Internal Use OnlyNorth/Latin America Europe/Africa Asia/Oceania http://aic.lgservice.com http://eic.lgservice.com http://biz.lgservice.com LCD MONITOR TV SERVICE MANUAL CHASSIS : LP92C MODEL : M227WAP M227WAP-PMM CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL63261604(1002-REV00) Printed in Korea CONTENTS CONTENTS .............................................................................................. 2 PRODUCT SAFETY ..................................................................................3 SPECIFICATION ........................................................................................6 ADJUSTMENT INSTRUCTION ...............................................................13 TROUBLE SHOOTING ............................................................................19 BLOCK DIAGRAM...................................................................................23 EXPLODED VIEW .................................................................................. 24 SVC. SHEET ............................................................................................... Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes -2- LGE Internal Use Only PRECAUTION WARNING FOR THE SAFETY-RELATED COMPONENT. WARNING • There are some special components used in LCD monitor that are important for safety. These parts are marked on the schematic diagram and the Exploded View It is essential that these critical parts should be replaced with the manufacturer’s specified parts to prevent electric shock, fire or other hazard. BE CAREFUL ELECTRIC SHOCK ! • Do not modify original design without obtaining written permission from manufacturer or you will void the original parts and labor guarantee. • Handle with care wires or connectors of the inverter circuit. If the wires are pressed cause short and may burn or take fire. TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT. Leakage Current Hot Check Circuit • If you want to replace with the new backlight (CCFL) or inverter circuit, must disconnect the AC adapter because high voltage appears at inverter circuit about 650Vrms. AC Volt-meter • Must mount the module using mounting holes arranged in four corners. • Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen. To Instrument's exposed METALLIC PARTS 0.15uF 1.5 Kohm/10W • Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to the panel. • Protect the module from the ESD as it may damage the electronic circuit (C-MOS). Good Earth Ground such as WATER PIPE, CONDUIT etc. When 25A is impressed between Earth and 2nd Ground for 1 second, Resistance must be less than 0.1 Ω *Base on Adjustment standard • Replaceable batteries • Make certain that treatment person’s body are grounded through wrist band. • Do not leave the module in high temperature and in areas of high humidity for a long time. • The module not be exposed to the direct sunlight. * CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS • Avoid contact with water as it may a short circuit within the module. • If the surface of panel become dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may damage the panel.) CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation. Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes -3- LGE Internal Use Only Use only an anti-static type solder removal device. 4. FETVOM. 5. Do not test high voltage by "drawing an arc". 3. suctiontype solder removal device or with solder braid. lubrication of contacts in not required. -4- LGE Internal Use Only . a. 5. Use with this receiver only the test fixtures specified in this service manual. Inc. Closely inspect the solder area and remove any excess or splashed solder with a small wire-bristle brush. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. Always remove the test receiver ground lead last. Electrostatically Sensitive (ES) Devices Some semiconductor (solid-state) devices can be damaged easily by static electricity.) General Soldering Guidelines 1. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ES devices. General Servicing Precautions 1. and hold it there only until the solder flows onto and around both the component lead and the foil. Such components commonly are called Electrostatically Sensitive (ES) Devices. Heat the component lead until the solder melts. 7. First. NOTE: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication. 1. