SCIFIT ISO7000R User manual

1
Table of Contents
Section Page
I. General Information 2-5
II. Theory of Operations 6-8
III. Mechanical Troubleshooting 9-10
IV. Electrical Troubleshooting 11-23
V. Adjustments and Parts Replacement 24-64
VI. Assembly Drawings and Part List 65-82

2
I. General Information
Purpose
This manual provides information for the servicing of SCIFIT ISO7000R
cordless recumbent bikes. It uses systematic troubleshooting procedures
to address problems that may arise with the cordless bikes. The actions
taken to resolve problems must be performed in the order stated.
Deviating from this sequence may cause damage to the equipment, lead
to unnecessary repairs, and/ or void the warranty.
Technical Support
For further assistance in the service of SCIFIT products, please call (800)
745-1373 or [phone]. We can also be reached by fax at (918)
359-2045 or by e-mail at servi[email protected].The Product Support
department is staffed from 7 AM to 6 PM CST Monday through Friday. A
voicemail service is available 24 hours daily for recording messages to
request technical support and to order replacement parts. Our mailing
address is 5151 S. 110
th
E. Avenue, Tulsa, OK 74146.
Please have the following information prior to calling product
support:
•Model number of equipment
•Serial number of equipment
•Point of contact name, address, and phone number
•Detailed description of symptoms encountered
SCIFIT Statement of Warranty
SCIFIT warranties new products against defective workmanship and/ or
materials under normal and proper use subject to the following limitations:
1. SCIFIT’s obligation to the original purchaser shall apply to both
parts and cost of labor required to replace or repair a defective
product for a period of one (1) year from the user purchase date as
documented by the warranty card. If the customer fails to return
the warranty card, the date of shipment from the factory is used.
Thereafter, for a period of two (2) years, such obligation shall
extend only to the supply of replacement parts or products with any
labor costs associated with such replacement or repair to be at the
Buyer’s expense.
2. SCIFIT’s obligation shall be limited to repairing or replacing
defective parts. No allowance shall be granted for repairs made
by Buyer without SCIFIT’s prior written approval. The decision
to replace or repair shall be solely at SCIFIT’s election.

3
3. SCIFIT’s warranty does not apply to parts requiring replacement or
repair due to abnormal wear and tear, improper use, corrosion
(perspiration), improper maintenance, improper rated grounded or
dedicated electrical circuits, or improper storage, nor does it apply
where all or part of the product has been altered from its original
state.
4. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, ARISING BY LAW OR OTHERWISE
INCLUDING WARRANTY OR MERCHANTABILITY OF FITNESS
FOR PARTICULAR PURPOSE, AND IS IN LIEU OF ALL OTHER
LIABILITIES OF SCIFIT INCLUDING DIRECT, INDIRECT,
SPECIAL AND CONSEQUENTIAL DAMAGES OR PENALTIES
EXPRESSED OR IMPLIED WHETHER ARISING OUT OF
CONTRACT, NEGLIGENCE, OR OTHER TORT.
5. Certain wear items are excluded from warranty coverage unless
determined to be defective. These items include, but are not
limited to:
Rubber Grips
Pedal Straps
Seat
6. The following items are covered for a period of one (1) year only:
Pedals
Contact Heart Rate Grips
Heart Rate PCB/ Transmitter
Freight and Shipping
SCIFIT is NOT responsible for the repair or replacement of any unit or part
damaged during transit or installation. Fire, flood, and acts of God are
NOT covered under this warranty. The customer is responsible for
pursuing all freight damage claims with the appropriate transit company.
If the customer signs for freight-damaged goods without noting the
damage on the bill of lading, the customer is solely responsible for
the cost of repair or replacement for such freight damage.
Parts Supply
During the first 30 days, warranty parts will be shipped via next day
overnight delivery, excluding international shipments. Determination must
be made before 2:00 p.m. CST on any given weekday for next day
delivery. After 30 days, parts will be shipped via ground shipment. The
customer is welcome to request overnight or second day parts shipping at
the customer’s expense. If requested, SCIFIT will charge the customer’s
UPS or Federal Express account, or COD the difference in freight cost
between ground shipment and overnight or second day.

