l1753s
Contents
1. 4 29 I 9 JEEPROM 4 2 us02 SCALER PWM 1000hm LISP PWM 2kohm LD1117818TR JD SCLA 4 2 9 9 C3 INVON 4 2 a voRUT 488 1 EE 9 1 8VD 4 2 ID SDAA 4 2 8 AW 1 2 C605 C3 LAMPADUI 1 470uF option READP 16V Se C704 0705 c706 eL 2 S O 1uF ee pm KDS184 T T SCALER PWM 100pF LIPS PWM 1uF SHORT CHK 4 2 c BI v 5g 8 NS 8 lt J404 SMW200 06 m a602 e a R710 KTA1273 Y 9 1 SVS 4 2 701 2 u gt 5V MoD KST3906 MTF 4 7K R604 EET cso4 se zz R704 180 5 1 10W L F 3 1 T it 3 3VD 4 1 10 5X Q O1UF 100uF R705 120 16V E E Q601 7 KST3904 1 2 c B711 R707 199 9 gt KEY1 1 2 9702 B LED AM 4 6 4 7K I pete I T O O1uF C702 O1uF KST390 E NVT T A gt 3VD 1 2 2 2 2 uu 3 INVERTER 6 OZEN d 6 Mae2. 901 WW I 4 Zoo 109 reet go G coco 1099 T 61 ZLY 5 L LOCH MAL dZZZ m a L0v2 LOcd 392 4 POWER VC NS gt ML 95 lt ee _ 6018 T voL AN 381 ON ATZ A A 9013 9023 5 316 A A x LEV VIS AS 0S 3nl 8 88 222 L ZN JG9NOO0Z8H 7019 MEL 9019 0S 3ni 8 z 359 15 T n p au WL 0G 3nZv O 0105 Lay zi cols 6919 06 40072 cei k vOLO 6023 S Z EN U L 5 MZ 813 lt ON 089 0224 LODONI NIZ 013 99 AZZ COZY 802 LOZY sS A L LN SOZ WN 1 0089 a 0 LOIN ZOLY 8l 18 MZ l Duc 44004 LVN E YOLA 2 ER H n m 9173 ES 070 e 0184 A ece sv vs 10995 M coca LOLOS UJJ 961200 22 1105 3400 2021 TEN NES S VZ11 S VZ11 1t mA veia 1 AJL 4 1 NIA NU 101 1 2 1 2029 064 1001 x 0 X404 OND ASZ ANOLY 6 1 0001 TT Ge P Ard LOZONS W9ETO 35020 1 severi S VZ11 A NV 3001 LOLA 9010 0S 101 4848 vag NZ Loca L26 00 1d NOL AGLZ 4LY O expe NZ SLIS
3. 25 CEA ss MIELE ES EAE E ES ERES SLEEP ES ES EIE EE les le loe z ola x xolol loiceiocioolilia amp loldi 5 10 o 1uF o suF 1uF O 1uF 9 0 0 0 0 2 8 D d a NC 1 4 BYPASS 2 7 GND 1 2 GND_9 I NC 2 LVBOM gt YOM B 4 2 NC 3 4 LVBOP gt YOP B 4 2 GND 2 5 GND 8 NC 4 g VDDP_4 NC_5 LVB1M SS a 7 gt Y1M B 4 2 paas 1 AVDD ADC 1 LVB1P gt 8 gt Y1P B 4 2 DIM DIMADJ 4 2 NC_6 LVB2M Mee SCALER PWM DIMMING NC_7 LVB2P gt Y2P B 1 2 AERE ped ec GND 3 TSUM16AWL LVBCKM gt CLKOUTM B 4 2 NC 8 VBCKP CLKOUTP B 4 2 NC_9 LVB3M gt Y3M B 1 2 AVDD ADC 2 L VB3P gt Y3P B 4 2 R509 390 REXT VDDC 3 3 3v PL 4 2 AVDD_PLL LVA0M YOM A 4 8 R501 56 C50g 0 047uF BINOM LVAOP VOS TOME SS mE Euh gt YOP R502 56 ceo O 047uF BINOP LVA1M l LIPS PWM DIMMING BLU A 4 2 gt 1 1 2 A522 SvS 4i 2 R503 56 6504 9 047UF GINOM LVA1P 4 7K 1 GINOP VADM gt Y1P A 4 2 R504 56 C5050 047uF L 5VS 1 GRN A 4 2 f B gt YM A 4 2 tel READY 5 5 1K C508 1000pF SOGINO LVA2 CA 5 DIMADJ 4 2 R506 56 C5070 047uF RINOM LVACKM gt CLKOUTM A 4 2 1 2 R507 56 047uF RINOP LVACKP AVDD ADC 3 GND_7 i Om F LAMP opt io
4. LeLxo n _ duunp AML AZZ AOSv 3 ae T ee NE t uude 8 A GZ VSI E 3 T L LHL L L4 ZOZO MZ ave 33 68 44 ZOZM 1029 LOLAO T 33 May 2007 P NO MFL30290843 Printed in China
5. 5 4 kg 11 91 Ibs PRECAUTION WARNING FOR THE SAFETY RELATED COMPONENT There are some special components used in LCD monitor that are important for safety These parts are marked on the schematic diagram and the parts list t is essential that these critical parts should be replaced with the manufacturer s specified parts to prevent electric shock fire or other hazard Do not modify original design without obtaining written permission from manufacturer or you will void the original parts and labor guarantee TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT Must mount the module using mounting holes arranged in four corners Do not press on the panel edge of the frame strongly or electric shock as this will result in damage to the Screen Do not scratch or press on the panel with any sharp objects such as 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 within the module If the surface of panel become dirty please wipe it off with a softmaterial Cleaning with a dirty or rough cloth may damage the panel N CAUTION Please use