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device. CAUTION: Do not connect the test fixture ground strap to any heat sink in this receiver. Unless specified otherwise in this service manual. low-wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500ºF to 600ºF. Do not use freon-propelled spray-on cleaners. 4. 4. Keep the soldering iron tip clean and well tinned. Alternatively. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this service manual might be equipped. 2. Do not spray chemicals on or near this receiver or any of its assemblies.5 inch. 6. Only for training and service purposes unit under test. CAUTION: Work quickly to avoid overheating the circuit board printed foil. or 1. Do not use freon-propelled chemicals. Always unplug the receiver AC power cord from the AC power source before. and observe all other safety precautions. cotton-tipped stick or comparable non-abrasive applicator.25cm) brush with a metal handle. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. c. CAUTION: Work quickly to avoid overheating the circuit board printed foil. Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead. CAUTION: Be sure no power is applied to the chassis or circuit. to prevent electrostatic charge buildup or exposure of the assembly. Allow the soldering iron tip to reach a normal temperature (500ºF to 600ºF) b. Thoroughly clean the surfaces to be soldered. 2. 3. c. Use a mall wirebristle (0. circuit board module or any other receiver assembly. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 2. 10% (by volume) Acetone and 90% (by volume) is opropyl alcohol (90%-99% strength) CAUTION: This is a flammable mixture. drain off any electrostatic charge on your body by touching a known earth ground. read and follow the SAFETY PRECAUTIONS on page 3 of this publication. Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40 parts lead. obtain and wear a commercially available discharging wrist strap device. b. Quickly draw the melted solder with an anti-static. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed. always follow the safety precautions. d. These can generate electrical charges sufficient to damage ES devices. 8. Quickly move the soldering iron tip to the junction of the component lead and the printed circuit foil. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam. Minimize bodily motions when handling unpackaged replacement ES devices. 6. All right reserved. Remember: Safety First. a. 6. Use the following soldering technique. Removing or reinstalling any component. Unless specified otherwise in this service manual. 5. Immediately before handling any semiconductor component or semiconductor-equipped assembly. which should be removed to prevent potential shock reasons prior to applying power to the Copyright LG Electronics. place the assembly on a conductive surface such as aluminum foil. touch the protective material to the chassis or circuit assembly into which the device will be installed. Immediately before removing the protective material from the leads of a replacement ES device. aluminum foil or comparable conductive material). clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner. Allow the soldering iron tip to reach normal temperature. Disconnecting or re-connecting any receiver electrical plug or other electrical connection. Connecting a test substitute in parallel with an electrolytic capacitor in the receiver. Use a grounded-tip. 3. Use the following unsoldering technique a. (500ºF to 600ºF) b. Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device (DVM. The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity. c.SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda. 7. 8. hold the soldering iron tip and solder the strand against the component lead until the solder melts. etc) equipped with a suitable high voltage probe. After removing an electrical assembly equipped with ES devices. CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard. Copyright LG Electronics. 2. Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the "U" with long nose pliers to insure metal to metal contact then solder each connection. Bend a small "U" in one end of a small gauge jumper wire and carefully crimp it around the IC pin. 5. Clean the soldered areas with a small wire-bristle brush. Carefully insert the replacement IC in the circuit board. Bend into a "U" shape the replacement transistor leads. Connect insulated 20-gauge jumper wire from the lead of the nearest component on one side of the pattern break to the lead of the nearest component on the other side. Remove defective diode by clipping its leads as close as possible to diode body. At IC Connections To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board. and clip off excess lead. Insert new transistor in the circuit board. apply additional solder. 