LG Flatron L2323T Service Manual

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Specifications (46 pages)

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Page 1 %%% %# Model Description MODEL L2323AL BRAND Part No. 3828TSL096C SUFFIX ALUKT Product Name FLATRON L2323T Printing Specification 1. Trim Size (Format) : 215mm x 280mm 2. Printing Colors • Cover : LG COLOR • Inside : Black 3. Stock (Paper) Snow white paper 150 g/ •...
Page 2 D D D D Pagination sheet Pagination sheet English English English English English Front Inside English English Front Cover Cover …… …… English Rear Cover Inside Rear Cover...
Page 3: Color Monitor
Website:http://biz.LGservice.com E-mail:http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-46 MODEL: L2323T (L2323AL-AL**T) ) **Same model for SVC CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Page 4: Table Of Contents
CONTENTS SPECIFICATIONS ........... 2 TROUBLESHOOTING GUIDE ......16 PRECAUTIONS ............4 WIRING DIAGRAM ..........23 TIMING CHART ............5 EXPLODED VIEW(DISPLAY) .........24 OPERATING INSTRUCTIONS ........ 6 EXPLODED VIEW(MEDIA STATION) .....26 BLOCK DIAGRAM ..........13 REPLACEMENT PARTS LIST .......28 DESCRIPTION OF BLOCK DIAGRAM....14 PIN CONFIGURATION..........41 ADJUSTMENT ............
Page 5: Signal Connector Pin Assignment
Signal Connector Pin Assignment • DVI-D Connector Signal (DVI-D) Signal (DVI-D) T. M. D. S. Data2- Hot Plug Detect & T. M. D. S. Data2+ T. M. D. S. Data0- T. M. D. S. Data0+ T. M. D. S. Data2/4 Shield "...
Page 6: 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 7: Timing Chart
TIMING CHART VIDEO SYNC << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Back Porch Total Period Video Active Time Front Porch Sync Duration Sync Mode Resolution Frequency Clock Sort Polarity 31.47 640x350 25.175 –...
Page 8: Operating Instructions
OPERATING INSTRUCTIONS FRONT VIEW SIDE VIEW Front Control Panel MEDIA STATION REAR VIEW Fan: Should the temperature of the media station rise above a preset level, the fan will start up automatically to cool down the unit. 1. Connect the P&D cable 2.
Page 9: Front Control Panel
Front Control Panel 1. Remote Control Sensor 6. MENU Button Use this button to enter or exit On Screen Display. 2. Power Button Use this button to turn the display on or off. 7. PR. -/PR+, VOL. -+ <Power (DPMS) Indicator> •...
Page 10 SVC OSD 1) Turn off the power switch at the front side of the display. 2) Wait for about 5 seconds and press MENU, PR+ and VOL+ with in 1 second interval. 3) The SVC OSD menu contains additional menus that the User OSD menu as described below. a) ELAP.
Page 11: Remote Control
Remote Control For detailed instructions of each button on the remote control, refer to the appropriate pages of this manual. MUTE To select mute on or off. POWER Use this button to turn the display on or off. TV/AV I/II SOURCE Use this button to select an input signal.
Page 12 Remote Control /SSM AUTO Button •This function is to automatically search the available channels. It is available to the TV signal inputs only. •This function is to automatically adjust your display image to the ideal settings for the current screen resolution size (display mode). It is available to the PC analog signal input only.
Page 13 Remote Control-PIP/POP Function PIP (Picture in Picture) The sub-screen is changed in the order shown below. : SMALL -> LARGE -> OFF POP (Picture out Picture) The sub-screen is changed in the order shown below. : POP1 -> POP2 -> POP3 -> POP4 -> OFF POP2 POP1 AUTO...
Page 14 Remote Control-TELETEXT Function TEXT /SSM To select the teletext on or off. The main index page or the last selected page appears on the screen together with an information headline and an option line at the bottom of the screen. UPDATE Press the button to appear the TV programme.
