Promax MC-577 Manuel D'utilisation page 43

USER'S MANUAL MC-577.
1. GENERAL ........................................................................................................................1
1.1 Description.................................................................................................................1
1.2 Specifications ............................................................................................................2
2. SAFETY RULES ..............................................................................................................7
2.1 General ......................................................................................................................7
2.2 Specific precautions ..................................................................................................9
2.3 Descriptive Examples of Over-Voltage Categories..................................................9
3. INSTALLATION..............................................................................................................11
3.1 Operating connected to the mains..........................................................................11
3.1.1 Selecting the mains operating voltage.............................................................11
3.2 Operating on the battery .........................................................................................12
3.2.1 Recharging the battery .....................................................................................12
4. OPERATING INSTRUCTIONS .....................................................................................13
4.1 Description of the controls and elements ...............................................................13
4.2 Using the level meter ..............................................................................................16
4.2.1 Start-up .............................................................................................................16
4.2.2 Preliminary adjustments ...................................................................................17
4.2.3 Video Signal Input and Output .........................................................................17
4.2.3.1 Scart Description (DIN EN 50049).............................................................18
4.2.4 Spectrum Analyser operating mode.................................................................18
4.2.5 Monitor operating mode....................................................................................20
4.2.6 Taking measurements ......................................................................................21
4.2.6.1 Measuring the level of analogue signals ...................................................21
4.2.6.2 Measuring the power of digital channels...................................................23
4.2.6.3 Measuring the C/N ratio of analogue and digital signals ..........................24
4.2.6.3.1 Measuring the C/N ratio of analogue channels ..................................24
4.2.6.3.2 Measuring the C/N ratio of digital channels........................................26
5. MAINTENANCE.............................................................................................................27
5.1 Operating recommendations ..................................................................................27
5.2 Fuses replacement..................................................................................................27
5.2.1 Mains fuse replacement ...................................................................................27
5.2.2 Internal fuses which user cannot replace ........................................................27
5.3 Battery replacement ................................................................................................28
5.4 Cleaning recommendations ....................................................................................29
APPENDIX A.
Digital TV signals............................................................................................................31
Measuring tho power of digital channels .......................................................................32
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