2. Remove the defective copper pattern with a sharp knife. The following guidelines and procedures should be followed whenever this condition is encountered. Fuse and Conventional Resistor Removal/Replacement 1. Route the jumper wire along the path of the out-away copper pattern and let it overlap the previously scraped end of the good copper pattern. Replacement 1. Solder the IC connection. (It is not necessary to reapply acrylic coating to the areas). 2. Remove at least 1/4 inch of copper. When holes are the slotted type. Inc. to ensure that a hazardous condition will not exist if the jumper wire opens. Solder the overlapped area and clip off any excess jumper wire. Solder the connections. Clip each fuse or resistor lead at top of the circuit board hollow stake. carefully scratch away the solder resist and acrylic coating (if used) from the end of the remaining copper pattern. 1. Carefully crimp and solder the connections. Heat and remove all solder from around the transistor leads. 4. the following technique should be used to remove and replace the IC. 4. (Remove only as much copper as absolutely necessary). 4. Observing diode polarity. 2. Bend the two remaining leads perpendicular y to the circuit board. reheat them and if necessary. If they are not shiny. Power Output.IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent flat against the circuit foil. Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern. 3. 2. 2. 3. Transistor Device Removal/Replacement 1. Draw away the melted solder with an anti-static suction-type solder removal device (or with solder braid) before removing the IC. use the standard technique as outlined in paragraphs 5 and 6 above. Carefully remove the transistor from the heat sink of the circuit board. 2. 3. This technique involves the installation of a jumper wire on the component side of the circuit board. 3. wrap each lead of the new diode around the corresponding lead on the circuit board. (Use this technique only on IC connections). Replace heat sink. Remove the defective transistor by clipping its leads as close as possible to the component body. Carefully bend each IC lead against the circuit foil pad and solder it. Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or "lift-off" the board. 3. 4. Only for training and service purposes -5- LGE Internal Use Only . 6. "Small-Signal" Discrete Transistor Removal/Replacement 1. 3. Solder each transistor lead. Securely crimp each connection and solder it. 1. Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts. Inspect (on the circuit board copper side) the solder joints of the two "original" leads. All right reserved. 3. Diode Removal/Replacement 1. CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins. CAUTION: Be sure the insulated jumper wire is dressed so the it does not touch components or sharp edges. Removal 1. 5. Bend into a "U" shape the end of each of three leads remaining on the circuit board. When working with boards using the familiar round hole. 2. Securely crimp the leads of replacement component around notch at stake top. Carefully remove the damaged copper pattern with a sharp knife. Remove the heat sink mounting screw (if so equipped). 248(H) x 0. IEC specification. the adjustment. UL6500 EMC : CE.7 15 Color Gamut Normal 72% Panel(CIE1931) Copyright LG Electronics. Only for training and service purposes -6- ms Remark Typ. 3. IEC.86 mm(21. 2.5 The receiver must be operated for about 5 minutes prior to Safety : IEC/EN60065 EMI : EN55013 EMS : EN55020 4.4 Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM .3 Power Voltage : Standard input voltage (100 V . All right reserved.2 Relative Humidity : 65 % ±10 % 2. Specification Each part is tested as below without special appointment 2.3 + Falling Time : 3. Application Range.1 Temperature : 25 °C ± 5 °C (77 °F ± 9 °F).2(V) x16. FCC Part 15Class A/ B 2.2 Demanded other specification Safety : CE. LGE Internal Use Only . Inc.SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. (Without Inverter) Typ.11(V) mm 4 Outline Dimension 495.64(H) 268.5(D) mm 5 Aspect Ratio 16:9 6 Pixel Number 1920 x RGB x 1080 pixel 7 Pixel Pitch 0.6(H) x 292. Test method 3. 