2.26 METERING
Master metering
The Cinemix has a total of six VU meters above the master section in the
meterbridge. Analog VU meters will indicate the average level in the signal
paths.
A separate
Phase
meter indicates any phase shift between the left and right
signals. In most cases, switching the phase switch on selected input modules can
correct the phase shift.
Mono and Stereo module meters
Due to the extreme transients in digital recordings, Cinemix's "
Peak
" reading
channel meters have an extended range from -30dB up to a reading
of +6dB. The bottom LED on all D&R LED bargraph meters is an
indicator that the associated module is on. When first powering up,
always check all "
ON
" LEDs under each meter.
If any "
ON
" LED is not lite, turn off the power supplies and call
D&R for service advice. Both mono and stereo input module meters
have peak ballistics with 13 segments. Cinemix's meters can be
switched (individually) to read the
CHAN
nel section or
MIX
section
of each module locally.
The channel meters are a peak reading design and read 0dB when an
oscillator sine wave with a +4 dB output level is sent to the meter.
Measuring the +4 dB output level of the channel or master with a AC
voltmeter would give a 1.22 AC volt reading.
When monitoring the oscillator on analog VU meters, the VU meters
should read "0" when the channel meters are reading 0dB. We have
discontinued the habit of making peak reading meters to read -6 dB
down from the actual output level for corresponding VU meter
readings.
With more and more digital equipment being used for laying down
tracks, the actual level is of primary importance to know to avoid
digital overloads.
After all alignment procedures have been performed, playing program
material will show a difference in reading on the VU meters compared
to the peak reading ledbars in the channels.
Cinemix manual page: 22
Summary of Contents for CinemIX
Page 1: ...Cinemixman lwp CinemiX OWNERS MANUAL Cinemix manual page 1 ...
Page 59: ...12 0 SIGNAL FLOW MASTER SECTION Cinemix manual page 59 ...
Page 60: ...13 0 SIGNAL FLOW INPUT MODULE Cinemix manual page 60 ...
Page 61: ...14 0 System signal flow Cinemix Cinemix manual page 61 ...
Page 62: ...15 0 Interfacing with external equipment Cinemix manual page 62 ...
Page 63: ...16 0 Interfacing with DS4E CP65 17 0 Cinemix manual page 63 ...
Page 64: ...17 00 Interfacing with Dolby SEU4 SDU4 Cinemix manual page 64 ...
Page 65: ...18 00 Interfacing with JS 300 Cinemix manual page 65 ...
Page 76: ...CinemiX SERVICE MANUAL ...
Page 78: ...Powersupply logic PS_DIG2A 1 Power distribution 2POWER CON Cinemix 20B 1 ...
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Page 125: ...CinemiX CinemiX SERVICE MANUAL MATRIX ...
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Page 138: ...CinemiX CinemiX SERVICE MANUAL MOTORFADERS ...
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Page 144: ...CinemiX CinemiX SERVICE MANUAL DYNAMICS ...
Page 145: ...Circuit diagram list Dynamics Description PCB name Number of Sheets Dynamics CPU DYN_1B 2 ...
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