Sanyo HEC-DR7750 User manual

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FILE No.

SERVICE MANUAL

REFERENCE NO. SM6510550-00

Chair Type Massager

(Massage Lounger)

HEC-DR7700

HEC-DR7700K

(U.S.A.)

HEC-DR7750

(CANADA)

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Specifications

HEC-DR7700

290 W

33 W

AC Local voltage 50/60 Hz

30 minutes

730 mm[width] x 1,350 mm[depth] x 1,220 mm[height]

* When not reclined (with foot rest retracted)

730 mm[width] x 1,840 mm[depth] x 760 mm[height]

* When reclined (with foot rest set horizontally)

(5 stages) Approx. 300 - 600 times/min.

One up/down pass in approx. 35 sec.

Approx. 83kg

No gradation or 1cm/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. 23 - 32 kPa

Approx. 790 mm

(Massaging rollers movement range : Approx. 660 mm)

Stand, Installation screws(Three)

Artificial leather

(5 stages) Approx. 10 - 30 times/min.

Power consumption

Power dissipation of electric heating equipment

Power source

Rating time

Dimensions

Weight

Medical treatment range

(UP DOWN direction)

Height adjustment of

massaging rollers

Reclining angle

Reclining method

Lower body massaging

(Air pressure)

* There is a slight difference according to the part.

Accessories

Exterior cloth

Vertical movement speed

Partial stretching(Long) :Repetition within Approx.200mm

Partial stretching(Short) :Repetition within Approx.100mm

Spine stretching width

Massaging frequency

Tapping width (Upper body)

Tapping frequency (Upper body)

Range of partial stretching

(MANUAL COURSE) Approx. 15 minutes

Timer

(5 stages) Approx. 70-130mm

(WHOLE BODY SENSOR AUTOMATIC COURSE)

Approx. 15 minutes (maximum Approx. 20 minutes)

(AUTOMATIC COURSE) Approx. 15 minutes

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Name/Function of Each Part

HEC-DR7700

Tapping motor

Massage motor

Strength motor

Elevation motor

Caster

Back rest

Back pad

Arm rest

Head cover

Seat

Remote control

Sensor controller

Massaging rollers

Power plug

Cover A

Foot rest slide lever

Foot rest

Cover B

Stand

POWER switch

LOCK switch

Massage unit

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Wiring Diagram (for LOW voltage)

HEC-DR7700

CN201

CN202

CN206CN204 CN207CN208

CN8 CN7 CN12

CN17CN18

CN205

CN203

CN210

CN16

CN19CN15

CN906

CN921

CN905

CN902

CN904

CN903

CN911

CN9 CN10

CN703

CN1

CN11

CN1 CN2 CN3 CN4

CN14

CN791

CN702

CN701

CN13

CN901

CN931

CN209

CN6CN5

Power Switch

AC

Fuse

(250V 4A)

Transformer

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)

Main Harness

Volume Rotary

(Pressure)

Limit Switch(UPPER)

(Strength)

Motor(Elevation)

Perspiration Sensor

Printed board

(Pulse Sensor)

(Sensor)

(Remote Control)

Printed board

(Sensor Control)

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)

Valve (No.4)

Valve (No.10)

Valve (No.3)

Valve (No.2)

Valve (No.1)

Switch

Reclining Motor(Seat)

Motor

Switch

Motor

Switch

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Wiring Diagram (for HIGH voltage)

HEC-DR7700

CN201

CN202

CN206CN204 CN207CN208

CN8 CN7 CN12

CN17CN18

CN205

CN203

CN210

CN16

CN19CN15

CN906

CN921

CN905

CN902

CN904

CN903

CN911

CN9 CN10

CN703

CN1

CN11

CN1 CN2 CN3 CN4

CN14

CN791

CN702

CN701

CN13

CN901

CN931

CN209

CN6CN5

Air Pump

Power Switch

AC

Fuse

(250V 4A)

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)

Main Harness

Volume Rotary

(Pressure)

Limit Switch(UPPER)

(Strength)

Motor(Elevation)

Perspiration Sensor

Printed board

(Pulse Sensor)

(Sensor)

(Remote Control)

Printed board

(Sensor Control)

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)

Valve (No.4)

Valve (No.10)

Valve (No.3)

Valve (No.2)

Valve (No.1)

Switch

Reclining Motor(Seat)

Motor

Switch

Motor

Switch

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HEC-DR7700

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 controller.

