LG 47LB1DA-UB 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 : LA61B

MODEL : 47LB1DA-UB

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

Summary of Contents for 47LB1DA-UB

Page 1: ... TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LA61B MODEL 47LB1DA UB website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...CT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 SVC REMOCON 16 VIDEO TROUBLE SHOOTING BLOCK DIAGRAM 17 AUDIO TROUBLE SHOOTING BLOCK DIAGRAM 40 EXPLODED VIEW 51 EXPLODED VIEW PARTS LIST 52 REPLACEMENT PARTS LIST 53 SVC SHEET ...

Page 3: ...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 terminals phone jacks etc If the exposed metallic part has a ...

Page 4: ...vely 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 charge buildup or exposure of the assembly 3 Use only a ground...

Page 5: ...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 replaced component and adjacent components and the circuit boa...

Page 6: ...OM E The receiver must be operated for about 20 minutes prior to the adjustment 2 Test method F Performance LGE TV test method followed G Demanded other specification Safety UL CSA IEC specification EMC FCC ICES IEC specification No Item Specification Remark 1 Receiving System 1 ATSC 64 256 QAM NTSC M 2 Available Channel 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV 01 135 5 CADTV 01 135 3 Input Volt...

Page 7: ...sed condition SET condition Contrast Brightness Level 100 Environment condition Dark room in the non outside light 5 Measurement Impress test pattern signal in 1 5 H 1 5 V White Window of 100 255Gray Level Measure 3 times brightness of central white window and mark peak brightness in max brightness degree Measure the same condition in video signal RGB signal Average Brightness measure specificatio...

Page 8: ...25 17 VESA VGA O 4 640 480 37 861 72 80 31 50 VESA VGA O 5 640 480 37 500 75 00 31 50 VESA VGA O 6 800 600 35 156 56 25 36 00 VESA SVGA O 7 800 600 37 879 60 31 40 00 VESA SVGA O 8 800 600 48 077 72 18 50 00 VESA SVGA O 9 800 600 46 875 75 00 49 50 VESA SVGA O 10 1024 768 48 363 60 00 65 00 VESA XGA O 11 1024 768 56 476 70 06 75 00 VESA XGA O 12 1024 768 60 023 75 02 78 75 VESA XGA O 13 1280 768 4...

Page 9: ...8 47 720 59 799 84 750 CVT WXGA O 47 71 60 02 85 5 DTV 13 720 480 31 47 60 SDTV 480P 14 720 480 31 47 59 94 SDTV 480P 15 1280 720 45 00 60 00 HDTV 720P 16 1280 720 44 96 59 94 HDTV 720P 17 1920 1080 33 75 60 00 HDTV 1080I 18 1920 1080 33 72 59 94 HDTV 1080I 19 1920 1080 27 24 HDTV 1080P 20 1920 1080 33 75 30 HDTV 1080P No Item Content Remark 1 ProductDimension Width Length Height Unit Before Packi...

Page 10: ...t is possible to HEAT RUN the set without a separate signal generator in this mode Caution Care must be taken as afterimage phenomena may occur about the black level part of screen If leaving pause image turned on for more than 20 minutes especially inner digital pattern 13 CH Cross Hatch Pattern 09CH with significant black white contrast 3 EPLD Download 1 Test Equipment PC Jig for download 2 Conn...

Page 11: ...short cut icon 5 POD Certificate Download 5 1 Preparation for Adjustment 1 Connect the MEMORY JIG and PC 2 Turn on the JIG MAIN POWER SWITCH 3 After turn on the PC and MONITOR execute the Certificate Downloader v1 4 from the screen 5 2 Adjustment Sequence 1 After open the Certificate Downloader v1 4 enter Connection set and set the as same below The port settings are determined by each PC s setup ...

Page 12: ... TES3 Guide Data Discharge Equipment In case of without the VBI Inserter TES3 a VCR may be used 6 2 Preparation for Adjustments 1 In case of with VBI Inserter TES3 Signal uses Cable input and set as below 2 In case of without VBI Inserter TES3 VCR uses Cable input and set as below 6 3 Adjustment Confirmation Work 1 Turn on the TV and run Factory Test Program of PC Program only needs to run once re...

