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LG 62SX4R Service Manual

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DLP Projection TV
SERVICE MANUAL
CHASSIS : MB-05DB
MODEL : 62SX4R
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
62SX4R-AB
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG 62SX4R

  • Page 1 DLP Projection TV SERVICE MANUAL CHASSIS : MB-05DB MODEL : 62SX4R MODEL : 62SX4R-AB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ........................2 SAFETY PRECAUTIONS ....................3 SERVICING PRECAUTIONS ..................4 CONTROL DESCRIPTIONS ....................6 REPLACEMENT THE LAMP ..................10 SPECIFICATIONS ......................12 ADJUSTMENT INSTRUCTIONS ..................20 BLOCK DIAGRAM......................27 EXPLODED VIEW ......................34 EXPLODED VIEW PARTS LIST ..................35 REPLACEMENT PARTS LIST ..................36 SVC. SHEET ........................PRINTED CIRCUIT BOARD ....................

  • 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: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service transistors and semiconductor "chip" components. The manual and its supplements and addenda, read and follow the following techniques should be used to help reduce the SAFETY PRECAUTIONS on page 3 of this publication. incidence of component damage caused by static by static NOTE: If unforeseen circumstances create conflict between the electricity.
  • Page 5 c. Quickly move the soldering iron tip to the junction of the Fuse and Conventional Resistor component lead and the printed circuit foil, and hold it Removal/Replacement there only until the solder flows onto and around both the 1. Clip each fuse or resistor lead at top of the circuit board component lead and the foil.

  • Page 6: Control Descriptions

    CONTROL DESCRIPTIONS All the functions can be controlled with the remote control handset. Some functions can also be adjusted with the buttons on the front panel of the set. Remote control handset POWER Before you use the remote control handset, please install the bat- teries.

  • Page 7: Battery Installation

    13. TV/AV selects the remote operating mode. switches the set on from standby. POWER 14. ARC (Aspect Ratio Control) changes the picture format. MULTIMEDIA TV/AV 15. CANCEL/EXIT LIST Clears all on-screen displays and returns to TV viewing from any MUTE menu.

  • Page 8: Front Panel

    Front panel Lamp indicator, operation indicator, and temperature indicator, located side the front panel controls reveal the operating status of the DLP(Digital Light Processing) projection TV. * To high quality of the sound, do not press the speakers. MAIN POWER (ON/OFF) MUTE TV/AV MENU...

  • Page 9: Rear Panel

    Rear panel AV3 INPUT AUDIO SOCKET (L)/ MONO VIDEO S-VIDEO S-VIDEO COMPONENT INPUT 1 INPUT 2 480i/480p/ 480i/480p/ 576i/576p/ 576i/576p/ AUDIO INPUT 720p/1080i 720p/1080i (L)/ MONITOR A/V 2 A/V 1 MONO VIDEO INPUT INPUT PC/DTV (SXGA/ 480p/ 576p/ S-VIDEO S-VIDEO 720p/ 1080i) VIDEO...

  • Page 10: Replacement The Lamp

    2 minutes, cooling fan works after turning off power) - Allow the lamp to cool for 30 minutes before replacing it. - Replace only with the same type lamp from a LG Electronics Service Centre. Using other lamp type may cause damage to the TV and lamp.
  • Page 11 (If the lamp cover is open, the lamp indicator flashes green and the TV will not turn on.) Note : - Only use LG approved lamp replacement. - Using incorrect type of lamp may cause damage to the TV or lamp.

