LG Flatron E1908s Скачать руководство пользователя страница 10 | Manualshive

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Copyright © 2010 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only
Only for training and service purposes

DISASSEMBLY-Stand

#1

Press the release button.

#2

Consequently, pull the base directly.

#3

The stand.

#4

Directly remove the stand cover by hand.

#5

Unscrew the 3 screws to remove the hinge and the
stand.

#6

Stand cover, stand and hinge.

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Содержание Flatron E1908s

Страница 1: ...th Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com COLOR MONITOR SERVICE MANUAL MODEL E1908s E1908s PNT A DAS for LCM190A1L0G Sales Market CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL To apply the Realtek Chip Internal Use Only ...

Страница 2: ...TICS 2 1 Viewing Angle by Contrast Ratio 10 θx θx 75 Min 75 Typ θY θY 70 Min 80 Typ 2 2 Center Luminance of White 200Cd m2 2 3 Contrast Ratio 700 min 1000 Typ 3 SIGNAL Refer to the Timing Chart 3 1 Sync Signal Type Separate Sync 3 2 Video Input Signal 1 Type R G B Analog Digital 2 Voltage Level 0 7 Vp p 3 Input impedance 75 Ω 3 3 Operating Frequency Ho Horizontal 30 83 kHz Vertical 56 75Hz 4 Max R...

Страница 3: ...Copyright 2010 LG Electronics Inc All right reserved 3 LGE Internal Use Only Only for training and service purposes ...

Страница 4: ...Copyright 2010 LG Electronics Inc All right reserved 4 LGE Internal Use Only Only for training and service purposes ...

Страница 5: ...Copyright 2010 LG Electronics Inc All right reserved 5 LGE Internal Use Only Only for training and service purposes ...

Страница 6: ...Copyright 2010 LG Electronics Inc All right reserved 6 LGE Internal Use Only Only for training and service purposes ...

Страница 7: ...Display Modes Resolution Horizontal Freq kHz Vertical Freq Hz 1 640 x 480 31 469 59 940 2 640 x 480 37 500 75 000 3 800 x 600 37 879 60 317 4 800 x 600 46 875 75 000 5 1024 x 768 48 363 60 004 6 1024 x 768 56 476 70 069 7 1024 x 768 60 023 75 029 8 1280 x 1024 63 981 60 020 9 1280 x 1024 79 976 75 025 10 1440 x 900 55 935 59 887 ...

Страница 8: ... the monitor on a soft flat and unscrew the screw to remove the stand and the base 2 Use tool to open all latches 3 Put the front face down disassemble back cover 4 Pull the key board out of bezel 5 Disassemble the LVDS cable and tear the aluminum foils 6 Unscrew the 6 screws to remove the main board the power board and the adapter board ...

Страница 9: ...G Electronics Inc All right reserved 9 LGE Internal Use Only Only for training and service purposes 7 The mainframe 8 Disconnect the marked cables from the boards 9 Unscrew the 4 screws to remove the bezel 10 The panel ...

Страница 10: ...Use Only Only for training and service purposes DISASSEMBLY Stand 1 Press the release button 2 Consequently pull the base directly 3 The stand 4 Directly remove the stand cover by hand 5 Unscrew the 3 screws to remove the hinge and the stand 6 Stand cover stand and hinge ...

Страница 11: ...e purposes BLOCK DIAGRAM MAIN BOARD U401 DDC DSUB PORT SCALAR RTD2271 GR Crystal X401 14 31818MHZ CN402 to Keyboard A D input control M24C16 WMN6TP U402 CN406 to Panel LVDS output Panel Power sequence control circuit Block Q705 Q706 Power input CN701 LDO U701 CAPACITOR U703 3 3V 1 2V DSUB CN101 EEPROM U101 ...

