LG MT-42PZ44 Service Manual

Plasma monitor/tuner
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PLASMA MONITOR/TUNER

SERVICE MANUAL

CHASSIS : RF-03FA
MODEL : MT-42PZ44/S/45M/V/VB/47M/V
MODEL :
MZ-42PZ44/S/45V/VS
MODEL :
RT-42PZ45V
MODEL :
RT/RZ-BA50
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

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Summary of Contents for LG MT-42PZ44

  • Page 1: Service Manual

    PLASMA MONITOR/TUNER SERVICE MANUAL CHASSIS : RF-03FA MODEL : MT-42PZ44/S/45M/V/VB/47M/V MODEL : MZ-42PZ44/S/45V/VS MODEL : RT-42PZ45V MODEL : RT/RZ-BA50 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2: Table Of Contents

    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................32 SCHEMATIC DIAGRAM ..................- 2 -...
  • Page 3: Safety Precautions

    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

    DESCRIPTION OF CONTROLS <Front Panel Controls> ON/OFF Buttons Main Power Button INPUT SELECT Button VOLUME ( ) Buttons Remote Control Sensor MENU Button Power Standby Indicator Illuminates red in standby mode, Illuminates green when the Monitor is turned on <Back Panel> AUDIO (MONO) ( ) R...
  • Page 5: Back Panel

    <Back Panel> RT-BA50 DC IN ANT IN AV(EXPANDED) INPUT AV OUTPUT REMOTE +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 RZ-BA50 REMOTE DC IN ANT IN...
  • Page 6 - 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. 2. Carefully place the Monitor screen side down on a cushioned surface that will protect the monitor screen from damage.
  • Page 7 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 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 (MONO) AUDIO VIDEO AUDIO VIDEO AUDIO/VIDEO input jacks on the monitor with the output jacks on the audio/video equipment: Video = yellow, Audio (Left) = white, Audio (Right) = red.
  • Page 9 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; use a screen saver when possible. - Connect PC to the RGB INPUT or DVI INPUT port of the Monitor;...
  • Page 10 - When using the remote control aim it at the remote control sensor of the Monitor. - There's maybe a defect in consecutive operation of remote control in specified brightness according to this monitor feature. - This remote control handset is the one offered when purchasing a LG plasma display monitor. POWER INPUT SELECT Switches the Monitor on from stand- by or off to standby.
  • Page 11 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 BNC-RCA adaptor Remote Control handset (optional) Phone scart cable (Optional)
  • 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 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) Operating Environment 1) Temp. : 0 ~ 40 °C LGE Mark SPEC 2)Humidity : below 85% Storage Environment...
  • Page 14 (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...
  • Page 15 Item Specification Remark RGBHV Feature RGB out (MNT) - D - Sub 15pin L/ R For RGB Input Audio input - Phone Jack RS-232C 115200bps - D - Sub pin SPK Output L/ R External Speak output 36Pin Tuner Box Control Expanded Control MZ-42PZ4x 480i/ 480p/ 576i/ 576p...
  • Page 16 Item Remark Specification 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 ) G User (RGB Control) G R, G, B...
  • Page 17 Item Remark Specification 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 14:9 : RF/ AV/ S-AV/ Component-i ZOOM : RF/ AV/ S-AV/ Component-i Default :100...
  • Page 18 Item Remark Specification - 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 2) Don’t allow PIP/DW between graphic signals of 480p - 3) When this condition appear,swap the Main/Sub screen and old...
  • Page 19 Item Specification Remark 4H Comb Comb Filter VPC3230 Adaptive FLI2300/ FLI231 DCDI X (Option) Film Mode Motion Detection Noise Reduction Component Video Input (Y, P Resolution H-freq (kHz) V-freq (Hz) Pixel clock (MHz) Proposed 15.625 60.00 720 x 480 13.500 480I 720 x 480 31.250...
  • Page 20 Resolution H-freq (kHz) V-freq (Hz) Pixel clock (MHz) Proposed 1024 x 768 48.363 60.00 65.00 VESA(XGA) 1024 x 768 56.476 70.06 75.00 VESA(XGA) 1024 x 768 60.023 75.02 78.75 VESA(XGA) 54.348 60.05 1152 x 864 80.00 VESA(SXGA) 63.995 70.01 1152 x 864 94.20 VESA(SXGA) 67.500...
  • Page 21: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS CVBS and RGB1 input part at the same time in the Pattern 1. Application Object 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. into CVBS and RGB1 input part at the same time in the Pattern Generator.
  • Page 22: Required Equipment

