Service manual

C762, C764, C764i Stairclimber
Page 11
Procedure 2.2 - Performing Keypad and Display Diagnostics
Procedure
1. Plug the power cord into the wall outlet, then turn on the climber with the ON/OFF switch.
2. Units manufactured after May 28, 2000 (software version 6.20) Utilize standard access
codes. See Diagrams 2.1 and 2.2 for key number assignments.
3. On units manufactured prior to May 29, 2000, at the PRESS ENTER FOR PROGRAMS
prompt, press and hold the ENTER key, then press the WORK LEVEL ▲ key until the
DISPLAY TEST message is displayed. The C762 display is shown in Diagram 2.1 and the
C764 display is shown in Diagram 2.2.
4. On units manufactured after may 28, 2000, press keys RESET, 5,1,7,6,5,7,6,1, sequentially.
The C762 display is shown in Diagram 2.1 and the C764 display is shown in Diagram 2.2.
5. Watch the electronic console as the display test progresses. This test is programmed to
display the following LED illumination sequences:
a. A vertical line and then a horizontal line scrolls across the left LED matrix.
b. The display segments on each right side alpha-numeric illuminate simultaneously for
each digit.
c. The LEDs to the left of the first column of functions illuminate, followed by the LEDs to
the second and third column.
4. If the appropriate sections of the electronic console illuminate as described in the previous
step...
THEN... OTHERWISE...
The display test is successful; continue Replace the upper PCA as described
with the next step. in Procedure 7.2.
5. The display will indicate whether heart rate is or is not installed. Press ENTER to continue.
6. When the NO KEYS message is displayed on the electronic console, press each of the keys
listed in the left column of Table 2.1. Verify that the message across from each function key
name is displayed on the electronic console as the key is pressed.
7. If the appropriate messages are displayed on the electronic console when you press the
keys listed in Table 2.1...