Hameg HM 303-4 Manual

Also see for HM 303-4: Service manual

Hameg HM 303-4 Manual Manual pdf 1 page image

Subject to change without notice 1Operating Modes:CHI/II-TRIG.I/II, DUAL, ADD,CHOP., INV.I/II and XY-Operation ................. 24Triggering Checks .............................................. 25Timebase ........................................................... 25Component Tester ............................................ 26Trace Alignment ................................................ 26Service InstructionsGeneral .............................................................. 27Instrument Case Removal ................................. 27Operating Voltages ............................................ 27Maximum and Minimum Brightness ................. 27Astigmatism control .......................................... 27Trigger Threshold .............................................. 28Trouble-Shooting the Instrument ....................... 28Replacement of Components and Parts ........... 28Adjustments ...................................................... 28Short Instruction . ............................................... 29Front Panel Elements, Front View . .................. 30Table of contentsOscilloscope datasheetOperating InstructionsSymbols ............................................................ 6General Information ........................................... 6Use of tilt handle ............................................... 6Safety ................................................................ 6Operating conditions ......................................... 7Warranty ............................................................ 7Maintenance ..................................................... 7Protective Switch-Off ........................................ 7Power supply .................................................... 7Type of signal voltage ........................................ 8Amplitude Measurements ................................. 8Time Measurements ......................................... 9Connection of Test Signal ................................. 10First Time Operation .......................................... 12Trace Rotation TR .............................................. 12Probe compensation and use ............................ 12Operating Modes of the Y Amplifier ................. 14X-Y Operation .................................................... 15Phase difference measurementin DUAL mode ............................................ 15Measurement of an amplitude modulation ....... 16Triggering and Timebase ................................... 16Automatic Triggering ......................................... 17Normal Triggering, Slope ................................... 17Trigger Coupling ................................................ 17Triggering of Video Signals ................................ 17Line Triggering ................................................... 17Alternate Triggering ........................................... 17External Triggering ............................................ 17Trigger Indicator ................................................ 17Function of variable HOLD OFF control ............. 17Y Overscanning Operation ................................ 18Component Tester ............................................ 18Test Patterns ..................................................... 22Test InstructionsGeneral .............................................................. 23Cathode-Ray Tube: Brightness, Focus,Linearity, Raster Distortions ......... 23Astigmatism Check ........................................... 23Symmetry and Drift of the Vertical Amplifier .... 23Calibration of the Vertical Amplifier ................... 23Transmission Performanceof the Vertical Amplifier ................................. 24OscilloscopeHM 303-4GBSt. 170698/hüb/goRR