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LG FLATRON L1733TR, Руководство по обслуживанию

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LG FLATRON L1733TR Скачать руководство пользователя страница 18

TROUBLESHOOTING GUIDE

- 18 -

Copyright 

2007 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

1. NO POWER

NO POWER

(POWER INDICATOR OFF)

NO

Check Power Board, 
And Find Out a Short Point 
as Opening
Each Power Line

No Problem

1

Waveforms

U201-#96

Check Key Control
Connector Routine

Check U201

NO

NO

Check  3.3V Line

(Open Check)

Check 3.3V Line

NO

Check X-TAL

YES

Check J403 Voltage 

Pin5, Pin6 (5V)?

Check

U301 Pin2 Voltage

(3.3V) ?

Is U201 

Pin75 (3.3V) 

Voltage ?

Check U201 Pin 96 

Pulse

1

YES

YES

YES

Содержание FLATRON L1733TR

Страница 1: ...p biz LGservice com CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO LM57B MODEL L1733TR L1733TR SFQ A MQP L1933TR L1933TR SFQ A MQP A RQP To apply the MSTAR Chip Same model for Service Internal Use Only ...

Страница 2: ...0 1 DFC 3 SIGNAL Refer to the Timing Chart 3 1 Sync Signal Type Separate Sync Digital SOG 3 2 Video Input Signal 1 Type R G B Analog 2 Voltage Level 0 0 71 V a Color 0 0 0 Vp p b Color 7 0 0 467Vp p c Color 15 0 0 714Vp p 3 Input Impedance 75Ω 3 3 Operating Frequency Horizontal 30 83kHz Vertical 56 75Hz 4 Max Resolution D sub Analog 1280 x 1024 75Hz Digital 1280 x 1024 60Hz 5 POWER SUPPLY 5 1 Powe...

Страница 3: ...s 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 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 ...

Страница 4: ...at sinks are correctly installed 8 Always connect the test 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 Sens...

Страница 5: ... by gently prying up on the lead with the soldering iron 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 b...

Страница 6: ... and carefully crimp it around the IC pin Solder the IC connection 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 ...

Страница 7: ... 16 80 160 800 x 600 V Lines 75 0 625 600 1 3 21 7 H Pixels 57 283 49 725 1152 832 32 64 224 832 x 624 V Lines 74 55 667 624 1 3 39 8 H Pixels 65 0 48 363 1344 1024 24 136 160 1024 x 768 V Lines 60 0 806 768 3 6 29 9 H Pixels 78 75 60 123 1312 1024 16 96 176 1024 x 768 V Lines 75 029 800 768 1 3 28 10 H Pixels 100 0 68 681 1456 1152 32 128 144 1152 x 870 V Lines 75 062 915 870 3 3 39 11 H Pixels 9...

Страница 8: ...ht reserved Only for training and service purposes LGE Internal Use Only Monitor on the pad Pull up the stand part Separate head stand 2 3 4 2 Hold the head stand base and then Twist Stand until Click 4 1 5 Soft pad on the table 1 DISASSEMBLY Set ...

Страница 9: ...nc All right reserved Only for training and service purposes LGE Internal Use Only Remove the screws Disassemble back cover 6 8 1 Pull the front cover upward 2 Then let the all latches are separated 3 1 3 2 3 Put the front face down 9 7 ...

Страница 10: ...ning and service purposes LGE Internal Use Only DISASSEMBLY Stand Push the four latches on the bottom to the outside and Separate Stand Body Base Reference the 1 2 After finished repair necessarily push 4ea Latches to inside for restoration 1 1 In case of Latch 4 1 2 2 3 ...

Страница 11: ...for training and service purposes LGE Internal Use Only DISASSEMBLY Stand Hold the stand body Confirm two latch of right and left Push the latch to the inside Push the base to the opposite direction 1 2 3 Confirm the condition of separation 5 4 In case of Latch 2 ...

Страница 12: ... purposes LGE Internal Use Only TSUMx6AL ADC TMDS Rx MStarACE LVDS Tx LVDS Analog R G B Digital D Sub DVI D LIPS Filter 5V 12V 5V 3 3V 1 8V Vcc 5V 5V Scaler MCU Intel8032 Inverter 4 lamps 12V Regulator KEY 3 3V 1 8V Line Buffer OSD SSC EEPROM System Module 3 3V SDA SCL 3 3V Flash ROM 12V EEPROM EDID ...

