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1
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FILE No.
SERVICE MANUAL
REFERENCE NO. SM6510607-00
Chair Type Massager
(Massage Lounger)
HEC-DR8700
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2
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Specifications
HEC-DR8700
200 - 290 W
33 W
AC Local voltage 50/60 Hz
30 minutes
730 mm (28
3
/4") [width] x 1,370 mm (53
7
/8") [depth] x 1,220 mm (48") [height]
* When upright (with foot rest retracted)
730 mm (28
3
/4") [width] x 1,940 mm (76
3
/8") [depth] x 760 mm (29
7
/8") [height]
* When reclined (with foot rest set horizontally)
(5 stages) Approx. 63 - 140 mm (2
3
/8" - 5
1
/2")
One up/down pass in approx. 34 sec.
Approx. 2.1 m (82
5
/8")
No gradation or Approx. 1 cm (
3
/8") / one press of button
Approx. 120 - 170 degrees
Back rest : Motor-driven type (Linked with foot rest)
Foot rest : Motor-driven type (Foot rest only)
Seat surface : Motor-driven type (Linked with back rest and foot rest)
(3 stages) Approx. 11 - 28 kPa
Approx. 780 mm (30
5
/8")
(Vertical stroke length : Approx. 660 mm) (25
7
/8")
Stand, Installation screws (Three)
Synthetic leather
(5 stages) Approx. 9 - 24 times/min.
Power consumption
Power dissipation of electric heating equipment
Power source
Rating time
Dimensions
Cord length
Approx. 90 kg (198 lbs.)Weight
Massager rollers up/down range
Height adjustment of
massaging rollers
Reclining angle
Reclining method
Lower body massaging
(Air pressure)
* There is a slight difference according to the part.
Accessories
Upholstery
Vertical movement speed
Partial stretching(Partial) :Repetition within Approx.210mm (8
1
/4")
Partial stretching(Focus) :Repetition within Approx.110mm (4
3
/8")
Frequency
Width
Gripping
(5 stages) Approx. 10 - 30 times/min.
Kneading(up/down)
(5 stages) Approx. 300 - 600times/min.Tapping
(5 stages) Approx. 4 - 14 times/min.Shiatsu
Tapping
(5 stages) Approx. 63 - 140 mm (2
3
/8" - 5
1
/2")
Spine stretching
Range of partial stretching
(MANUAL COURSES) Approx. 15 minutes
Timer
(WHOLE BODY SENSOR AUTOMATIC COURSES)
FULL AUTO
Approx. 17 minutes
STIFFNESS, RECOVERY, RELAX Approx. 15 minutes
QUICK Course
Approx. 8 minutes
(Maximum of Approx. 20 minutes due to stiffness detection)
(AUTOMATIC COURSES)
Approx. 15 minutes
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3
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Block Chart
HEC-DR8700
Reclining motor
(Foot rest)
Reclining motor
(Back rest)
Body pressure
detection
Protrusion detection
(Motor strength)
Massage pulse
detection
Massage home position
detection
Tapping pulse
detection
Elevation detection
(Motor elevation)
Limit switch
(Reclining motor seat)
Limit switch
(Reclining motor back rest)
Limit switch
(Reclining motor foot rest)
Operation
Stress sensor
Stiffness sensor
Air bags
(Waist and Seat right)
Air bags
(Waist and Seat left)
Air bags
(Leg shiatsu right/left)
Air bags
(Leg pinching inside/outside right/left)
Air bags
(Ankle pinching right/left)
Air bags
(Foot shiatsu back/forth right/left)
Air bags
(Foot shiatsu middle right/left)
Air bags
(Foot pinching inside right/left)
Air bags
(Foot pinching outside right/left)
Operation
Display
For input of working signals
For detecting degree of stiffness
by amount of perspiration
For detecting degree of
stress by pulse fluctuations
For input of working signals
For expression of working
condition
Limit switch
(Elevation)
Limit switch
(Back rest)
Thermistor
(Heater sole)
For detecting the end of upper and
lower of reclining motor (seat)
For detecting the end of upper and
lower of reclining motor (back rest)
For detecting the end of upper and
lower of reclining motor (foot rest)
For detecting the upper end
of massage unit
For detecting abnormal
inclination of back rest frame
For detecting
temperature of heater (sole)
Thermistor
(Room temperature)
For detecting temperature
of room (LOW mode)
For detecting body pressure by
volume resistance (volume rotary)
For detecting RPM and rotating
direction of motor (strength)
(Hole IC IC-931/932)
For detecting pulse of motor
(massage) (Hole IC IC-901)
For detecting the home position
of massage arms (Hole IC IC-902)
For detecting pulse of motor
(tapping) (Hole IC IC-921)
Limit switch
(Strength)
For detecting RPM and rotating
direction of motor (elevation)
(Hole IC IC-911/912)
For detecting maximum
protrusion of massage unit
Motor
(Elevation)
<Remote Control>
<Sensor Controller>
Heater (Sole)
Motor
(Strength)
Motor
(Massage)
Massage
unit
Control
unit
Motor
(Tapping)
Motor for elevation of
