user manual
FSN Series • User’s Guide  • Rev 01 323
7. Operations
Understanding Lookahead Preview
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 Use the following steps to see how the BG button affects lookahead preview, when 
one or more keys are on.
1.  Select CAM 1 on the PST bus (it should still be selected). 
2.  In the Next Transition Group, press BG. This action arms the background layer 
to transition.
Figure 7-9.  M/E Bank: BG Lookahead when keys are enabled
Please note:
~ With BG selected, and both KEY 1 and KEY 2 turned off, the PST bus 
will transition 
under the two keys. In effect, by selecting BG only, you are 
“holding” 
KEY 1 and KEY 2. 
~ The source selected on PST appears on PVW — because it is a part of 
the next transition.
~ The lookahead PVW output shows the next BG source underneath KEY 
1 
and KEY 2. 
3.  Press CUT or AUTO TRAN to cut, mix or wipe BG under KEY 1 and KEY 2. 
Preview Program
CAM1
CAM2
GFX
LOGO
BG
P
S
T
B
G
K
E
Y
BLACK
BLACK
BLACK
KEY
1
FSN 
Series
KEY
2
FSN 
Series










