Vertical Size, Abnormal V.Size | Daewoo 710B specs

9-2. Vertical Size

9-2. Vertical Size

Abnormal

V.Size

Is

changeable the No DC voltage of IC401 pin 1?

Yes

Trouble V.OSC/

Deflection Circuit

Refer to V.OSC/Deflection circuit

Is

the 3.5Vdc of pin Yes 23 of the IC501?

No

Check the IC501 and its ambient circuit

Check the IC401 and its ambient circuit

26

Image 28

Daewoo 710B service manual Vertical Size, Abnormal V.Size

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