LG 30FZ4D, Service Manual

Page 1: ...ANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS AC 02SC MODEL 30FZ4D MODEL 32FZ4D UA CANADA http biz lgservice com USA http www lgservice com http lgservice com techsup html ...

Page 2: ...etc 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 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 metall...

Page 3: ...IPTION OF CONTROLS 4 SPECIFICATIONS 9 ADJUSTMENT INSTRUCTION 10 BLOCK DIAGRAM 16 EXPLODED VIEW 20 EXPLODED VIEW PARTS LIST 21 REPLACEMENT PARTS LIST 22 SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARDS TABLE OF CONTENTS ...

Page 4: ...by mode Dims when the TV is switched on TV VIDEO MENU VOL left right Volume G G button increases the sound level and vol ume F F button decreases the sound level CH Channel up down 1 2 3 4 These buttons work just as they do on your remote control 5 6 7 TV VIDEO MENU VOL CH ON OFF 1 2 4 3 7 8 5 6 8 DESCRIPTION OF CONTROLS ...

Page 5: ...televi sion either directly or through your cable box Video 1 and 2 Inputs Connects the video sig nals from various types of equipment Y PB PR DVD Component Video and HD Component Video Some top of the line DVD players use what is called component video for extremely accurate pic ture reproduction Refer to your DVD manual for further information Connecting external equipment to your TV Monitor Out...

Page 6: ...t Right Audio Used for stereo sound from various types of equipment Video in Connects the video signals from any piece of equipment S Video A connection available on some very high end equipment that provides bet ter picture quality than video input When you select Side video or Side S Video the Front Audio inputs are automatically select ed as well Do not connect to both Video and S Video at the ...

Page 7: ...oSound System and SRS TruSurround XT MUTE Switches the Mute or the EZ mute Mute The sound is off EZ mute The sound is off and the caption is display THUMBSTICK Allows you to navigate the on screen menus and to adjust the system set tings and preferences by moving to an option withF G and selecting the high lighted option with TV INPUT Selects TV and CATV MODE Selects the remote operating mode TV V...

Page 8: ...is plays selects highlighted options RECORD PAUSE REW FFWD PLAY STOP Control the functions on your VCR VOLUME UP DOWN Increases decreases the sound level INFO When you watch the TV dis plays information on top of the screen Not available in Component 1 2 and HDMI DVI SKIP LEFT RIGHT Playing CDs Selects songs Playing DVDs Selects movie chapters COMP2 Selects the Component 2 input source HDMI Select...

Page 9: ...external terminal for VHF UHF Audio Output W 7W x 2 Supplied accessories Remote control batteries 2 size AA Alkaline battery Screen Aspect Ratio 16 9 External input ports Video Audio input 3 set Video output 1 set S Video input 2 Component input 2 set Variable audio output 1 set HDMI DVI input 1 Digital audio optical input 2 Digital audio optical output 1 Calibration port 1 Cable Antenna port Desi...

Page 10: ... the ADJ key on the SVC Remote control When it enters to adjustment mode the pattern from a signal generator is being selected it becomes with Normal image 16 9 and the CUT OFF DRIVE data setting 31 2 Connect the oscilloscope ground lead to GND on the CPT board and the probe to the GK pin connector of the CPT socket Using the SCREEN knob on the Flyback Transformer adjust the black level voltage to...

Page 11: ...matically 7 White Balance Adjustment Perform the screen adjustment first Color Temp must be adjusted from Medium Mode The image condition must be adjusted from Normal condition Manual adjustment is also possible by the following sequence 1 Receive White Pattern 2 Set screen size to wide mode 3 Select EZ Adjust 4 White Balance on the SVC Remote control 4 Adjustment 1 Set an image with Normal image ...

Page 12: ...b COLOR TINT Adjustment 1 Select EZ Adjust 6 Sub Tint Color pressing ADJ key on the SVC Remote control 2 Select SUB COLOR and adjust the 1 and 1 portion not to be classified 3 Select SUB TINT and adjust the 3 and 3 portion not to be classified ADJUSTMENT INSTRUCTIONS WHITE B M C W BK BK BK 1 1 3 3 GREENMAGENTA CYAN BLUE RED YELLOW ...

