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Reset, Troubleshooting — if no image appears, Reset troubleshooting — if no image appears – Extron Electronics DTP T USW 233 User Guide User Manual

Page 16: Selecting the, Switch mode, Running or while you power up the switcher (see, Selecting the switch, Mode, To select the switching mode (see, Selecting the switch mode

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DTP T USW 233 • Installation and Operation

11

Selecting the switch mode

NOTE: In the auto-input switching mode that is available from the front panel, the

switcher selects to the highest numbered input with a sync signal present. See the

Front panel mode

SIS commands on page 15 for an auto-input switching low mode,

which selects the lowest numbered input.

Turn auto-input switching mode on and off as follows:

1.

Press and hold the Mode (Input 1) button (see figure 10).

1

2

3

MODE

NORMAL

AUTO

AUTO

SWITCH

Press the and

HOLD the Mode button.

Press and release the Auto or Normal button.

Release the Mode button.

Auto Switch lights (auto)
or goes out (normal).

Figure 10.

Selecting a Mode

2.

Press and release the button for the desired mode
Auto (Input 3) — The Auto Switch LED lights.
Normal (Input 2) — The Auto Switch Active LED goes off.

3.

Release the Mode button.

Front panel security lockout (Executive mode)

The switcher has a front panel lock feature that locks the front panel. If you try to make front
panel input selections when the panel is locked, all front panel LEDs flash three times.
Toggle the front panel lock on and off as follows:

1.

Push and

hold the Input 1, Input 2, and Input 3 buttons simultaneously for 5 seconds.

All front panel LEDs flash three times.

2.

Release the buttons.

When the front panel is locked, contact closure and RS-232 control are still available.

Reset

Use the recessed rear panel Reset button to initiate two levels of reset as follows:
Reset to default settings — Press and hold the reset button for approximately 6
seconds. All front panel LEDs cycle. Release the button. This reset is the equivalent of
issuing the

Reset

SIS command (

E

ZXXX

}

).

Reset to factory default condition — Cycle unit power off and on while holding the reset
button. All front panel LEDs cycle. Release the button.

Troubleshooting — If no Image Appears

1.

Ensure that all devices are plugged in and powered on. The switcher is receiving power
if one of the input LEDs is lit.

2.

Ensure an active input is selected on the switcher or that the switcher is in auto-input
switching 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.