4
Return Parts
In order to research problems and ensure they do not reoccur, the
rapid return of defective parts is our biggest help! Thank you in
advance for your assistance.
On electronics orders, a $100.00 core charge is assessed to each printed
circuit board. This amount will be credited once the boards have been
received by SCIFIT. All defective parts must be returned to the SCIFIT
factory within 20 days of receipt of replacement part for invoice credit.
Otherwise, SCIFIT will expect payment on the core charge net 30 days.
Please follow these three (3) easy steps for returning parts:
Step 1: Keep the box and packing material in which the new parts arrived.
Locate the enclosed prepaid UPS return label. The return label is only for
the parts that need to be returned as denoted on the picking ticket.
Step 2: Wrap the defective part and place in the box for a safe return.
Include a copy of the picking ticket that came with the replacement part.
Step 3: When the parts have been packaged, place the prepaid UPS
return label on the outside of the box. Drop the package at any UPS
service center or hand the package to any UPS driver.
When all of the parts are received and inspected at the factory, a credit
will be issued for the original parts invoice. Attention service
companies: Warranty labor invoices will NOT be paid until required
defective parts are returned to the factory.
Installation
SCIFIT is NOT responsible for the repair or replacement of any unit or part
damaged during installation. The customer is responsible for inspection of
each unit and part for damage at the time of installation. The customer is
responsible for pursuing all damage claims with the installer.
Service Labor
Where applicable, SCIFIT Product Support will arrange a local field
service technician to provide field support. Every effort will be made to
schedule service during the two (2) working days following notification of a
problem or as soon as repair parts are available to the field service
technician. Where possible, parts will be supplied in advance of the field
service technicians so that the product is repaired with one (1) call. All
jobs to be performed under labor warranty must have SCIFIT’s prior
written approval or they will not be paid.

5
Preventative Maintenance
After training, always wipe down your SCIFIT exercise product.
Perspiration that continuously settles on the frame, upholstery, casings,
and control panels may eventually cause rust or damage. Damage
resulting from lack of maintenance will NOT be covered under warranty. .
Preventative maintenance, completed according to the schedule below,
will keep your SCIFIT elliptical functioning properly. We realize your time
is valuable and have kept these maintenance items to a minimum.
This preventative maintenance schedule assumes the equipment is
utilized 6 to 8 hours per day. If the equipment is utilized to a greater
extent, the maintenance schedule must be adjusted accordingly.
Machine Weekly Monthly 6 Months Yearly
Cordless
Bikes
Clean exterior.
See Note 1. Check crank and pedal tightness.
See Note 2.
Lubricate seat
track. See Note 5.
Check belt for
fraying.
Lubricate drive
chain. See Note 4.
Clean interior. See
Note 3.
Note 1: Clean the console with a damp cloth. Use mild soap and warm water.
Dry with a clean towel. The rest of the machine can be cleaned using common
household cleaners.
Note 2: IMPORTANT: All pedal crank arms MUST be tightened after eight (8)
hours of initial use to ensure that the crank arms are seated properly. Not
tightening the crank arms upon initial use will loosen the arms and cause
damage. This will void the warranty. To comply with this requirement, simply
tighten the 8mm Allen bolt to approximately 40-45 foot lbs.
Note 3: Clean the interior using a damp cloth. Use mild soap and warm water.
Dry with a clean towel.
Note 4: We use Energy Release® clear gear and chain lube (part no. P018).
Any high quality chain lube will do.
Note 5: We use Super Lube® synthetic grease (item no. 82328). Any high
quality industrial grease will do.

6
II. Theory of Operations
The following is a theory of operation that encompasses all the electrical
components, their functions, and how they interact with each other.
Independent electrical components found in SCIFIT’s Cordless product line:
1. Lower PCB (Power Supply)
2. Upper PCB (Display)
3. Generator/Electromagnetic Brake
4. 12 Volt Battery
5. Wall Pack Receptacle
6. Hand Grip Heart rate PCB (HG HR)
7. Wireless Heart rate PCB (Polar)
Component Functions
1. Lower PCB (Power Supply)
A. Converts the12 to 400 volts AC from the generator into 12 volts DC
using switching power supply technology.
B. Provides 12 volts DC to upper PCB.
C. Accepts 12 volts DC from either the battery or wall pack
transformer if unavailable from the generator
D. Receives Pulse Width Modulation (PWM) signal from the upper
PCB for brake control.
E. Contains Hi-power MOSFET circuitry that controls the brake.
2. Upper PCB (Display)
A. Accepts commands from a user.
B. Displays information to the user.
C. Regulates 12 volts DC from lower PCB down to 8 volts DC and 5
volts DC.
D. Operates the 8 and 5 volt DC serial communications (c-safe and
cardio-key)
E. Provides 5 Volts DC to the contact and wireless heart rate jacks.
F. Receives signals from the contact and wireless heart rate PCB’s.
G. Contains 5 volt DC display (LED) drivers.
H. Contains the 5 volt DC memory and processor components.
I. Provides PWM signal to lower PCB for brake control.
3. Generator/Electromagnetic Brake
Generator:
oA three (3) phase generator that produces 0 to 400 volts AC
depending on the RPM’s.
oProvides AC voltage to the lower PCB.

