Johnson E7000 User manual

E7000 Service Manual
2004/08/29 Ver-1

TABLE OF CONTENTS
SECTION 1: LIMITED WARRANTY……………………………………..1-1
SECTION 2: EXPLODED DIAGRAM…………………………………….2-1
SECTION 3: WIRING DIAGRAM…………………………………………3-1
SECTION 4: TROUBLE SHLOOTING…………………………………...4-1
SECTION 5: PARTS REPLACEMENT……………………………………5-1
SECTION 6: PREVENTIVE MAINTENANCE…………………………...6-1
APPENDIX : RECOMMENDED TOOLS

SECTION 1
LIMITED WARRANTY
1-1
 Comments and Questions………...………..……....………...1-2
 Scope of Warranty…………………….…...........…………1-2
 Intended Use………………………..........……..….……….1-2
 Warranty Period………..……….........…………….1-3
 Defects Replacement…………………………...………….1-3
 Safety Stock of Warranty Parts……………………….......1-3
 Warranty Procedure……………….........………………..1-3
 Technical Support....................................................................1-4

Limited Warranty
Johnson Health Technology Company and its employees are committed to
providing our customers with the state-of-art designed and manufactured fitness
equipment. This Limited Warranty and Service Procedure states JHT’s warranty
policy and warranty procedures.
CommentsandQuestions
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We welcome comments and questions regarding our products. Please contact us at
CustomerService
Johnson Health Technology Company
P.O.BOX 22-100
Taichung,Taiwan,R.O.C
Telephone: [phone]
Facsimile: 886-4-25683456
E-mail:[email protected]
ScopeofWarranty
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All JHT products are warranted against defects in workmanship and materials.
Any repairs to the parts itself, especially the electronics parts, will then void the
warranty unless the rework is authorized in a written format by JHT in advance.
This warranty will also not cover any damage, failure or loss caused by accident,
misuse, neglect, abuse, improper assembly, or failure to follow instructions or
warning in the owner’s manual.
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JHT products may be warranted for just home use only, all distributors are
advised to consult the owner’s manual for the limitations of the application.
1-2

1-3
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Generally, if not otherwise specified, JHT provides one and a half year warranty
for all JHT products starting from the date of production. Warranty coverage for
each product will be detailed in the respective product owner’s manual.
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The distributor should send out the replacement parts without charge within 24
hours for any customer’s warranty claim due to defects of JHT workmanship or
materials and the defects occurs during the warranty period. The distributor
should also send out the replacement with charge within 24 hours for the service
claims due to accident, abuse, neglect, or for the claims with the warranty expired.
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All the importers and distributors are required to keep an inventory of spare parts
especially for those of which are recommended by JHT to service their customers
in time. Distributors are advised to purchase the spare parts at 2%~3% of the total
value of each shipment along with the shipment order or to always keep in their
stock at least 2 to 5 pieces of each spare parts, especially the electronics parts, of
the different model. If there is any importer or distributor failed to do so and wish
that JHT send the replacement parts by express, it will be within JHT’s discretion
how to charge the distributor for both the replacement parts and shipment cost. A
list of recommended spare parts could be provided with the shipment sales
confirmation as long as the request is made to your JHT sales representative and is
contained in the service manual as well. Please refer to the parts list to fill out the
Parts Order Form and send it to your sales representative to order the parts as
required.
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Defective electronics: To receive a credit accordingly, the distributor must collect
the defective electronics, attach a label or tag on the defective part to identify the
following information as a minimum requirements which contain the production
serial number, symptom of failure and the warranty claim number. Send the

