LG KG280 Service Manual

LG KG280 Manual

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  • LG KG280 | Service Manual - Page 1
    Service Manual Internal Use Only Service Manual MG280/KG280 4:11 am 05/01 Vie Presione tecla Cáma Model : MG280/KG280 Date: August, 2007 / Issue 1.0
  • LG KG280 | Service Manual - Page 2
    Trace option [MENU 4 109 9.5 Call timer [MENU 5 109 9.6 Fact. Reset [MENU 6 109 9.7 S/W version 109 10. STAND ALONE TEST 110 10.1 Introduction 110 10.2 Setting Method 110 © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes -3- LGE Internal Use Only
  • LG KG280 | Service Manual - Page 3
    LGE Internal Use Only -4- Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 4
    expected to affect the use of the this phone 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 this model
  • LG KG280 | Service Manual - Page 5
    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 Phone may interfere with sensitive laboratory equipment, medical equipment, etc
  • LG KG280 | Service Manual - Page 6
    manual, 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. Inc. All right reserved. Only for training and service
  • LG KG280 | Service Manual - Page 7
    Access Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol LGE Internal Use Only -8- Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 8
    2. PERFORMANCE 2. 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
  • LG KG280 | Service Manual - Page 9
    0 dBm Toler. 3dB 3dB 3dB 5dB 5dB 5dB 5dB Toler. 3dB 4dB 4dB 4dB 4dB 4dB 5dB 5dB LGE Internal Use Only - 10 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 10
    -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 © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 11 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 11
    that Adopt a straight line in between 300 Hz and 1,000 Hz to be Max. level in the range. LGE Internal Use Only - 12 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 12
    tolerance 20 Ringer Volume 21 Charge Current 22 Antenna Display 23 Battery Indicator 24 Low Voltage Warning Specification 13 5 dB > 6 dBm ~ -91 dBm 2 -100 dBm ~ -96 dBm 1 -105 dBm ~ -101 dBm 0 ~ -105 dBm Battery Bar Number Voltage 0 3.48 ~ 3.63 V 1 3.63 ~ 3.70 V 2 3.70 ~ 3.76 V 3
  • LG KG280 | Service Manual - Page 13
    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 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 14
    , and PCS1900 operation. The PAM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation. The module battery drain. Figure 1. Functional Block Diagram Figure1. Functional Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
  • LG KG280 | Service Manual - Page 15
    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 Internal Use Only - 16 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 16
    ) to deliver regulated supply voltages to the functions on chip, with a battery input voltage of between 2.9V and 5.5V. Comprehensive power down options are Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 17 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 17
    O/P (1800/1900MHz) 12 VCC_TXVCO TX VCO supply (1) 13 VDD Serial interface supply 14 VBAT Battery I/P for LDO reg's 15 VLDO1 LDO regulator Output (2) 16 VLDO2 LO VCO Supply (3) Use Only - 18 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 18
    GSM1800_RX_OUT2 GSM1800_RX_OUT1 6 GSM900_RX_OUT2 5 4 GSM900_RX_OUT1 3 GSM850_RX_OUT2 GSM850_RX_OUT1 2 1 ANT 17 C630 C631 39p 39p Figure 3- 2 FEM CIRCUIT DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 19 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 19
    1 VCONT OUT 3 15K C647 2 GND VCC 4 1000p 26MHz C648 TG-5010LH-26M 2.2u EXSK0008101 Figure 3-3. VCTCXO CIRCUIT DIAGRAM LGE Internal Use Only - 20 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 20
    Connector Interface • Data Services Interface • Battery Interface (e.g. Dallas) 4. Other • Supports 13 MHz and 26 MHz Input Clocks • 1.8V Typical Core Operating Voltages • 289-Ball Package (12x12mm), 0.65mm Ball pitch 5. The AD6720 baseband transmit section supports the following mobile station GMSK
  • LG KG280 | Service Manual - Page 21
    3. TECHNICAL BRIEF Figure 3-4 SYSTEM INTERCONECTION OF AD6720 EXTERNAL INTERFACE LGE Internal Use Only - 22 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 22