3.240 V ~.53 inch) diagonal 3 Active Display area 476.1 Performance : LGE TV test method followed.7M color (6bit with A-FRC) 10 Electrical Interface LVDS 11 Surface Treatment Hard coating(3H) & Anti-glare(Haze 25) 12 Operating Mode Normally White 13 Backlight Unit 4 CCFL (4 lamps) 14 Response Time Rising Time : 1. LM215WF1-TLA1 ( P/N : EAJ60156901) No Item Specification 1 Type TFT Color LCD Module Unit 2 Diagonal Size 546.5 inch) LCD Monitor TV used LP92C chassis. 50 / 60 Hz) • Standard Voltage of each products is marked by models 2.248(V) mm 8 Color arrangement RGB vertical Stripe 9 Color Depth 16. This spec sheet is applied to the 55 cm(21. Module Specification LGD. 1. CST : 40 °C ± 5° C 2. 1 TV No Item Specification 1 Market Central and South America 2 Broadcasting system NTSC Remarks PAL-M PAL-N 3 Receiving system BAND NTSC VHF 2 ~ 13 UHF 14 ~ 69 CATV 1 ~ 125 4 Receiving system Upper Heterodyne 5 Component Input (1EA) Y/Cb/Cr Y/Pb/Pr 6 CVBS Input (1EA) PAL. NTSC. Inc. SECAM. AV. RGB-PC.3 . PAL60 7 RGB Input RGB-PC Analog(D-SUB 15Pin) 8 HDMI Input (1EA) HDMI1-DTV/PC HDMI version 1. Support HDCP 9 Audio Input (3EA) RGB-PC/ DVI Audio Component L/R Input CVBS 10 Earphone out (1EA) Antenna.5. All right reserved. Component. SECAM. Only for training and service purposes -7- LGE Internal Use Only . General Specification 5. NTSC 4 System(Rear) :PAL50. HDMI1 Copyright LG Electronics. PC No Item Specification Remarks 1 Supported Sync. 1920x1080 @ 60Hz Recommend 1920x1080 @ 60Hz Max. Digital(DVI) 2 Operating Frequency Analog Horizontal Vertical 56 ~ 61 Hz Digital Horizontal 28 ~ 83kHz Vertical 48 ~ 61 Hz Analog Max. Only for training and service purposes -8- LGE Internal Use Only . Type Separate Sync. All right reserved.000 Hours(min) Lamp Life: 23”LGD:50.000 m (for Reliability) 3.000m(for FOS) 9 Operating Environment Temp : 10°C ~ 35°C 10 Storage Environment Temp : -10°C~60°C non condensing Humidity : 20 % ~ 80 % Humidity : 5 % ~ 90 % non condensing Copyright LG Electronics. 1920x1080 @ 60Hz Recommend 1920x1080 @ 60Hz 3 Resolution Digital 30 ~ 69kHz 4 Input Voltage Voltage :100 – 240 V ac .2 RGB .(RGB). Inc. 50 Hz or 60Hz 5 Inrush Current Cold Start : 50 A 6 Operating Condition Power S/W On On mode Sync (H/V) Typ. On/On Active Blue 50W Max On/On Active Blue 65W Off Amber 1W Off Off 0.5. On/On Video LED Wattage Active Blue 45W Max On/On Active Blue 60W Typ.000 Hours(min) 8 Using Altitude 5.5W Sleep mode Off mode M227WAP M237WAP Off/On On/Off Power S/W Off Hot : 120 A - RGB Just operate power key and remote controller power button 7 MTBF 50.000 HRS with 90% Confidence leve 22”AUO:40. * Active area 1. Active area of LCD PANEL is in bezel of cabinet. Max.Surrounding Temperature : 25±5°C .Contrast.616 Xb 0.067 * Optical Test Condition .6.1 M227WDAP – 21.03 0.03 3 Contrst Ratio CR 4 Color Coordinates [CIE1931] White RED Green Blue WX Remark CR >10 Min/ Max Full white/Full black 0.313 RGB Yr 0.Surrounding Brightness Level : dark . refer to the module spec.0 mm A: Interval between left of active area and bezel B: Interval between right of active area and bezel C: Interval between top of active area and bezel D: Interval between bottom of active area and bezel C Active Area B A D Bezel Copyright LG Electronics.147 Yb 0. Check gray linearity at standard mode. All right reserved. Brightness : Outgoing condition . Inc.) No. high level saturation may be occurred.warm-up Time : 30 Min . Right/Left 70/70 85/85 - Up/Down 65/65 80/80 Luminance (cd/m2) 250 300 Variation(%) 75 700 1000 WY Typ. 6500K Xg 0.334 Vivid.*Incase of Vivid Mode.5” LCD Module (for more details. Xr -0. 1 Item Specification Viewing Angle[CR>10] 2 Luminance Min.646 +0. Only for training and service purposes -9- LGE Internal Use Only . Typ.0 mm . |C-D|<1. 0. Interval between active area and bezel |A-B|<1. 2. Chroma & Brightness 6.329 Typ.303 Full white(100IRE) Yg 0. 1920*1080 33.50 60.5 HDTV 1080P Copyright LG Electronics.94 74.500 SDTV. 720*480 15.176 HDTV 720P 8.00 13.96 59.94 74.5 60. 1920*1080 67. 8. 720*480 15.625 50. 720*480 31.5 HDTV 1080P 14. 1280*720 45.72 59.75 60. PR) No.25 HDTV 720P 50Hz 10. DVD 576I(625I) 50Hz 4. 13. 720*480 31.350 HDTV 1080P 15.514 SDTV.00 148.75 60.000 SDTV 576P 50Hz 7.7.00 60.25 50. No pattern(MSPG Pattern#2)) signal in D-sub No Item 1 22/23 inch module Min Typ Max 24000:1 30000:1 Remark PC Mode(D-sub.00 13. 1280*720 44. 1920*1080 28. 