Download Print this page
Hide thumbs Also See for 50PB2DR:

Advertisement

Quick Links

PLASMA TV
SERVICE MANUAL
CHASSIS : PB61C
MODEL : 50PB2DR
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
50PC2DR-AC
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

Advertisement

loading

Summary of Contents for LG 50PB2DR

  • Page 1 PLASMA TV SERVICE MANUAL CHASSIS : PB61C MODEL : 50PB2DR 50PC2DR-AC 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 ....................9 ADJUSTMENT INSTRUCTIONS ...............12 BLOCK DIAGRAM & TROUBLE SHOOTING GUIDE ........19 EXPLODED VIEW ....................44 EXPLODED VIEW PARTS LIST ................45 REPLACEMENT PARTS LIST................46 SCHEMATIC DIAGRAM..................PRINTED CIRCUIT DIAGRAM ................- 2 -...
  • Page 3: Safety Precautions

    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 4: Description Of Controls

    DESCRIPTION OF CONTROLS Selects digital or analogue mode. D/A INPUT (Digital TV / INPUT MODE Analogue TV) POWER INPUT External input modes rotate in regular sequence: INPUT Digital, Analogue, AV1-2, Component 1-2, RGB- BRIGHT DTV (or RGB-PC), HDMI1/DVI, HDMI2. POWER Switches the set between ON and STANDBY.
  • Page 5 Selects the remote operating mode: TV, VCR, DVD. Select other operating mode TV, VCR, DVD, for the remote to operate external devices. Shows a programme schedule. GUIDE INFO Shows the present screen information. Switches to PIP, POP and Twin picture modes or off mode. PIP PR +/- Selects a programme for the sub picture.
  • Page 6 Front Panel Controls PROGRAMME )Button VOLUME ( Button OK Button MENU Button MENU MENU MENU INPUT Button INPUT INPUT INPUT MENU (POWER) Button INPUT MENU MENU MENU INPUT INPUT INPUT Remote Control Sensor MENU INPUT Power Standby Indicator Illuminates red in standby mode. When the TV is turned on, the indicator blinks white and then illuminates white before the picture is displayed.
  • Page 7 Back Connection Panel AV IN 2 AUDIO Input Connections are available for listen- ing to stereo sound from an external device. VIDEO Input Connects the video signal from a video device. AV OUT AV OUT AV OUT MONO VIDEO VIDEO VIDEO AUDIO AUDIO...
  • Page 8 * Do not wipe roughly when removing stain. Please Polishing Cloth be cautions of that excessive power may cause Polish the screen with the cloth. scratch or discoloration. For 50PB2DR 2-Wall brackets 2-eye-bolts - 8 -...
  • Page 9: Specifications