    driver chip enable. MAIN LCD driver IC has own CS pin Select LCD modoule maker(2.4V : BYD, 0V : LGIT) This pin resets LCD module. This signal comes from AD6720 directly. Enable writing to LCD Driver. Enable reading to LCD Driver supplied to LCD driver IC. Select 16bits or 8bits interface
  • LG KG280 | Service Manual - Page 23
    PAM Enable/Disable PLL Enable/Disable Serial Data to PLL Clock to PLL Table 3-4. RF CONTROL SIGNALS DESCRIPTION LGE Internal Use Only - 24 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 24
    SIM card. This model can support only 3.0 volt interface SIM card. Clock 3.25MHz frequency. Reset SIM block Table 3-5. SIM CONTROL Figure 3-5. SIM Interface of AD6720 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 25 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 25
    ~ 260V, 50~60Hz - Output voltage: DC 5.2V (0.2 V) - Output current: Max 800mA (50mA) 5. Battery - Li-ion battery (Max 4.2V, Nom 3.7V) - Standard battery: Capacity - 830mAh LGE Internal Use Only - 26 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 26
    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. CIRCUIT FOR BATTERY CHARGING Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 27 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 27
    Color Depth Resolution Spec. 28.032*35.04 262,144 128 X RGB X 160 Unit mm colors dots Controlled by L_MAIN_LCD_CS, LCD_RESET, LCD_RS, LCD_WR, LCD_RD, IFMODE, L_DATA[00:15] ports • L_MAIN_LCD_CS : MAIN LCD driver chip enable. MAIN LCD driver IC has own CS pin • LCD_RST : This pin resets LCD module
  • LG KG280 | Service Manual - Page 28
    2V8_VEXT 2V8_VCAM R110 NA R111 0 R112 NA C112 1u 2V8_VLCD R108 NA R109 47K IF_MODE ECCH0004904 10V Under ECCH0004904 Figure 3-7. LCD INTERFACE CIRCUIT Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 29 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 29
    a control signal and YCbCr is real data interface signal. Figure 3-8. AIT701G BLOCK DIAGRAM Figure 3-9. SENSOR CHIP BLOCK DIAGRAM LGE Internal Use Only - 30 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 30
    C_CD05 C_CD06 C_CD07 CAM_PWR_EN C_SDA C_SCK C_MCLK C_PCLK C404 1u 2V8_VCAM C423 1uF Figure 3-10. AIT701G CIRCUIT CAM_PWR_EN STATUS HIGH DEACTIVE LOW ACTIVE Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 31 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 31
    * VA403 : NA 7 SW409 * 8 SW410 0 9 SW411 # POWERKEY VA400 PG05DBTFC VA401 PG05DBTFC VA402 PG05DBTFC Figure 3-11. Keypad Switches and Scanning LGE Internal Use Only - 32 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 32
    3. TECHNICAL BRIEF Touch-pad Switches and Scanning Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 33 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 33
    8KHz ,16KHz) is then passed to the DSP section of AD6720 for processing (coding, interleaving etc). MAIN MIC 2V5_VMIC VINNORP VINNORN R219 1K R220 1K C227 39p ECTH0004806 Internal Use Only - 34 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 34
    REC_P 7.5p 7.5p 7.5p 7.5p 47p 47p D1 DVSS1 D8 DVSS2 J4 DVSS3 B1 AVSS A5 HPVSS B8 SPVSS Figure 3-13. MAIN SPEAKER Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 35 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 35
    Headset Interface This phone has 6 electrodes such as GND, AUXIP, AUXIN (this pin is floating), AUXOP, JACK_DETECT, HOOK_DETECT. This type supports mono sound Switching from JACK INTERFACE - 36 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 36
    , there are 12 White LEDs in Main Board, which are driven by KEY_BACKLIGHT signal from AD6720. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes VBAT KEY BACKLIGHT Figure 3-15. KEY BACK-LIGHT ILLUMINTION R422 12K C421 27p R423 10 R424 10 65
  • LG KG280 | Service Manual - Page 37
    -T1 C205 C206 1u 27p MLED1 MLED2 MLED3 10V Over ECTH0004807 ECCH0004904 Figure 3-16. MAIN LCD BACKLIGHT ILLUMINATION LGE Internal Use Only - 38 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 38
    EMZ2 D300 1SS352-TPH3_F 10V Under ECCH0006201 C329 4.7u C335 27p L301 27nH L302 27nH OUT300 OUT301 ECZH0000826 10V Over Figure 3-17. MOTOR Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 39 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 39
