LG Flatron M228WA Service Manual Download

Page: 1 / 52

COLOR MONITOR

SERVICE MANUAL

Website:http://biz.LGservice.com

E-mail:http://www.LGEservice.com/techsup.html

CAUTION

BEFORE SERVICING THE UNIT,
READ THE

SAFETY PRECAUTIONS

IN THIS MANUAL.

CHASSIS NO. : LP69G

MODEL: M228WA (M228WA-BZH.A**QLP)

*( ) **Same model for Service

Summary of Contents for Flatron M228WA

Page 1: ...NUAL Website http biz LGservice com E mail http www LGEservice com techsup html CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO LP69G MODEL M228WA M228WA BZH A QLP Same model for Service ...

Page 2: ...nutes prior to the adjustment 3 Test method 3 1 Performance LGE test method followed 3 2 Demanded other specification Safety CE IEC Specification EMC CE IEC SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 4 1 General Specification 4 1 1 TV 4 General Specification TV No Item Specification Remark 1 Video input applicable system PAL D K B G I SECAM L ...

Page 3: ...rizontal 28 83kHz Vertical 56 75 Hz 3 Resolution Analog Max 1680 x 1050 60Hz Recommend 1680 x 1050 60Hz Digital Max 1680 x 1050 60Hz Recommend 1680 x 1050 60Hz 4 Input Voltage Voltage 100 240 Vac 50 or 60Hz 5 Inrush Current Cold Start 50 A Hot 120 A 6 Operating Condition Sync H V Video LED Wattage Power S W On On mode On On Active Blue 60W Max On On Active Blue 50W Typ Sleep mode Off On Off Amber ...

Page 4: ...hite Luminance Uniformity 1 3 1 5 3 Contrast Ratio CR RGB PC At DFC Mode AV1 AV2 TV 450 700 Typ 3000 1 Min 2400 1 Component 4 CIE Color Coordinates WHITE Wx 0 313 Wy 0 329 In RGB PC input RED Rx 0 644 Ry 0 333 PSM Dynamic GREEN Gx 0 286 CSM 6500K Gy 0 605 White BLUE Bx 0 152 100 IRE By 0 076 WHITE Wx 0 285 Wy 0 293 In AV1 AV2 Component TV input RED Rx 0 640 Ry 0 334 PSM Dynamic GREEN Gx 0 286 CSM ...

Page 5: ...80i 12 1920 1080 28 125 50 00 74 250 1080i 4 4 Model Specification No Item Specification Remark 1 Market EU 2 Broadcasting system PAL BG I DK SECAM L L SECAM BG DK 3 RF Input Channel VHF E2 E12 UHF E21 E69 PAL CATV S1 S20 HYPER S21 S41 L L B C D FRANCE 4 SCART Input 1EA PAL SECAM 5 CVBS Input 1EA PAL SECAM NTSC 4 System Rear PAL50 SECAM NTSC PAL60 6 S Video Input 1EA PAL SECAM NTSC 4 System Rear P...

Page 6: ...2 720 480 31 50 60 00 27 027 480p 3 720 576 31 25 50 00 27 000 576p 4 1280 720 37 5 50 00 74 250 720p 5 1280 720 44 96 59 94 74 176 720p 6 1280 720 45 00 60 00 74 250 720p 7 1920 1080 33 72 59 94 74 176 1080i 8 1920 1080 33 75 60 00 74 250 1080i 9 1920 1080 28 125 50 00 74 250 1080i 7 RGB input DTV 8 DVI input PC No Resolution H freq kHz V freq Hz Pixel clock MHz 1 720 400 31 468 70 08 28 321 2 64...

Page 7: ... 94 27 000 480p 2 720 480 31 50 60 00 27 027 480p 3 720 576 31 25 50 00 27 000 576p 4 1280 720 37 5 50 00 74 250 720p 5 1280 720 44 96 59 94 74 176 720p 6 1280 720 45 00 60 00 74 250 720p 7 1920 1080 33 72 59 94 74 176 1080i 8 1920 1080 33 75 60 00 74 250 1080i 9 1920 1080 28 125 50 00 74 250 1080i ...

