Precor EFX EFX 5.23 User manual

5.23 Elliptical Fitness Crosstrainer

Page 1

5.23 Elliptical Fitness Crosstrainer

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.

Unauthorized Reproduction and Distribution Prohibited By Law

5.23 Ellipitical Fitness Crosstrainer

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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

5.23, 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:

• To remove power from the EFX 5.23, the power cord must be disconnected from the wall

outlet. Always ensure that the EFX 5.23 is unplugged from the wall outlet when you inspect

or adjust the EFX 5.23, or when you isolate, remove, or replace a EFX 5.23 component.

• 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 5.23

operation.

Caution statements are intended to prevent damage to the EFX 5.23 as a result of the current

activity. Caution statements included in this manual are listed below:

• Notice the orientation notch on the 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 5.23 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 5.23.

• When operating the EFX 5.23, 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.

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• Do not set anything on the handlebars, display enclosure, or cover. Never place liquids on

any part of the EFX 5.23 other than a water bottle in the water bottle holder during normal

operation.

• To prevent electrical shock, keep all electrical components, such as the power cord and

circuit breaker away from water and other liquids.

• 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 5.23.

TOOLS EQUIPMENT

phillips and flat-head screwdrivers anti-static wrist strap (20024-101)

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 interconnect cables

snap ring pliers

100 ft./lb. torque wrench

300 in./lb. torque wrench

belt gauge (part # 20030-117)

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Procedure 2.1 - Accessing the Diagnostic Program

The EFX 5.23 diagnostic software cycles through the following tests:

• Display Test

• Keyboard Test

• Heart Rate Test

• Lift A/D Test

• Brake (eddy current) Test

Procedure

1. Plug the power cord into the wall outlet, then turn on the EFX 5.23 with the on/off switch.

Note:

For the purpose of entering the key sequences to access the various diagnostic programs, the

keypad keys are hypothetically numbered from 1 to 7 from left to right.

2. With the PRECOR EFX 5.23 banner displayed, access the diagnostic program by pressing,

keys RESET,5,1,7,6,5,7,6,1, sequentially.

Diagram 2.1 - 5.23 Display

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3. Watch the display as the LED test progresses. The test is programmed to display the

following LED illumination sequence:

a. The test name “DISPLAY” will be displayed for 2 seconds.

b. The left half of the L.E.D. matrix illuminates.

c. The right half of the L.E.D. matrix illuminates.

d. All remaining L.E.D.’s, including the heart rate and annunciator L.E.D.’s illuminate.

5. Press the ENTER key to proceed to the keyboard test.

6. The test name “KEYBOARD” will be displayed for 2 seconds.

7. A graphical representation of all the keys on the keyboard will be displayed. When a key is

pressed the representation of the key will be turned “off”. Check all of the keys on the

keyboard in this manner.

8. Press and hold the ENTER key for a minimum of 2 seconds to proceed to the heart rate test.

9. The test name “HEART RATE” will be displayed for 2 seconds.

10. A chest strap heart rate transmitter or a heart rate test transmitter must be used in

conjunction with this test. If no heart rate signal is being received, the message NO HR

RCVR will be displayed.

11. When a heart rate signal is being received, unfiltered (U ---) and filtered (F ---) heart rate

signals will be displayed. All of the Smart Rate L.E.D.’s will illuminate.

12. 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 and the

appropriate Smart Rate L.E.D. will flash.

13. Press the ENTER key to proceed to the brake test.

14. The test name “LIFT A/D” will be displayed for 2 seconds.

15. The incline percentage will be displayed on the left and the lift calibration number will be

displayed on the right. The lift calibration number indicates the physical position of the

incline and is used to calibrate the lift motor.

16. The test name “BRAKE” will be displayed for 2 seconds.

17. The resistance level will be displayed on the left side of the display and the corresponding

power bits (duty cycle) will be displayed on the right side of the display. Initially, the power

bits level will be zero, pressing the , keys will change the number of power bits being

applied to the eddy current system.

18. Press the ENTER or RESET key to exit the diagnostics program.

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Procedure 2.2 - Accessing the Information Display

Procedure

1. Plug the power cord into the wall outlet, then turn on the EFX 5.23 with the on/off switch.

2. With the PRECOR EFX 5.23 banner displayed, press keys RESET,6,5, sequentially.

The EFX 5.23 Information display cycles through the following displays:

a. Odometer

b. Hour meter

c. Software version

d. Error log

5. The display name “ODOMETER” will be displayed for 2 seconds. Then the odometer value

will be displayed, as total strides accumulated.

6. Press the ENTER key to proceed to the hour meter display.

7. The display name “HOUR METER” will be displayed for 2 seconds. Then the hour meter

value 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.

8. Press the ENTER key to proceed to the software version display.

9. The display name “SW VERSION” will be displayed for 2 seconds.

10. The upper software version (UPPER X.XX) will be displayed. Pressing either SELECT key

will toggle between the upper and lower software version display.

11. Press the ENTER key to proceed to the error log display

12. The display name “ERROR LOG” will be displayed for 2 seconds.

13. The first error log entry will be displayed (1: ERXX).

14. Pressing the , keys will move you through the log entries. Entry 1 will be the most recent

error log entry, with each succeeding entry being older than the preceding entry.

15. Pressing the SELECT key will toggle the display between the log entry (ERROR), the

odometer reading (STRIDES) when the error occurred and the hour meter (HOURS) when

the error occurred.

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16. 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.

17. Press the ENTER or RESET key to exit the information display program.

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Procedure 2.3 - Accessing the Set User Parameters Display

Selecting United States standard units causes information to be displayed in miles. Information is

displayed in kilometers if metric units are selected. After you select a measurement standard, the

software accumulates and records workout information in the units of the measurement standard

selected.

Procedure

1. Plug the power cord into the wall outlet, then turn on the EFX 5.23 with the on/off switch.

2. With the PRECOR EFX 5.23 banner displayed, press keys RESET,5,6,7,1, sequentially.

3. The display name “SELECT UNITS” will be displayed for 2 seconds.

4. One of two measurement standards will be displayed, U. S. Standard or Metric.

5. If U. S. Standard is selected, weights will be in pounds and distances will be in miles. If

Metric is selected, weights will be in kilograms and distances in kilometers.

6. Pressing any arrow key will toggle the units of measure between US Standard and Metric.

7. Press the ENTER key to save the currently displayed selection and exit the set user

parameters display or press the RESET key to leave the selection unchanged and exit the

set user parameters display.

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Procedure 2.4 - Documenting Software Problems

When a problem is found with either the software or upper or lower PCA’s, record the information

listed below. If you isolated the problem to either the PROM, upper PCA, or lower PCA, include

the information you have recorded with the malfunctioning PROM or PCA when you ship it to

Precor.

When a problem occurs, record the following information:

• Model and serial number

• Software version numbers for upper and lower PCA’s

Note:

Look at the PROM mounted on the upper PCA. A label on the PROM indicates the software

version number. The part number of the PROM indicates the version number.

• User and program number running when the problem occurred

• A description of:

a. What happened or failed to happen.

b. The action taken by the user just before the problem occurred.

c. Problem-related information (such as how far into the program the problem occurred,

the work level being used when the problem occurred, etc.).

• The frequency of occurrence.

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