    F2 F3 GND9 F4 TP702 C2 PCM_CLK PCM_SYNC GND10 GND11 F5 C705 1000p B4 C4 RESET GND12 F6 F7 SLEEP_CLK GND13 D1 TP703 I3 VAFL GND14 GND15 D2 TP704 I4 I5 Internal Use Only - 40 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 40
    4.1 RF Component TEST POINT 4. TROUBLE SHOOTING FL600 U601 U600 X600 Figure 4-1 U600 U601(AD6549) X600 FL600 Power Amp Module(SKY77318) RF Main Chip VCTCXO, 26MHz Clock FEM Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 41 - LGE Internal
  • LG KG280 | Service Manual - Page 41
    62CH, -60dBm setting (BCCH) Spectrum analyzer setting Oscilloscope setting (1) Check VCTCXO (2) Check Mobile SW &FEM (3) Check RX IQ Redownload SW or Do calibration again LGE Internal Use Only - 42 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 42
    next Page to check Mobile SW Yes Changing X600 X600 (b) 2V75_VVCXO AFC R622 15K 1 VCONT OUT 3 C647 1000p 2 GND VCC 4 26MHz C648 (a) TG-5010LH-26M 2.2u EXSK0008101 WAVEFORM Graph 4-1(a) Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 43
  • LG KG280 | Service Manual - Page 43
    4. TROUBLE SHOOTING (2) Checking FEM & Mobile SW TEST POINT SSWW560000..AANNTT SW600 SW600.RF VC_GSMV8C5_0E/EGGSSMM((VVCC21) VVCC__DDCCSSP/PCCSS(( LOW HIGH LOW LOW LOW LGE Internal Use Only - 44 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 44
    4. TROUBLE SHOOTING CHECKING FLOW For these 2 test case, No Call connection is needed .3(for EGSM) Pin 1,3: ~-62dBm No FL600.5(for DCS) Pin 5,7: ~-63dBm FL600.7(for PCS) Yes Ant SW & Mobile SW is OK See next Page to check Rx IQ Signal Changing FL600 For this RF Level test case, RX Stand
  • LG KG280 | Service Manual - Page 45
    4. TROUBLE SHOOTING (3) Checking RX IQ TEST POINT U601 C634 C614 Figure 5 WAVEFORM 3 Graph 3 Similar? Yes No Replace U601 Redownload software and calibration again LGE Internal Use Only - 46 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 46
    ) Spectrum analyzer setting Oscilloscope setting (1)Check VCTCXO (2)Check Mobile SW & FEM (3)Check PAM control signal (4)Check TX IQ Redownload SW or Do calibration again Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 47 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 47
    4. TROUBLE SHOOTING (1) Checking VCTCXO Circuit TEST POINT X600.4 (VCC) X600 Figure 7 CHECKING FLOW Check Pin 3. 26 MHzO.K? Refer to Graph 4-(b) No Check Pin 4. 2.75V OK? Refer to Graph 4-1(a) No X600.3 (OUT) Check U101 Yes VCTCXO Circuit is OK See next Page to check Mobile SW Yes
  • LG KG280 | Service Manual - Page 48
    4. TROUBLE SHOOTING (2) Checking Mobile SW & FEM TEST POINT SSWW560000..AANNT SW600 SW600.RF VC_GSMV8C5_0E/EGGSSMM mode ANT_SW1(VC_GSM850/EGSM) Graph 5(b) DCS,PCS Tx mode Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 49 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 49
    4. TROUBLE SHOOTING Checking Flow For the test, TX Stand alone Mode is needed. Refer to chapter 11 (PL=7 for GSM850 /DCS/PCS RX LOW VC2_DCS/PCS LOW HIGH LOW Table 4-2 LGE Internal Use Only - 50 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 50
    4. TROUBLE SHOOTING (3) Checking PAM Control Signal TEST POINT CIRCUIT VAPC 20 VBATT 17 VCC1B 6 VCC1A Graph 6 Graph 6 Similar? Yes No Redownload S/W Go to Next Step Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 51 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 51
    4. TROUBLE SHOOTING (4) Checking TX IQ TEST POINT Waveform C634 C614 Figure 10 Graph to Graph7 Similar? Yes No Replace U101 Redownload the Software And calibrate LGE Internal Use Only - 52 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 52
    SHOOTING 4.4 Power On Trouble TEST POINT 2V75_VABB 2V75_VVCXO 2V8_VEXT U101 2V5_VMIC 2V85_VSIM 2V8_VMEM 1V8_VCORE Figure 11 C112 2.2u C113 1u C114 1u C115 1u C116 1u Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 53 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 53
    -download software Does it work properly? The power-on procedure is Completed. The problem may NO YES be elsewhere. THE PHONE WILL POWER ON. Replace the main board LGE Internal Use Only - 54 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 54
    TEST POINT D200 R213 Q200 4. TROUBLE SHOOTING R212 CN300 CIRCUIT Figure 12 10V Under ECCH0004904 4 R215 1.5K R217 10K UMX1NTN R216 7.5K INDLED_R R218 10K Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 55 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 55
