Related Manuals for Daewoo Lucoms CML-710M
Summary of Contents for Daewoo Lucoms CML-710M
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Page 1: Service Manual
Service Manual LCD COLOR MONITOR Model : CML-710M DAEWOO LUCOMS CO., LTD. http://www.lucoms.com . 2004... -
Page 2: Table Of Contents
CONTENTS SAFETY PRECAUTIONS GENERAL SAFETY INFORMATION SERVICING PRECAUTIONS TECHNICAL INFORMATION GENERAL INFORMATION PIN CONNECTOR CAUTIONS FOR ADJUSTMENT AND REPAIR OPERATION & ADJUSTMENT ALIGNMENT PROCEDURE TROUBLESHOOTING HINTS BLOCK DIAGRAM SCHEMATIC DIAGRAM PCB PATTERN INFORMATION OF PART DESCRIPTION ELECTRICAL PARTS LIST... -
Page 3: Safety Precautions
SAFETY PRECAUTIONS CAUTION: No modifications of any circuits should be attempted. Service work should be performed only after you are thoroughly familiar with all of the following safety checks and servicing guidelines. Safety Check Care should be taken while servicing the inverter that generates the high voltage to lighten CCFL of the LCD panel. -
Page 4: General Safety Information
GENERAL SAFETY INFORMATION Terms in the manual CAUTION Statements identify conditions or practices that could result in damage to the equipment or other property. WARNING Statements identify conditions or practices that could result in personal injury or loss of life. Terms as marked on equipment CAUTION Statements indicate a personal injury hazard not immediately accessible as one reads the... -
Page 5: Servicing Precautions
SERVICING PRECAUTIONS CAUTION: Before servicing instruments covered by this service manual, its supplements, and addendum, please read and follow the SAFETY PRECAUTIONS of this manual. NOTE: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 1 of this manual, always follow the safety precautions. Remember: Safety First. - Page 6 SERVICING PRECAUTIONS Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components are commonly called Electrostatically Sensitive (ES) Devices. The typical examples of ES devices are integrated circuits, some field-effect transistors, and semiconductor “chip”...
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Page 7: Small-Signal" Discrete Transistor Removal/Replacement
SERVICING PRECAUTIONS FIGURE 1. USE SOLDERING IRON TO PRY LEADS IC Removal/Replacement Some utilized chassis circuit boards have slotted (oblong) holes through which the IC leads are inserted and then bent flat against the circuit foil. When holes are slotted, the following technique should be used to remove and replace the IC. - Page 8 SERVICING PRECAUTIONS Diode Removal/Replacement 1. Remove defective diode by clipping its leads as close as possible to diode body. 2. Bend the two remaining leads perpendicularly to the circuit board. 3. Observing diode polarity, wrap each lead out of the new diode around the corresponding lead on the circuit board.
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Page 9: Technical Information
TECHNICAL INFORMATION Panel Size 17-inch (43.2 cm) diagonal Pixel Pitch 0.264 x 0.264 mm Viewing Angle 70°(Right/Left) 60°(up), 60°(down) Contrast Ratio 400:1 contrast ratio (typ) Brightness 250cd/m brightness (typ) Color Filter RGB vertical stripe Synchronization Horizontal 30 - 80 KHz Vertical 56 - 77 Hz Video Bandwidth... -
Page 10: General Information
GENERAL INFORMATION This TFT LCD monitor automatically scans all horizontal frequencies from 30KHz to 80KHz, and all vertical frequencies from 56Hz to 77Hz(15”- 50KHz to 75KHz). This TFT LCD monitor supports IBM PC, PC/XT, PC/AT, personal System/2 (PS/2), Apple Macintosh, and compatible users crisp text and vivid color graphics display when using the following graphics adapters : (VGA, Super VGA, VESA, XGA, SXGA and Apple Macintosh Video Card). -
Page 11: Operation & Adjustment
OPERATION AND ADJUSTMENT << L710M >> Control Panel POWER Indicator POWER Shows both normal operation and Switches the monitor on and power management status with off. power indicator light. /VOLUME Moves cursor to the right or Moves cursor to the left or high low window in the OSD window in the OSD window and window and increases the value... - Page 12 OPERATION AND ADJUSTMENT Key Process MENU U T L TY 1280X1024 U T L TY SELECT SELECT EXIT EXIT U T L TY S H A R P N E S S SH A R P N E S S EXIT...
