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Operation, cont’d
TPX 88 Matrix Switchers • Operation3-26
System reset to factory defaults
To reset the switcher to the factory default settings, press and hold the Esc button
on the front panel while AC power is being applied (figure 3-45). System reset
clears all ties and presets and resets all I/O grouping. On the TPX 88 A, system
reset also sets all input audio levels to unity gain (+0 dB).
Power
ESC
ESC
Press and hold the Esc button while
you apply power to the switcher.
The switcher cycles the input and output button
indicators green from left to right, amber from right to left, and red from
left to right and then turns them off.
Continue to hold the Esc button until all input and output buttons return to
either unlit or to background illumination and the Video and Audio LEDs
turn on. Release the Esc button.
Figure 3-45 — System reset
Background illumination
The buttons on the front panel can be set to provide amber background
illumination at all times or the background illumination can be turned off. To
toggle the background illumination on or off, press and hold the Input 1 and
Input 2 buttons for approximately half a second (figure 3-46).
1 2
I
N
P
U
T
1 2
I
N
P
U
T
Press and hold the Input 1 and Input 2
buttons simultaneously to toggle
background illumination mode on or off.
Half second
Release the Input 1
and Input 2 buttons.
Figure 3-46 — Toggle background illumination on or off
When background illumination is on, the button indicators may momentarily
go out intermittently when you are performing front panel operations. This
happens when the switcher is accessing its flash memory and is normal.