10 – How To Read The VLM-40/Examples
VLM-40 NTSC T
ECHNICAL
I
NSTRUCTION
M
ANUAL
OPERATION
S
ETUP
L
EVEL
...
The setup LED is a two-way indicator of setup levels, as shown
in Fig.12. The thresholds are:
Setup Level
Setup LED
Above 7.5 IRE
Green
7.5 to 4.0 IRE
Green
Below 4.0 IRE
Red
COMPOSITE VIDEO LUMINANCE METER
MODEL VLM-40
-48
-40
0
20
40
60
80
100
120
© 1990
SYNC
LUMINANCE
IRE UNITS
-32
SYNC
SETUP
IRE Units
100
80
60
40
20
-20
-40
0
setup = 7.5
Fig. 11. The SETUP LED on the VLM-40 corresponds to the setup
level on a waveform monitor.