LG DU-52SZ61D, Service Manual

Page 1: ...V SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NB 04AA MODEL DU 52SZ61D CANADA http biz lgservice com USA http www lgservice com http lgservice com techsup html ...

Page 2: ...ngs Place the AC switch in the on positioin 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 return path to the chassis the measured resistance should be between 1MΩ and 5 2MΩ When the exposed metal has no return path to the chassis the...

Page 3: ...ICATIONS 4 DESCRIPTION OF CONTROLS 5 ADJUSTMENT INSTRUCTION 8 PRINTED CIRCUIT BOARDS 21 BLOCK DIAGRAM 31 EXPLODED VIEW 32 EXPLODED VIEW PARTS LIST 33 REPLACEMENT PARTS LIST 34 SCHEMATIC DIAGRAM TABLE OF CONTENTS ...

Page 4: ... without prior notice for quality improvement MODELS AC120V 60Hz NTSC M ATSC VHF 2 13 UHF 14 69 CATV 1 135 CADTV 1 135 DTV 2 69 75 Ω Power requirement Television System Program Coverage External Antenna Impedance DU 52SZ51D DU 52SZ61D SPECIFICATIONS ...

Page 5: ...p Contact your service center Red flashing There is a problem with the lamp or around it Contact an authorized service center Green flashing The lamp cover is not closed Orange The projection TV is overheating Check the blocked vents of the Projection TV and the accumulated dust in the dust filter Red The projection TV shut down due to overheating Red flashing The projection TV shut down check the...

Page 6: ...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 informa tion VIDEO 1 or 2 Connects the video sig nals from various types of equipment Left Right AUDIO Used for stereo sound from various types of equipment HDMI DVI VIDEO Connect a HDMI DVI Video signa...

Page 7: ...g or unlocking in the Listing Grid PIPCH PIPCH Changes to next higher lower PIP channel PIP INPUT Selects the input source for the sub picture SWAP Exchanges the main sub images in PIP Twin picture mode DAY DAY Moves forward or backward in 24 hour increments in the Listings Grid LIGHT Illuminates the remote control buttons TV VIDEO Selects Antenna Cable Video1 2 Front Video Component 1 2 RGB DTV o...

Page 8: ...may also be possible in unavoidable cases 3 Composition of Adjustment Mode 1 Adjustment modes are entered by pressing the ADJ key on the Service Remote Control after adjustments press the ADJ 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 ...

Page 9: ...inator are out of joint Loosen the screw Lower right illuminator are out of joint Check the spot phenomenon such as Light tunnel exit on the edge of the white screen as shown Fig 5 2 After adjusting the illuminator adjust the focus by using the focus adjustment screw of projection lens After adjusting fasten the screw tighty and secure with sealer Note The focus check point is not the screen cente...

Page 10: ...on can damage the DMD 7 EDID HDMI Data Input 7 1 Required Test Equipment 1 Jig for adjusting PC DDC PC serial to D sub connection device 2 S W for writing DDC EDID data write read 3 D sub terminal 4 Jig for connecting EDID HDMI Cable 7 2 Adjustment Preparation and Setting of Device 1 Setup as in Fig 9 and turn on the PC JIG 2 Operate the S W for writing DDC EDID data write read operated in DOS mod...

Page 11: ...Adjustment Sequence 1 Once the program is executed select the MPLAB ICD2 from Programmer Select Programmer 2 Select Configure Select Device 3 When the Select Device window appears select the PIC18F1220 from Device and press OK 4 Select Programmer Connect When connected with the Micom the display message on the Output window appears as below Fig 12 13V CN1201 IC1204 VIB Micom 5V GND Data Clock Digi...

Page 12: ... 1 As shown below connect the MPLAB ICD2 equipment PC and Digital Connector 2 Turn on the MPLAB ICD2 POWER Supply 3 After turning on the PC and MONITOR select MPLAB IDE from the screen 10 2 Adjustment Sequence 1 When the program is executed select MPLAB ICD2 from Programmer Select Programmer 2 Select Configure Select Device 3 When the Select Device window appears select PIC18F242 from Device and p...

Page 13: ... JIG and PC 2 Turn on the JIG MAIN POWER SWITCH 3 After turning on the PC and MONITOR execute the Certificate Downloader v1 4 from the screen 11 2 Adjustment Sequence 1 After opening the Certificate Downloader v1 4 enter Connection set and set the as same below The port settings are determined by each PC s setup 2 Select Connection and SET connected to RS 232C 3 After clicking Enter confirm that E...

Page 14: ...leted click CP Data Download OK When CP Data Download OK does not appear certificate has not Download correctly SET is rebooted and certificate Download work must be repeated 8 Now you may begin IEEE1394 DTCP Download work Select the DTCP dat file by pressing the DTCP File Open button 9 After opening the DTCP dat file confirm the key list in the DTCP Key List window 10 Select the desired item of D...