Page 8: ...e module from the ESD as it may damage the electronic circuit C MOS 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 Avoid contact with water as it may a short circuit within the module If the surface of panel become dirty please wipe i...

Page 9: ...st receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last 9 Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver Electrostatically Sensitive ES Devices Some semiconductor solid state devices ...

Page 10: ...tip as the solder melts 2 Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coati...

Page 11: ...onnection 4 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 Solder the overlapped area and clip off any excess jumper wire At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on t...

Page 12: ...ush the cable management like above fig Downward Disassembly the Cable management with pulling it upward 3 Disassembly Cable Holder Disassembly Stand base Remove base body Like a picture Push 2 letches Like a picture Push the button Hold the stand base 1 4 2 5 3 6 ...

Page 13: ... 13 7 9 8 10 Pull base body to separate from set during pressing 2 letches Remove the screws 11 Pull the connector Disassembly back cover 1 Remove the screws 2 Disassembly Hinge Cover ...

Page 14: ...4Mb Serial Flash Memory MX25L4005A Data OCMD 0 7 OCMA 0 19 Analog Signal R G B H V TMDS Signal COMP PC Audio COMP Audio CVBS Audio EEPROM D SUB EEPROM Tuner TAFT W003D CVBS SIF L R LVDS Signal L R Scaler Video Decorder LGE9789AD LF R G B CVBS Audio SCART CVBS Audio L R L R CS4351 DAC INPUT MENU OK VOL PR POWER IR EAGLE EYE BLOCK DIAGRAM ...

Page 15: ...On decoding We can control signal like Contrast Brightness Sharpness Color tint signals including Adaptive Comb Filter 2 Audio Signal This block analyzes audio input signal through A V Jack and PC audio and Tuner IF The analyzed signals transmitted to audio amplifier YDA138 On decoding We can control signal like Bass treble 4 Flash Memory MX25L4005A This is composed of MX25L4005A This store the so...

Page 16: ...a bridge rectifier and a bulk capacitor 3 Energy Transfer This part function is for transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter This part function is to make a pulse width modulation control and to provide the driver signal to power switch to adjust the duty cycle during different AC input and output loading condition to achieve the dcoutput s...

Page 17: ... is available to LCD Monitor only 1 Port Setup a Copy UserPort sys file to c WINNT system32 drivers folder b Run Userport exe c Remove all default number d Add 300 3FF e Click Start button f Click Exit button 2 EDID Read Write 1 Run WinEDID exe 2 Edit Week of Manufacture Year of Manufacture Serial Number a Input User Info Data b Click Update button c Click Write button ...

Page 18: ...ad file XXXX bin by clicking Read 5 Click Auto tab and set as below 6 click Run 7 After downloading check OK message 3 2 ADC Process If a scaler IC changed for PCB repairing it is need to do ADC process at all times 1 PC input ADC 1 Auto RGB Gain Offset Adjustment Convert to PC in Input source Signal equipment displays Output Voltage 700 mVp p Impress Resolution XGA 1024 x 768 60Hz Model 60 in Pat...

Page 19: ...put to AV2 2 Input signal CVBS PAL 50Hz Full white 216 255 gray level 85 IRE Model 202 Pattern 78 at MSPG925L 3 Set PSM Dynamic CSM Cool 4 Confirm whether x 0 285 0 03 y 0 293 0 03 or not 4 4 Confirm color coordinate of component 1 Set Input to COMPONENT 2 Input signal 480P Full white 216 255 gray level 85 IRE Model 212 Pattern 78 at MSPG925L 3 Set PSM Dynamic CSM Cool 4 Confirm whether x 0 285 0 ...

