Precor C532i User manual

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C532i, C536i, C556i Navy Elliptical Fitness Crosstrainer
Warning: This service manual is for use by Precor trained service providers only.
If you are not a Precor Trained Servicer, you must not attempt to service any Precor Prod-
uct; Call your dealer for service.
This document contains information required to perform the majority of troubleshooting, and
replacement procedures required to repair and maintain this product.
This document contains general product information, software diagnostic procedures (when
available), preventative maintenance procedures, inspection and adjustment procedures, trou-
bleshooting procedures, replacement procedures and electrical block and wiring diagrams.
To move directly to a procedure, click the appropriate procedure in the bookmark section to the
left of this page. You may “drag” the separator bar between this page and the bookmark section
to change the size of the page being viewed.
© 2007 Precor Incorporated
Unauthorized Reproduction and Distribution Prohibited By Law
20039-156

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Section One - Things You Should Know
Right, Left, Front, and Back Conventions
In this manual, right, left, front, and back are from the perspective of a user standing on the EFX
C532i, C556i Navy, facing the display enclosure.
Warning and Caution Statements and General Safety Guidelines
Warning statements indicate a particularly dangerous activity. Warning statements you will find in
this manual include:
• Removing the covers exposes high voltage components and potentially dangerous
machinery. Exercise extreme caution when you perform maintenance procedures with the
hood removed.
• During service operations you will be very close to moving machinery and high voltage
components. When you perform maintenance procedures with the covers removed, remove
jewelry (especially from ears and neck), tie up long hair, remove neck ties, and do not wear
loose clothing.
• Exercise caution when touching any wire or electrical component during EFX operation.
Caution statements are intended to prevent damage to the EFX as a result of the current activity.
Caution statements included in this manual are listed below:
• Notice the orientation notch on the lower PCA PROM. These components must be
positioned with the same notch orientation.
Safety guidelines you should know and follow include:
• Read the owner’s manual and follow all operating instructions.
• Visually check the EFX before beginning service or maintenance operations. If it is not
completely assembled or is damaged in any way, exercise extreme caution while operating
and checking the EFX.
• When operating the EFX, do not wear loose clothing. Do not wear shoes with heels or
leather soles. Check the soles of your shoes and remove any embedded stones. Tie long
hair back.
• Do not rock the unit. Do not stand or climb on the handlebars, display enclosure, or cover.
• Do not set anything on the handlebars, display enclosure, or cover. Never place liquids on
any part of the EFX other than a water bottle in the water bottle holder during normal
operation.
• To prevent electrical shock, keep all electrical components away from water and other
liquids.

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• Do not use accessory attachments that are not recommended by the manufacturer-such
attachments might cause injuries.
General Information
For the latest exploded view, part number and part pricing information, visit the Precor dealer
website at “www.precor.com/connection”.

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Required Tools and Equipment
The following list is a summary of the tools and equipment required when you service Precor’s
EFX.
TOOLS EQUIPMENT
phillips and flat-head screwdrivers digital multimeter
standard and metric allen wrench sets
open-end wrench set Supplies
blue loctite
drive ratchet and ratchet set
socket drive allen set cable ties
chip puller Spares
rubber mallet data cables
snap ring pliers
100 ft./lb. torque wrench
300 in./lb. torque wrench
automotive belt tension gauge

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Procedure 2.1 - Accessing the Hardware Validation Program
The EFX diagnostic software cycles through the following tests:
Hardware Validation
Display Test
Keyboard Test
Heart Rate
Brake
RPM
Battery
Procedure
Note:
Use the RESET key and the ten key keypad to enter the access code.
1. Access the diagnostic program by pressing, keys RESET,5,1,7,6,5,7,6,1, sequentially.
Diagram 2.1 - C532i Display
Arrow Keys
OK Key
Cancel Key

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Diagram 2.2 - C556i Navy Display
2. The test name HARDWARE VALIDATION will scroll once across the display.
3. The test name “DISPLAY” will be displayed. Press the OK key to enter the display test or an
, key to proceed to a different test.
4. Each time you press the OK key a different block of LED’s will illuminate. Check each LED
in each block to ensure that all are functioning. As you move through the LED blocks, one
press of the OK key will cause all of the LED’s to be off.
5. Press the CANCEL key (532i) or the BACK key (C56i Navy) to proceed to the keyboard
test.
6. The test name “KEYBOARD” will be displayed. Press the OK key to enter the keyboard test
or an , key to proceed to a different test.
7. A graphical representation of all the keys on the keyboard will be displayed. When a key is
pressed the representation of the key on the display will be turned “off”. Check all of the
keys on the keyboard in this manner.
8. Press and hold the CANCEL key (C532i) or BACK key (C556i Navy) for several seconds to
proceed to the heart rate test.
556I
Arrow Keys
Back Key OK Key

