LG 44/52SZ8R, Service Manual

Page 1: ...ection TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MB 05DA MODEL 44 52SZ8R MODEL 44 52SZ8R ZA website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...3 SERVICING PRECAUTIONS 4 CONTROL DESCRIPTIONS 6 SPECIFICATIONS 10 ADJUSTMENT INSTRUCTIONS 18 BLOCK DIAGRAM 26 EXPLODED VIEW 32 34 EXPLODED VIEW PARTS LIST 33 35 REPLACEMENT PARTS LIST 36 REPLACEMENT THE LAMP 46 SVC SHEET PRINTED CIRCUIT BOARD ...

Page 3: ...tc to be sure the set is safe 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...

Page 4: ...re integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity 1 Immediately before handling any semiconductor component or semiconductor equipped assembly drain off any electrostatic charge on your body by touching a known earth ground Alterna...

Page 5: ... the corresponding lead on the circuit board 4 Securely crimp each connection and solder it 5 Inspect on the circuit board copper side 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...

Page 6: ...sub picture to D E or F G direction 6 SWAP returns to the previously viewed programme selects a favorite programme 7 MENU selects a menu 8 D E Programme Up Down selects a programme or a menu item switches the set on from standby F G Volume Down Up adjusts the volume adjusts menu settings OK accepts your selection or displays the current mode 9 NUMBER BUTTONS switches the set on from standby or dir...

Page 7: ...ttons are used for teletext function Battery installation The remote control handset is powered by two AAA type batteries To load the batteries turn the remote control handset over and open the battery compartment Install two batteries as indicated by the polarity symbols and marked inside the compartment Note To avoid damage from possible battery leakage remove the batteries if you do not plan to...

Page 8: ...ON INDICATOR Refer to p 7 8 LAMP INDICATOR Refer to p 7 9 TEMPERATURE INDICATOR Refer to p 7 10 MAIN POWER ON OFF switches the set on or off Note There might be a faint white trace on the center of the screen according to the position This is normal and is a characteristic of the screen Front panel ON OFF TV AV MENU OK VOL PR TV AV MENU OK VOL PR 1 2 3 4 5 6 7 8 9 10 Lamp indicator operation indic...

Page 9: ... On Orange flashing Preparing operation in standby Orange Projection lamp is reaching the end of its life and needs to be replaced with a new lamp Red flashing There is a problem with the lamp or around it Contact an authorized service center Red Lamp life over Green flashing The lamp cover is not closed Red The set has shut down due to overheating After viewing the phrase Thermal High Error Red f...

Page 10: ...tage of each products is marked by model 4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 20 minutes prior to the adjustment V Test Method 1 performance LGE TV test method followed 2 Demanded other specification Safety CB specification EMC CE specification 10 Chassis MB 05DA 44 ...

Page 11: ...1 E69 CATV S01 S20 HYPER S21 S41 Upper Heterodyne PAL SECAM NTSC SCART1 Full AV1 TV out SCART2 Half AV2 Monitor out SCART3 Half AV3 Side AV AV4 S Video1 PAL SECAM NTSC PAL SECAM NTSC Y Pb Pr RGB PC DTV HDMI PC DTV PC Audio 1EA Component 2EA AV 1EA Discrete IR V Model Specification No Item Remark 1 2 3 4 5 6 7 8 9 10 11 12 LGE SPEC Aspect Ratio Operating Environment Storage Environment Input Voltag...

Page 12: ...lume Programme User Setting On Off On Off On Left arrow Vol Key Off Exit Key RGB PC RF AV Component 480i 480p 576i 576p Spectacle Full Original 4 3 16 9 14 9 Zoom Component DTV RGB DTV 4 3 16 9 Zoom RGB PC HDMI 4 3 16 9 2 Tuner PAL BG I DK SECAM BG DK CVBS L R S VHS S VHS Priority CVBS L R 480i 576i 480p 576p 720p 1080i RGB PC Up to XGA 85Hz RGB DTV 480p 576p 720p 1080i HDMI TV Up to XGA 85Hz HDMI...

Page 13: ...W2 Off 100 300 Audio Mute Sleep Time 10 240 Min Channel List SIF Control O Text mode Yellow Key Favorite Favorite Favorite off Q view Pip Twin Main Sub Swap TV AV1 AV2 SAV2 AV3 AV4 COMPONENT1 COMPONENT2 RGB HDMI DVI SRS TSXT Flat Music Movie Speech User Dynamic Standard Mild User POWER Numeric 0 9 PR ARC PRD E VOLF G Mute PIP Input PIP PRD E O O O O No Item Specification Remark 10 11 12 13 Manual ...

