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LG RT-60SZ31RB Service Manual

Lcd projection tv
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P/NO : 3828VD0133Z
Oct.,2003
Printed in Korea
e-mail:http://www.LGEservice.com/techsup.html

LCD Projection TV

SERVICE MANUAL
CHASSIS : MB-03CB
MODEL : RT-52/60SZ31RB/RP
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
TV/AV
MENU
OK
VOL
PR
ON/OFF
website:http://biz.LGservice.com

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Summary of Contents for LG RT-60SZ31RB

  • Page 1: Lcd Projection Tv

    website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html LCD Projection TV SERVICE MANUAL CHASSIS : MB-03CB MODEL : RT-52/60SZ31RB/RP CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Oct.,2003 P/NO : 3828VD0133Z Printed in Korea TV/AV MENU ON/OFF...

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ........................2 SAFETY PRECAUTIONS ....................3 SERVICING PRECAUTIONS ..................4 CONTROL DESCRIPTIONS ....................6 SPECIFICATIONS ......................10 ADJUSTMENT INSTRUCTIONS ..................14 BLOCK DIAGRAM......................20 PRINTED CIRCUIT BOARD ...................25 EXPLODED VIEW ....................34,36 EXPLODED VIEW PARTS LIST ................35,37 REPLACEMENT PARTS LIST ..................38 SVC. SHEET ........................- 2 -...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS I M P O RTANT 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

    S E RVICING 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 e l e c t r i c i t y .
  • 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

    9. PSM (Picture Status Memory) recalls your preferred picture setting. 10. I/II selects the language during dual language broadcast. selects the sound output. 11. VCR BUTTONS control a LG video cassette recorder. - 6 -...
  • Page 7 12. TV/AV selects the remote operating mode. switches the set on from standby. 13. SLEEP sets the sleep timer. POWER 14. TELETEXT BUTTONS These buttons are used for teletext. MULTIMEDIA TV/AV For further details, see the ‘Teletext’ section. MUTE SLEEP 15.
  • Page 8 Front panel Lamp indicator, operation indicator, and temperature indicator, located below the front panel con- trols reveal the operating status of the LCD projection TV. ON/OFF ON/OFF TV/AV MENU TV/AV MENU 1. MAIN POWER (ON/OFF) 7. OPERATION INDICATOR (Refer to p.7) switches the set on or off.

  • Page 9: Rear Panel

    Rear panel A/V 3 INPUT S-VIDEO INPUT SOCKET AV3 INPUT SOCKET A/V 3 INPUT SIDE A/V SIDE A/V ANT IN 75Ω RGB1 PC/DTV (XGA /480p /720p /1080i) RGB1,2 PC/DTV (XGA /480p /720p /1080i) DTV/DVD RGB2 (480i/480p/720p/1080i) ANT IN 75Ω PC/DTV INPUT AERIAL SOCKET SOCKETS PC/DTV INPUT...

  • Page 10: Specifications

    - RP :W/O Teletext China Morocco option Test and Inspection Method 1) performance:Follow the Standard of LG TV test 2) Standards of Etc requirement Safety: Follow the standard of CB EMC : Follow the standard of CE Test Condition 1) Temperature :25¡ 5 °C 2) Relative Humidity:65¡...
  • Page 11 Feature and Function Specification Remark Item Unit REMOCON LG Code RGB Input Separate D-Sub 15 Pin RGB Audio (L, R) Input Center Speaker Mode Input Component Audio (R, L) Input Component Input Y, P AV Input (1 Side / 2Rear)
  • Page 12 Specification Item Remark Unit DC Voltage, Digital, 5V DC Voltage, Turning voltage DC Voltage, LCD Driver, 5V DC Voltage, LCD Driver, 17.5V 11.5 12.5 DC Voltage 3.3, SUB MICOM DC Voltage 2.5V, SUB MICOM DC Voltage, FAN 11.5 12.5 External Interface Specification Remark Item...
  • Page 13 Option Specification Item Remark Unit 0 : Standard Volume Curve 1 : Non-Standard (Southeast Asia,Central America) 0 : Support FLOP Text Top 1 : Support All (FLOP + TOP) 0 : Do not save DUAL When converting Channel I_II SVC 1 : Save DUAL when Converting Channel 0 : OSRAM Lamp_Type...

  • Page 14: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 4. LCD adjustment This instruction is for the application to the LCD Projection 4-1. NRS adjustment [When the LCD panel load data on regular pixel using high 2. Notes speed charge/ discharge with sample & holder, the drain width (1) The power source insulation of this LCD Projection is not of TFT gradually decreases and the non-resistance increases, charging type and you may not use the transformer for...
  • Page 15 Optical measuring equipment Adjustment Connector for RS-232C Adjustment Cable PC Pattern Generator <Fig 2. TV set status Adjustment> (3)Preparation for Adjustment 1) Connect the PC PATTERN GENERATOR, circuit for adjustment and adjustment JIG as shown <Fig 2>. 2) Adjust output pattern of PC PATTERN GENERATOR to <Fig 4.
  • Page 16 6-2. Screen Position Adjustment (3) Offset Adjustment 1) Press Adjust key on the remote control to enter the adjustment mode after more than 10 seconds of receiving (1) Required Test Equipment the signals. A remote control of adjustment 2) Press “4.AD9883 Adjust” to adjust. 3) When the OSD of “AD9883 Adjust End”...
  • Page 17 Gamma Adjust 4) Circuit thing Jig for Adjustment (Except Driver Board Assy * First column : R adjustment data of adjustment model) display --- Programmed Digital Board so that the VDP Test Pattern can output white signal by 1level form 0 to 255 level. * Second column : G adjustment data display (2) Equipment composition...
  • Page 18 11. RL1H : Upper 9bit of MID2 brightness correction --- Change according to BMIN and BMID2 value. coefficient in R MIN. 25. BL2H : Upper 9bit of MID1 brightness correction --- Change according to RMIN and RMID2 value. coefficient in B MID2. 12.
  • Page 19 line with ET7050 IC through measurement equipment of optics. Adjust screen coordinates data to adjust the color uniformity of mid point. At this time, make sure that deviation is +5~-5% and standard is color coordinate of center. 4) Output the VDP TEST PATTERN signal correspond to the MIN value.