    Pin18 : GND The TA is out 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. LGE Internal Use Only - 56 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 56
    4.6 Vibrator Trouble TEST POINT 4. TROUBLE SHOOTING R320 R319 R322 R324 D300 Q300 Figure 13 R318 R321 CIRCUIT L301 27nH L302 27nH OUT300 OUT301 ECZH0000826 10V Over Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 57 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 57
    4. TROUBLE SHOOTING Checking Flow SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu START Is Resolder R319,R320 Resolder vibrator LGE Internal Use Only - 58 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 58
    4.7 LCD Trouble TEST POINT 4. TROUBLE SHOOTING CN101 FL101 FL104 FL102 U103 FL103 FL105 Figure 14 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 59 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 59
    4. TROUBLE SHOOTING LCD Trouble CIRCUIT LCD CONNECTOR 35pin(ZIP) L_DATA00 L_DATA02 L_DATA04 L_DATA06 FL101 EVRC14S03Q030050R 1 9 INOUT_A1 INOUT_B1 2 8 ECCH0004904 LGE Internal Use Only - 60 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 60
    4. TROUBLE SHOOTING CHECKING FLOW START Is the connection of NO FPCB with connector on U103 Resoldering CN101 Resoldering EMI filter(FL101~FL105) Replace LCD module Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 61 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 61
    4. TROUBLE SHOOTING 4.8 Camera Trouble TEST POINT U400 Figure 16 FL202 FL201 FL203 LGE Internal Use Only U401(AIT701G) Figure 17 - 62 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 62
    SHOOTING Camera Trouble CIRCUIT CAMERA C_CD00 C_CD01 C_CD02 C_CD03 FL201 EVRC14S03Q030050R 1 9 INOUT_A1 INOUT_B1 2 8 INOUT_A2 INOUT_B2 HIGH DEACTIVE LOW ACTIVE Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 63 - LGE Internal Use
  • LG KG280 | Service Manual - Page 63
    LCD itself Has no trouble ? YES Change the camera module, Does it work properly ? YES Itís camera module's problem Replace the camera module NO Go to the LCD trouble NO NO Check the Only - 64 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 64
    4.9 Speaker Trouble TEST POINT U204 4. TROUBLE SHOOTING CIRCUIT 1V8_VCAM 2V8_VCAM C202 0.1u C203 4.7u C204 4.7u D8 DVSS2 J4 DVSS3 B1 AVSS A5 HPVSS B8 SPVSS Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 65 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 65
    4. TROUBLE SHOOTING CHECKING FLOW START Check the audio signals of U204.A7 and U204.B7. Is that OK? of contact of speaker No Replace speaker Yes Speaker Working well!! LGE Internal Use Only - 66 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 66
    SHOOTING 4.10 SIM Card Interface Trouble TEST POINT Figure 19 J300 C317 CIRCUIT 2V85_VSIM 1 HSSC-6p-23 ENSY0014601 C317 C318 C319 220n 1000p NA SIM_CLK SIM_RST Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 67 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 67
    4. TROUBLE SHOOTING CHECKING FLOW START Does the SIM cards NO Change the SIM Card. Our phone supports 3V ? supports only 3V SIM card. YES Voltage at pin1 of board LGE Internal Use Only - 68 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 68
    SHOOTING 4.11 Earphone Trouble TEST POINT CN300 U301 U300 U302 U303 CIRCUIT Figure 20 JACK_LDO_EN USC5 R326 NA U301 HEADSET_EN 0 STATE USC 1 HEADSET_SPK Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 69 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 69
    phone NO change to the earphone mode? YES Set the audio part of the test Equipment to echo mode NO Can you hear your voice from the earphone? Is the level at pin8 NO Of CN300 low? YES Re-download software © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 70
    4.12 KEY backlight Trouble TEST POINT 4. TROUBLE SHOOTING R417 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 71 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 71
    4. TROUBLE SHOOTING CIRCUIT CHECKING FLOW START LGE Internal Use Only VBAT KEY each R and LED NO Replace or resoldering component VBAT Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes 12 3 C419 27p R419 10 R420 10 SSC-TWH104-HLS LD406
  • LG KG280 | Service Manual - Page 72