Page 15: Block Diagram
BLOCK DIAGRAM S-Video CVBS(AV2) SCART(AV1) Tuner CVBS IN Vid eo Deco der (VPC3230D) Deinterlacer (FLI2310) 24VS 5VST Main Vi deo Sub Video In put In put .. ) SPIN( .. ) .. ) MPINA ( MPINA ( .. ) HPTVIN ( D-SUB DVI-D Display...
Page 16: Description Of Block Diagram
DESCRIPTION OF BLOCK DIAGRAM 1. Input Selection Circuit 7. Audio Decoder This block is composed of 74VHCT126A(U10)and This block is composed of MSP3410G (U3) and peripheral devices. There are two inputs, Analog and peripheral devices. P89C662(U43) controls this IC Digital H/V Sync. through IIC Line.
Page 17: Adjustment
ADJUSTMENT Windows EDID V1.0 User Manual 2. EDID Read & Write 1) Run WinEDID.exe Operating System: MS Windows 98, 2000, XP Port Setup: Windows 98 => Don’t need setup Windows 2000, XP => Need to Port Setup. This program is available to LCD Monitor only. 1.
Page 18: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. OUT OF ORDER ON POWER NO POWER (POWER INDICATOR OFF) Check Fail Fail Replace Connector or Check Stand-by 5V Output the Power B’d 5V on Power B’d On Power B’d Pass Pass Check Fail Fail Check Ctrl signal Replace 24V Output the Power B’d...
Page 19 2. NO RASTER STATE NO RASTER ON ANALOG SIGNAL ‘A’ Process Check Replace Device Check Ctrl signal Check LED Blue 3.3V Main B’d : Power Line U801 Pin#32 Status on (U801) (LVDS PDWN) Display Head U801, U4 High Amber Check Check Scaler(U201) U12(AD9888)
Page 20 NO RASTER ON DIGITAL SIGNAL Repeat ‘A’ Process Pass Fail Rewrite EDID Check The EDID Data Data Pass Check U2(Sil161B) - H/V Sync - Output Clock - Output Data - Power Down Ctrl Signal (LVDS-PDWN) - 18 -...
Page 21 NO RASTER ON DTV SIGNAL Repeat ‘A’ Process Pass Check Resoldering Fail Digital Switch for DTV Or Replace (Main B’d : U7,U15) Device Pass Check Input Signal Connection (Y/Pb/Pr?) Not support 480i Pass Check *Check the Power U14(AD9883) Fail (3.3V-DTV) *In/Out H/V Sync *Output Data *Replace Device...
Page 22 NO RASTER ON AV SIGNAL NO RASTER ON TV SIGNAL (CVBS, S-VIDEO, DVD Y/Pb/Pr) Check Replace Device The connection Repeat . Main B’d: U801 Between AV B’d ‘A’ Process . AV B’d: U702 And Tuner B’d Pass High Check Resoldering Replace Device Check Fail...
Page 23 3. SOUND TROBLE SHOOTING NO SOUND OUTPUT Check Connector *AV B’d: J601 *Sound B’d: J1, J8 Pass Check Power Line Check the Check Pass *U7 output(8V) the sound output when Line out Jack *5VA any sound source input or Speaker Pass Fail Replace the...
Page 24 4. TELETXT TROBLE SHOOTING NO TELETXT OUTPUT Check Connector *AV B’d: J601, 704(Connector & component of signal Line) *Sound B’d: J2, J8(Connector & component of signal Line) Pass Check Pass R/G/B/FB Check Signal input of U601 U601 #1, 2, 3, 79 Check Power Line *U603 #20(5V) *U6 #8(5V)
Page 25: Wiring Diagram
WIRING DIAGRAM(DISPLAY) WIRING DIAGRAM(Media Station) Connector Ass’y P/N: FAN P/N: 6631T20010D 5900T02001A Connector Ass’y P/N: 6631T20010D Connector Ass’y P/N: 6631T20022A - 23 -...
Page 26: Exploded View(Display)
EXPLODED VIEW(DISPLAY) - 24 -...