    This spec is applied to the 50” PLASMA TV used PB61C Chassis. Chassis Model Name Market Brand Remark PB61C 50PB2DR-AC Australia Specification Each part is tested as below without special appointment. 1) Temperature : 25±5°C (77±9°F), CST : 40±5 2) Relative Humidity: 65±10% 3) Power Voltage: Standard Input voltage (100-240V~, 50/60Hz) * Standard Voltage of each product is marked by models.
  • Page 10 2. Module Specification ( PDP50X3 ) 2-1. General Specification Item Remark Unit Display area 1106.5(H) * 622.1(V) ° ± 0.5 Outline dimension 1190(H) * 700(V)*58(D) ° ± 1 Number of Pixels 1366(H) * 768(V) 1Pixel=3RGB Cells Cell pitch 270(H) *810(V) 1Pixel=3RGB Cells Pixel type RGB Closed type (well)
  • Page 11 3. Module Specification ( PDP50X4 ) 3-1. General Specification Item Remark Unit Display area 1106.5(H) * 622.1(V) ° ± 0.5 Outline dimension 1190(H) * 700(V)*52(D) ° ± 1 Number of Pixels 1366(H) * 768(V) 1Pixel=3RGB Cells Cell pitch 270(H) *810(V) 1Pixel=3RGB Cells Pixel type RGB Closed type (well)
  • Page 12: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 5. MST3361M-Set Adjustment These instructions are applied to all of the 50” PLASMA TV, 5-1. Synopsis PB61C Chassis MST3361M-Set adjustment to set the black level and the Gain of optimum with an automatic movement from the analog => 2.
  • Page 13 6. Video(uPD)- Set Adjustment signal is not connected correctly, and verify if the signal is connected correctly to the terminal of Set antenna. If appears ‘Video Configuration Error’ , it means the 6-1. Synopsis signal is connected correctly but the adjustment process This is a adjustment to reduce the color difference of video was wrong.
  • Page 14 8-3. EDID DATA & Cable. <EDID Checksum > (2) Turn on the PC & EDID Download Jig. And Execute the - 50PB2DR-AC S/W : EDID TESTER Ver,2.5. HDMI PORT1 : 61 45 (3) Set up S/W option. HDMI PORT2 : E6 18...
  • Page 15 8-5. How to use the EDID S/W (2) Condition for automatic adjustment and attentions 1) Apply the adjustment where the illuminance is less than (1) Init the data. 10 lux, it means in a place controlled in maximum the indraft of light. 2) Adjust/measure with the Color Analyzer ( CA-100+, CA- 100 ) contacting completely in the surface of Module.
  • Page 16 9-4. Adjustment of White Balance (3)CA-100/100+ indication value (CH 10) (Passivity Adjustment) [ 50X3, 40%filter ] (1) Enter to ‘EZ-ADJUST’ by pressing ADJ key of R/C. Color Coordinate Color Temperature Measuring instrument (2) HEAT RUN at least 30 minutes by pressing the ‘11. TEST Pattern’...
  • Page 17 Then, select the file and click “Open”. (1) Insert PASSWORD of the model in the activated window. (Find an ‘****.epk’ file which you want to download and (Do not insert password for 50PB2DR-AC for which select it.) password is not assigned.) (6) The download process is shown.
  • Page 18 11. Check the adjustment of the plant shipping mode : This adjustment is checking the set state after take a adjustment of examination, check state of this model as shown below pressing the IN_STOP button on the adjustment Remote Controller. Item Condition Remark...
  • Page 19: Block Diagram & Trouble Shooting Guide

