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LG MW-60SZ12 Service Manual

Lcd projection monitor
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Download this manual See also: Owner's Manual
P/NO : 3828VD0134A
Sep.,2002
Printed in Korea
LCD Projection Monitor

SERVICE MANUAL

CHASSIS : RE-01JB
MODEL : MW-60SZ12
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 MW-60SZ12

  • Page 1: Service Manual

    LCD Projection Monitor SERVICE MANUAL CHASSIS : RE-01JB MODEL : MW-60SZ12 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Sep.,2002 P/NO : 3828VD0134A Printed in Korea...

  • Page 2: Table Of Contents

    Contents Contents ............2 Safety Precautions .

  • Page 3: Safety Precautions

    Safety Precautions 1. Before returning an instrument to the customer, always make a safety check High voltage is maintained within specified limits by close-tolerance safety- of the entire instrument, including, but not limited to, the following items: related components/adjustments in the high-voltage circuit. a.

  • Page 4: Servicing Precautions

    Servicing Precautions CAUTION: Before servicing instruments covered by this service manual and 3. The components used in the unit have a specified flame resistance and its supplements, read and follow the SAFETY PRECAUTIONS section of this dielectric strength. When replacing any components, use components manual.

  • Page 5: Description Of Controls

    Description of Controls Main Body Main Body ON/OFF ON/OFF ON/OFF Button SOURCE MENU ENTER / MENU Button Indicators Button SOURCE Button ENTER Button Button * Temperature indicator, lamp Indicator and operation indicator at the front of the monitor show the user the operating status of the monitor.
  • Page 6 Rear Connecting Part Rear Connecting Part RGB IN3 (DVI-I) RS-232C MOUSE RS-232C RGB IN3(DVI-I) DC OUT(12V/0.5A) *Use this jack when connecting the wireless receiver to RGB IN1 the monitor. S-VIDEO VIDEO RGB IN2 COMPONENT (Y, P R, L RGB OUT MOUSE MOUSE - 6 -...
  • Page 7 Remote Control Remote Control POWER POWER Button MENU SOURCE SOURCE Button MENU Button MOUSE DRAG MOUSE DRAG Button L MOUSE Button R MOUSE Button (Zoom-out Button) (Zoom-in Button) ENTER Button POINTER Button VOL. +, - Button ZOOM Button VOL. MUTE Button ZOOM * Switches the sound MUTE...
  • Page 8 Accessories Accessories POWER SOURCE MENU ZOOM MUTE LASER 1.5V Batteries 2 (size AA) Remote Control Audio/Video Cable DVI cable Computer Cable Operating guide Mouse Connecting Cables PS/2 Mouse Cable MAC Serial Mouse Cable (IBM PC or Compatible) Optional Extras * Contact your dealer for buying these items. * Contact your dealer for replacing a new lamp.

  • Page 9: Adjustment Instructions

    Adjustment Instructions 1. Application Object 3) Adjust voltage of VREF and VMID for each R,G,B. ( SEE a Table below) This instruction is for the application to the LCD projection Monitor. 4) Press the ENTER key on the R/C for adjustment to store the adjustment value when adjustment is finished.

  • Page 10: Screen Position Adjustment

    PC Pattern 2) Select RGB1 as Input signal. Generator 3)Press the IN-START key on the R/C for adjustment to enter MW-60SZ12 adjustment mode and select Factory Default in adjustment mode. 7-1 Sequence of Gamma manually adjustment 4) Press the ENTER key to operate Factory Default and enter...
  • Page 11 PC Pattern Adjust 3 gradations Generator not to be distinguished. MW-60SZ12 (3) Sequence of Adjustment Color Bar 1) Adjust the screen coordinates as shown below. Gray Bar 1 2 3 ... . x x ..1 5 1 6 7) Set the video channel to NTSC 6CH.
  • Page 12 11. Component Gain Adjustment (4) Sequence of Adjustment 1) Turn the set on and set the input to RGB1 and then con- nect D-sub to RGB1 input terminal. (1) Required Test Equipments 2) nput the product code, production week/year, serial num- 1) Signal(DTV Signal 31-3) ber (if it is not input, write "01") to the S/W for writing DDC.

  • Page 13: Correction Of Screen Tilt & Keystone

    Correction of Screen Tilt & Keystone 1. Screen Tilt and Keystone cause of occurrence When the whole engin is leaned, Tilt occur and Keystone occur because of changing TCL when projection angle of engine is different or Mirror angle is different. TILT KEYSTONE Comm...
  • Page 14 2. New Mechanism for Adjustment The axis of rotation of engine sets back and the whole engine enable left and right rotation, up and down, left and right angle movement. When turning adjustment Knob of left/right in front, engine will move. When moving the engine base with left and right direction in front, engine will rotate.
  • Page 15 3. Working Method and Improvement for Correction Mechanism of Tilt and Keystone 3.1 Working Method (1) Put the 3t spacer on back of down parts of Mirror to correcting the Mirror angle of down parts - To correct difference between Mirror angle of C/A and JIG angle of lighting parts. (2) Looking at the screen, push the engine base for left/right direction in front of engine.