Page 27 EXPLODED VIEW PARTS LIST(DISPLAY) Description Ref. No. Part No. CABINET ASSEMBLY, L2323AL BRAND 3090TKE004 . 3091TKE005B LCD(LIQUID CRYSTAL DISPLAY), LC230W01-A2K2 LG PHILPS TFT COLOR WXGA 450NITS, LVDS 6304FLP111A BACK COVER ASSEMBLY, L2323AL 3808TKE002 OEM 3809TKE003D TILT SWIVEL ASSEMBLY, L2320AL . . 3043TKK118A PWB(PCB) ASSEMBLY,SUB, L2323AL.ALRDR CONTROL TOTAL BRAND CL-46...
Page 28: Exploded View(Media Station)
EXPLODED VIEW(MEDIA STATION) - 26 -...
Page 29 EXPLODED VIEW PARTS LIST(MEDIA STATION) Description Ref. No. Part No. COVER ASSEMBLY, L2323AL TOTAL . MEDIA 3551TKK039B METAL ASSEMBLY, FRAME MEDIA RIGHT(L2320AL) 4951TKK125A COVER ASSEMBLY, L2320AL BASE 3550TKK324 . 3551TKK038A PWB(PCB) ASSEMBLY, INTERFACE, L2320AL INTERFACE TOTAL BRAND CL-46 6871TKT289A PWB(PCB) ASSEMBLY, POWER, L2323AL POWER TOTAL BRAND CL-46 6871TPT255B PWB(PCB) ASSEMBLY, MAIN, L2323AL ALRDR BRAND CL-46 TOTAL 6871TMT483A...
Page 30: 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: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
Page 31 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C180 0CH3104K946 100000PF 50V Z F 2012 R/TP C557 0CH3104K946 100000PF 50V Z F 2012 R/TP C181 0CH3104K946 100000PF 50V Z F 2012 R/TP...
Page 32 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0DS301109AA MMBD301LT1 TP MOTOROLA SOT23 U801 0ITH638300B "THC63LVDM83R THINE 56P,TSSOP" 0DS226009AA KDS226 TP KEC SOT-23 80V 30 U802 0IFA111733A RC1117S-33 SOT-223 TP 1A 3.3...
Page 33 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP R104 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP 0RJ2201D677 2200 OHM 1/10 W 5% 1608 R/TP R106...
Page 34 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R405 0RJ0102D677 10 OHM 1/10 W 5% 1608 R/TP RA13 0RHZTCZ001E RCA SMART 47OHM 1/16 W 5% 32 R420 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP...
Page 35 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION VIDEO BOARD C613 0CH6101K416 100PF 50V J NP0 2012 R/TP CAPACITORS C614 0CK152CK51A 1500PF 1608 50V 10% R/TP B(Y C301 0CE107WH6DC 100UF MVK 25V 20% R/TP(SMD)
Page 36 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C720 0CC471CK41A 470PF 1608 50V 5% R/TP NP0 C948 0CK105CF94A "1UF 1608 16V 80%,-20% R/TP F" C721 0CC101CK41A 100PF 1608 50V 5% R/TP NP0...
Page 37 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION ZD801 0DZ120009CF UDZ 12B TP ROHM-K SOD323 200 L808 6210TCE001S HU-1M2012-121 CERATECH 2012M ZD802 0DZ620009HB UDZ S 6.2B TP ROHM SOD323 20 L809...
Page 38 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R601 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP R736 0RJ0752D477 75 OHM 1/10 W 1% 1608 R/TP R602 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP...
Page 39 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R943 0RJ1002D677 10K OHM 1/10 W 5% 1608 R/TP 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y R945 0RJ0102D677 10 OHM 1/10 W 5% 1608 R/TP...
Page 40 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0DZ360009EB UDZ 3.6B TP ROHM SOD323 200M 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP 0DZ360009EB UDZ 3.6B TP ROHM SOD323 200M 0RJ4701D677...
Page 41 DATE: 2003. 10. 24. DATE: 2003. 10. 24. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP 0RJ4701D677...
