Precor C932i User manual

C932i, C946i Treadmill
20077-112 Page 1
C932i, C946i Treadmill
Warning: This service manual is for use by Precor trained service providers only.
IfyouarenotaPrecorTrainedServicer,youmustnotattempttoserviceanyPrecorProduct;
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,
troubleshooting 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
20039-112

C932i, C946i Treadmill
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Section One - Things you Should Know
The C932i, C946i incorporate new drive motor system and display systems. The drive motor is a
three phase A.C. motor. The drive motor controller converts a single phase A.C. input into three
phase motor control.
Section One, Things You Should Know. This section includes technical specifications. Read
this section, as well as the C932i, C946i Treadmill Owners Manual, before you perform the
maintenance procedures in this manual.
Section Two, Software Features. Precor’s C932i, C946i Treadmills are programmed with
several diagnostic and setup features. This section contains the procedures you need to access
the diagnostic features on this treadmill.
Section Three, Checking Treadmill Operation. This section provides you with a quick way of
checking treadmill operation. Check treadmill operation at the end of a maintenance procedure
and when it is necessary to ensure that the treadmill is operating properly.
Section Four, Inspection and Adjustment Procedures. Perform inspection procedures when
a trouble symptom points to a particular problem and after removing and replacing major
components. Many maintenance problems can be fixed by adjusting various treadmill
components. This section also provides you with the step-by-step procedures required to make
these adjustments.
Section Five, Troubleshooting Procedures. The diagnostic and troubleshooting procedures
contained in this section should be performed when it is necessary to isolate a problem to a
particular component.
Section Six, Replacement Procedures. When a treadmill component must be replaced, go to
this section and follow the step-by-step procedures required to remove and replace the
component.
Section Seven, Technical Diagrams and Parts Lists. This section includes wiring diagrams,
and block diagrams for the C932i, C946i Treadmills.

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Safety guidelines you should know and follow include:
• Read the owner’s manual and follow all operating instructions.
• Operate the treadmill on a solid, level surface.Visually check the treadmill 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 treadmill.
• When operating the treadmill, 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 treadmill, while performing service.
• To prevent electrical shock, keep all electrical components away from water and other
liquids.
• Do not use accessory attachments that are not recommended by the manufacturer-such
attachments might cause injuries.
• Removing the hood exposes high voltage components and potentially dangerous
machinery. Exercise extreme caution when you perform maintenance procedures with the
hood removed.

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General Information
For the latest exploded view diagram, part number and part pricing information, visit the Precor
dealer website at “www.precor.com/connection.

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Procedure 2.1 - Accessing the Diagnostic Software
The treadmill's diagnostic software consists of the following modes:
• Display Test
• Keyboard Test
• Heart Rate Test
• Belt Speed
• Incline
Procedure
1. Plug the power cord into the wall outlet, then turn on the treadmill with the circuit breaker.
2. Using the RESET key and the numeric keypad, press keys RESET,5,1,7,6,5,7,6,1,
sequentially.
3. Hardware Validation will scroll across the display followed by DISPLAY TEST.
Diagram 2.1 - C946i Treadmill Display
Numeric Keypad
,Key
OK Key
Reset Key
Back Key

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Diagram 2.2 - C932i Treadmill Display
4. Press the OK key, the upper most group of LED’s will illuminate on the display. Check the
display to ensure that all LED segments are illuminated.
5. Press the OK key four more times to display the remaining LED groups. Check each display
group to ensure that all LED segments are illuminated.
6. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, KEYBOARD TEST will
scroll across the display.
7. Press the OK key, a representation of all of the keys on the console will be displayed.
Pressing a key on the console will cause the representation of that key to go off. Press all of
the keys on the console to ensure that all of the keys are functioning.
8. Press and hold the Clear key (C932i) or BA.C.K key (C946i) for 3 seconds, then the key,
HEART RATE will be displayed.
,Key
Numeric
Keypad
OK Key
Clear Key
Reset Key

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9. Grasp both of the heart rate grips on the handlebar, after a couple of seconds the heart rate
will be displayed in the heart rate display and flashing heart (C932i) or smart rate bar
(C946i).
10. Use chest strap transmitter or a test transmitter to test the wireless heart rate function, after
a couple of seconds the heart rate will be displayed in the heart rate and smart rate displays.
11. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, BELT SPEED will scroll
across the display.
12. BELT SPEED test. Press the OK key, the console will display the power bits (PWRB), Press
the SPEED key to start the treadmill running belt, the display will indicate the power bits,
the elapsed time and the actual speed (in either miles per hour or kilometers per hour
depending on the club parameters setting, see Procedure 2.3).
13. Press the key, the console will display the motor current (AMPS), the elapsed time and
the actual speed then the key, INCLINE will be displayed.
14. Press the Clear key (C932i) or BA.C.K key (C946i) to exit the belt speed test.
15. INCLINE test. The console will display the analog to digital (A/D) incline position number
and the incline position in percent of incline. Press the inline ,keys to operate the incline
through out its range.
16. Press the Clear key (C932i) or BA.C.K key (C946i) to exit the incline test.
17. If the incline is greater than 0%, AUTOLEVEL will be displayed and the incline will return to
0%.
18. Press the RESET key or the CLEAR key (C932i) or the BA.C.K key (C946i) to exit the
hardware validation test.