When the "FINE" 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 blue lamps at the WHOLE BODY

SENSOR AUTOMATIC COURSE come on).

To reset the service mode, turn OFF the POWER switch.

Simultaneously press "REPATE" button on the sensor controller

to delete all abnormal indication memory (When the seven

STIFFNES indicators are all lit up, all abnormal indication memory

have been deleted).

When the massager is placed in the service mode, the latest abnormal indication is displayed.

The POSITION ADJUST " (DOWN)" button of the remote controller 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, some of the seven STIFFNESS indicators are lit

alternatively to indicate the state that abnormalities are not stored.

POSITION ADJUST "UP" "DOWN" button

"OPERATION ON/OFF" button

"FINE" 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"

"DOWN"

"UP"

"DOWN"

Fifth older

abnormality

"UP"

"DOWN"

Fourth older

abnormality

STIFFNESS

RELAX HIGHT

POWER switch "ON"

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HEC-DR7700

Problem Diagnosis Chart

Error message

Troubled portion

Troubled phenomenon Check item Counteraction method

POWER

REMOTE

CONTROL

SENSER

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 (Senser)

detects)

Indication does not disappear.

"Grip the Sensor"

1. Check the current fuse for fusion.

2. Check the Printed board (Power) CN201output (AC100V).

3. Check the Printed board (Power) CN207 output (AC100V).

4. Check the Printed board (Main) CN8output (AC100V).

5. Check the Printed board (Main) CN10 output (approx. AC24V).

6. Check the Printed board (Main) CN13for connector come-off.

7. Check the Printed board (Remote control) CN1 for connector

come-off.

8. Check the Connector A,B (remote control) for disconnection

or shorting.

9. Others.

1. The connection confirmation of Printed board (Main) CN13.

2. The connection confirmation of Printed board (Remote control)

CN1.

3. Check the Connector A,B (remote control) for disconnection

or shorting.

4. Others.

1. The connection confirmation of Printed board (Main) CN13.

2. The connection confirmation of Printed board (Remote control)

CN1.

3. Check the Connector A,B (remote control) for disconnection

or shorting.

4. Others.

1. The connection confirmation of Printed board (Main) CN14.

2. The connection confirmation of Printed board (Sensor ) CN703.

3. Check the Connector A,B (Sensor) cable for disconnection or

shorting.

4. Others.

1. The connection confirmation of Printed board (Main) CN14.

2. The connection confirmation of Printed board (Sensor control)

CN703.

3. Check the Connector A,B (Sensor) cable for disconnection or

shorting.

4. Others.

1. The connection confirmation of Printed board (Sensor )CN701,

CN702.

Replace the current fuse.

Check the power switch, power cord and

transformer for normal conductivity and

replace them if necessary upon check.

Check the Printed board (Power).

Check the Connector (Printed board) .

Replace the transfomer.

Insert the connector.

Replace the Connector A,B (Remote control) .

Replace the Printed board (Remote control)

or Printed board (Main).

Insert the connector.

Replace the Connector A,B (Remote control) .

Replace the Printed board (Remote control)

or Printed board (Main).

Insert the connector.

Replace the Connector A,B (Remote control) .

Replace the Printed board (Remote control)

or Printed board (Main).

Insert the connector.

Replace the Connector A,B (Sensor) .

Replace the Printed board (Sennsor ) or

Printed board (Main).

Insert the connector.

Replace the Connector A,B (Sensor) .

Replace the Printed board (Sennsor ) or

Printed board (Main).

Insert the connector.

*Be sure to grip the sensor.

*When the user's skin is dry (especially a person with dry skin), the degree of stiffness may

not be measured correctly.

In such a case, slightly moisten with the fingers using hand cream.

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HEC-DR7700

Problem Diagnosis Chart

MASSAGE

TAPPING

Error message

Troubled portion

Troubled phenomenon Check item Counteraction method

*When there is no output at sensor

(IC902) for continuation 15 seconds

while Massage motor are getting

erectricity.

