LG 52SZ8D, Service Manual

Page 1: ...HARGE from the electromaniacs com community You are free to distribute this file to other persons who needs it but without of charge Also on http electromaniacs com you can find thousands of service manuals schematics free of charge ...

Page 2: ...ERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NB 05ED MODEL 52SZ8D 52SZ8D UA CANADA http biz lgservice com USA http www lgservice com http lgservice com techsup html ...

Page 3: ... Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are 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 electricity 1 Immediately before handling any semiconductor component or semiconductor equipped...

Page 4: ...IPTION OF CONTROLS 4 SPECIFICATIONS 9 ADJUSTMENT INSTRUCTION 10 BLOCK DIAGRAM 18 EXPLODED VIEW 20 EXPLODED VIEW PARTS LIST 21 REPLACEMENT PARTS LIST 22 SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARDS TABLE OF CONTENTS ...

Page 5: ...a new lamp Contact your service center Red blinking There is a problem with the lamp or around it Contact an authorized service center Green blinking The lamp cover is not closed Orange The projection TV is overheating Check for blocked vents on the projection TV Red The projection TV shut down due to overheating Red blinking The projection TV shut down check the cooling fan Contact your service c...

Page 6: ...nput port RGB Input Connect the TV output connector from a PC DTV to the appro priate input port VARIABLE AUDIO OUT Used to connect either an external amplifier or add a sub woofer to your surround sound system COMPONENT INPUT 1 2 Connect a component video audio device to these jacks Refer to your DVD manual for further information VIDEO 1 or 2 Connects the video signals from various types of equi...

Page 7: ...r jackpack may be connect ed to the front connection panel To use the side jacks as the signal source select them using Main Input menu as described on page 23 They will be named Front Video in the Main Input menu If you input both Front Video and S Video only the S Video will work If you re connecting a video game device make sure to change the picture settings with the EZ Picture option in the V...

Page 8: ...nt video Component1 2 RGB HDMI1 DVI and HDMI2 input sources FAV Scrolls the Favorite channels INFO When you watch the TV information dis plays on top of the screen Not available in Component 1 2 RGB HDMI1 DVI and HDMI2 mode Refer to p 36 MUTE Switches the sound on or off Refer to p 37 ADJUST Adjusts screen position size and phase in RGB DTV PC mode VOLUME UP DOWN Increases decreases the sound leve...

Page 9: ...the factory preset picture depending on the viewing environ ment Remote Control Key Functions Remote Control Key Functions SLEEP SAP Selects MTS sound Mono Stereo and SAP in Analog mode Change the audio language in DTV mode CHANNEL UP DOWN Scrolls through available channels in EZ Scan memory FLASHBK Tunes to the last channel viewed PIPCH Changes to next higher PIP channel SWAP Exchanges the main s...

Page 10: ...quirement Television System Program Coverage Power Consumption W Antenna Audio Output W Supplied Accessories AC120V 60Hz NTSC M ATSC 64 256 QAM VHF 2 13 UHF 14 69 CATV 1 135 CADTV 1 135 DTV 2 69 210W 75 ohm External Terminal for VHF UHF 20Wx2 Remote Control 2 size AA batteries D sub 15 pin Cable 44SZ8D UA 39 9 29 2 14 4 57 3 52SZ8D UA 47 5 33 8 16 1 83 6 SPECIFICATIONS ...

Page 11: ...DJ key to exit 2 Initial Adjustment mode Menu is shown below Fig 1 3 As shown Fig 1 using the CH D CH E keys to select an item press the ENTER or VOLUME G keys to enter the appropriate item and begin adjustment 4 Change the value of adjustment by using the volume G volume F keys To change adjustment item use the CH D CH E keys in EZ ADJ Mode 5 Press the ADJ key to exit after adjustments 6 Preparat...