    4.13 Receiver Trouble TEST POINT 4. TROUBLE SHOOTING R119 R123 U101 Figure 22 CIRCUIT AIN1P AIN1N N17 AUXIP REC_P REC_N C136 39p LGND AGND33 AGND34 AGND35 AGND11 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 73 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 73
    TROUBLE SHOOTING CHECKING FLOW SETTING : After initialize Agilent 8960, Test GSM850,EGSM,DCS,PCS mode Set the property of audio as PRBS or continuous wave. Set the receiving volume of mobile - 74 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 74
    4.14 Microphone Trouble TEST POINT C228 R222 C230 R221 CIRCUIT Figure 23 MIC200 SUMY0010509 MIC200 1 2 C231 NA C232 NA VA202 EVLC18S02003 VA203 EVLC18S02003 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 75 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 75
    4. TROUBLE SHOOTING CHECKING FLOW SETTING : After initialize Agilent 8960, Test GSM850,EGSM,DCS,PCS mode START YES Microphone will work properly. Resolder component LGE Internal Use Only - 76 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 76
    4.15 RTC Trouble TEST POINT 4. TROUBLE SHOOTING R107 X100 Figure 24 CIRCUIT X100 3 2 4 R107 1 10M 32.768KHz MC-146_7pF NC1 D8 E1 NC2 NC3 F1 F3 NC4 NC5 G1 NC6 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 77 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 77
    4. TROUBLE SHOOTING CHECKING FLOW START Is the voltage level at R107 NO about 1.2V YES Replace X100and try again. YES RTC will work properly Check the soldering of R107. LGE Internal Use Only - 78 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
  • LG KG280 | Service Manual - Page 78
    4.16 Slide on/off Trouble TEST POINT 4. TROUBLE SHOOTING U304 C327 CIRCUIT 2V8_VEXT SLIDE C327 0.1u R317 51K SLIDE VDD 1 G1 OUT U304 A3212EELLT-T G2 C328 10p Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 79 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 79
    4. TROUBLE SHOOTING CHECKING FLOW START Is there the magnet in the Slide side? YES Voltage at pin 1 of U304 properly Resolder and U304 Replace U304 Change Main board LGE Internal Use Only - 80 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 80
    5. DOWNLOAD 5.1 Download A. Download Setup Figure 5-1 describes Download setup 5. DOWNLOAD Figure 5-1. Download Setup Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 81 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 81
    5. DOWNLOAD B. Multi Download Procedure 1. Run GSM Multi Download program and select Setting LGE Internal Use Only - 82 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 82
    5. DOWNLOAD 2. Select Configuration from the menu and you may see this window 3. Press key to select DLL file and press Open Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 83 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 83
    5. DOWNLOAD 4. Press key to select the mot files 5. Select AlchemyData.mot and press open 6. Repeat step 5-5 to select CodeData.mot LGE Internal Use Only - 84 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 84
    7. Check if the ADI option is set to Hercules 8. Press OK to end Configuration 5. DOWNLOAD Select Hercules Select Rate Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 85 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 85
    5. DOWNLOAD 9. Press START to execute download 10. Once downloading is started, press STOP button to keep from re-downloading after downloading is completed. LGE Internal Use Only - 86 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 86
    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. Battery MIC Slide PCB 1.77î LCD Charge
  • LG KG280 | Service Manual - Page 87
    LGE Internal Use Only - 88 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 88
    TONE A + FM Radio + Speaker Phone U12 T11 B11 U13 F15 E15 D1 LCD_LDO_EN F14 H13 GPO_5 LIGHT1 CSFS1 RESET R12 A3 R112 200 _RESET _RESET 10 11 LG(42)-A-5505-10:01 LG Electronics Inc. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes -
  • LG KG280 | Service Manual - Page 89
    C231 NA C232 NA VA202 EVLC18S02003 VA203 EVLC18S02003 BACK-UP BATTERY VBACKUP C241 1u Mount on the opposit BA201 NBL414R-F9J SBCL0001701 10:01 LG Electronics Inc. LGE Internal Use Only - 90 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 90