Page 20: ...ec 1 M198WA EDID DATA 1 ANALOG DATA 128Byte 2 DIGITAL DATA 256Byte 2 M208WA EDID DATA 1 ANALOG DATA 128Byte 2 DIGITAL DATA 256Byte 3 M228WA EDID DATA 1 ANALOG DATA 128Byte 2 DIGITAL DATA 256Byte 4 9 HDCP SETTING High Bandwidth Digital Contents Protection 1 Connect D sub Signal Cable to D Sub Jack 2 Input HDCP key with HDCP key in program 3 HDCP Key value is stored on EEPROM AT24C64 which is E00 F2...

Page 21: ...rbo Volume Off 1 Turbo Volume On 6 MONO 0 Option3 2 1 KEY TYPE 2 2 8Key Option 4 3 1 Default Lang Language 3 2 Lang 0 Chesky Dansk Deutsch English Español Français Italiano Magyar Nederlands Norsk Polski Português Romaneste Suomi Svenska 3 T Lang 0 AUSTRIA BULGARIA CROATIA CZECH DENMARK ESTONIA FINLAND FRANCE GERMANY GREECE HUNGARY ITALY LATVIA NETHERLANDS NORWAY POLAND PORTUGAL RUMANIA RUSSIA SER...

Page 22: ... EEPROM ALL INIT E4 00 00 EEPROM All clear EEPROM Read E7 00 00 EEPROM Read EEPROM Write E8 00 data EEPROM Write by some values COLOR SAVE R G B cutoff Drive EB 00 00 Color Save Contrast Bright H POSITION 20 00 00 100 They have different range V POSITION 30 00 00 100 each mode FOS Adjustment CLOCK 90 00 00 100 PHASE 92 00 00 100 R DRIVE 16 00 00 FF Drive adjustment G DRIVE 18 00 00 FF B DRIVE 1A 0...

Page 23: ...7K 74LS06 74LS06 OFF ON OFF ON 11 Video Signal Generator Tool Option 8066 Area Option 04 OPTION 1 6 RAM Delay OPTION 2 2 OPTION 3 2 OPTION 4 3 OPTION 5 9 ETC BLUEBIRD3 LP69G Version 2 01 061227 UTT M228WA WSXGA CMO 22W 0 Power Off History Description of operation Tool Option Adjust Tool Option Area Option Adjust Area Option Option 1 Adjust Tuner Service Option Option 2 Adjust Sound Service Option ...

Page 24: ...ge defect part of IC100 Q307 Change IC1100 IC1101 Change IC1102 IC1103 Check Output of IC1102 IC1103 Check short of IC100 TU600 IC500 Re soldering of Change defect part of IC100 TU600 IC500 Change IC1104 IC1105 Change LED Assy Check Output of IC1104 IC1105 Check LED Assy Check P304 Connector Check short of IC100 IC400 Re soldering of Change defect part of IC100 IC400 Fail Fail Fail Fail Fail Fail ...

Page 25: ...Link Cable or Module Change Panel Link Cable or Module Check Inverter Connector or inverter Change Inverter Connector or Inverter Change IC100 Check Output of R305 Check the LVDS Output of IC100 Check Input source Cable and Jack Change Module Change R305 Pass Pass Pass Pass Pass Fail Fail Fail Fail ...

Page 26: ...ut of R708 R709 Fail Check the J701 Fail Fail Re soldering or change the defect part Check the X100 Check the input output of R128 R131 R136 Check the input output of IC100 Check input source cable and jack Re soldering or Change the defect part Pass Pass Pass Pass X100 ...

Page 27: ...he input output of R901 Fail Check the J900 Fail Pass Re soldering or change the defect part Check the X100 Check the input output of R125 Check the input output of IC100 Check input source cable and jack Re soldering or Change the defect part Pass Pass Fail X100 ...