Page 13: ... 74 A3 57 4C B0 23 20 09 48 4C 2F CE 00 31 40 45 40 61 40 01 01 01 01 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 40 36 00 C4 8E 21 00 00 1E 0E 1F 00 80 51 00 1E 30 50 40 80 37 00 C4 8E 21 00 00 1C 00 00 00 FD 00 38 60 4B 1F 3C 09 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 34 37 4C 42 31 44 41 2D 55 42 0A 20 20 01 2A 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 02 03 16 F1 47 84 05 03 02 20 22 10 23 15...

Page 14: ...ervice R C to enter the Ez Adjust and select the 5 ADC 1080i Comp1 RGB Pressing the Enter Key to adjust with automatic movement 3 When the adjustment is over ADC Component1 Success is displayed If the adjustment has errors ADC Configuration Error is displayed 4 After the Component1 adjustment is over convert the RGB DTV Mode and display Pattern When the adjustment is over ADC RGB_DTV Success is di...

Page 15: ...for reduce color difference Main Sub screen of RF or Video signal 12 1 Adjustment 1 Connection the Video Signal Generator Master to the TV AV Input terminal After input pattern Model 201 NTSC M Pattern 33 100 color Bar pressing the Rev button and appear as below figure 2 After receive signal confirm the signal receiving And Enter the EZ ADJUST by pressing the ADJ Key on the Service R C Select 5 Vi...

Page 16: ...k the front AV To move channel up down or to select a function displayed on the screen To adjust the volume or accurately control a specific function To set a specific function or complete setting To move the channel down in the PIP screen To use as a red key in the teletext mode To move the channel in the PIP screen To use as a green key in the teletext mode To switch between the main and sub scr...

Page 17: ... 17 VIDEO TROUBLESHOOTING BLOCK DIAGRAM ...

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Page 36: ...or Dispatcher knows the new MAC ID and CableCARD ID to complete the installation The original card should be marked accordingly and returned for repair 6 Check the CableCARD menu options If the second CableCARD fails to bring up the User Interface screen the technician should refer to the diagnostic menus on the DCR for further troubleshooting The technician can pull up the User Interface screen m...

Page 37: ... as MMI screen and has relayed the information to the dispatcher but is still not receiving encrypted programming this programming may be protected through the use of copy protection directive Ensure that the information passed to dispatch is correct Relay again the Host ID CableCARD ID and Data ID Motorola only Dispatch will send a hit to the CableCARD once the information is checked and verified...

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Page 51: ... 51 EXPLODED VIEW 010 020 070 080 090 120 130 100 050 060 110 170 160 150 140 040 190 180 030 ...

Page 52: ...30366601 PCB Assembly Sub SUB T T LA61B 47LB1DA UB ALL DE INTERACE B D 6401900127F Speaker Assembly 47LB1 SIDE LEFT 400MM 6401900127E Speaker Assembly 47LB1 SIDE RIGHT 1900MM EAB30830301 Speaker Woofer K7040303 4 FERRITE 15W 8OHM 80DB 120HZ LUG EXA E C EAB30830301 Speaker Woofer K7040303 4 FERRITE 15W 8OHM 80DB 120HZ LUG EXA E C EBR30402901 PCB Assembly Sub SUB T T LA61B 47LB1DA UB ALL SIDE A V TO...

Page 53: ...F 20 16 C613 0CE106WFKDC MVK4 0TP16VC10M 10uF 20 16 C617 0CE106WFKDC MVK4 0TP16VC10M 10uF 20 16 C619 0CE106WFKDC MVK4 0TP16VC10M 10uF 20 16 C621 0CE106WFKDC MVK4 0TP16VC10M 10uF 20 16 C623 0CE106WFKDC MVK4 0TP16VC10M 10uF 20 16 C627 0CE476WF6DC MVK6 3TP16VC47M 47uF 20 16 C629 0CE476WF6DC MVK6 3TP16VC47M 47uF 20 16 C637 0CE106WFKDC MVK4 0TP16VC10M 10uF 20 16 C653 0CE106WFKDC MVK4 0TP16VC10M 10uF 20...