  • Page 16: Replacing The Lamp

    Replacing the Lamp * Connect your dealer or LG service center for replacing of new lamp. You must replace the lamp when: The projector image get darker or start to be deteriorated. ¯ The lamp indicator is red(red, flashing alternately).

  • Page 17: Description Of Each Block Circuits

    Description of each Block Circuits 1. Power Block 1.4 Function & Description of each terminals Circuit is to use the FLY BACK CONVERTER way for insula- (1) Vin terminal (4 PIN), Start circuit tion basically and composed of HYBRID IC STR F6658B for The Start circuit performs the operation start and stop of con- switching power, which has a POWER MOSFET within, and trol IC by voltage of Vin terminal (4 PIN).
  • Page 18 In light load, if output voltage decreases, the trans wire 1.5 STR G6153T(ST-BY STR) wound voltage in primary part also decreases proportionately (1) Description of each terminals and the Vin terminal voltage in primary part reaches lower than operation stop volate so that OCP circuit stops operat- Symbol Name Function...
  • Page 19 (4) Control mode (PWM Latch / Feed Back) (6) Soft Start, Protect circuit against over-current Control mode of IC uses MIX Mode which is switched to the 1) Protect circuit against over-current voltage control mode in lightload and and current control In main switch’s on, drain current is monitored.
  • Page 20 the coupling capacitors at pins ANA_IN1+ and ANA_IN2+. 2 MSP3410G : Sound Block 2) Demodulator: Standards and Features (1) Introduction The MSP 3440G is able to demodulate all TV-sound stan- The MSP 3410G family of single-chip Multistandard Sound dards worldwide including the digital NICAM system. Processors covers the sound processing of all analog TV- Standards worldwide.
  • Page 21 (3) Block Diagram Fig Signal flow block diagram of the MSP 3410G(input and output names correspond to pin names) - 21 -...
  • Page 22 3. LCD Driver Part 3.1 E07050K0A : Video Signal Processor IC for TFT-LCD (1) Scope These specifications apply to the E07050K0A CMOS IC. <Feature> 1) Operation clock frequency Max. 85 MHz 2) RGB swap function (RGB three-system set's video signals can be swapped via external settings) 3) Contrast and brightness adjustment functions 4) Ten-bit digital gamma correction function (look-up table type with interpolation process) 5) Image quality improvement function...
  • Page 23 3-2 E06070D0A : Video signal conversion IC for TFT-LCD (1) Scope (3) Block Diagram The E06070D0A provides a fast, 10bit latched decimating digital input, which drives 6 channel high voltage drive outputs. Flexible digital input for- mats, allow several 2-Stage DB[0:9] VID1 Latch...
  • Page 24 3.3 E01031F0A : TFT-LCD Level Shifter IC (2) Pin Layout (1) Scope The L3E01031F0A is an interface IC for driving TFT active matrix panels with built-in drivers. Its high voltage circuit acts as an interface between the control IC and the drivers on the LCD panel. <Feature>...

  • Page 25: Description Of Micom

    DESCRIPTION OF MICOM 1. Feature of MICOM Function 1-1. Signal Selection (1) Input signal selection : RGB1(Analog)/RGB2(Analog)/RGB3(Analog/Digital)/Video/S-Video/Component (2) A/V color standard automatic signal selection : NTSC/PAL/SECAM/NTSC 4.43/PAL M/PAL N/PAL 60 -> Automatic system detection (3) Specification of PC input signal : Refer to “PC Input Specification Table”. (4) Specification of Component input signal : 480I,480P,DVD 625Line,576P,720P,1080I 50Hz,1080I 60Hz 1-2.
  • Page 26 1-9. Warning OSD and Controlling LED Operation indicator LED Orange Stand-By Orange(flashing) lamp is cooling as power out(1 minutes),Ignore the power on input. Green Green(flashing) 7 Sec. : Cooled for a minute before turning off the lamp. 25 Sec. : Didn’t cool the lamp for a minute while turning off the lamp. Off (the state that AC S/W is off or the Power cable isn’t connected) Lamp Indicator LED Warning the life of lamp, Needing to replace the lamp ( over 10000H)
  • Page 27 1-13. Micom Controlled IC’s Chip Name Function 24LC256 EEPROM MSM82C55 PORT EXPANSION IC PW164 MICOM EMBEDDED SCALER IC VPC3230D VIDEO DECODER FLI2200 VIDEO DEINTERLACE IC ET7050 TIMING GENERATOR GAMMA/COLOR UNIFORMITY M62320 I2C Controlled OUTPUT PORT AD9884 M62352 DA CONVERTER AT24LC21 DDC 1/2B 1-14.
  • Page 28 Resolution Vertical Frequency Horizontal Frequency SVGA 800 x 600 56.250Hz 35.156KHz 800 x 600 60.317Hz 37.879KHz 800 x 600 72.188Hz 48.077KHz 800 x 600 75.00Hz 46.875KHz 800 x 600 85.061Hz 53.674KHz 800 x 600 100.00Hz 64.016KHz 1024 x 768 43.479Hz 35.522KHz 1024 x 768 60.004Hz...
  • Page 29 1-16. S-VIDEO Input Specification : NTSC/PAL Specification Item Remark NTSC M Video Input applicable 3.579545 / 60 Hz PAL B,G,H,I System 4.433618 / 50 Hz 1-17. Component(DVD/HD STB) Input Specification Specification Proposed V-Freq(KHz) H-Freq(KHz) Resolution SDTV,DVD 480I 15.73 640 x 480 59.94 SDTV,DVD 480I 15.63...

