3
TABLE OF CONTENTS
Page
TEST INSTRUMENT SAFETY ............................. inside front cover
INTRODUCTION ........................................................................4
FEATURES .......................................................................................... 5
SPECIFICATIONS .............................................................................. 6
DEFINITIONS OF TERMS ................................................................ 8
THE NTSC COLOR VIDEO SIGNAL ............................................ 11
History ......................................................................................... 11
Horizontal Sync ........................................................................... 11
Vertical Sync ............................................................................... 12
Amplitude .................................................................................... 12
Color ............................................................................................ 15
NTSC Color Bars Signal ............................................................. 15
CONTROLS AND INDICATORS ................................................... 18
OPERATING INSTRUCTIONS ....................................................... 22
Precautions and Tips ................................................................... 22
Familiarization ............................................................................ 22
Initial Set-Up ............................................................................... 22
NTSC Standard Color Bar Pattern ............................................. 24
Staircase Pattern .......................................................................... 25
Color Bars With 100% White ..................................................... 25
Staircase With 100% White ........................................................ 25
Convergence Patterns .................................................................. 25
Page
Black Raster Pattern .......................................................... 25
4.5MHz Subcarrier Use ........................................................... 25
RGB Output ............................................................................. 25
Waveform Monitoring ............................................................. 26
Simultaneous Outputs .............................................................. 27
APPLICATIONS .............................................................................. 28
NTSC Color Bars ..................................................................... 28
Staircase ................................................................................... 29
Convergence ............................................................................. 29
RF and I-F ................................................................................ 29
Sync .......................................................................................... 30
30Hz Output ............................................................................. 30
CCTV Applications ................................................................. 30
CATV Applications ................................................................. 30
MATV Applications ................................................................ 31
Vectorscope Measurements .................................................... 31
MAINTENANCE ..................................................................... 34
Case Removal ......................................................................... 34
Fuse Replacement ................................................................... 34
Calibration ....................................................................... 34
SERVICE INSTRUCTIONS ...................................................... 38
LIMITED ONE- YEAR WARRANTY ....................................... 39
Summary of Contents for 1249B
Page 1: ...INSTRUCTION MANUAL Model 1249B NTSC GENERATOR ...
Page 16: ...16 THE NTSC COLOR VIDEO SIGNAL CONT Fig 3 Elements of Color Television Signal ...
Page 20: ...20 CONTROLS AND INDICATORS CONT Fig 4 Controls and Indicators ...
Page 35: ...35 MAINTENANCE CONT R7 Fig 8 Adjustment and Test Point Locations ...