Page 54: ...4K500CT 100nF 10 50 C1378 0CK104CK56A 0603B104K500CT 100nF 10 50 C1379 0CK104CK56A 0603B104K500CT 100nF 10 50 DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C1380 0CK104CK56A 0603B104K500CT 100nF 10 50 C1381 0CK104CK56A 0603B104K500CT 100nF 10 50 C1382 0CK104CK56A 0603B104K500CT 100nF 10 50 C1383 0CK104CK56A 0603B104K500CT 100nF 10 50 C1384 0CK104CK56A 0603B104K500CT 100nF 10 50 C13...

Page 55: ...04K500CT 100nF 10 50 C424 0CK104CK56A 0603B104K500CT 100nF 10 50 C425 0CK104CK56A 0603B104K500CT 100nF 10 50 DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C426 0CK104CK56A 0603B104K500CT 100nF 10 50 C427 0CK104CK56A 0603B104K500CT 100nF 10 50 C428 0CK104CK56A 0603B104K500CT 100nF 10 50 C429 0CK104CK56A 0603B104K500CT 100nF 10 50 C430 0CK104CK56A 0603B104K500CT 100nF 10 50 C431 0CK1...

Page 56: ...4K500CT 100nF 10 50 C7037 0CK104CK56A 0603B104K500CT 100nF 10 50 C7038 0CK104CK56A 0603B104K500CT 100nF 10 50 DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C7039 0CK104CK56A 0603B104K500CT 100nF 10 50 C704 0CK104CK56A 0603B104K500CT 100nF 10 50 C7040 0CK104CK56A 0603B104K500CT 100nF 10 50 C7041 0CK104CK56A 0603B104K500CT 100nF 10 50 C7042 0CK104CK56A 0603B104K500CT 100nF 10 50 C704...

Page 57: ...CK56A 0603B103K500CT 10nF 10 50V C1003 0CC470CK41A C1608C0G1H470JT 47pF 5 50V DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C1013 0CC470CK41A C1608C0G1H470JT 47pF 5 50V C102 0CK104CK56A 0603B104K500CT 100nF 10 50 C1046 0CK103CK56A 0603B103K500CT 10nF 10 50V C1051 0CK103CK56A 0603B103K500CT 10nF 10 50V C1056 0CK104CK56A 0603B104K500CT 100nF 10 50 C1059 0CK104CK56A 0603B104K500CT 100...

Page 58: ...6 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION IC603 0IPRP00696A MST3361M LF 110 3 3V_2 5V 0 IC203 0IMCRCY002A CY2309SXC 1HT 3TO3 6V IC206 0IMCRPH026B PA9516APW 0 5TO7 0 0W 3 IC210 0IMCRCY002A CY2309SXC 1HT 3TO3 6V IC504 0IMCRCY002A CY2309SXC 1HT 3TO3 6V IC100 0IPRPBM001B PPC405GPR 3JB266C 1 7TO1 9V IC1101 0ISTL00024A MC14053BDR2G 3TO18V 0 02mA IC1202 0IMCRFA013A 74LCX244MTC 2TO3 6V 0 01mA ...

Page 59: ...1JT 120OHM 1 6X R244 6210TCE0013 HB 1M1608 121JT 120OHM 1 6X L1000 0LCML00020B MLI 201209 6R8K 6 8UH 10 0 L1001 0LCML00020B MLI 201209 6R8K 6 8UH 10 0 L1003 0LCML00020C MLI 201212 100K 10UH 10 L1005 0LCML00020C MLI 201212 100K 10UH 10 DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION L1304 0LCML00020B MLI 201209 6R8K 6 8UH 10 0 L1305 0LCML00020B MLI 201209 6R8K 6 8UH 10 0 L1306 0LCML00...