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Page 13: Hot Key
OPERATION AND ADJUSTMENT HOT KEY When there is no OSD, if you press this AUTO AUTO button, you can use the best AU TO T R AC KIN G display performance fit for a current mode. When there is no OSD, if you press this BRIGHTNESS / BRIGHTNESS button, you can adjust the brightness directly. -
Page 14: Adjustment Procedure
OPERATION AND ADJUSTMENT Adjustment Procedure Is the H.Size Adjust the CLOCK proper? control. Perform the AUTO Is the POSITION noise displayed on the screen? Perform the AUTO TRACKING Is the noise displayed on the screen yet? Adjust the CLOCK FINE until the screen is cleared. - Page 15 OPERATION AND ADJUSTMENT OSD Functions (L710M) ICON CONTROL FUNCTIONS Select language for OSD (6 languages). LANGUAGE CLOCK Adjust the width (horizontal size) of the screen image. Sharpen the focus by aligning the illuminated pixels and adjust until the screen image looks focused, crisp and sharp. Adjusting the CLOCK FINE CLOCK after the...
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Page 16: Self Diagnosis
OPERATION AND ADJUSTMENT Self Diagnosis If there is no image, the Self Diagnosis screen will be displayed. Self Diagnosis function checks if the status of the monitor screen is No Signal, Out of range or None support. “No Signal” screen is displayed when the D-Sub signal connector is not connected or the status of the monitor is on DPMS mode. -
Page 17: Alignment Procedure
ALIGNMENT PROCEDURE Standard Check point 1. Power source : 100 - 240Vac, 50/60Hz. 2. Aging : Take at least 20 minutes warm-up time. 3. Signal • Video input : Analog 0.7Vpp 75Ω terminal positive polarity • Synchronizing : acceptable negative or positive at TTL level •... -
Page 18: Troubleshooting Hints
TROUBLESHOOTING HINTS (L710M) 1. Abnormal mode detect Abnormal mode detect Is a input Trouble in the H-sync H-sync of Scaler(pin126, input circuit. U6) correct? Trouble in Scaler(U6). - Page 19 TROUBLESHOOTING HINTS 2. Trouble in Power on Trouble in Power on Is the Refer to No video Power LED toggled or No raster. between on and off? Check if the power switch Is the power is on position and cord well Connect the power connected? cord correctly.
- Page 20 TROUBLESHOOTING HINTS 3. No Raster No Raster Check the Trouble in Q1 or output of Q1 or pin 15 of -com. pin 15 of U14. high Is 12V plugged in pin 5 Check the output of of CN2(power 12V line(power board). board)? Is the output of Replace the inverter.
- Page 21 TROUBLESHOOTING HINTS 4. One color is missing One color is missing Check the output Is the OSD color signal of Scaler. normal? Is the input Check the video signal signal normal? cable or R,G,B con-ass’y. Are the R,G,B Digital values Check the ambient (every eight bits) correct circuit of Scaler.
- Page 22 TROUBLESHOOTING HINTS 5. No Video No Video Has display image Next page. only white? Check if the CON3 wafer is Connection trouble. well connected at the LCD panel. Check U2, its ambient Is pin 5, 6, 7, 8 circuit and pin 14 of U8. of U2 5V? Check interface scalier pin LAV (0P~3P, 0M~3M)
- Page 23 TROUBLESHOOTING HINTS 5-1. No Video Black Is OSD normal? 3. No raster Set the contrast Is the contrast up to Max. at its maximum? Is the output Is the input of of Scaler correct? Scaler correct? Replace the main board Check If (or replace Scaler).
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Page 24: Power Problem
TROUBLESHOOTING HINTS 6. Power Problem Power problem Is the power Check if the power cord well cord is correctly connected? connected. Check +3.3V, +5V, +12V of CN2. Check the main board. -
Page 25: Block Diagram
BLOCK DIAGRAM... -
Page 26: Schematic Diagram
SCHEMATIC DIAGRAM(L710M) - Page 27 SCHEMATIC DIAGRAM...