6. Use only a grounded tip soldering iron to solder or unsolder ES devices Use only an anti static type solder removal device Some solder removal devices not classified as anti static can generate electrical charges sufficient to damage ES devices Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices Do not remove a replacement ES device from its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive material Immediately before removing the protective material from the leads of a replacement ES device touch the protective material to the chassis or circuit assembly into which the device will be installed CAUTION Be sure no power is applied to the chassis or circuit and observe all other safety precautions Minimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device General Soldering Guidelines 1 Use a grounded tip low wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500 F to 600 F Use an appropriate gauge of RMA resin core s
7. C35v MOD 0711 0712 0713 05 3 0062 in a p Qu Qui u 3 35 i d 4 B 4 Q3 n Y Y Y JY3P A 4 2 GNDR d Y3M A 4 9 CLKOUTP A 4 2 9 JCLKOUTM A 4 2 bd M RED A 4 2 9 1Y2P A o GNDG 9 Y2M A 4 8 732 9 D SDAA 1 2 0 Y1P A 1 2 GRN A 1 8 Y4M A 4s 2 GNDB R730 68 9 i 9 WW 9 gt HSYNC 1 2 9 C3 YOM A o Y3P B P Z y gt gt BLU A 4 2 2 8 100 je den 9 Y3M B 4 2 pem m detion mE DY ip JCLKOUTF B 4 2 9 T 7 VSYNC 4 2 E CLKOUTM B 4 2 bpt Zon READY sil 29708 L J s Y2P B 4 2 5168 Y8M B NL R728 9 O D SCLA 4 2 1 4 2 R729 o Y1M B 9 E gt ST DET 4 2 4 4 2 D 1YOP B 1 2 1 YOM B 4 2 m ujm u m m u o B5 5 5 5 a Dos iD m o 10 M FEFA TFAO FN qm QR SIR N T N JT 7 MEE ii J703 SMW200 11 9701 R606 9 3 3V PL fia DE 3V d 30 9 fCion REASY U601 5 30v 5VS AC1117S33T v 7 s 41 8 ion BE DY BD30 4L T1 DDC5V ms 9 3 3v0 1 8 S0714 7 es 4 99484 5VS 1 2 604 C504 M24C02 AMNET oPtion READY 1000 2 16V N N T el
8. To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board Use this technique only on IC connections 1 Carefully remove the damaged copper pattern with a sharp knife Remove only as much copper as absolutely necessary 2 carefully scratch away the solder resist and acrylic coating if used from the end of the remaining copper pattern 3 Bend a small U in one end of a small gauge jumper wire 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 technique involves the installation of a jumper wire on the component side of the circuit board 1 Remove the defective copper pattern with a sharp knife Remove at least 1 4 inch of copper to ensure that a hazardous condition will not exist if the jumper wire opens 2 Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern 3 Connect insulated 20 gauge jumper wire from the lead of the nearest component on one side of the pattern bre
9. the following technique should be used to remove and replace the IC When working with boards using the familiar round hole use the standard technique as outlined in paragraphs 5 and 6 above Removal 1 Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts 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 coating to the areas Small Signal Discrete Transistor Removal Replacement 1 Remove the defective transistor by clipping its leads as close as possible to the component body Bend into a U shape the end of each of three leads remaining on the circuit board Bend into a U shape the replacement transistor leads Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the U with long nose pliers to insure metal to metal contact then solder each connection 2 3 4 Power Output Transistor Device Removal Replacement 1 Heat and remove all solder from around the transistor leads Remove the heat sink mounting screw if so equipped Carefully remove