massage unit
Motor for protrusion of
massage unit
Motor for massage
Motor for tapping
Reclining motor
(Seat)
Motor for moving the
foot rest up and down
Motor for reclining
the back rest
Heater for warming
the foot sole
Motor for reclining
the seat
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Wiring Diagram (for LOW voltage)
HEC-DR8700
CN906
CN921
CN905
CN902
CN904
CN903
CN911
CN901
CN931
CN13CN1 CN10
CN12
CN7CN5CN11 CN4CN2 CN3
CN15 CN14CN8
CN6
CN9
CN202CN201 CN203
CN209 CN207CN213CN214 CN215
CN211CN212
CN206CN208
CN205 CN204
CN301
CN702
CN703
CN210 CN216
Air Pump
Reclining Motor (Foot Rest)
Motor
Reclining Motor (Back Rest)
Limit SW(UPPER)
(Elevation)
Limit SW (LOWER)
(Back Rest)
Transformer
Printed board
(Massage Pulse)
Printed board
(Elevation Pulse)
Printed board
(Strength Pulse)
Printed board
(Tapping Pulse)
Volume Rotary
( Body Pressure)
Limit Switch (UPPER)
(Strength)
Motor (Elevation)
Stiffness Sensor
Stress Sensor
(Sensor Controller)
(Remote Control)
Printed board
(Sensor Controller)
Printed board
(Remote Control)
Printed board (Main)
Heater (Sole)
Thermistor
Printed board (Power)
Motor (Strength)
Motor (Massage)
Motor (Tapping)
Valve (No.8)
Valve (No.9)
Valve (No.7)
Valve (No.6)
Valve (No.5)
Main Harness
Valve (No.4)
Valve (No.3)
Valve (No.2)
Valve (No.1)
Switch
Motor
Switch
Motor
Switch
Reclining Motor (Seat)
Power Switch
TAIWAN
ONLY
Transformer
AC
CN701
Fuse
(250V 4A)
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5
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Wiring Diagram (for HIGH voltage)
HEC-DR8700
CN906
CN921
CN905
CN902
CN904
CN903
CN911
CN901
CN931
CN13CN1 CN10
CN12
CN7CN5CN11 CN4CN2 CN3
CN15 CN14CN8
CN6
CN9
CN203CN201 CN202
CN209 CN207CN213CN214 CN215
CN211CN212
CN206CN208
CN205 CN204
CN301
CN702
CN703
CN210 CN216
Air Pump
Reclining Motor (Foot Rest)
Motor
Reclining Motor (Back Rest)
Limit SW(UPPER)
(Elevation)
Limit SW (LOWER)
(Back Rest)
Transformer
Printed board
(Massage Pulse)
Printed board
(Elevation Pulse)
Printed board
(Strength Pulse)
Printed board
(Tapping Pulse)
Volume Rotary
( Body Pressure)
Limit Switch (UPPER)
(Strength)
Motor (Elevation)
Stiffness Sensor
Stress Sensor
(Sensor Controller)
(Remote Control)
Printed board
(Sensor Controller)
Printed board
(Remote Control)
Printed board (Main)
Heater (Sole)
Thermistor
Printed board (Power)
Motor (Strength)
Motor (Massage)
Motor (Tapping)
Valve (No.8)
Valve (No.9)
Valve (No.7)
Valve (No.6)
Valve (No.5)
Main Harness
Valve (No.4)
Valve (No.3)
Valve (No.2)
Valve (No.1)
Switch
Motor
Switch
Motor
Switch
Reclining Motor (Seat)
Power Switch
Transformer
AC
CN701
Fuse
(250V 4A)
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HEC-DR8700
Air Wiring
Air tank
Air pump
Valve ass'y
Valve ass'y
Air bag position
Valve ass'y / Air pump position
4
3
2
1
8
9
7
8
9
9
8
7
3
3
4
4
4
4
2
6
6
1
1
5
5
2
2
2
7
6
5
compressing
Air pump
Air tank
decompressing
1
Valve
(Foot shiatsu, middle)
1
Air bag
(Foot shiatsu, middle)
1
Air bag
(Foot shiatsu, middle)
2
Air bag
(Foot shiatsu,
back and forth)
2
Air bag
(Foot shiatsu,
back and forth)
3
Air bag
(Leg shiatsu)
9
Air bag
(Waist, left)
3
Air bag
(Leg shiatsu)
9
Air bag
(Seat, left)
2
Valve
(Foot shiatsu,
back and forth)
3
Valve
(Leg shiatsu)
9
Valve
(Waist and Seat, left)
4
Valve
(Leg pinching,
inside, outside)
Exhaust
Exhaust
Exhaust
Exhaust
Exhaust
Exhaust
Exhaust
Exhaust
4
Air bag
(Leg pinching,
inside, outside)
4
Air bag
(Leg pinching,
inside, outside)
5
Air bag
(Foot pinching, inside)
5
Air bag
(Foot pinching, inside)
6
Air bag
(Foot pinching, outside)
6
Air bag
(Foot pinching, outside)
8
Air bag
(Waist, right)
8
Air bag
(Seat, right)
6
Valve
(Foot pinching, outside)
5
Valve
(Foot pinching, inside)
8
Valve
(Waist and Seat, right)
7
Air bag
(Ankle pinching)
7
Air bag
(Ankle pinching)
7
Valve
(Ankle pinching)
Exhaust
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HEC-DR8700
Air Massage
Photo-2Photo-1
OUT-
SIDE
IN-
SIDE
OUT-
SIDE
IN-
SIDE
3 Air bag
Foot pinching, outside
3 Air bag
Foot pinching, outside
1 Air bag
Foot shiatsu
1 Air bag
Foot shiatsu
2 Air bag
Foot pinching, inside
1
2
3
4
5
6
7
8
9
Foot shiatsu, middle
Foot shiatsu, back and forth
Leg shiatsu
Leg pinching, inside and outside
Foot pinching, inside
Foot pinching, outside
Ankle pinching
Waist and Seat, right
Waist and Seat, left
1. The air massager is composed of an air pump, an air tank and valves (Photo-2), and 22 air
bags (photo-1) contained in foot, leg, seat and waist massaging components and of air
hoses (photo-2) connecting among them, all of which are located under the seat.
