Manual # 26-0111000-00 / Revision D
ScreenPro PLUS – Multi-Screen Seamless Switcher 49
SYSTEM
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DIAGNOSTICS
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VFD TEST
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PIXEL TEST
This diagnostic test verifies the VFD display hardware by turning on every pixel in sequence. All pixels
should illuminate uniformly. No pixels should be off.
SYSTEM
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DIAGNOSTICS
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JOYSTICK/TBAR TEST
This diagnostic test verifies that the joystick and t-bar are functioning properly. Moving the joystick left
should change the “X” reading from 0 to –100% in small steps. Moving the joystick to the left should
change the”X” reading from 0 to 100% in small steps. Moving the joystick up should change the “Y”
reading from 0 to –100% in small steps. Moving the joystick down should change the “Y” read from 0 to
100% in small steps. Turning the knob counterclockwise should change the “Z” reading from 0 to –100%
in small steps. Turning the knob to the right should change the “Z” reading from 0 to 100% in small steps.
Moving the T-Bar should change the T-Bar reading from 0.0 to 100.0% in small steps.
SYSTEM
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DIAGNOSTICS
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KEY DETECTION TEST
This diagnostic test verifies that the keys are functioning properly. Each time a key is pressed, the row,
column, key name, and “PRESSED” should be reported. Each time a key is released, “PRESSED”
should change to “RELEASED”. The keys are organized into several columns of 8 rows each. The LEFT
arrow key terminates the test.
SYSTEM
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DIAGNOSTICS
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LED TEST
This diagnostic test verifies that the LEDs for all keys are functioning properly. The LEDS are grouped
into two banks, left and right of the T-Bar. This test verifies the left bank and then the right bank. A single
LED is walked through each bank. After that, each group of 16 keys is flashed. Finally, the test ends with
all LEDS illuminated.
SYSTEM
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DIAGNOSTICS
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SCN DETECTION TEST
This diagnostic test verifies which screens in the system are communicating with the Controller. After the
ON/+ key is pressed to start the test, the controller goes out and attempts to communicate with Screens 1
– 6. For each screen it finds, an “OK” message is printed next to the screen number. For each screen Not
Found, a “NF” message is printed next to the screen number. This test will test all six screens regardless
of the number of actual screens installed in the system. When the test is finished, the “DONE” message
will be printed in the lower right corner of the display.
SYSTEM
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DIAGNOSTICS
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TALLY TEST
This diagnostic test will toggle the tally relays to ON, one at a time. When the test is finished, the tallies
will be restored to the original state.