Страница 12: ...ice purposes POWER BOARD EMI filter Start Resistor R920 R921 R922 PWM Control IC901 Transformer AC input Bridge Rectifier and Filter Feedback Circuit Rectifier diodes Photo coupler IC902 ZD801 LED CN802 PWM Control TA9690GN IC801 14 5V MOSFET Q801 DIM ENA L801 LED CN803 PWM Control TA9690GN IC802 14 5V 5V ...

Страница 13: ...gets the video signal converted analog to digital interpolates input to 1440 X 900 resolution signal and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of the one 3 3V and one 1 2V regulators to convert power which is provided 5V in Power board 12V is provided for inverter board 5V is provided for LCD panel Also 5V is converted 3 3V and 1 2V by regulator Converted power ...

Страница 14: ...le then key in the manufacturer name model name product code then choose the correct model name base on the monitor As Fig 2 4 Scan serial No to DDC recorder by Bar Reader then read again in the Verify SN 5 According to the message of DDC program when the picture as fig 1 appears it show DDC record has finished Fig 1 Please check Manufacturer Name Vendor Assigned Code Monitor Name Serial Number it...

Страница 15: ...Copyright 2010 LG Electronics Inc All right reserved 15 LGE Internal Use Only Only for training and service purposes Fig 2 ...

Страница 16: ...ain Allows you to set the R G B Gain value manually Analog Only c R G B Offset Allows you to set the R G B Offset value manually Analog Only d R G B 6500K Allows you to set the R G B 6500K value manually e R G B 9300K Allows you to set the R G B 9300K value manually f R G B User Allows you to set the R G B User value manually g R G B sRGB Allows you to set the R G B sRGB value manually h R G B Nor...

Страница 17: ...TROUBLESHOOTING GUIDE No Power Power Indicator Off Please reinsert and make sure the AC of 100 240V is normal Measure U703 PIN2 1 2V U701 PIN2 3 3V Check the Adapter Inverter section Check CN701 or replace U703 and U701 NO NO YES YES 1 NO POWER Check X401 oscillate waveforms are normal Replace X401 Replace U401 NO YES ...

Страница 18: ...IPS LIPS YES 1 Check C703 2 Check C711 C713 3 Trouble in Scaler IC NO YES YES YES Check CN701 PIN 6 5V NO Check BL ON OFF pulse as Contacting scope No Raster OSD Is Not Displayed Check U701 PIN 2 3 3V Check CN701 PIN 6 5V Check power board and find out a short point as penning each power line 1 Check U701 2 Check C702 C703 C704 Check U703 1 2V NO NO ...

Страница 19: ...ice purposes 3 NO RASTER OSD IS NOT DISPLAY MSTAR 1 Check C415 C418 2 Check X401 3 Trouble in Scaler IC Scaler pin 127 128 oscillates as 14 31818 MHz No Raster OSD Is Not Displayed Check connection line from D SUB to Scaler Trouble in cable or LCD module NO YES YES NO Scaler IC pin 22 H Sync pin 21 V Sync ...

Страница 20: ...ctronics Inc All right reserved 20 LGE Internal Use Only Only for training and service purposes 4 TROUBLE IN DPM Trouble in DPM Scaler IC pin 22 H Sync pin 21 V Sync Check H V sync line Trouble in cable or LCD module NO YES ...

Страница 21: ...aining and service purposes 5 POWER Replace panel Check Vout 50V Check L801 ZD801 F801 NO YES Check CN801 14 5V Check L903 C912 YES NO YES No Power Power Indicator Off Check AC line volt Check the adapter Check AC line AC socket Replace adapter NO YES NO Check main board Check main board NO ...

Страница 22: ... LGE Internal Use Only Only for training and service purposes 6 RASTER Check DIM Check U401 Check C141 C142 NO Raster Lamp Off Check CN701 PIN6 5V Check ON OFF signal Check IC901 Check Interface section or main board NO NO NO YES YES Check PANEL_VCC YES NO ...

Страница 23: ...Copyright 2010 LG Electronics Inc All right reserved 23 LGE Internal Use Only Only for training and service purposes WIRING DIAGRAM ...