    BLOCK DIAGRAM & TROUBLE SHOOTING GUIDE 1. Australia PVR Audio (1) Block Diagram - 19 -...
  • Page 20 (2) PVR Digital BD MUX INTERFACE - 20 -...
  • Page 21 (3) PVR RF/AV MODE - 21 -...
  • Page 22 (4) PVR RF MODE (Detailed) - 22 -...
  • Page 23 (5) PVR RF MODE - 23 -...
  • Page 24 (6) PVR COMPONENT/RGB - 24 -...
  • Page 25 (7) PVR HDMI/DVI - 25 -...
  • Page 26 (8) PVR Digital TV - 26 -...
  • Page 27 (9) PVR HDD PLAY BACK - 27 -...
  • Page 28 (10) PROTECT MODE - 28 -...
  • Page 29 2. PVR Audio (1) Audio path 1) Block Diagram RGB Audio Component 1 Component 2 PWM Modulator Front Speaker (NSP2100A) (TAS5122) Main AV Switch Audio Processor (CXA2069) Front AV (MSP4450K) Monitor Out PAL Tuner Buffer PAL/COFDM Tuner (MC33078) Audio Processor (CS5331A) (MSP4458G) MUX CPLD...
  • Page 30 (2) TV RF NO SOUND 1) Block Diagram PWM Modulator Front Speaker (NSP2100A) (TAS5122) Main Audio Processor (MSP4450K) Monitor Out PAL Tuner PAL/COFDM Tuner Buffer (MC33078) (CS5331A) SPDIF System CPLD SPDIF Out HD-2 (EPM570T144) (Optical) 2) Trouble Shooting Guide Check Antenna Cable Check PAL Tuner (TU1301)
  • Page 31 (3) DTV NO SOUND 1) Block Diagram PWM Modulator Front Speaker (NSP2100A) (TAS5122) Main Audio Processor (MSP4450K) Monitor Out PAL/COFDM Tuner MUX CPLD (EPM570F256) SPDIF System CPLD SPDIF Out HD-2 (EPM570) (Optical) 2) Trouble Shooting Guide Check Antenna Cable Check Tuner (TU1302) #3,11(5V), #24(IF_N), #25(IF_P) Check Mux CPLD(IC305) Check LGDT1102F(IC402)
  • Page 32 AV/COMPONENT/RGB NO SOUND 1) Block Diagram RGB Audio Component 1 Component 2 PWM Modulator Front Speaker (NSP2100A) (TAS5122) Main AV Switch Audio Processor (CXA2069) Front AV (MSP4450K) Monitor Out Buffer (MC33078) (CS5331A) SPDIF System CPLD SPDIF Out HD-2 (EPM570T144) (Optical) 2) Trouble Shooting Guide Check Video/Front Video...
  • Page 33 HDMI NO SOUND 1) Block Diagram PWM Modulator Front Speaker (NSP2100A) (TAS5122) Main Audio Processor (MSP4450K) Monitor Out SPDIF System CPLD SPDIF Out HD-2 (EPM570T144) (Optical) MST3361 SPDIF HDMI CS8415A 2) Trouble Shooting Guide Check HDMI Cable SPDIF BYPASS CheckMST3361 (IC603) outputs #125(HDMI_SPDIF_OUT) Check CS8415A(IC1006) in/outputs #14(HDMI_SPDIF), #16(SCK), #17(LRCK),...
  • Page 34 RECORD & PLAY NO SOUND 1) Block Diagram PWM Modulator Front Speaker (NSP2100A) (TAS5122) Main Front AV Audio Processor (MSP4450K) PAL Tuner Monitor Out PAL/DVB-T Tuner Buffer (MC33078) Audio Processor (MSP4458G) (CS5331A) MUX CPLD (EPM570F256) SPDIF System CPLD SPDIF Out HD-2 PVR SOC (EPM570T144)
  • Page 35 Hardware Test by using Terminal Start the terminal program ( Tera terminal, DTV Lab) 1 : Press PC keyboard number 1 2 : AC OFF/ON or Push the Reset SW 3 : Enter the command 20 (Hardware test Menu) Select the Total Test - 35 -...
  • Page 36 Testing procedure showed Watch out !! Your TV System Specification If your model is North America Model , does not include IEEE1394 If your model is LCD Model , does not include I2CModuleTest Check the FAIL Components (Memory, PCI IC, IIC) - 36 -...
  • Page 37 If you want to check more detail PCI IC s [Test Items] 0x1 : System Memory Choose command 3 PCI Device (PVRSoC) /SATA Controller) 0x2 : HD-2 0x3 : PCI Device(PVRSoC/IEEE1394(TSB43Dx42)/SATA Controller) Other Test Items can be easily use such as upper example. 0x4 : I2C I/F 0x5 : GPIO Control 0x6 : Flash(8M) Memory...
  • Page 38 3. PVR Application file Downloading Guide (1) ISP Manual DTV Lab Installation and Execution First make folder any place in your PC and copy DTV Lab software to folder that finish you make. After that click icon DTV Lab to open DTV Lab software tool If DTV Lab software open, appear main window like on the picture - 38 -...
  • Page 39 Equipment for Download 1. USB to Serial converter (only use if no serial port in PC or Laptop) 2. TWISTED Serial CABLE Connecting Cables TWISTED Serial Cable USB to Serial converter (DB9 Female to Female Cable) Used to connect PC USB port to This cable is used to connect USB to Twisted serial cable .
  • Page 40 External Connections TV SET(RS-232) TWISTED Serial Cable Fig.1 The connection settings for upgrading (I.e; downloading ) are shown above Copy attached Application-file into Window Folder where “DTVLab.exe” file exits. - 40 -...
  • Page 41 DTV Lab connection Settings. After DTV Lap open then Click Set Property to setting Serial Connection like Comm. Port, Baud Rate and Control After Click Set Property and appear menu window Comm. Port Property and setting : - Comm. Port to Select where your cable serial pluck in.
  • Page 42 7) A pplication File Download 1. While pressing number key 1 of PC Keyboard, Power on TV Set. (I recommend you to power on TV set immediately after pressing number key 1 ) 2. Release key 1 , when appearing text BOOT MENU ENTRY like on the picture..
  • Page 43 MEMO - 43 -...
  • Page 44: Exploded View