10. ABJ32229443 Cabinet Assembly L 1953 19 NEW PATTERN TEXTURE FOR 30919C0030U WHITE EAJ36380901 LCD Module TFT LM190E08 TLL2 DRIVER 19 0NCH 1280x1024 300CD COLOR 72 4 3 800 1 PT Sms 160 160 TLI T con LusemToshiba Source Gate lamp Heesung Diffuser x2 Prism x1 lamp wire 160mm depth 15 57 LG PHILIPS LCD or EAJ36380801 LCD Module TFT LM190E08 TLL1 DRIVER 19 01NCH 1280X1024 300CD COLOR 72 413 800 1 Sms 160 160 TLI T con Lusem Toshibe Sourcel Gate lamp Heesung Diffuser x2 L C211 lamp wire 160mm depth 15 9 LG PHILIPS LCD or EAJ36381001 LCD Module TFT LM190E08 TLL3 DRIVER 19 01NCH 12801024 30000 COLOR 72 4 3 800 1 P4 Sms 160 160 TLI T con Magna Toshiba Source Gate lamp Heesung Diffuser x21 213 x1 lamp wire 160mm depth 19 57 LG PHILIPS LCD 6304FHS014C LCD Module TFT HSD190ME13 D10 DRIVER 19INCH 1280X1024 300 0 COLOR 72 4 3 700 1 HANNSTAR DISPLAY CORPORATION or 6304FHS014B LCD Module TFT HSD190ME13 D10 700VS1 DRIVER 19INCH 1280X1024 90000 COLOR 72 4 3 700 1 HANNSTAR DISPLAY CORPORATION EAJ32176101 LCD Module TFT M190EG02 V4 ZBD DRIVER 19 0INCH 1280X1024 300CD COLOR 72 544 800 VS 1 SMS 160 160 2CH LVDS 4LAMP AU OPTRONICS CORP or EAJ32176102 LCD Module TFT M190EG02 V4 NON ZBD DRIVER 19 0INCH 1280X1024 90000 COLOR 72 5 4 800 VS 1 SMS 160 160 2CH LVDS 4LAMP NON ZBD AU OPTRONICS CORP ACQ33173101 Cover Assembly L1953S Baikal Cl model 19 Back Cover Assy Auo V4 Analog NT ACQ33173103 Cover Ass
11. Anti Glare POWER ON NORMAL ON ON ACTIVE Operating Mode Normally White Transmissive mode less than 39 W L19535 or GREEN 2 OPTICAL CHARACTERISTICS SUSPEND AMBER 2 1 Viewing Angle by Contrast Ratio gt 10 DPMS OFF OFF OFF OFF AMBER Left 60 min 70 Typ Right 460 min 70 POWER S W Off lessthan1W OFF Top 60 min 75 Typ Bottom 50 min 65 Typ 2 2 Luminance 230 min 300 Typ Full White pattern 0 70V 6500K 6 ENVIRONMENT 150 min Full White pattern 0 70V 9300K 6 1 Operating Temperature 10 C 35 C 50 F 95 F 75 min Ambient 6 2 Relative Humidity 10 80 Non condensing 2 3 Contrast Ratio 2000 1 DFC 6 3 MTBF 50 000 HRS with 9096 Confidence Lamp Life 50 000 Hours Min 3 SIGNAL Refer to the Timing Chart 3 1 Sync Signal 7 DIMENSIONS with TILT SWIVEL Type Separate Sync SOG L1753S Width 364 5 mm 14 35 3 2 Video Input Signal Depth 180 mm 7 09 1 Type R G B Analog Height 378 2 mm 14 89 2 Voltage Level 040 71 V a Color 0 0 0 Vp p L1953S b Color 7 0 0 467Vp p Width 402 mm 15 83 C Color 15 0 0 714Vp p Depth 180 mm 7 09 3 Input Impedance 75Q Height 407 5 mm 16 04 3 3 Operating Frequency 8 WEIGHT with TILT SWIVEL Horizontal 30 83kHz L1753S Vertical 56 75Hz Net Weight 9 8 kg 7 28 1 5 Gross Weight 4 4 kg 9 70 1 5 L1953S Net Weight 4 2 kg 9 26 1 5 Gross Weight
12. the transistor from the heat sink of the circuit board Insert new transistor in the circuit board 5 Solder each transistor lead and clip off excess lead 6 Replace heat sink 2 3 4 Diode Removal Replacement 1 Remove defective diode by clipping its leads as close as possible to diode body Bend the two remaining leads perpendicular y to the circuit board Observing diode polarity wrap each lead of the new diode around the corresponding lead on the circuit board Securely crimp each connection and solder it Inspect on the circuit board copper side the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder 2 3 Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake Securely crimp the leads of replacement component around notch at stake top Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures 2 3 Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or lift off the board The following guidelines and procedures should be followed whenever this condition is encountered At IC Connections