Page 14: ...rms Vrms kHz No Item Specification Min Typ Max Unit Remark V External Interface Normal 220V Normal 220V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Power ON OFF operation Staring Voltage Staring Voltage 10 Degree DC Voltage Ballast DC Voltage 5V STBY DC Voltage 3 3V STBY DC Voltage 2 5V STBY DC Voltage 1 8V STBY DC Voltage Tuning Voltage DC Voltage DLP Driver 3 5V DC Voltage DLP Driver 2 5V DC Voltage DLP...

Page 15: ...3 500 13 514 13 500 27 000 27 027 27 000 74 176 74 250 74 250 74 176 74 250 74 250 No V Component Video Input Y PB PR Proposed Specification Resolution H freq kHz V freq Hz Pixel clock SDTV 480P SDTV 480P SDTV 576P HDTV 720P HDTV 720P HDTV 720P 50Hz HDTV 1080I HDTV 1080I HDTV 1080I 50Hz 1 2 3 4 5 6 7 8 9 720 480 720 480 720x576 1280x720 1280x720 1280x720 1920 1080 1920 1080 1920 1080 31 47 31 50 3...

Page 16: ...ion on after checking over Mod 0 Slow LGE Vo 1 Curve 1 Fast Vol Curve 0 ACting followed SIF I II 1 Always Meno 1 TTX 0 150 0 Phone Jack 1 Scart Jack English France German Spanish Italian Chinese Russian EU5 Default Lang 5 Non EU7 Default Lang 7 0 West Europe 1 East EU1 2 Turkey 3 East EU2 Czecho Hungary 4 Cyrillic1 5 Cyrillic2 6 Cyrillic3 1 2 3 4 5 Area Code OPTION1 Tuner opt OPTION2 Audio opt OPT...

Page 17: ...wap Key 6 OPTION5 ETC opt INDEX Navigation Key Favorite Key No Item Specification Description Remark No V Lamp Temp IN START for adjustment Remote Controller Lamp Temp 1 2 3 4 5 6 Lamp Life Time khr Lamp use Time hr Lamp Current Temp Lamp Warn Temp Lamp Error Temp Off On Waiting sec The length of time that lamp is alive to capacity The length of time that lamp is used up to now Warm below Warn Tem...

Page 18: ...djust with using CH D D CH E E key above screen and press Enter key Fig 1 4 After entering into ADJ Mode list using CH D CH E key after choosing an adjustment list one more time adjustment value is changed by using ENTER Key 5 Press the ADJ key to come out after adjustment 6 Preparation for Adjustment 1 Connect the power to TV Set and set the status of Power on 2 Heat Run must operate over 5 minut...

Page 19: ... to wear wrist strap that connect to ground 3 Electric workshop and an electric conductor surface connect to ground 4 Save the DMD after removement a static electricity Keep it at an exclusive case when moving it When grounding open the case 5 Put on gloves that to prevent static electricity If it s old replace it 6 The work is done at the electro static free location Attach the tape or remove dus...

Page 20: ...ady refer to Fig 9 3 Set the Write Batch c LGIDS files CH_Memory_RT LGEAP nvm NVRAM File c LGIDS files CH_RT LGEAP bin and then press the Download button 4 After finishing the channel memory check the PASS refer to Fig10 3 Hudson Down load 1 Select the columbus2 as Model name check that connection of the communication Box is OK If NG you can change PORT to com 1 2 3 2 Connect the RS232 cable and t...

Page 21: ...otated Rotate all Engine a Distortion Type Tilt b Adjustment Method Rotate the Engine Base on the right or left side so line of the Cross pattern will be level 2 In case of the upper screen size is large bottom screen size than upward projector a Distortion Type Keystone b Adjustment Method Raise the front panel as looking downward the projection lens and then bottom screen size is large so the im...

Page 22: ...ter the adjustment items auto atonally In menus enter the Auto Color Balance G To Set and press the button to complete and then display the OK OSD message 4 When Component1 adjustment is completed turn to the RGB 5 Press Adjust key on the remote control to enter the adjustment mode after receive the PC XGA 60Hz Pattern Vertical 16 Gray Pattern of MSPG 925FS Fig 15 6 In adjustment items enter the A...

Page 23: ...n and the point bottom color purity comes to be uniform from the RED Pattern is same 3 4 step with value Green color disappears from the Ramp Pattern 3 Using CH UP DOWN key of the Remote Control enter the RED PATTERN 4 Check the RED Pattern Fig 19 to uniform After checking unless abnormality do OK 4 NDC Adjustment For compensation deviation of each Lamp uses NDC Mode Sees the Pattern and adjust le...

Page 24: ...1 Model Edit Interval time and Target White coordinate that are between command words per Mode being possible to correct a common difference Fig 17 2 Port Edit CA 210 and RS 232C Connection setting about SET Fig 23 To be impossible auto adjustment manual adjustment 1 Entry become to IN START Optics Check order using the adjustment remote controller 2 Color coordinates x y L of White is measured ch...