  • Page 30: Block Diagram

    2. Block Diagram PW164 A2~A1 A1~A0 D15~D0 D7~D0 IRRCVR0 IRRCVR1 PORTA0 PORTB0 SCDT PORTA1 PORTB1 PORTA2 8255A Parallel PORTB2 TEMP_DET E_SDA PORTA3 Controller LAMP_ON_DET PORTB3 E_SCL PORTA4 CASE_DET 3503_CS PORTB4 SDA_2 PORTA5 62352_CS1 PORTB5 PC_SEL2 SCL_2 PORTA6 SDAT5 PORTB6 PORTA7 SCLK5 PORTB7 EXTINT0...
  • Page 31 2-1. Description of Control Part Symbol Active Reset Function A19~A0 Address Bus D15~D0 Data Bus Read Enable Write Enable IRRCVR0 IRRCVR0 Remote Control IR Signal : IR is NEC Format IRRCVR1 IRRCVR1 Not Used PORTA0 C Bus Clock & Data Line PORTA1 AD9884, FLI2200, VPC3230D, CXA2101 PORTA2...
  • Page 32 Symbol Active Reset Function N.C. No connection KEY_IN3 Inputs for KEY Scanning KEY_OUT1 KEYPAD polling output 1 KEY_OUT2 KEYPAD polling output 2 KEY_OUT3 KEYPAD polling output 3 SDAT ET7050,M62352 data line SCLK ET7050,M62352 clock line ET7050-CSEL ET7050 chip selection (enable) line M62352_CS M62352 selection (enable) line M62352_CS2...

  • Page 33: Block Diagram

    Block Diagram - 33 -...

  • Page 34: Exploded View

    EXPLODED VIEW - 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 12 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 3550V00160A COVER,SPEAKER BOX RIGHT...

  • Page 36: Replacement Parts List

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC1810 0IMCRKE004A IC,KIA7427F, KEC SOT89-3P R/TP HI IC,PQ05DZ1U SHARP 5, SMD TYPE R/T IC1870 0IMCRSH001A IC801B 0ISH817300B IC,PC817XF3 4D PHOTO COUPLER 0IPH740400G IC,74HC04D HEX INVERTER 14P,SOP T IC1871 IC802B 0ISH817300B...
  • Page 37 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 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 CONNECTOR (CIRC),2.36PAI 1P P3171 6602V12001G CONNECTOR,1.25MM 8PINP 53261-0890 JPN-MO P802B 366-009D CONNECTOR (CIRC),2.36PAI 1P P3341 366-932B CONNECTOR,2.5MM 3P GIL-G LG CABLE S (STI P802C 366-009D CONNECTOR (CIRC),2.36PAI 1P P3381 6602V12001G CONNECTOR,1.25MM 8PINP 53261-0890 JPN-MO CONNECTOR (CIRC),2.5MM 3P G P3501 P802B...
  • Page 42 SW1701 6600VR1004A SWITCH,TACT SKHMPW 5P CHIP J-ALPS NON MNR-14-E0A-J-101 R OHM 100 OH RA1638 0RRZVTA001A SW3501 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON 0RRZVTA001A MNR-14-E0A-J-101 R OHM 100 OH 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON RA1639 SW3502 RA1640 0RRZVTA001A...
  • Page 43 6200VJT001C ACCESSORIES L1561 6200VJT001C FILTER,BMK351 NIIGATA 50VOLT 1A 340P L1562 6200VJT001C FILTER,BMK351 NIIGATA 50VOLT 1A 340P 3828VA0349A MANUAL,OWNERS RE01JB MW-60SZ12 LG EN L1563 6200VJT001C FILTER,BMK351 NIIGATA 50VOLT 1A 340P 6710V00086C REMOTE CONTROLLER RE-01JB,LASER,MW-60SZ12 FILTER,BMK351 NIIGATA 50VOLT 1A 340P L1564 6200VJT001C...
  • Page 49 MAIN (TOP) SOUND (TOP) POWER (TOP) POWER SWITCH (TOP) CONTROL (TOP) INTERFACE (TOP) PRE AMP (TOP) BALLAST INTERFACE (TOP)
  • Page 50 MAIN (BOTTOM) SOUND (BOTTOM) AV (BOTTOM) PC (BOTTOM) DVI (BOTTOM) CONTROL (BOTTOM) INTERFACE (BOTTOM) AV (TOP) PC (TOP) DVI (TOP)

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