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Procedure 2.2 - Displaying Information
The information display will access the following data;
• Odometer
• Hour Meter
• U-Boot Software
• U-Base Software
• Lower Software
• Serial Number
• Usage log
• Error Log
Procedure
1. Plug the power cord into the wall outlet, then turn on the treadmill with the circuit breaker.
2. With the PRECOR banner scrolling, press the keys RESET,6,5, sequentially.
3. DIAGS-INFORMATION DISPLAY will scroll across the display.
4. Use the ,keys to move to the desired display shown in the list above.
5. ODOMETER display. Press the OK key.
6. The odometer will be displayed as 1234567 MILES or 1234567 KM depending on club
parameter settings (See Procedure 2.3). The odometer is also used to provide the “distance
stamp” for the error code log
Note: The odometer data is stored in non-volatile memory on the upper PCA. If the upper PCA
is replaced the odometer data will be lost.
7. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, HOUR METER will be
displayed.
8. HOUR METER display. Press the OK key.
9. The operating time of the unit will be displayed as 12345 HOURS. The operating time is
defined as total amount of time that the unit has operated in program modes with the drive
motor running. The hour meter is also used to provide the “time stamp” for the error code
log.
10. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, U-BOOT SW will be
displayed
11. U-BOOT SW display. This display the installed version of upper boot software. The boot
software is used to upload new software into the upper display PCA.

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12. Press the OK key. The software part number will be displayed as XXXXX-XXX.
13. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, U-BASE SW will be
displayed.
14. U-BASE SW display. This display the installed version of upper PCA software.
15. Press the OK key. The software part number will be displayed as XXXXX-XXX.
16. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, LOWER SW will be
displayed.
17. LOWER SW display. This display the installed version of lower PCA software.
18. Press the OK key. The software part number will be displayed as XXXXX-XXX.
19. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, SER. NUMBER will be
displayed.
20. SER. NUMBER display. Press the OK key.
21. The treadmill’s serial number will be displayed. The serial number may be incorrect or not
displayed if the upper PCA has been replaced. Please note, the serial number function may
not be equipped, if not equipped no serial number will be displayed. The serial number can
be entered via the Windows CSAFE program, see Procedure XX.
22. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, USAGE LOG will be
displayed
23. USAGE LOG display. Press the OK key.
24. Use the ,keys to move through the list of programs. A message will scroll describing the
program, the number of times and the number of minutes the program was used.
25. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, ERROR LOG will be
displayed.
26. ERROR LOG display. Press the OK key, the quantity of errors in the log will be displayed.
27. Press the OK key, the most recent error will be displayed first.
28. Use the ,keys to move through the list of errors. The error messages will list the error
name, the odometer reading when the error occurred, the hour meter when the error
occurred and the drive motor current reading when the error occurred.
29. Press the RESET key to exit the information display.

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Procedure 2.3 - Setting Club Parameters
This procedure allows you to change the following club settings:
• Safety Code
• Select Language
• Select Units
• Set Max Workout Time
• Set Max Pause Time
• Set Cool Down Time
• Set Speed Limit
• Set Incline Limit
• Hidden Programs (C932i only)
• Remote Speed Control
Procedure
1. Plug the power cord into the wall outlet, then turn on the treadmill with the circuit breaker.
2. With the banner scrolling, press keys RESET,5,6,5,1,5,6,5, sequentially.
3. DIAGS-SET CLUB PARAMETERS will scroll across the display.
4. Use the ,keys to move to the desired display shown in the list above.
5. SAFETY CODE display. The safety code, when enabled, makes the user enter a password
in order to start the treadmill. Press the OK key.
6. Use the ,keys to toggle between ENABLED and DISABLED.
7. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, SELECT LANGUAGE
will be displayed.
8. SELECT LANGUAGE display. Press the OK key.
9. Use the ,keys to toggle between the available languages.
10. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, SELECT UNITS will be
displayed.
11. SELECT UNITS display. Press the OK key.
12. Use the ,keys to toggle between U.S (miles per hour) and METRIC (kilometers per
hour).
13. Press the Clear key (C932i) or BA.C.K key (C946i) then the key, SET MAX WORKOUT
TIME will be displayed.