1-4
defective electronics back to JHT in a routine basis (monthly is preferred). Fill out
the warranty claim form and send it to JHT.
Defective motors: The distributor may choose by himself the disposition of the
failed motors under warranty. You can either send the motors to your local motor
manufacturer’s authorized dealer for repair or you can remove the name plate,
attaching a label on it to identify the failure symptom and send it back to JHT on a
routine basis (monthly is preferred).
Defective Mechanical Components/Accessories: To receive a credit or the free
replacement parts for the defective mechanical component under warranty, simply
fill out a warranty claim form attached with the photo, graph or other media that
could show us the outlook of the failure. Send all the information to JHT for
approval.
Defect Return:
After finishing the above processes with each kind of component,
the distributors are then required to contact JHT for a returned authorization and
shipping arrangement (This may not be required for the mechanical defects). Once
it is authorized by JHT, the distributor should pack the parts in the most
appropriate way and send the package by the way as advised by JHT.
Issuing Credit: It is within JHT’s discretion to issue a credit or send parts with no
charge to the distributors after the returned parts have been verified to be really
defective. If the parts returned has been verified to be non defective and is good
enough to be used, it will be sent back to the distributor. The distributor will be
responsible for all the shipping cost incurred. No credits will be issued on the
defective returns that can be proved to fail due to misuse, neglect or abuse.
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If you have any trouble in troubleshooting the failures or if you wish to complain
for a mass failure to JHT, you can fill out the Field Failure Report to JHT. JHT will
respond to your report within one day. You may call JHT customer service
department directly as well if you wish, but before doing this it is preferred for you
to send out the forms in advance.

2-1
SECTION 2
EXPLODED DIAGRAM
CONTENTS
 EXPLODED DIAGRAM….…………....….………………..................2-2

2-2

SECTION 3
WIRING DIAGRAM
CONTENTS
CONTROL BOARD WIRING DIAGRAM….…………....….………………...3-2
3-1

E 7000 CONTROL BOARD WIRING DIAGRAM
A2
A4 A1 A3
¾A1 : 3-pin terminal to the electromagnet brake set
¾A2 : 2-pin terminal to the adapter
¾A3 : 3-pin terminal to the console
¾A4: grounding wire to frame
3-2

SECTION 4
TROUBLE SHOOTING
Pedal speed has to be over 30 rpm
CONTENTS
No display on the console or the display is dim……..........………….......….....4-2
No RPM is displayed during the exercise ......…………..……….....4-3
Feel slipping while pedaling………………………………………..4-4
Knocking or creaking noise………………………………………….….4-5
No pulse is displayed on the console (Chest belt type)…………………..……4-6
No pulse is displayed on the console (Handle pulse type).……………….…...4-7
Console diagnostics mode…………..………………………………………..4-8
4-1

No display on the console or the display is dim
Possible causes: Fix:
1. Console is damaged or
the console cable is not
connected properly.
4-2
1. First, Check if the adapter is connected properly for
both input & output ends. Remove the console, then
check if the console cable is connected properly.
Unplug the console cable and use a multi-meter to
check if the voltage on the 1’st and 4’th pin of the
console cable is greater than 5V DC.
2. Poor connection to all
the terminals on the
control board.
3. Control board is
damaged.
4. Generator is damaged.
If it is, replace the console and check again.
2. Open the side covers of the bike and check if all the
wire harnesses are connected properly to the terminals
of the control board.
3. Unplug the console cable from the control board and
check if the voltage on the 1’st and 4’th pin of control
board is greater than 5V DC
If it is, replace console
cable with a new one.
If it is not, next step.
4. Unplug the generator cable
from the control board and
check if the voltage is
variable.
If it is, replace the control board with a new one.
If it is not, replace the generator with a new one.
註解:

No RPM is displayed during the exercise
Possible causes:
1. Console cable is
damaged or the console
cable is not connected
properly.
2. Console is damaged.
3. Speed sensor is
misaligned
4. Poor connection of the
sensor.
5. Sensor is damaged
Fix:
1. Remove the console and check if the terminal of
console cable is connected properly to the console.
If it is not connected well.
¾ Connect the terminal properly.
¾ If cable is damaged, replace it with a new one.
2. Console is damaged, replace it with a new one.
3. Open the side covers of the fitness then replaces the
control board with a new one.
4. Check if the sensor is misaligned. If it is, place the
sensor in the correct position.
5. Open the side covers of the stepper and check if the
connection of the sensor is connected properly.
If it is not connected well.
¾ Connect the terminal properly.
 If cable is damaged, replace this with a new one
6. Sensor is damaged, replace it with a new one
4-3
註解:

feel slipping while pedaling
Possible causes:
1Belt tension is not
enough
4-4
2Poly v Belt is
damaged
Fix:
1Re-adjust the belt tension.
2Replace poly v belt with a new one.
Adjust it

