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Table of Contents
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Summary of Contents for LG RU-23LZ21
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Page 1: Service Manual
LCD TV SERVICE MANUAL CHASSIS : ML-027C MODEL : RU-23LZ21 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. MONO DUAL STEREO Oct.,2003 P/NO : 3828VD0140K Printed in Korea... -
Page 2: Product Safety
PRODUCT SAFETY IMPORTANT SAFETY NOTICE 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on the This manual was prepared for use only by properly trained audiovisual service body by touching a known earth ground. Alternatively, obtain and wear a technicians. -
Page 3: Table Of Contents
TABLE OF CONTENTS SPECIFICATIONS..............4 DESCRIPTION OF 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............- 3 -... -
Page 4: Specifications
SPECIFICATIONS - 4 -... -
Page 5: Description Of Controls
DESCRIPTION OF CONTROLS Controls & Connection Options Controls & Connection Options Channel Buttons Volume Buttons Enter Button Menu Button TV/Video Button SAP Indicator Mono Indicator Stereo Indicator DPM Indicator On/Off Button Power/Standby Indicator Glows red in Standby mode, Glows green when the TV is turned on. Remote Control Sensor Headphone Jack S-Video Input... -
Page 6: Remote Control Key Functions
DESCRIPTION OF CONTROLS Remote Control Key Functions Remote Control Key Functions - When using the remote control, aim it at the remote control sensor on the TV. MUTE MULTIMEDIA Switches the sound on or off. Selects: , or Component RGB- mode. -
Page 7: Adjustment Instructions
ADJUSTMENT INSTRUCTIONS 1. Application Object This instruction is for the application to the LCD TV. 2. Notes (1) This set uses an adapter, so connect the adapter and the set correctly before adjustment. (2) Adjustments must be performed in the correct sequence. (3) Adjustments must be performed in an enviorment of 25!5cC (68-85 degrees F) of temperature and 65!10% of relative humidity. -
Page 8: Position Adjustment
ADJUSTMENT INSTRUCTIONS 4. Position Adjustment SVGA-75 SVGA- Mode VGA-60 VGA-67 VGA-75 VGA-85 SVGA-56 SVGA-60 SVGA-72 85800 H_Display V_Display V_Frequency 1056 1048 H_Total 1024 1056 1040 H_Blanking H_Sync H_Polarity NEG. NEG. H_Vp H_Fp 46.875 53.674 H-Freq[KHz] 31.469 35.0 37.5 43.269 35.156 37.879 48.077 49.5... - Page 9 ADJUSTMENT INSTRUCTIONS 5. EDID (The Extended Display Identification Data) EDID Table 0D 0E - 9 -...
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Page 10: Troubleshooting
TROUBLESHOOTING 1. General Features Symptom Cause Check Point No screen Input error of inverter connector 1) Bend the pin legs of P1 connector -> recheck them 2) Check and repair F804. P704 connector slipping out 1) Check and fix P704 connector 2) Check and fix the components at P704 LCD module and at main board. -
Page 11: Printed Circuit Board
PRINTED CIRCUIT BOARD MAIN(TOP) - 11 -... - Page 12 PRINTED CIRCUIT BOARD MAIN(BOTTOM) - 12 -...
- Page 13 PRINTED CIRCUIT BOARD POWER - 13 -...
- Page 14 PRINTED CIRCUIT BOARD CONTROL SIDE AV - 14 -...
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Page 15: Block Diagram
BLOCK DIAGRAM - 15 -... -
Page 16: Exploded View
EXPLODED VIEW - 16 -... -
Page 17: Exploded View Parts List
EXPLODED VIEW PARTS LIST PART NO. DESCRIPTION 6306V23001A LCD MODULE,LC230W01-A2 LG TFT COLOR 23 WXGA LCD MODULE 6400GKTX01B SPEAKER,FULLRANGE F1527C-6428-2 8OHM 7/12W 85DB OTHERS 4950V00151B METAL,SHIELD ET . 4810V00765F BRACKET,SIDE AV RU-15LA61 ML012C HIPS 40AF . 4950V00142A METAL,SHIELD NON SIDE AV, 20LA60/15LA60 4950V00149C METAL,FRAME SECC(EGI) . -
Page 18: Replacement Parts List
REPLACEMENT PARTS LIST For Capacitors & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the 2nd and 3rd digits in the CQ : Polyestor RS : Metal Oxide Film RUN DATE : 2003.10.20 P/No. designate; CE : Electrolytic RN : Metal Film RF : Fusible LOCA. - Page 19 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION D845 0DR240000BA FML-24S 400V 10A 70A 40NSEC 0.1MA C316 0CE107DD618 100UF STD 10V M FL TP5 D846 0DR240000BA FML-24S 400V 10A 70A 40NSEC 0.1MA C328 0CE106DF618 10UF STD 16V M FL TP5 ZD101 0DZ330009DF MTZJ33B TP ROHM-K DO34 0.5W 33V 5UA...
- Page 20 12P 2.0MM 100MM GIL-S GIL-T NON C845 181-120P 470 PF 4KV K JE R FL 10 P2001 366-922C 2.5MM 4P GIL-G LG CABLE R/A (B TO C) C846 181-120P 470 PF 4KV K JE R FL 10 P2002 387-A05K 5P 2.5MM 600MM GIL-G GIL-J NON...
- Page 21 MNR-14-E0A-J-101 R OHM 100 OHM 5% P806A 387-A15B 12P 2.5MM 150MM GIL-G GIL-J NON FUSE P810 366-932D 2.5MM 5P GIL-G LG CABLE S (STICK) F801 0FS4001B84B FUSE,SLOW BLOW0FS 4000MA 250 V 8.4 RESISTOR F801 131-098B FUSE,SLOW BLOW4000MA 250 V 5.2X20...
- Page 22 SOCKET (CIRC),DRAWING IS7007 REMOTE CONTROLLER RECEIVER 38.0KHZ PA3000 6726VV0006D TH801 163-048D THERMISTOR,KL15L2R5 +/- 15% 125V TU101 6700VNF019E TUNER,TAFH-H001P LG NTSC FS . VA801 164-003K VARISTOR,SVC621D-14A ILJIN 620V 0% ACCESSORIES 3828VA0387E MANUAL,OWNERS ML027C REMOTE CONTROLLER,38 LG USA BLACK 6710V00126E POWER CORD,SP305+IS034 1800MM...