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8150 Technical Guide
9100-0212-04 - May 2000
O/P KA and O/P KB (Options G and H only): These are
identical composite analog key outputs if Option G is
installed, or identical serial composite digital key outputs if
Option H is installed. Only use these if you are feeding a key
signal to the A28 that matches the timing of the 8150 program
or preview output. With DIP switch U15Q segment 1 turned
ON, this output is delayed 34 lines from the reference
connected to the A28.
D1 VID IN: If you have a way to convert the 8150 output from
serial digital to parallel digital, connect the deserialized 8150
output to this input.
D1 KEY IN: Use this input only if you are feeding a parallel
digital key signal to the A28 that is zero timed to the 8150
program or preview output.
D2 VID OUT: This is the composite digital (D2) video output.
Connect this to any composite digital device that uses the
8150 as an input. With DIP switch U15Q segment 1 turned
ON, this output is delayed 34 lines from the reference
connected to the A28.
D2 KEY OUT: This is the composite digital (D2) key output,
which is not active unless you have a digital key input
connected. If so, connect this output to any composite digital
device that requires the encoded key signal as an input. With
DIP switch U15Q segment 1 turned ON, this output is
delayed 34 lines from the reference connected to the A28.
If the A28 has Option C (serial component digital input)
installed:
I/P VA: Connect an 8150 program output to this input.
I/P VB: If needed, connect the 8150 preview output to this
input. You can connect an Aux output to this input, but its
timing is incorrect unless the source fed to the Aux output is
a source delayed by 34 lines from reference. Note that the A28
encodes only one input video signal at a time.
Encoding the 8150 Output (NTSC)
Engineering Setup
5-87
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