Tektronix 2200 Manual Do Utilizador

2-77

This procedure sets the serial inputs to the center of the auto timing range. 
Make sure you have assigned your serial inputs in the Configuration menu 
before proceeding.

1. Select one of the serial sources and connect it to the serial to analog 

converter.

2. Connect the Y (or G) output of the converter to the scope. Adjust the 

delayed sweep on the scope so that the midpoint of the black–to–white 
transition is at a reference point.

3. Connect this source to a primary switcher input and select it on the 

program bus.

4. Connect the serial program output of the switcher (J5 or J6 of the Serial 

Output Module in Slot D6) to the input of the converter.

5. Adjust the rotary switches on the front of the Sync Generator Module 

so that the black-to-white transition is 70 µS later than the previously 
noted reference point.

Use this procedure to set the switcher delay to a minimum.

1. Select the serial source with the latest delay, and connect it to the serial-

to-analog converter.

2. Connect the Y (or G) output of the converter to the scope. 

3. Adjust the delayed sweep on the scope so that the midpoint of the 

black-to-white transition is at a reference point.

4. Connect this source to a primary switcher input and select it on the 

program bus. 

5. Connect the serial program output to the input of the converter. Adjust 

the rotary switches on the front of the Sync Generator Module so that 
the black-to-white transition is 50 µS later than the previously noted 
reference point.

6. The serial input with the latest delay can move up to 2.5 µS later and 

still be autotimed by the switcher.