LG RT-42PZ90 Service Manual
LG RT-42PZ90 Service Manual

LG RT-42PZ90 Service Manual

Plasma monitor/tuner
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P/NO : 3828VD0129S
All manuals and user guides at all-guides.com
Aug., 2003
Printed in Korea
e-mail:http://www.LGEservice.com/techsup.html
PLASMA MONITOR/TUNER
SERVICE MANUAL
CHASSIS : RF-03FA
MODEL : RT/MT/MZ-42PZ90/H/B/R/S
MODEL :
RT/MT-42PZ92/H/B/R/S
MODEL :
RT/MT/MZ-42PZ91M/91V/B/R/S
MODEL :
RT/MT-42PZ93M/93V/B/R/S
MODEL :
RT/RZ-BA50
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
website:http://biz.LGservice.com

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Summary of Contents for LG RT-42PZ90

  • Page 1 All manuals and user guides at all-guides.com website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html PLASMA MONITOR/TUNER SERVICE MANUAL CHASSIS : RF-03FA MODEL : RT/MT/MZ-42PZ90/H/B/R/S MODEL : RT/MT-42PZ92/H/B/R/S MODEL : RT/MT/MZ-42PZ91M/91V/B/R/S MODEL : RT/MT-42PZ93M/93V/B/R/S MODEL : RT/RZ-BA50 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Aug., 2003 P/NO : 3828VD0129S Printed in Korea...
  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS SAFETY PRECAUTIONS ...................3 DESCRIPTION OF CONTROLS ................ 4 SPECIFICATIONS ....................8 ADJUSTMENT INSTRUCTIONS ..............17 BLOCK DIAGRAM .....................19 ASSEMBLY METHOD..................20 PRINTED CIRCUIT BOARD ................25 EXPLODED VIEW ....................30 EXPLODED VIEW PARTS LIST ................31 REPLACEMENT PARTS LIST................33 SCHEMATIC DIAGRAM ..................
  • Page 3: Safety Precautions

    All manuals and user guides at all-guides.com SAFETY PRECAUTIONS IMPORT ANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by 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 4: Description Of Controls

    All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS - Shown is a simplified representation of the Monitor. - Here shown may be somewhat different from your set. <Front Panel Controls> ON/OFF Buttons Main Power Button INPUT SELECT Button VOLUME ( ) Buttons Remote Control Sensor...
  • Page 5 All manuals and user guides at all-guides.com <Back Panel> RT-BA50 DC IN ANT IN REMOTE AV(EXPANDED) INPUT AV OUTPUT +75 Ω (DC 12V) CONTROL EXPANDED OUTPUT EXPANDED AUDIO (MONO) VIDEO AUDIO VIDEO OUTPUT DC IN AV(EXPAND AV OUT- REMOTE (DC 12V) ED) INPUT CONTROL ANTENA INPUT...
  • Page 6 All manuals and user guides at all-guides.com - This function works only when the PDP Tuner is installed on the LG plasma display monitor. Installing PDP Tuner on the Monitor 1. Turn the monitor off and disconnect the mains plug.
  • Page 7 All manuals and user guides at all-guides.com Watching VCR - When connecting the Monitor to external equipment, match the colours of connecting ports (Video - yellow, Audio (L) - white, Audio (R) -red). - Connect the VIDEO INPUT socket (yellow) with the BNC-RCA adaptor to the VIDEO INPUT on the Monitor. - If you have a mono VCR, connect the audio cable from the VCR to the AUDIO (L/MONO) input on the Monitor.
  • Page 8 All manuals and user guides at all-guides.com Watching external AV source DC IN ANT IN AV(EXPANDED) INPUT AV OUTPUT REMOTE +75 Ω (DC 12V) CONTROL EXPANDED OUTPUT - When connecting the monitor to an external source, match the colours of AUDIO (MONO) VIDEO...
  • Page 9 All manuals and user guides at all-guides.com Connecting PC - To enjoy vivid picture and sound, connect a PC to the Monitor. - Avoid keeping a fixed image on the monitor’s screen for a long period of time. The fixed image may become permanently imprint- ed on the screen;...
  • Page 10 PLAY size. SPLIT ZOOM VCR BUTTONS Enlarge the screen with regular Controls a LG video cassette ration. recorder. Installing Batteries • Open the battery compartment cover on the back side and insert the batteries with correct polarity.
  • Page 11 All manuals and user guides at all-guides.com Accessories POWER MULTIMEDIA INPUT SELECT I/II/ PIP/DW TEXT/ PR-/ PR+/ SWAP PIP INPUT MENU MUTE REVEAL SIZE UPDATE HOLD TIME 1.5V INDEX MODE LIST WIN.POSITION WIN.SIZE SLEEP SPLIT ZOOM ZOOM- ZOOM+ STOP P/STILL PLAY Owner’s Manual Alkaline batteries...
  • Page 12: Specifications