13. If waveform is no problem Check U303 U304 Check D302 D308 Drain waveform Or Trouble in U303 U304 CHECK T301 T302 21 WIRING DIAGRAM I 30P LAT UE EAD37414501 17 m EAD31413101 19 F 6631T20023J 6631900011H E w E 6631T20010E 22 EXPLORE VIEW Note Safety mark Ref No Part No ABJ32220401 ABJ32220402 EAJ34858001 EAJ32176801 EAJ36378001 EAJ36379501 EAJ36380701 EAJ36720102 EAJ36720101 ACQ33170001 ACQ33170003 ACQ33170005 EXPLODED VIEW PARTS LIST 17535 Description Cabinet Assembly L 1753 17 SILVER ANALOG WORLD WIDE SILVER Cabinet Assembly L 1753 17 NEW PATTERN TEXTURE FOR 30919C0018B BLACK ABJ32220444 Cabinet Assembly L 1753 17 NEW PATTERN TEXTURE FOR 30919C0029V WHITE LCD Module TFT HT170E01 300 ZBD DRIVER 17 0INCH 1280X1024 300CD COLOR 72 5 4 800 1 4MASK 5ms 160 160 BOE HYDIS TECHNOLOGY LCD Module TFT M170EG01 VD ZBD DRIVER 17 0INCH 1280X1024 90000 COLOR 72 5 4 800 1 SMS 160 160 2CH LVDS 4LAMP AU OPTRONICS CORP LCD Module TFT LM170E03 TLL1 DRIVER 17 0INCH 1280X1024 90000 COLOR 72 4 3 800 1 Sms 160 160 TLI T con Lusem Toshba Source Gate Diffuser 2 Prism 1 amp wire 135mm LG PHILIPS LCD LCD Module TFT LM170E03 TLL2 DRIVER 17 0INCH 1280X1024 300CD COLOR 72 4 3 800 1 P6 Sms 160 160 TLI T con Lusem Toshiba Source Gate Diffuser x2 Prism x1 lamp L1753T FS AWFOQ N LCD Module
14. LPL Plus White for Japan AAN32608903 Base Assembly ASSY Lx53 LM57B Lx53 PATTERN TEXTURE WHITE AAN32608901 Base Assembly ASSY Lx53 LM57B Lx53 PATTERN TEXTURE W W AAN32608906 Base Assembly ASSY Lx53 LM57B Lx53 PATTERN TEXTURE US 35509K0246D Cover MOLD ABS L1952 ABS L1952 NEW BODY 00 3520900038A Indicator LED amp PRE AMP LX52 PMMA NON LED LENS Lm MGJ37924303 Plate PRESS SPTE 0 3 LAMP SPTE SHIELD L1753 FOR LPL AUO CI MODULE ND LOCCAL PCB Assembly CONTROL A I LM72A BAIKAL II 17 INCH BLUE RD 53 SERIAL EBR36269401 Assembly Power POWER LM 57C BAIKAL II 100 EBR36999808 Main Total Assembly MAIN M I LM72B BAIKAL MSTAR ANALOG RD BAIKAL Il MSTAR ANALOG BN MGJ37924107 Plate PRESS SBHG 0 8 REAR SECC SHIELD LX53 FOR LPL AUO CI MODULE Analog ND local O MCK37398801 Cover MOLD ABS LX53 CI ABS Lx53 CI hinge cover ND local 4940900022A Knob MAIN 5KEY LX52 TACK KNOB EM FAB30006311 Screw 1FTF0403321 TH P 4MM 20MM MSWR3 FNM2 BEN MCK37400101 Cover MOLD POM Lx53 CI POM Lx53 CI hinge body ND local lio 8 MCK37399101 Cover MOLD ABS Lx53 CI ABS Lx53 CI hinge support ND LOCAL EBR37002601 26 EXPLODED VIEW PARTS LIST 19535 Note Safety mark Ref No Part No Description ABJ32229401 Cabinet Assembly L1953 19 NEW PATTERN TEXTURE FOR 30919C0019A SILVER ABJ32229402 Cabinet Assembly L1953 19 NEW PATTERN TEXTURE FOR 30919C0019B BLACK
15. PEARED U201 AT SIGNAL PINS AT MODE 12 YES TROUBLE IN CABLE OR LCD MODULE Waveforms 1 U201 96 97 2 U201 27 H SYNC 2 U201 28 V SYNC Tek 25 065258 oF ER EI Freg 35 14 Fe PS MHz Liver signal Amplitude M d qr Ch3 LEY Pond WT 11551535 qx Ausg 2004 MTB qa Aus 3004 iic b S1 18 4 TROUBLE IN DPM TROUBLE IN DPM CHECK PC PC IS NOT GOING INTO DPM OFF MODE CHECK R730 R731 CHECK U201 PIN 27 28 CHECK H V SYNC LINE SYNC PULSE a TROUBLE IN U201 Waveforms 3 R442 H Sync 3 R443 V Sync CITANT ng 2004 CRT aug 2004 bs 19 5 POWER NO POWER POWER INDICATOR OFF CHECK Fuse F101 OK M CHECK C101 Voltage AC110V gt 160Vdc AC220V gt 304Vdc Trouble in Fuse F101 Check BD101 CHECK U101 Pin6 Waveform Check U101 Pin7 9 10V Square wave Check D102 Come out Check Q101 Drain Trouble in Q101 Waveform Check D201 D202 Trouble in D201 D202 D203 Voltage CHECK 5V 12V Line 20 6 Raster NO Raster Lamp Off CHECK Check Scaler Output Main Board 3 3V Check U301 Pin2 Check Q301 Q302 5V Check U301 Pin6 VSEN Check the waveform of U301 Less than 3V Pin1 15 Check U301 Pin12 55 Check the waveform of U301 Less than 1V Pin2 3
16. POWER BOARD AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE CHECK J703 VOLTAGE PIN5 PIN6 5V CHECK U601 PIN2 VOLTAGE 3 3V CHECK 3 3V LINE OPEN CHECK NO PROBLEM CHECK KEY CONTROL CONNECTOR ROUTINE IS U201 PIN75 3 3V CHECK 3 3V LINE VOLTAGE CHECK U201 PIN 96 CHECK X TAL PULSE CHECK U201 Waveforms 1 u201 496 PIENE 25 065 s Ord Ach T I IN j f J f 414 Liner amplitude A T 3D YV amp 1 56 V Ch F FEB VW 16 2 NO RASTER OSD IS NOT DISPLAYED LIPS NO RASTER OSD IS NOT DISPLAYED CHECK POWER BOARD AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE J703 PIN5 PING 5V CHECK MICOM INV ON OFF PORT 1 CONFIRM BRIGHTNESS J703 PIN10 OSD CONTRL STATE 5V 2 CHECK MICOM DIM ADJ PORT CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE REPLACE CCFL LAMP IN THE LCD MODULE 207 3 NO RASTER OSD IS NOT DISPLAYED MSTAR NO RASTER OSD IS NOT DISPLAYED U201 PIN 16 75 3 3V CHECK U601 M U201 1 CHECK C509 C510 PIN96 97 SOLDERING CONDITION OSCILLATE AS 2 CHECK X501 14 31MHZ 3 TROUBLE IN U201 U201 PIN27 IS 48KHz H SYNC CHECK CONNECTION PIN28 IS 60 V SYNC LINE FROM D SUB TO IS PULSE AP