    10V Over 10V Under ECTH0005301 10V Over ECZH0000826 10V Under ECCH0004904 10V Under ECCH0004904 1 2 3 4 5 6 7 LGIC(42)-A-5505-10:01 LG Electronics Inc. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 91 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 91
    C421 27p R423 10 R424 10 65 4 R420 R419 CAM_PWR_EN STATUS HIGH DEACTIVE LOW ACTIVE E 1 2 3 4 5 6 7 LGIC(42)-A-5505-10:01 LGE Internal Use Only - 92 - LG Electronics Inc. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 92
    INOUT_B4 L_DATA07 L_DATA05 L_DATA03 L_DATA01 5 G1 10 G2 GND500 EVRC5S03Q050200R FL509 SFEY0014801 E 1 LGIC(42)-A-5505-10:01 2 3 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes 4 5 6 7 - 93 - LG Electronics Inc. LGE Internal Use Only
  • LG KG280 | Service Manual - Page 93
    R622 1 VCONT OUT 3 15K C647 2 GND VCC 4 1000p 26MHz C648 TG-5010LH-26M 2.2u EXSK0008101 E 1 2 3 4 5 6 7 LGIC(42)-A-5505-10:01 LGE Internal Use Only - 94 - LG Electronics Inc. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 94
    C2 PCM_CLK PCM_SYNC GND10 GND11 F5 C705 1000p B4 C4 RESET SLEEP_CLK GND12 F6 F7 GND13 D1 TP703 I3 VAFL GND14 3 4 5 6 7 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 95 - 10 A B C D LG Electronics Inc. LGE Internal Use Only
  • LG KG280 | Service Manual - Page 95
    I/F 2V8_VLCD 2V8_VEXT 2V8_VCAM R110 NA R111 0 R112 NA C112 1u 2V8_VLCD R108 NA R109 47K IF_MODE ECCH0004904 10V Under ECCH0004904 LGE Internal Use Only - 96 - LG Electronics Inc. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 96
    C_CD00 LCD_LDO_EN L_DATA15 L_DATA13 L_DATA11 L_DATA09 L_DATA07 L_DATA05 L_DATA03 L_DATA01 LCD_RS VSYNCOUT LCD_DIM_CTL ECTH0004807 10V Over ECTH0004807 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 97 - LG Electronics Inc. LGE Internal Use Only
  • LG KG280 | Service Manual - Page 97
    MENU SENSE0 SENSE2 UP CONF SENSE4 LEFT SENSE6 OK SENSE7 RIGHT SENSE5 SEND SENSE8 DOWN SENSE1 CLR SENSE3 LGE Internal Use Only - 98 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 98
    8. pcb layout Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes MG280/KG280 - 99 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 99
    8. pcb layout LGE Internal Use Only MG280/KG280 - 100 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 100
    8. pcb layout Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes MG280/KG280 - 101 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 101
    8. pcb layout LGE Internal Use Only MG280/KG280 - 102 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 102
    8. pcb layout MG280/KG280 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 103 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 103
    8. pcb layout LGE Internal Use Only MG280/KG280 - 104 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 104
    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 Bluetooth off All Calls Reset Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 105
    9.1.2 LCD 1) COLOUR : WHITE, RED, GREEN, BLUE, BLACK 2) Contrast Value 9.1.3 Backlight This menu is to test the LCD of Backlight. When entering into the menu, the present backlight-value in the phone is displayed. Use LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 106
    Battery ADC 2) AUX ADC : Auxiliary ADC 3) TEMPER ADC : Temperature ADC 9.1.7 BATTERY 1) Bat Cal : This displays the value of Battery after switching off and on the phone. 1) VbControl1 : VbControl1 bit © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 107 -
  • LG KG280 | Service Manual - Page 107
    the baseband test automatically. Selecting this menu will process the test automatically, and phone displays the previous menu after completing the test. 9.3.1 All auto test LCD, Use Only - 108 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 108
    User cannot reset this value. 2) Reset settings : This resets total conversation time to this, [00:00:00]. 9.6 Fact. Reset [MENU 6] This Factory Reset version This displays software version stored in the phone. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
  • LG KG280 | Service Manual - Page 109
    manual explains how to examine the status of RX and TX of the model. A. Tx Test TX test - this is to see if the transmitter of the phones is activating normally. B. Rx Test RX test - this is to see if the receiver of the phones Normal phone should indicate the value of RSSI close to -16dBm.