*When there is not output level

at sensor(IC902) for continuation

30 seconds while Massage motor

are getting erectricity.

*When there is no output at sensor

(IC921) for continuation 15 seconds

while tapping motor are getting

erectricity.

1. The connection confirmation of Printed board (Main) CN2

and the junction connector.

2. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901.

3. Check the Printed board (Main) CN2 output

(approx. DC60 - 100V).

1. The connection confirmation of Printed board (Main) CN11

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) CN2

and the junction connector.

2. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901.

3. Check the Printed board (Main) CN2 output

(approx. DC60 - 100V).

1. The connection confirmation of Printed board (Main) CN11

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) CN1

and the junction connector.

2. Check the Printed board (Main) CN1 output

(approx. DC60 - 100V).

1. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901 and CN906.

2. Check turning on confirmation main harness.

3. The magnet check 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 connector.

If output Replace the massage motor.

If no output Replace the Printed board

(Main).

Insert the connector.

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 connector.

If output Replace the massage motor.

If no output Replace the Printed board

(Main).

Insert the connector.

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 connector.

If output Replace the tapping motor.

If no output Replace the Printed board

(Main).

Insert the connector.

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.

Massage mode doesn't move.

A stop of massaging motion

can not be carried out.

Massage motor rotation.

Tapping mode doesn't move.

A stop of tapping motion

can not be carried out.

Tapping motor rotation.

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HEC-DR7700

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 getting

erectricity.

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 upper ward way.

When there is not output level at

sensor for continuation 15 seconds

while strength motor are getting

erectricity.

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.

Strength mode doesn't move.

Strength motor rotation.

1. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901 and CN902.

The connection confirmation of Printed board (Strength

pulse) CN931.

2. Check turning on confirmation main harness.

3. The magnet check for the strength detection.

4. Check the Printed board (Strength pulse) IC931, IC932 for

inclination.

1. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901 and CN902.

The connection confirmation of 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) CN3

and the junction connector.

2. Check the Printed board (Main) CN3 output (approx.

DC60 - 100V).

1. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901 and CN902.

The connection confirmation of Printed board (Strength

pulse) CN931.

2. Check turning on confirmation main harness.

3. The magnet check 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. The connection confirmation of Printed board (Main) CN3

and the junction connector.

2. Check the Printed board (Main) CN3 output (approx.

DC60 - 100V).

1. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901 and CN902.

The connection confirmation of Printed board (Strength

pulse) CN931.

2. Check turning on confirmation main harness.

3. The magnet check 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.

Insert the connector.

Replace the main harness.

The magnet position correction for the

detection.

Correct the tilted condition or replace the

Printed board (Strength pulse).

Insert the connector.

Replace the switch(strength).

Replace the Printed board (Main).

Insert the connector.

If output Replace the strength motor.

If no output Replace the Printed board (Main).

Insert the connector.

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 connector.

If output Replace the strength motor.

If no output Replace the Printed board (Main).

Insert the connector.

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.

Strength mode doesn't move.

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HEC-DR7700

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 30

seconds while elevation motor are

getting erectricity.

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 upper ward way.

When there is not output level at

sensor(IC912) for continuation 30

seconds while elevation motor are

getting erectricity.

A stop of elevation motion

can not be carried out.

A stop of elevation motion

can not be carried out.

Elevation motor rotation.

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.

1. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901 and CN905.

The connection confirmation of Printed board (Elevation pulse) CN911.

2. Check turning on confirmation main harness.

3. The magnet check 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) CN15

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. Confirm short circuit of each lead wires of PCB (Main) CN15

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) CN11

and Printed board (Massage pulse) CN901 and CN905.

The connection confirmation of Printed board (Elevation pulse) CN911.

2. Check turning on confirmation main harness.

3. The magnet check 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) CN15

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) CN11

and Printed board (Massage pulse) CN901 and CN905.

The connection confirmation of Printed board (Elevation pulse) CN911.

2. Check turning on confirmation main harness.

3. The magnet check for the elevation detection.

4. Check the Printed board (Elevation pulse) IC911 for inclination.

Insert the connector.

Replace the main harness.

The magnet position correction for the

detection.

