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LCD MONITOR TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LD84G

MODEL : M227WD

M227WD-PZJ

North/Latin America

http://aic.lgservice.com

Europe/Africa

http://eic.lgservice.com

Asia/Oceania

http://biz.lgservice.com

Internal Use Only

Содержание M227WD

Страница 1: ...FORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LD84G MODEL M227WD M227WD PZJ North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only ...

Страница 2: ...All right reserved Only for training and service purposes LGE Internal Use Only C 2008 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 15 TROUBLE SHOOTING 19 BLOCK DIAGRAM 25 EXPLODED VIEW 27 SVC SHEET ...

Страница 3: ...ain that treatment person s body are grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time The module not be exposed to the direct sunlight Avoid contact with water as it may a short circuit within the module If the surface of panel become dirty please wipe it off with a softmaterial Cleaning with a dirty or rough cloth may damage the...

Страница 4: ...ge on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic char...

Страница 5: ... the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the repla...

Страница 6: ...ing and specification by part number in accordance with BOM 2 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 3 1 Performance LGE TV test method followed 3 2 Demanded other specification Safety CE IEC specification EMC CE IEC No Item Specification Unit Remark 1 Type TFT Color LCD Module 2 Diagonal Size 21 53 inches 546 86mm diagonal 3 Active Display area 4...

Страница 7: ...og Upper Heterodyne Digital COFDM 4 Scart Jack 2EA PAL SECAM Scart 1 Jack is Full scart and support RF OUT ATV Scart 2 Jack is Half scart and support MNT DTV OUT 5 Component Input 1EA Y Cb Cr Y Pb Pr 6 CVBS Input 1EA PAL SECAM NTSC 4 System Rear PAL50 SECAM NTSC PAL60 7 S Video Input 1EA PAL SECAM NTSC 4 System Rear PAL50 SECAM NTSC PAL60 8 RGB Input RGB PC Analog D SUB 15 Pin 9 DVI Input DVI D Di...

Страница 8: ...1920x1080 60Hz Recommend 1920x1080 60Hz 4 Input Voltage Voltage 100 240 Vac 50 or 60Hz 5 Inrush Current Cold Start 50 A Hot 120 A 6 Operating Condition Sync H V Video LED Wattage Power S W On On mode On On Active Blue 70W Max On On Active Blue 55W Typ Sleep mode Off On Off Amber 1W RGB On Off Power S W Off Off mode Off Off 1W 7 MTBF 50 000 HRS with 90 Confidence level Lamp Life 40 000 Hours min 8 ...

Страница 9: ... active area and bezel A B 1 0 mm C D 1 0 mm A Interval between left of active area and bezel B Interval between right of active area and bezel C Interval between top of active area and bezel D Interval between bottom of active area and bezel No Item Specification Min Typ Max Remark 1 Viewing Angle CR 10 Right Left 75 75 85 85 CR 10 Up Down 70 70 80 80 2 Luminance Luminance cd m2 240 300 DVI or RG...

Страница 10: ... R min Remark Min Typ Max RGB Full White 100IRE 1 22 inch AUO 170 220 500 1 RF AV COMPONENT HDMI No Specification Remark Resolution H freq kHz V freq Hz 1 720x480 15 73 60 00 SDTV DVD 480i 2 720x480 15 63 59 94 SDTV DVD 480i 3 720x480 31 47 59 94 480p 4 720x480 31 50 60 00 480p 5 720x576 15 625 50 00 SDTV DVD 625 Line 6 720x576 31 25 50 00 HDTV 576p 7 1280x720 37 5 60 00 HDTV 720p 8 1280x720 44 96...

Страница 11: ...21 2 640x480 31 469 59 94 25 175 Input 848x480 60Hz 852x480 60Hz 640x480 60Hz Display 3 640x480 37 5 75 31 5 4 800x600 37 879 60 317 40 0 5 800x600 46 875 75 0 49 5 6 1024x768 48 363 60 0 65 0 7 1024x768 60 123 75 029 78 75 8 1152x864 67 500 75 000 108 0 9 1280x1024 63 981 60 02 108 0 10 1280x1024 79 976 75 035 135 0 11 1680x1050 64 674 59 883 119 0 12 1680x1050 65 290 59 954 146 25 13 1600X1200 7...