  • LG KG280 | Service Manual - Page 110
    or Rx c. Select band and channel d. After setting them all above, press connect button. e. Press the start button Figure 10-1. HW test program Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 111 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 111
    10. STAND ALONE TEST Figure 10-2. HW test setting LGE Internal Use Only Figure 10-3. Ramping profile - 112 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 112
    Equipment List. GSM Test Set(8960) GPIB Cable Brand Agilent LG LG Agilent Agilent LG Mobile Switch Cable Power Supply GPIB Cable Figure 11-1. Equipment Setup Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 113 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 113
    phone is awaked. It is used ADI chipset. In ON state, phone is awaked. It is used TI chipset. Power is provided for phone from battery Power is provided for phone is provided for Test Jig Indicate charging state of the phone battery Indicate data transfer state through the UART port Indicate data
  • LG KG280 | Service Manual - Page 114
    Supply 4.0V 3. Set the 3rd, 4th of DIP SW ON state always 4. Press the Phone power key, if the Remote ON is used, 1st ON state 11.4 Procedure 1. Connect Operation menu (3) Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 115 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 115
    11. AUTO CALIBRATION 4. Set PORT COM1(useing RS232 cable) & Logic Mode 1 LGE Internal Use Only - 116 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 116
    5. Select MG280/KG280 and then Click Start 11. AUTO CALIBRATION Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 117 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 117
    values per every power level and gain code and the same measure is performed battery calibration. You can get main Battery Config Table and temperature Config Table will be reset. LGE Internal Use Only - 118 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
  • LG KG280 | Service Manual - Page 118
    38 41 43 44 45 49 46 47 48 42 50 51 52 56 57 58 59 62 60 53 54 55 61 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 119 - LGE Internal Use Only
  • LG KG280 | Service Manual - Page 119
    LGE Internal Use Only - 120 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 120
    COMPLEX, (empty), , , , , Black 28 Black 30 Black 36 Black 35 Metal Silver 26 Without Color 25 Without Color 23 Without Color 24 Black 29 Without Color 27 Black 33 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 121 - LGE
  • LG KG280 | Service Manual - Page 121
    Silver Black Black Black Black Without Color Without Color Black Black Without Color Silver Black Black White Black Without Color Without Color 19 18 16 10 14 15 8 20,59 45 47 46 LGE Internal Use Only - 122 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
  • LG KG280 | Service Manual - Page 122
    SACE0050401 Spec SACC0030401 FREE) EDLH0012001 RED ,ETC ,R/TP ,side view(PB-FREE) EDLH0012001 RED ,ETC ,R/TP ,side view(PB-FREE) EDLH0012001 RED ,ETC ,R/TP ,side view(PB-FREE) EDLH0012001 RED ,ETC ,R/TP ,side view(PB-FREE LG Electronics. Inc. All right reserved. Only for training and service
  • LG KG280 | Service Manual - Page 123
    CAP,CERAMIC,CHIP 7 C109 CAP,CERAMIC,CHIP 7 C112 CAP,CERAMIC,CHIP Part Number Spec SAEC0019701 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP ECCH0004904 1 uF,6.3V Internal Use Only - 124 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 124
    ASSY,MAIN 4 SAFB00 PCB ASSY,MAIN,INSERT Part Number Spec ECZH0000826 27 pF,50V ,J ,NP0 ,TC ,1005 TP ,3PORT Charge Pump(AAT2154 Low cost version) SPEY0046001 FR-4 ,0.5 mm,BUILD-UP Black Remark 13 12 9 48 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
