Extron electronic TPX 88 A manual B1 2 3 4 5 6 7, 36 - Select an input, Volumet

3. Press and release the input 5 button (figure 3-36).

Press and release the input 5 button.

The button lights to indicate that the input 5 audio is selected.

I	1	2	3	4	5	6	7	8
T
N
P
U
O	1	2	3	4	5	6	7	8
U
U
T			B2
P
T
	Green	Green	Green

I

N P U T

O U T P U T

The output buttons display the selected input's audio level and polarity (gain or attenuation). When the buttons are lit green, they indicate a gain (+) audio level.

When the output buttons are lit red, they indicate an attenuation (-)level. In this example, the output buttons display an audio gain level of +8 dB.

= Unlit (0 dB)

B2 = Fast blink (2 dB)

B1 = Slow blink (1 dB)

= Lit (3 dB)

Figure 3-36 — Select an input

4. Slowly rotate the volume knob counterclockwise (figure 3-37). Note the output button indication changes that occur as you rotate the knob.

Turn the volume knob slowly. The encoder will not reliably recognize the level change if you turn the knob too quickly.

Figure 3-37 shows the result of reducing the audio level a total of 9 dB. Note that the level is now displayed in red to indicate a negative level.

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N

Rotate the volume knob. P

U

T

O

U

T

P

U

VOLUMET

1 2 3 4 5 6 7 8

B1 2 3 4 5 6 7 8

Red

I

N P U T

O U T P U T

The output buttons display the selected input's audio level and polarity (gain or attenuation). When the buttons are lit green, they indicate a gain (+) audio level.

When the output buttons are lit red, they indicate an attenuation (-)level. In this example, the output buttons display an audio gain level of -1 dB.

= Unlit (0 dB)

B2 = Fast blink (2 dB)

B1 = Slow blink (1 dB)

= Lit (3 dB)

Figure 3-37 — Adjust the input audio level

If another input button is pressed and released, the level value for the current input is saved and the level value for the newly selected input is displayed.

TPX 88 Matrix Switchers • Operation 3-21