA_EN TX_RAMP PA_MODE PAM Control Signals - 101 - 5.15.4 Checking FEM & Mobile SWTP5,6,7,8 TP10 TP9Mobile SW & FEM CircuitCN600 TP9 TP1_C621 (ANT_SW1) TP5~8 FEM TX Control Logic Mobile SW & FEM Checking Points TX Mode EGSM DCS PCS ANT_SW1 On Off Off ANT_SW2 Off On On 100 RFU601 TP2_C625 (ANT_SW2) TP10 102 6. Download & S/W upgrade6.1 S/W download setup 103 6.2 Download program user guide104 6.3 Multi-Download Program Setting(Model-Base)106 - 107 -4 K5D1G12ACD-D075 PMB88881V5_VPLL Net Name SD1 1.5 2V85_VRF3 VLED 2V0_VRTC 2V5_VAUDIO 140 ON BOARD ARM9 JTAG & ETM INTERFACE EXT_RESET2.9/1.8 20 0 ... 120 2V85_VRF1 400 1V5_VSD1 UART84 9 1V8_VSD2 2V9_VMMC 42.0 80 220 2.5 2.9 VSIM SD2 300 2V9_VAUX 2V62_VIO VMME VVIB VRF2 VRF3 Voltage(V) Current(mA) 22 1.5 2.9/1.8 VAUDIOa VPLL 100 2V8_VVIB 2.9 2V9_VSIM Domain 2.85 1V5_VRF2 3.1 40 1.8 SU1 VIO 3V1_VUSB VRTC 5.6 ... 25 VUSB VRF1 VAUX 2.85 2.62 10 U102 107 - 108 -3 1 D 4 HALL EFFECT S/W2 D Remote Power On CHARGING IC OVP Battery Connector 18PIN IO CONNECTOR 108 - 109 -1 QWERTY_KEY BACKLIGHT MIC AUDIO AMP SUB SYSTEM & SIGNAL DISTRIBUTOR MIC MOTOR CIRCUIT13 12 1614 A 158 7 114 5 10 3 2 A 6 B 3 109 - 110 -Soft2OI B ENTER CXShift RAQ K H CLR SFn Space FZSym GD Soft1 V E Y MN MSGL Socket QWERTY KEY MAIN To FPCB Connector 110 - 111 -B E CAM CAMERA POWER CAMERA CONNECTOR(ENBY0020401,24PIN,0.9T,SOCKET,AXK7L24227G) SPK BACKUP BATTERY SIDE KEY MICRO SD Connector SIM CONNECTOR 111 - 112 -110 LMSP43NA-782 BLUETOOTH_CSR RF85 9 BLUECORE5-FM U601 TQM7M5005 U600 112 - 113 -Header FPCB To SLIDE Connector MAIN To FPCB ConnectorCopyright 2007 LG Electronics. Inc. All right reserved. 113 - 114 -TOUCH FPCB To SLIDE Connector Socket MULTI_KEY & END_KEYDIF_D(1) DIF_D(0) DIF_WR DIF_CD DIF_CS DIF_RESET DIF_D(6) DIF_D(5) DIF_D(4) DIF_D(3) SENDSOFT2SOFT1 RIGHTCLRHOT LEFT LCD BACKLIGHT MULTI_KEY BACKLIGHT LCD FILTER, ZIP CONNECTOR 114 - 115 -Header TO TOUCH FPCB FROM SLIDE PCB - MAIN RECEIVER+ Copyright 2007 LG Electronics. Inc. All right reserved. - 127 - 126 10. RF Calibration132 11. Stand-alone Test136 12. ENGINEERING MODE[2] Model Version [3] Eng Mode [4] Call Timer [5] Factory Reset [6] MF TEST [7] Network selection 138 13. EXPLODED VIEW & REPLACEMENT PART LIST
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