Page 13: ...mpletely forward 5 Reconnect the internal degaussing coil 6 Position the beam bender locking rings at the 9 o clock position and the other three pairs of tabs 2 4 and 6 pole magnets at the 12 o clock position 7 Perform the following steps in the order given to prepare the receiver for the purity adjustment procedure a Face the receiver in the magnetic north direction b Externally degauss the recei...

Page 14: ...ernal degaussing coil 9 Turn the receiver on connect a signal generator to the VHF antenna terminal and apply a crosshatch signal Caution During the convergence adjustment procedure be very careful not to disturb the purity adjustment tabs Purity should be confirmed before proceeding with the convergence adjustments Note Make sure the focus is set correctly on this instrument before proceeding wit...

Page 15: ...ontal lines Fig upper right 17 Temporarily place a rubber wedge at the 5 o clock and 7 o clock positions to hold the horizontal position of the yoke 18 Check the 3 o clock and 9 o clock areas to confirm that the red and blue vertical lines are converged If the lines are not converged slightly offset the horizontal tilt of the yoke move the temporary rubber wedges if necessary to equally balance th...

Page 16: ... 16 BLOCK DIAGRAM ...

Page 17: ... 17 BLOCK DIAGRAM ...

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

Page 19: ... 19 NOTES ...

Page 20: ... 20 EXPLODED VIEW 300 120 600 700 310 580 330 570 501 503 174 520 550 530 560 943 400 510 150 170 912 112 ...

Page 21: ...E AC 02SC 501 4810V00708H BRACKET MAIN DU 32FZ40 AC02SC HIPS 40AF BK 503 4811V00186B BRACKET ASSEMBLY REAR AV DU 32FZ40 AC02SC HDMI JACK 510 6871VSMQ28H PCB ASSEMBLY SUB CRTMIN AC02SC DU 32FZ40 CPT BOARD 520 6871VMM780A PCB ASSEMBLY MAIN AC 02SC DU 32FZ40 530 6871VDM920A PCB ASSEMBLY DEFLECTION MAIN2 AC 02SC DU 32FZ40 M I 550 6871VSMT89B PCB ASSEMBLY SUB DIGITAL AC02SC DU 32FZ40 M I 560 6871VSM696...

Page 22: ...OCA NO PART NO DESCRIPTION D808 IC100 IC101 IC101 IC102 IC103 IC103 IC104 IC105 IC106 IC107 IC109 IC110 IC1101 IC12 IC1201 IC13 IC14 IC1401 IC15 IC1504 IC1505 IC1506 IC1601 IC1602 IC17 IC18 IC19 IC20 IC200 IC202 IC203 IC2300 IC2302 IC308 IC314 IC315 IC405 IC407 IC500 IC501 IC502 IC503 IC504 IC504 IC506 0ISK100300A 0IMCRSS016A 0IMMRAL016D 0ISH323422A 0IMMRAL016D 0IMMRHY001F 0ISJ156612A 0IMMRHY001F ...

Page 23: ...CHIP 2SA1504S ASY KEC CHIP 2SA1504S ASY KEC KTC3227 Y TP KTC1627A KEC BF421L AMMO TO 92 TP PHILIPS LOCA NO PART NO DESCRIPTION Q803 Q804 Q901 Q902 Q903 Q904 Q905 Q970 Q971 Q972 Q973 D100 D1401 D1405 D1406 D1409 D1410 D1415 D1417 D1419 D1420 D1426 D1427 D1428 D1429 D1430 D1433 D1501 D1601 D1604 D1605 D1606 D1609 D1901 D1903 D1904 D1905 D1907 D1908 D1909 D1913 D1914 D505 D506 D511 D512 D514 D600 D80...

Page 24: ...0 0 1UF 2012 50V 10 47UF STD 10V 20 0 1UF 2012 50V 10 0 1UF 2012 50V 10 LOCA NO PART NO DESCRIPTION C120 C1201 C1201 C1203 C1204 C1205 C1208 C121 C1216 C1217 C1220 C1223 C1227 C1228 C1229 C123 C1231 C1232 C1233 C1234 C1235 C124 C125 C125 C126 C129 C130 C131 C132 C132 C1328 C135 C136 C140 C140 C1401 C1405 C1407 C1412 C1413 C1414 C1415 C1416 C1417 C1418 C1420 C1421 C1423 C1425 C1426 C1428 0CK104DK56...