Страница 12: ...321 2 640x480 31 469 59 94 25 175 Input 848x480 60Hz 852x480 60Hz 640x480 60Hz Display 3 640x480 37 5 75 31 5 4 800x600 37 879 60 317 40 0 5 800x600 46 875 75 0 49 5 6 1024x768 48 363 60 0 65 0 7 1024x768 60 123 75 029 78 75 8 1152x864 67 500 75 000 108 0 9 1280x1024 63 981 60 02 108 0 10 1280x1024 79 976 75 035 135 0 11 1680x1050 64 674 59 883 119 0 12 1680x1050 65 290 59 954 146 25 13 1600X1200 ...

Страница 13: ... 720x576 31 25 50 54 SDTV 576P 3 1280x720 37 500 50 74 25 HDTV 720P 4 1280x720 44 96 45 59 94 60 74 17 74 25 HDTV 720P 5 1920x1080 33 72 33 75 59 94 60 74 17 74 25 HDTV 1080I 6 1920x1080 28 125 50 00 74 25 HDTV 1080I 7 1920x1080 26 97 27 23 97 24 74 17 74 25 HDTV 1080P 8 1920x1080 33 716 33 75 29 976 30 00 74 25 HDTV 1080P 9 1920x1080 56 250 50 148 5 HDTV 1080P 10 1920x1080 67 43 67 5 59 94 60 148...

Страница 14: ...g 519 8 193 2 400 5 mm After Packing 592 446 135 mm 2 Product Only SET 4 7 Kg Weight With BOX 6 3 Kg 3 Container Individual or 20ft 40ft Loading Palletizing Indi Wooden Indi Wooden Quantity 816 600 1700 1380 4 Stand Type Detachable Base detachable Assy Size W x D x H 271 2x 193 2x 108 4 Tilt Degree 5 15 degree Tilt force 0 8 3 5kgf Swivel Degree none Swivel Force 5 Appearance General Refer to Stan...

Страница 15: ...elative humidity 65 10 Input voltage 220V 60Hz 2 6 Adjustment equipment Color Analyzer CA 210 or CA 110 Pattern Generator MSPG 925L or Equivalent DDC Adjustment Jig equipment SVC remote controller 2 7 Don t push The IN STOP KEY after completing the function inspection 3 Main PCB check process APC After Manual Insult executing APC Download 1 Execute ISP program Mstar ISP Utility and then click Conf...

Страница 16: ...DTV ATV test on production line After downloading have to adjust TOOL OPTION again 1 Push IN START key in service remote controller 2 Select Tool Option 1 and Push OK button 3 Punch in the number Each model has their number 4 Completed selecting Tool option 3 1 ADC Process 3 1 1 PC input ADC 3 1 1 1 Auto RGB Gain Offset Adjustment Convert to PC in Input source Signal equipment displays Output Volt...

Страница 17: ...ipment condition CA210 CH 9 Test signal Inner pattern 85IRE Above 5 minutes H run in the inner pattern power on key of adjust remote control 15 Pin D Sub Jack is connected to the AUTO W B EQUIPMENT Adjust Process will start by execute I2C Command Inner pattern 0xF3 0xFF Adjust Process will finish by execute I2C Command Inner pattern Inner pattern 0xF3 0x00 Caution Color Temperature COOL Medium War...

Страница 18: ...o HDMI Jack Write EDID DATA to EEPROM 24C02 by using DDC2B protocol Check whether written EDID data is correct or not 4 6 Serial number RS 232C Press Power on key of service remocon Baud rate 115200 bps Connect RS232 Signal Cable to RS 232 Jack Write Serial number by use RS 232 Must check the serial number at the Diagnostics of SET UP menu Refer to below 4 7 HDCP High Bandwidth Digital Contents Pr...