Page 12: ...iner when not being used or in transit 4 Wearing gloves will help prevent ESD damage and help preserve the physical condition of the DMD 5 All work should be performed in a static free environment 6 Use caution and remove any dust particles on the DMD front glass or back pins pads 5 2 Caution for DMD Cleaning 1 Use caution to prevent scratches to the DMD glass 2 When DMD glass stains with dust pol...

Page 13: ...and by pressing Function Key F8 5 When OK letter appear completed the Write 6 After connector the JIG for download to HDMI 2 2 port open the second file 44 52SZ8D UA HDMI2_V1_1 697B DVI and operate as same above method 7 CPLD Download Work 7 1 Required Test Equipments Preparation for Adjustment 1 Connect the PC and memory JIG as shown in Fig 8 2 Turn on JIG MAIN POWER SW 3 Turn on the PC and monit...

Page 14: ...ust Projection lens downward 3 When the horizontal line is tilting in the Cross Pattern Engine Base is rotating with the left right 8 2 Geometry Adjustment 1 When the screen is rotated Rotate the Engine to adjust 1 Distortion Type Tilt 2 Adjustment Method The adjustments will raise or lower the mount on the right or left side so the image will be level 2 In case of the upper screen size is large b...

Page 15: ...justment 1 Select V_position with CHANNEL key Initial V 15 2 Change data with using the VOLUME keys on the remote control in order to adjust up down screen semmetry 3 If symptom is out of adjustable range N G 9 4 After adjustment is completed recieve a NTSC M Digital Pattern and check the adjusment level 10 Component AD9883A Offset Gain Adjustment 10 1 Required Test Equipment Service Remote Contro...

Page 16: ...ation quantity of the Actuator Phase 0 Fix The Tartan plaid of the R G and B adjust is not visible But when the R G and B will not ballance adjust the R and G to acheve ballance 12 CWI NDC Adjustment Base value CWI 165 NDC 10 12 1 Required Test Equipment Service Remote control for Adjustment 12 2 Preparation for Adjustment 1 Connect power and turn the TV set on 2 Using the Remote Control enter by ...

Page 17: ...to adjustment program is practiced ccws exe 2 Measure Model is chosen in Work Select_Model cmf file 3 Check Cool Inspection Warm Inspection Medium Inspection box of left column in the main screen come to be checked If it was not checked Inspection is not practiced after doing measure 4 Color Coordinate Value 5 Click Auto Measure There is progress situation in the right Auto CCA Process Start measu...

Page 18: ...coordinate that are between command words per Mode being possible to correct a common difference Edit Model Edit 2 Port Edit CA 210 and RS 232C Connection setting about SET Edit Port Edit Fig 20 CCA Automatic Adjustment Program Main Screen Fig 21 CCA Automatic Adjustment Program Main Screen ...

Page 19: ... 18 BLOCK DIAGRAM ...

Page 20: ... 19 BLOCK DIAGRAM ...

Page 21: ...00 580 650 330 120 400 433 430 432 306 431 402 681 680 670 401 630 700 410 520 560 540 501 550 503 174 623 600 612 611 610 617 618 723 720 721 722 502 601 530 590 602 640 622 404 570 571 622 301 310 302 20 EXPLODED VIEW ...

Page 22: ...DU 44SZ80D M I 550 6871VSMZZAA PCB ASSEMBLY SUB DIGITAL M I NB05ED 44 52SZ8D UA ANALLAX SIMPLE BUILT IN 560 6871VSMANTA PCB ASSEMBLY SUB NB05ED DU 44SZ80D COMP M I 570 6871VSMANZA PCB ASSEMBLY SUB DMD NB05ED HD4 MAIN FOR 44SZ8D UA 571 3141VSNS77A CHASSIS ASSEMBLY SUB NB05ED HD4 DMD BOARD FOR 44SZ8D UA 580 6871VSME85A PCB ASSEMBLY SUB AUDIO MB042A DN 44SZ80L 590 6871VPMB16A PCB ASSEMBLY POWER SMPS ...

