Daewoo L510B1 service manual No Raster

Page 19

3. No Raster

Check the

output of Q2 or

pin 3 of U3.		< 2.5


	> 2.5

Is 12V		No
plugged in pin 1
of CN4A(power
board)?
	Yes

Is the output of	No
inverter correct?
inverter correct?

Yes

Replace a LCD panal.

Trouble in Q6 or pin 3 of -com.

Check the output of D811(power board).

Replace the inverter.

17

Image 19

Contents XGA Color Monitor Contents Safety Check Safety PrecautionsFire & Shock Hazard Terms in the manual General Safety InformationSymbols in the manual Symbols as marked on equipmentGeneral Servicing Precautions Servicing PrecautionsGeneral Soldering Guidelines Electrostatically Sensitive ES DevicesPower IC, Transistor or Devices Removal/Replacement IC Removal/ReplacementReplacement Small-Signal Discrete Transistor Removal/ReplacementTechnical Information Diode Removal/ReplacementAbbreviations General InformationPin Signal PIN ConnectorControl Panel Operation and AdjustmentHot Key Key Process Adjustment Procedure OSD Functions Adjust the width horizontal size of the screen imageSelf Diagnosis Standard Check point Alignment ProcedureAbnormal mode detect Troubleshooting HintsTrouble in Power on No Raster One color is missing One color is missingNo Video Black Power Problem Mainbord Control Block DiagramPCB Layout Control PCB Component Side Page Schematic Diagram Smps Section Exploded View & Mechanical Parts List Information of Part Description Important Safety NoticePART-NAME PART-DESC Electrical Parts ListLine Across FB2 Carbon Film