LG 47LB9R Series Service Manual Download Page 1

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LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LP7AB

MODEL : 47LB9R

47LB9R-TD

website:http://biz.LGservice.com

Internal Use Only

Summary of Contents for 47LB9R Series

Page 1: ...LCD TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LP7AB MODEL 47LB9R 47LB9R TD website http biz LGservice com Internal Use Only ...

Page 2: ...ht reserved Only for training and service purposes LGE Internal Use Only 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 TROUBLE SHOOTING 15 BLOCK DIAGRAM 20 EXPLODED VIEW 21 REPLACEMENT PARTS LIST 23 SVC SHEET ...

Page 3: ...fe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna term...

Page 4: ...e 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 charg...

Page 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 replac...

Page 6: ...ety CE IEC specification EMC CE IEC SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 4 Electrical Specification No Item Specification Remark 1 Video input applicable system NTSC PAL SECAM China Asia 2 Receivable Broadcasting System PAL D K B G I NTSC M SECAM BG DK China Asia 3 Available Channel VHF E2 E12 China Asia UHF E21 E69 CATV S1 S20 HYPER S21...

Page 7: ...nti glare treatment of the front polarizer Back Light 24CCFL 7 Set Optical Feature No Parameter Symbol Value Unidad Remark Min Typ Max 1 Contrast Ratio CR 500 800 100IRE Full white pattern APC Clear Dynamic LC TOOL PC Mode Dynamic CR 8000 10000 100IRE Full white pattern APC Clear Dynamic Measure after 30 seconds in full black spec LC TOOL Except PC Mode 2 Surface Luminance LBL 350 450 Cd m2 Normal...

Page 8: ...ariation 5WHITE 5P 1 3 4 Response Time Rise Time TrR 8 16 ms Decay Time TrD 8 16 ms Gray to Gray 18 ms 5 Color Coordinates CIE1931 RED Rx Typ 0 638 Typ 100IRE Full white pattern Ry 0 03 0 342 0 03 GREEN Gx 0 286 Gy 0 615 BLUE Bx 0 144 By 0 064 WHITE Wx 0 279 Wy 0 292 6 Viewing Angle RC 10 X axis righ r 85 89 degree 4 0 X axis left l 85 89 180 X axis up u 85 89 arriba o 90 X axis down d 85 89 o 270...

Page 9: ... freq kHZ V freq Hz Pixel clock MHz Proposed 1 720 480 15 73 59 94 13 500 SDTV DVD 480I 525I 2 720 480 15 75 60 00 13 514 SDTV DVD 480I 525I 3 720 576 15 625 50 00 13 500 SDTV DVD 576I 625I 4 720 480 31 47 59 94 27 000 SDTV480P 5 720 480 31 50 60 00 27 027 SDTV480P 6 720 576 31 25 50 00 27 000 SDTV 576P 7 1280 720 44 96 59 94 74 176 HDTV 720P 8 1280 720 45 00 60 00 74 250 HDTV 720P 9 1280 720 37 5...

Page 10: ...y using LGIDS l Option adjustment following BOM Tool Option1 Tool Option2 Area Option Fig 1 1 Push the ADJ key in the Adjust Remocon 2 Input the Option Number that was specified in the BOM into the Shipping area 3 Select Tool Option1 Tool Option2 Area Option by using Â CH key and press the number key 0 9 consecutively ex If the value of Tool Option1 is 7 input the data using number key 7 Fig 1 3 2...

Page 11: ... Fig 1 5 1 1 Method of Auto AV Color Balance 1 Press the FRONT AV KEY on R C for converting input mode 2 Input the Video Signal 100 Color Bar signal into AV MA TA 3 Set the PSM to Dynamic mode in the Picture menu 4 Press INSTART key on R C for adjustment 5 Press the Vol key to operate the set then it becomes automatically 6 Auto RGB OK means the adjustment is completed 5 1 2 Requirement This AV co...

