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LG T711BK E, Руководство пользователя

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LG T711BK E Скачать руководство пользователя страница 12

- 13 -

1. NO POWER

NO POWER

(POWER INDICATOR OFF)

TROUBLE IN
D900

TROUBLE IN FUSE
(F901)

TROUBLE IN 
Q901

TROUBLE IN 
D941, D942, D951, 
D961, D971

TROUBLE IN 

Q903, Q952, 

Q951, Q942, Q941

CHECK

FUSE OK?

CHECK

C908 VOLTAGE?

(AC120V: 160VDC,

AC220V: 304VDC)

NO

YES

YES

YES

YES

NO

NO

NO

CHECK

IC901 PIN 6

WAVEFORM 

?

CHECK

D941, D942, 

D951, D961,  D971

VOLTAGE?

TROUBLESHOOTING GUIDE

Содержание T711BK E

Страница 1: ...80 x 9 60 Preset Image Size 310 x 230 mm 12 20 x 9 06 4 2 Display Color Full Colors 4 3 Display Resolution 1280 x 1024 60Hz Max Non Interlace 4 4 Video Bandwidth 110 MHz 5 ENVIRONMENT 5 1 Operating Temperature 0 C 40 C Ambient 5 2 Relative Humidity 10 90 Non condensing 5 3 Altitude 5 000 m 6 DIMENSIONS with TILT SWIVEL Width 400 mm 15 75 inch Depth 411 mm 16 18 inch Height 397 5 mm 15 65 inch 7 WE...

Страница 2: ...sign Soldering must be inspected for the cold solder joints frayed leads damaged insulation solder splashes or the sharp points Be sure to remove all foreign materials IMPLOSION PROTECTION All used display tubes are equipped with an integral implosion protection system but care should be taken to avoid damage and scratching during installation Use only same type display tubes X RADIATION The only ...

Страница 3: ...1 1 14 2 70 0 57 V 85 07 11 755 11 178 0 577 0 056 0 503 0 018 H 68 677 14 561 10 836 3 725 1 016 2 201 0 508 V 85 00 11 764 11 182 0 582 0 044 0 524 0 014 Mode H V Sort 1 2 3 4 640x480 75Hz 800x600 85Hz 1024x768 85Hz 800x600 75Hz Dot Clock MHz Horizontal Frequency kHz Vertical Frequency Hz Horizontal etc µs Vertical etc ms Sync Polarity Frequency Total Period A Video Active Time B Sync Duration E...

Страница 4: ...ge and if abnormal or damaging circuit turns out orange blink 3 Select Button Use this button to enter a selection in the on screen display 4 Button Use these buttons to choose or adjust items in the on screen display 5 MENU Button Use this button to enter or exit the on screen display FRONT VIEW REAR VIEW AC Power Socket Signal Connector ID Label Front Control Panel Power ON OFF Button See Front ...

Страница 5: ...WIRING DIAGRAM 6 P501 P301 P302 G2 P702 P701 T1 P402 P902 S S Signal Cable AC Socket FBT ...

Страница 6: ... the Tilt Swivel by pulling it upward 3 Pressing the latch b Back cover by pushing it upward 4 Release the latch c See Tip Spec 5 Slide the Back Cover away from the Front Cabinet of the monitor Tip C B A Tip Spec A Width 5 0 15 0mm B Depth 0 6 0 9mm C Height 12 0mm a Back Cover Cabinet b c 1 2 2 3 3 ...

Страница 7: ...ertical Blanking 160V 15V D D Feed Back 30V 12V MICOM IC401 SCL SDA H V sync PWM control signal 15V 15V 50V DY CDT Heater 6 3V I 2 C I 2 C I 2 C H V Sync Screen H V R G B Bias R G B Contrast H Drive B Drive B 15V BRIGHTNESS CONTRAST COLOR CURVE H V POSITION H V SIZE SPCC TRAPIZODE PIN BALANCE PARALLELOGRAM TOP CORNER BOTTOM CORNER RECALL DEGAUSSING MOIRE LANGUAGE RESET OSD TIME TILT DPM Control Ci...

Страница 8: ...operating mode and offers the controlled data H size H position V size etc 4 The controlled data of each mode is stored in itself 5 User can adjust screen condition by each OSD function The data of the adjusted condition is stored in EEPROM IC402 6 Horizontal and Vertical Oscillation This circuit generates the horizontal pulse and the vertical pulse by taking the H and V sync signal This circuit c...