Correct the tilted condition or replace the

Printed board (Elevation pulse).

Replace the switch(elevation).

Insert the connector.

The elevation motor belt correction, the

exchange.

Insert the connector.

Replace the switch assembly.

Repair limit switch (elevation) installation.

Replace the switch(elevation).

Replace the Printed board (Main).

The elevation motor belt correction, the

exchange.

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 connector.

Replace the main harness.

The magnet position correction for the

detection.

Correct the tilted condition or replace the

Printed board (Elevation pulse).

Replace the switch(elevation).

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 connector.

Replace the main harness.

The magnet position correction for the

detection.

Correct the tilted condition or replace the

Printed board (Elevation pulse).

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HEC-DR7700

Problem Diagnosis Chart

Error message

Troubled portion

Troubled phenomenon Check item Counteraction method

RECLINING

FOOT REST

1. The connection confirmation of Printed board (Power) CN206.

2. Check the Printed board (Power) CN206 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN17.

2. Check the foot rest reclining upper limit switch.

3. Others.

1. The connection confirmation of Printed board (Power) CN206.

2. Check the Printed board (Power) CN206 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN17.

2. Check the foot rest reclining lower limit switch.

3. Others.

1. The connection confirmation of Printed board (Power) CN206.

2. Check the Printed board (Power) CN206 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN17.

2. Check the foot rest reclining upper limit switch.

3. Others.

1. The connection confirmation of Printed board (Power) CN206.

2. Check the Printed board (Power) CN206 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN17.

2. Check the foot rest reclining lower limit switch.

3. Others.

Insert the connector.

If output Replace the reclining motor

(foot rest).

If no output Replace the Printed board

(Power).

Insert the connector.

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.

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.

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.

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 lilacinning operation

stop is not carried out.

A foot rest lilacinning operation

stop is not carried out.

A foot rest lilacinning operation

stop is not carried out.

A foot rest lilacinning 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 seat.

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 seat.

When there is detection of reclining

switch(upper limit) at the foot part for

continuation 1 minutes while reclining

motor are moving for lower seat.

When there is detection of reclining

switch(lower limit) at the foot part for

continuation 1 minutes while reclining

motor are moving for raising seat.

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HEC-DR7700

Problem Diagnosis Chart

Error message

Troubled portion

Troubled phenomenon Check item Counteraction method

RECLINING

BACK REST

1. The connection confirmation of Printed board (Power) CN205.

2. Check the Printed board (Power) CN205 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN16.

2. Check the back rest reclining upper limit switch.

3. Others.

1. The connection confirmation of Printed board (Power) CN205.

2. Check the Printed board (Power) CN205 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN16.

2. Check the back rest reclining lower limit switch.

3. Others.

1. The connection confirmation of Printed board (Power) CN205.

2. Check the Printed board (Power) CN205 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN16.

2. Check the back rest reclining upper limit switch.

3. Others.

1. The connection confirmation of Printed board (Power) CN205.

2. Check the Printed board (Power) CN205 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN16.

2. Check the back rest reclining lower limit switch.

3. Others.

Insert the connector.

If output Replace the reclining motor

(back rest).

If no output Replace the Printed board

(Power).

Insert the connector.

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.

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.

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.

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 lilacinning operation

stop is not carried out.

A back rest lilacinning operation

stop is not carried out.

A back rest lilacinning operation

stop is not carried out.

A back rest lilacinning 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 seat.

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 seat.

When there is detection of reclining

switch(upper limit) at the back part for

continuation 1 minutes while reclining

motor are moving for lower seat.

When there is detection of reclining

switch(lower limit) at the back part for

continuation 1 minutes while reclining

motor are moving for raising seat.

-

13

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HEC-DR7700

Problem Diagnosis Chart

HEATER

PRESSURE

SENSOR

Error message

Troubled portion

Troubled phenomenon Check item Counteraction method

When there is pressure sensor

output of Continuation 3 second

and less then 0.1V.

When there is thermistor output

of continuation 2 second and

less then 0.1V.

When there is thermistor output

of continuation 2 second and

more then 4.9V.