Страница 13: ...ternal Use Only LAMP High Low POWER INVERTER Inverter Control IC P ch N ch Inverter Trans SMPS Lamp Current Feedback Over Voltage Protection Power Control IC Feedback Line Filter L N Drive Block 12V 13V 5V Inverter On OFF 3 3V Dimming Lamp Current Control Aux Drive Start Module Vcc Main Board Scaler DC DC converter 12V 5V ...

Страница 14: ...og to digital interpolates input to 1280 X 1024 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 8V regulators to convert power which is provided 5V in Power board 12V is provided for inverter 5V is provided for LCD panel Also 5V is converted 3 3V and 1 8V by regulator Converted power is provided for IC in the main board The ...

Страница 15: ... part function is for transfer the input AC voltage to a DC voltage through 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 duri...

Страница 16: ...eed setup Windows 2000 XP Need to Port Setup This program 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...

Страница 17: ...OSD 1 Turn off the power switch at the front side of the display 2 Wait for about 5 seconds and press MENU POWER switch with 1 second interval 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a Auto Color W B balance and Automatically sets the gain and offset value b NVRAM INIT EEPROM initialize 24C08 c CLEAR ETI To initialize using time d AGING Select Aging m...

Страница 18: ...ER INDICATOR OFF NO Check Power Board And Find Out a Short Point as Opening Each Power Line No Problem 1 Waveforms U201 96 Check Key Control Connector Routine Check U201 NO NO Check 3 3V Line Open Check Check 3 3V Line NO Check X TAL YES Check J403 Voltage Pin5 Pin6 5V Check U301 Pin2 Voltage 3 3V Is U201 Pin75 3 3V Voltage Check U201 Pin 96 Pulse 1 YES YES YES ...

Страница 19: ...O NO NO REPLACE CCFL LAMP IN THE LCD MODULE CHECK POWER BOARD AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE CHECK MICOM INV ON OFF PORT 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT LIPS J403 PIN5 PIN6 5V J403 PIN9 5V J403 PIN10 5V CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE YES YES YES YES ...

Страница 20: ...YED NO NO NO TROUBLE IN CABLE OR LCD MODULE CHECK U301 1 CHECK C210 C211 SOLDERING CONDITION 2 CHECK X201 3 TROUBLE IN U201 CHECK CONNECTION LINE FROM D SUB TO U201 U201 PIN96 97 OSCILLATE AS 14 31MHZ U201 PIN27 IS 48KHz H SYNC PIN28 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS AT MODE 12 1 2 1 2 Waveforms U201 96 97 U201 27 H SYNC 2 U201 28 V SYNC YES YES YES U201 PIN 16 75 3 3V ...

Страница 21: ...r training and service purposes LGE Internal Use Only 4 TROUBLE IN DPM TROUBLE IN DPM NO NO TROUBLE IN U201 CHECK PC PC IS NOT GOING INTO DPM OFF MODE CHECK H V SYNC LINE CHECK R442 R443 CHECK U201 PIN 27 28 SYNC PULSE 3 3 Waveforms R442 H Sync 3 R443 V Sync YES YES ...

Страница 22: ...POWER INDICATOR OFF NO Trouble in Fuse F101 CHECK 5V 12V Line NO NO Check BD101 Check U101 Pin7 9 10V Check D102 Trouble in Q101 NO Trouble in D201 D202 YES CHECK Fuse F101 OK CHECK C101 Voltage AC110V 160Vdc AC220V 304Vdc CHECK U101 Pin6 Waveform Square wave Come out Check Q101 Drain Waveform Check D201 D202 Voltage YES YES YES YES NO ...

Страница 23: ...put Main Board CHECK T301 T302 NO NO Check Q301 Q302 Check the waveform of U301 Pin11 12 19 20 Check the waveform of U301 Pin11 12 19 20 NO If waveform is no problem Check Q303 Q308 Or Trouble in U303 U304 YES CHECK P201 Pin9 3 3V Check U301 Pin3 5V Check U301 Pin2 OVP Less than 1 8V Check U301 Pin10 CMP Less than 2 75V Check U303 U304 Drain waveform YES YES YES NO ...