Page 28: ...t in Video S Video Signal 7 No Rasteron TV RF Signal Check input source cable and jack Repeat A B process Fail Check short of IC100 Q307 Fail Fail Fail Pass Check 5V of TU600 Re Soldering or change the defect part Check the input output of L804 L1002 L1003 L1004 Change L804 L1002 L1003 L1004 Check Output of IC1104 IC1105 Re soldering of Change defect part Check the X100 Pass Pass Pass Pass Pass X1...

Page 29: ...he source input Check input Output ofIC100 Pass Re soldering of Change the defect part Check the X100 Check the input output of IC500 Re soldering of Change the defect part Check the Speaker Check the Speaker wire Change Speaker Pass Pass Fail Fail Fail X100 ...

Page 30: ...EXPLODED VIEW 30 300 200 120 510 320 330 500 310 520 420 430 530 410 400 940 900 950 910 930 920 ...

Page 31: ...BACK_COVER ASS Y 22 _PAL CKD ADV31008032 Frame Assembly M228WA ETC M228W METAL FRAME ASSY BB3 _ PAL CKD MEY35721301 Knob MOLD ABS HF 350 SUB 7KEY M198W M198W TACT KNOB BK MGJ35722502 Plate Shield PRESS SBHG 0 6T FRAME EGI M8W LAMP WIRE SHIELD 0 3T CKD EBR35410101 PCB Assembly Sub LED P SW T T LP69G M198WA M208WA M228WA AEUGLPX BRAND 6871TPT318G PCB Assembly Power PLLM M602B POWER T T CMO L225W 22 ...

Page 32: ...6V 8 0603B104K500CT 100nF 10 50V X7R 0603B104K500CT 100nF 10 50V X7R C1129 C1130 C1131 C1133 C114 C1148 C1149 C1150 C1150 C1151 C116 C117 C118 C119 C121 C122 C123 C124 C125 C126 C127 C128 C129 C130 C131 C132 C133 C134 C135 C136 C137 C138 C139 C140 C141 C142 C143 C144 C145 C146 C147 C148 C149 C150 C151 C152 C153 C154 C155 0CE227WF6DC 0CK104CK56A 0CK225DD66A 0CK104CK56A 0CK104CK56A 0CE475WJ6DC 0CK10...

Page 33: ...00pF 5 50V C0G C1608C0G1H101JT 100pF 5 50V C0G C1608C0G1H101JT 100pF 5 50V C0G C1608C0G1H470JT 47pF 5 50V C0G C307 C308 C309 C310 C311 C312 C400 C4000 C4001 C401 C402 C403 C404 C405 C406 C407 C408 C409 C500 C501 C502 C502 C503 C503 C504 C505 C506 C507 C508 C509 C510 C511 C512 C513 C514 C515 C516 C517 C518 C519 C520 C521 C522 C522 C523 C523 C524 C525 C526 C527 C528 C529 C530 C531 0CC101CK41A 0CC101...

Page 34: ...220JT 22pF 5 50V C0G MVK4 0TP16VC10M 10uF 20 16V 16M MVK4 0TP16VC10M 10uF 20 16V 16M 0603B104K500CT 100nF 10 50V X7R MVK5 0TP25VC10M 10uF 20 25V 25M C1608C0G1H331JT 330pF 5 50V C0G MVK4 0TP16VC10M 10uF 20 16V 16M 0603B104K500CT 100nF 10 50V X7R C823 C824 C829 C830 C831 C832 C833 C834 C835 C836 C837 C838 C900 C901 ZD1000 L1002 L1003 L1004 L1103 L1104 L500 L501 L503 L504 C1 C2 C3 C4 J701 P1101 P1104...