1. The connection confirmation of Printed board (Power) CN204.

2. Check the Printed board (Power) CN204 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN18.

2. Check the seat reclining lower limit switch.

3. Others.

1. The connection confirmation of Printed board (Power) CN204.

2. Check the Printed board (Power) CN204 output

(approx. DC100V).

1. The connection confirmation of Printed board (Main) CN18.

2. Check the seat reclining upper limit switch.

3. Other

1.

The connection confirmation of Printed board (Main) CN12

.

2. Check the Connector ass'y A,B(heater) for disconnection.

3. Check the Thermistor for disconnection.

4. Others.

1.

The connection confirmation of Printed board (Main) CN12

.

2. Check the Connector ass'y A,B(heater) for shorting.

3. Check the Thermistor for shorting.

4. Others.

1. Check the volume rotary (pressure) .

(CN903 red-black approx. 10k /red-white approx.

250 - 10k )

2. The connection confirmation of Printed board (Main) CN11

and Printed board (Massage pulse) CN901 and CN903.

3. Check the main harness for disconnection or shorting.

4. Others.

Insert the connector.

If output Replace the reclining motor (seat).

If no output Replace the Printed board

(Power).

Insert the connector.

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.

Replace the reclining motor (seat).

Replace the Printed board (Main).

Insert the connector.

Replace the

Connector ass'y A,B (heater)

.

Replace the

heater(sole)

.

Replace the Printed board (main).

Insert the connector.

Replace the

Connector ass'y A,B (heater)

.

Replace the

heater(sole)

.

Replace the Printed board (main).

Replace the volume rotary (pressure).

Insert the connector.

Replace the main harness.

Replace the Printed board (main).

RECLINING

SEAT

The seat reclining motion

doesn't move. (Don't down)

A foot rest lilacinning operation

stop is not carried out.

The foot rest reclining motion

doesn't move. (Don't up)

A foot rest lilacinning operation

stop is not carried out.

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.

-

14

-

HEC-DR7700

Problem Diagnosis Chart

OTHERS

NORMAL

Error message

Troubled portion

Troubled phenomenon Check item Counteraction method

An abnormal power supply.

1. Check the power supply of an power point.

2. Others.

1. Check the power supply of an power point.

2. Others.

1. Check the relay (Printed board (main) RY1).

Replace the Printed board (main).

Up to seven abnormal indications are stored in a memory. In case of less than seven, since

there are not any abnormal indications, some of the seven STIFFNESS indicators are lit

alternatively to indicate the state that abnormalities are not stored.

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.

9 buttons flash on and off, and

the m

assage

stops

-

15

-

HEC-DR7700

Air-Bag Operation Confirmation Procedure

Turn ON the POWER switch at the rear of the massager while simultaneously pressing the

POSITION ADJUST "UP" and "DOWN" buttons and "SOLE WARMER" button on the remote

controller (This operation should be started with the POWER switch turned OFF).

When the examination mode is started up, both a backrest and a foot rest move slightly and

come to a stop.

Start-up of Examination Mode

Press either " (DOWN)" or " (UP)" button of the LOWER BODY adjustment on the

remote controller.

Check if the air-bag inflates sequentially as shown below.

* If there are any problems, check air leakage, breakage of air hoses, and the air-bag.

Air-Bag Operation Confirmation

1, Foot pinching, outside

2, Foot pinching, inside

3, Foot shiatsu, middle

4, Foot shiatsu, back and forth

5, Ankle pinching

6, Leg pinching, inside, outside

7, Leg shiatsu, lower

9, Waist, right, left

8, Leg shiatsu, upper

1

2

1

2

3

4

5

6

4

6

7

8

9

7

8

OPEN

LOCK

ON

OFF

POWER

POSITION ADJUST "UP" and "DOWN" buttons and "SOLEWARMER"button

POWER switch "ON"

(Simultaneously press)

LOWER BODY adjusting button

-

16

-

HEC-DR7700

Motor Operation Confirmation Procedure

Turn ON the POWER switch at the rear of the massager while simultaneously pressing the

POSITION ADJUST "UP" and "DOWN" buttons and "SOLE WARMER" button on the remote

controller (This operation should be started with the POWER switch turned OFF).

When the examination mode is started up, both a backrest and a foot rest move slightly and

come to a stop.