Страница 9: ...e deflection yoke of the CRT 16 Video Pre Amp Circuit This circuit amplifies the analog video signal from 0 0 7V to 0 4V It is operated by taking the clamp R G B drive and contrast signal from the Micom IC401 17 Video Output Amp Circuit This circuit amplifies the video signal which comes from the video pre amp circuit and amplified it to applied the CRT cathode ...

Страница 10: ...olor data will be erased 4 Power button of the monitor turn off turn on 5 COMMAND PRESET START Y Yes command 6 DIST ADJ CTRL PWM TILT command 7 Adjust tilt as arrow keys to be the best condition 8 DIST ADJ BALANCE command 9 Adjust parallelogram as arrow keys to be the best condition 10 Adjust balance of pin balance as arrow keys to be the best condition 11 DIST ADJ FOS ADJ command 12 Adjust V SIZE...

Страница 11: ...ay color 15 0 full white patten at Mode 4 21 COLOR ADJ LUMINANCE ABL command 22 Adjust ABL to 32 1FL of the luminance 23 After push the ENTER key and COMMAND PRESET EXIT Y Yes command 24 Exit from the program 5 Input EDID Data 1 Display color 15 0 cross hatch pattern at Mode 4 2 EEPROM Write EDID command and confirm EDID Write OK message of monitor 3 Exit from the alignment program 4 Power switch ...

Страница 12: ...USE F901 TROUBLE IN Q901 TROUBLE IN D941 D942 D951 D961 D971 TROUBLE IN Q903 Q952 Q951 Q942 Q941 CHECK FUSE OK CHECK C908 VOLTAGE AC120V 160VDC AC220V 304VDC NO YES YES YES YES NO NO NO CHECK IC901 PIN 6 WAVEFORM CHECK D941 D942 D951 D961 D971 VOLTAGE TROUBLESHOOTING GUIDE ...

Страница 13: ...C303 PIN 1 2 3 CHECK IC303 PIN 4 80V PIN 8 12V TROUBLE IN P302 5V LINE TROUBLE IN PC SIGNAL P301 SIGNAL CABLE TROUBLE IN IC302 TROUBLE IN P303 12V LINE 80V LINE TROUBLE IN IC303 NO YES NO NO YES YES YES YES NO NO CHECK R G B CATHODE VOLTAGE TROUBLE IN R331 R333 L311 L313 D307 D312 TROUBLE IN CRT SOCKET YES NO ...

Страница 14: ...CHECK POWER INDICATOR GREEN or AMBER CHECK D712 ANODE 160V CHECK G1 VOLTAGE 55V 15V TROUBLE IN D712 TROUBLE IN Q799 DPM MODE NO H and or V SYNC AMBER NO GREEN YES NO CHECK CDT HEAT VOLTAGE 6 3V TROUBLE IN D941 Q942 Q941 YES NO TROUBLE IN CDT YES ...

Страница 15: ...E VERTICAL LINE CHECK Q706 CHECK B VOLTAGE 50V CHECK T701 FBT PIN 2 31KHZ 60V 69KHZ 140V CHECK Q705 COLLECTOR WAVEFORM TROUBLE IN Q706 TROUBLE IN 50V LINE TROUBLE IN Q719 Q720 D710 TROUBLE IN Q705 TROUBLE IN T701 P701 NO NO YES YES YES YES NO NO 0V T ...

Страница 16: ...UBLE IN IC401 MICOM TROUBLE IN Q711 Q716 TROUBLE IN L703 TROUBLE IN C722 C723 C726 C729 NO NO NO YES YES YES Cs SIGNAL TABLE HORIZONTAL FREQUENCY fH 30K 33 9K 34K 38 9K 39K 43 9K 44K 48 9K 49K 51 9K 52K 57 9K 58K 61 9K 62K 65 9K 66K 71K Cs1 L L H H H H H H H Cs3 L H L L L L L H H Cs2 L L L L H H H H H ...

