Zenith C30W46, Service Manual

Page 1: ...Series CONTENTS Description of Controls 5 Specifications 8 Adjustment Instructions 9 Diagrams 26 Parts List 29 Schematics Published Oct 2003 by Technical Publications LG Electronics USA Inc 201 James...

Page 2: ...ical evidence of damage or deterioration to parts and components for frayed leads or damaged insulation including the AC cord and replace if necessary 5 No lead or component should touch a receiving t...

Page 3: ...To verify the Shutdown Circuit is operating properly proceed with the following procedure Supply 7 5V DC between R446 and R448 on the High Voltage Deflection PCB If there is no raster and set goes int...

Page 4: ...FICATIONS 8 ADJUSTMENT INSTRUCTION 9 FEATURE OF MICOM FUNCTION 13 TROUBLESHOOTING 17 PRINTED CIRCUIT BOARDS 21 BLOCK DIAGRAM 26 EXPLODED VIEW 28 EXPLODED VIEW PARTS LIST 29 REPLACEMENT PARTS LIST 30 S...

Page 5: ...vorite channels Refer to Favorite channel memory 6 MENU Displays on screen menus 7 CHANNEL UP DOWN Selects the desired channel Selects the desired menu option when menu is displayed on the screen VOLU...

Page 6: ...ach channel 17 MTS Selects MTS sound Mono Stereo or SAP 18 MUTE Press to remove sound Press again to restore sound 19 MEMORY ERASE To memorize or erase a channel 20 PIP Picture in Picture PIP DW Selec...

Page 7: ...luminates red bright when the TV is in standby mode Refer to Turning the TV on off 22 REMOTE CONTROL SENSOR This is a simplified representation of the front panel on off tv video menu vol ch 1 21 22 1...

Page 8: ...W46 Power requirements AC 120 V Television system NTSC Television channels VHF 2 13 UHF 14 69 Cable 01 125 Power consumption See the back of the TV External antenna impedance 75 Audio output 7W 7W SPE...

Page 9: ...pposite direction repectively 3 If not adjust 2 Pole magnet so the beam lands at mask hole accurately 3 Purity Adjustment 1 Adhere DY closely to CRT 2 Receive Red Pattern and adjust the 2 Pole magnet...

Page 10: ...oordinates in High and Low color satisfies the Table 6 Check the adjusted color coordinates with the white balance meter 6 Focus Adjustment Adjust after operating the receiver for 15 minuets 6 1 Preli...

Page 11: ...Select VP 9 PIN AMP and adjust until Pincushion distortion disspears on left and right side 5 Select VP 10 11 UP CORNERPIN LO CORNERPIN and adjust until pincushion distortion dispears on upper and lo...

Page 12: ...11 12 13 14 3 1 2 SUB TINT SUB BRIGHT SUB CONTRAST SUB TINT 24 39 23 40 SUB BRIGHT 0 63 SUB CONTRAST 0 15 V POSITION V SIZE UP VLIN LO VLIN H POSITION H SIZE PIN PH AFC ANGLE AFC BOW PIN AMP UP CORNER...

Page 13: ...4 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 Hsync Vsync P40 AD4 P41 INT2 P42 TIM2 P43 TIM3 P24 AD3 P25 AD2 P26 AD1 P27 AD5 P00 PWM4 P50 PWM7 P01 PWM5...

Page 14: ...ut Polarity Active L O Vertical Sync Signal Input O Input Polarity Active L O Inputs C Data of Chroma picture Data is input by A D O For remote control input uses external interupt O Detects Power of...

Page 15: ...IC related to controlling every IIC O 480I P at the time of signal one High 1080I at the time of signal one Low O Sound Mute O Easy_Link Rx Input Terminal O For adjusting IIC Active Low MICOM doesn t...

Page 16: ...e sub TILT 1 TILT 2 N C SCREEN N C Ys OSD B OSD G OSD R O Outputs sound data of sub picture Using PWM O Indicates for degaussing High Low O Degaussing Output Terminal PWM N C O Horizontal Line regulat...

Page 17: ...17 TROUBLE SHOOTING...

Page 18: ...18 TROUBLE SHOOTING...