2. Air pressured by means of the air pump is supplied to the individual air bags by switching
among the valves.
3. In massaging, the process of two steps is repeated; 1) pressing and finger-pressurizing
feet and legs by air bags expanded with filled air and 2) decompressing the air bags by
discharging air from the valves.
4. Strength of air massaging is changed by changing the air bags elasticity due to operating
the air pump to three stages (strong/medium/weak).
Structure of air massaging component for lower extremities
1. Soles massaging has the two process; 1) foot is pinched by airbags (2 Foot pinching-inside
/ 3 Foot pinching-outside) and 2) foot is pushed by air bags (foot shiatsu).
2. Your foot is moved by swelling air bags (2 Foot pinching-inside / 3 Foot pinching-outside)
alternately. Outside and inside of soles are massaged effectively.
SOLE WARMER will warm your feet by heater (sole).
The SOLE WARMER mode changes as follows each
time the SOLE WARMER button is pressed.
When the sole warmer is in LOW mode, the heating temperature is adjusted automatically
based on the room temperature.
Room temperature is high --- Heating temperature is set to LOW.
Room temperature is low --- Heating temperature is set to HIGH.
Sole shiatsu
Sole warmer
The location of the built-in air bags is extended to the heel, to grip a wide range from the
ankles to the heel and provide a massage similar to how the palm of a hand loosens stiffness.
Ankle grip massage
HIGH LOW OFF
(Lit) (Lit)
(Neither lamp is lit)
Air tank
Air pump
Valve ass'y
Valve ass'y
4
3
2
1
8
9
7
8
9
9
8
7
3
3
4
4
4
4
2
6
6
1
1
5
5
2
2
2
7
6
5
Air hoses
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8
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HEC-DR8700
Massage Motors
4,
Elevation motor
1
4
4
3
3
22
2,Massage motor
3,
Strength motor
1,Tapping motor
1,
Tapping
motor
This motor rotates to move the massage rollers upward and downward alternately
via the driving belt coupled to the motor.
(The motor revolutions is adjustable in five steps so that the tapping frequency
can be changed over to approximately 300-600 cycles/minute.)
2, Massage motor
This motor rotates to move the massage rollers crosswise via the driving belt and
gear box coupled to the motor.
(The motor revolutions is adjustable in five steps so that the massaging frequency
can be changed over to approximately 10-30 cycles/minute.)
(When tapping, shiatsu and spine stretching, the massage rollers width (rollers moving
range) can be changed over in five steps.)
(Massage rollers width approximately 63-140 mm.)
3, Strength motor
This motor rotates to transmit its rotating torque to the shaft screw via the driving
belt, whereby the massage unit is moved forward, and backward and the massage
rollers is moved forward and backward.
(This motor rotates clockwise and counterclockwise to thereby move the massage
unit forward and backward.)
(When gripping, tapping, kneading, shiatsu and spine stretching , the
massage unit
position can be changed over in five steps.)
4, Elevation motor
This motor rotates to transmit its rotating torque to the gear of right and left of a
massage unit the driving belt.
The gear is included in right and left of a back frame. It has geared with the gear of
right and left of a massage unit.
This motor rotates, a gear on either side rotates and a massage unit moves up and
down in the gear top of a back frame.
(This motor rotates, clockwise and counterclockwise to thereby move the massage
unit move up and down.)
(When shoulder adjust and spine stretching, the massage unit is moved up and down.)
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HEC-DR8700
Reclining Motors
<BEST POSITION>
3
1
2
1
Reclining motor
(back rest)
3
Reclining motor
(seat)
Reclining motor
(foot rest)
2
BEST POSITION 1 BEST POSITION 2
Button
At BEST POSITION
Illuminates
Illuminates
Illuminates
Illuminates
Flashes
Flashes
During the reclining motion
When you stop reclining
Lamp
BEST POSITION 3
BEST POSITION 1 BEST POSITION 2
Reclining motor
Press the BEST POSITION button.
When press the BEST POSITION button, the seat will move to the inclination of 30 degrees
and the back rest, seat and foot rest will move automatically to their preset angles.
Posture suited for whole
body massaging
Reclining motor (back rest)
The back rest will raise and recline by the
reclining motor (back rest).
*When the RECLINING buttons (up/down)
is pressed, the back rest and the foot rest
will move in conjunction.
Reclining motor (seat)
The seat will raise and recline by the reclining motor (seat).
*When the BEST POSITION button is pressed, the seat, the back rest and the foot rest
will move in conjunction. (It is not possible to adjust only the seat.)
*Excluding AUTOMATIC COURSES-STRETCH course, when the RECLINING buttons
(up/down) is pressed with the seat raised, the seat is lowered.
Reclining motor (foot rest)
The foot rest will raise and lower by the
reclining motor (foot rest).
*The foot rest can be moved separately by
FOOT REST buttons (up/down).
(At this point, the back rest and seat do not
move.)
Reclining position change automatically at each press of the button.
* Reclining can be stopped during the reclining motion by pressing either the BEST
POSITION button, HOME POSITION button, RECLINING button, FOOT REST button,
OPERATION ON/OFF button or STOP button.
Posture suited for lower
body and air massaging
BEST POSITION 3
* Automatically starts massaging
in Air Course.
(massage courses other than COMFORT AIR
COURSE and STRETCH cannot be selected).
Posture suited for stretching
* STRETCH course massage will
be selected automatically.
(massage courses other than COMFORT AIR
COURSE and STRETCH cannot be selected).