Страница 17: ...8 6 NO VERTICAL DEFLECTION NO V DEFLECTION ONE HORIZONTAL LINE CHECK IC601 PIN 2 15V CHECK IC701 PIN 12 13 TROUBLE IN D951 15V LINE TROUBLE IN IC701 TROUBLE IN IC601 V CIRCUIT NO YES YES NO 5V 12Pin 13Pin ...

Страница 18: ...D TROUBLE IN OSD PERIPHERAL CIRCUIT NO OSD TROUBLE IN 5V LINE TROUBLE IN IC401 PIN29 V FBP IC701V LINE H FBP NO YES DC 5V YES NO Pin 24 5V Pin 1 CHECK IC302 B 5V ENTER BUTTON MUST BE PRESSED CHECK IC302 PIN 1 24 WAVEFORM ...

Страница 19: ...V CHECK PC PC IS NOT GOING INTO DPM OFF MODE TROUBLE IN X401 TROUBLE IN IC401 MICOM TROUBLE IN Q941 Q942 Q951 Q952 TROUBLE IN PC OFF MODE FAILURE INPUT H V SYNC SIGNAL H V SYNC NO OFF MODE NO NO NO NO DPMF 0V DPM TABLE Mode Item NORMAL STAND BY SUSPEND OFF DPMF H L L L LED GREEN AMBER AMBER AMBER DPMS H H H L YES YES SEE DPM TABLE YES YES 5V 12MHz ...

Страница 20: ...HECK Q953 COLLECTOR VOLTAGE CHECK P902 CHECK RL901 TROUBLE IN IC401 MICOM TROUBLE IN Q953 TROUBLE IN P902 TROUBLE IN RL901 TROUBLE IN TH901 DEGAUSSING COIL NO DEGAUSSING DC 15V NO NO NO NO YES YES YES YES DEGAUSS ON THE OSD MENU MUST BE PRESSED ...

Страница 21: ...N NO TILT NO ROTATION TROUBLE IN IC401 MICOM TROUBLE IN 15V LINE 6 3V LINE TROUBLE IN Q501 Q503 TROUBLE IN P501 TILT COIL NO YES YES YES CHECK 15V LINE AND 6 3V LINE CHECK Q503 EMITTER VOLTAGE NO NO CHECK IC401 PIN21 WAVE FORM ...

Страница 22: ...EXPLODED VIEW 23 10 12 12 13 11 2 11 1 14 14 4 3 8 B A 2 6 7 5 a d c b b 9 1 M EN U S E LE C T 15 e ...

Страница 23: ...8 NEW TYPE COIL DEGAUSSING 16 0OHM 0 35MM 80T 17 L1090MM WITH EARTH 700BJ FBT FLY BACK TRANSFORMER CF2154 F700BK 17 71K FLAT FCDT FST LIEN CHANGE 17 SOCKET CIRC POWER CDJ 3C DUOLING AC UNIVERSAL 3PIN BLACK SOCKET CIRC POWER SA 4S HUA JIE AC UNIVERSAL 3PIN BLACK CABLE D SUB UL20276 9C 5 8MM AT 1500MM GRAY 85964 T710BJ DM METAL SHIELD BOTTOM CB553 0 8T REAR HOLE DELETE For World Wide S W 710E 710S M...

Страница 24: ...181 288K MKT 100V 683JTR PHS26683 C603 0CE476EK638 47UF KMG 50V M FM5 TP 5 C604 0CZZTFT001V ECQB1H473JM3 473J 50V TP5 0 MATSUSHITA C605 0CK1020W515 1000P 500V K B TS C701 0CQ4721N409 0 0047UF D 100V 5 PE TP5 C702 0CZZTFT001M ECQB1H103JF3 MATSUSHITA 50V 10000PF 5 TAPING 103J C703 0CZZTFT001Z ECQB1H104JM3 104J 50V TP5 0 MATSUSHITA C704 0CF8221N409 8200PF D 100V 5 PE TP 5 C706 0CZZTFT001Z ECQB1H104JM...

Страница 25: ...0V 0 15A 2A 4NSSEC 25UA D310 0DS124409AA 1SS244 TP ROHM KOREA D311 0DS124409AA 1SS244 TP ROHM KOREA D312 0DS124409AA 1SS244 TP ROHM KOREA D313 0DS124409AA 1SS244 TP ROHM KOREA D314 0DS124409AA 1SS244 TP ROHM KOREA D315 0DS124409AA 1SS244 TP ROHM KOREA D316 0DRTW00119A 1N4005 1021 TIWAN SEMI TP DO41 600V 1A 30A 2USSEC 5 0UA D402 0DSGF00019A 1N4148 GULF TP DO35 100V 0 15A 2A 4NSSEC 25UA D404 971 001...

