Daewoo L510B1 service manual No Video

Page 21

5. No Video

Has display image

only white?

Yes

Check if the CN5 wafer is well connected at

the LCD panel.

Yes

No

No

Next page.

Connection trouble.

Is pin 1

No

of Q6 3.3V?

 

Yes

Check the output of scalier

(pin 71, 72, 73, 74, 75) and soldering of CN5.

Check Q6, its ambient circuit and pin 27 of -com.

19

Image 21
Contents XGA Color Monitor Contents Safety Precautions Safety CheckFire & Shock Hazard Symbols in the manual General Safety InformationSymbols as marked on equipment Terms in the manualGeneral Servicing Precautions Servicing PrecautionsGeneral Soldering Guidelines Electrostatically Sensitive ES DevicesReplacement IC Removal/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Power IC, Transistor or Devices Removal/ReplacementTechnical Information Diode Removal/ReplacementAbbreviations General InformationPin Signal PIN ConnectorOperation and Adjustment Control PanelHot 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 Hints Trouble 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