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HEC-DR8700
Operation of Stress and Stiffness Detecting Sensors
The sensor employs two types of sensors; a STRESS sensor and a STIFFNESS sensor for
monitoring two physiological factors (pulse fluctuations and perspiration respectively).
STRESS SENSOR
Selecting the Full Auto Course and inputting
your age will measure your pulse fluctuations
(R-R intervals as seen in an electrocardiogram)
and determine the degree of stress.
Grip the sensor controller with the fingers of
both hands.
When stress measurement is completed, the
measured degree of stress is displayed.
STIFFNESS SENSOR
This sensor detects the amount of stiffness you're feeling in your
body by sensing amount of perspiration (electrical skin resistance).
It then automatically adjusts to provide the best massage for your
body in the same way a professional sensors your stiffness with the
fingertips.
Grip the sensor controller with the fingers of one hands.
When stiffness measurement is completed, the measured degree
of stiffness is displayed.
The stiffness determined by a change in perspiration monitored will be indicated in real time
on a level meter of a remote control.
1;When relaxed, the perspiration tends to decrease.
2;When in normal condition, the perspiration shows less change.
3;When felt stiffened, the perspiration tends to increase.
4;When feeling a pain, the perspiration tends to significantly increase.
In the massage position display, the position where stiffness is detected (=the point needs
to be massaged) will be displayed.
How to measure stress
Grip the stress sensor with both hands to measure your
pulse fluctuations of R-R intervals as seen in an
electrocardiogram and determine the degree of stress.
The fluctuations of R-R intervals are called CVRR
(Coefficient of Variation of R-R Intervals).
The higher this value is, the more relaxed you are.
The lower it is, the more stress you are experiencing.
The CVRR index differs according to age, so input your
age for greater accuracy.
If your skin is dry, the degree of stress/stiffness may not be measured correctly.
In such a case, press the SENSOR ADJUST button (the SENSOR ADJUST lamp
is lit when the sensor adjustment mode is ON)
Areas where a high degree of stiffness has been detected.
Areas where a low degree of stiffness has been detected.
Body areas that can be massaged.
The sensor will display the positions of stiffness (those
where stiffness has been detected) by measuring the
amount of perspiration from your hand in reaction to
sensor massage.
Stiffness display
Indicates stiffness in real time by
monitoring fingers for any change
in perspiration during acupressure
massage.
Massage position display
Rear of sensor controller
Detection
Rear of sensor controller
Detection
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HEC-DR8700
Massaging (WHOLE BODY SENSOR AUTOMATIC COURSES)
Rear of sensor controller
Detection
Rear of sensor controller
Detection
Rear of sensor controller
Detection
When stress measurement is completed
The measured degree
of stress is displayed
on the remote control
display.
and icons flash (a beep sounds)
in turn. And stiffness measurement will start.
Course selection of FULL AUTO
Automatic massages based on the degrees of stress and stiffness measured by whole body
sensors prior to massaging.
Press the FULL AUTO button.
Stress is measured. *Keep calm during stress measurement.
Press the AGE button corresponding to your age.
Grip the sensor controller with your fingers (with both hands) so that four sensors are
touched.
Stiffness is measured.
Grip the sensor controller with
your fingers (with one hand) so
that three sensors are touched.
Measure the position of shoulder.
Sensor massaging will start.
Massage according to detected stress and stiffness.
The STRESS indicator disappears.
Course selection of STIFFNESS/RECOVERY/RELAX/QUICK
Massaging using a whole body Sensor automatic course program based on the degree of
stiffness detected by sensors.
Press the STIFFNESS,RECOVERY,RELAX or QUICK buttons.
Stiffness is measured.
Grip the sensor controller with
your fingers (with one hand) so
that three sensors are touched.
Measure the position of shoulder.
Sensor massaging will start.
Massage according to detected stiffness.
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12
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HEC-DR8700
Operation of Body Pressure Sensor
Detects a pressure applied to the massaging rollers for automatic adjustment to their best position.
Detects a pressure applied to the massaging rollers for measuring spine curving to find out body
contour and shoulder position.
*
Unless the massaging rollers receive a body weight pressure from user for a certain time
during whole body sensor automatic courses or automatic courses, the operation will
discontinue with the massaging rollers retracted.
Normal
When the massaging rollers detach from the body during the Whole Body Sensor
Automatic Course or the Automatic Course, the body pressure sensor will work to
stop the operation by pulling back the massaging rollers for safety.
In such a case, begin the operation again from the start.
10 buttons flash on and off, and the m
assage
stops
Corrects the positions automatically if the posture varies
when reclining a seat.
(The "ADJUST" lamp of the remote control is flickering while measuring the
shoulder position. Afterward, when the "UP( )/DOWN ( )" lamp is flickering,
the position can be adjusted by pressing the ROLLER POSITION buttons.
The massaging rollers are moved up or down by approx. 1 cm each time the
ROLLER POSITION button is pressed.)
Detects pressure applied to the massaging rollers that depends on spine
curving, and determined its body contour and shoulder positio
n.
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13
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HEC-DR8700
Error message indication (in Service Mode)
*Abnormal indications detected during operation are stored in a memory up to
seven. Seven abnormal indications stored can be confirmed in the service mode
(Older indications than the seven abnormal indications will be deleted sequentially).
To change over to the service mode, turn ON the POWER switch at the rear of the massager
while simultaneously pressing the OPERATION ON/OFF on a remote control.
(This operation should be started with the POWER switch turned OFF).
When the "QUICK" button is pressed three times with the OPERATION ON/OFF kept pressed,
the massager is placed in the service mode.
(When the massager is placed in the service mode, four lamps at the WHOLE BODY SENSOR
AUTOMATIC COURSES come on).
To reset the service mode, turn OFF the POWER switch.