720*576 31. 1920*1080 56.00 74.250 HDTV 1080I 50Hz.10 - SDTV.2 Special feature(DFC) -DFC Working Condition : Full Black Pattern(All Black. PB.94 27. DVD 480I(525I) 3.432 59.50 50.00 74. Inc. All right reserved. SET Optical Feature 7.00 27.00 27.47 59.00 74.94 148. DVI) For Checking Black Luminance.00 74.500 .176 HDTV 1080I 11. 1920*1080 67.1 PC Mode (-Mode : Outgoing condition. wait for over 1 minute.125 50.25 50 148. Only for training and service purposes Pixel clock(MHz) 13.000 SDTV 480P 5.027 SDTV 480P 6. Specification Remark Resolution H-freq(kHz) V-freq(Hz) 1. 1280*720 37.250 HDTV 1080I 12.250 HDTV 720P 9.94 2. DVD 480I(525I) LGE Internal Use Only . Input signal : 100IRE White pattern(Pattern #4 : MSPG series)) No Item module 1 22/23 inch - Luminance (cd/m2) C/R(min) Min Typ Max Min Typ 250 300 - 700:1 71000:1 Remark RGB DFC 30000:1 7. 1920*1080 33. 720*576 15. Component Video Input (Y.73 59. 34 60.176 HDTV 720P 8 1280*720 45.50 50. RGB Input ( PC ) No.0 4 1152*864 54.250 50 148.514 SDTV.879 60.363 60.625 50.000 SDTV 576P 50Hz 7 1280*720 44.500 SDTV.5 HDTV 1080P 50Hz Copyright LG Electronics. HDMI Input (DTV) No.5 HDTV 1080P 15 1920*1080 56.250 HDTV 720P 9 1280*720 37.05 80 5 1280*960 60 60 108.250 HDTV 1080I 12 1920*1080 28.674 59.176 HDTV 1080I 11 1920*1080 33. DVD 576I(625I) 50Hz 4 7Z20*480 31.981 60. Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) 1 640*480 31.25 50.0 7 1680*1050 64.00 74.000 SDTV 480P 5 720*480 31.350 HDTV 1080P 14 1920*1080 67. Only for training and service purposes .73 59.0 8 1680*1050 65.317 40.94 148.469 59.0 6 1280*1024 63.96 59.94 13.175 2 800*600 37.500 SDTV. Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) Proposed 1 720*480 15.5 Remark 10. Inc. All right reserved.94 74.00 13.00 74.00 27.02 108.00 60.25 9 1920*1080 67.72 59.125 50.954 146.75 60.94 27.5 60 148.00 74.290 59. DVD 480I(525I) 2 720*480 15.00 27.50 60.432 59.75 60.883 119.9.00 74. DVD 480I(525I) 3 720*576 15.027 SDTV 480P 6 720*576 31.00 13.250 HDTV 1080I 50Hz 13 1920*1080 67.47 59.11 - LGE Internal Use Only .25 HDTV 720P 50Hz 10 1920*1080 33.94 74.94 25.0 65.0 3 1024*768 48.5 60 148. All right reserved.4 Stand Tilt Degree -5~15 degree Assy Tilt force 0.0 m Copyright LG Electronics.5 mm 592 446 135 mm After Packing 2. Item Product Dimension Before Packing Content Length(D) Height(H) mm 519. Unit Width(W) 20ft 40ft Indi. 1.2x 108.8 193.11. Inc. Product Only SET 4.12 - LGE Internal Use Only .1 M227WAP No.7 Kg Weight With BOX 6.2x 193.3 Kg Container Individual or Loading Palletizing Quantity 4.8~3.5 mm Back & Bottom : 1. Appearance General Refer to Standard of LG(55)G1-1020 Front: 0. 3. Mechanical specification 11. Wooden Indi. Only for training and service purposes .5kgf Swivel Degree Remark none Swivel Force *Appearance Gap spec 5. Wooden 816 600 1700 1380 Type Detachable ( Base detachable) Size(W x D x H) 271.2 400. Copyright LG Electronics. Mstar ISP Utility) 2) Auto Color Balance(ADC) . 5) Check SW Version. * Before PCB check. inch and market.ADJUSTMENT INSTRUCTION 1. Adjustment items PCB assembly adjustment items 1) Download the MSTAR main software (IC603.2 S/W program download (Using MSTAR Download program) 4.3V (5 pin) 3) SCL : 15 pin 4) SDA : 12 pin 5) Tact time : about 2min LGE Internal Use Only .00 HDCP 0 FUTT XX Tool Option 1 37000 Tool Option 2 112 Area Option 20 2. 2) Input the Option Number that was specified in the BOM. Areaoption and have to AC off/on (Plug out and in) (If missing this process. All right reserved. into the Shipping area.(Use IN-START Key on the Adjust Remocon. according to the plan which can be changed only on agreeing. SVC remote controller 7) Don’t push The “IN STOP KEY” after completing the function inspection. 4) Preset CH information 5) Factoring Option Data input. Designation 1) The adjustment is according to the order which is designated and which must be followed. you have to change the Tool option. PCB assembly adjustment method 4. Area Option Option adjustment following BOM (Tool Option 1.13 - Profile : This is for downloading the s/w to the flash memory of IC603 Equipment 1) PC 2) ISP_tool program 3) Download jig Connection structure Connection condition 1) IC name and circuit number : Flash Memory and IC603 2) Use voltage : 3. SET assembly adjustment items 1) DDC Data input. Pattern Generator (MSPG-925L or Equivalent).RGB 3) Auto Color Balance(ADC) – Component 4) Input Tool-Option/Area option. Inc.1 Input Tool-Option. input the data using number key “7” (If not changed the option. Area Option) * Required Equipments . 