Quinton ClubTrack, Service Manual

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The entire display should be off or dark. A corrupted pixel would
be white.
4. Contrast
The contrast changes smoothly from maximum contrast to
minimum. Large jumps in contrast could indicate a failure in the
contrast circuit or LCD.
5. Fluorescent tube brightness test
The tube adjusts to its three possible states, going from bright to
dim to off, then back to bright. The sequence continues until you
press the MENU key.
6. Fonts
The screen displays the alphabet. Garbled characters indicate an
electronics or LCD problem.
HR ClubTrack Plus
™
LCD Contrast
Select the Set Screen Contrast key. After adjusting, press
MENU
to
store the selected value. The setting remains when the treadmill is
turned off. Always adjust the screen contrast after performing the
NV PROGRAM LOAD test—the load test resets the contrast to the
default value.
HR ClubTrack Plus
™
LCD External RS232 Port
Test
The controller automatically tests the RS232 chip during power up
using an internal loop-back test. To test further, connect an
external loop-back connector, then select the RS232 Port Test key.
The loop back connects the transmit out to the receive in, allowing
the controller to verify proper operation through the external
connector. As the test progresses, the LCD displays a series of
messages:
C—1, C—2, C—3, C—P. CEEE
appears if an error
occurs. Remove the loop-back connector after the test is finished.
Testing Pin Signals on the Communications
Cable
Communication cable problems can cause an E204 error message.
Use an ohmmeter to test for the following conditions:
1. Check each wire for continuity from one end of the cable to the
other.
2. Check each wire for a short to another wire.
3. Check each wire for a short to the metal connector housing at
the drive end.
Troubleshooting 3-8