Output skew, Mtpx plus pre-peak selection, Mtp receiver level/peaking setting – Extron Electronics MTPX Plus Series User Guide User Manual

Page 129

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Output skew

1.

Connect an oscilloscope (preferred) or a monitor (acceptable) to the TP output to be
adjusted, via an MTP receiver.

2.

Apply a crosshatch test pattern to one the local (VGA) inputs.

3.

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

4.

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.

5.

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

6.

If either of the two the remaining colors is left shifted, repeat steps 4 and 5.

7.

Repeat steps 2 through 6 for all other outputs.

MTPX Plus Pre-Peak Selection

NOTE: MTPX 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 longer than 300 feet, turn the Pre-
Peak feature on the MTPX Plus to on. For shorter cables, turn the feature off.

MTP Receiver Level/Peaking Setting

If level/peaking is available on the connected receivers, 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 (see

figure 73

).

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

TIP: The 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.

MTP

Receiver

VTG 300

Local (VGA)

Input

MTPX Plus

INPUT

BUFFERED

OUTPUT

OUTPUT

POWER
12V
.5A MAX

MTP RL 15HD A

ON

1 2 3 4 5 6

H SYNC +

V SYNC +

C SYNC

SOG

VIDEO

END UNIT

1

MONO AUDIO

2

MONO AUDIO OUTPUTS

OUTPUTS

RGB

RGB

1

2

3

1

Tx Rx

1

L

R

1

2

AUDIO

3

2

L

R

3

L

R

4

L

R

LOCAL INPUTS

LOCAL OUTPUT

RGB

RGB

INPUT SELECT

ON

LOCAL

RJ - 45

1

2

3

RS-232/RS-422

REMOTE

CONTROL

RS - 232 OUTPUT INSERT

Tx Rx

Tx Rx

Tx Rx

Tx Rx

Tx Rx

Tx Rx

Tx Rx

INPUTS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1

2

3

4

5

6

7

8

LAN

RESET

Oscilloscope

or display

RGB/R-Y,Y,B-Y

S-VIDEO

COMPOSITE

VIDEO

Figure 73.

Connections for Setting the Level and Peaking on the Receiver

3.

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

4.

Adjust the level/peaking on the receiver in accordance with the applicable MTP product
manual.

5.

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

MTPX Plus Series • Matrix Software 123

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