Page 12: ...M to Dynamic mode in the Picture menu 3 Press the INSTART key on R C for adjustment 4 Press the Vol key to operate the set then it becomes automatically 5 Auto RGB OK means the adjustment is completed 5 3 Adjustment of RGB Required Equipments Remote controller for adjustm 802F Pattern Generator Master MSPG 925FA etc MSPG 925FA Pattern Generator Which has XGA 1024 768 60Hz PC Format output signal 1...

Page 13: ... Coordinates Target But in case of WCG module use the CH12 of CA 210 6 1 Manual white Balance INNER PATTERN 1 Execute CA 210 9CH Zero Calibration 2 Execute the SET Heat Run for 30minutes 3 Use cortez inner pattern as below Fig 4 Supply 216Level 85 IRE full screen pattern 4 Enter the White Balance adjustment mode by pressing the INSTART key twice White Balance on R C 5 Stick sensor to center of the...

Page 14: ...0h 80h R Gain_Warm j d 00 00h 80h 80h G Gain_Warm j e 00 00h 80h 80h B Gain_Warm j f 00 00h 80h 80h R Gain_Cool j g 00 00h 80h 80h G Gain_Cool j h 00 00h 80h 80h B Gain_Cool j i 00 00h 80h 80h R Offset_Normal l j 00 00h 80h G Offset_Normal l k 00 00h 80h B Offset_Normal l l 00 00h 80h R Offset_Warm l m 00 00h 80h G Offset_Warm l n 00 00h 80h B Offset_Warm l o 00 00h 80h R Offset_Cool l p 00 00h 80...

Page 15: ...er board Off No Is the inverter 24V on power board normal No No No No Is output the normality Low High voltage except stand by 5V No Inverter_On Signal is High of 5 th pin in P1001 on Main board Yes On Yes Is the link cable normal 1 Check the Inverter connector 2 Check the LCD Module Yes 1 Check the Main Board 1 Reconnect the link cable in P1301 No 1 Check the Main board 1 Change the Power Board 1...

Page 16: ...ule normal Is the LVDS cable connected well Replace cable Replace VSC B D No No Yes Replace Ctrl Board in Plasma panel No Replace LCD Module No Yes Yes Is the LCD Module normal Yes Plasma LCD TV No Cable inserts well No Replace FIL8668 IC IC800 2 In case of occur strange screen into specific mode 2 1 In case of doesn t display the OSD 1 Symptom 1 LED is White 2 The minute discharge work continuous...

Page 17: ...el if all input display normally 2 Check the PIP and Double Window if it display normally Re Check it Swap 3 In case of unusual situation from RF mode Is the Tuner normal No Yes Yes Cable inserts well Replace Tuner Replace IC611 Is the Tuner Cable connected well No Is the Input voltage IIC Communication and HV sync normal No No Is normal the Input voltage IIC Communication and CVBS output No No Is...

Page 18: ...ace IC1200 No Is the Input voltage IIC Communication and HV sync normal No Is the IC1200 normal Replace IC800 No Is the Input voltage IIC Communication and HV sync normal No Is the IC800 normal Replace IC800 No Is the Input voltage IIC Communication and HV sync normal No Is the IC800 normal Yes Replace IC611 No Is the Input voltage IIC Communication and HV sync normal No Is the IC611 normal Replac...

Page 19: ...k follow No No No All input mode is no sound Only HDMI is no sound Replace IC400 Replace IC401 Replace VSC B D Set on speaker in menu Download the EDID data Check the speaker cable No Only RF is no sound Check the Tuner In Out No No No Replace IC402 No Is the Speaker on in Menu Yes Yes Yes Is the speaker cable normal Yes Yes Yes Yes IC1401 operate normally IC1401 operate normally IC402 operate nor...

Page 21: ...onics Inc All right reserved Only for training and service purposes LGE Internal Use Only 21 EXPLODED VIEW 300 121 120 710 500 510 121 700 200 LV1 803 800 804 600 520 610 840 830 910 900 400 530 820 806 805 802 801 807 A2 A21 ...

