LG Flatron W2234S Service Manual Download Page 34 | Manualshive

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Summary of Contents for Flatron W2234S

Page 1: ...echsup html COLOR MONITOR SERVICE MANUAL CHASSIS NO MODEL W2234S W2234S SNI W2234S BNI Axx QP xx means sales region and module type AxxIQP INL 5ms AxxVQP AUO 5ms CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL To apply the MSTAR Chip 1 ...

Page 2: ...ber Power Off 1W Off Burn in Blue 2 2 Luminance a For InnoLux MT220WW01 V0 panel 300cd m 2 Typ 220cd m 2 Min 6500k 170 cd m 2 Min 9300k b For AUO M220EW01 V0 panel 300cd m 2 Typ 220cd m 2 Min 6500k 170 cd m 2 Min 9300k 2 3 Contrast Ratio a For InnoLux MT220WW01 V0 1000 1 Typical 700 1 minimum b For AUO M220EW01 V0 1000 1 Typical 800 1 minimum 3 SIGNAL Refer to the Timing Chart 3 1 Sync Signal Type...

Page 3: ...rcuit must disconnect the AC adapter because high voltage appears at inverter circuit about 650Vrms Handle with care wires or connectors of the inverter circuit If the wires are pressed cause short and may burn or take fire Be careful while tilting and rotating the monitor to avoid pinching hand s Leakage Current Hot Check Circuit AC Volt meter Good Earth Ground such as WATER PIPE Protect the modu...

Page 4: ...t 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 c...

Page 5: ...ip 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 coatin...

Page 6: ...nnection 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 th...

Page 7: ...H Pixels 46 875 1056 800 16 80 160 5 V Lines 49 5 75 0 625 600 1 3 21 800 x 600 H Pixels 48 363 1344 1024 24 136 160 6 V Lines 65 0 60 0 806 768 3 6 29 1024 x 768 H Pixels 60 123 1312 1024 16 96 176 7 V Lines 78 75 75 029 800 768 1 3 28 1024 x 768 H Pixels 67 5 1600 1152 64 128 256 8 V Lines 108 0 75 900 864 1 3 32 1152 x 864 H Pixels 63 981 1688 1280 48 112 248 9 V Lines 108 0 60 02 1066 1024 1 3...

Page 8: ...ISASSEMBLY 8 1 4 1 Lay the front on the side of soft cushion 2 Remove the base Remove the back cover 2 5 Unscrew the screws as showing 3 Unstick the foil Pull out the LVDS cable 6 Remove the front cover ...

Page 9: ...DISASSEMBLY 9 7 10 Unstick the foil with the lamp wire 1 Remove the keypad 8 11 Unstick the foil with the lamp wire 2 Remove the chassis 9 Pull out the lamp wire ...

Page 10: ...ts 8 bit R G B signal to transmitter 2 Power Part This part consists of the one 3 3V and one 1 8V regulators to convert power which is provided 5V in Power board 16V is provided for inverter 16V is provided for LCD panel and 5V for micom Also 5V is converted 3 3V and 1 8V by regulator Converted power is provided for IC in the main board The inverter converts from DC16V to AC 700Vrms and operates b...

Page 11: ...nergy 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 achive the dc output stablize and also the over power protection is also monitor by this part 5 Photo Coupler isolation This par...

Page 12: ...c Writing data Mars W2234 2 Hardware a PC winXP win2000 or win98 1 pc b Writing tools Including EDID writing card connecting cable etc 3 EDID Writing Connection 12 Figure 1 Figure 2 Figure 3 4 EDID Writing SOP a Select File submenu select Auto Write ...

Page 13: ...b Select Model of main menu Password 1234 c Select written model W2234S d Input product serial number The SN is 12 numbers in S N Column then the program auto writing start 13 ...

Page 14: ...C power On time f DFC ON ÅÆOFF Yes or No to apply the operation of DFC function g NVRAM INIT EEPROM initialize 24C04 h R G B 9300K Allows you to set the R G B 9300K value manually i R G B 6500K Allows you to set the R G B 6500K value manually j R G B Offset Allows you to set the R G B Offset value manually Analog Only k R G B Gain Allows you to set the R G B Gain value manually Analog Only l RS232...

Page 15: ...eck power BD 5V output NG NG Check 5V 16V output if short or not NG OK Check primary rectifier voltage C804 NG OK Check I F BD Check D805 D804 C 820 C817 Check D801 RT801 F801 Check pin7 of IC802 OK Check IC801 IC803 NG Check Q804 R815 R805 T801 D803 IC802 15 ...