    (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

    BLOCK DIAGRAM - 23 -...
  • Page 24: Assembly Method

    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

    PRINTED CIRCUIT BOARD MAIN (TOP) - 25 -...
  • Page 26 MAIN (BOTTOM) - 26 -...
  • Page 27 AV BOARD (TOP) AV BOARD (BOTTOM) AV FIX BOARD (TOP) AV FIX BOARD (BOTTOM) - 27 -...
  • Page 28 CONTROL BOARD (TOP) CONTROL BOARD (BOTTOM) SPEAKER (TOP) POWER SWITCH SPEAKER (BOTTOM) - 28 -...
  • Page 29 MEMO - 29 -...
  • Page 30: Exploded View

    EXPLODED VIEW <Tuner> - 30 -...
  • Page 31: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Part No. Description 5900V04009A FAN,DC 412F/39M PAPST 40*40*10 12V/45MA 4300RPM 17 PDP 42” 4980V00985B SUPPORTER, FAN EGI SKD 6348Q-E036A PDP, 42” 16:9 852*480 PDP42V50000(KK MODEL), FOR INTERCOMPANY DOMESTIC, WOODEN PALLET 6348Q-E038B PDP, 42” 16:9 852*480 PDP42V50330.ADLGA 6871QDH051A PWB ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42SD5_YDRV_TOP_TI_4LAYER 6871QDH052A...
  • Page 32: Replacement Parts List

    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 IC915 0IMCRTI001A IC, SN74HCT157D TEXAS INSTRUMENT 16P R/TP RL-JA10 IC001 0ISO208900A IC, CXA2089Q 48QFP BK A/V SWITCH 0IFA742530B IC917 IC, 74ACT253SC 16P-SOIC, JEDEC MS-012 R/TP...
  • Page 33 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 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 P802 366-932B CONNECTOR, WAFER 2.5MM 3P GIL-G C980 0CE107SF6DC 100UF MVG 16V M SMD R/TP P803 366-932B CONNECTOR, WAFER 2.5MM 3P GIL-G LG 100UF MVG 16V M SMD R/TP C981 0CE107SF6DC JACK C982 0CE476SF6DC 47UF MVG 16V M SMD R/TP...
  • Page 36 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 FILTER, FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0388A MANUAL,OWNERS RF03FA EN 100A TX 026H L887 6210VC0006A FILTER, FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0388B MANUAL,OWNERS RF03FA LG CH 100A TX S LOCAL 6210VC0006A L888 FILTER, FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP 3828VA0388C MANUAL,OWNERS RF03FA AR/EN 100A TX 026H L889 6210VC0006A FILTER, FBMH3216 HM501NT 3.2X1.6X1.6MM R/TP...
  • Page 38 REPLACEMENT PARTS LIST (TUNER) LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q410 0TR150400BA CHIP 2SA1504S(ASY) KEC 0TR150400BA Q411 CHIP 2SA1504S(ASY) KEC IC001 0ISM555000A SDA5550 MQFP100 BK Q601 0TR387500AA CHIP 2SC3875S(ALY) KEC IC002 0IZZVA0079B M27W201 DIP 32P ST Q602 0TR387500AA CHIP 2SC3875S(ALY) KEC...
  • Page 39 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 40 UPJ-R1-023 21PIN W/SHLD P105 6612M00001A UPJ-R1-023 21PIN W/SHLD ACCESSORIES 3828VA0397E MANUAL,OWNERS RF03FA RT-BA50 100A TX 6850F00001A CABLE,D-SUB MDR-36 UL20276 210MM MISCELLANEOUS TU101 6700MF0003A TUNER, TAFH-Z342D LG MULTI FS LT-15A15 TU101 6700PF0002A TUNER, TAFH-S312D LG PAL FS 4SYS - 40 -...
  • Page 41 P/No : 3854VA0133A-S1(1/2) 2003.6.21...
  • Page 42 P/No : 3854VA0133A-S1(2/2) 2003.6.21...
  • Page 43 P/No : 3854VA0133A-S2(1/2) 2003.6.21...
  • Page 44 P/No : 3854VA0133A-S2(2/2) 2003.6.21...
  • Page 45 P/No : 3854VA0133A-S3(1/2) 2003.6.21...
  • Page 46 TUNER ( RZ-BA50) P/No : 3854VA0133A-S3(2/2) 2003.6.21...
  • Page 47 TUNER ( RT-BA50) P/No : 3854VA0133A-S4(1/2) 2003.6.21...
  • Page 48 SVC. SHEET : 3854V A0133A-S1 SVC. SHEET : 3854V A0133A-S2 SVC. SHEET : 3854V A0133A-S3 SVC. SHEET : 3854V A0133A-S4...
  • Page 49 May., 2004 P/NO : 3828VD0129J Printed in Korea...

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