LG RM-32LZ50 Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. LCD TV
  5. RM-32LZ50
  6. Service manual
LG RM-32LZ50 Service Manual

LG RM-32LZ50 Service Manual

Hide thumbs Also See for RM-32LZ50:
Table of Contents

Advertisement

Quick Links

See also: Owner's Manual
LCD TV

SERVICE MANUAL

CHASSIS : ML-041A
MODEL : RM-32LZ50
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

Advertisement

Table of Contents
loading

Related Manuals for LG RM-32LZ50

Summary of Contents for LG RM-32LZ50

  • Page 1: Service Manual

    LCD TV SERVICE MANUAL CHASSIS : ML-041A MODEL : RM-32LZ50 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2 If you need more information on Computer and Electronic Repair, please visit these websites to improve yourself. http://www.fastrepairguide.com http://www.protech2u.com http://www.plasma-television-repair.com http://www.lcd-television-repair.com Happy Repairing!! Highly Recommended Repair Ebook: If you’re a LCD Monitor repairer, then this is the best guide for you. Why? Because, the author revealed all his LCD Monitor Repairing secrets for you.

  • Page 3: Table Of Contents

    CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SPECIFICATION ..................6 TIMING CHART ..................10 ADJUSTMENT INSTRUCTION..............11 TROUBLE SHOOTING ................17 BLOCK DIAGRAM...................22 WIRING DIAGRAM ..................24 EXPLODED VIEW .................. 25 EXPLODED VIEW PARTS LIST ..............26 REPLACEMENT PARTS LIST ............... 27 SVC. SHEET ....................- 2 -...

  • Page 4: 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 X-RADIATION, Shock, Fire, or other Hazards.

  • Page 5: 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 6 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 7: Specification

    SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to ML-041A chassis. 2. Requirement for Test Testing for standard of each part must be followed in below condition. (1) Temperature: 25°C ±...
  • Page 8 5.General Specification(Monitor) Item Specification Unit Remark Panel 32” TFT WXGA LCD Frequency range DVI-I input H: 31 ~ 61KHz, V: 56 ~ 75Hz 1) Contrast/ Brightness Control function 2) H- Position/ V-Position 3) Tracking : Clock/Phase 4) Auto Configure 5) Reset 1: Y Component Jack 3: Pb...
  • Page 9 6.Optical Feature(LCD Module) Item Specification Remark Viewing Angle R/L, U/D 176,176 <CR 10> Luminance Luminance(cd/ ) Typical Variation MAX/MIN Contrast Ratio ALL white/All back CIE Color Coordinates WHITE Typ. 0.285 Typ. 0.293 Typ. 0.640 Typ. 0.341 Green Typ. 0.287 Typ. 0.610 Blue Typ.
  • Page 10 8.Component Video Input (Y, P Resoluton H-freq(kHz) V-freqHz) Pixel clock Proposed 640 x 480 15.73 60.00 SDTV. DVD 480i RZ, RT, RM 640 x 480 15.63 59.94 SDTV. DVD 480i RZ, RT, RM 704 x 480 31.47 59.94 EDTV 480p RT, RM 720 x 576 15.625...

  • Page 11: Timing Chart

    TIMING CHART VIDEO SYNC << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Total Period Back Porch Video Active Time Front Porch Sync Duration Sync Mode Resolution Frequency Clock Polarity Sort 31.469 25.175 640x480 –...

  • Page 12: Adjustment Instruction

    ADJUSTMENT INSTRUCTION 1. Application Object 2.2.1 EDID DATA [DDC DATA Analog] This instruction is for the application to the LCD TV. 01 02 03 07 08 09 0A 0B 0C 0D 0E 0F FF FF FF FF FF FF 00 1E 6D 45 75 01 01 2.
  • Page 13 3. Shipping Conditions ITEM CONDITION REMARK Power Volume Level Main Pcture 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 NTSC OPTION Tint Sound Flat Balance Special...
  • Page 14 *Option(PAL) ITEM CONDITION REMARK ITEM CONDITION REMARK Option 1 Option 3 Side AV 0: Side AV Off Language 0: Eng Only 1: Side AV On 1: EU5 SCART 0: SCART Off 2: 12 nations(Europe) 1: SCART On 3: Eng + Chines 0: PC Off 4: Eng + Arab + Urdu 1: PC On...
  • Page 15 *Optionel(NTSC) ITEM CONDITION REMARK Side-AV 0 : Component2 ON 1 : Video2 On ToolOption 0 : 50/41 Tool 1 : 30 Tool HDCP 0 : HDCP ON 1 : HDCP OFF Speaker Output 0 : Speaker Output => 3W 1 : Speaker Output => 5W DownLoad 0 : DownLoad Off 1 : DownLoad ON...
  • Page 16 EDID ADJUSTMENT Windows EDID V1.0 User Manual 2. EDID Read & Write 1) Run WinEDID.exe Operating System: MS Windows 98, 2000, XP Port Setup: Windows 98 => Don’t need setup Windows 2000, XP => Need to Port Setup. This program is available to LCD Monitor only. 1.