  • Page 20: Block Diagram

    BLOCK DIAGRAM 1. Video Input Path - 20 -...
  • Page 21 2. Syns I/O Path - 21 -...
  • Page 22 3. Audio Input Path - 22 -...
  • Page 23 4. Control Signal Connection Diagram- IIC - 23 -...
  • Page 24 5. General Control Signal - 24 -...

  • Page 25: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN (TOP) - 25 -...
  • Page 26 MAIN (BOTTOM) - 26 -...
  • Page 27 COMPONENT (TOP) COMPONENT (BOTTOM) SIDE A/V AC INPUT PRE-AMP - 27 -...
  • Page 28 LCD DRIVER (TOP) CONTROL - 28 -...
  • Page 29 LCD DRIVER (BOTTOM) - 29 -...
  • Page 30 DIGITAL (TOP) DIGITAL (BOTTOM) - 30 -...
  • Page 31 TUNER (TOP) TUNER (BOTTOM) - 31 -...

  • Page 32: Power

    SMPS POWER S/W INTERFACE BALLAST - 32 -...
  • Page 33 MEMO - 33 -...

  • Page 34: Exploded View

    EXPLODED VIEW(52”) - 34 -...

  • Page 35: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Part No. Description 120-D38E SPEAKER,MID-RANGE LG FOSTER 8 OHM 15/25W 87DB 128X77MM 6400VG0001B SPEAKER,TWEETER NO FOSTER 8 OHM 20W/30W XX D77 3110V00123A CASE, SPEAKER BOX LEFT 3550V00159A COVER, SPEAKER BOX LEFT 3110V00124A CASE, SPEAKER BOX RIGHT...
  • Page 36 EXPLODED VIEW(60”) - 36 -...
  • Page 37 EXPLODED VIEW PARTS LIST Part No. Description 120-D38E SPEAKER,MID-RANGE LG FOSTER 8 OHM 15/25W 87DB 128X77MM 6400VG0001B SPEAKER,TWEETER NO FOSTER 8 OHM 20W/30W XX D77 3110V00123A CASE, SPEAKER BOX LEFT 3550V00159A COVER, SPEAKER BOX LEFT 3110V00124A CASE, SPEAKER BOX RIGHT...

  • Page 38: Replacement Parts List

    CHIP 2SC3875S(ALY) KEC 0ISO206900A IC208 IC, CXA2069Q QFP64 BK I2C BUS AV S/W 0TR387500AA CHIP 2SC3875S(ALY) KEC IC301 0ICTMLG003C IC, LGDT1502M LG IC 304P QFP 0TR387500AA CHIP 2SC3875S(ALY) KEC IC302 0ITI740000Q IC, SN74LVC00AD 14SOP 0TR387500AA CHIP 2SC3875S(ALY) KEC - 38 -...
  • Page 39 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
  • Page 40 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
  • Page 41 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
  • Page 42 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
  • Page 43 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
  • Page 44 INDUCTOR, 10UH 10% 3216 P202A 6932V25004A 36512-0098 MALE MOLEX 48 2.54 0LC1032101A INDUCTOR, 10UH 10% 3216 P204B 366-922L 2.5MM 12P GIL-G LG CABLE R/A (B TO C) 0LC1032101A INDUCTOR, 10UH 10% 3216 P301 366-921F 2.5MM 7P GIL-G LG CABLE . L841 150-C02F...
  • Page 45 1.25MM 10P 53261-1090 J-MOLEX SMD-TAPING AR1204 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% P601A 366-932L 2.5MM 12P GIL-G LG CABLE S (STICK) AR1205 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% 6602V12001A 1.25MM 2P 53261-0290 J-MOLEX SMD-TAPING...
  • Page 46 EMI REEL/TAPING BMS400 NIGATA 25V 200MA SW07 140-315A TACT SKHV17910B LG C&D NON 12V T440 6200VJT006A STC222D NIIGATA 50VOLT 4A 2200PF 140-313A TACT 2LEAD 100G(TA) LG C&D NON 5V T444 6200QJ3001A EMI REEL/TAPING BMS400 NIGATA 25V 200MA SW801 140-289A POWER SDDF3PASP013 LG C&D UL/C T446...
  • Page 47 6726VH0001A REMOTE CONTROLLER RECEIVER, TSOP1238RF1 TU101 6700MF0001C TUNER, TAUD-Z240D LG MULTI FS 4SYS,2IN1,MAIN TU102 6700MF0001D TUNER, TAFD-Z241P LG MULTI FS 4SYS,2 IN 1,SUB VA800 164-003K VARISTOR,SVC621D-14A ILJIN 620V 0% X300 6204B60001B OSCILLATOR,VCXO 27MHZ +/- 100 PPM 3.3V - 47 -...
  • Page 48 P/No : 3854VA0117C-S1(1/2) 2003.10.8...
  • Page 49 P/No : 3854VA0117C-S1(2/2) 2003.10.8...
  • Page 50 P/No : 3854VA0117C-S2(1/2) 2003.10.8...
  • Page 51 P/No : 3854VA0117C-S2(2/2) 2003.10.8...

  • Page 52: Svc. Sheet

    S VC. SHEET : 3854V A0117C-S1 S VC. SHEET : 3854V A0117C-S2 S VC. SHEET :...

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