Page 35: ...O6V 40OH BZT52C5V6S F 5 6V 5 2TO6V 40OH BZT52C5V6S F 5 6V 5 2TO6V 40OH BZT52C5V6S F 5 6V 5 2TO6V 40OH BZT52C5V6S F 5 6V 5 2TO6V 40OH BZT52C5V6S F 5 6V 5 2TO6V 40OH BZT52C5V6S F 5 6V 5 2TO6V 40OH BZT52C5V6S F 5 6V 5 2TO6V 40OH ZD814 ZD815 ZD900 ZD901 ZD902 ZD903 ZD904 ZD905 ZD906 ZD907 L1000 L1001 L1006 L1007 L1113 L1114 L1115 L1116 L1117 L505 L506 L507 L508 L509 L510 L511 L512 L801 L802 L803 L804 ...

Page 36: ... R1115 R1116 R1117 R1118 R112 R1122 R114 R1140 R1141 R1146 R1147 R1147 R1147 R1149 R115 R1150 R1153 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R148 0RJ1002D677 0RJ0472D677 0RJ1002D677 0RJ6801D477 0RJ2202D477 0RJ1002D677 0RJ1002D677 0RJ6801D477 0RJ1053D477 0RJ1002D677 0RJ1002D677 0RJ0472D677 0RJ100...

Page 37: ... 16 MCR03EZPJ332 3 3KOHM 5 1 10W 16 MCR03EZPJ103 10KOHM 5 1 10W 160 MCR03EZPJ101 100OHM 5 1 10W 160 R242 R243 R245 R249 R250 R252 R253 R254 R256 R259 R260 R262 R263 R264 R267 R300 R302 R303 R304 R305 R310 R311 R312 R313 R314 R315 R316 R319 R320 R4000 R4001 R4002 R4003 R4004 R4005 R402 R403 R404 R405 R406 R407 R408 R409 R500 R501 R502 R504 R505 R508 R509 R510 R511 R513 R514 0RJ1001D677 0RJ3301D677 ...

Page 38: ...ZPJ472 4 7KOHM 5 1 10W 16 MCR03EZPJ472 4 7KOHM 5 1 10W 16 MCR03EZPJ472 4 7KOHM 5 1 10W 16 MCR03EZPJ472 4 7KOHM 5 1 10W 16 MCR03EZPJ472 4 7KOHM 5 1 10W 16 MCR03EZPJ474 470KOHM 5 1 10W 16 MCR03EZPJ474 470KOHM 5 1 10W 16 R803 R804 R805 R806 R807 R808 R809 R810 R811 R812 R813 R814 R814 R815 R815 R816 R817 R818 R819 R820 R821 R822 R823 R825 R827 R831 R833 R834 R836 R900 R901 R902 R903 R904 R905 R906 R9...

Page 39: ...50V 150 2SC3875S ALY NPN 5V 60V 50V 150 2SC3875S ALY NPN 5V 60V 50V 150 2SA1504S ASY PNP 5V 50V 50V 2SA1504S ASY PNP 5V 50V 50V 2SA1504S ASY PNP 5V 50V 50V Box BOX SW 586 356 486 1 COLOR C SKD Box LB500J PCB BRAND 542 397 445 Box LB500J PCB BRAND 542 397 445 Box BOX SW 0 0 0 1 COLOR PC 63A 29 Box BOX DW 526 108 405 2 COLOR M228W Receiver Module TSOP34838SO1 2 7TO5 5V LED DIP GP34052ME P507 ZSY 50 ...

Page 40: ... 40 SCHEMATIC DIAGRAM 1 MSTAR ...

Page 41: ... 41 2 PANEL CONNECTOR ...

Page 42: ... 42 3 DDR ...

Page 43: ... 43 4 AMP ...

Page 44: ... 44 5 TUNER ...

Page 45: ... 45 6 DSUB DVI ...

Page 46: ... 46 7 SCART DAC ...

Page 47: ... 47 8 JACK ...

Page 48: ... 48 9 POWER ...

Page 49: ... 49 PRINTED CIRCUIT BOARD MAIN TOP ...

Page 50: ... 50 MAIN BOTTOM ...

Page 51: ... 51 CONTROL BOTTOM ...

Page 52: ...Jan 2007 P NO MFL36713674 Printed in Korea ...

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