4) Input signal Unit: Product Specification Standard 5) Reserve after operation: Above 5 Minutes (Heat Run) Temperature : at 25°C±5°C Relative humidity : 65 ±10% Input voltage : 220V. Application This document is applied to LP92C chassis 22” LCD Monitor TV which is manufactured in Monitor Factory or is produced on the basis of this data. 2) Power Adjustment: Free Voltage 3) Magnetic Field Condition: Nil. 4.) F L W9 1 A L P L L 2 2 F H D Main V1. 3) Select “Tool Option/ Area Option” by using E/D(CH+/-) key . set can operate abnormally) * Never push the IN-STOP KEY after completing the function inspection. 2) HDCP data input 3) Adjustment of White Balance. and press the number key(0~9) consecutively ex) If the value of Tool Option1 is 7. the input menu can differ from the model spec. DDC Adjustment Jig equipment. Only for training and service purposes .) * Refer to Job Expression of each main chassis ass’y (EBTxxxxxxxx) for Option value 3. 1) Push the IN-START key in the Adjust R/C.Remote controller for adjustment * Profile : Must be changed the option value because being different with some setting value depend on module maker. Adjustment method The input methods are same as other chassis. 60Hz 6) Adjustment equipment: Color Analyzer (CA-210 or CA110). (2) Connect the download jig to D-sub jack 4. check “OK(4)” message.bin) by clicking “Read”. then a main window will be opened (5) Click “Auto(2)” tab and set as below (6) click “Run(3)”. and then load download file(XXXX.4.2. Only for training and service purposes . Inc.2 Download Steps (1) Execute ‘ISP Tool’ program in PC. (7) After downloading. (3) Click the Config button and Change speed E2PROM Device setting : over the 350Khz Copyright LG Electronics.14 - LGE Internal Use Only .1 Preliminary steps (1) Download method 1 (PCB Assy) (4) Read and write bin file Click ”(1)Read” tab. All right reserved.2. (2) Click the connect button and confirm “Dialog Box”. 3 COMPONENT input ADC 4.3.1 ADC calibration * MSPG-925 . . 0xF4 (gain)” in page “0x0E” of EEPROM the value is “0xAA’ or not.Component: series Model : 216 (720P@60Hz) .3.3. Adjustment pattern (PC ) .2 Confirmation .We confirm to address “0xF3 (offset).2 PC input ADC 4.Adjust by commanding AUTO_COLOR_ADJUST. 0xF4 (gain)” in page “0x0E” of EEPROM the value is “0xAA’ or not.15 - LGE Internal Use Only . 4. we adjust once more.Convert to PC in Input-source . 4.1 Auto RGB Gain/Offset Adjustment .3.If the value is not “xAA”. we adjust once more.2.Signal equipment displays Output Voltage: 700 m Vp-p Impress Resolution XGA (1024 x 768 @ 60Hz) Model : 60 in Pattern Generator Pattern : 29 in Pattern Generator (MSPG-925 SERIES) *Manual ADC process using Service Remocon. 4.3. 4.If the value is not “xAA”. Only for training and service purposes .3.2.3. *Manual ADC process using Service Remocon.4. All right reserved.3. execute "Auto-RGBB" by pushing " " key at "Auto-RGB".Adjust by commanding AUTO_COLOR_ADJUST. ADC Process .We can write the ADC values from “0x06~0x0B” addresses in a page “0x0E”.We can write the ADC values from “0x06~0x0B” addresses in a page “0x0E”. .We confirm to address “0xF3 (offset).Convert to Component in Input-source . Inc.1 Component Gain/Offset Adjustment . execute "Auto-RGB" by pushing " " key at "Auto-RGB". . After enter Service Mode by pushing "ADJ" key.Signal equipment displays Impress Resolution 720p MODEL : 216 in Pattern Generator(720P/60Hz 100% Color Bar Mode) PATTERN : 65 in Pattern Generator( MSPG-925 SERISE) Adjustment pattern (COMPONENT ) Copyright LG Electronics.RGB: Model : 60(1024X768@60Hz) 4.3.2 Confirmation . After enter Service Mode by pushing "ADJ" key. .3. 5) 2) A Jig for EDID Download 3) Cable : D-sub 15Pin cable. Only for training and service purposes .(S/W : EDID TESTER Ver. . Item content 16bit Data 1 Manufacturer ID GSM 1E6D 2 ProductID 22426(Analog) 579A 22428(HDMI) 579C 13 3 Year 2009 4 Version Analog : 1 5 Revision Analog : 6 Model Name M227W Digital : 1 Digital : **** 1 3 Copyright LG Electronics.2.Check whether written EDID data is correct or not .5.Connect D-sub Signal Cable to D-Sub Jack.2. HDMI cable. . HDMI EDID Data 1) M227WAP For HDMI EDID * ** *** 5.Write EDID DATA to EEPROM (24C02) by using DDC2B protocol.Adjustable Data : **: week ***: year ex) when year 2008 : input “12” **** : CHECK SUM (deferent along week. . 