  • Page 12: Specifications

    Market Place Brand Remark MB-05DB 44/52SZ8R-TB Australia / Non-EU 62SX4R-AB Specification Each part is tested as below without special appointment. 1) Temperature : 25 5°C (CST : 40°C 2°C) 2) Relative Humidity : 65 10% 3) Power Voltage : Standard input voltage(AC 240V , 50Hz) * Standard Voltage of each products is marked by model.
  • Page 13 General Specification Specification Item Remark Aspect Ratio 16:9(wide) Operating Environment 1) Temp : 0~40 deg 2) Humidity : 0~85% LGE SPEC Storage Environment 3) Temp : -20~60 deg 4) Humidity : 0~85% Input Voltage AC 140~240V, 50/60Hz Model Specification Specification Item Remark Market...
  • Page 14 Specification Remark 44/52SZ RF Input 2 Tuner Rear 8R-TB (PAL-BG/ I/ DK,SECAM-BG/ DK,NTSC-M) 62SX4R AV Input CVBS/ L/ R / S-VHS(S-VHS Priority) Rear 2 / Side 1 Monitor Out CVBS/ L / R Rear Component Input 480i/ 576i/ 480p/ 576p/ 720p/ 1080i...
  • Page 15 Item Remark Specification Available for only RGB PC Menu Manual config Phase : 0 ~ 63 (Screen) Clock : -127 ~ +128 RF, AV1/2, Component 480i,576i On/ Off Cinema (Film Mode) 3D NR : 0~ 16 Except RGB-PC / HDMI-PC MPEG NR : 0~63 (Luma Noise Reduction) Initialize user data...
  • Page 16 Power Specification Item Remark Unit Power ON/OFF operation 10000 times Normal 220V Staring Voltage Normal 220V Staring Voltage, -10 Degree DC Voltage, Ballast DC Voltage, 5V-STBY DC Voltage, 3.3V-STBY 3.135 3.465 DC Voltage, 2.5V-STBY 2.375 2.625 DC Voltage, 1.8V-STBY 1.71 1.89 DC Voltage,Tuning Voltage DC Voltage, DLP Driver, 3.5V...
  • Page 17 Component Video Input (Y, P Specification Proposed Resolution H-freq(kHz) V-freq(Hz) Pixel clock SDTV, DVD 480I(525I) 720*480 15.73 59.94 13.500 SDTV, DVD 480I(525I) 720*480 15.75 60.00 13.514 SDTV, DVD 576I(625I) 720x576 15.625 50.00 13.500 SDTV 480P 720*480 31.47 59.94 27.000 SDTV 480P 720*480 31.50 60.00...
  • Page 18 Option Specification Remark Item Description Area Code OPTION1 200PR 0 : 100 PR Memory (Tuner opt) 1 : 200PR Memory ACMS 0 : CH Memory On 1 : CH Memory Off TEXT TOP : A patent right payment nation FLOP : Basic Off : Text Off CH+AU 0 : Others...
  • Page 19 Lamp & Temp IN-START for adjustment Remote Controller -> Lamp & Temp Item Market Place Remark Lamp Life Time[khr] The length of time that lamp is alive to capacity Lamp use Time[hr] The length of time that lamp is used up to now Lamp Current Temp For Engineering Lamp Warn Temp...

  • Page 20: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object (1) Connect the power to TV Set and set the status of “Power on”. This instruction is for the application to the DLP Projection (2) Heat-Run must operate over 5 minute before adjustment. 4. Adjustment the optical engine 2.
  • Page 21 3) After adjusting the illuminator, adjust the focus by (3) Check the Variable and base value ACT Gain and Phase using the focus adjustment screw of projection lens. - Phase(Base value : 220) After adjusting, fasten the screw tightly and secure - Gain(Base value : 70) with sealer <Fig 4>.
  • Page 22 (2) In case of the upper screen size is large bottom screen Keystone size than : upward projector. : Apply Mode -> 62SX4R-AB 1) Geometry (1) When the upper portion of the screen is larger than the bottom : Projection lens may be upward.

  • Page 23: Screen Position Adjustment

    10. Screen Position Adjustment : Base value ( H : 0, V : 0) 1) Required Test Equipment A remote control of adjustment 2) Horizontal Position Adjustment <Fig 9. COLOR BAR Pattern> <Fig 10. Vertical16 Gray Pattern> 3) Adjusting the Auto Color Balance 1) On inputting the signal, press the ADJ key on the remote control to enter the adjustment mode when screen is displayed.
  • Page 24 (3) ACT Gain and Phase is variable and the Tartan plaid of R, 3) Adjustment G, B, W Horizontal Line adjust not distinguished not to be. (1) Using the Channel key, adjust CWI-Pat.1 to the LEFT/ a. The Phase(Base value : 220) variable adjust RIGHT Mutation point of Actuator.
  • Page 25 4) CCA Automatic Adjustment Target Value. Color Tolerance Coordinate Coordinate Temperature Cool 11600K Warm 6600K Medium 9300K 5) Program Edit. (1) Model Edit : Interval time and Target White coordinate that are between command words per Mode, being possible to correct a common difference.<Fig 17> <Fig 15.
  • Page 26 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. Specification Item Remark Min Typ Max Unit...

