O P T I O N S
page 8 – 6
TV80 / Aug 98
CONF
INTERRUPT
ALL
MXM
MXM
1
2
3
4
5
6
7
8
MSTR
1
MASTER
STEREO
MXM
MXM
MXM
MXM
MXM
MXM
MXM
CONFIDENCE
FEED
MIX-MINUS
Confidence Module
The CONF-80 Confidence module is designed to interrupt regular
console signals with a substitute signal as desired. It affects MIX-
MINUS and STEREO MASTER #1 LINE OUT signals.
Mix-Minus Interrupt (Confidence Feed)
By their nature, mix-minus outputs are normally only active for
those short periods of time when they are in actual use; this often leaves
long periods of time when talent or listeners at the other end have no
way of knowing whether the circuit is active and working properly. The
purpose of this feature is to provide a “confidence” signal that feeds the
console’s MXM outputs during off periods to assure the individuals
involved that the system is indeed functional and ready for instant “on-
air” use.
Pressing the Confidence module’s MXM interrupt switches causes
the console’s regular Mix-Minus outputs (there are eight of them; each
one mastered at an individual submaster module) to be replaced with
a mono line level signal (“Confidence Feed IN”) inputted at each
submaster module’s rear panel upper DB-25 audio connector. The
interrupt signal(s) can be different for each module or paralleled across
so each MXM output gets the same confidence feed. Note pressing the
MXM ALL switch interrupts all eight MXM outputs simultaneously.
When the MXM ALL switch is turned off, individual switches will
revert to their original states (but see “Internal Programming” on next
page).
See the Submaster Module signal flow diagram on page 46 of the
technical drawings to understand how the circuit works.
Stereo Master 1 Interrupt (Tone Interrupt)
Similar to the confidence feed feature, Stereo Master 1 Interrupt is
used at the console’s Stereo Master Module #1, where a mono line level
signal (“Ext Tone IN”) inputted at the module’s rear panel upper DB-
25 audio connector interrupts the “on-air” output (i.e., the Stereo
Master 1 main LINE OUTPUT output signal). The purpose is to allow
the console to be used for rehearsal and set-up prior to going on-air, but
without having the rehearsal signal fed further up the broadcast chain.
Instead, a substitute signal (usually a simple tone; hence “tone inter-
rupt”) is outputted from the console whenever the Stereo Master
Interrupt switch is activated.
Note Stereo Master Interrupt may also be turned OFF (but not ON) by a
user-supplied external “Tone Off” switch wired to lower DB-25 control pins
on the confidence module’s rear panel (“Remote Tone Dropout Logic”; see
diagram on page 8-9).
TV80 / March 99
Содержание TV-80
Страница 1: ...TV 80 Audio Console TECHNICAL MANUAL 600 Industrial Drive New Bern North Carolina USA 28562 ...
Страница 103: ...A P P E N D I C E S TV80 Sep 98 page A 8 APPENDIX II Factory Leg Set Assembly ...
Страница 106: ...A P P E N D I C E S TV80 Sep 98 page A 11 APPENDIX III Torpey Clock Display ...
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