Page 15: ...is not available a VCR may be used 12 2 Preparation for Adjustments 1 When using VBI Inserter TES3 Signal uses Cable input and set as below 2 When not using VBI Inserter TES3 VCR uses Cable input and set as below Factory Test S W must be set to GLinkTo PC Card ON 12 3 Adjustment Confirmation Work 1 Turn on the TV and run Factory Test Program of PC Program only needs to run once regardless of set q...

Page 16: ... from screen using EYE Key on the Service Remote Control 14 3 Adjustment 1 After Engine to be completely affixed in the adjustment Knob pillar from TV front sees camera sheds light TV Screen and Keystone Tilt confirm from back side 2 Keystone adjust moving to upper lower with Top Bottom adjustment BOLT and Tilt adjust moving to left right with Engine Base 3 Both sides Adjustment Knob and Top Mirro...

Page 17: ...right and fix the horizontality horizontal line of Cross Pattern 2 In case of the upper screen size is large bottom screen size than upward projector 1 Badness Type Keystone Badness 2 Adjustment Method The Engine Base front part raises at upper direction and projection lens to be downward projector Bottom screen size a lot fix the top bottom screen size to be same as 3 In case of the upper screen ...

Page 18: ...on the remote control in order to adjust up downscreen semmetry 3 If symptom is out of adjustable range N G 16 Component AD9883A Offset Gain Adjustment 16 1 Required Test Equipment Service Remote Control 801GF 802F Pattern Generator 16 2 Preparation for Adjustment 1 Connect power and turn TV set on 2 Perform Heat Run for at least 5 minutes 3 Select Component Input 4 Receive the 720P 60Hz HozTVBar ...

Page 19: ...s 200Level Spoke Func 0 R G B offset Fix to 20 without MODE 18 CWI Adjustment 18 1 Required Test Equipments Service Remote Control 18 2 Preparation for Adjustment 1 Connect power and turn the TV set on 2 Using the remote control enter from ADJUST to CWI Base value 160 18 3 Adjustment 1 Using the Volume key adjust CWI to the left right 2 As adjustment check the appearance noise in the TEST Pattern ...

Page 20: ...ent menu using CH keys and adjust using VOL keys Initial data 32 2 Sub Screen Adjustment 1 Select the VPX3226 by pressing ADJ key on the Service Remote Control 2 Select Contrast s of adjustment item using CH keys and adjust using VOL keys Initial data 32 19 3 Overseas Factory Production Contrast Adjustment Method Adjust which it sees last prosecuting attorney time the screen contrast difference 1 ...

Page 21: ... 21 PRINTED CIRCUIT BOARD MAIN TOP ...

Page 22: ... 22 PRINTED CIRCUIT BOARD MAIN BOTTOM ...

Page 23: ... 23 PRINTED CIRCUIT BOARD TUNER TOP ...

Page 24: ... 24 PRINTED CIRCUIT BOARD TUNER BOTTOM ...

Page 25: ... 25 PRINTED CIRCUIT BOARD DIGITAL TOP ...

Page 26: ... 26 PRINTED CIRCUIT BOARD DIGITAL BOTTOM ...

Page 27: ... 27 PRINTED CIRCUIT BOARD DRIVER TOP DRIVER BOTTOM ...

Page 28: ... 28 PRINTED CIRCUIT BOARD SMPS LINE FILTER ...

Page 29: ... 29 PRINTED CIRCUIT BOARD CONTROL TOP CONTROL BOTTOM PRE AMP SIDE A V CASE DET INTERFACE COLOR WHEEL ...

Page 30: ... 30 PRINTED CIRCUIT BOARD LED TOP LED BOTTOM COMPONENT TOP COMPONENT BOTTOM ...

Page 31: ... 31 BLOCK DIAGRAM ...

Page 32: ...0 680 681 401 403 402 404 700 630 420 640 641 602 622 623 174 502 530 590 601 600 570 572 571 612 620 610 611 621 720 411 310 308 309 305 660 121 300 650 301 120 302 430 434 431 433 432 670 520 540 501 550 624 560 503 400 ...

Page 33: ...DU 44 52SZ60D 530 6871VPMA54A PCB ASSEMBLY POWER SMPS NB 04AA DLP M I 540 6871VSMS02A PCB ASSEMBLY SUB TUNER NB03KB CABLE READY 550 6871VSMS01C PCB ASSEMBLY SUB DIGITAL NB04AA DU 52SZ62D 560 6871VSMU24F PCB ASSEMBLY SUB NB04AA DU 52SZ61D COMP M I ASSY 570 6871VSMB50F PCB ASSEMBLY SUB NB04AA DRIVER DU 52SZ61D 571 4814V00434B SHIELD ASSY DN 44SZ60D NB03KB SUS SHIELD CASE DRIVE BOTTOM 572 4814V00394B...