Knocking or creaking noise
Possible causes:
1Pedal is on crank arm
too loose
2Crank or axle is wear
out
3Belt tension is too
loose or poly v belt is
too dirty
4Rail or roller is too
dirty
Fix:
1Re-tighten it.
2Replace it with a new one
3Re-adjust the belt tension and clean the poly v belt
4Clean the rail and roller.
4-5

No pulse display on console (Chest belt type)
Possible causes:
1. Chest belt is not
placed properly.
2. Chest belt is
damaged.
4-6
3. Console is damaged.
Procedure:
1. Place the chest belt in the correct position.
<Remark 1>
2. Replace the chest belt
with a new one.
3. Replace the console
with a new one.
<Remark 1> The correct operation of a Chest Belt.
1.Moisten the electrodes that are located on
both ends of the belt.
2. The belt functions will most effective
when placed close to the heart and to the
skin.

No pulse display on the console (Hand pulse type)
Possible causes:
1. Connection of hand
pulse cable.
2. Hand pulse cable is
damaged.
3. Console is damaged.
Procedure:
1. Remove the console to check if the terminal of hand
pulse cable has been connected to PCB well.
OR
2. Replace the hand pulse cable with a new one.
OR
3. Replace the console with a new one
4-7

Console Diagnostics Mode
STEP 1
STEP 2
STEP 3
STEP 4
1. Sit on your bike, Press and hold down the
"RESET” key then start pedaling to reach a
pedal speed of approximately 30rpm. Dot Matrix
Display will be scanned slowly starting from LEDs
of the bottom row to the top; each segment of the
7-segments will be scanned simultaneously
If one of LEDS is not lit, replace the PCB.
1. Press the ENTER key.
2. Dot Matrix Display will be scanned slowly starting
from LEDs at the leftmost column to the right.
3. Each 7-segments display will be scanned one by
one.
If one of LEDS is not lit, replace the PCB.
1. Press the ENTER key.
2. Dot Matrix and 7-segments will display lighted up
If one of LEDS is not lit, replace the PCB.
1. Press the ENTER key.
2. Dot Matrix Display will show “RPM”.
3. “RPM” window will show current RPM
4. “TIME” window will show total accumulated
minutes and seconds.
5. “AGE” window will show total accumulated hour.
6. Hold down the ”RESET” key first then press
“PAUSE” key to clear the record.
4-8

4-9
Console Diagnostics Mode
SETP 5
STEP 6
STEP 7
STEP 8
1. Press the ENTER key.
2. In the Dot Matrix Display there will be two hearts
on it, which will light up completely in turn
3. “STEPS/MINS” windows will show the current
heart rate while you are wearing a HAND PULSE
SENSOR or POLAR CHEST BELT.
If the heart rate is not shown or not stable in the
display, please refer to section 4-8 ~ section 4-10
1. Press the ENTER key.
2. Dot Matrix Display will show “D/A”.
3. Press “+/-“ key to increase or decrease resistance.
If there is no resistance, please refer to section 4-4~
section 4-5.
1. Press the ENTER key.
2. Dot Matrix Display will show “KEY” on it.
3. Ready for you to enter any key of all 18 keys other
than “RESET” now to verify the function of the
key..
4. The RPM window will show you a reference
number accordingly while pressing a number or
function key.
5. “TIME” window will show you the programming
year of the software.
6. “WORK LEVEL” windows will show you the
programming month and day.
7. “PULSE “ window will show you the software
version.
If any of the keys does not work, please refer to
section 4-3
1. Press the ENTER key. This completes the
procedure.

SECTION 5
Spare Parts Replacement
CONSOLE.......................................………................................................5-2
CONSOLE CABLE.........................................………................................5-3
CONTROL BOARD.............................................………...........................5-4
GENERATOR OR ELECTROMAGNET BRAKE SET..................................5-5
CRANK...................................................................……….…………..........5-6
PEDAL........................................................……….....………..……............5-7
POLY-V BELT 430J6................................................………........…….5-8
POLY-V BELT 430J12.............................................……….....................5-9
PULLEY AXLE…………………..............……………………...…..……….…5-10
AXLE…………………………………………..……...…………………….5-11
RPLLER…………………………………………………….…………………...5-12
SENSOR………………………………………………..……..………...………..5-13
5-1