JVC KM-H2500U User Manual

Page of 56
19
The KM-H2500 supports 2 keys. The KM-H3000 
supports 3 keys.
Video Layering
Video is layered as shown in (Figure 10). 
Figure 10  Video Layering
1.
Program
2.
Key 1
3.
Key 2
4.
Key 3 (KM-H3000 only)
Key Transitions
Key transitions are similar to background transitions. 
You can perform key and background transitions 
simultaneously.
Selecting Keys
Selecting a key allows you to configure the key type 
and select a source for that key. 
To select a key:
• Select a key by pressing one of the key select 
buttons. You can choose from the following:
› AUTO SEL, or CHR KEY — selects Key 1 and 
sets the key type.
› KEY 2 SEL — selects Key 2.
› KEY 3 SEL — selects Key 3 (KM-H 3000 only).
Note:
• If you select Key 1, you are selecting a key and key 
type simultaneously.
Performing Key Transitions
Key transitions are performed similarly to background 
transitions. All transition types are available for key 
transition.
To perform a key transition:
1.
Ensure the key you are using in the transition is 
not on-air.
2.
Select the key you wish to use.
3.
Select the key type by pressing one of the 
following:
• CHR KEY to create a Chroma Key.
• AUTO SELECT to create an Auto-Select Key.
4.
Press the corresponding key button in the Next 
Transition area to include the key in the 
transition. You can choose from the following:
• KEY 1 to include Key 1.
• KEY 2 to include Key 2.
• KEY 3 to include Key 3 (KM-H3000 only).
5.
Select a source on the Key/Aux bus that you 
want to take on-air. The selected source appears 
on your preview monitor over the background 
image.
6.
Choose the type of transition you wish to 
perform:
• Press DISS to select a dissolve transition.
• Press WIPE to select a wipe transition.
7.
Perform the transition by using one of the 
following methods:
• Press CUT to immediately cut the selected 
source on-air (selected transition type is 
ignored).
• Press AUTO TRANS to have the switcher 
perform a smooth transition.
• Move the Fader from one limit to the other to 
perform a manual transition.
Note:
• To include multiple keys in the transition, push the 
desired combination of KEY 1KEY 2, and KEY 3 
buttons simultaneously.
• When a key is on-air, the tally above the on-air key 
glows red.
For More Information on...
4
3
2
1
5
2
7
6
3
4