Extron electronic SW6 CV MX AS Memory, Troubleshooting - If no image appears, Operation, cont’d

Operation, cont’d

1. There is one audio level setting per input. The setting is shared by the left and right audio inputs.

2.The audio level settings are stored in non-volatile memory. When power is removed and restored, the audio level settings are retained.

E	E
D B1	D

Viewing and adjusting an audio level

See figure 3-3 and figure 3-4 and the following steps for an example of viewing and adjusting the audio level on a switcher with audio.

B2 C

-1dB

LED key: = off (value 0 dB),

B1 = slow blink (value 1dB),

B2 = fast blink (value 2dB),

= on (value 3dB)

D

CONF./SAVE

E

CONF./SAVE

A

+8dB

LED key:	= off (value 0 dB), B1 = slow blink (value 1dB),		B2
B2	= fast blink (value 2dB),	= on (value 3dB)

B

CONF./SAVE

Figure 3-3 — Viewing the audio level

APress and release an input button to select an input. The associated input LED lights.

BPress and hold the Audio Conf./Save button until the Audio LED starts blinking.

CThe gain or attenuation value is displayed in the input 1 through 5 LEDs. In Figure 3-3, the value +8dB is displayed.

DPress and release the button several times to decrease the audio level displayed in the input LEDs by 1dB per button push. Note the input LED, +dB LED, and -dB LED changes that occur each time the button is pressed and released.

Figure 3-4 shows the result of pressing the button a total of nine times to change the value to -1dB. Note that the +dB LED has turned off and that the -dB LED is on to indicate a negative level.

EPress and hold the Audio Conf./Save button until the Audio LED off. The input LEDs stop displaying the audio level, the +dB and -dB LEDs go off, and the selected input LED lights.

Figure 3-4 — Adjusting the audio level

Audio level reset

To reset the audio level to 0dB for all inputs, press and hold the Audio Conf./Save button for approximately 10 seconds. The Audio LED begins to blink and then turns off. Release the Audio Conf./Save button.

Memory

Audio and switch mode settings are saved in nonvolatile memory. When the switcher is powered off, the settings are retained. When the switcher is powered on, the saved memory settings are active. The selected input is not a saved value; when the switcher is powered on it defaults to input 1.

If an auto-sync detect model switcher is powered off in auto mode, it automatically switches to the highest- numbered input with video sync pulses present when it is powered back on. If no input has video present, all input select LEDs are off (only the Power LED is on).

Troubleshooting — If no image appears

1.	Ensure that all devices are plugged in and powered on.
	The switcher is receiving power if the front panel Power
	LED is lit.
2.	Ensure an active input is selected on the switcher or that
	the switcher is in auto-sync mode.
3.	Ensure that the proper signal format is supplied.
4.	Check the cabling and make corrections as necessary.
5.	Call the Extron S3 Sales & Technical Support Hotline if
	necessary.

3-6 Audio/Video Switchers • Operation Audio/Video Switchers • Operation 3-7