    P/N of RPL 5) Warm up set for more than 20min before the measurement. Test and Inspection Method 1) Performance:Follow the Standard of LG TV test 2) Extra standards Safety: Follow the standard of CE, IEC EMC : Follow the standard of CE, IEC...
  • Page 13 All manuals and user guides at all-guides.com General Specification Item Specification Remark Display Screen Device 42inch wide Colour Desplay Module Aspect Ratio 16 : 9 PDP Module PDP42V5####, Fish Bone Screen Filter 45% Total light ransmittance Maker : NBK (E-Mesh) 1) Temp.
  • Page 14 All manuals and user guides at all-guides.com (3) MT-42PZ4x (MT-42PZ44/45V/46) Remark Item Specification Market N-EU RGB Input VGA, SVGA, XGA, SXGA 60Hz DVI Input Digital RGB Input Video Input System PAL, SECAM, NTSC S-Video Input PAL, SECAM, NTSC Component Input 480i, 480p, 576i, 576p, 1080i, 1152i Audio Input L/R 2 group...
  • Page 15 All manuals and user guides at all-guides.com Specification Remark Item RGBHV Feature RGB out - D - Sub 15pin (MNT) L/ R For RGB Input Audio input - Phone Jack 115200bps RS-232C - D - Sub pin SPK Output L/ R External Speak output 36Pin Tuner Box Control...
  • Page 16 All manuals and user guides at all-guides.com Item Specification Remark 4 - Mode MENU Picture Status Mode GDynamic, Standard, Mild, User - Default : Standard (picture) 4 - Mode Color Status Mode GNormal (9,500 °K ) - Default : Normal G Cool (12,000 °K ) G Warm (8,500 °K )
  • Page 17 All manuals and user guides at all-guides.com Item Specification Remark Default : Normal OSD Rotate G Normal Enable For Pivot (Optional) G Rotate : OSD Rotate MENU Auto Configure RGB PC (Screen) Disable For Auto : RF/ AV/ S-AV/ Component-i DW Mode 4:3 : All 16:9 : All...
  • Page 18 All manuals and user guides at all-guides.com Item Specification Remark - Scart AV B’D TV$AV1(EXP)$AV2(EXP)$AV1 MENU Input $AV2$S-VIDEO$RGB$DVI - Scart Tuner Box (Main) (PIP/DW) - Scart V B’D TV$AV(EXP)$AV1$AV2$ - RCA Tuner Box S-VIEDO$RGB$DVI OFF, DW1, DW2 OFF, ON Equal Main Input Sub Input * Display Condition 1) Identity of Input Source is not Main/ Sub Display...
  • Page 19 All manuals and user guides at all-guides.com Item Specification Remark 4H Comb Comb Filter VPC3230 Adaptive DCDI FLI2300/ FLI231 X (Option) Film Mode Motion Detection Noise Reduction Component Video Input (Y, P Resolution H-freq (kHz) V-freq (Hz) Pixel clock (MHz) Proposed 720 x 480 15.625...
  • Page 20 All manuals and user guides at all-guides.com Resolution H-freq (kHz) V-freq (Hz) Pixel clock (MHz) Proposed 48.363 60.00 1024 x 768 65.00 VESA(XGA) 1024 x 768 56.476 70.06 75.00 VESA(XGA) 60.023 75.02 1024 x 768 78.75 VESA(XGA) 1152 x 864 54.348 60.05 80.00...
  • Page 21: Adjustment Instructions

    All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 1. Application Object CVBS and RGB1 input part at the same time in the Pattern Generator. These instructions are applied to all of the PDP monitor/ (3) To check the MAX-Bias, input Full White (255 gray) signal Tuner , RF-03FA chassis.
  • Page 22 All manuals and user guides at all-guides.com (2) Vs Adjustment ¤ Connect + terminal of D.M.M to Vs pin of P805 and connect – terminal to GND pin of CN803. ¤Ł After turning the VR551, voltage of D.M.M adjustment as same as Vs voltage which on label of panel Right/Top.
  • Page 23: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM - 23 -...
  • Page 24: Assembly Method

