Drake 806DM Video Demodulator - Manual (Page 4)

VIDEO
OUTPUT
AUDIO
OUTPUT
ANT/CABLE
INPUT
120 VAC
60 Hz 10 W
600 VA MAX
CHANNEL AUDIO
LEVEL
VIDEO
LEVEL
806DM AGILE NTSC DEMODULATOR
CHANNEL
UNLOCK
LOCK ANTENNA
CABLE
4 Front and Rear Panel Controls and Connections
F1 F2 F3 F4 F5 F6
F1 - CHANNEL Number Display
Displays off air broadcast channels (ANTENNA mode)
with an "A" followed by a channel number.
In cable mode, a three digit channel number is displayed.
Also displays CATV channels with a 3 digit numeric
display of the EIA channel number.
F2 - LOCK / UNLOCK Switch
Press to lock or unlock the channel selection and
ANTENNA/CABLE functions. The unit is locked when a
decimal point is displayed between the 2nd and 3rd digits
in the display.
F3 - CHANNEL / Select Switch
These buttons are used to increment or decrement the
selected channel. The channel can only be changed
when the unit is unlocked (decimal point is not illuminated
between 2nd and 3rd digits). See F2.
Figure 1
F4 - ANTENNA / CABLE Switch
Press to toggle between ANTENNA and CABLE channel
tuning. When the ANTENNA mode is selected, an "A" will
be displayed in the far left position of the channel display.
See F1. The ANTENNA/CABLE selection can be made
only if the unit is unlocked. See F2.
F5 - AUDIO Output Level Control
Use this control to adjust the demodulated audio output
level presented at R2.
F6 - VIDEO Output Level Control
Use this control to adjust the demodulated video output
level presented at R1.
R1 R2 R3 R4 R5
R1 - VIDEO OUTPUT Connector
This is the 75 Ohm baseband video output at a nominal
1.0 Vp-p level which is adjustable with the front panel
VIDEO LEVEL control
R2 - AUDIO OUTPUT Connector
This is the demodulated audio output at a nominal
350 mV rms. This level is adjustable with the front panel
AUDIO LEVEL control.
R3 - RF Input Connector
This is the 75 Ohm input to the demodulator circuits from
an off-air television receiving antenna or from a CATV
cable input.
Figure 2
R4 - AC Receptacle
Provides a 115 VAC convenience outlet for powering of
other modulators, etc.
R5 - LINE CORD
This is the AC power line. Connect to a nominal 115 VAC
±10%, 60 Hz source.
Front Panel Controls and Indicators
Rear Panel Connections