Page 34: ...P SOT323 5L SC1565IST 1 8 3P SOT223 MC33262P 8P LOCA NO PART NO DESCRIPTION IC1 IC1 IC1 IC100 IC1000 IC1000 IC1001 IC1002 IC1004 IC1008 IC101 IC102 IC103 IC1101 IC1102 IC1105 IC1200 IC1200 IC1202 IC1202 IC1203 IC1204 IC1205 IC1301 IC151 IC152 IC152 IC1602 IC2 IC200 IC201 IC202 IC203 IC204 IC206 IC207 IC208 IC208 IC300 IC301 IC4 IC400 IC401 IC401 IC402 IC402 0IZZVC0119A 0IMCRSH003A 0IPRPTO002A 0IKE...

Page 35: ...ALY KEC CHIP 2SC3875S ALY KEC 2N3904S SOT23 60V 200MA CHIP 2SC3875S ALY KEC CHIP 2SC3875S ALY KEC LOCA NO PART NO DESCRIPTION Q1202 Q1203 Q1203 Q1204 Q1205 Q1206 Q1206 Q1207 Q1208 Q1209 Q1210 Q1213 Q1214 Q1215 Q1216 Q1217 Q1218 Q1219 Q2 Q201 Q202 Q203 Q204 Q205 Q206 Q207 Q208 Q209 Q210 Q211 Q3 Q403 Q5 Q6 Q601 Q601 Q602 Q602 Q602 Q603 Q604 Q605 Q605 Q605 Q614 Q615 Q616 Q617 Q618 Q801 Q802 0TR387500...

Page 36: ...EN EU1ZV 1 TP SANKEN EU1ZV 1 TP SANKEN EG01C 1000V 0 5A 10A EU1ZV 1 TP SANKEN BRIDGE D2SBA60 STK EG1ZV 1 LOCA NO PART NO DESCRIPTION D845 D881 D881 D881 D881 D891 D901 D901 D902 D903 D904 D905 D906 D907 D908 D909 IC1001 IC1002 IC1002 ZD01 ZD1 ZD10 ZD2 ZD201 ZD202 ZD203 ZD204 ZD3 ZD4 ZD5 ZD6 ZD601 ZD602 ZD602 ZD603 ZD841 ZD851 ZD9 C1 C1000 C1001 C1002 C1003 C1004 C1005 C1006 C1007 C1008 C1009 0DD41...

Page 37: ...UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C112 C1120 C1121 C1122 C1123 C1124 C1125 C1126 C1127 C1128 C113 C1137 C1138 C114 C1140 C1141 C1142 C1144 C1149 C115 C1150 C116 C1161 C1163 C1164 C1165 C1167 C1168 C1169 C117 C1170 C1171 C1172 C1173 C118 C119 C120 C1201 C1202 C1202 C1203 C1204 C1204 C1205 C1206 C1207 C1208 C1208 C1209 C121 C121 0CK104CF...

Page 38: ...1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C1318 C1319 C1320 C1321 C1322 C1323 C1324 C133 C137 C140 C142 C143 C15 C158 C16 C160 C1620 C1621 C2 C20 C200 C201 C202 C202 C203 C203 C204 C204 C205 C205 C206 C207 C208 C208 C209 C209 C210 C210 C211 C212 C212 C213 C214 C215 C216 C216 C217 C217 C218 C21...

Page 39: ...10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C334 C335 C336 C337 C338 C339 C340 C341 C342 C343 C344 C345 C346 C347 C348 C349 C350 C351 C352 C353 C354 C355 C356 C357 C358 C359 C360 C361 C362 C363 C364 C365 C366 C367 C368 C369 C370 C371 C372 C373 C374 C375 C376 C377 C378 C379 C380 C381 C382 C383 C400 0CK104CF56A 0CK104CF56A 0CK104CF56A 0CK104...

Page 40: ...V 10 220UF STD 10V M 0 1UF 1608 16V 10 100UF STD 25V M 0 1UF 1608 16V 10 56PF 1608 50V 5 LOCA NO PART NO DESCRIPTION C445 C447 C450 C451 C451 C453 C453 C456 C462 C464 C466 C480 C482 C484 C50 C500 C501 C503 C504 C505 C506 C507 C508 C509 C514 C515 C516 C517 C519 C520 C521 C522 C523 C524 C525 C528 C53 C530 C531 C533 C534 C535 C536 C601 C602 C603 C604 C605 C606 C608 C609 0CC560CK41A 0CC560CK41A 0CC560...