<Resetting Procedure of Abnormal Indication Memory>
Press "REPEAT" button on the sensor controller to delete all
abnormal indication memory (When the STIFFNESS and TIMER
indicators are disappeared, all abnormal indication memory
have been deleted).
When the massager is placed in the service mode, the latest abnormal indication is displayed.
The ROLLER POSITION " (DOWN)" button of the remote control is used to display older
abnormal indications one by one, and " (UP)" to display newer abnormal indication one
by one (Following the sixth older (the oldest) indication, the latest indication is displayed again).
Up to seven abnormal indications are stored in a memory. In case of less than seven, since
there are not any abnormal indications, the STIFFNESS and TIMER indicators are disappeared
alternatively to indicate the state that abnormalities are not stored.
ROLLER POSITION "UP" "DOWN" button
OPERATION "ON/OFF" button
"QUICK" button (three times)
All abnormal indication
memory have been deleted
Latest
abnormality
"UP"
"DOWN"
Next older
abnormality
"UP"
"DOWN"
Second older
abnormality
"UP"
"DOWN"
Third older
abnormality
The oldest
abnormality
"UP"
"UP"
"DOWN"
"UP"
"DOWN"
"DOWN"
Fifth older
abnormality
"UP"
"DOWN"
Fourth older
abnormality
POWER switch "ON"
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HEC-DR8700
Problem Diagnosis Chart
Error message
Troubled portion
Troubled phenomenon Check item Counteraction method
POWER
REMOTE
CONTROL
SENSOR
Nothing is displayed after the
power ON.
It displays after [ remote control
communication impossible ]
3 seconds.
(When Printed board (Main)
detects)
It displays after [ remote control
communication impossible ]
3 seconds.
(When Printed board (Remote
control) detects)
It displays after [ sensor
communication impossible ]
3 seconds.
(When Printed board (Main)
detects)
It displays after [ sensor
communication impossible ]
3 seconds.
(When Printed board (Sensor
controller) detects)
Indication does not disappear.
"Grip the Sensor"
1. Check the current fuse for fusion.
2. Check the Printed board (Power) CN201 output (Local voltage).
3. Check the Printed board (Power) CN203 output (AC 100V).
4. Check the Printed board (Main) CN1 output (AC100V).
5. Check the Printed board (Main) CN12 output (approx. AC15-20V).
6. Check the Printed board (Main) CN14 for connector come-off.
7. Check the Printed board (Remote control) CN301 for connector
come-off.
8. Check the Remote control cord and Connector (Remote control B)
for disconnection or shorting.
9. Others.
1. The connection confirmation of Printed board (Main) CN14.
2. The connection confirmation of Printed board (Remote control)
CN301.
3. Check the Remote control cord and Connector (Remote control B)
for disconnection or shorting.
4. Others.
1. The connection confirmation of Printed board (Main) CN14.
2. The connection confirmation of Printed board (Remote control)
CN301.
3. Check the Remote control cord and Connector (Remote control B)
for disconnection or shorting.
4. Others.
1. The connection confirmation of Printed board (Main) CN15.
2. The connection confirmation of Printed board (Sensor controller)
CN701.
3. Check the Connector A,B (Sensor controller) for disconnection
or shorting.
4. Others.
1. The connection confirmation of Printed board (Main) CN15.
2. The connection confirmation of Printed board (Sensor controller)
CN701.
3. Check the Connector A,B (Sensor controller) for disconnection
or shorting.
4. Others.
1. The connection confirmation of Printed board (Sensor controller)
CN702, CN703.
Replace the current fuse.
Check the Power switch and Power cord for
normal conductivity and replace them if
necessary upon check.
Check the Transformer and the Connectors
(Transformer/ Change) for normal conductivity
and replace them if necessary upon check.
Check the Connector (Printed board B) for
normal conductivity.
Replace the transformer.
Insert the connector.
Insert the connector.
Replace the Remote control cord and Connector
(Remote control B).
Replace the Printed board (Remote control).
or Printed board (Main).
Insert the connector.
Insert the connector.
Replace the Remote control cord and Connector
(Remote control B).
Replace the Printed board (Remote control).
or Printed board (Main).
Insert the connector.
Insert the connector.
Replace the Remote control cord and Connector
(Remote control B).
Replace the Printed board (Remote control)
or Printed board (Main).
Insert the connector.
Insert the connector.
Replace the Connector A,B (Sensor controller).
Replace the Printed board (Sensor controller)
or Printed board (Main).
Insert the connector.
Insert the connector.
Replace the Connector A,B (Sensor controller).
Replace the Printed board (Sensor controller)
or Printed board (Main).
Insert the connectors.
*Be sure to grip the sensor.
*When the user's skin is dry (especially a person with dry skin), the degree of stress or
stiffness may not be measured correctly.
In such a case, slightly moisten with the fingers using hand cream.
-
15
-
HEC-DR8700
Problem Diagnosis Chart
MASSAGE
TAPPING
Error message
Troubled portion
Troubled phenomenon Check item Counteraction method
*When there is no output at sensor
(IC901) for continuation 5 seconds
while Massage motor are getting
electricity.
*When there is not output level
at sensor (IC902) for continuation
30 seconds while Massage motor
are getting electricity.
*When there is no output at sensor
(IC921) for continuation 5 seconds
while tapping motor are getting
electricity.
1. The connection confirmation of Printed board (Main) CN3
and the junction connector.
2. The connection confirmation of Printed board (Main) CN9
and Printed board (Massage pulse) CN901.
3. Check the Printed board (Main) CN3 output
(approx. DC60 - 100V).