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Electromagnetic Brake
oAn eddie current transformer that uses rising and collapsing
electromagnetic fields to slow down the generator magnet traveling
through it’s field.
oControlled by the lower PCB.
4. 12 Volt DC Battery
A. 12 volt sealed lead acid 1.3 Amp Hour Battery.
B. Provides 12 Volts DC to lower PCB during:
oPause mode
oBetween intervals
oProvides power for 15 seconds after generator stops.
5. Wall Pack Receptacle
A. 12 volt DC input receptacle that accepts voltage from a DC wall pack.
B. Provides 12 volts DC to lower PCB when a wall pack is connected to it.
C. Aids in battery charging.
6. Hand Grip (Contact) Heart Rate (HG HR) PCB
A. Outputs a square wave to the upper PCB.
B. Equipped with right and left grip inputs.
C. Power and ground is provided by the upper PCB.
7. Wireless Heart rate PCB
A. Outputs a square wave to the upper PCB.
B. Has a 30” range and position is critical.
C. Power and ground is provided by the upper PCB.
System Functions
Starting the Machine
A. Pedaling the machine rotates the generator, which generates a
current to power the electronics. A minimum of 13 RPM or 10 FPM
must be maintained to keep machine powered up.
B. The generator provides AC voltage to the lower PCB. The lower
PCB then provides DC voltage to the upper PCB.
C. The User controls the resistance by selecting a level on the display.
The display sends a PWM signal which varies, depending on the
level selected. The signal travels through the ribbon cable to the
lower PCB. The lower PCB sends a square wave signal to the
transformer on the brake which is proportionate to the amount of
resistance commanded.
D. The brake LED on the lower PCB, labeled D38 on older units and
D19 on newer units, will illuminate any time braking is applied. The
intensity of the LED is proportional to the level of resistance.

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E. The battery is charged anytime there is more than 13 RPM’s
present.
Stopping the unit
A. When pedaling is discontinued, the brake continues to spin.
B. The battery will engage once the actual RPM’s dip below 13.
C. The battery remains active for 15 seconds and then a transistor that
connects the battery to the rest of the lower PCB is unlatched. The
transistor will remain unlatched until the unit sees an rpm value
above 13 RPM’s.
Using the Wall Pack
A. Using the wall pack will allow the machine to be powered up
without pedaling. Quick Start or any other program can be selected
without have to pedal first. The machine will be powered up
constantly when the wall pack is in use.

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III. Mechanical Troubleshooting
A. Mechanical Troubleshooting Table
Problem Possible Reasons Solutions
Pedals wobble when
bike is pedaled. Pedal is loose or stripped
out.
8mm crank bolt is loose.
Spindle crank shaft is
rounded off.
Square tapered hole in
crank arm is rounded
out.
Replace pedal, if threads are
damaged. (P. 54-55)
Tighten 8mm crank bolt. (P. 53)
Replace spindle crank shaft. (P.
56-57)
Replace crank arm. (P. 53)
Pedals lock up while
operating. 6” pulley has moved over
and is rubbing a pem nut
on the monocoque.
Bearing on spindle crank
shaft has seized up.
Realign pulley by loosening the
set screw on pulley collar and
sliding over. (P. 60-61)
Replace bearing. (P. 56-57)
Grinding, rubbing, or
scraping noise while
rotating pedals.
6” pulley has moved over
and is rubbing a pem nut
on the monocoque.
Bad bearing on spindle
crank shaft.
Bad bearing in the brake.
Belt not aligned properly.
Realign pulley by loosening the
set screw on pulley collar and
sliding over. (P. 60-61)
Replace bearing. (P. 56-57)
Replace brake. (P. 51-52)
Realign belt. (P. 58-59)
Clunking noise from
inside the unit. Brake pulley is loose.
6” pulley set screw is
loose on key.
Loose set screw on
bearing collar on spindle
crank assembly.
Replace brake. (P. 51-52)
Loc-tite and tighten set screw on
pulley collar. (P. 60-61)
Loc-tite and tighten set screw on
bearing collar on the spindle
crank assembly. (P. 60-61)

