GRASS VALLEY 1200, Installation And Service

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2-27
System Setup
Timing Menu
Input timing is automatic; however, you can adjust the overall timing
manually in the Timing menu (Figure 2-20) to ensure that auto-timing
captures all inputs. When you make this adjustment, you are advancing or
delaying the Reference input, which causes a corresponding movement of
the auto-timing capture window for the primary inputs and also causes a
corresponding movement of the switcher outputs.
To adjust the overall timing, use the
[COARSE]
soft knob to set a rough
timing value, then adjust the
[REF TIMING (FINE)]
soft knob to fine tune the
timing. The maximum timing range is ±330 clocks (a clock equals 69.84
nanoseconds).
Figure 2-20. Timing Menu
TIMING
REF TIMING (FINE)
= +170 CLOCKS
COARSE
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J12
J13
J14
J15
J16
INPUT CLOCKS
µ
S
INPUT
CLOCKS
µ
S
+28
-56
+170
-210
-300
+250
-40
+80
+180
-90
-315
+48
+10
0
-200
+30
Exit
2.04
4.07
12.36
15.27
21.82
18.18
2.91
5.82
13.09
6.54
22.90
3.49
0.73
0.00
14.54
2.18
MAXIMUM TIMING RANGE = +/- 330 CLOCKS