5.Connect HDMI Signal Cable to HDMI Jack.Write EDID DATA to EEPROM(24C02) by using DDC2B protocol. **** 5. For Analog EDID **** 5.16 - LGE Internal Use Only . EDID (The Extended Display Identification Data ) / DDC(Display Data Channel) download 5.2 Equipment 1) Adjusting PC with S/W for writing EDID Data. .3 DDC EDID Write (RGB 128Byte ) .1 Profile : To be possible for plug and play 5.4 DDC EDID Write (HDMI 256Byte) . All right reserved.5 EDID data 1) M227WAP No. Inc.5. RGB EDID Data 1) M227WAP * ** *** * Caution 1: Use the proper cables below for EDID Writing * Caution 2: Write EDID data to EEPROM by using DDC2B Protocol.Check whether written EDID data is correct or not.1.All data are HEXA .5. year) 5. Read Byte : 0.2 Connecting diagram of equipment for measuring (For Automatic Adjustment) (1) Enter the adjustment mode of DDC .Purpose : Adjust the color temperature to reduce the deviation of the module color temperature.Principle : To adjust the white balance without the saturation.PC (for communication through RGB) .305±0. Press “In-start” button and compare Tool option and Area option value with its BOM. For correct it to the model’s module from factory JIG model.285±0.000K Medium 0.003 6.Release the adjust mode after AC off/on or std-by off/on in status of finishing the Hear-run mode) . if it is correctly same then unplug the AC cable. Normal) Ë M197WAP / M227WAP/ M237WAP . you have to Set the Configuration that CMD delay.003 0.295±0. .329±0. FF) * Target Value CA-210(LCD MNT. If it is not same.85IRE) * After done all adjustments.Adjustment mode : Cool .Fix the one of R/G/B gain to C0 and decrease the others.HDCP(High-Bandwidth Digital Contents Protection) * confirmation * Before HDCP Download. 1) Connect D-sub Signal Cable to D-Sub Jack. *When doing Adjustment. Inc.5 ms.5ms) * Change the DDC -> After Write Data delay Time 20ms * Check the Communication Clock -> 45KHz. 7. Only for training and service purposes .003 11.in-program. 3) HDCP Key value is stored on Main M-STAR IC(LGE7871) which is 0x80~0xA0 addresses of 0x00~0x01 page(EEPROM MAP PAGE0~PAGE1 / START :A080).000K Warm 0. * Don’t push The “IN STOP KEY” after completing the function inspection.Enter the DDC adjustment mode at the same time heatrun mode when pushing the power on by power only key Copyright LG Electronics.Auto W/B adjustment instrument(only for Auto adjustment) . All right reserved.293±0.Color Analyzer : CA-210 . Please make circumstance as below.313±0. 00. Medium . ) Cool 0. 4) AC off/on and on HDCP button of MSPG925 and confirm whether picture is displayed or not of using MSPG925. Warm ** Required Equipment . 2) Input HDCP key with HDCP-key. Read CMD Byte : 0. -> Configuration -> Option-> I2C delay(Write Byte : 0.Adjustment of White Balance (2) Release the DDC adjustment mode .CH : 09 (LCD MNT.1 Purpose and Principle for adjustment of the color temperature .003 0.Need to transmit the aging off command to TV set after finishing the adjustment.5ms. .17 - LGE Internal Use Only .Maintain the DDC adjustment mode with same condition of Heat-run -> Maintain after AC off/on in status of Heat-run pattern display) 6.Pattern Generator (MSPG-925FS series.500K mode(Typ: 170) * Test Signal: Inner pattern (216gray. 5) HDCP Key value is different among the sets 7.Release the Adjust mode when receiving the aging off command(F3 00 00) from adjustment equipment) .Check DDC adjust mode release by exit key and release DDC adjust mode) (3) Enter the adjust mode of white balance Enter the white balance adjustment mode with aging command(F3. Normal: CH 09 ( Standard color coordinate and temperature when using the CA210 equipment) * Luminance min value is 130cd/m2 in the cool/ medium/ warm Color coordinate Mode Temp X Y 7.003 8.Set command delay time : 50ms .) .003 0.Remote controller for adjustment .. then correct it same with BOM and unplug AC cable. 2. x.3. y). Exit adjustment mode using EXIT key on R/C. y < target a) First decrease the B gain. Only for training and service purposes .In case of decreasing the x.7. CA210) should be used in the calibrated ch by CS-1000(LCD : CH9) • Operate the zero-calibration of the CA-100+ or CA-210. * Display and Sound check is executed by Remote controller 9.Surrounding Temperature : 20 % ~ 80 % . decreasing the G: fix R 3. Mediun. Adjustment of White Balance for Manual Adjustment • Color analyzer(CA110. Medium.Surrounding Temperature : 25±5 °C 8. b) Decrease the one of the others. 