- Page 28 SCHEMATIC DIAGRAM...
- Page 29 SCHEMATIC DIAGRAM...
- Page 30 SCHEMATIC DIAGRAM...
- Page 31 SCHEMATIC DIAGRAM...
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Page 32: Pcb Pattern
PCB PATTERN... - Page 33 PCB PATTERN...
- Page 34 PCB PATTERN...
- Page 35 PCB PATTERN...
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Page 36: Information Of Part Description
INFORMATION OF PART DESCRIPTION Important Safety Notice Components identified with the International Symbol have special characteristics important for safety. When replacing any components, use only manufacturer’s specified parts. Abbreviation of Description RESISTOR Description Tolerance ± 1% ± 5% ± 10% ±... -
Page 37: Electrical Parts List
12507HS-30+FI-X30H+1571#30=120 9979617103 LCD PANEL LM170E01-A LIPS DDML1701— LCD INVERTER + POWER DML-1701 YF010 99720226A0 COVER FRONT AS CML-710M C/FRONT AS 00010 9972022600 COVER FRONT HB-HIPS GY-340A (SILVER SPRAY) 00010 22211102H4 RESIN HIPS CH HR-1360 GY-340A G7851 00020 223126GY03 PAINT ACRYL... - Page 38 ELECTRICAL PARTS LIST PART-CODE PART-NAME PART-DESC HCFK104ZBA C CHIP CERA 50V Y5V 0.1MF Z 1608 HCFK104ZBA C CHIP CERA 50V Y5V 0.1MF Z 1608 HCFK104ZBA C CHIP CERA 50V Y5V 0.1MF Z 1608 HCFK104ZBA C CHIP CERA 50V Y5V 0.1MF Z 1608 HCFK104ZBA C CHIP CERA 50V Y5V 0.1MF Z 1608...
- Page 39 ELECTRICAL PARTS LIST PART-CODE PART-NAME PART-DESC DKDS226RTK DIODE CHIP KDS226(RTK) DKDS226RTK DIODE CHIP KDS226(RTK) DKDS226RTK DIODE CHIP KDS226(RTK) HFFHH1M601 COIL CHIP BEAD HH-1M3216-601JT HFFHH1M601 COIL CHIP BEAD HH-1M3216-601JT HFFHH1M601 COIL CHIP BEAD HH-1M3216-601JT HFFHH1M601 COIL CHIP BEAD HH-1M3216-601JT HFFHH1M601 COIL CHIP BEAD HH-1M3216-601JT HFFHH1M601 COIL CHIP BEAD...
- Page 40 PLCC 1.27PT 44PIN(22*22) 1CAT24WC08 IC EEPROM CAT24WC08 J 1MST9111— IC LCD CONTROLLER MST9111 Z4010 PCMPJ0J268 PCB MAIN ODD SHAPE AS CML-710M Z5010 PCMPJRJ268 PCB MAIN RADIAL AS CML-710M CEXF1C101C C ELECTRO 16V RUS 100MF (6.3X11) TP CEXF1C101C C ELECTRO 16V RUS 100MF (6.3X11) TP...
- Page 41 16V RUS 470MF (10X12.5)TP CEXF1C221C C ELECTRO 16V RUS 220MF (8X11.5) TP CEXF1C101C C ELECTRO 16V RUS 100MF (6.3X11) TP Z6010 PCMPJAJ268 PCB MAIN AXIAL AS CML-710M DDZ5R1B—- DIODE ZENER DZ-5.1B DDZ5R1B—- DIODE ZENER DZ-5.1B DDZ5R1B—- DIODE ZENER DZ-5.1B DDZ5R1B—- DIODE ZENER DZ-5.1B...
- Page 42 TT2 BIN 4X8 MFZN YST50 9972925300 STAND REAR L710 HB-HIPS 00010 22211102H5 RESIN HIPS CH HR-1360 GY-8105A G4646 Z1040 PCPKCPJ269 PACKING AS CML-710M YP001 9975433002 LABEL RATING PE 710M YP010 9972610300 HANDLE 66 SHEET YP020 9978215400 BAG POLY PEHD T=0.5*600*850...
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