1. The connection confirmation of Printed board (Main) CN9
and Printed board (Massage pulse) CN901.
2. Check turning on confirmation main harness.
3. Check the magnet in a Holder (magnet width) .
4. Check the Printed board (Massage pulse) IC902 for
inclination.
1. Check the massage motor belt for dislocation and cut-off.
1. The connection confirmation of Printed board (Main) CN3
and the junction connector.
2. The connection confirmation of Printed board (Main) CN9
and Printed board (Massage pulse) CN901.
3. Check the Printed board (Main) CN3 output
(approx. DC60 - 100V).
1. The connection confirmation of Printed board (Main) CN9
and Printed board (Massage pulse) CN901.
2. Check turning on confirmation main harness.
3. Check the magnet in a pulley (massage) .
4. Check the Printed board (Massage pulse) IC901 for
inclination.
1. Check the massage motor belt for dislocation and cut-off.
1. The connection confirmation of Printed board (Main) CN2
and the junction connector.
2. Check the Printed board (Main) CN2 output
(approx. DC60 - 100V).
1. The connection confirmation of Printed board (Main) CN9,
Printed board (Massage pulse) CN901/CN906, Printed board
(Taping pulse) CN921.
2. Check turning on confirmation main harness.
3. Check the magnet for the tapping detection.
4. Check the Printed board (Tapping pulse) IC921 for inclination.
1. Check the tapping motor belt for dislocation and cut-off.
Insert the connectors.
Insert the connectors.
If output Replace the massage motor.
If no output Replace the Printed board
(Main).
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Massage pulse).
The massage motor belt correction, the
exchange.
Insert the connectors.
Insert the connectors.
If output Replace the massage motor.
If no output Replace the Printed board
(Main).
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Massage pulse).
The massage motor belt correction, the
exchange.
Insert the connectors.
If output Replace the tapping motor.
If no output Replace the Printed board
(Main).
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Tapping pulse).
The tapping motor belt correction, the
exchange.
Massage mode doesn't move.
A stop of massaging motion
can not be carried out.
Massage motor rotation.
(Other abnormality except massage motor)
Massage mode doesn't move.
A stop of massaging motion
can not be carried out.
Massage motor rotation.
(Other abnormality except massage motor)
Tapping mode doesn't move.
A stop of tapping motion
can not be carried out.
Tapping motor rotation.
(Other abnormality except tapping motor)
Display
Lamp (under the cover)
Lamp (under the cover)
Lamp (under the cover)
Display
Display
-
16
-
HEC-DR8700
Problem Diagnosis Chart
STRENGTH
Error message
Troubled portion
Troubled phenomenon Check item Counteraction method
When there is not output level at
sensor for continuation 15 seconds
while strength motor are moving
upward way.
When there is no detection of lower
limit position for continuation 15
seconds while strength motor are
moving downward way.
When there is no detection of upper limit
position for continuation 15 seconds while
strength motor are moving upward way.
When there is not output level at
sensor for continuation 15 seconds
while strength motor are moving
downward way.
A stop of strength motion
can not be carried out.
A stop of strength motion
can not be carried out.
A stop of strength motion
can not be carried out.
A stop of strength motion
can not be carried out.
A stop of strength motion
can not be carried out.
Strength motor rotation.
(Other abnormality except strength motor)
Strength mode doesn't move.
Strength motor rotation.
(Other abnormality except strength motor)
1. The connection confirmation of Printed board (Main) CN9
and Printed board (Massage pulse) CN901/CN902 and
Printed board (Strength pulse) CN931.
2. Check turning on confirmation main harness.
3. Check the magnet for the strength detection.
4. Check the Printed board (Strength pulse) IC931/IC932 for
inclination.
1. The connection confirmation of Printed board (Main) CN9
and Printed board (Massage pulse) CN901/ CN902 and
Printed board (Strength pulse) CN931.
2. The connection confirmation of Printed board (Massage
pulse) CN904.
3. Check the limit switch (strength).
4 Others.
1. The connection confirmation of Printed board (Main) CN5
and the junction connector.
2. Check the Printed board (Main) CN5 output (approx.
DC60 - 100V).
1. The connection confirmation of Printed board (Main) CN9
and Printed board (Massage pulse) CN901/CN902 and
Printed board (Strength pulse) CN931.
2. Check turning on confirmation main harness.
3. Check the magnet for the strength detection.
4. Check the Printed board (Strength pulse) IC931/C932 for
inclination.
1. Check the strength motor belt for dislocation and cut-off.
1. The connection confirmation of Printed board (Main) CN5
and the junction connector.
2. Check the Printed board (Main) CN5 output (approx.
DC60 - 100V).
1. The connection confirmation of Printed board (Main) CN9
and Printed board (Massage pulse) CN901/CN902 and
Printed board (Strength pulse) CN931.
2. Check turning on confirmation main harness.
3. Check the magnet for the strength detection.
4. Check the Printed board (Strength pulse) IC931/IC932 for
inclination.
1. Check the strength motor belt for dislocation and cut-off.
1. Check the Printed board (Main) FET2.
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Strength pulse).
Insert the connectors.
Insert the connector.
Replace the limit switch (strength).
Replace the Printed board (Main).
Insert the connectors.
If output Replace the strength motor.
If no output Replace the Printed board (Main).
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Strength pulse).
The strength motor belt correction, the
exchange.
Insert the connectors.
If output Replace the strength motor.
If no output Replace the Printed board (Main).
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Strength pulse).
The strength motor belt correction, the
exchange.
Replace the Printed board (Main).
Strength mode doesn't move.