  • Page 27: Block Diagram

    BLOCK DIAGRAM...
  • Page 33 MEMO...

  • Page 34: Exploded View

    EXPLODED VIEW...

  • Page 35: Exploded View Parts List

    PWB(PCB) ASSEMBLY, SUB SUB MB042C SIDE AV RZ-44SZ80LB 3500V00118D BOARD, ASSY 52SX4D-AA NB05CA SIDE A/V 6871VSME03S PWB(PCB) ASSEMBLY, SUB SUB S.B MB05DB 62SX4R-AB AAULLSK CASE DET SW 6871VSME82A PWB(PCB) ASSEMBLY, SUB INTER MB042A DN-44SZ80L 6871VPMA44F PWB(PCB) ASSEMBLY, POWER SMPS MB-05DA RZ_44SZ84DB M/I 6871VSMW40F PWB(PCB) ASSEMBLY, SUB SENSOR M.I NB03KA HD3 DLP 7SEGMENT COLOR WHEEL...

  • Page 36: Replacement Parts List

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC700 0IMCRTI011B 2504886-0003(DDP1011) IC701 0IMMRAL050B AT49BV802AT-70TU ATMEL 48P/TSOP 0IMI623200B M62320FP,I/O EXPANDER 16P SOP IC702 0IMCRFA003A KA2903 FAIRCHILD 8SOP R/TP AMPLIFIER 0IPRPTO002A TC7S14F(T5L,T) TOSHIBA 5P IC705 0IMMRAL025A AT24C32AN-10SI-2.7 ATMEL 8PIN 0ISO206900A IC100 CXA2069Q QFP64 BK I2C BUS AV S/W...
  • Page 37 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q121 0TR387500AA CHIP 2SC3875S(ALY) BK KEC D203 0DS113379BA 1SS133 T-72 TP DO34 90V Q122 0TR387500AA CHIP 2SC3875S(ALY) BK KEC D206 0DS226009AA KDS226 TP KEC - 80V 4NSEC 0.5UA Q123 0TR150400BA CHIP 2SA1504S(ASY) BK KEC D207 0DS226009AA...
  • Page 38 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 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 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 41 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 42 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 43 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 44 2.36PAI 1P . K/M AUTO 6630VF01608 53398-0890 MOLEX 8P 1.25MM P806B 366-009D 2.36PAI 1P . K/M AUTO P1001A 366-169G 2.0MM 8P GIL-S LG CABLE S P807A 366-009D 2.36PAI 1P . K/M AUTO P1100 6630VF01610 53398-1090 MOLEX 10P 1.25MM P807B 366-009D 2.36PAI 1P .
  • Page 45 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 46 P601 6612BBBHN7A DIN, 74320-3004 MOLEX DVI 6200JB8010L MLB-201209-1000L-N2 1000OHM ACCESSORIES 6210VC0006A FBMH3216 HM501NT TAIYOYUDEN L405 0LCML00003B MLB-201209-0120P-N2 5A 3828VA0575E MANUAL, USER MB05DB LG L406 0LCML00003B MLB-201209-0120P-N2 5A 6710V00136G REMOTE CONTROLLER, MB03CC TXT L505 0LCML00003B MLB-201209-0120P-N2 5A MISCELLANEOUS L601 0LCML00002B MLB-321611-0050P-N1 6A...
  • Page 48 HD4_DRIVER2 HD4_DRIVER2 HD4_DRIVER2...
  • Page 49 HD4_DRIVER4 HD4_DRIVER3 HD4_DRIVER3 HD4_DRIVER6 HD4_DRIVER5...
  • Page 50 PRINTED CIRCUIT BOARD SMPS MAIN (BOTTOM) DLP DRIVER (TOP) MAIN (TOP) DLP DRIVER (BOTTOM) JACK (BOTTOM) JACK (TOP) AC INPUT SIDE A/V INTERFACE LED ( TOP ) LED ( BOTTOM ) CASE DET(TOP) CONTROL(TOP) CASE DET(BOTTOM) POWER S/W PRE-AMP CONTROL(BOTTOM) SENSOR B/D ( TOP ) SENSOR B/D ( BOTTOM )
  • Page 51 Sep., 2005 P/NO : 3828VD0216E Printed in Korea...

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