Page 22: ...mm VOUT 5V AT 80LUX LG INNOTEK CO LTD 710 MES36332302 Indicator MOLD ABS LED PRE AMP 32LB9 PMMA 7 PHY SMOKE BLACK PRINTING 800 MGJ37965102 Plate Metal PRESS SBHG1 1 6 METAL EGI 47LB9DF UA 801 MGJ32889606 Plate Metal PRESS SBHG1 1 6 METAL EGI BAR BOTTOM 47LB9 802 MGJ32889801 Plate Metal PRESS SBHG1 1 6 METAL EGI BAR LEFT 47LY3 803 MGJ32897002 Plate Metal PRESS SBHGI 1 6 METAL EGI BAR CENTER 47LY3 8...

Page 23: ...WF6DC Capacitor AL Chip MVK6 3TP16VC100M 100uF C409 0CE226WF6DC Capacitor AL Chip MVK5 0TP16VC22M 22uF 2 C412 0CE335WK6D8 Capacitor AL Chip MVK4 0TP50VC3 3M 3 3uF C420 0CE106WFKDC Capacitor AL Chip MVK4 0TP16VC10M 10uF 2 C421 0CE475WK6DC Capacitor AL Chip MVK5 0TP50VC4 7M 4 7uF C422 0CE475WK6DC Capacitor AL Chip MVK5 0TP50VC4 7M 4 7uF C423 0CE107WF6DC Capacitor AL Chip MVK6 3TP16VC100M 100uF C432 ...

Page 24: ...1243 0CK102CK56A Capacitor Ceramic Chip 0603B102K500CT 1nF 10 C1245 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C1246 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C1247 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C1248 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C1403 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C1405 0CK104CK56A ...

Page 25: ... Chip 0603B104K160CT 100nF 1 C419 0CK104CF56A Capacitor Ceramic Chip 0603B104K160CT 100nF 1 C424 0CK682CK51A Capacitor Ceramic Chip C1608Y5P1H682KT 6 8nF C425 0CK682CK51A Capacitor Ceramic Chip C1608Y5P1H682KT 6 8nF C428 0CK474CH94A Capacitor Ceramic Chip 0603F474Z250CT 470nF C429 0CK474CH94A Capacitor Ceramic Chip 0603F474Z250CT 470nF C430 0CK474CH94A Capacitor Ceramic Chip 0603F474Z250CT 470nF C...

Page 26: ...nF 1 C882 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C883 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C884 0CK103CK56A Capacitor Ceramic Chip 0603B103K500CT 10nF 10 C885 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C887 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C888 0CK104CK56A Capacitor Ceramic Chip 0603B104K500CT 100nF 1 C889 0CK104CK56A ...

Page 27: ...3945901 Diode TVS CDS3C30GTH 30V 50V 120 D505 EAH33945901 Diode TVS CDS3C30GTH 30V 50V 120 D506 EAH33945901 Diode TVS CDS3C30GTH 30V 50V 120 D507 EAH33946001 Diode TVS CDS3C05GTA 5 6V 6 4V 1 D508 EAH33946001 Diode TVS CDS3C05GTA 5 6V 6 4V 1 D509 EAH33945901 Diode TVS CDS3C30GTH 30V 50V 120 D600 EAH33945901 Diode TVS CDS3C30GTH 30V 50V 120 D601 EAH33945901 Diode TVS CDS3C30GTH 30V 50V 120 ZD101 0DZ...

Page 28: ...tor Multilayer Chip MLI 201212 100K 10UH 1 L408 0LCML00020C Inductor Multilayer Chip MLI 201212 100K 10UH 1 L1406 EAP32842806 Inductor Wire Wound Chip NR8040T220M 22UH 20 2 L1407 EAP32842806 Inductor Wire Wound Chip NR8040T220M 22UH 20 2 L1408 EAP32842806 Inductor Wire Wound Chip NR8040T220M 22UH 20 2 L1409 EAP32842806 Inductor Wire Wound Chip NR8040T220M 22UH 20 2 IC1210 0TR830009BA FET BSS83 N C...

