Tatung D556T, Service Manual

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TABLE OF CONTENTS
PAGE
1. SPECIFICATIONS ..................................................................................................... 3
2. PRECAUTION AND NOTICES ................................................................................ 5
2-1 SAFETY PRECAUTIONS .............................................................................. 5
2-2 PRODUCT SAFETY NOTICE ....................................................................... 5
2-3 SERVICE NOTES ........................................................................................... 5
2-4 HIGH VOLTAGE WARNING ....................................................................... 6
3. OPERATING INSTRUCTIONS ................................................................................ 7
4. ADJUSTMENT .......................................................................................................... 8
4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS ............................... 8
4-2 MAIN ADJUSTMENTS ................................................................................. 8
4-3 ADJUSTMENT METHOD ............................................................................. 8-9
5. CIRCUIT DESCRIPTION .......................................................................................... 10
6. TROUBLE SHOOTING CHART .............................................................................. 12
6-1 NO RASTER, CRT RELATIVE CIRCUIT PROBLEMS .............................. 12-13
6-2 ABNORMAL DISPLAY ................................................................................. 14
6-3 NO BLANKING ..............................................................................…............ 15
6-4 HOR. /OSC /DEF /HV CIRCUIT FAULT ...................................................... 15
6-5 ABNORMAL HORIZONTAL DEFLECTION .............................................. 16
6-6 ABNORMAL VERTICAL SCANNING ........................................................ 17
6-7 SIDE-PIN CUSHION DISTORTION ............................................................. 18
6-8 POOR FOCUS ................................................................................................. 18
6-9 NO SOUND (FOR AUDIO ONLY)......................................………….......... 18
6-10 POWER SUPPLY TROUBLE SHOOTING CHART .................................... 19
7. MECHANICAL OF CABINET FRONT DIS-ASSEMBLY...................................... 20
8. PARTS LISTING ....................................................................................................... 21
9. BLOCK DIAGRAM (DEFLECTION) ....................................................................... 35
9-1 BLOCK DIAGRAM (SMPS) .......................................................................... 36
10. IC BLOCK DIAGRAMS............................................................................................ 37
11. PCB LAYOUT ............................................................................................................ 40
12. SCHEMATIC DIAGRAM ......................................................................................... 42