Page 60: ...473 47KOHM 5 1 10 R1126 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R1127 0RJ1002D677 MCR03EZPJ103 10KOHM 5 1 10 DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R1128 0RJ0332D677 MCR03EZPJ330 33OHM 5 1 10W R1129 0RJ0332D677 MCR03EZPJ330 33OHM 5 1 10W R1130 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R1131 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R1132 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R114 ...

Page 61: ...22OHM 5 1 10W R421 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R422 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R430 0RJ0752D677 MCR03EZPJ750 75OHM 5 1 10W R431 0RJ0752D677 MCR03EZPJ750 75OHM 5 1 10W R432 0RJ0752D677 MCR03EZPJ750 75OHM 5 1 10W R433 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R434 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R436 0RJ0222D677...

Page 62: ...R1120 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R1203 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R1207 0RJ5101D677 MCR03EZPJ512 5 1KOHM 5 1 1 R1208 0RJ3002D677 MCR03EZPJ303 30KOHM 5 1 10 R1209 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R1210 0RJ1004D677 MCR03EZPJ105 1MOHM 5 1 10W R1211 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R1214 0RJ0222D677 MCR03EZ...

Page 63: ...J3301D677 MCR03EZPJ332 3 3KOHM 5 1 1 R237 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R238 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R239 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R240 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R241 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R242 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R243 0RJ0000D677 MCR03EZPJ000 0OHM 5 1...

Page 64: ...03EZPJ472 4 7KOHM 5 1 1 R653 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R655 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R656 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R657 0RJ0332D677 MCR03EZPJ330 33OHM 5 1 10W R665 0RJ1101D677 MCR03EZPJ112 1 1KOHM 5 1 1 R666 0RJ0122D677 MCR03EZPJ120 12OHM 5 1 10W R667 0RJ0122D677 MCR03EZPJ120 12OHM 5 1 10W R668 0...

Page 65: ...K8 0TP16VC220M 220uF 20 C117 0CE227WF6DC MVK8 0TP16VC220M 220uF 20 C121 0CE225WK6DC MVK4 0TP50VC2 2M 2 2uF 20 C122 0CE225WK6DC MVK4 0TP50VC2 2M 2 2uF 20 C126 0CE105WK6DC MVK4 0TP50VC1M 1uF 20 50V C127 0CE105WK6DC MVK4 0TP50VC1M 1uF 20 50V C238 0CE226WF6DC MVK5 0TP16VC22M 22uF 20 16 C245 0CE335WK6D8 MVK4 0TP50VC3 3M 3 3uF 20 C247 0CE226WF6DC MVK5 0TP16VC22M 22uF 20 16 C263 0CE335WK6D8 MVK4 0TP50VC3...

Page 66: ...0CT 100nF 10 50 C403 0CK104CK56A 0603B104K500CT 100nF 10 50 C404 0CK104CK56A 0603B104K500CT 100nF 10 50 DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C406 0CC102CK41A C1608C0G1H102JT 1nF 5 50V C407 0CC101CK41A C1608C0G1H101JT 100pF 5 50 C409 0CK105CF94A 0603F105Z160CT 1uF 20TO 80 C410 0CK104CK56A 0603B104K500CT 100nF 10 50 C411 0CK104CK56A 0603B104K500CT 100nF 10 50 C413 0CK104CK56...

Page 67: ...ESCRIPTION SPECIFICATION L303 6140VB0004B LN 15A1 26uH AC500V 5MA 12X L304 6140VB0004B LN 15A1 26uH AC500V 5MA 12X L306 6140VB0004B LN 15A1 26uH AC500V 5MA 12X L408 61409B0008A DBF 1310S 10uH 13 5X10M L409 61409B0008A DBF 1310S 10uH 13 5X10M L410 61409B0008A DBF 1310S 10uH 13 5X10M L411 61409B0008A DBF 1310S 10uH 13 5X10M L301 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L305 6210TCE001G HH 1M3216 501J...