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Problem Possible Reasons Solutions
Unit slips when
pedaled. Belt is loose.
Lower PCB is bad.
Re-tension belt. (P. 60-61)
Replace lower PCB. (P. 32-35)
Clicking noise heard
around pedals. Pedal bearings are bad.
Bad bearing on spindle
crank.
Replace pedal. (P. 54-55)
Replace bearing. (P. 56-51)
Crunching noise is
heard when pedaled. Chain or spindle crank is
misaligned.
Chain is improperly
tensioned.
Bad bearing on spindle
crank shaft.
Bad bearing in the brake.
Realign chain or spindle
sprocket. (P. 56-57)
Re-tension chain.
Replace bearing. (P. 56-57)
Replace brake. (P. 51-52)

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IV. Electrical Troubleshooting
A. Electrical Troubleshooting Table
Problem Possible Reasons Solutions
No lights are showing
on display at idle. Unit is not in use. Start rotating cranks (at least 13
RPMs). Unit will stay lit for 15
seconds after use unless a wall
pack is in use.
No lights on display
when unit is pedaled. Faulty lower PCB.
Faulty upper PCB.
Bad Telco or ribbon cable
connection.
Brake shorted to frame.
See flowchart. (P. 15-16)
See flowchart. (P. 15-16)
See flowchart. (P. 15-16)
See flowchart. (P. 15-16)
Lights on display are
dim. Faulty lower PCB. Replace lower PCB. (P. 32-35)
Lights on display are
frozen. Faulty upper PCB. Replace upper PCB. (P. 24-31)
Lights on display
flicker and / or go dead. Bad Telco or ribbon cable
connection.
Faulty lower PCB.
Faulty upper PCB.
Fix connection or replace cable.
Replace lower PCB. (P. 32-35)
Replace upper PCB. (P. 24-31)
Lights on display go
out as soon as you
stop pedaling or go to
change direction.
Battery is weak.
Bad brake to lower PCB
connection.
Charge battery w/ wall pack. If
problem persists, replace
battery. (P. 32)
Fix connection.
Display resets after
starting a program. Bad Telco or ribbon cable
connection.
13 RPMs not maintained.
Faulty upper PCB.
Fix connection or replace cable.
Maintain 13+ RPMs to keep
display lit.
Replace upper PCB. (P. 24-31)

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Problem Possible Reasons Solutions
Display won’t light up
without using a wall
pack.
Bad brake to lower PCB
connection.
Faulty lower PCB.
Brake shorted to frame.
Fix connection.
Replace lower PCB. (P. 32-35)
Fix short or replace brake. (P.
51-52)
Display is lit up but
values don’t change
when buttons are
pressed.
Overlay and buttons on
upper PCB are not
making contact.
Faulty upper PCB.
Secure overlay to upper PCB by
tightening standoffs or Philips
screws. (P. 24-31)
Replace upper PCB. (P. 24-31)
“PAUSED” is displayed
in top window. PAUSE/CLEAR button
has been pressed during
program.
Press START to resume or
PAUSE/CLEAR to return to start
up screen.
Machine shuts down in
programs but works in
manual mode.
Faulty upper PCB. Replace upper PCB. (P. 24-31)
Can’t select program or
enter information and
there is no beep when
buttons are pressed.
Overlay and buttons on
upper PCB are not
making contact.
Faulty upper PCB.
Secure overlay to upper PCB by
tightening standoffs or Philips
screws. (P. 24-31)
Replace upper PCB. (P. 24-31)
Constant resistance. Faulty lower PCB.
Faulty upper PCB.
Replace lower PCB. (P. 32-35)
Replace upper PCB. (P. 24-31)
Intermittent resistance
or resistance spiking. Bad brake to lower PCB
connection.
Faulty lower PCB.
Faulty upper PCB.
Fix connection.
Replace lower PCB. (P. 32-35)
Replace upper PCB. (P. 24-31)
Resistance is different
than when you received
unit.
Defined unit type has
been changed.
Faulty lower PCB.
Redefine unit type. Call SCIFIT
for procedure.
Replace lower PCB. (P. 32-35)

