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All manuals and user guides at all-guides.com E-mail: http://www.LGEservice.com/techsup.html COLOR MONITOR SERVICE MANUAL MODEL: L1934S (W1934S-BNT/SNT.AxxQQPH. For CMO MODULE, AxxVQPH. For AUO MODULE xx:sales marketing, Mstar scaler) CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
All manuals and user guides at all-guides.com PRECAUTION WARNING WARNING FOR THE SAFETY-RELATED COMPONENT. BE CAREFUL ELECTRIC SHOCK ! • There are some special components used in LCD monitor that are important for safety. These parts are • If you want to replace with the new backlight (CCFL) or marked on the schematic diagram and the inverter circuit, must disconnect the AC adapter...
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All manuals and user guides at all-guides.com SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this 9. Use with this receiver only the test fixtures specified in service manual and its supplements and addenda, read this service manual. and follow the SAFETY PRECAUTIONS on page 3 of this CAUTION: Do not connect the test fixture ground strap publication.
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All manuals and user guides at all-guides.com General Soldering Guidelines Replacement 1. Use a grounded-tip, low-wattage soldering iron and 1. Carefully insert the replacement IC in the circuit board. appropriate tip size and shape that will maintain tip 2. Carefully bend each IC lead against the circuit foil pad and solder it.
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All manuals and user guides at all-guides.com Circuit Board Foil Repair At Other Connections Excessive heat applied to the copper foil of any printed Use the following technique to repair the defective copper circuit board will weaken the adhesive that bonds the foil pattern at connections other than IC Pins.
All manuals and user guides at all-guides.com TIMING CHART Video Total Sync Front Back Sync Active MODE H / V Frequency Period Duration Porch Porch Resolution Polarity Clock Time ( E ) ( C ) ( D) ( B ) ( A ) H(Pixels) 31.469...
All manuals and user guides at all-guides.com DISASSEMBLY-Set Put the monitor on a soft flat. Pull out the hinge cover as arrow direction. Remove the four screws. Put the front cover upward. Then let the all latches are separated. Put the front face down, disassembly back cover. Pull the key board out of bezel.
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All manuals and user guides at all-guides.com #8 Disassembly the bezel. Disassembly the connector and screw. Remove the 2 screws. Disassemble the LVDS cable Main board and power board The panel...
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All manuals and user guides at all-guides.com DISASSEMBLY-Stand Pull the Base 2 ea Latches to inside until losing elasticity. Consequently, pull the stand body directly. Separate Stand Body & Stand Base. Fix Stand Base & Stand Body. Remove the three screws. Separate the hinge and stand.
All manuals and user guides at all-guides.com 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.
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All manuals and user guides at all-guides.com LIPS Board Block Diagram Operation description_LIPS 1. 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. 2.
④ input serial NO. ② choose panel type For LG , the number of SN is 12. So input 12 digits,then EDID data will be send to the monitor from PC. ③ if you get the right panel type, the you can go to the...
All manuals and user guides at all-guides.com SERVICE MODE 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) CLEAR ETI: To initialize using time.
All manuals and user guides at all-guides.com TROUBLESHOOTING GUIDE 1. NO POWER No Power (Power Indicator Off) Check the Adapter/Inverter Please reinsert and section make sure the AC of 90-264v is normal Measure C423 (+) Check CN404 or replace =1.8V Q409, Q410, and U404 U404 PIN2=3.3V Check X401 oscillate...
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All manuals and user guides at all-guides.com 2. NO RASTER (OSD IS NOT DISPLAY)-LIPS No Raster (OSD Is Not Displayed) Check power board and find out a Check U404 short point as penning each power PIN 3 =5V? line Check U404 Check U404 Check C426,C427 PIN 2 =3.3V?
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All manuals and user guides at all-guides.com 2. NO RASTER (OSD IS NOT DISPLAY)-MSTAR No Raster (OSD Is Not Displayed) SCALER PIN1,2 1. Check C411 C412 OSCILLATES AS 2. Check X401 14.318MHZ? 3. TROUBLE IN SCALER IC CHECK CONNECTION SCALER IC LINE FROM D-SUB TO PIN16 H SYNC ? SCALER...
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All manuals and user guides at all-guides.com 4. TROUBLE IN DPM TROUBLE IN DPM SCALER IC PIN16 H SYNC? CHECK H/V SYNC LINE PIN17 V SYNC? TROUBLE IN CABLE OR LCD MODULE...
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All manuals and user guides at all-guides.com 5. POWER No Power (Power Indicator Off) Check AC line Check AC line volt Check F901, BD901 Check the voltage of C905(+) Check start voltage Check D905, R934, for the pin1 of R928,IC901 IC901 Check IC901 pin 7 Check D902,C907...
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All manuals and user guides at all-guides.com 6. RASTER NO Raster (Lamp Off) Check C811 (+) Check power section =12V Check Interface section or Check ON/OFF main board signal Check Q801 Q802 Q803 CheckIC801 pin ZD801 2=5V? Check IC801 Check IC801 pin 5/pin6 Pin1/pin15 have the output of sawtooth wave at short time...
All manuals and user guides at all-guides.com EXPLODED VIEW...
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All manuals and user guides at all-guides.com EXPLODED VIEW PARTS LIST Ref. No. TPV part no. LGE part no. Description A34G0563ABNA1B0100 ABJ55934301 Bezel (Front cabinet) Silver color A34G0563 B6A1B0100 ABJ55934302 Bezel (Front cabinet) Black color KEPC7QG8 EBU51011201 KEY BOARD include control wire 750GLM90A1A12N COV30013601 CMO PANEL M190A1-L0A C1 NB...
All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST DATE: 2008. 01. 27 LOC. NO. PART NO. DESCRIPTION MAIN BOARD CAPACITORS C427 067G 3151014KV EC 105℃ CAP 100UF M 25V C426 067G 3151014KV EC 105℃ CAP 100UF M 25V C423 067G 3151014KV EC 105℃...
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All manuals and user guides at all-guides.com C104 065G0402509 31 CHIP 5pF 50V NPO C108 065G0402509 31 CHIP 5pF 50V NPO C111 065G0402509 31 CHIP 5pF 50V NPO DIODEs ZD103 093G 39S 34 T UDZSNP5.6B ROHM ZD104 093G 39S 34 T UDZSNP5.6B ROHM D402 093G3004 3...