Страница 26: ...RADIAL FB922 6210TCE003A BRD3510B BO SUNG 3510MM RADIAL L311 0LA0680K119 0 68UH K 2 3 3 4 TP L312 0LA0680K119 0 68UH K 2 3 3 4 TP L313 0LA0680K119 0 68UH K 2 3 3 4 TP L702 6140TBZ025D H SIZE DR12 20 C6 0 150UH 700BJ L703 6140TYZ010G LX31 GET DR14 15 C5 2 16 5T 4 9UH EB770H L705 6140TBZ026C DR15 18 C9 8 100UH 0 1 30MM 40 5T D D CHOKE L901 6200TZZ004A SQE2626 NAMYANG BK L FILTER 15MH EB770H L903 621...

Страница 27: ...0 1 4W 3 5 TA52 R408 0RD1300Q609 130 1 4W 3 5 TA52 R409 0RD1000Q609 100 1 4W 3 5 TA52 R411 0RD3901Q609 3 90K 1 4W 3 5 TA52 R412 0RD1004Q609 1M OHM 1 4 W 3 4 5 TA52 R415 0RD1301Q609 1 30K 1 4W 3 5 TA52 R416 0RD4701Q609 4 70K 1 4W 3 5 TA52 R417 0RD1000Q609 100 1 4W 3 5 TA52 R418 0RD1002Q609 10K 1 4W 3 5 TA52 R419 0RD1004Q609 1M OHM 1 4 W 3 4 5 TA52 R420 0RD3001Q609 3K 1 4W 3 5 TA52 R424 0RD2200Q609 ...

Страница 28: ...9 0RN8202F409 82K 1 6W 1 TA52 R831 0RD1002Q609 10K 1 4W 3 5 TA52 R901 0RD4703A609 470K OHM 1 2 W 7 0 5 TA52 R902 0RD0332Q609 33 1 4W 3 5 TA52 R903 0RN1800F409 180 OHM 1 6 W 1 00 TA52 R904 0RX3902K665 39K OHM 2 W 5 SF R906 0RD6200Q609 620 1 4W 3 5 TA52 R907 0RD3902Q609 39K 1 4W 3 5 TA52 R910 0RX4702J609 47K OHM 1 W 5 TA52 R911 0RD0202Q609 20 1 4W 3 5 TA52 R912 0RN1802F409 18K 1 6W 1 TA52 R913 0RN27...

Страница 29: ...FLYBACK GENERATOR GUARD CIRCUIT INPUT STAGE from e g TDA485X or SAA4856 INP INN IPROTECTION AMPLIFIER B 4 9 6 8 1 2 3 5 7 OUTA GUARO output power save mode GND FEEDB OUTB vertical deflection coil Rp Vp VFB Rm Rref Idefl Block Diagram SYMBOL INP INN VP OUTB GND OUTA VFB GUARD FEEDB DESCRIPTION non inverted input inverted input supply voltage output B ground output A flyback supply voltage guard out...

Страница 30: ...IZE EW OUTPUT V OUTPUT V LINEARITY V LINEARITY BALANCE H PINCUSHION H CORNER H TRAPEZIUM H SIZE OUTPUT ASYMMETRIC EW CORRECTION FOCUS HORIZONTAL AND VERTICAL B CONTROL B CONTROL APPLICATION H OUTPUT STAGE X RAY PROTECTION PLL2 PARALLELOGRAM PIN UNBALANCE AND SOFT START V POSITION V SIZE VOVSCN TDA4841PS I C BUS RECEIVER 2 I C BUS REGISTERS HUNLOCK SDA SCL 9 2 to 16V H C sync V clamping blanking PR...

Страница 31: ... 32 33 SCHEMATIC DIAGRAM NOTICE Since this is a basic schematic diagram The value of components and some partial connection are sucject to be changed for improvement without notice ...

Страница 32: ... 34 35 PRINTED CIRCUIT BOARD 1 MAIN BOARD Component Side 2 MAIN BOARD Solder Side ...

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