17. TFT LM170E03 TLL3 DRIVER 17 0INCH 1280X1024 90000 COLOR 72 4 3 800 1 P5 Sms 160 160 TLI T con Magna Toshiba Source Gate Diffuser x2 Prism x1 lamp wire 135mm LG PHILIPS LCD LCD Mogule TFT CLAATTOEAQTP Non ZBD DRIVER 1TINCH 1280X1024 300CD COLOR 72 4 3 700 1 Sms 16 7M color depth 160 160 lamp wire length 150mm CHUNGHWA PICTURE TUBES LTD LCD Module TFT LM190E08 TLL2 DRIVER 19 0INCH 1201024 300CD COLOR 72 4 3 800 1 160 160 TLI T con Lusem Toshiba Source Gate lamp Heesung Diffuser x2 P Cover Assembly L1753S Baikal Cl model 17 Back Cover Assy Auo VD Analog NT Local Cover Assembly L1753S Baikal Cl model 17 Back Cover Assy LPL TLL Analog NT Local Cover Assembly L1753S Baikal Cl model 17 Back Cover Assy BOE 5MS Analog NT Local ACQ33170008 Cover Assembly L1753S Baikal Cl model 17 L1753S Baikal model Back Cover Assy AUO 5ms Analog SVC label ACQ33170010 Cover Assembly L1753S Baikal CI model 17 117535 Baikal model B C ASSY LPL TLL Analog SVC LABLE ND Local ACQ33170013 Cover Assembly L1753S Baikal model 17 L1753S Baikal Cl model Back Cover Assy BOE 5ms SVC lable ND local ACQ33170015 Cover Assembly L1753S Baikal model 17 L1753S Baikal model Back Cover Assy CPT 5ms SVC lable ND local ACQ33170017 Cover Assembly L1753S Baikal Cl model 17 L1753S Baikal Cl model Back Cover Assy CPT 5ms ND local ACQ33170019 Cover Assembly L1753S Baikal Cl model 17 L1753S Baikal Back Cover Assy
18. Website http biz L Gservice com LG COLOR MONI TOR CHASSIS NO LM57A MODEL FLATRONL1753S L1753S FS A QP FLATRONL1953S L1953S FS A QP Same model for Service CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL a Y m v e 8 apply the MSTAR Chip CONTENTS SPECIFICATIONS 2 SERVICE OSD Per Et I T a ER os diss 17 PRECAUTIONS eere rennen nenne nnne 3 TROUBLESHOOTING GUIDE 18 TIMING CHART I r nennen 7 WIRING 24 DISASSEMBLY pi D Serien 8 BLOCK DIAGRAM MES s DISCRIPTION OF BLOCK DIAGRAM 13 REPLACEMENT PARTS LIST 27 ADJUSTMENT 16 SCHEMATIC 31 SPECIFICATIONS 1 LCD CHARACTERISTICS 4 Max Resolution Type TFT Color LCD Module D sub Analog 1280 x 1024 75Hz Active Display Area 17 inch L1753S 19 inch L1953S 5 POWER SUPPLY Pixel Pitch 0 264 x 0 264 V 117535 5 1 Power AC 100 240V 50 60Hz 0 6A 0 294 H x 0 294 V L1953S Color Depth bits 16 2M colors 5 2 Power Consumption 396 x324 V i7sD Lresss MODE EI Electrical Interface LVDS less than 35 W L1753S BLUE Surface Treatment Hard coating 3H
19. ak to the lead of the nearest component on the other side Carefully crimp and solder the connections CAUTION Be sure the insulated jumper wire is dressed so the it does not touch components or sharp edges TIMING CHART Sync Dot Total Video Sync Front Blanking Polarit Clock Frequency Period Active Duration Porch Time Resolution iuh HN E Tim A D C B V Lines 0 V nes Vines as H Pixels 640 x 480 V Lines 500 V Lines 0317 6 _ viLines oo 1 3 a REGE s Wes 88 9 3 vmes s Me _ V Lines 75 062 870 2a 2m Am soc 16 WM ms xx _ WA 3d _ 1024 x 768 1024 x 768 1152 x 870 1280 x 1024 1280 x 1024 A MN NON NE m s NM EN M E s m NW uud O s 725 NN E M Lu NN WEE I s DISASSEMBLY Set 1 2 Soft pad on the table Monitor on the pad 3 Pull up the stand part Hold the head amp stand base and then Twist Stand until Click 4 2 5 Separate head amp stand 6 8 Remove the screws 9 1 Pull the front cover upward 2 Then let the all latches are separated 3 1 3 2 3 Put the front face down Disassemble back cover DISASSEMBLY Stand In case of Latch 4 1 1 b Push the f