Страница 24: ...this chassis have special safety related characteristics These parts are identified by in the EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE ...

Страница 25: ...0 KEPCAQL1 EBU60704504 KEY BOARD 030 LCM190A1L0GA703 COV30101226 PANEL TPM190A1L0G C1B FQ 040 ADPC91503YC3 EBU60704303 POWER BOARD 050 LNPCA9361XYC1 EBU60934907 CONVERTER BOARD 060 756GQACB KL017 00 EBU60714343 MAIN BOARD CBPCAR6LGQ1 070 A15G0842G01301 MDQ62818701 MAIN FRAME 080 802GQAME016 ACQ85326901 REAR COVER ASS Y 090 A37G0127 8 AGU73530301 HINGE ASS Y 100 A34G1405AED 1B0100 MCK66558601 STAND...

Страница 26: ...LE_DET SOG PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PB8 PB9 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PA8 PA9 5V VCC3 3 V12S Audio_EN Audio_DET AVS0 DVI5V VGA_5V R0 R0 G0 G0 B0 AHS0 B0 DDCSCL1 DDCSDA1 RX1 RXC RX2 RX1 RX2 RX0 RX0 RXC DDCSCL2 DDCSDA2 Power 06_POWER 5V VCC3 3 V12S VLCD Panel_ON Adj_BACKLIGHT on_BACKLIGHT Audio_EN Audio_DET PANEL I O 05_PANEL I O PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PB8 PB9 PA0 PA1 PA2 PA3 P...

Страница 27: ... 3 8 4 9 5 11 12 13 14 15 10 17 16 CN101 DB15 VGA_5V AHS0 5 AVS0 5 DET_VGA B0 5 B0 5 R0 5 G0 5 G0 5 R0 5 EDID_WP GIN0 C112 NC 22pF 50V C103 5pF 50V ESD_VGA R121 100R 1 16W 5 R122 2K2 1 16W 5 C109 5pF 50V ZD101 RLZ5 6B C106 5pF 50V C111 NC 22pF 50V DDCSDA1 5 RIN0 R110 75R 1 16W 1 R117 75R 1 16W 1 GIN0 BIN0 R108 0R05 1 16W R115 0R05 1 16W SOG 5 R111 100R 1 16W 5 R109 100R 1 16W 5 R118 100R 1 16W 5 R...

Страница 28: ... U105 NC RX2 5 R 1 2 8 N C R 1 2 9 N C DDC_WP DAT2 R125 NC R126 NC R127 NC CH1 1 VN 2 CH2 3 CH3 4 VP 5 CH4 6 U104 NC CH1 1 VN 2 CH2 3 CH3 4 VP 5 CH4 6 U106 NC CH1 1 VN 2 CH2 3 CH3 4 VP 5 CH4 6 U107 NC DVI5V 5 FB101 NC DAT2 1 DAT2 2 2 4shield 3 DAT4 4 DAT4 5 DDC SCL 6 DDC SDA 7 VSYNC 8 DAT1 9 DAT1 10 1 3shield 11 DAT3 12 DAT3 13 5V 14 SYNC GND 15 HPD 16 DAT0 17 DAT0 18 0 5shield 19 DAT5 20 DAT5 21 ...

Страница 29: ...BCKM PB3 LVB2P PB4 LVB3P PB0 LVB3M PB1 DDCSCL2 4 V33P DDCSDA2 4 R425 100R 1 16W 5 KEY1 LVBCKM PB3 LVBCKP PB2 KEY2 CABLE_DET EESCL EDID_WP EDID_WP 3 4 EESDA V33TMDS R430 6K2 1 10W 1 TMDS_VDD 1 TMDS_REXT 2 Reserved 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Reserved 8 Reserved 9 Reserved 10 TMDS_GND 11 RX2P_1 12 RX2N_1 13 RX1P_1 14 RX1N_1 15 RX0P_1 16 RX0N_1 17 RXCP_1 18 RXCN_1 19 TMDS_VDD2 20 AV...

