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SERVICE
MANUAL
ADMINISTRATION
Tests - I/O - Touch Screen
Touch TOUCH SCREEN to adjust or verify screen calibration. TOUCH SCREEN opens a
window with two buttons: TOUCH CAL and TOUCH TEST.
If the calibration is so poor that the Touch Screen Test can't be activated from the screen, press
and hold the CHANGE button. Simultaneously turn the ADMINISTRATOR KEY switch. The
Game automatically enters the TOUCH CAL option.
Touch Calibration matches cursor position to touch position. Touch the number 1 in the
window’s bottom left corner. A new window replaces the first. Touch the number 2 in the window’s
top right corner. The screen calibrates to your touch. Then the Tests Menu returns.
Touch Test reveals how well the cursor tracks finger movement. Touch several screen locations.
Notice the “Down” and “Lift” coordinates in the window’s bottom left corner. These report where
your finger touched and rose off the screen. The “Drag” coordinates define where your finger
currently rests on the screen.
Tests - I/O - Sound
This window tests the sound hardware.
Diagnostics There are four sound sample buttons:
• Low Tone
• Warning Tone
• High Tone
• Noise Tone
The LOW TONE, WARNING TONE and HIGH TONE buttons each
test one audio frequency band. The system should reproduce all
sounds at about the same volume. Listen for volume changes,
distortion, missing sounds or intermittent sounds.
The NOISE TONE outputs noise across all audio bands. Listen for an
absence or unusual emphasis of high, low or midrange sound.
Sound Call displays a numeric keypad. This tests sounds at various EPROM locations by entering
addresses. Typical addresses appear in the table Sound Call Test. Depending on which theme is
installed, the machine may include sounds at these addresses. Sound calls can be used to check
volume settings and audio hardware performance. Touch keypad keys to enter each digit of an
address in decimal notation. Touch the arrow to advance to the next digit of the address.
OK will play the selected sound and exit the Sound Call window.
PLAY will play the selected sound and stay in the Sound Call window.
CANCEL will exit the Sound Call window.
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Upright Video 55X Service Manual
Administration
March 2002