Страница 24: ...GRAM 24 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 11P 6P 3P 30P 6631900011H 6631T20023J 6631900109A 6631T20010E L1733TR 6631900125A L1933TR ...

Страница 25: ...PLODED VIEW 25 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 010 020 090 100 110 120 190 030 150 160 180 170 080 140 130 040 050 070 060 ...

Страница 26: ...SY MODULE HSD DUAL L1933TR AAN32608906 Base Assembly ASSY Lx53 LM57B Lx53 PATTERN TEXTURE 3043900041L 35509K0245D Cover MOLD ABS L1752 ABS L1752 NEW BODY L1733TR 35509K0246D Cover MOLD ABS L1952 ABS L1952 NEW BODY L1933TR 3520900038A Indicator LED PRE AMP LX52 PMMA NON LED LENS 49509K0266A Plate SHIELD LX52 LAMP L1733TR 49509K0267F Plate PRESS SPTE C 0 3 LAMP SPTE SHIELD for 19 LPL 5ms module L193...

Страница 27: ...12 0CK104CF56A 0603B104K160CT 100nF 10 16V C713 0CK104CF56A 0603B104K160CT 100nF 10 16V C714 0CC680CK41A C1608C0G1H680JT 68pF 5 50V DATE 2007 02 06 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C715 0CC680CK41A C1608C0G1H680JT 68pF 5 50V C716 0CK104CF56A 0603B104K160CT 100nF 10 16V C717 0CK104CF56A 0603B104K160CT 100nF 10 16V C718 0CK104CF56A 0603B104K160CT 100nF 10 16V C719 0CK104CF56A 0603B104K1...

Страница 28: ... 5 1 10W R711 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W 1 R712 0RJ0102D677 MCR03EZPJ100 10OHM 5 1 10W R713 0RJ0102D677 MCR03EZPJ100 10OHM 5 1 10W DATE 2007 02 06 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R714 0RJ1001D677 MCR03EZPJ102 1KOHM 5 1 10W R715 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W 1 R716 0RJ0332D677 MCR03EZPJ330 33OHM 5 1 10W R717 0RJ0752D677 MCR03EZPJ750 75OHM 5 1 10W R718 0RJ0682D677 MC...

Страница 29: ...O35 100V 0 1 D201 0DRNH00140A FCH10U15 NIHON INTER BULK TO D202 0DRNH00130A FCH10U10 NIHON INTER BULK TO D306 0DSGD00048A MM4148 GRANDE REEL TAPING LL D401 0DSDI00038A BAV99 F LF DIODES R TP SOT DATE 2007 02 06 S AL LOC NO PART NO DESCRIPTION SPECIFICATION D402 0DSDI00038A BAV99 F LF DIODES R TP SOT D403 0DSDI00038A BAV99 F LF DIODES R TP SOT D404 0DSDI00038A BAV99 F LF DIODES R TP SOT D405 0DSDI0...

Страница 30: ...TP R409 0RJ3600E472 360 OHM 1 8 W 1 2012 R TP TH101 6322A00035A 10D2 07 SEMITEC 10OHM 15 L1 T101 61709MC011A EER3016 430UH LX52 LIPS SMPS T301 61709MC010A EFD 2124 95UH INVERTER TRANS T302 61709MC010A EFD 2124 95UH INVERTER TRANS SC101 6620K00020A HUAJIE AC UL CSA 3PPIN BLACK F101 0FZZTTH001E TIME LAG HBC 2153 15MXE LEAD FB101 6210TCE003G BRS3550B BO SUNG 3550MM RADI HS1 4920900021A EXTRUSION 10 2...

Страница 31: ... 31 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only SCHEMATIC DIAGRAM 1 SCALER ...

Страница 32: ...2 POWER WAFER 32 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 33: ...3 INVERTER 33 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 34: ...4 POWER 34 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 35: ...Feb 2007 P NO MFL43002807 Printed in Korea ...

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