Acer AC701, Manual

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1
1. DISPLAY ALIGNMENT.............................................................................. 2
A. TIMING & DISPLAY SIZE .......................................................................................................................... 2
B. PICTURE POSITION ................................................................................................................................. 2
C. LINEARITY ................................................................................................................................................ 2
D. ALIGNMENT PROCEDURE...................................................................................................................... 2
E. GEOMETRIC DISTORTION ...................................................................................................................... 3
F. WHITE BALANCE ALIGNMENT ................................................................................................................ 4
2. CONTROL AND CONNECT LAYOUT....................................................... 6
A. MAIN PCB .................................................................................................................................................. 6
C. PIN ASSIGNMENT .................................................................................................................................... 8
3. INTRODUCTION: ...................................................................................... 9
A. POWER SUPPLY....................................................................................................................................... 9
B. DEFLECTION: ........................................................................................................................................... 9
C. VIDEO: ....................................................................................................................................................... 9
D. DIGITAL CONTROLLOR: .......................................................................................................................... 9
4. POWER SUPPLY .................................................................................... 12
A. RECTIFIER AND FILTER CKT: ............................................................................................................... 12
B. FLYBACK AND PWM CKT : .................................................................................................................... 12
C. SNUBBER CKT:....................................................................................................................................... 12
D. SYNCHRONIZED CKT: ........................................................................................................................... 12
E. POWER SAVING CKT: ............................................................................................................................ 12
F. DEGAUSS CKT: ....................................................................................................................................... 13
G. OVERLOAD PROTECTION CKT: ........................................................................................................... 13
5. DEFLECTION .......................................................................................... 14
A. SYNC RPOCESSOR: .............................................................................................................................. 14
B. HORIZONTAL PROCESSOR .................................................................................................................. 14
C. VERTICAL OUTPUT................................................................................................................................ 14
D. HORIZONTAL OUTPUT STAGE ............................................................................................................. 14
E. FLYBLACK TRANSFORMER .................................................................................................................. 14
6. VIDEO AMP. CIRCUIT............................................................................. 17
A. VIDEO PRE. AMP. ................................................................................................................................... 17
B. VIDEO AMPLIFIER .................................................................................................................................. 17
7. TROUBLESHOOTING............................................................................. 19
A. POWER SUPPLY CHECK ....................................................................................................................... 19
B. MONITOR CHECK FLOW CHART.......................................................................................................... 20
APPENDIX A: PARTS LISTS...................................................................... 23
APPENDIX B: P. C. B. ASSEMBLY ........................................................... 36
APPENDIX C: DISPLAY UNIT ASSEMBLY .............................................. 54
APPENDIX D: CRT & YOKE ASSEMBLY ................................................. 58