Daewoo 710B guide

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Daewoo 710B service manual

Contents

XGA COLOR MONITOR Model 710B Service Manual CONTENTS Implosion Protection SAFETY PRECAUTIONSSafety Check Fire & Shock Hazard Terms in the manual GENERAL SAFETY INFORMATIONSymbols in the manual Symbols as marked on equipment General Servicing Precautions SERVICING PRECAUTIONS General Soldering Guidelines Electrostatically Sensitive ES Devices Removal IC Removal/ReplacementReplacement “Small-Signal” Discrete Transistor Removal/Replacement Power IC, Transistor or Devices Removal/Replacement Diode Removal/ReplacementTECHNICAL INFORMATION Abbreviations GENERAL INFORMATION PIN CONNECTOR CAUTIONS FOR ADJUSTMENT AND REPAIRCaution For Servicing ADJUSTMENT KEY OPERATION & ADJUSTMENT BRIGHTNESS ADJUSTMENT PROCESSRECALL CONTRAST OSDOn-Screen Display Menu ROTATION Choose different preset color temperatures or set your own customized Self Diagnosis TROUBLESHOOTING HINTS 1. No CharacterNo Character No Raster 2. No Raster One color is missing 3. A missing Color Abnormal OSD Font 4. Abnormal OSD Font Trouble in Horizontal output circuit No Raster 5. Horizontal Output Circuit correct? Unstable pictureIs H.Sync input pin of IC501 Unstable or Abnormal picture 6-2. V.OSC/Deflection Circuit Monitor remains unfocused 7. Focus Focus is poor 7-1. Dynamic Focus Poor convergence 8. Convergence 1.Check B+ section of TDA9109 and its ambient circuit 9. Abnormal Picture 9-1. Horizontal SizeAbnormal H.Size changed, is the H.size changed? Abnormal V.Size 9-2. Vertical Size Trouble in H.V circuit No Raster 10. High Voltage Circuit Side-Pincusion distortion is excessive or barrel 11. Side-Pincushion Circuit Trouble in P.S.U 12. Power Supply Unit P.S.U of C104 13V DC? 13V DC?8.7V DC? Main Adjustment ALIGNMENT PROCEDUREStandard Adjustment Conditions Pre-Adjustment l Repeat e,f,g,h,i,j DIAGRAM Main PCB Component Side PCB LAYOUT Main PCB Solder Side Video PCB Component Side Video PCB Solder Side Page EXPLODED VIEW DIAGRAM REPLACEMENT PARTS LIST Important Safety NoticeAbbreviation of Description PART-DESC CIRCUIT BOARD ELECTRICAL PARTS LISTPART-CODE PART-NAME PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAME PART-CODE PART-NAMEPART-DESC PART-CODE PART-NAMEPART-DESC PART-CODE DAEWOO ELECTRONICS CO OVERSEAS SERVICE DEPTServ ce Manual PRINTED DATE NOV.1998