Focus, Monitor remains Unfocused | Daewoo 531X guide

7. Focus

Monitor remains

unfocused

Check

Focus VR in

FBT

Is

focusYes OK acceptable?

No

Trouble in Focus

circuit (FBT)

22

Image 24

Daewoo 531X service manual Focus, Monitor remains Unfocused

Contents

XGA Color Monitor Contents Safety Precautions Safety CheckFire & Shock Hazard Implosion Protection General Safety Information Symbols in the manualSymbols as marked on equipment Terms in the manual Servicing Precautions General Servicing Precautions Electrostatically Sensitive ES Devices General Soldering Guidelines IC Removal/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement Removal Power IC, Transistor or Devices Removal/Replacement Diode Removal/ReplacementTechnical Information General Information Abbreviations PIN Connector Pin Signal Operation and Adjustment Control Panel Key Process OSD Functions Adjust the horizontal picture moire cancellation Alignment Procedure Standard Adjustment ConditionsPre-Adjustment Method to launch the factory modePage Troubleshooting Hints No CharacterNo Character No Raster No Raster Missing Color One color is Missing Abnormal OSD Font Abnormal OSD Font Horizontal Output Circuit VGA Unstable Picture Horizontal Unstable Picture Vertical Focus Monitor remains Unfocused Convergence Poor convergence Abnormal Picture Horizontal Size Abnormal Size Vertical Size Side-Pincushion Circuit Power Supply Unit P.S.U Trouble in P.S.U U O.K Diagram Block PCB Layout Main PCB Solder Side CRT PCB Component Side CRT PCB Solder Side Schematic Diagram Power & Connection Section Control & Vert. out Section Horizontal Section Video Section Exploded View Diagram Important Safety Notice Information of Part DescriptionAbbreviation of Description Electrical Parts List PART-NAME PART-DESC LOC LED Metal Film Diode TVR1G TPA1 686, AHYEON-DONG MAPO-GU SEOUL, Korea