    All manuals and user guides at all-guides.com ASSEMBLY METHOD 1. MODULE of <a> part and PLATE A/V unite two things. 2. Unite after put on BACK COVER INNER of <b> part . 3. Disassembly is opposite to Assembly. NOTE> Working sequence of <a> Part is different from <b> Part. - 24 -...
  • Page 25: Printed Circuit Board

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN (TOP) - 25 -...
  • Page 26 All manuals and user guides at all-guides.com MAIN (BOTTOM) - 26 -...
  • Page 27 All manuals and user guides at all-guides.com AV BOARD (TOP) AV BOARD (BOTTOM) AV FIX BOARD (TOP) AV FIX BOARD (BOTTOM) - 27 -...
  • Page 28 All manuals and user guides at all-guides.com CONTROL BOARD (TOP) CONTROL BOARD (BOTTOM) SPEAKER (TOP) POWER SWITCH SPEAKER (BOTTOM) - 28 -...
  • Page 29 All manuals and user guides at all-guides.com MEMO - 29 -...
  • Page 30: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW <Tuner> - 30 -...
  • Page 31: Exploded View Parts List

    6871QRH034A PWB(PCB) ASSEMBLY,DISPLAY XRRT ASSY HAND INSERT 42SD5_XR_SEPERATE(4 LAYER) 6871QZH030A PWB(PCB) ASSEMBLY,DISPLAY ZSUS ASSY HAND INSERT 42SD5(YZ SEPARATE) 3091V00516A CABINET ASSEMBLY, MZ-42PZ90 NON NON LG BRAND DARK SILVER 4980V00237A SUPPORTER, FILTER TOP AL FD-42X3 4980V00238A SUPPORTER, FILTER BOTTOM AL FD-42X3 4980V00239A SUPPORTER, FILTER R&L AL FD-42X3...
  • Page 32: Replacement Parts List

    All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST (MONITOR) LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC904 0IKE704200J IC, KIA7042AF SOT-89 TP 4.2V VOLTAGE DETECTOR 0IMCRTI001A IC915 IC, SN74HCT157D 16P R/TP RL-JA10 IC001 0ISO208900A IC, CXA2089Q 48QFP BK A/V SWITCH IC917 0IFA742530B IC, JEDEC MS-012 R/TP IC,DUAL 4-INPUT MULTIPLEXER...
  • Page 33 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 34 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 35 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 36 All manuals and user guides at all-guides.com For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 37 3828VA0338A MANUAL,OWNERS RF03FA LG EN 100A TX 026H 3828VA0338C MANUAL,OWNERS RF03FA LG AR/EN 100A TX 026H 3828VA0388D MANUAL,OWNERS Z03 LG RU/EN 100A TX 026H 7YRS 3828VA0388J MANUAL,OWNERS RF03FA LG RU/EN 100A TX 026H 6710V00100A REMOTE CONTROLLER, RF02LA STEREO MZ-37PZ46 6410VEH003C...
  • Page 38 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST (TUNER) LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q410 0TR150400BA TR, CHIP 2SA1504S(ASY) KEC Q411 0TR150400BA TR, CHIP 2SA1504S(ASY) KEC IC001 0ISM555000A IC, SDA5550 MQFP100 BK MICOM TXT MC006A Q601 0TR387500AA TR, CHIP 2SC3875S(ALY) KEC...
  • Page 39 CONNECTOR, MDR-36 36PIN 2.54MM CABLE JACK 100UF STD 16V M FL TP5 C605 0CE106DF618 10UF STD 16V M FL TP5 P106 366-921D CONNECTOR, 2.5MM 5P GIL-G LG CABLE C611 0CE107DF618 100UF STD 16V M FL TP5 JACK C612 0CE107DF618 100UF STD 16V M FL TP5...
  • Page 40 All manuals and user guides at all-guides.com LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION FILTER & CRYSTAL L001 6210VC0006A FILTER, FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L010 6210VC0006A FILTER, FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP L101 FILTER, FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 6210VC0006A L102 6210VC0006A...
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  • Page 51 All manuals and user guides at all-guides.com ¡ÆFor europe...
  • Page 52 All manuals and user guides at all-guides.com ¡ÆFor asia...
  • Page 53 All manuals and user guides at all-guides.com SVC. SHEET : 3854V A0133A-S1 SVC. SHEET : 3854V A0133A-S2 SVC. SHEET : 3854V A0133A-S3 SVC. SHEET : 3854V A0133A-S4...

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