1. so make y a little more than the target. decreasing the R: fix G . and adjust other two lower than C0. y < target a) First decrease B. All right reserved. 4) Adjust all modes(Cool. 3) Adjust R/G/B Gain using / (VOL + / -) key on R/C. so make x a little more than the target. y > target a) First decrease B.In case of decreasing the y . [CASE] First adjust the coordinate much away from the target value(x. then stick sensor to the module when adjusting. 5) When adjustment is completed.18 - LGE Internal Use Only .1 Check display and sound • Check Input and Signal items (cf. work instructions) 1) TV 2) AV (SCART1/ SCART2/ CVBS/ S-Video) 3) COMPONENT (1080i) 4) RGB ( PC: 1920 x 1080 @ 60Hz) 5) DVI ( PC: 1920 x 1080 @ 60Hz) 6) HDMI 7) PC Audio In Copyright LG Electronics. • For manual adjustment. Warm): Fix the one of R/G/B gain and change the others. Inc. y > target a) Decrease the R. Preset CH write condition 1) AC on time on only one after assembled automatically 2) CH recover on SVC OSD manually 1) Push the ADJ key two times (Entering White Blalance mode) 2) Stick sensor to center of the screen and select each items (Red/Green/Blue Gain and Offset) using / (CH + / -) key on R/C. x < target . . x. G. b) Adjust x value by decreasing the R 4. Function Check 8. Warm One of R Gain/G Gain/ B Gain should be kept on 0xC0. (Fix the one of R/G/B and change the others). it is also possible by the following sequence. (when R/G/B Gain are all C0. b) Adjust x value by decreasing the G ** Caution ** Color Temperature: COOL. x > target . it is the FULL Dynamic Range of of Module) * W/B condition . TV/CATV doesn’ t display Copyright LG Electronics. Inc. Only for training and service purposes .19 - LGE Internal Use Only .TROUBLESHOOTING 1. All right reserved. All right reserved.2.20 - LGE Internal Use Only . Component doesn’ t display Copyright LG Electronics. Only for training and service purposes . AV. Inc. RGB-PC doesn’ t display Copyright LG Electronics. Only for training and service purposes . Inc.21 - LGE Internal Use Only .3. All right reserved. 4. HDMI doesn’ t display Copyright LG Electronics. Only for training and service purposes . All right reserved.22 - LGE Internal Use Only . Inc. All right reserved. Only for training and service purposes . Inc.BLOCK DIAGRAM Copyright LG Electronics.23 - LGE Internal Use Only . Only for training and service purposes . Shock. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION. All right reserved. These parts are identified by in the Schematic Diagram and EXPLODED VIEW. Fire. Inc. Copyright LG Electronics.EXPLODED VIEW IMPORTANT SAFETY NOTICE 121 300 120 510 200 500 530 540 A2 LV1 800 810 400 900 Many electrical and mechanical parts in this chassis have special safety-related characteristics.24 - LGE Internal Use Only . Do not modify the original design without permission of manufacturer. or other Hazards. pdffactory. Inc.LGE comfidencial LG E Co nf id en tia l PDF created with pdfFactory Pro trial version www. All right reserved.com Copyright ⓒ 2010 LG Electronics. Only for training and service purposes LGE Internal Use Only . pdffactory. Only for training and service purposes LGE Internal Use Only .com Copyright ⓒ 2010 LG Electronics. All right reserved. Inc.LGE comfidencial LG E Co nf id en tia l PDF created with pdfFactory Pro trial version www. All right reserved. Only for training and service purposes LGE Internal Use Only . Inc.LGE comfidencial LG E Co nf id en tia l PDF created with pdfFactory Pro trial version www.com Copyright ⓒ 2010 LG Electronics.pdffactory. pdffactory. All right reserved. Only for training and service purposes LGE Internal Use Only . Inc.LGE comfidencial LG E Co nf id en tia l PDF created with pdfFactory Pro trial version www.com Copyright ⓒ 2010 LG Electronics. com Copyright ⓒ 2010 LG Electronics. Inc. Only for training and service purposes LGE Internal Use Only . All right reserved.LGE comfidencial LG E Co nf id en tia l PDF created with pdfFactory Pro trial version www.pdffactory. All right reserved.com Copyright ⓒ 2010 LG Electronics. Only for training and service purposes LGE Internal Use Only .pdffactory.LGE comfidencial LG E Co nf id en tia l PDF created with pdfFactory Pro trial version www. Inc. pdffactory.LGE comfidencial LG E Co nf id en tia l PDF created with pdfFactory Pro trial version www. Only for training and service purposes LGE Internal Use Only . 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