20. c POLS 9199 Ory 8v 17574 90vQ ZECA WV c al lt LEY 1 7 1 Lto sm A39 dSIl E ror ES 2 16 4901 E 8199 Ld s LM 90v2 Lue iS ccc 2299 T OdN dzS1 loca OLAVE reel v 66AV8 66AV8 cord E coca 2 voca vova Ld t OdN dZS1 AA ES T AVN 1 6 Ag rae 0192 rid 60v EX ezeo T E E 9081 T z 9i9 dS 1 1 z 5 ANZ coro 99 x 5 J J ftecaz MAL dZZZ deze LL reel 60v2 lt reet 9201 1 9053 m 21 09118 1 I T Svp ST vli Loca LOv3 _ _ cec d T d lt ZLS 9i E Qv 8 L 6 T 5059 9201 S PN razz T 11 6 g 5 AA v c 95 E COCH reg M9 dSl LOCEL dvzz Ory T rnszz dZZZ ere 16 Appay SEE SZEN 2 LOvy 50 9 T PLEI 06 S8Nd OdN dZSl dns reel 1 2 Lava I A ae seen Tags sie ga cora 4 L rYLS ZOL6 dezv y CU i LC M 91 2 Sv
21. embly L1953S Baikal Cl model 19 Back Cover Assy LPL TLL Analog NT ACQ33173107 Cover Assembly L1953S Baikal model 19 L1953S Baikal Cl Back Cover Assy HSD ND LOCAL ACQ33173109 Cover Assembly L1953S Baikal Cl model 19 L1953S Baikal Cl Back Cover Assy AUO VD SVC LABEL ND LOCAL ACQ33173111 Cover Assembly L1953S Baikal model 19 L1953S Baikal Back Cover Assy LPL CI MODULE SVC LABLE ND LOCAL ACQ33173113 Cover Assembly L1953S Baikal Cl model 19 L1953S Baikal Cl Back Cover Assy HSD SVC LABLE ND LOCAL ACQ33173115 Cover Assembly L1953S Baikal model 19 L1953S baikal Back Cover Assy LPL plus module White for Japan AAN32608903 Base Assembly ASSY Lx53 LM57B Lx53 PATTERN TEXTURE WHITE AAN32608901 Base Assembly ASSY Lx53 LM57B Lx53 PATTERN TEXTURE W W AAN32608906 Base Assembly ASSY Lx53 LM57B Lx53 PATTERN TEXTURE US 050 35509K0246D Cover MOLD ABS L1952 ABS L1952 NEW BODY 00 3520900038A Indicator LED amp PRE AMP LX52 PMMA NON LED LENS oo MGJ37924303 Plate PRESS SPTE 0 3 LAMP SPTE SHIELD L1753 FOR LPL AUO CI MODULE ND LOCCAL o EBR37002601 Assembly CONTROL A I LM72A BAIKAL 17 INCH BLUE RD 53 SERIAL EM EBR36269401 PCB Assembly Power POWER LM 57C BAIKAL II 10 EBR36999808 Main Total Assembly MAIN M I LM72B BAIKAL II MSTAR ANALOG RD BAIKAL Il MSTAR ANALOG lio g MGJ37924107 Plate PRESS SBHG 0 8 REAR SECC SHIELD LX53 FOR LPL AUO CI MODULE Analog ND
22. er This part function is for transfer the input AC voltage to a DC voltage through a bridge rectifier and a bulk capacitor Energy Transfer This part function is for transfer the primary energy to secondary through a power transformer 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 dc output stabilized and also the over power protection is also monitor by this part Photo Coupler isolation This part function is to feed back the DC output changing status through a photo transistor to primary controller to achieve the stabilized DC output voltage Signal collection This part function is to collect the any change from the DC output and feed back to the primary through photo transistor 243 ADJUSTMENT Windows EDID V1 0 User Manual 2 EDID Read amp Write 1 Run WinEDID exe Operating System MS Windows 98 2000 XP Port Setup Windows 98 gt Don t need setup Windows 2000 XP gt Need to Port Setup This program is available to LCD Monitor only WinEDID 1 0 CS 1 Port Setup a Copy UserPort sys file to c WINNT system32 drivers folder ABCDEFG b Run Userport exe UserPort Tomas Franzon 2000 3 REMOVE 2 Edit Week of Manufacture Year of Man
23. er ADC convertor TMDS receiver and LVDS transmitter The Scaler gets the video signal converted analog 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 inverter converts from DC12V to AC 700Vrms and operates back light lamps of module 3 MICOM Part This part is include video controller part And this part consists of EEPROM IC which stores control data Reset IC and the Micom The Micom distinguishes polarity and frequency of the H V sync are supplied from signal cable The controlled data of each modes is stored in EEPROM 12 LIPS Board Block Diagram EMI INPUT RECTIFIER SWITCHING TOOKHE OUTPUT RECTIFIER LINE COMPONENTS AND FILTER TRANSFORMER AND FILTER 100 240V SIGNAL PWM CONTROL PHOTO COUPLER COLLENT CIRCUIT lt ISOLATION t ION PRIMARY SECONDARY 12V INVERTER CIRCUIT High Voltage Operation description_LIPS EMI components This part contains of EMI components to comply with global marketing EMI standards like FCC VCCI CISPR the circuit included a line filter across line capacitor and of course the primary protection fuse Input rectifier and filt