Page 68: ...03EZPJ474 470KOHM 5 1 1 DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R274 0RJ1501D677 MCR03EZPJ152 1 5KOHM 5 1 1 R275 0RJ1501D677 MCR03EZPJ152 1 5KOHM 5 1 1 R276 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R304 0RJ2202D677 MCR03EZPJ223 22KOHM 5 1 10 R308 0RJ5600D677 MCR03EZPJ561 560OHM 5 1 10 R310 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R311 0RJ2202D677 MCR03EZPJ223 22KOHM 5 1 10 R312 0RJ...

Page 69: ...R244 0RJ1001D677 MCR03EZPJ102 1KOHM 5 1 10W R245 0RJ1001D677 MCR03EZPJ102 1KOHM 5 1 10W DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R248 0RJ1001D677 MCR03EZPJ102 1KOHM 5 1 10W R249 0RJ2200D677 MCR03EZPJ221 220OHM 5 1 10 R250 0RJ2200D677 MCR03EZPJ221 220OHM 5 1 10 R251 0RJ2200D677 MCR03EZPJ221 220OHM 5 1 10 R252 0RJ2200D677 MCR03EZPJ221 220OHM 5 1 10 R253 0RJ2200D677 MCR03EZPJ221 ...

Page 70: ...7M 47uF 20 16 C490 0CE476WF6DC MVK6 3TP16VC47M 47uF 20 16 C491 0CE476WF6DC MVK6 3TP16VC47M 47uF 20 16 C492 0CE476WF6DC MVK6 3TP16VC47M 47uF 20 16 C493 0CE476WF6DC MVK6 3TP16VC47M 47uF 20 16 C151 0CK104CK56A 0603B104K500CT 100nF 10 50 C155 0CK104CK56A 0603B104K500CT 100nF 10 50 C167 0CK103CK56A 0603B103K500CT 10nF 10 50V C168 0CK104CK56A 0603B104K500CT 100nF 10 50 C171 0CK104CK56A 0603B104K500CT 10...

Page 71: ...104CK56A 0603B104K500CT 100nF 10 50 C310 0CK104CK56A 0603B104K500CT 100nF 10 50 C311 0CK104CK56A 0603B104K500CT 100nF 10 50 C312 0CK104CK56A 0603B104K500CT 100nF 10 50 C313 0CK104CK56A 0603B104K500CT 100nF 10 50 C403 0CK104CK56A 0603B104K500CT 100nF 10 50 C404 0CK104CK56A 0603B104K500CT 100nF 10 50 C405 0CK104CK56A 0603B104K500CT 100nF 10 50 C410 0CK104CK56A 0603B104K500CT 100nF 10 50 DATE 2006 10...

Page 72: ...1 10W R1119 0RJ0512D677 MCR03EZPJ510 51OHM 5 1 10W R1120 0RJ0512D677 MCR03EZPJ510 51OHM 5 1 10W DATE 2006 10 09 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R1121 0RJ0512D677 MCR03EZPJ510 51OHM 5 1 10W R1122 0RJ0512D677 MCR03EZPJ510 51OHM 5 1 10W R1123 0RJ0512D677 MCR03EZPJ510 51OHM 5 1 10W R1124 0RJ0512D677 MCR03EZPJ510 51OHM 5 1 10W R1125 0RJ0512D677 MCR03EZPJ510 51OHM 5 1 10W R1126 0RJ0512D677...

Page 73: ...R10EZHJ220 22OHM 5 1 8W R107 0RH0222D622 MCR10EZHJ220 22OHM 5 1 8W R108 0RH0222D622 MCR10EZHJ220 22OHM 5 1 8W R109 0RH0222D622 MCR10EZHJ220 22OHM 5 1 8W R110 0RH0222D622 MCR10EZHJ220 22OHM 5 1 8W R111 0RH0222D622 MCR10EZHJ220 22OHM 5 1 8W R112 0RH0222D622 MCR10EZHJ220 22OHM 5 1 8W R115 0RH0222D622 MCR10EZHJ220 22OHM 5 1 8W R116 0RH1001D622 MCR10EZHJ102 1KOHM 5 1 8W R117 0RH4701D622 MCR10EZHJ472 4 ...

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Page 79: ...Oct 2006 Printed in Korea P NO MFL30105552 ...

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