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Problem Possible Reasons Solutions
No resistance. Bad brake to lower PCB
connection.
Faulty lower PCB.
Faulty upper PCB.
Fix connection.
Replace lower PCB. (P. 32-35)
Replace upper PCB. (P. 24-31)
No heart rate displayed.
(If using contact grips,
see “No contact heart
rate” below).
No chest strap worn.
Faulty chest strap.
Wireless heart rate PCB
is not plugged in.
Faulty wireless heart rate
PCB.
Faulty upper PCB.
Faulty combo heart rate
PCB, if equipped.
Must wear chest strap.
Verify chest strap works.
Check and fix connection to
upper PCB.
Replace wireless heart rate
PCB. (P. 37-42)
Replace upper PCB. (P. 24-31)
Replace combo heart rate PCB.
(P. 48-49)
Heart rate displayed is
very high. Picking up FM frequency
from radio / transmitter.
Picking up another
person’s chest strap.
Faulty combo heart rate
PCB, if equipped.
Faulty upper PCB.
Move radio or transmitter.
Make sure no one with a chest
strap is standing next to your
unit.
Replace combo heart rate PCB.
(P. 48-49)
Replace upper PCB. (P. 24-31)
“---” then “No Heart
Rate Detected” is
displayed in top
window while using the
Heart Rate program.
No chest strap is worn.
Faulty wireless heart rate
PCB.
Faulty combo heart rate
PCB, if equipped.
Faulty upper PCB.
Must wear chest strap.
Replace wireless heart rate
PCB. (P. 37-42)
Replace combo heart rate PCB.
(P. 48-49)
Replace upper PCB. (P. 24-31)

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Problem Possible Reasons Solutions
No contact heart rate is
displayed. Both hands not being
used.
Contact heart rate
doesn’t work on all users.
Bad connection from
contact heart rate PCB to
upper PCB or contact
grips.
Faulty contact heart rate
PCB.
Faulty upper PCB.
Faulty combo heart rate
PCB, if equipped.
Must hold onto both grips.
Verify w/ multiple users that
there is no contact heart rate.
Fix connection.
Replace contact heart rate PCB.
(P. 43-47)
Replace upper PCB. (P. 24-31)
Replace combo heart rate PCB.
(P. 48-49)
Contact heart rate is
very high. Picking up FM frequency
from radio / transmitter.
Picking up reading from
someone’s chest strap.
Faulty contact heart rate
PCB.
Faulty upper PCB.
Faulty combo heart rate
PCB, if equipped.
Move radio or transmitter.
Make sure no one with a chest
strap is standing next to your
unit.
Replace contact heart rate PCB.
(P. 43-47)
Replace upper PCB. (P. 24-31)
Replace combo heart rate PCB.
(P. 48-49)
Contact heart rate is
very low. Faulty contact heart rate
PCB.
Faulty upper PCB.
Faulty combo heart rate
PCB, if equipped.
Replace contact heart rate PCB.
(P. 43-47)
Replace upper PCB. (P. 24-31)
Replace combo heart rate PCB.
(P. 48-49)

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B. Troubleshooting Flowcharts
Although it is impossible to foresee every eventuality, the flowcharts on the
following pages will cover the most common possibilities. If further assistance is
required, please consult SCIFIT SYSTEMS, Inc.
Status Query Action
No Lights
On Display
When
Pedaling
Is there constant
resistance on pedals?
Secure
Yes
Yes
Is three (3) pin
generator cable
secure?
Does display beep
during a button press or when
pedaling is initiated?
Replace lower P B. If
ineffective, replace
upper P B.
No
No
No
Yes
Yes
Is eight (8) pin telco
cable secure?
Six (6) pin telco is insecure:
Replace or Secure.
Brake is shorted to the chassis. Eliminate
short or replace brake.
SecureNo
Use this procedure for ISO7000R’s / serial
numbers 570-005000 thru 570-005256.

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Status Query Action
No Lights
On Display
When
Pedaling
Do you have
the A adapter for
the unit?
Does
display light up
with A adapter
plugged in?
Yes
Secure 3-pin brake
cable connection.
Replace lower P B. If
problem persists,
replace upper P B.
No
Secure ribbon cable
connection.
No
Is 3-pin
brake cable
connected securely
between brake and
lower P B?
Is ribbon
cable connected
securely to both
P Bs?
No
Yes
Secure ribbon cable
connection.
Secure 3-pin brake
cable connection.
Replace lower P B. If
problem persists,
replace upper P B.
No
Yes
No
Is ribbon
cable connected
securely to both
P Bs?
Yes
Is 3-pin
brake cable
connected securely
between brake and
lower P B?
No
Yes
Yes
Use this procedure for ISO7000R’s / serial numbers
570-005257 and above (except units equipped /
Cardio-Key).