Page 25: ... 26 27 28 29 30 31 32 Off BG V UHF 1 C1 45 25Mhz 1 On 28EA Channel Dynamic 95 50 50 50 0 Off Flat Off Center Center Off Off TV On TV Off Off 16 9 30 Off Right Bottom English Small 1 16 ON Normal Item Power System Band Channel Name Storage Booster Channel Memory PICTURE PSM Contrast Brightness Color Sharpness Tint Cinema SSM AVL Balance Equalizer Auto Sleep Sleep Timer Main Input PIP Input Child Lo...

Page 26: ... 26 BLOCK DIAGRAM ...

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Page 32: ...D VIEW 44 304 303 305 121 300 690 520 501 301 310 302 650 691 120 400 430 401 402 681 680 670 630 700 410 503 600 174 612 611 610 617 618 616 720 615 502 601 530 590 602 640 580 570 571 620 432 431 540 641 621 581 ...

Page 33: ...NG DC AXIAL 6V 90MM 1700RPM 3P 850MM IC LA6583M 581 4980V00E80B 4980V00E80B SUPPORTER SECC EGI NEW DMD FAN SUPPORTER HD3 PRESS 590 68719PM008A 68719PM001A PWB PCB ASSEMBLY POWER POWER M I 52SZ8R ZA POWER HAND PLANNER AC INPUT M I 600 3141VSNH18W 3141VSNH18W CHASSIS ASSEMBLY SUB MB05DA HD4 SUB ENGINE ASSY 52SZ8R ZA APPLICATION OLD CONDENSING LENS 601 4980V00C01C 4980V00C01D SUPPORTER SMPS EGI RU 44...

Page 34: ...VIEW 52 304 303 305 121 300 690 520 501 301 310 302 650 691 120 400 430 401 402 681 680 670 630 700 410 503 600 174 612 611 610 617 618 616 720 615 502 601 530 590 602 640 570 571 620 432 431 540 641 306 621 580 581 ...

Page 35: ...FAN G9232S06B2 AA DONGYANG DC AXIAL 6V 90MM 1700RPM 3P 850MM IC LA6583M 581 4980V00E80B 4980V00E80B SUPPORTER SECC EGI NEW DMD FAN SUPPORTER HD3 PRESS 590 68719PM008A 68719PM001A PWB PCB ASSEMBLY POWER POWER M I 52SZ8R ZA POWER HAND PLANNER AC INPUT M I 600 3141VSNH18W 3141VSNH18W CHASSIS ASSEMBLY SUB MB05DA HD4 SUB ENGINE ASSY 52SZ8R ZA APPLICATION OLD CONDENSING LENS 601 4980V00C01C 4980V00C01D ...

Page 36: ...EC LOCA NO PART NO DESCRIPTION D1101 IC1 IC100 IC1000 IC1001 IC101 IC102 IC106 IC11 IC1102 IC1103 IC12 IC13 IC133 IC15 IC168 IC169 IC170 IC176 IC177 IC178 IC199 IC2 IC20 IC213 IC214 IC217 IC218 IC22 IC220 IC225 IC228 IC230 IC234 IC401 IC500 IC501 IC503 IC504 IC581 IC582 IC583 IC59 IC60 IC700 IC701 IC702 IC705 IC800 0IKE431000D 0IPRPTO002A 0ISO206900A 0IMI623200B 0IMI623200B 0IMCRSG010A 0IMCRTI003A...

Page 37: ...8 D581 D610 D801 D831 D832 D834 D835 D840 D851 D861 D871 D881 D891 D909 D910 D912 D913 D914 D915 Q801 ZD01 ZD1 ZD10 ZD2 ZD3 ZD4 ZD5 ZD6 ZD839 ZD9 D1 D2 D3 C1 C10 C1002 C1037 C1038 0DS113379BA 0DS113379BA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DRON00088A 0DZVH00118A 0DRSD00050B 0DD100009AU 0DD100009AU 0DR010009AA 0DD414809ED 0DD414809ED 0DD2...

Page 38: ...0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R LOCA NO PART NO DESCRIPTION C1155 C1156 C1157 C1158 C1159 C1160 C1161 C1161 C1162 C1163 C1163 C1164 C1165 C1166 C1167 C1168 C1169 C1170 C1171 C1172 C1174 C1175 C1178 C1182 C1189 C1191 ...

Page 39: ...PTION C443 C445 C446 C447 C448 C449 C450 C452 C454 C455 C456 C481 C482 C515 C517 C519 C523 C528 C530 C531 C531 C533 C535 C556 C569 C575 C576 C580 C582 C584 C586 C587 C590 C598 C609 C610 C611 C612 C614 C615 C616 C617 C618 C619 C620 C621 C622 C623 C624 C625 0CE226SF6DC 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CE226SF6DC ...

