Related Manuals for LG Flatron L1510M
Summary of Contents for LG Flatron L1510M
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Page 1: Color Monitor
COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-38 FACTORY MODEL: LM505J MODEL: L1510M (LM505J-GL) CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. -
Page 2: Table Of Contents
CONTENTS SPECIFICATIONS ........... 2 ADJUSTMENT ............10 PRECAUTIONS ............3 TROUBLESHOOTING GUIDE ......11 TIMING CHART ............4 PRINTED CIRCUIT BOARD........15 OPERATING INSTRUCTIONS ........ 5 EXPLODED VIEW...........17 WIRING DIAGRAM ..........7 REPLACEMENT PARTS LIST .......19 BLOCK DIAGRAM ........... 8 PIN CONFIGURATION..........23 DESCRIPTION OF BLOCK DIAGRAM.... -
Page 3: Precautions
PRECAUTION WARNING FOR THE SAFETY-RELATED COMPONENT. WARNING BE CAREFUL ELECTRIC SHOCK ! • There are some special components used in LCD monitor that are important for safety. These parts are • If you want to replace with the new backlight (CCFL) or marked on the schematic diagram and the inverter circuit, must disconnect the AC adapter... -
Page 4: Timing Chart
TIMING CHART VIDEO SYNC Total Video Blanking Sync Back Front Sync Frequency MODE H / V Resolution Period Active Time Duration Porch Porch Polarity Clock ( E ) Time ( A ) ( B ) ( D ) ( F ) ( C ) 25.175 31.468 KHz... -
Page 5: Operating Instructions
OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW HEAD PHONE AUDIO IN Power Connector See front control panel D-Sub Signal Connector Front Control Panel 1. Power Button 4. AUTO/SELECT Button Use this button to turn the display on or off. Use this button to enter a selection in the On <Power (DPMS) Indicator>... - Page 6 OPERATING INSTRUCTIONS Front Control Panel 5. LIGHT VIEW CONTROLS LOCKED/UNLOCKED This function optimizes the brightness, contrast or : MENU and Button for 3 seconds color value to the surrounding conditions and Use this button to enter or exit the On Screen settings and enables you to enjoy the most suitable Display.
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Page 7: Wiring Diagram
Connector Ass’y P/N: 6631T11012R 6631T20015E Connector Ass’y P/N: 6631T20008X Connector Ass’y P/N: Connector Ass’y P/N: 6631T20020E J901 J904 J701 P902 J702 J707 J705 J706... -
Page 8: Block Diagram
< MAIN BLOCK> DSCL SCLK U702 MICOM U502 EEPROM DSDA U501 SDATA EEPROM U701 24LC02 24 LC08 (MTV312) Sc hmit t Trigger Hsyncm Panel (74 HCT14 A) Control Vsyncm V sync 2 Hsync2 Inter face ADC/PLL/Scaler 20 Pin LVDS (GMZAN-2) U201 Connect or U402... -
Page 9: Description Of Block Diagram
DESCRIPTION OF BLOCK DIAGRAM 1. Scaler One chip IC(GMZAN-2, U201) GMZAN-2 (U201) is one chip IC which it supports four internal function blocks of Video Amp, PLL, A/D converter and Video processor. Video signal (0.7Vp.p) clamped through C209, 208, 207 with matching IC’s proper cut off voltage. This signal is processed as a proper 8 bit digital signal by U201’s amplifying, phase locking, A/D converting, and scaling operations. -
Page 10: Adjustment
ADJUSTMENT All adjustment are thoroughly checked and corrected when the monitor leaves the factory, but sometimes 2. Adjustment for White Balance several minor adjustment may be required. 1) Display color 0,0 pattern at Mode 13. Adjustment should be following procedure and after 2) Set External Bright to MAX position and Contrast to warming up for a minimum of 10 minutes. -
Page 11: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK POWER CHECK J707 BOARD, AND FIND VOLTAGE OUT A SHORT POINT PIN1&PIN2(12V) AS OPENING PIN4(5V)? EACH POWER LINE CHECK U501 PIN 8 CHECK U803. VOLTAGE (5V) ? CHECK CHECK 5VS LINE U805 Voltage (OPEN CHECK) (5V) ? - Page 12 2. NO RASTER (OSD IS NOT DISPLAYED) – INVERTER NO RASTER (OSD IS NOT DISPLAYED) J705 PIN1 CHECK POWER BOARD 12V? CHECK MICOM INV J705 PIN8 ON/OFF PORT. 1. CONFIRM BRIGHTNESS OSD CONTRL STATE. J705 PIN7 2. CHECK MICOM DIM-ADJ PORT CHECK PULSE AS...
- Page 13 3. NO RASTER (OSD IS NOT DISPLAYED) – gmZAN2 NO RASTER (OSD IS NOT DISPLAYED) U201 POWER PINS CHECK U802, U806 3.3V? 1. CHECK PIN141, 142 U201 PIN141, 142 SOLDERING CONDITION OSCILLATE AS 20MHz? 2. CHECK X201 3. TROUBLE IN U201 U401 PIN31 IS 65MHz CLOCK? PIN27 IS 48KHz H-SYNC?
- Page 14 4. NO RASTER (OSD IS DISPLAYED) – gmZAN2 NO RASTER (OSD IS DISPLAYED) U201 POWER PIN CHECK U802, U806 3.3V? 1. CHECK PC CHECK R,G,B INPUT? 2. CHECK SIGNAL CABLE & D-SUB CONNECTOR U201 PIN 87, 91, 95 LINE CHECK CHECK H-SYNC LINE H-SYNC INPUT (D-SUB→U701→MICOM...