Display
Lamp (under the cover)
Lamp (under the cover)
Lamp (under the cover)
Lamp (under the cover)
Lamp (under the cover)
Display
Display
Display
Display
-
17
-
HEC-DR8700
Problem Diagnosis Chart
ELEVATION
Error message
Troubled portion
Troubled phenomenon Check item Counteraction method
When there is not output level at
sensor(IC911) for continuation 5
seconds while elevation motor are
getting electricity.
When there is no detection of lower
limit position for continuation 30
seconds while elevation motor are
moving downward way.
When there is no detection of upper limit
position for continuation 30 seconds while
elevation motor are moving upward way.
When there is not output level at
sensor(IC912) for continuation 5
seconds while elevation motor are
getting electricity.
A stop of elevation motion
can not be carried out.
A stop of elevation motion
can not be carried out.
Elevation motor rotation.
(Intermitted elevation motion)
Elevation motor rotation.
(Intermitted elevation motion)
A stop of elevation motion
can not be carried out.
A stop of elevation motion
can not be carried out.
A stop of elevation motion
can not be carried out.
Elevation mode doesn't move.
Elevation mode doesn't move.
1. The connection confirmation of Printed board (Main) CN9,
Printed board (Massage pulse) CN901/CN905 and Printed board
(Elevation pulse) CN911.
2. Check turning on confirmation main harness.
3. Check the magnet for the elevation detection.
4. Check the Printed board (Elevation pulse) IC912 for inclination.
5. Check the limit switch (elevation).
6. The connection confirmation of Printed board (Main) CN11
1. Check the elevation motor belt for dislocation and cut-off.
2. The connection confirmation of Printed board (Main) CN4
and the junction connector.
1. The connection confirmation of Printed board (Main) CN11.
2. Installation confirmation of a limit switch (elevation).
3. Check the limit switch (elevation).
4. Others.
1. Check the elevation motor belt for dislocation and cut-off.
2. The connection confirmation of Printed board (Main) CN4
and the junction connector.
1. The connection confirmation of Printed board (Main) CN4
and the junction connector.
2. Check the Printed board (Main) CN4 output (approx.DC60 - 100V).
3. Check the elevation motor belt for dislocation and cut-off.
1. The connection confirmation of Printed board (Main) CN9,
Printed board (Massage pulse) CN901/CN905 and Printed board
(Elevation pulse) CN911.
2. Check turning on confirmation main harness.
3. Check the magnet for the elevation detection.
4. Check the Printed board (Elevation pulse) IC912 for inclination.
5. Check the limit switch(elevation).
6. The connection confirmation of Printed board (Main) CN11.
1. The connection confirmation of Printed board (Main) CN4
and the junction connector.
2. Check the Printed board (Main) CN4 output (approx.DC60 - 100V).
3. Check the elevation motor belt for dislocation and cut-off.
1. The connection confirmation of Printed board (Main) CN9,
Printed board (Massage pulse) CN901/CN905 and Printed board
(Elevation pulse) CN911.
2. Check turning on confirmation main harness.
3. Check the magnet for the elevation detection.
4. Check the Printed board (Elevation pulse) IC911 for inclination.
1. Check the Printed board (Main) FET4.
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Elevation pulse).
Replace the limit switch (elevation).
Insert the connector.
The elevation motor belt correction, the
exchange.
Insert the connectors.
Insert the connector.
Repair limit switch (elevation) installation.
Replace the limit switch (elevation).
Replace the Printed board (Main).
The elevation motor belt correction, the
exchange.
Insert the connectors.
Insert the connectors.
If output Replace the elevation motor.
If no output Replace the Printed board (Main).
The elevation motor belt correction, the
exchange.
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Elevation pulse).
Replace the limit switch (elevation).
Insert the connector.
Insert the connector.
If output Replace the elevation motor.
If no output Replace the Printed board (Main).
The elevation motor belt correction, the
exchange.
Insert the connectors.
Replace the main harness.
The magnet position correction for the
detection.
Correct the tilted condition or replace the
Printed board (Elevation pulse).
Replace the Printed board (Main).
Display
Lamp (under the cover)
Lamp (under the cover)
Lamp (under the cover)
Lamp (under the cover)
Lamp (under the cover)
Display
Display
Display
Display
-
18
-
HEC-DR8700
Problem Diagnosis Chart
Error message
Troubled portion
Troubled phenomenon Check item Counteraction method
RECLINING
FOOT REST
1. The connection confirmation of Printed board (Power) CN209.
2. Check the Printed board (Power) CN209 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN214.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the foot rest reclining upper limit switch.
4. Others.
1. The connection confirmation of Printed board (Power) CN209.
2. Check the Printed board (Power) CN209 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN214.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the foot rest reclining lower limit switch.
4. Others.
1. The connection confirmation of Printed board (Power) CN209.
2. Check the Printed board (Power) CN209 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN214.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the foot rest reclining upper limit switch.
4. Others.
1. The connection confirmation of Printed board (Power) CN209.
2. Check the Printed board (Power) CN209 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN214.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the foot rest reclining lower limit switch.
4. Others.
Insert the connector.
If output Replace the reclining motor
(foot rest).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (foot rest).
Replace the Printed board (Main).
Insert the connector.
If output Replace the reclining motor
(foot rest).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (foot rest).
Replace the Printed board (Main).
Insert the connector.
If output Replace the reclining motor
(foot rest).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (foot rest).
Replace the Printed board (Main).
Insert the connector.
If output Replace the reclining motor
(foot rest).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (foot rest).
Replace the Printed board (Main).
The foot rest reclining motion
doesn't move. (Don't up)
The foot rest reclining motion
doesn't move. (Don't down)
The foot rest reclining motion
doesn't move. (Don't down)
The foot rest reclining motion
doesn't move. (Don't up)
A foot rest reclining operation
stop is not carried out.
