LG RU-23LZ21 Page 16 Service Manual Download | Manualshive

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Summary of Contents for RU-23LZ21

Page 1: ...CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS ML 027C MODEL RU 23LZ21 website http biz LGservice com e mail http www LGEservice com techsup html Oct 2003 Printed in Korea P NO 3828VD0140K MONO DPM STEREO ST DUAL h t t p w w w w j e l n e t ...

Page 2: ... 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 assembly drain off any e...

Page 3: ...F CONTROLS 5 ADJUSTMENT INSTRUCTIONS 7 TROUBLESHOOTING 10 PRINTED CIRCUIT BOARD 11 BLOCK DIAGRAM 15 EXPLODED VIEW 16 EXPLODED VIEW PARTS LIST 17 REPLACEMENT PARTS LIST 18 SCHEMATIC DIAGRAM TABLE OF CONTENTS h t t p w w w w j e l n e t ...

Page 4: ... 4 SPECIFICATIONS h t t p w w w w j e l n e t ...

Page 5: ... Standby mode Glows green when the TV is turned on Stereo Indicator Headphone Jack S Video Input Video Input Audio Input AC Input DVD DTV Input Component 480i 480p 720p 1080i Audio Audio Video Input PC Sound Input PC Input Antenna Input Channel Buttons Volume Buttons ch vol menu enter on off tv video I Enter Button Menu Button TV Video Button On Off Button h t t p w w w w j e l n e t ...

Page 6: ...PIP POSITION PIP INPUT SIZE PIP SWAP STILL SCAN CH D D E E ENTER CH D D E E Channel button VOL F F G G Volume button POWER MTS EXIT MENU MULTIMEDIA Selects TV Component or RGB PC mode VIDEO CC FLASHBK Press the FLASHBK button to return to the last channel you were watching SLEEP AUDIO ARC TV VIDEO Selects TV Video 1 Video 2 S Video Component or RGB PC mode FCR NUMBER buttons Remote Control Key Fun...

Page 7: ...d for 15 minutes prior to adjustment Heat Run must be performed with the full white signal or TV noise signal 3 PC Input Mode Adjustment 3 1 Required Test Equipment 1 A pattern generator Gray pattern of 16 tones with angle outline in the quadrilateral MSPG 925LTH 2 An adjustment Remote 3 2 Preparation for Adjustment 1 Perform Heat Run for more than 15 minutes in white pattern 2 Connect the signal ...

Page 8: ...00 600 72 1040 240 120 POS 64 56 48 077 50 0 666 66 6 POS 23 37 Mode H_Display V_Display V_Frequency H_Total H_Blanking H_Sync H_Polarity H_Vp H_Fp H Freq KHz Clk MHz V_Total V_Blanking V_Sync V_Polarity V_Bp V_Fp SVGA 75 800 600 75 1056 256 80 POS 160 16 46 875 49 5 625 25 3 POS 21 1 SVGA 85800 600 85 1048 248 64 POS 152 32 53 674 56 25 631 31 3 POS 27 1 XGA 60 1024 768 60 1344 320 136 NEG 136 16...

Page 9: ... 0B 50 40 01 01 30 32 FF 01 54 81 01 01 18 55 FF 01 BF 80 01 01 88 1E FF 78 E8 01 01 01 36 46 FF 1F 80 01 01 01 00 0D FF 17 31 10 01 01 0E 00 00 70 59 0E 01 01 C3 0A 30 E8 3B 01 F9 01 10 20 E5 C3 D9 01 15 01 00 20 D7 A0 45 01 01 64 00 20 3A A3 59 01 01 19 1E 20 01 54 61 01 01 00 00 20 00 4C 59 01 01 40 00 20 00 97 71 01 01 41 00 00 00 24 59 01 01 00 FD C8 h t t p w w w w j e l n e t ...

Page 10: ...nents and Check and repair tuner board and main board soldering at tuner board 2 Dark screen 1 Defective LCD lamp 1 Replace the LCD lamp 2 Defective inverter 2 Replace the inverter 3 Input error for inverter 3 Check the connector input 1 General Features 2 PC Mode No Symptom Cause Check Point No Symptom Cause Check Point Check Point 1 Screen noise Clock or phase 1 Resettig needed according to the ...

Page 11: ... 11 PRINTED CIRCUIT BOARD MAIN TOP h t t p w w w w j e l n e t ...

Page 12: ... 12 PRINTED CIRCUIT BOARD MAIN BOTTOM h t t p w w w w j e l n e t ...

Page 13: ... 13 PRINTED CIRCUIT BOARD POWER h t t p w w w w j e l n e t ...

Page 14: ... 14 PRINTED CIRCUIT BOARD CONTROL LED SIDE AV h t t p w w w w j e l n e t ...

