Revision B4-18
Troubleshooting: Diagnostic Tests
MAC 5000 resting ECG analysis system
2000657-002
The second test pattern shows 32 color levels. Check for problems with
the overall pattern. (If the system does not have the color option, various
grey scale patterns display.)
Press the enter key to exit the test.
Anti-Aliasing Test Pattern
This test pattern consists of a large square with a series of lines
projecting from the center of the square to the perimeter of the square.
Specifications not currently defined.
Press the enter key to exit the test. Highlight Return and press the enter
key to return to the System Diagnostics menu.
Speaker Test
Use the arrow pad to select Loud or Soft. Press the enter key to produce a
loud or soft tone. (The tone level difference is minimal.)
Highlight Return and press the enter key to return to the System
Diagnostics menu.
Keyboard Test
Press each key and verify that the key is highlighted on the screen and
also displayed at the top of the screen. (It is normal for a dim
background image to remain on the screen when you select the next
key.) The numeric value that displays at the top of the screen is the scan
code representation of the pressed key.
■ Check both of the shift keys by pressing each in combination
with a letter to display a capital letter.
■ Press the center of arrow pad control and verify that the word IN
displays on screen. Press arrows to change the displayed arrow
position. A beep sounds with each arrow press.
■ Press the shift key and the F6 key to exit the test.
NOTE
The display shows keys in the upper part of
the screen that are not presently available on
the keyboard.
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