Страница 19: ... check The H V sync and clock Can you see the normal waveform YES YES NO Could you measure voltage of TU500 IIC lines Are they all normal YES NO You should check power line IIC lines YES You should replace TUNER NO You should decide to replace TR Q503 or not NO After checking the Power of Main IC IC100 you should decide to replace Main IC or not This board has big problem because Main IC IC100 hav...

Страница 20: ... You should check power line IIC lines YES You should replace TUNER YES Check the output of Main IC IC100 Especially you should check The H V sync and clock Can you see the normal waveform YES NO After checking the Power of Main IC IC100 you should decide to replace Main IC or not This board has big problem because Main IC IC100 have some troubles After checking thoroughly all path once again You ...

Страница 21: ...lace this Jack NO After checking the Power of AV switch you should decide to replace AV switch or not Check the output of Main IC IC100 Especially you should check The H V sync and clock Can you see the normal waveform YES NO After checking the Power of Main IC IC100 you should decide to replace Main IC or not This board has big problem because Main IC IC100 have some troubles After checking thoro...

Страница 22: ...is Jack Check the output of Main IC IC100 Especially you should check The H V sync and clock Can you see the normal waveform YES NO After checking the Power of Main IC IC100 you should decide to replace Main IC or not This board has big problem because Main IC IC100 have some troubles After checking thoroughly all path once again You should decide to replace Main Board or not Component doesn t dis...

Страница 23: ...lock Can you see the normal waveform YES NO After checking the Power of Main IC IC100 you should decide to replace Main IC or not This board has big problem because Main IC IC100 have some troubles After checking thoroughly all path once again You should decide to replace Main Board or not Check the input of RGB Video switch IC701 Can you see the normal waveform NO After checking the Power of RGB ...

Страница 24: ...tch you should decide to replace HDMI Switch or not NO NO After checking the Power of this chip you should decide to replace this or not After checking the Power of HDMI Switch you should decide to replace TMDS351 or not YES Check HDCP communication lines IC900 NO After checking the Power of this chip you should decide to replace this or not Check the output of Main IC IC100 Especially you should ...

Страница 25: ...lel TU_TS_DATA TU_ERROR 74LVC541A IC800 PCM_CD_ON CI_CD_1 2 SPK_L R_OUT P404 LED_G R IR Flash Memory 4MBx2 IC101 2 SC1_CVBS_IN SC2_CVBS_IN SC1_TV_VOUT DTV MNT_V_OUT SC1_L R_IN TV_L R_OUT DTV MNT_L R_OUT LCD Panel P403 1920 x 1080 RESET SYSTEM_I2C TS_Serial TDA1308 IC1002 H phone_L R_OUT Tuner Tuner 24C02 24C02 24C02 Data Video Audio Control SPI DDR DDC_I2C UART J1000 SPDIF_OUT OPTIC SCART SCART Co...

Страница 26: ...3V_TU 5V 1 25V_ST 3 3V_AVDD_OTG 3 3V_AVDD_MPLL 3 3V_VDDP 3 3V_AVDD_DVI 3 3V_AVDD_ADC 3 3V_AVDD_MEMPLL 3 3V_VDDP_ST 5V_ST 5V_TU 15V_AMP 5V_CI_Vs 15V_SC IC903 AT24C02BN 10SU 1 8 IC902 AT24C02BN 10SU 1 8 IC901 AT24C02BN 10SU 1 8 IC900 TMDS351PAG IC802 KIC7SZ32FU IC801 NL17SZ08DFT2G IC800 74LVC541A PW IC702 AT24C02BN 10SU 1 8 IC701 STMAV340 IC700 MAX3232CDR IC500 TPS2042ADRG4 IC301 HY5DU561622FTP 4 C ...

Страница 27: ...ical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFE...

Страница 41: ...Sep 2008 Printed in Korea P NO MFL49414507 ...

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