LG 26LZ5RV-ZC Service Manual
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LG 26LZ5RV-ZC Service Manual

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LCD TV
SERVICE MANUAL
CHASSIS : ML-041D
MODEL : 26LZ5RV-ZC / 26LZ5RV-TC
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
DVD / CD PLAYER
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG 26LZ5RV-ZC

  • Page 1 LCD TV SERVICE MANUAL CHASSIS : ML-041D MODEL : 26LZ5RV-ZC / 26LZ5RV-TC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. DVD / CD PLAYER...

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SERVICING PRECAUTIONS..............4 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION..............11 TROUBLE SHOOTING ................15 BLOCK DIAGRAM...................21 WIRING DIAGRAM ..................24 EXPLODED VIEW .................. 25 EXPLODED VIEW PARTS LIST ..............26 REPLACEMENT PARTS LIST ............... 27 SVC. SHEET ....................- 2 -...

  • Page 3: Product Safety

    SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards.

  • Page 4: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service unit under test. manual and its supplements and addenda, read and follow the 2. After removing an electrical assembly equipped with ES SAFETY PRECAUTIONS on page 3 of this publication. devices, place the assembly on a conductive surface such as NOTE: If unforeseen circumstances create conflict between the aluminum foil, to prevent electrostatic charge buildup or...
  • Page 5 IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through Circuit Board Foil Repair which the IC leads are inserted and then bent flat against the Excessive heat applied to the copper foil of any printed circuit circuit foil. When holes are the slotted type, the following technique board will weaken the adhesive that bonds the foil to the circuit should be used to remove and replace the IC.

  • Page 6: Specification

    SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to ML-041D chassis. 2. Requirement for Test Testing for standard of each part must be followed in below condition. (1) Temperature: 25°C ±...
  • Page 7 4.General Specification Item Specification Unit Remark Panel 26" TFT WXGA LCD Frequency range H : 31 ~ 61Khz DVI-I input V : 56 ~ 75Hz Control Function 1) Contrast/Brightness 2) H-Position / V-Position 3) Tracking : Clock / Phase 4) Auto Configure 5) Reset Comoponent Jack 1 : Y...
  • Page 8 5.Optical Feature(LCD Module) Item Specification Remark Viewing Angle R/L, U/D 176,176 <CR 10> Luminance Luminance (cd/m2) Typical Variation MAX / MIN Contrast Ratio All white / All black CIE Color Coordinates White Typ. 0.284 0.285 0.289 Typ. 0.295 0.293 0.303 Typ.
  • Page 9 7. Component Video Input (Y, PB, PR) Specification Proposed Resolution H-freq(kHz) V-freq(Hz) 640x480 15.73 SDTV, DVD 480i 640x480 15.63 59.94 SDTV, DVD 480i 720x576 15.625 50.00 SDTV, DVD 625 Line 8. PC INPUT Mode table [Timming chart of Receivable Mode] Resolution H-freq(kHz) V-freq.(Hz)
  • Page 10 9. Customer Menu Setup [shipped condition: PAL] Item Condition Remark Power Volume Level Main Picture Input Main Last Channel Pr 01 Mute 16 : 9 Station Auto Program Manual Program Program Edit Favorite Program None Picture Dynamic Dynamic Contrast Brightness Colour Sharpness Tint...

  • Page 11: Adjustment Instruction

    ADJUSTMENT INSTRUCTION 1. Application Object 3.4 Video signal Gain/Offset Adjustment(Auto adjustment) - Execution of White Pattern during Heat Run over 30min This instruction is for the application to the LCD TV. - Connect to the LCD TV AV1 Scart input terminal with Patten Generator(MSPG-925FS)-26LZ5V-ZC - Connect to the LCD TV AV Input terminal with Patten 2.
  • Page 12 3.5 Component signal Gain/Offset Adjustment(Auto adjustment) 3.6 EDID (The Extended Display Identification Data) - Execution of RF no signal during Heat Run over 30min - Connect D-Sub to DVI-I Cable to DVI-I Jack. - Connect to the LCD TV Component1 terminal with Patten - Confirm the pc display by inputting the Analog signal.
  • Page 13 * Option(PAL) Item Condition Remark Option1 SideAV 0 : SideAV Off 1 : SideAV On SCART 0 : SCART Off 1 : SCART On 0 : PC Off 1 : PC On SideComp 0 :SideComp Off 1 :SideComp ON 16:9 0 : Wide OFF 1 : Wide On 200PR...
  • Page 14 SVC REMOCON FUNTION REAMARK To turn the TV on or off POWER To turn the TV on automatically if the power is supplied to the TV. (Use the POWER ON POWER key to deactivate): It should be deactivated when delivered. To activate the mute function.

