Self Diagnosis | Daewoo 710B instruction

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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Daewoo 710B service manual Self Diagnosis

Contents

Service Manual XGA COLOR MONITOR Model 710B 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 Replacement“Small-Signal” Discrete Transistor Removal/Replacement Removal Diode Removal/Replacement Power IC, Transistor or Devices Removal/ReplacementTECHNICAL INFORMATION GENERAL INFORMATION Abbreviations CAUTIONS FOR ADJUSTMENT AND REPAIR PIN CONNECTORCaution For Servicing OPERATION & ADJUSTMENT ADJUSTMENT KEY ADJUSTMENT PROCESS RECALLCONTRAST BRIGHTNESS OSDOn-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 Raster 3. A missing Color One color is missing 4. Abnormal OSD Font Abnormal OSD Font 5. Horizontal Output Circuit Trouble in Horizontal output circuit No Raster Unstable picture Is H.Syncinput pin of IC501 correct? 6-2. V.OSC/Deflection Circuit Unstable or Abnormal picture 7. Focus Monitor remains unfocused 7-1. Dynamic Focus Focus is poor 8. Convergence Poor convergence 9. Abnormal Picture 9-1. Horizontal Size Abnormal H.Sizechanged, is the H.size changed? 1.Check B+ section of TDA9109 and its ambient circuit 9-2. Vertical Size Abnormal V.Size 10. High Voltage Circuit Trouble in H.V circuit No Raster 11. Side-Pincushion Circuit Side-Pincusion distortion is excessive or barrel 12. Power Supply Unit P.S.U Trouble in P.S.U 13V DC? of C104 13V DC?8.7V DC? ALIGNMENT PROCEDURE Standard Adjustment ConditionsPre-Adjustment Main Adjustment l Repeat e,f,g,h,i,j DIAGRAM PCB LAYOUT Main PCB Component Side Main 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-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-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