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Page 15: Printed Circuit Board
PRINTED CIRCUIT BOARD 1. MAIN BOARD 2. AUDIO BOARD... - Page 16 3. POWER BOARD(Component Side) 4. POWER BOARD(Solder Side) 5. CONTROL BOARD LIGHT-VIEW MENU DOWN LEFT RIGHT SELECT MUTE SW301 SW302 SW306 SW303 SW304 SW305 SW307 SW308 SW309 R308 POWER R302 R307 ZD302 LED301 Model:LM505J-KEY Date:2002.07.10 J301 P/N:6870T516C10 R301...
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Page 17: Exploded View
EXPLODED VIEW... - Page 18 Description Ref. No. Part No. CABINET ASSEMBLY, LM505J BRAND 3090TKL049A (M/MEDIA) 3091TKL050A LCD(LIQUID CRYSTAL DISPLAY), LM150X07-B4 LG PHILPS TFT COLOR 15.0 INCH XGA LVDS SMM 6304FLP024A BACK COVER ASSEMBLY, LM505J 3808TKL035A (M/MEDIA) 3809TKL032A TILT SWIVEL ASSEMBLY, LB500J . (BASE) 3043TKK097A TILT SWIVEL ASSEMBLY LB500J .
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Page 19: Replacement Parts List
REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE SAFETY Mark AL ALTERNATIVE PARTS DATE: 2002. 7. 15. DATE: 2002. 7. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. - Page 20 DATE: 2002. 7. 14. DATE: 2002. 7. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION U701 0IMO741420B MC74HCT14ADR2 14P,SOIC TP LEVEL R504 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP U702 0ISG240260A M24C02-MN6 SO8 TP 2K SERIAL IIC...
- Page 21 DATE: 2002. 7. 14. DATE: 2002. 7. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R807 0RJ1003D677 100K OHM 1/10 W 5% 1608 R/TP R301 0RD4701Q509 4.7K OHM 1/4 W (3.4) 2% TA52 R810 0RJ0221D677 2.2 OHM 1/10 W 5% 1608 R/TP...
- Page 22 DATE: 2002. 7. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION D903 0DS181009AA KDS181 TP KEC SOT-23 80V 300M U901 0ISG749600A TDA7496L 20DIP BK 2W+2W AMP WIT U902 0ISG744900B TDA7449 20DIP ST TONE CONT. AUD U903 0ISS780800J KA78M08R 3P,D-PAK TP VOL. REGUL L901 6210TCE001G HH-1M3216-501 CERATEC 3216MM R/...
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Page 23: Pin Configuration
PIN CONFIGURATION MYSON 42PIN BK DA2/P5.2 VSYNC DA1/P5.1 HSYNC DA0/P5.0 DA3/P5.3 DA4/P5.4 DA5/P5.5 DA8/HALFH DA9/HALFV HBLANK/P4.1 VBLANK/P4.0 DA7/HCLAMP DA6/P5.6 I SDA/P3.4/T0 P2.6/DA12 I SCL/P3.5/T1 P2.5/DA11 STOUT/P4.2 P2.4/DA10 P2.2/AD2 HSCL/P3.0/Rxd P1.0 HSDA/P3.1/Txd P1.1 P2.0/AD0 P3.2/INT0 P2.1/AD1 P1.2 P1.7 P1.3 P1.6 P1.4 P1.5... - Page 24 PIN FUNCTION SYMBOL Reset Function DA2/P5.2 PWM DAC output/General purpose I/O DA1/P5.1 PWM DAC output/General purpose I/O DA0/P5.0 PWM DAC output/General purpose I/O Active High Reset Positive Power Supply Ground Oscillator output Oscillator input ISDA/P3.4/T0 Master IIC data/General Purpose I/O / T0 ISCL/P3.5/T1 Master IIC clock/General Purpose I/O / T1 STOUT/P4.2...
- Page 25 gmZAN2-160P GENESIS MICROCHIP OSD_DATA3 ADC_GND1 OSD_FSW ADC_VDD1 MFB11 ADC_GND2 MFB10 ADC_VDD2 DVDD PPWR DVSS PBIAS DAC_DGNDA DAC_DVDDA PLL_DVDDA CVSS3 Reserved PLL_DGNDA SUB_DGNDA SUB_SGNDA PLL_SGNDA Reserved PLL_SVDDA RVDD3 DAC_SVDDA DAC_SGNDA SVDD gmZAN2(160-Pin PQFP) SVSS RVSS4 TCLK RVDD2B XTAL CVSS2A PLL_RVDDA CVDD2 PLL_RGNDA Reserved PD10...
- Page 26 System-level Block Diagram CVDD ADC_VDD RVDDA gmZAN2 Core RGNDA ADC_GNS Blue TCLK Green SVDDA SGNDA Hsync To Clock Generator DVDDA DGNDA R+,G+,B+ On-Screen Even Data OSD-FSW Display OSD-CLK PCLKA Controller OSD-HREF OSD-VREF PDISPE Odd Data MPU with HCLK EEPROM HDATA Pbias +12V Pbias...
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Page 27: Pin Configuration
MC74HCT14ADR2 14P BLOCK DIAGRAM PIN CONFIGURATION PIN 14=V PIN 7=GND...