  • Page 15: Troubleshooting

    TROUBLESHOOTING No power :[A]Process (LED indicator off) No Power Check 24V or 12V (LED indicator off) Faill of Power B/D Pass Check Output of Change L3, L1300 Faill L3, L1300 Check Output of Change IC1300, IC4 or IC6 IC1300, IC4 or IC6 Faill Pass Change LED Assy...
  • Page 16 No Raster :[B]Process Check LED Status Repeat A PROCESS on display unit Faill Check L900,L901 Change L900,L901, L902,L903 L902,L903 Faill Pass Check the input/ Change IC901 Output of IC901 Faill Pass Check inverter Change inverter Connector or inverter connector or inverter Faill Pass Change panel link...
  • Page 17 No Raster on Component signal Repeat [A] Process Pass Check the signal of Change Q310,Q315,Q316 Q310,Q315,Q316 Faill :[C]Process Pass Re-soldering or Check the input/ Change the defect part Faill output of IC800 Check IC800 Pass Re-soldering or Check the input/ Change the defect part Faill output of IC600...
  • Page 18 No Raster on AV Signa No Raster on TV(RF) signal (Scart1.Scart2,S-Video) Check 5V,33V of TU1000, Repeat Check the output of Re-soldering of Change the [A] Process TU1000 Faill Faill defect part Pass Change Check the signal of Q317,Q318,Q308, Q317,Q318,Q308,Q313 Faill Q313 Pass :[C]Process...
  • Page 19 No Raster on DVD Signal Repeat [A] Process Pass Check the signal of Check P1200,P1202 or R1211,R1212,R1213 DVD Cable Faill Pass :[C]Process - 19 -...
  • Page 20 No Sound(RF,SIDE AV) No Sound(Scart1/2,DVD,PC) Check the Change source input input source Faill Pass Re-soldering or Check the input/output Change the defect part Faill of IC1 Check X11 Pass Re-soldering or Check the input/ Change the defect part output of IC401 Faill Check IC403,X601 Pass...

  • Page 21: Block Diagram

    BLOCK DIAGRAM(26LZ5RV-ZC) - 21 -...
  • Page 22 BLOCK DIAGRAM(26LZ5RV-TC) - 22 -...
  • Page 23 BLOCK DIAGRAM DESCRIPTION 1. Video Controller Unit & Display Data Conversion Unit The video controller unit receives the video signals inputted through the tuner, AV port, and converts them into an ITU656 signal through the microcomputer (VCTI) combined with the video decoder that integrates various functions in one chip.

  • Page 24: Wiring Diagram

    WIRING DIAGRAM 5P-6631T25023Y 4P-6631T25023X 12P-6631T25019K 14P-6631T20032A 6P-6631T20033B 10P-6631T20033F 14P-6631T20033E 20P-6631T11020A 5P-6631T20033C 30P-6631T20040A 3P-6631T20033D 30P-6631T20040B 3P-6631T20031G - 24 -...

  • Page 25: Exploded View

    - 25 -...

  • Page 26: Exploded View Parts List

    CABINET ASSEMBLY, RZ-26LZ50 BRAND 3090TKE006A 407AF LGEWA C/SKD 3091TKE013A CABINET ASSEMBLY, RZ-26LZ50 BRAND 3090TKE006A 407AF-tc 6304FLP214A LCD(LIQUID CRYSTAL DISPLAY), LC260W01-A5KA LG PHILPS TFT COLOR LEAD FREE 3809TKE013B BACK COVER ASSEMBLY, RZ-26LZ50 3808TKE005A 407AF LGEWA C/SKD 3809TKE013J BACK COVER ASSEMBLY, RT-26LZ50 3808TKE005A 40AF ATL-tc...