A foot rest reclining operation
stop is not carried out.
A foot rest reclining operation
stop is not carried out.
A foot rest reclining operation
stop is not carried out.
When there is no detection of reclining
switch (upper limit) at the foot part for
continuation 1 minutes while reclining
motor are moving for raising foot rest.
When there is no detection of reclining
switch (lower limit) at the foot part for
continuation 1 minutes while reclining
motor are moving for lower foot rest.
When there is detection of reclining
switch (upper limit) at the foot part for
continuation 5 seconds while reclining
motor are moving for lower foot rest.
When there is detection of reclining
switch (lower limit) at the foot part for
continuation 5 seconds while reclining
motor are moving for raising foot rest.
-
19
-
HEC-DR8700
Problem Diagnosis Chart
Error message
Troubled portion
Troubled phenomenon Check item Counteraction method
RECLINING
BACK REST
1. The connection confirmation of Printed board (Power) CN208.
2. Check the Printed board (Power) CN208 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN215.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the back rest reclining upper limit switch.
4. Others.
1. The connection confirmation of Printed board (Power) CN208.
2. Check the Printed board (Power) CN208 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN215.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the back rest reclining lower limit switch.
4. Others.
1. The connection confirmation of Printed board (Power) CN208.
2. Check the Printed board (Power) CN208 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN215.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the back rest reclining upper limit switch.
4. Others.
1. The connection confirmation of Printed board (Power) CN208.
2. Check the Printed board (Power) CN208 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN215.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the back rest reclining lower limit switch.
4. Others.
Insert the connector.
If output Replace the reclining motor
(back rest).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (back rest).
Replace the Printed board (Main).
Insert the connector.
If output Replace the reclining motor
(back rest).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (back rest).
Replace the Printed board (Main).
Insert the connector.
If output Replace the reclining motor
(back rest).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (back rest).
Replace the Printed board (Main).
Insert the connector.
If output Replace the reclining motor
(back rest).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (back rest).
Replace the Printed board (Main).
The back rest reclining motion
doesn't move. (Don't up)
The back rest reclining motion
doesn't move. (Don't down)
The back rest reclining motion
doesn't move. (Don't down)
The back rest reclining motion
doesn't move. (Don't up)
A back rest reclining operation
stop is not carried out.
A back rest reclining operation
stop is not carried out.
A back rest reclining operation
stop is not carried out.
A back rest reclining operation
stop is not carried out.
When there is no detection of reclining
switch (upper limit) at the back part for
continuation 1 minutes while reclining
motor are moving for raising back rest.
When there is no detection of reclining
switch (lower limit) at the back part for
continuation 1 minutes while reclining
motor are moving for lower back rest.
When there is detection of reclining
switch (upper limit) at the back part for
continuation 5 seconds while reclining
motor are moving for lower back rest.
When there is detection of reclining
switch (lower limit) at the back part for
continuation 5 seconds while reclining
motor are moving for raising back rest.
-
20
-
HEC-DR8700
Problem Diagnosis Chart
HEATER
Error message
Troubled portion
Troubled phenomenon Check item Counteraction method
1. The connection confirmation of Printed board (Power) CN210.
2. Check the Printed board (Power) CN210 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN216.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the seat reclining upper limit switch.
4. Others.
1. The connection confirmation of Printed board (Power) CN210.
2. Check the Printed board (Power) CN210 output
(approx. DC100V).
1. The connection confirmation of Printed board (Power) CN216.
2.
The connection confirmation of Printed board (Power) CN212,
Printed board (Main) CN8 and the junction connector.
3. Check the seat reclining lower limit switch.
4. Other
1. The connection confirmation of Printed board (Main) CN10.
2. Check the Connector A,B (heater) for disconnection.
3. Check the Thermistor (heater sole) for disconnection.
4. Others.
1. The connection confirmation of Printed board (Main) CN10.
2. Check the Connector A,B( heater) for shorting.
3. Check the Thermistor (heater sole) for shorting.
4. Others.
1. Check the Printed board (Main) TH1 for disconnection.
1. Check the Printed board (Main) TH1 for shorting.
Insert the connector.
If output Replace the reclining motor (seat).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (seat).
Replace the Printed board (Main).
Insert the connector.
If output Replace the reclining motor (seat).
If no output Replace the Printed board
(Power).
Insert the connector.
Insert the connectors.
Replace the reclining motor (seat).
Replace the Printed board (Main).
Insert the connector.
Replace the Connector A,B (heater).
Replace the heater (sole).
Replace the Printed board (Main).
Insert the connector.
Replace the Connector A,B (heater).
Replace the heater (sole).
Replace the Printed board (Main).
Replace the Printed board (Main).
Replace the Printed board (Main).
RECLINING
SEAT
The seat reclining motion
doesn't move. (Don't up)
A foot rest reclining operation
stop is not carried out.
The foot rest reclining motion
doesn't move. (Don't down)
A foot rest reclining operation
stop is not carried out.
When there is thermistor (heater
sole) output
of continuation 3
seconds and more than 4.9V.
When there is thermistor (heater
sole) output
of continuation 3
seconds and less than 0.1V.
When there is thermistor (room
temperature) output
of
continuation 3 seconds and
more than 4.9V.
When there is thermistor (room
temperature) output
of
continuation 3 seconds and
less than 0.1V.
When there is no detection of reclining
switch (lower limit) at the seat part for
continuation 1 minutes while reclining
motor are moving for lower seat.
When there is no detection of reclining
switch (upper limit) at the seat part for
continuation 1 minutes while reclining
motor are moving for raising seat.
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