  • Page 17: Svc Remocon

    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 18: Troubleshooting

    TROUBLESHOOTING No power :[A]Process (LED indicator off) Check short of main B/D Check 24V or 12V or Change Power B/D Faill of Power B/D Pass Check Output of Change L3, L1300 Faill L3, L1300 Pass Check Output of Change L808,L809 Change IC1300,IC4 or IC8 IC1300, IC4 or IC8 (F801,F802)
  • Page 19 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 20 No Raster on Component signal Repeat [A] Process Pass Check the signal of Change Q310,Q315,Q316 Q310,Q315,Q316 Faill Pass Re-soldering or Check the input/ Change the defect part Faill output of IC1 Re-soldering or Check the input/output Change the defect part Faill of IC500, IC600 Pass...
  • Page 21 No Raster on AV Signa No Raster on TV(RF) signal (Video1,Video2, S-Video) Check 5V, 33V of TU1000 Repeat Check the output of Re-soldering or [A] Process TU1000 Faill Faill Change the defect part Pass Check the signal of Change C316,C317, C316,C317,Q308,Q313 Q308,Q313 Faill...
  • Page 22 No Sound Check the Change source input input source Faill Pass Re-soldering or Check the input/output Change the defect part of IC1 Faill Pass Re-soldering or Check the input/output Change the defect part of IC100,IC101 Faill Pass Check the speaker Change speaker Faill Pass...

  • Page 23: Block Diagram

    BLOCK DIAGRAM LA7222C - 22 -...
  • Page 24 BLOCK DIAGRAM DESCRIPTION 1. Video controller unit and display data conversion unit The video controller unit recives the video signal input from the tuner, AV port (CVBS ,S-Videoand component ). Comb fiter separates the YC component. The composite signal from the vcti goes to the 3-D comb filter and comb filter gives YC signal as output which goes back to the Vcti.

  • Page 25: Wiring Diagram

    - 24 -...

  • Page 26: Exploded View

    - 25 -...

  • Page 27: Exploded View Parts List

    CABINET ASSEMBLY, RM-32LZ50.ATPLKTA BRAND 3090TKE014 51SF 3091TKE019D CABINET ASSEMBLY, RM-32LZ50 BRAND 3090TKE014 SKD 6304FLP163A LCD(LIQUID CRYSTAL DISPLAY), LC320W01-A6 LG PHILPS TFT COLOR WXGA, 16:9, 500NITS, 16MS, 8BIT, LVDS 3809TKE018A BACK COVER ASSEMBLY, RM-32LZ50 3808TKE014 . 3809TKE018J BACK COVER ASSEMBLY, RM-32LZ50 3808TKE014 SET SOUTH AMERCIA...

  • Page 28: 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 29 DATE: 2004. 10. 28. DATE: 2004. 10. 28. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C511 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C632 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP C512 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
  • Page 30 DATE: 2004. 10. 28. DATE: 2004. 10. 28. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C927 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R C928 0CH3104K566 0.1UF 50V 10% X7R 2012 R/TP...
  • Page 31 DATE: 2004. 10. 28. DATE: 2004. 10. 28. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0CC102CK41A 1000PF 1608 50V 5% R/TP NP0 C814 0CE227WF6DC 220UF MVK 16V 20% R/TP(SMD) S 0CC102CK41A 1000PF 1608 50V 5% R/TP NP0 C815...
  • Page 32 DATE: 2004. 10. 28. DATE: 2004. 10. 28. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION IC1300 0IMCRMZ001A MP1583DN MONOLITHIC POWER SYS L401 6210TCE001G HH-1M3216-501 CERATEC 3216MM IC1301 0IMCRMZ001A MP1583DN MONOLITHIC POWER SYS 6210TCE001G HH-1M3216-501 CERATEC 3216MM IC500...
  • Page 33 DATE: 2004. 10. 28. DATE: 2004. 10. 28. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1012 0RH7502D622 75K 1/10W 5 D.R/TP R713 0RH0752D622 75 1/10W 5 D.R/TP R1014 0RH1000D622 100 1/10W 5 D.R/TP R715 0RH1202D622...
  • Page 34 DATE: 2004. 10. 28. DATE: 2004. 10. 28. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R349 0RH1002D622 10K OHM 1 / 10 W 2012 5.00% D R122 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP R352 0RH1002D622 10K OHM 1 / 10 W 2012 5.00% D...
  • Page 35 DATE: 2004. 10. 28. DATE: 2004. 10. 28. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R468 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP R718 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP R469 0RJ1500D677 150 OHM 1/10 W 5% 1608 R/TP...
  • Page 36 R1606 0RD1500Q609 150 1/4W(3 5% TA52 R966 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP SW1600 140-313A TACT 2LEAD 100G(TA) LG C&D NO R967 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP LED1600 0DLBE0128AA BRIGHT LED ELECTRONICS BL-BUB R968 0RJ0222D677...
  • Page 39 Oct., 2004 P/NO : 3828TSL108L Printed in Korea...
  • Page 40 If you need more information on Computer and Electronic Repair, please visit these websites to improve yourself. http://www.fastrepairguide.com http://www.protech2u.com http://www.plasma-television-repair.com http://www.lcd-television-repair.com Happy Repairing!! Highly Recommended Repair Ebook: If you’re a LCD Monitor repairer, then this is the best guide for you. Why? Because, the author revealed all his LCD Monitor Repairing secrets for you.

Table of Contents