Page 19: ...19 TROUBLE SHOOTING...

Page 20: ...20 TROUBLE SHOOTING...

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

Page 22: ...22 PRINTED CIRCUIT BOARD PROGRESSIVE TOP PROGRESSIVE BOTTOM...

Page 23: ...23 MICOM PRINTED CIRCUIT BOARD SIDE A V...

Page 24: ...24 CPT PRINTED CIRCUIT BOARD...

Page 25: ...25 CONTROL PRINTED CIRCUIT BOARD...

Page 26: ...26 BLOCK DIAGRAM MAIN SUB MSP3440 L R TDA7297 MICOM M37280 CPT VM TDA6111 FRONT END SRC VSP9427 144pin QFP 4H COMB...

Page 27: ...27 Option BLOCK DIAGRAM...

Page 28: ...28 EXPLODED VIEW 510 150 170 112 912 943 400 300 120 123 122 124 121 320 600 330 310 501 560 503 550 520 580 504...

Page 29: ...CONTROL 32XF70 ABS HF 380 6KEY 102 320 320 062G SPRING COIL STSC 304 D15 20 NON 330 5020V00506A BUTTON 400 3809V00256Z BACK COVER ASSEMBLY RU 32FZ13 NON MC021B 501 4810V00379K BRACKET MAIN 28FZ10RX MC...

Page 30: ...O DESCRIPTION D850 HIC951 IC01 IC02 IC03 IC04 IC101S IC1601 IC190 IC201S IC202S IC203S IC204S IC205S IC206S IC207S IC301 IC401 IC401S IC501S IC601 IC650 IC652 IC801 IC802 IC851 IC853 IC854 IC856 IC901...

Page 31: ...SEC GSIB660 5S 600V 6A 180A LED ASSY MC51A M 8 9 ZENERS GDZ5 1B ZENERS HZT33 ZENERS MTZJ6 2B ZENERS MTZJ6 2B ZENERS MTZJ6 2B LOCA NO PART NO DESCRIPTION ZD1206 ZD1601 ZD351 ZD403 ZD447 ZD601 ZD650 ZD9...

Page 32: ...M 2 2UF STD 50V 20 1UF STD 50V M 1UF STD 50V M 0 0015UF D 100V 10 2 2UF STD 50V 20 LOCA NO PART NO DESCRIPTION C333 C338 C339 C340 C348 C350 C401 C402 C403 C404 C405 C406 C408 C409 C411 C412 C413 C414...

Page 33: ...0 33UF J 470UF STD 25V M R 680PF 2KV 10 10 LOCA NO PART NO DESCRIPTION C806 C807 C808 C809 C812 C813 C814 C815 C816 C817 C818 C821 C841 C842 C851 C852 C853 C854 C855 C856 C857 C858 C859 C861 C862 C863...

Page 34: ...O PART NO DESCRIPTION P602B P902B F851 F853 F855 F856 FB854 FR359 FR360 FR441 FR442 FR443 FR448 J111 J315 J625 J625 J918 L008 L1203 L1204 R009 R010 R013 R031 R033 R034 R035 R036 R037 R038 R039 R041 R0...

Page 35: ...1K OHM 1 6 W 1 00 3 9K OHM 1 6 W 5 10K OHM 1 6 W 5 LOCA NO PART NO DESCRIPTION R403 R403 R404 R405 R406 R407 R408 R409 R410 R412 R413 R414 R415 R416 R417 R418 R419 R420 R421 R422 R423 R424 R425 R426 R...

Page 36: ...3K OHM 1 6 W 5 00 910 OHM 1 6 W 5 00 1 0M OHM 1 2 W 5 LOCA NO PART NO DESCRIPTION R917 R918 R921 R929 R930 R938 R946 R947 R950 R951 R952 R953 R954 R955 ZD851 SG904 SG905 SG906 SG907 SG908 SW1101 SW115...

Page 37: ...501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC SQE2930 10MH FILTER EMC SQE3535 20MH RESONATOR CRYSTAL HC49U 8 000MHZ RESONATOR CRYSTAL HC49U 20 250MHZ RESONATOR CRYSTAL HC49U...

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