User's Manual

30
1080i and sent through the Component Video Monitor [circle 15] or HDMI Jacks [circle
18] with the OSD messages.
41. Door A/V Audio Input: Connect this jack to the line level audio output of a door monitoring
or paging device.
42. Door A/V Composite Video Input: Connect this jack to the composite video output of a door
monitoring device or security camera.
43. Tuner 1 FM Antenna Jack: Connect the supplied indoor or an optional external FM antenna
to this terminal.
44. Tuner 1 AM Antenna Terminal: Connect the AM loop antenna supplied with the receiver to
these terminals. If an external AM antenna is used, make connections to the AM and GND
terminals in accordance with the instructions supplied with the antenna.
45. Tuner 2 FM Antenna Jack: Connect the supplied indoor or an optional external FM antenna
to this terminal.
46. Tuner 2 AM Antenna Terminal: Connect the AM loop antenna supplied with the receiver to
these terminals. If an external AM antenna is used, make connections to the AM and GND
terminals in accordance with the instructions supplied with the antenna.
SPF FEATURES (SOURCE POWER FLAG)
The SPF, Source Power Flag is used in conjunction with the REMOTE CONTROL SETUP/ON-OFF
COMMAND configurations to keep common sources in sync with system ON/OFF Status. The SPF
is an active device that can sense the presence of composite video or coaxial digital audio from a
common source component. When no signal is detected, the source is OFF and the SPF waits
for a change of status. When a composite video or coaxial digital audio signal is detected, the
SPF sends a 12V control voltage to an AVR21EN SPF FLAG-IN [circle 39] to let the AVR know
the component is ON.
When the AVR21EN is in ‘Standby’ and receives the power ON command, one of the turn-on
routines that the AVR runs through is to power up the common source components. There is a
table in the AVR’s operating system, that is configured with the REMOTE CONTROL SETUP/ON-
OFF COMMAND settings that gives the AVR three options for turning source components ON.
SPF: When a given source is set to have its ON/OFF status referenced by SPF, at turn-on, the
AVR will ‘look’ at the FLAG-IN Jack [circle 39] for that component to see if the 12V control
voltage is present. If not, (which it shouldn’t be) the AVR will output the power command for that
source through the appropriate IR emitter Control Out [circle 36]. The device will turn ON.
DON’T SEND: When a given source is set to DON’T SEND, the AVR will never send power
commands to that device. This device is one that is either left on all the time (Cable Box or
Satellite Receiver) or is for whatever reason turned on and off manually.
SEND: When a given source is set to SEND, the AVR will always send a power command when
it is turned ON. This is the option to use when discreet IR ON/OFF commands are available for a
particular component.
NOTE 1: The AVR runs the same routine in reverse when the AVR OFF command is received. If
in SPF Mode, the AVR will look for 12V on a FLAG-IN Jack [circle 39]. If 12V is present, the
power command for that device will be sent. If in DON’T SEND, no command will be sent for that
device, and if a source is configured for SEND, a power command, typically an OFF command
will be sent.