Page 23: ... 5P SOT323 5L MAX708SCSA 8P 74LX1G14CTR 5P SOT323 5L LOCA NO PART NO DESCRIPTION IC1 IC100 IC100 IC1000 IC1001 IC101 IC102 IC103 IC104 IC105 IC105 IC106 IC107 IC109 IC110 IC110 IC1102 IC1103 IC111 IC1200 IC1201 IC1204 IC1601 IC1602 IC1603 IC2 IC2 IC200 IC200 IC202 IC203 IC3 IC300 IC301 IC314 IC315 IC316 IC319 IC4 IC400 IC401 IC402 IC403 IC404 IC404 IC406 0IPRPTO002A 0IMCRSS016A 0IPMGON013B 0IMI623...

Page 24: ...EC CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC KRA102S SOT23 CHIP TR CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC LOCA NO PART NO DESCRIPTION Q212 Q216 Q400 Q401 Q402 Q600 Q601 Q602 Q602 Q603 Q603 Q604 Q604 Q605 Q606 Q607 Q608 Q702 Q800 Q801 Q801 Q802 Q802 Q852 D1 D1 D100 D100 D100 D2 D20...

Page 25: ...0 0 1UF 1608 16V 10 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C1109 C111 C1110 C1111 C1112 C1113 C1114 C1115 C1116 C112 C112 C1120 C1121 C1122 C1123 C1124 C1125 C1126 C1127 C1128 C1129 C113 C1130 C1131 C1132 C1133 C1134 C1135 C1136 C1137 C1138 C1139 C114 C1140 C1141 C1142 C1143 C1144 C1145 C1146 C1147 C1148 C1149 C1150 C1151 C1152 C1153 C1154 C1155 C1156 C1157 0CE106SF6DC 0CE476DD618 0CE106SF6...

Page 26: ...0 10UF MVG 16V 20 22UF MVG 16V 20 10UF MVG 16V 20 22UF MVG 16V 20 LOCA NO PART NO DESCRIPTION C1305 C1307 C1309 C131 C1310 C132 C1325 C1326 C1327 C1328 C1337 C1338 C1339 C134 C1340 C1341 C1342 C1343 C1344 C140 C144 C145 C147 C147 C149 C149 C15 C154 C1634 C1641 C1643 C1644 C1646 C1650 C1651 C1652 C1653 C1657 C166 C1666 C1669 C1671 C1675 C1677 C1679 C168 C168 C1681 C1686 C1687 C1688 0CK104CF56A 0CE2...

Page 27: ...STD 50V 20 0 1UF 1608 16V 10 470UF STD 35V 20 220UF STD 16V M 1UF 2012 16V 20 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C228 C229 C229 C23 C230 C231 C231 C232 C233 C24 C242 C246 C247 C248 C249 C2604 C2605 C27 C3 C301 C302 C3102 C3103 C3105 C3106 C3108 C312 C313 C314 C315 C331 C339 C340 C349 C370 C371 C384 C385 C386 C393 C394 C4 C400 C402 C403 C404 C405 C406 C406 C407 C407 0CK104CF56A 0CK104CF5...

Page 28: ... 10 10UF MVG 16V 20 10UF MVG 16V 20 10UF MVG 16V 20 10UF MVG 16V 20 3 3UF MVG 50V 20 LOCA NO PART NO DESCRIPTION C605 C606 C606 C607 C608 C609 C610 C611 C612 C613 C614 C615 C616 C616 C617 C618 C619 C620 C621 C621 C622 C622 C623 C624 C625 C626 C627 C628 C628 C629 C630 C630 C631 C631 C632 C633 C634 C635 C636 C637 C637 C638 C639 C639 C640 C641 C642 C643 C643 C643 C644 0CE106SF6DC 0CE106SF6DC 0CE107DF...

