Matrix Software, cont’d

10. Tie the local input receiving the test pattern signal to the output to be optimized.

11. Use the test equipment or examine the displayed video image with a critical eye to determine which video signal — red, green, or blue — is most shifted to the left.

12. Adjust the leftmost video signal to the right until all three colors are converged.

NWhen the skew adjustment is set to zero, the MTPX Plus cannot shift the rightmost video image to the left.

NA 2-nanosecond adjustment is very fine. Up to 10 nanoseconds of delay may be necessary before you detect a change in the display.

13. If either of the two the remaining colors is left shifted, repeat steps 11 and 12.

14. Repeat steps 9 through 13 for all other outputs.

MTPX Plus Pre-Peak selection

NMTPX Pre-Peak is available on the first 25% of the MTPX Plus outputs (for example, outputs 1 through 4 for an MTPX Plus 168).

If the cable between the MTPX Plus and the receiver is > 300', turn the MTPX Plus’s Pre-Peak feature on. For shorter cables, turn the feature off.

MTP Receiver level/peaking setting

If level/peaking is available on the connected receiver(s), adjust it as follows:

1. If using an oscilloscope, apply a white field test pattern to one the local (VGA) inputs on the MTPX Plus (figure 5-21).

If using a monitor, apply a Color Bars test pattern to one the local (VGA) inputs on the MTPX Plus.

HThe Extron VTG 300 or VTG 400 are recommended to provide the test pattern.

2.

Tie the local input receiving the test pattern signal to the output connected to

 

the MTP receiver to be optimized.

 

VTG 300

 

 

Local (VGA)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

input

 

 

 

 

 

 

 

 

 

MTPX Plus

MTP

 

1

 

 

 

 

 

 

 

 

 

 

1

2

RS3

- 232 OUTPUT4 5 INSERT6

7

8

 

LOCAL INPUTS

 

LOCAL OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RGB

 

RGB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

RGB

 

RGB

1

2

3

4INPUTS5

6

7

8

1

2

3

OUTPUTS4 5

6

7

8

receiver

 

2

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MONO AUDIO OUTPUTS

9

10

11

12

13

14

15

16

9

10

11

12

13

14

15

16

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oscilloscope

or display

Figure 5-21 — Connections for setting the receiver’s level/peaking

3.

Connect an oscilloscope or monitor to the output of the MTP receiver.

4.

Adjust the receiver’s level/peaking in accordance with the applicable MTP

 

product manual.

5.

Repeat steps 2 through 4 for each receiver to be optimized.

5-26 MTPX Plus Twisted Pair Matrix Switchers • Matrix Software

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Extron electronic MTPX Plus Series Mtpx Plus Pre-Peak selection, MTP Receiver level/peaking setting, Product manual