Page 16: ...s there 16V on pin9 of IC501 NG OK Check pin8 of IC501 is there 3V NG OK Check Pin11 Pin14 of IC501 it have output or not NG OK Check power supply Check I F BD R510 R511 C507 CheckIC501 R50 4 C503 C511 Check U501 U502 Q506 Q501 Q505 T50 1 T502 16 ...

Page 17: ...3 DC output voltage is unstable Output Voltage Unstable Check IC803 R Pin NG OK Check IC801 R832 C821 R821 NG OK Check IC801 T801 Check R825 R822 R823 R824 Replace NG component 17 ...

Page 18: ...anel NG NG Check Pin7 of IC it have signal or not NG Check I F BD R509 C506 OK Check Pin2 of IC501 is it 1 3V when backlight turn on NG Check D505 D506 D507 D508 OK Check Pin1 of IC501 is it 1 2V when backlight turn on NG Check C519 C520C521 C5 22 C523 C524 C525 C526 D501 D502 OK Check Q502 Q503 Q504 D 503 D504 D510 D5 11 IC501 ...

Page 19: ... U105 Check Crystal Pin1 Pin2 Of U105 Check CCFL Enable pin55 of U105 MCU Fail Check D101 Check X101 C157 C158 R137 R138 Inverter Fail OK NG OK Check Reset pin54 Of U105 Check pin5 of CN101 Check R103 Q103 R102 R105 R106 Check C164 R153 NG NG OK OK Check pin30 and 53 Of U105 And U101 Check U102 NG NG NG OK OK OK NG 19 ...

Page 20: ...VLCD Is 5V Check Panel Enable Of U105 pin28 is High Check R109 R110 R107 Q101 Q104 END Workmanship LVDS Cable NG Panel Fail Check LVDS Signals Check the HW Reset Of U105 pin54 Check the pins Of U105 6 White Screen NG NG NG NG NG NG OK OK OK OK OK Check C164 R153 ...

Page 21: ...een LVDS Cable Reinsert OK Workmanship NG Change LVDS Cable NG Check crystal Pin1 Pin2 of U105 OK LVDS Cable NG OK Check X01 C157 C158 OK Check Pin5 Pin6 of CN101 NG Check R102 R103 R105 R106 Q103 OK Check Pin28 Pin56 of U105 ...

Page 22: ...WIRING DIAGRAM 22 ...

Page 23: ...Exploded View and Parts List 23 1 2 3 4 5 7 8 6 9 10 11 12 13 14 15 16 scale 1 2 ...

Page 24: ...iland Vietnam Russia U A E 1 20 6410TSW003A 453070800740R PWRCORD 10A 250V BLK 1850mm SAA H05W F 3 Australia 1 20 7 6410TTW001A 453070800750R PWRCORD 7A 125V BLK 1850mm CNS VCTF 3Gx0 Taiwan 1 20 ACQ66372301 714050015900R ASSY BACK COVER LE22E2 For INL 1 20 8 ACQ66372302 714050015901R ASSY BACK COVER AUO LE22E2 For AUO 1 20 9 AAN66372101 714020014000R ASSY BASE LE22E2 1 20 10 MCK56884501 5012602081...

Page 25: ...PZ5234BPT SOD323 Chenmko Ro 0 PC 270 411101562950R ZENER 6 2V BZT52C6V2S SOD323 Diodes RoHS 0 PC 280 U101 412000599490R IC MT11173 3A SOT223 Matrix RoHS 1 PC 290 412000372830R IC AS1117L 3 3TR LF SOT223 A1S EMI RoHS 0 PC 300 412000372070R IC AZ1117H 3 3 SOT 223 AAC RoHS 0 PC 310 U102 412000598490R IC MT11171 8A SOT223 Matrix RoHS 1 PC 320 412000330830R IC AS1117L 1 8 TR LF SOT223 A1 SEMI RoHS 0 PC...

Page 26: ...N103 444099030030R CON SMD 1 0mm 30PIN RoHS AL2309 A0G1Z 1 PC 640 506440003800R LABEL BLANK YELLOW 10x4mm 1 PC 650 506140005700R LABEL BARCODE BLANK 33x7mm ROHS FOR PCB 1 PC 660 D101 411090005451R SCHTKY SSM24APT 40V 2A SMA S CHENMKO RoH 1 PC 670 411090005311R SCHTKY B240A 40V 2A SMA DIODES RoHS 0 PC 680 411090005460R SCHTKY SM240A LF 40V 2A DO 214AC SECOS 0 PC 690 U103 412000435481R IC AT24C02BN ...