24. local 0 MCK37398801 Cover MOLD ABS LX53 ABS Lx53 CI hinge cover ND local 4940900022 Knob MAIN 5KEY LX52 TACK KNOB FAB30006311 Screw 1FTF0403321 TH P 4MM 20MM MSWR3 FNM2 EN MCK37400101 Cover MOLD POM Lx53 CI POM Lx53 CI hinge body ND local MCK37399101 Cover MOLD ABS Lx53 CI ABS Lx53 CI hinge support ND LOCAL 26 SCHEMATIC DIAGRAM 1 SCALER a 2 2 2 os gt R508 13 gt gt x 3 3vD 4 2 A s uu b R510 ze R518 470 0 100 ST DET 4 2 9 p gt CO INVON 4 2 P512 10K SHORT CHKl14 2 9 ca35vS 1 2 u nx 1 8 0 1 2 9 aa E uf af ut iD aun 3 3 3 C512 I 10uF 16V l a S 88 E3 X901 wo mau Te 9 he svsti 2 a al Ban 14 318MHz gt Qi q m 8 8 8 g 9 n lt lt lt a y n I 0o o I DO X Oo NINIS O as a zcEsssa3s fais as ola L 3 3vPLI1 8 m l 1 OE dH ay dod 1 1151 3 3v PL 4 2 E ANN PP
25. n READY Je ion READY REFM VDDP_3 L L 1 1uF REFP VA3M gt Y3M A 4 8 HSYNCO LVA3P 13 3V PL 4 2 HSYNC 1 2 gt Y3P A 1 2 VSYNCO MODE 1 VSYNC 1 2 Ter 40520 _ GND_4 MODE 0 ve M24COBWMNGT m DDCA SDA RS232 TX VDDC_2 y xl Oy D 00 S D R520 33 D SDAA 4 2 t lt a s 8 i i z 5 o Oo Q O Qu z 1 ino mn in n n gt gt a o L qa o 215500 iii 12162 SDATAL 9 mA o S lt 2 O O OJ OIZ Z ox aj o R524 D SCLA 4 2 H gt 9 ala y B Q 7 c n NIX on l E QO H aja L L n ij 1 zn ojo nl lt o 5 3 3V PL 4 2 a 1 4 25 SST25VF020 204C SAE MODON 4 2 cszr 11 8VD 4 2 SDO 4 7K 17 19 1 2 J SCK 1 SDI 4 7K R519 w Bh 5g Kod U m 1 uu 2 POWER amp WAFER SVS 1 5vs 1 a 2 1 MODON J707 FW10039 30 J701
26. ncorrect polarity installation of electrolytic capacitors may result in an explosion hazard d Discharging the picture tube anode Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device DVM FETVOM etc equipped with a suitable high voltage probe Do not test high voltage by drawing an arc Discharge the picture tube anode only by a first connecting one end of an insulated clip lead to the degaussing or kine aquadag grounding system shield at the point where the picture tube socket ground lead is connected and then b touch the other end of the insulated clip lead to the picture tube anode button using an insulating handle to avoid personal contact with high voltage Do not spray chemicals on or near this receiver or any of its assemblies Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable non abrasive applicator 1096 by volume Acetone and 90 by volume isopropyl alcohol 9096 9995 strength CAUTION This is a flammable mixture Unless specified otherwise in this service manual lubrication of contacts in not required Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped Do not apply AC power to this instrument and or any of its electrical assemblies
27. older composed of 60 parts tin 40 parts lead Keep the soldering iron tip clean and well tinned Thoroughly clean the surfaces to be soldered Use a mall wire bristle 0 5 inch or 1 25cm brush with a metal handle Do not use freon propelled spray on cleaners Use the following unsoldering technique a Allow the soldering iron tip to reach normal temperature 500 F to 600 F Heat the component lead until the solder melts Quickly draw the melted solder with an anti static suction type solder removal device or with solder braid CAUTION Work quickly to avoid overheating the circuitboard printed foil Use the following soldering technique a Allow the soldering iron tip to reach a normal temperature 500 F to 600 F First hold the soldering iron tip and solder the strand against the component lead until the solder melts b Quickly move the soldering iron tip to the junction of the component lead and the printed circuit foil and hold it there only until the solder flows onto and around both the component lead and the foil CAUTION Work quickly to avoid overheating the circuit board printed foil Closely inspect the solder area and remove any excess or splashed solder with a small wire bristle brush IC Remove Replacement Some chassis circuit boards have slotted holes oblong through which the IC leads are inserted and then bent flat against the circuit foil When holes are the slotted type
