Daewoo 710B service manual Self Diagnosis

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Self Diagnosis

Self Diagnosis

When the monitor doesn’t display, if you press any key, Self Diagnosis screen is displayed. Self Diagnosis function checks if the status of the monitor is No Signal or Out of range.

No Signal screen is displayed when the D-Sub signal connector is not connected or the status of the monitor is on DPMS mode.

Out of Range screen is displayed when the applied frequency is under or over normal range.

Normal range H : 30-69 KHz V : 50-160 Hz

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Contents Service Manual XGA COLOR MONITOR Model 710BCONTENTS 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 Replacement“Small-Signal” Discrete Transistor Removal/Replacement RemovalDiode Removal/Replacement Power IC, Transistor or Devices Removal/ReplacementTECHNICAL INFORMATION GENERAL INFORMATION AbbreviationsCAUTIONS FOR ADJUSTMENT AND REPAIR PIN CONNECTORCaution For Servicing OPERATION & ADJUSTMENT ADJUSTMENT KEYADJUSTMENT PROCESS RECALLCONTRAST BRIGHTNESSOSDOn-Screen Display Menu ROTATION Choose different preset color temperatures or set your own customized Self Diagnosis 1. No Character TROUBLESHOOTING HINTSNo Character 2. No Raster No Raster3. A missing Color One color is missing4. Abnormal OSD Font Abnormal OSD Font5. Horizontal Output Circuit Trouble in Horizontal output circuit No RasterUnstable picture Is H.Syncinput pin of IC501 correct?6-2. V.OSC/Deflection Circuit Unstable or Abnormal picture7. Focus Monitor remains unfocused7-1. Dynamic Focus Focus is poor8. Convergence Poor convergence9. Abnormal Picture 9-1. Horizontal Size Abnormal H.Sizechanged, is the H.size changed? 1.Check B+ section of TDA9109 and its ambient circuit9-2. Vertical Size Abnormal V.Size10. High Voltage Circuit Trouble in H.V circuit No Raster11. Side-Pincushion Circuit Side-Pincusion distortion is excessive or barrel12. Power Supply Unit P.S.U Trouble in P.S.U13V DC? of C104 13V DC?8.7V DC? ALIGNMENT PROCEDURE Standard Adjustment ConditionsPre-Adjustment Main Adjustmentl Repeat e,f,g,h,i,j DIAGRAM PCB LAYOUT Main PCB Component SideMain PCB Solder Side Video PCB Component Side Video PCB Solder Side Page EXPLODED VIEW DIAGRAM Important Safety Notice REPLACEMENT PARTS LISTAbbreviation of Description CIRCUIT BOARD ELECTRICAL PARTS LIST PART-CODEPART-NAME PART-DESCPART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME PART-NAME PART-NAME PART-CODEPART-DESC PART-NAME PART-CODEPART-DESC PART-NAME OVERSEAS SERVICE DEPT Serv ce ManualPRINTED DATE NOV.1998 DAEWOO ELECTRONICS CO