Page 40: ...7R LOCA NO PART NO DESCRIPTION C723 C724 C725 C726 C727 C728 C728 C729 C730 C731 C732 C733 C734 C735 C736 C737 C738 C739 C740 C741 C742 C743 C744 C745 C746 C747 C748 C749 C750 C751 C752 C753 C754 C755 C756 C757 C758 C759 C760 C761 C762 C763 C764 C765 C766 C767 C768 C769 C770 C771 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CE227SC6DC 0CK104CF56A 0CK104CF56A 0CK104CF56A...

Page 41: ...0PF 1608 50V 0 5 PF R TP NP0 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 68PF 1608 50V 5 R TP NP0 CE 450V 220UF M LUG 105 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R LOCA NO PART NO DESCRIPTION 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CC471CK41A 0CE476BK618 0CK104CF56A 0CE107BJ618 0CK104CF56A 0CC1000K115 0CK1040K945 0CK104CF56A ...

Page 42: ...10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 0 1UF 1608 16V 10 R TP X7R 2700PF 1608 50V 5 X7R R TP LOCA NO PART NO DESCRIPTION C966 C967 C968 C970 C971 C972 C973 C974 C975 C976 C977 C977 C978 C978 C979 C980 C981 C982 C983 C984 C985 C988 C999 R1204 L183 L215 L217 L220 L222 L861 L871 L881 L891 L903 L904 J4 J5 L1 T801 T830 C1 C2 C3 C4 C5 C6 0CK472CK56A 0CK272CK46A 0CK224DH56A 0CK...

Page 43: ...1 4 W 1 TA52 510K OHM 1 4 W 1 TA52 22K OHM 1 6 W 5 TA52 56K OHM 1 6 W 5 TA52 LOCA NO PART NO DESCRIPTION R820 R821 R823 R824 R831 R832 R833 R834 R835 R836 R837 R838 R839 R840 R841 R842 R843 R844 R845 R850 R851 R852 R853 R854 R855 R856 R857 R865 R866 R867 R868 R872 R873 R874 R875 R876 R877 R891 R892 R893 R894 R895 R896 R897 R898 R899 X1 X2 X3 X5 0RD0102F609 0RD1003F609 180 A01P 0RD2202F609 0RD0272A...

Page 44: ... L802 L803 L901 L902 L906 L908 L909 L910 L911 L912 L913 T501 T502 T504 T509 T511 T512 T513 T514 T515 T520 T601 T602 T603 T604 JA101 JA102 JA103 JA106 6200VJT006A 0LCML00003B 0LCML00003B 6210VC0006A 6210VC0006A 6200JB8010L 6200JB8010L 6200JB8010L 6200JB8010L 6210VC0006A 6210VC0006A 0LCML00003B 0LCML00003B 0LCML00003B 0LCML00004A 0LCML00004A 0LCML00003B 0LCML00004A 6200JB8012T 6200JB8012T 150 F06U 0...

Page 45: ... ASSEMBLY PMJ016B A V DIN DC1R019NDA JAE 1 0MM DIN 74320 3004 MOLEX DVI INTERACED MANUALMB05DA UK WTY LG EN 136G TX REMOTE CONTROLLERMB03CC TXT CABLE COAXIALCOAXIAL 150MM CABLE DVI SKD FUSE SLOW BLOW5000MA 250V 5 2X20 OSCILLATOR SCO 103 SUNNY 100MHZ REMOTE CONTROLLER RECEIVER SOLDER SOLDERINGD1 20 SN60A THERMISTOR NTCKL15L2R5 SSANSHIN THERMISTOR NTCKL15L2R5 SSANSHIN TUNER TAUM W201D MULTI FS DIN M...

Page 46: ... out the lamp only when replacing the lamp Keep the lamp unit out of reach of children or and heat sources such as radiators stoves To reduce the risk of fire lamp shall not be exposed to liquids or foriegn material Do not place the lamp near any heat source Make sure the new lamp is securely tightened with screws If not the image may be dark or there could be a risk of fire Never touch the lamp u...

Page 47: ...r and tighten the cover screws If the lamp cover is open the lamp indicator flashes green and the TV will not turn on Note Only use LG approved lamp replacement Using incorrect type of lamp may cause damage to the TV or lamp Make sure the lamp cover is securely fastened If the lamp cover is open the TV will not turn on You must reset lamp time on the menu after replacing the lamp In some models th...

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Page 51: ...OARD MAIN TOP MAIN BOTTOM DLP DRIVER TOP DLP DRIVER BOTTOM SMPS CONTROL TOP CONTROL BOTTOM JACK TOP JACK BOTTOM SENSOR B D TOP SENSOR B D BOTTOM INTERFACE SIDE A V PRE AMP POWER S W CASE DET TOP CASE DET BOTTOM AC INPUT ...

Page 52: ...Aug 2005 Printed in Korea P NO 3828VD0216A ...