Daewoo 531X service manual Abnormal OSD Font

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4. Abnormal OSD Font

Abnormal OSD Font

Is menu

key selected?

Is OSD Font

exist?

Yes

One color is missing

Yes

Is the

output of IC204 (pin 13, 14, 15) normal?

Yes

Refer to Missing Color

* If menu key selected.

No

 

 

 

Is Heater

No

 

Trouble in

 

 

 

Voltage about 6V?

 

Heater voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

line.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

Refer to trouble in P.S.U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Troubie in

 

 

 

 

 

 

 

 

 

 

IC803 or its

 

 

 

 

 

 

 

 

 

 

ambient circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

Trouble in IC204

 

 

 

 

 

 

 

and its ambient

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents XGA Color Monitor Contents Safety Precautions Safety CheckFire & Shock Hazard Implosion ProtectionGeneral Safety Information Symbols in the manualSymbols as marked on equipment Terms in the manualServicing Precautions General Servicing PrecautionsElectrostatically Sensitive ES Devices General Soldering GuidelinesIC Removal/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement RemovalTechnical Information Power IC, Transistor or Devices Removal/ReplacementDiode Removal/Replacement General Information AbbreviationsPIN Connector Pin SignalOperation and Adjustment Control PanelKey Process OSD Functions Adjust the horizontal picture moire cancellation Alignment Procedure Standard Adjustment ConditionsPre-Adjustment Method to launch the factory modePage No Character Troubleshooting HintsNo Character No Raster No RasterMissing Color One color is MissingAbnormal OSD Font Abnormal OSD FontHorizontal Output Circuit VGAUnstable Picture Horizontal Unstable PictureVertical Focus Monitor remains UnfocusedConvergence Poor convergenceAbnormal Picture Horizontal Size Abnormal SizeVertical Size Side-Pincushion Circuit Power Supply Unit P.S.U Trouble in P.S.UU O.K Diagram BlockPCB Layout Main PCB Solder Side CRT PCB Component Side CRT PCB Solder Side Schematic Diagram Power & Connection SectionControl & Vert. out Section Horizontal Section Video Section Exploded View Diagram Abbreviation of Description Important Safety NoticeInformation of Part Description Electrical Parts List PART-NAME PART-DESCLOC LED Metal Film Diode TVR1G TPA1 686, AHYEON-DONG MAPO-GU SEOUL, Korea