    EXPLODED VIEW - 44 -...
  • Page 45: Exploded View Parts List

    Plate Assembly, ASSY 50PB2DR-AC TUNER BOTTOM PRESS 3301900092W Plate Assembly, ASSY DIGITAL COVER ASSY 50PB2D-AC EBR31690701 Hand Insert PCB Assembly, Main MAIN1 M.I PB61C 50PB2DR-AC AAULLHX AUS_PVR EBR32252101 Hand Insert PCB Assembly, Sub SUB M.I PB61C 50PB2DR-AC AAULLHX - EBT32489501...
  • Page 46: Replacement Parts List

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC503 0IMMR00141A HY57V641620ETP-6 64MBIT 1MX16BITX4B IC503 0IKE702900G KIA7029AF -0.3TO15V 2.9V 500MW SOT8 IC100 0IPRPBM001B PPC405GPR-3JB266C 1.7TO1.9V PBG IC504 0IMCRCY002A CY2309SXC-1HT 3TO3.6V - 1 IC1000 0ICB533100A CS5331A-KSR 4.75TO5.25V 48KHZ 18BIT IC505 0ISTL00024A MC14053BDR2G 3TO18V 0.02mA MULTIPLE...
  • Page 47 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 48 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 49 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 50 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 51 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 52 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 53 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 54 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 55 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 56 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 57 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 58 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 59 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 60 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 61 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 62 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 63 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 64 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 65 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 66 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R9033 0RJ1001D677 MCR03EZPJ102 1KOHM 5% 1/10W R941 0RJ4701D677 MCR03EZPJ472 4.7KOHM 5% 1/10W 1608 R9034 0RJ1001D677 MCR03EZPJ102 1KOHM 5% 1/10W R942 0RJ4701D677 MCR03EZPJ472 4.7KOHM 5% 1/10W 1608 R9035 0RJ4701D677 MCR03EZPJ472 4.7KOHM 5% 1/10W 1608 R943 0RJ4701D677 MCR03EZPJ472 4.7KOHM 5% 1/10W 1608...
  • Page 67 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L1315 0LCML00003B MLB-201209-0120P-N2 120OHM 2X1.2X0.. SWITCH L1605 0LCML00003B MLB-201209-0120P-N2 120OHM 2X1.2X0.. SW101 140-313B Tact, KPT-1115AM 1C1P 12VDC 0.05A HORIZON L1606 0LCML00003B MLB-201209-0120P-N2 120OHM 2X1.2X0.. SW102 140-313B Tact, KPT-1115AM 1C1P 12VDC 0.05A HORIZON L301 0LCML00003B MLB-201209-0120P-N2 120OHM 2X1.2X0..
  • Page 68 Crysta, SX-1 24MHZ 30PPM 24MHZ 30PPM 20pF S IC205 SAA30115605 S/W,Firmware V3.00.0 2D75 AUSTRALIA SOP Flash X601 6202VDT002B Crysta, SX-1 14.31818MHZ 30PPM 14.31818MHZ IC504 SAA30115405 S/W 39DC AUSTRALIA QFP Micom 50PB2DR- X701 6212AB2873A Crysta, HC-49/SM 24.576MHZ 30PPM 24.576MHZ IC1604 0IPRPNS054A ACSensor,Temperature LM75CIMX-3 3TO5.5V SOP X702 6212AB2873A Crysta, HC-49/SM 24.576MHZ 30PPM 24.576MHZ...
  • Page 73 Speaker...
  • Page 74 PRINTED CIRCUIT BOARD MAIN(BOTTOM) MAIN(TOP) MAIN2( TOP ) MAIN2 ( BOTTOM ) SIDE A/V CONTROL PRE-AMP...
  • Page 75 Sep., 2006 P/NO : MFL301490101 Printed in Korea...

This manual is also suitable for:

50pc2dr-ac