evertz 5010, Инструкция по эксплуатации

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Model 5010 Time Code Master Manual
Page 6-4
Revision 3.1.1
TECHNICAL DESCRIPTION
2. Connect channel B of your scope to test point ALM located near integrated circuit U9 on the
7700STM board (test point ALARM located near integrated circuit U25 on the 5200 board).
3. Use the Ð key on the 5010 to adjust the NOVPOT down to its lowest value. Gradually increase
the NOVPOT value using the Ï key until a pulse appears on channel B of your scope. This
pulse should be approximately one video field in length and should occur in field 7 for PAL and
field 3 for NTSC. The pulse on channel B should be two fields before the second pulse of
channel A. See Figure 6-3 for PAL and Figure 6-4 for NTSC. Write down the NOVPOT value
where the pulse first appears correctly.
Channel A
Col'r Frm Id
from Sync Gen
Channel B
TPD7
from 5010
Figure 6-3: PAL Colour Frame Calibration
Channel A
Col'r Frm Id
from Sync Gen
Channel B
TPD7
from 5010
Figure 6-4: NTSC Colour Frame Calibration
4. Continue adjusting the NOVPOT value up until the pulse on channel B disappears. Write down
the NOVPOT value where the pulse first disappears.
5. Using the Ð key adjust the NOVPOT value down until it is at the mid point between the upper
and lower values. For example: If the upper value is 15 and the lower value is 8, set the
NOVPOT to 11. The COL’R LED should be On.
6. Repeat the procedure for the other video standard as required.
7. Set DIP switch #1 to the Off (open) position to return the 5010 to its normal operating mode.