Page 42 P101 6630TGA004A DC-1503FAP DAE HUNG 15P 2.29 0RD4300Q609 430 OHM 1/4 W(3.4) 5.00% TA5 TU101 6700NF0004C TAFH-S313D LG INOTEK PAL FS 0RD1001Q609 1K 1/4W(3 5% TA52 0RN2001F409 2K OHM 1/6 W 1.00% TA52 0RN2001F409 2K OHM 1/6 W 1.00% TA52...
Page 43: Pin Configuration
PIN CONFIGURATION S524A40X10/40X20/40X40 SCL SDA S524A40X10/ 40X20/40X40 NOTE: The S524A40X10/40X20/40X40 is available in 8-pin DIP, SOP, and TSSOP package. Figure 2-2. Pin Assignment Diagram Table 2-1. S524A40X10/40X20/40X40 Pin Descriptions Circuit Name Type Description Type A0, A1, A2 Input Input pins for device address selection. To configure a device address, these pins should be connected to the V or V of the device.
Page 44 Start/Stop HV Generation Logic Timing Control Control Logic EEPROM Cell Array Slave Address Word Address 128 x 8 bits Comparator Pointer decoder 256 x 8 bits 512 x 8 bits Column Decoder Data Register and ACK Figure 2-1. S524A40X10/40X20/40X40 Block Diagram - 42 -...
Page 45 SIL161BCT100 C O N T R O L S G PO E V E N 8-bits RE D Q O 2 Q E13 Q O 3 Q E12 Q O 4 Q E11 Q O 5 Q E10 Q O 6 Q E9 Q O 7 Q E8...
Page 46 AD988KS-205 ANALOG PIN 1 REF BYPASS IDENTIFIER RMIDSCV SOGIN0 SOGIN1 AD9888 TOP VIEW (Not to Scale) BMIDSCV CKINV CLAMP PIN CONFIGURATION - 44 -...
Page 47 ACTIVITY SYNC SLICER DETECT SYNC SEPARATOR COMP MUX5 NEGATIVE PEAK INTEGRATOR SYNC CLAMP SOGIN0 VSYNC SOGIN1 MUX1 HSYNC0 SOGOUT HSYNC1 MUX5 ACTIVITY DETECT POLARITY DETECT HSYNCOUT PIXEL CLOCK CLOCK MUX2 GENERATOR COAST MUX3 POLARITY DETECT VSYNC0 VSYNCOUT VSYNC1 MUX5 ACTIVITY POLARITY MUX4 DETECT...
Page 48: Schematic Diagram
SCHEMATIC DIAGRAM 1. SCALER - 46 -...
Page 49 2. MEMORY - 47 -...
Page 50 3. DVI-I - 48 -...
Page 51 4. D-SUB - 49 -...
Page 52 5. DTV1(ADD9883) - 50 -...
Page 53: Dvi-D/Dtv2
6. DVI-D/DTV2 - 51 -...
Page 54: Micom
7. MICOM - 52 -...
Page 55 8. PND CABLE, LVDS-OUPUT - 53 -...
Page 56 9. POWER & B TO B CONNECTOR - 54 -...
Page 57 10. KEY & POWER-KEY - 55 -...
Page 58 11. AUDIO PROCESSOR - 56 -...
Page 59 12. TELETEXT & V-CHIP - 57 -...
Page 60 13. AUDIO JACK - 58 -...
Page 61 14. CONNECTOR - 59 -...
Page 62 15. TUNER - 60 -...
Page 63 16. VIDEO(VPC3230D) - 61 -...
Page 64 17. VIDEO(FLI2310) - 62 -...
Page 65 18. VIDEO(CONNECTOR) - 63 -...
Page 66 19. VIDEO(POWER) - 64 -...
Page 67 20. VIDEO(B TO B CONNECTOR) - 65 -...
Page 68 21. INTERFACE#1 - 66 -...
Page 69 22. INTERFACE#2 - 67 -...
Page 70 Nov. 2003 P/NO : 3828TSL096C Printed in Korea...

LG Flatron L2323T Service Manual

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