28. only a plastic screwdriver to protect yourself from shock hazard during service operation A WARNING BE CAREFUL ELECTRIC SHOCK f you want to replace with the new backlight CCFL or inverter circuit must disconnect the AC adapter because high voltage appears at inverter circuit about 650Vrms burn or take fire Leakage Current Hot Check Circuit AC Volt meter Good Earth Ground such as WATER PIPE To Instrument s CONDUIT etc exposed METALLIC PARTS 1 5 Kohm 10W Handle with care wires or connectors of the inverter circuit If the wires are pressed cause short and may SERVICING PRECAUTIONS CAUTION Before servicing receivers covered by this service manual and its supplements and addenda read and follow the SAFETY PRECAUTIONS on page 3 of this publication NOTE f unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication always follow the safety precautions Remember Safety First General Servicing Precautions 1 Always unplug the receiver AC power cord from the AC power source before a Removing or reinstalling any component circuit board module or any other receiver assembly Disconnecting or reconnecting any receiver electrical plug or other electrical connection Connecting a test substitute in parallel with an electrolytic capacitor in the receiver CAUTION A wrong part substitution or i
29. our latches on the bottom to the outside and Separate Stand Body amp Base Reference the 1 2 2 After finished repair necessarily push 4 Latches to inside for restoration 240 2 DISASSEMBLY Stand In case of Latch 2 1 2 Hold the stand body Confirm two latch of right and left 3 4 Push the latch to the inside Push the base to the opposite direction 5 Confirm the condition of separation 232 BLOCK DIAGRAM UOISISA AS Joydepy JOMOd Val 8059 WOtzid33 IO13uoO y use A g 5 u Ie151ig 115 AS Q IAG AST SCAT SCAT d 4 9 qns q 10 BLOCK DIAGRAM POWER yoeqpss 119119 dwe SUBJ 1 1 1 1 U01 99 01d 1 4 yoeqpes4 9l 11109 J49MOd 5 33 19 9 dH3MOd 49149Au09 oa 9a J9 es pueog ulen 92A DESCRIPTION OF BLOCK DIAGRAM 1 Video Controller Part This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock The pixel clock for each mode is generated by the PLL The range of the pixel clock is from 25MHz to 135MHz This part consists of the Scal
30. ufacture Serial Number a Input User Info Data b Click Update button C Click Write button m c Remove all default number d Add 300 3FF UU SEE Click Start button f Click Exit button 14 SERVICE 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 mode on off e R G B 9300K Allows you to set the R G B 9300K value manually f R G B 6500K Allows you to set the R G B 6500K value manually 9 h H G B Offset Allows you to set the R G B Offset value manually Analog Only H G B Gain Allows you to set the R G B Gain value manually Analog Only i MODULE To select applied module Video Signal Generator Control Line Power inlet required Power Select Switch 110V 220V E V Sync On Off Switch Switch must be ON Figure 1 Cable Connection rd TROUBLESHOOTING GUIDE 1 NO POWER NO POWER POWER INDICATOR OFF CHECK
31. unless all solid state device heat sinks are correctly installed 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 b 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 can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity 1 Immediately before handling any semiconductor component or semiconductor equipped assembly drain off any electrostatic charge on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly
Download Pdf Manuals
Related Search
l1753s l175s