Page 15: ... 15 BLOCK DIAGRAM h t t p w w w w j e l n e t ...

Page 16: ... 16 EXPLODED VIEW 250 112 520 550 500 320 210 220 310 400 430 230 240 530 560 300 120 120 340 350 330 360 370 380 330 h t t p w w w w j e l n e t ...

Page 17: ...67C BRACKET STAND RU 20LA61 NON ABS HF 380 HINGE FRONT 350 4810V00768C BRACKET STAND RU 20LA61 NON ABS HF 380 HINGE REAR 360 4810V00766C BRACKET STAND RU 20LA61 NON ABS HF 380 DECO 370 4810V00769C BRACKET STAND RU 20LA61 NON ABS HF 380 BASE 380 4950V00133A METAL STAND NON BASE 20LA60 400 3809V00359J BACK COVER ASSEMBLY RU 23LZ21 NON 430 3500V00068B BOARD AV RU 23LZ21 ML027C 520 6871VMMQ43A PWB PCB...

Page 18: ...40 TP 40V 3A 80A 2MA EU1ZV 1 TP SANKEN EU1ZV 1 TP SANKEN EU1ZV 1 TP SANKEN EU1ZV 1 TP SANKEN EU1ZV 1 TP SANKEN TVR06J DO41 600V 0 6A TVR06J DO41 600V 0 6A YG805C06R 60V 20A 80A SEC 15MA FML 24S 400V 10A 70A 40NSEC 0 1MA LOCA NO PART NO DESCRIPTION IC2 IC201 IC202 IC3 IC301 IC401 IC501 IC502 IC503 IC504 IC510 IC555 IC600 IC601 IC603 IC604 IC701 IC702 IC801 IC803 IC804 IC805 IC806 IC807 IC808 IC888 ...

Page 19: ...20000PF 2012 16V 10 R TP X7R 220000PF 2012 16V 10 R TP X7R 1UF STD 50V M FL TP5 220000PF 2012 16V 10 R TP X7R LOCA NO PART NO DESCRIPTION C316 C328 C332 C333 C336 C337 C338 C341 C343 C347 C349 C351 C353 C546 C583 C584 C585 C59 C6 C60 C603 C61 C613 C615 C616 C617 C619 C62 C620 C621 C622 C624 C626 C627 C628 C63 C630 C634 C643 C644 C645 C650 C658 C660 C662 C665 C666 C668 C677 C682 0CE107DD618 0CE106D...

Page 20: ...5 470UF KME TYPE 35V 20 FL TP 5 470UF KME TYPE 35V 20 FL TP 5 LOCA NO PART NO DESCRIPTION C868 C875 C883 C888 C888 C890 C891 C892 C894 C898 C899 C902 C902 C902A C923 C924 C925 C926 C927 C928 C941 C942 C956 C962 C991 L101 L2105 L2106 L652 L653 L654 L655 L801 L805 L805 T30 JA202 P2000 P2001 P2002 P3 P3000 P3009 P499 P702 P704 181 007T 0CE108DH618 181 091D 0CE477DD618 0CE477DH618 181 120P 181 120P 18...

Page 21: ...16 W 1608 5 R TP 4P E24 MNR 14 E0A J 101 R OHM 100 OHM 5 MNR 14 E0A J 101 R OHM 100 OHM 5 MNR 14 E0A J 101 R OHM 100 OHM 5 MNR 14 E0A J 101 R OHM 100 OHM 5 LOCA NO PART NO DESCRIPTION RA705 RA706 RA707 F801 F801 F802 F803 F805 F805 JA2000 JA204 JA205 JA206 SJ205 SJ209 SW1 SW2 SW3 SW4 SW5 SW501 SW502 SW6 SW7 SW8 FB801 L102 L103 L1955 L1956 L1957 L1958 L205 L206 L2100 L2101 L2105 L2106 L2107 L2108 L...

Page 22: ...3216MM R TP HH 1M3216 501 3216MM R TP HH 1M3216 501 3216MM R TP HH 1M3216 501 3216MM R TP HH 1M3216 501 3216MM R TP HH 1M3216 501 3216MM R TP HH 1M3216 501 3216MM R TP HH 1M3216 501 3216MM R TP HB 1S2012 080JT 2012MM CHIP BEAD HH 1M3216 501 3216MM R TP FERRITE BFD3565R2F TAPING OR 14 7 7 5H SMC BK 6 0 11 0MH 0 55PHY OR 14 7 7 5H SMC BK 6 0 11 0MH 0 55PHY OR 14 7 7 5H SMC BK 6 0 11 0MH 0 55PHY HH 1...

Page 23: ...h t t p w w w w j e l n e t ...

Page 24: ...h t t p w w w w j e l n e t ...

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