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Status Query Action
No
Resistance
Lights on display
while exercising?
Refer To "No Lights On
Display when Pedaling"
Flowchart
No
When in a
program, does display
report RPM's?
Yes
Replace brake.
0 Ohms = Short,
< 1000 Ohms = Open
Is three (3) pin
cable connection
from JP1 to brake
secure?
No
No
Yes
Is resistance
across two (2) pin
brake header 9 -11
Ohms ?
Does Brake LED on
lower P B (D38) illuminate
when brake command is
given?
Replace lower P B.
Yes
No
Yes
No
Yes
Is two (2) pin brake
cable secure?
Secure
Secure
lear EEPROM. If Ineffective,
replace lower P B.
Yes
Is six (6) pin telco
cable secure? No
Replace upper P B.Yes
SecureNo
Use this procedure for ISO7000R’s / serial
numbers 570-005000 thru 510-005256.

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Status Query Action
No
Resistance
Lights on display
while exercising?
Refer To "No Lights On
Display when Pedaling"
Flowchart
No
When exercising
in a program, does
display report
RPM's?
Yes
Replace brake.
0 Ohms = Short,
< 1000 Ohms = Open
Is 3-pin
cable connection
from JP1 to brake
secure?
NoNo
Yes
Is resistance
across two (2) pin
brake header
8 -15 ohms ?
Does PWM
LED on lower P B
illuminate when
exercising in
a progam
Replace lower P B.
Yes
No
Yes
No
Yes
Is
two (2) pin
brake cable
secure?
Secure
Secure
Yes
Is
ribbon cable
secure?
No
Replace upper P B.Yes
SecureNo
All 3 phases
generating voltage at 3-pin
header on brake(measure
VA , frame to
each phase)
See note
Replace
Brake
A voltage
present on all 3 pins of
JP1 lower P B (measure
VA , frame to
each pin)
See note
Replace able
Replace lower
P B
Yes
No
No
Yes
Does Brake
LED on lower P B
illuminate when
exercising in
a progam
Yes
Replace lower P BNo
Note: When measuring
brake voltage on the brake
header or the lower P B the
A voltage depends on the
speed of the brake, which
can range from 0 to 400
VA ~.
Use this procedure for ISO7000R’s / serial numbers
570-005257 and above (except units equipped /
Cardio-Key).

19
Status Query Action
No Contact
Heart Rate
Reading
Are you in Heart
Rate program?
Heart Rate program requires
use of wireless chest strap
transmitter.
Yes
Are both hands
being used on grips
simultaneously?
No
Both hands must be used to
get contact heart rate reading.
No
Each wire
should have
continuity with one silver
plate. ontinuity between
silver plate and opposite
end of contact grip
cable? **
Yes
Is combo
or contact
heart rate P B
plugged securely
into upper
P B?
Yes
Secure connection to combo or
contact heart rate P B and
upper P B.
No
Each wire
connected
securely to the
back of a silver
plate?
No
Secure connection to silver
plates.
No
Replace contact grip cables.Yes
Replace combo or contact
heart rate P B. If problem
persists, replace upper P B.
Yes
** Move cable around when taking continuity readings.
This way if there is a short in the cable, it may be found.

20
Status Query Action
Intermittent
Contact
Heart Rate
Reading
Both hands
kept on contact
grips during
workout?
Both hands must remain on
contact grips to get an accurate
contact heart rate reading.
No
Yes
Each wire
should have
continuity with one silver
plate. ontinuity between
silver plate and opposite
end of contact grip
cable? ** ** Move cable around when taking continuity readings.
This way if there is a short in the cable, it may be found.
Each wire
connected
securely to the
back of a silver
plate?
Secure connection to silver
plates.
Replace contact grip cables.
Is combo
or contact
heart rate P B
plugged securely
into upper
P B?
Replace combo or contact
heart rate P B. If problem
persists, replace upper P B.
Secure connection to combo or
contact heart rate P B and
upper P B.