Page 29: ...20 0 1UF 1608 16V 10 100UF STD 10V M 0 1UF 1608 16V 10 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C719 C720 C720 C721 C722 C722 C723 C724 C725 C726 C727 C728 C729 C730 C731 C732 C733 C734 C735 C736 C737 C738 C739 C740 C741 C742 C743 C744 C745 C745 C746 C747 C747 C748 C749 C749 C750 C751 C751 C751 C752 C753 C753 C754 C755 C755 C755 C756 C757 C758 C758 0CE227BF618 0CK104CF56A 0CE227DH618 0CK104CF...

Page 30: ...10 1000PF D 2KV 10 0 1UF 1608 16V 10 47UF STD 50V M 68PF 1608 50V 5 47UF STD 50V M 0 1UF D 50V 80 20 LOCA NO PART NO DESCRIPTION C809 C810 C810 C811 C811 C812 C812 C813 C813 C814 C815 C815 C816 C817 C818 C819 C820 C821 C822 C823 C824 C825 C826 C827 C827 C828 C829 C830 C831 C831 C831 C832 C833 C833 C833 C834 C834 C835 C835 C836 C837 C837 C838 C839 C839 C840 C841 C841 C841 C842 C842 0CC680CK41A 181 ...

Page 31: ...16V 10 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C951 C952 C957 C958 C959 C960 C963 C964 C965 C966 C967 C968 C969 C970 C971 C972 C973 C974 C975 C976 C981 C982 C989 C990 J4 J5 L1 L100 L105 L106 L107 L108 L403 L831 L841 L881 L891 L903 L904 T830 C10 C11 C12 C13 C14 C15 C16 0CE335SK6DC 0CE335SK6DC 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK272CK46A 0CK472CK56A 0CK27...

Page 32: ...CK DIN 74320 3004 30PIN 4 7K OHM 1 16 W 1608 5 4 7K OHM 1 16 W 1608 5 22 OHM 1 16 W 1608 5 22 OHM 1 16 W 1608 5 22 OHM 1 16 W 1608 5 22 OHM 1 16 W 1608 5 22 OHM 1 16 W 1608 5 LOCA NO PART NO DESCRIPTION AR1905 AR302 AR303 AR406 AR407 AR408 AR409 AR410 AR611 AR612 AR613 AR614 AR615 AR616 AR617 AR618 AR619 AR800 AR801 AR802 AR803 AR804 AR805 R1 R1286 R2 R3 R4 R5 R773 R800 R801 R802 R802 R804 R805 R8...

Page 33: ...T513 T514 T515 X1 X100 X1202 X1203 X300 X600 X602 X800 C1 C2 C21 F800 IC1 IC101 IC102 IC312 IC704 L1 L2 L3 L4 PA1 TH801 TH802 TU104 VA600 VA601 VA602 VA603 0LCML00003B 0LCML00004A 0LCML00003B 0LCML00003B 0LCML00003B 0LCML00003B 0LCML00003B 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 6200VJT006A 156 ...

Page 34: ...F 6710V00102V 6850TD9007E VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR AVRL161A1R1NT VARISTOR SVC621D 14A 620V 0 OSCILLATOR BMS 873R 25MHZ MANUAL 44 52SZ8D UA REMOTE CONTROLLER NB05ED...

Page 35: ...nted in Korea P NO 3828VD0222J CANADA LG Electronics Canada Inc 550 Matheson Boulevard East Mississauga Ontario L4Z 4G3 USA LG Electronics Alabama Inc P O Box 240007 201 James Record Road Bldg 3 Huntsville AL 35824 ...

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Page 41: ...RIVER BOTTOM TUNER TOP TUNER BOTTOM AC INPUT POWER AUDIO TOP AUDIO BOTTOM CONTROL TOP CONTROL BOTTOM AUDIO TOP AUDIO BOTTOM SIDE A V CASE DET PRE AMP HD3 DLP SENSOR TOP HD3 DLP SENSOR BOTTOM INTERFACE DIGITAL TOP DIGITAL BOTTOM ...