Page 27: ...3906 PNP SOT 23 INFIN EON RoHS 0 PC 220 D102 D103 D104 D105 411020026210R DIO BAV99 350mW 70V SOT 23 PHI RoHS 4 PC 230 411020026090R DIO BAV99 350mW 75V SOT 23 PEC RoHS 0 PC 240 411020026020R DIO BAV99 LF 350mW 70V SOT 23 FEC RoHS 0 PC 250 411020026390R DIO BAV99 SOT 23 INFINEON RoHS 0 PC 260 ZD103 ZD104 ZD105 ZD106 411100962920R ZENER 6 2V BZT52 B6V2S SOD323 PEC RoHS 4 PC 270 411101762950R ZENER ...

Page 28: ...419301000510R C SMD 0402 NPO 10PF 50V J RoHS 2 PC 580 C130 C129 419303300510R C SMD 0402 NPO 33PF 50V J RoHS 2 PC 590 C143 419314734010R C SMD 0402 X7R 0 047uF 16V K RoHS 1 PC 600 EP101 EP102 432002500020R ESD SMD 0603 5P 35V INPAQ OSC 03 09 03 2 PC 610 432009500080R VARIST ESD SMD 0603 5P 62V LTR LVSL161 0 PC 620 FB101 432002312144R BEAD CORE SMD 0603 120Ω 300mA SBK160808 1 PC 630 FB104 FB103 FB1...

Page 29: ...E 1 PC 150 L801 425000010670R COIL CHK 20mH UU16 CHK 067 RoH S UF2324S 1 PC 160 L802 L803 L804 425000010530R COIL CHK 5uH 7 8X10 CHK 053 0 181085R0L 3 PC 170 T501 T502 426000091100H XFMR SW DIP EEL19 P4 335mH SPW 110 2 PC 180 T801 426000091000R XFMR SW DIP ER28 PC40 650uH SPW 100 RoHS 1 PC 190 CN501 CN502 CN503 CN504 430637020030R WFR 2P P 3 5mm 90 W LOCK RoHS 4 PC 200 CN801 430300600170R HRN ASS ...

Page 30: ...HS 1 PC 590 410050105270R XSTR AOD442 N Ch TO 252 AOS ROHS 0 PC 600 U502 410060019290R XSTR AP9575GH P CH TO252 APEC ROHS 1 PC 610 410060020270R XSTR AOD407 P Ch TO 252 AOS ROHS 0 PC 620 D501 D502 411020047210R DIO BAV70 85V SOT23 PHILIPS RoHS 2 PC 630 411020047020R DIO BAV70 LF 70V SOT 23 FEC ROHS 0 PC 640 411020047090R DIO BAV70 70V SOT 23 PEC ROHS 0 PC 650 D503 D504 411020068020R DIO BAW56 70V ...

Page 31: ... 419311020070R C SMD 0805 X7R 1000PF 50V K RoHS 1 PC 1050 C507 419311030060R C SMD 0603 X7R 0 01uF 50V K RoHS 1 PC 1060 C517 C518 C827 C826 419311040060R C SMD 0603 X7R 0 1uF 50V K RoHS 4 PC 1070 C810 C510 419311040070R C SMD 0805 X7R 0 1uF 50V K RoHS REV A 2 PC 1080 C508 419311054070R C SMD 0805 X7R 1uF 16V K RoHS REV A 1 PC 1090 C504 419341064650R C SMD 1206 Y5V 10uF 16V Z RoHS 1 PC 1100 C506 41...

Page 32: ...802 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 12 5MM 67 98 MM 1450 J516 J518 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 15MM 50 32 MM 1460 J505 J521 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 17 5MM 55 32 MM 1470 J501 J506 J508 J513 J803 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 20MM 150 8 MM 1480 700000001000R ASSY PCB RIVENT LE22E2 X10 ROHS 1 PC 1490 ZD802 411020050090R DIO P6KE150A DO 15 AT P...

Page 33: ...SCHEMATIC DIAGRAM 1 DC to DC 33 ...

Page 34: ...2 Input 34 ...

Page 35: ...3 Scaler_TSUMU18ER 35 ...

Page 36: ...4 Keypad 36 ...

Page 37: ...5 Inverter 37 ...

Page 38: ...6 Power 38 ...

Page 39: ... 2008 P NO Printed in Korea 39 ...

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