Page 41: ... 1608 16V 10 4 7UF STD 50V 20 0 1UF 1608 16V 10 10UF MV 16V 20 0 1UF 1608 16V 10 100UF MVG 16V M LOCA NO PART NO DESCRIPTION C631 C632 C632 C632 C633 C634 C634 C635 C636 C637 C638 C639 C640 C641 C642 C643 C643 C643 C644 C644 C645 C645 C646 C646 C647 C647 C648 C648 C648 C649 C649 C650 C651 C652 C653 C654 C655 C664 C668 C669 C700 C701 C702 C702 C703 C704 C704 C705 C706 C706 C707 0CK104CF56A 0CK104CF...

Page 42: ...0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION 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 C772 C773 C774 C775 C776 C777 C778 C779 C780 C781 C782 C783 C800 C800 C801 C801 C802 C802 C802 C802 C803 C804 0CK104CF56A 0CK104CF56A 0CK...

Page 43: ...1UF 1608 16V 10 0 1UF 1608 16V 10 100UF KME 50V M 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C825 C825 C826 C826 C827 C828 C829 C830 C831 C831 C832 C832 C833 C833 C833 C834 C834 C835 C835 C835 C836 C836 C836 C837 C837 C838 C839 C840 C841 C841 C842 C842 C843 C843 C844 C844 C845 C845 C846 C846 C847 C848 C850 C851 C852 C853 C853 C855 C856 C858 C859 0CE107BK618 0...

Page 44: ...UF 1608 16V 10 0 1UF 1608 16V 10 0 1UF 1608 16V 10 0 082UF 1608 16V 5 5 0 1UF 1608 16V 10 LOCA NO PART NO DESCRIPTION C929 C930 C930 C931 C931 C932 C932 C933 C933 C934 C934 C935 C936 C936 C937 C937 C938 C938 C939 C939 C940 C940 C941 C941 C942 C942 C943 C944 C944 C945 C945 C946 C946 C947 C947 C948 C949 C949 C950 C951 C952 C953 C954 C955 C956 C957 C959 C961 C962 C963 C964 0CK104CF56A 0CC471CK41A 0CK...

Page 45: ... SCART 48PIN JACK SCART 48PIN JACK ASSEMBLY PMJ021G 9P JACK RCA PJ6061E 6P LOCA NO PART NO DESCRIPTION JA201 JA202 JA204 P101B P102B P103B P501 AR1000 AR1001 AR112 AR113 AR706 AR708 AR900 AR901 AR902 AR903 AR904 AR905 R1 R121 R1253 R2 R3 R4 R5 R556 R557 R558 R559 R56 R560 R561 R632 R634 R666 R667 R668 R673 R680 R800 R803 R803 R805 R806 R806 R807 R807 R808 6613V00010B 6613V00013B 380 404A 6612VMH00...

Page 46: ...L806 FL807 FL808 FL809 FL810 FL811 FL812 FL813 FL814 FL815 FL816 FL817 FL818 FL819 FL820 FL822 FL823 FL824 FL825 FL826 FL827 FL829 FL900 FL901 FL902 L1005 L1006 140 313B 140 313B 6600DU2093V 125 022K 125 022K 125 022K 125 022K 125 022K 125 022K 125 022K 6200QJ3001A 6200QJ3001A 6200QJ3001A 6200C000010 6200C000010 6200C000010 6200QJ3001A 6200QJ3001A 6200QJ3001A 6200QJ3001A 6200QJ3001A 6200QJ3001A 62...

Page 47: ... 201209 0120P N2 5A FILTER EMC MLB 321611 0120A N1 FILTER EMC MLB 201209 0120P N2 5A FILTER EMC MLB 201209 0120P N2 5A FILTER B P H354LAI K5225 FILTER B P H354LAI K5225 FILTER B P H354LAI K5202 FILTER B P H354LAI K5202 LOCA NO PART NO DESCRIPTION T400 T401 T402 T403 T501 T502 T504 T509 T511 T512 T513 T514 T515 T601 T602 T603 T604 X1 X1001 X1001 X1100 X1200 X1201 X1202 X151 X600 X601 X601 F401 F800...

Page 48: ...ON X800 A1 A2 A3 6204B47985K 3828VA0515C 6710V00116P 6851V00023B OSCILLATOR BMS 873R 25MHZ MANUAL OWNERS NB04AA REMOTE CONTROLLER NB04AA PIP CABLE ASSEMBLY 3000MM 2PICE LOCA NO PART NO DESCRIPTION REPLACEMENT PARTS LIST ACCESSORIES ...

Page 49: ...nted in Korea P NO 3828VD0148N 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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