Страница 30: ...RXO1 RXO1 R457 220 OHM 1 4W RXO2 PA6 LVA1P RXO2 PA5 LVA2M PA0 LVA3P PA4 LVA2P PA3 LVBCKM PA1 LVA3M PA7 LVA1M PA 0 9 RXOC PA8 LVA0P RXOC RXO3 RXO3 RXE0 PB 0 9 5 PA 0 9 5 RXE0 VLCD 7 VLCD RXE1 RXE1 RXE2 RXE2 RXOC RXOC RXE3 RXE3 RXOC PA9 LVA0M LVA0P RXE0 PA2 LVBCKP LVB2M RXO2 LVACKM RXOC RXE1 LVA1M RXE2 LVA2M RXO1 LVB1M RXO3 LVB3M RXE3 LVA3M RXO0 LVB0M RXE0 LVA0M RXOC LVBCKP LVBCKM RXOC RXE2 LVA2P RX...

Страница 31: ...6K 1 16W C702 100uF16V C710 100uF16V C705 NC 10uF 10V R702 1K 1 16W R707 5 1 OHM 5 2WS VI 3 VO 2 GND 1 U703 R716 NC R718 10K 1 16W 5 VOUT 2 VIN 3 GND 1 U702 NC G1084 33T43Uf VIN 3 VOUT 2 GND 1 U701 R704 10K 1 16W 5 S 1 S 2 S 3 G 4 D 8 D 7 D 6 D 5 Q704 AO4449 7A 30V C711 NC 100uF 16V R714 10K 1 16W 5 R703 10K 1 16W 5 Q701 PMBS3904 R713 10K 1 16W 5 VI 3 VO 2 GND 1 U707 R717 4K7 1 16W 5 on_BACKLIGHT ...

Страница 32: ...R C915 100N 50V C917 100N 50V 8 R901 620K 1 1 4W IC901 TOP255EN 1 2 3 4 5 7 V X C F S D C908 47uF 50V R906 30 OHM 1 4W C907A 100uF 450V Relayout R926 2 2 OHM 1 4W R914 NC R903 11K 1 8W 1 C911 2N2 500V ON OFF_INPUT 17 4V C906 1500PF2KV C912 1000uF 25V C916 10N 16V VOL C919 2N2 500V DIM_OUTPUT R927 0R05 4A 1 4W R908 30 OHM 1 4W R907 30 OHM 1 4W R913 10K 1 10W 1 R925 82K 1 1 8W HS1 HEAT SINK IC901 1 ...

Страница 33: ...GE Internal Use Only Only for training and service purposes Q622 NC BKLT VBRI PANEL Q621 NC ON OFF_INPUT R620 NC 5V1 R625 NC R624 NC R626 N C R627 NC 5V1 R622 NC DIM_OUTPUT DIM_INPUT ON OFF_OUTPUT R629 NC BKLT EN PANEL R628 0R05 1 10W R621 N C R623 0R05 1 10W ...

Страница 34: ...5 NC R836 1 OHM 1 10W L801 22uH R832 1 OHM 1 10W C801 100N 50V C814 NC R801 0 3 OHM 1 1 4W Q801 AO4828L 1 2 3 4 5 6 7 8 S2 G2 S1 G1 D1 D1 D2 D2 C805 0 47uF 16V F801 FUSE R824 56K 5 1 10W R805 120KOHM 1 10W R829 1 OHM 1 10W R838 1 OHM 1 10W R815 27K 1 10W 1 R814 10 OHM 1 10W C813 NC R804 27K 1 10W 1 R813 10K 1 10W 5 R840 1 OHM 1 10W R802 0 3 OHM OVP2 R812 100 OHM 1 10W R827 1 OHM 1 10W R822 1M 1 10...

Страница 35: ...Copyright 2010 LG Electronics Inc All right reserved 35 LGE Internal Use Only Only for training and service purposes Sep 2010 P NO Printed in China ...

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