  • Page 27: Replacement Parts List

    REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN, CH : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit in the CQ : Polyestor RS : Metal Oxide Film P/No. means as follows; CE : Electrolytic RN : Metal Film CF : Fixed Film RH : CHIP, Metal Glazed(Chip)
  • Page 28 DATE: 2005. 7. 15. DATE: 2005. 7. 15. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C606 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C911 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C608 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
  • Page 29 0CH8476F691 47UF 16V 20% 105STD (CYL) R-26LZ5RV-TC C612 0CK473CK56A 47000PF 1608 50V 10% R/TP X C200 0CH6221K416 220PF 2012 50V 5% NP0 -26LZ5RV-ZC C613 0CK473CK56A 47000PF 1608 50V 10% R/TP X C201 0CH8106F691 10UF 16V 20% 105STD (CYL) R-26LZ5RV-TC C626 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R...
  • Page 30 22UF 16V 20% 105STD (CYL) R C924 0CH6080K116 8PF 2012 50V 0.5 PF C0G R/T C219 0CH8226F691 22UF 16V 20% 105STD (CYL) R-26LZ5RV-ZC C925 0CH6080K116 8PF 2012 50V 0.5 PF C0G R/T C221 0CH8226F691 22UF 16V 20% 105STD (CYL) R-26LZ5RV-ZC...
  • Page 31 "KA7809R, FAIRCHILD 2P D-PAK" D704 0DZ510009EE UDZ S 5.1B TP ROHM-K SOD323 IC905 0IPMGFA061A "FAN1587AD33X FAIRCHILD 3P,D" ZD215 0DZ510009EE UDZ S 5.1B TP ROHM-K SOD323-26LZ5RV-ZC IC906 0IPMGSG018D LD1086DT18TR-LF SGS-THOMSON ZD216 0DZ510009EE UDZ S 5.1B TP ROHM-K SOD323-26LZ5RV-ZC IC950 0IPMGNS004B LM2676S-ADJ NATIONAL SEMICO...
  • Page 32 0RRZVTA001A MNR-14-E0A-J-101 R OHM 100 L200 0LC1020101A 1UH 10% 2012 R/TC FI-B2012-26LZ5RV-ZC L303 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D-26LZ5RV-ZC L201 0LC1020101A 1UH 10% 2012 R/TC FI-B2012-26LZ5RV-ZC 0RH3301D622 3.3K OHM 1 / 10 W 2012 5.00 L306...
  • Page 33 1K OHM 1 / 10 W 2012 5.00% R1203 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D R394 0RH6800D622 680 OHM 1 / 10 W 5% D R/TP-26LZ5RV-ZC R1204 0RH0000D622 0 OHM 1 / 10 W 2012 5.00% D R395 0RH6800D622...
  • Page 34 0RJ3301D677 3.3K OHM 1/10 W 5% 1608 R/T 0RH1000D622 100 OHM 1 / 10 W 2012 5.00% R205 0RJ0682D677 68 OHM 1/10 W 5% 1608 R/TP-26LZ5RV-ZC R852 0RH2200D622 220 OHM 1 / 10 W 2012 5.00% R206 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP-26LZ5RV-TC...
  • Page 35 75 OHM 1/10 W 5% 1608 R/TP-26LZ5RV-TC R5017 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP R256 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP-26LZ5RV-ZC R5019 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP R257 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP-26LZ5RV-ZC...
  • Page 36 100 OHM 1/10 W 5% 1608 R/TP R811 0RJ2200D677 220 OHM 1/10 W 5% 1608 R/TP R945 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP-26LZ5RV-ZC R812 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP R945 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP-26LZ5RV-TC...
  • Page 37 PART NO. DESCRIPTION / SPECIFICATION R1706 0RN2701F409 2.7K OHM 1/6 W 1.00% TA52 SW1700 140-313A TACT 2LEAD 100G(TA) LG C&D SW1701 140-313A TACT 2LEAD 100G(TA) LG C&D SW1702 140-313A TACT 2LEAD 100G(TA) LG C&D SW1703 140-313A TACT 2LEAD 100G(TA) LG C&D SW1704 140-313A TACT 2LEAD 100G(TA) LG C&D...
  • Page 40 Jul. 2005 P/NO : 38289S0004M Printed in Korea...

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