  • LG KG280 | Service Manual - Page 125
    6 ANT700 ANTENNA,GSM,FIXED 6 BA201 BATTERY,CELL,LITHIUM 6 C100 CAP,TANTAL,CHIP CERAMIC,CHIP Part Number Spec SJMY0008402 3 V,0.08 type BB, Max T 1.67, phi 4.8, Pb-Free ECTH0004807 10 uF,10V ,M ,STD ,1608 ,R/TP LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 126
    6 C323 CAP,CERAMIC,CHIP 6 C324 CAP,CERAMIC,CHIP Part Number Spec ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP ECCH0000120 39 pF,50V,J,NP0 TC ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 127 - Color Remark LGE Internal Use
  • LG KG280 | Service Manual - Page 127
    ,CHIP 6 C611 CAP,CERAMIC,CHIP 6 C612 CAP,CERAMIC,CHIP 6 C614 CAP,CERAMIC,CHIP Part Number Spec ECCH0005602 2.2 uF,16V ,K ,X5R ,HD ,1608 ,R/TP ECTH0005301 100 uF,6.3V ,M ,L_ESR , Only - 128 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 128
    CERAMIC,CHIP 6 C708 CAP,CERAMIC,CHIP 6 C709 CAP,CERAMIC,CHIP Part Number Spec ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP ECCH0000182 0.1 uF,10V ,K ,X5R ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 129 - Color Remark LGE Internal
  • LG KG280 | Service Manual - Page 129
    R111 RES,CHIP,MAKER 6 R112 RES,CHIP,MAKER Part Number Spec ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Battery Connector EDSY0017301 VSM ,15 V,100 mA,R/TP ,PB-FREE EDSY0017301 VSM ,15 V,100 mA,R/TP ,PB-FREE LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 130
    CHIP,MAKER 6 R318 RES,CHIP,MAKER 6 R319 RES,CHIP,MAKER Part Number Spec ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP ERHZ0000320 82 Kohm,1/16W ,F ,1005 ,J ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 131 - Color Remark LGE
  • LG KG280 | Service Manual - Page 131
    R620 RES,CHIP,MAKER 6 R621 RES,CHIP,MAKER 6 R622 RES,CHIP,MAKER Part Number Spec ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 132 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 132
    DIODE,TVS 6 VA401 DIODE,TVS Part Number Spec ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP , Othello G, VCTCXO support EUSY0077201 SC70 ,5 PIN,R/TP ,Inverter Gate, Pb Free EUSY0232812 SON1612-6 ,6 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 133
  • LG KG280 | Service Manual - Page 133
    PART LIST Level 6 Location No. Description VA402 DIODE,TVS Part Number Spec EDTY0008501 TFSC ,5 V,50 W,R/TP ,small size 6 X100 X-TAL EXXY0004601 Remark LGE Internal Use Only - 134 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG KG280 | Service Manual - Page 134
    LD406 DIODE,LED,CHIP 6 LD407 DIODE,LED,CHIP 6 LD408 DIODE,LED,CHIP Part Number Spec ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP ECCH0000182 0.1 uF,10V ,K Color Remark Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 135 - LGE
  • LG KG280 | Service Manual - Page 135
    6 VA200 VARISTOR 6 VA201 VARISTOR Part Number Spec EDLH0012501 Snow White ,1608 ,R/TP ,color TP ,Small package Dual SPDT analog Switch, PB-Free EUSY0306401 67ball WLCSP, 64Poly+MP3 ,67 PIN,R/ MLPD ,3 PIN,R/TP ,Hall Effect Switch, Pb Free SEVY0003901 5.5 V, ,SMD ,480pF, 1005 SEVY0003901 5.5
  • LG KG280 | Service Manual - Page 136
    Level 3 3 Location No. Description SBPP00 BATTERY PACK,LIPOLYMER SGEY00 EAR PHONE/EAR MIKE SET Part Number Spec SBPP0022105 3.7 V,800 mAh,1 CELL,PRISMATIC ,MG280c Mexico Label BATT, Pb-Free ,; ,3.7 ,800mAh ,0.2C ,PRISMATIC ,50x34x38 , ,BLACK ,Hardkpack ,Mexico Label SGEY0003209 ; ,10mW
  • LG KG280 | Service Manual - Page 137
    Note
  • LG KG280 | Service Manual - Page 138
    Note
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Service Manual
Model : MG280/KG280
Service Manual
MG280/KG280
Date: August, 2007 / Issue 1.0
Presione tecla Cáma
4:11 am
05/01 Vie
Internal Use Only