Page 25: ...D 100V 10 2200UF STD 35V M 2200UF STD 35V M 0 1UF 2012 50V 10 1UF STD 50V 20 10UF STD 50V 20 1UF STD 50V 20 10UF STD 50V 20 LOCA NO PART NO DESCRIPTION C1650 C1651 C1652 C17 C18 C19 C1902 C1905 C1906 C1907 C1911 C1912 C1915 C1916 C1917 C1918 C1923 C1925 C1926 C1928 C1929 C1930 C1931 C1940 C1952 C1953 C1955 C1956 C20 C206 C21 C215 C218 C22 C222 C227 C23 C2304 C2400 C241 C244 C246 C247 C248 C249 C25...

Page 26: ... MPE ECQ V1H474JL3 TR 50V 0 47UF J 0 1UF 2012 50V 10 0 1UF 2012 50V 10 LOCA NO PART NO DESCRIPTION C513 C514 C515 C516 C517 C518 C519 C52 C520 C521 C523 C524 C525 C526 C528 C529 C53 C530 C531 C532 C536 C54 C541 C544 C553 C555 C556 C601 C601 C602 C603 C604 C607 C610 C611 C612 C619 C621 C628 C629 C630 C633 C634 C643 C677 C689 C801 C802 C802 C806 C807 0CK104DK56A 0CK104DK56A 0CK104DK56A 0CK104DK56A 0...

Page 27: ...1UF 2012 50V 10 0 1UF 2012 50V 10 330UF STD 50V 20 LOCA NO PART NO DESCRIPTION C972 C973 C974 C975 C976 C977 C978 C979 R1977 IC501 IC502 JA1201 JA1202 JA1203 JA201 JA203 L002 L1101 L1401 L1402 L1403 L1406 L1413 L1503 L1901 L1903 L1910 L503 L805 L806 L807 T1401 T1402 T1403 T802 T803 P005 P006 P008 P104 P403B P405B P604B P803B P804B 0CE106DR618 0CE106DK618 0CE106DK618 0CE106DK618 0CE336DP618 0CE107D...

Page 28: ... 00 13K OHM 1 6 W 5 00 1 OHM 1 2 W 5 00 0 82 OHM 1 2 W 5 00 13K OHM 1 6 W 5 00 LOCA NO PART NO DESCRIPTION R1418 R1419 R1420 R1421 R1424 R1425 R1426 R1427 R1428 R1429 R1430 R1431 R1432 R1433 R1434 R1436 R1437 R1439 R1440 R1441 R1442 R1443 R1444 R1445 R1447 R1448 R1449 R1450 R1451 R1452 R1456 R1457 R1458 R1459 R1460 R1462 R1464 R1466 R1469 R1470 R1471 R1472 R1492 R1493 R1494 R1497 R1500 R1509 R1646...

Page 29: ... 20 0 02 OHM 1 W 20 0 02 OHM 1 W 20 0 02 OHM 1 W 20 LOCA NO PART NO DESCRIPTION R867 R904 R911 R911 R912 R925 R926 R926 R948 R970 R971 R972 R973 R974 R977 R978 R980 R981 R983 R986 R987 R988 ZD504 SG1401 SG1402 SG1901 SG1902 SG1903 SG1904 SG1905 P802 SW01 SW02 SW03 SW04 SW05 SW06 SW100 B2200 B304 B307 B403 B410 B411 B600 0RP0050H709 0RD2202F609 0RD3900F609 0RS3900K619 0RD0222F609 0RF0102H609 0RF100...

Page 30: ...F FILTER EMC 62MM 1UH FILTER EMC MLB 321611 0120A N1 FILTER EMC SQE3535 20MH FILTER EMC 62MM 1UH FILTER EMC SQE3535 20MH FILTER EMC 62MM 1UH FILTER EMC 62MM 1UH FILTER EMC SQE3535 10MH FILTER EMC STC222D 50VOLT 4A 2200PF FILTER EMC BMS400 NIGATA 25V 200MA FILTER EMC BMS400 NIGATA 25V 200MA FILTER EMC BMS400 NIGATA 25V 200MA FILTER EMC BMS400 NIGATA 25V 200MA FILTER EMC BMS400 NIGATA 25V 200MA FILT...

Page 31: ...nted in Korea P NO 3828VD0156J 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 35: ...MAIN TOP MAIN2 DIGITAL TOP CPT DIGITAL BOTTOM MAIN BOTTOM LINE FILTER POWER SIDE A V CONTROL ...