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9. The test name “HEART RATE” will be displayed. Press the OK key to enter the heart rate
test or an , key to proceed to a different test.
10. Both the hand held heart rate and wireless heart rate function must be tested. A chest strap
heart rate transmitter or a heart rate test transmitter must be used to test the wireless heart
rate function.
11. When a heart rate signal is received, the unfiltered and filtered heart rates will be displayed.
In addition the Polar heart rate will be displayed in the “Heart Rate” window. The red heart
and the smart rate LED’s will illuminate.
12. Press the CANCEL key (532i) or the BACK key (C56i Navy) to proceed to the brake test
(C532i) or machine test (C556i Navy).
13. If you are testing a C556i Navy EFX skip to step 21, if you are testing a C532i continue with
step 14.
14. The test name “BRAKE” will be displayed. Press the OK key to enter the brake test or an ,
key to proceed to a different test.
15. Powerbits will be displayed in the upper window and the resistance level will be displayed in
the lower middle window. Pressing the resistance , keys will change the number of
power bits being applied to the eddy current system., ranging from 60 to 170 powerbits.
Because this is a self powered EFX, you must pedal fast enough to keep the EFX powered
up and the resistance up, otherwise the powerbits will bo below the selected setting.
16. Press the CANCEL key to proceed to the RPM test.
17. The test name “RPM” will be displayed. Press the OK key to enter the RPM test or an , 
key to proceed to a different test.
18. The current RPM will be shown as “PULSE XX”. The pulses are updated in real time and
will display the actual pulse count.
19. Press the CANCEL key to proceed to the battery test.
20. Skip to step 25.
21. The test name “MACHINE TEST” will be displayed. Press the OK key to enter the brake
test or an , key to proceed to a different test.
22. The test name “BRAKE” test will be displayed.
23. The powerbits will be displayed as PWRB XX. Press the BACK key to proceed to the RPM
test.
24. The revolutions per minute will be displayed as RPM XX. Press the BACK key to proceed to
the CROSSRAMP test.
25. The test name “CROSSRAMP” will be displayed. Press the OK key to enter the crossramp

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test or an , key to proceed to a different test.
26. The A/D number (incline position number) will be displayed as A/D XX. Press the CANCEL
key (532i) or the BACK key (C56i Navy) to proceed to the auto level test.
27. The test name “AUTO LEVEL” will be displayed. Press the OK key to enter the auto level
test or an , key to proceed to a different test.
28. The auto level incline position will be displayed, press an , key to change the auto level.
29. Press the CANCEL key (532i) or the BACK key (C56i Navy) to proceed to the battery test.
30. The test name “BATTERY” will be displayed. Press the OK key to enter the battery test or
an , key to proceed to a different test.
31. The battery voltage will be displayed as “XX.X VDC”.
32. Press the CANCEL key to return to the Display test or the RESET key to exit.
33. You may press the RESET key at anytime in the hardware validation program to exit the
hardware validation program.

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Procedure 2.2 - Accessing the Information Display
Procedure
1. With the PRECOR EFX banner displayed, press keys RESET,6,5, sequentially.
Diagnostics Test
Odometer
Hour meter
U-Boot Software version
U-Base Software version
Lower software version
Metrics Board SW Part Number (C532i only)
Serial Number
Usage Log
Error log
2. The test name “DIAGS - INFORMATION DISPLAY” will scroll once across the display.
Press the OK key to proceed to odometer or use the , keys to proceed a different
display.
3. The display name “ODOMETER” will be displayed, press the OK key, the odometer value
will be displayed, as total strides accumulated.
4. Press the CANCEL (C532i) or the BACK (C556i Navy) key to proceed to the hour meter
display.
5. The display name “HOUR METER” will be displayed, press the OK key, the hour meter will
be displayed, as the total number of hours of use. Fractional parts of an hour are stored
internally, the display will be truncated to the nearest full hour.
6. Press the CANCEL (C532i) or the BACK (C556i Navy) key to proceed to the U-Boot SW
display.
7. The display name “U-BOOT SW” will be displayed, press the OK key, the U-Boot software
part number will be displayed.
8. Press the CANCEL (C532i) or the BACK (C556i Navy) key to proceed to the U-Base SW
display
9. The display name “U-BASE SW” will be displayed, press the OK key, the U-Base software
part number will be displayed.
10. Press the CANCEL (C532i) or the BACK (C556i Navy) key to proceed to the Lower SW
display.
11. The display name “LOWER SW” will be displayed, press the OK key, the lower software
part number will be displayed.

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12. Press the CANCEL (C532i) key to proceed to the Metrics board SW display or the BACK
key (C556i Navy) to proceed to the serial number display, skip to step.16.
13. The display name “METRICS BOARD SW PART NUMBER will be displayed, press the OK
key, the metrics board software part number will be displayed.
14. Press the CANCEL (C532i) or the BACK (C556i Navy) key to proceed to the serial number
display.
15. The display name “SERIAL NUMBER” will be displayed, press the OK key, the serial
number will be displayed. If the serial number is not present it can be uploaded per
Procedure 2.5.
16. Press the CANCEL (C532i) or the BACK key (C556i Navy) key to proceed to the usage log
display.
17. The display name “USAGE LOG” will be displayed, press the OK key.
18. The program used and the time the program was used will be displayed.
19. The keys , will scroll you through the list of programs that have been used.
20. Press the CANCEL (C532i) or the BACK (C556i Navy) key to proceed to the error log
display.
21. The display name “ERROR LOG” will be displayed, press the OK key.
22. The first error log entry will be displayed “1: ERXX XX STRIDES XX HRS”.
23. Pressing the , keys will move you through the log entries. Press the OK key to view the
selected error. Entry 1 will be the most recent error log entry, with each succeeding entry
being older than the preceding entry.
24. If the error log is empty “NO ERRORS” will be displayed.
25. Pressing and holding the QUICK START key for 2 seconds will cause the prompt CLEAR?
to be displayed, holding the QUICK START for an additional 2 seconds will clear all existing
entries from the error log. The display will confirm that the error log has been cleared by
displaying OK. The display will revert to the first log entry and show it as a null entry (1: ---).
If the QUICK START key is not held for a minimum of 4 seconds, the error log will not be
cleared.
26. Press the RESET key to exit the diagnostics display program.