Page 29: ... Chip MCR01MZPJ103 10KOHM 5 R1030 0RJ4702D677 Resistor Chip MCR03EZPJ473 47KOHM 5 R1036 0RJ1002C678 Resistor Chip MCR01MZPJ103 10KOHM 5 R104 0RH0000D622 Resistor Chip MCR10EZHJ000 0OHM 5 1 R104 0RH0000D622 Resistor Chip MCR10EZHJ000 0OHM 5 1 R104 0RH4701D622 Resistor Chip MCR10EZHJ472 4 7KOHM 5 R104 0RJ0752C678 Resistor Chip MCR01MZPJ750 75OHM 5 R105 0RH1000D622 Resistor Chip MCR10EZHJ101 100OHM 5...

Page 30: ...OHM 5 1 R138 0RJ0752C678 Resistor Chip MCR01MZPJ750 75OHM 5 R140 0RH1001D622 Resistor Chip MCR10EZHJ102 1KOHM 5 R140 0RJ0682C678 Resistor Chip MCR01MZPJ680 68OHM 5 R1403 0RJ3301C678 Resistor Chip MCR01MZPJ332 3 3KOHM 5 R1407 0RJ1000C678 Resistor Chip MCR01MZPJ101 100OHM 5 R141 0RH3001D622 Resistor Chip MCR10EZHJ302 3KOHM 5 R1413 0RJ0000C678 Resistor Chip MCR01MZPJ000 0OHM 5 1 R1417 0RJ0000C678 Res...

Page 31: ...p MCR01MZPJ101 100OHM 5 R247 0RJ1002C678 Resistor Chip MCR01MZPJ103 10KOHM 5 R300 0RJ1502C678 Resistor Chip MCR01MZPJ153 15KOHM 5 R301 0RJ0000C678 Resistor Chip MCR01MZPJ000 0OHM 5 1 R302 0RJ4701C678 Resistor Chip MCR01MZPJ472 4 7KOHM 5 R303 0RJ4701C678 Resistor Chip MCR01MZPJ472 4 7KOHM 5 R304 0RJ4701C678 Resistor Chip MCR01MZPJ472 4 7KOHM 5 R305 0RJ1002C678 Resistor Chip MCR01MZPJ103 10KOHM 5 R3...

Page 32: ...01MZPJ221 220OHM 5 R800 0RJ3901C678 Resistor Chip MCR01MZPJ392 3 9KOHM 5 R802 0RJ5101C678 Resistor Chip MCR01MZPJ512 5 1KOHM 5 R803 0RJ0222C678 Resistor Chip MCR01MZPJ220 22OHM 5 R805 0RJ0000C678 Resistor Chip MCR01MZPJ000 0OHM 5 1 R806 0RJ0222C678 Resistor Chip MCR01MZPJ220 22OHM 5 R808 0RJ0000C678 Resistor Chip MCR01MZPJ000 0OHM 5 1 R811 0RJ1001C678 Resistor Chip MCR01MZPJ102 1KOHM 5 R812 0RJ022...

Page 33: ...Jack Phone PEJ024 01 1P 4P STRAIG JK100 6612J10003Y Jack RCA PPJ216 01 14 0MM 1RX3C JK101 6612J10003M Jack RCA PPJ206 01 14 0MM 1RX3C JK104 6612J10031A Jack RCA PPJ209 02 14 0MM 1RX5C JK105 6612J10031A Jack RCA PPJ209 02 14 0MM 1RX5C JK400 6612J10043A Jack RCA PPJ200 07 15MM 1RX4C A D101 0DLBE0138AA LED DIP BL BUBGE301 ROUND 3MM IC101 6712000013A Receiver Module TSOP4438SO1 4 5TO5 5V X801 166 E02F...

Page 37: ...Oct 2007 Printed in Korea P NO MFL39407702 ...

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