Start-up of Examination Mode

Press either " (DOWN)" or " (UP)" button of the LOWER BODY adjustment on the remote

controller. (move for 3min)

Seven motors work at the same time when they push "REPEAT" button.

Massage motor and tapping motor is fastest moves.

Elevevation motor and Strength motor goes to an upper

point and lower point and return.

Reclinning motor (foot rest/back rest/seat) repeats the expansion and

contraction.

Movement / a stop is possible with a "REPEAT" button again and again.

*When I changed massage unit assembly / reclining motore /pcb, I confirm

movement by this function.

Because Istop by an error when there is abnormality, I confirm a place of pertinence.

As for this function , sole warmer / air pump / valve moves at the same time ,too.

Air-Bag Operation Confirmation

Motor Operation Confirmation

1.

Masssge motor

2.

Elevation motor

3.

Tapping motor

4. Strength motor

5. Reclining motor

(Seat)

7. Reclining motor

(Foot rest)

6. Reclining motor

(Back rest)

"REPEAT" button

1

2

4

3

1

-

17

-

HEC-DR7700

Replacement Procedure

(1) Replacement of arm rest assembly

, cover (arm rest lower)

1, Remove one cord holder set screw and unfix

two remote controller cords. Photo-1

2, Insert a minus screwdriver in a hole under a

cover and remove a this side discounted cover.

Photo-1

3,

Remove three stand assembly (remote control)

set screws and take off the stand assembly

(remote control) .

Photo-2

4, Remove two set screws on the arm rest and

lift up and take off the arm rest . Photo-2

5, Take off the other side in the same way.

6, Remove four cover (arm rest lower) set

screws and take off the cover

(arm rest lower). Photo-2

(2) Replacement of PCBs (main)

& (power)

1, Remove four cover (arm rest lower) left

set screws and take off

the

cover

(arm rest lower) left. Photo-2

2, Defeat the main body so that a leg becomes

the top with the back possible Photo-3

3, Lift up a foot rest and insert a screwdriver

and so forth into a link to fix the link.

Photo-3

4, Remove six cover (under) set screws and

take off

the

cover (under upper)right ,cover

(under upper)left, cover (under front)

Photo-3

5, Remove one cover (PCB) set screws and

take off

the

latches of ribs at the rear of

the cover (PCB). Photo-4

Cord holder

Cover

Photo-1

Cover (under fornt)

Cover (under upper,fornt) set screws

Cover (PCB)

Cover (PCB) set screw

Photo-4

Stand (remote control)

Insert minus screwdriver

Arm rest

Cover set screws

Cover (arm rest lower)

Arm rest

Photo-2

Stand (remote control)

Stand set screws

Arm rest set screws

Photo-3

Cover (under upper)right

Driver,etc

Cover (under upper)left

-

18

-

HEC-DR7700

Replacement Procedure

(4) Replacement of Air Pump,

Transformer

1, Take off the arm rest and cover(arm rest

lower). Photo-1,2

2, Take off the cover (under front ) Photo-3

3, Remove two cover(air pump) set screws and

take off the cover(air pump). Photo-7

4, Take off the cord processing of an air pump.

5, Remove four fixing rubbers of the air pump

and take off the air pump. Photo-7

6, Take off the cord processing of a transformer.

7, Remove two transformer set screws and

take off the transformer. Photo-7

*When taking off the air hoses, indicate a

mark such as number, symbol

(Exercise care so as not to make a

mistake in connecting the hoses).

6, Disconnect connectors connected to the

PCB (power). Photo-5

7, Unfix nine stoppers (PCB) and take off the

PCB (power). Photo-5

8, Remove three stay (PCB) set screws and

take off the stay (PCB). Photo-5

* There is a set screw around under a reclining

motor at the left side.

9,

Disconnect the connectors connected to the

PCB (main). Photo-5

10,

Unfix nine stoppers (PCB) from the bottom

side of the massager and take off the

PCB (main). Photo-5

(3) Replacement of Valve

1, Take off the arm rest and cover(arm rest

lower). Photo-1,2

2, Take off the cover (under front ) Photo-3

3, Disconnect each air hose. Photo-6

4, Remove the cord processing of a valve.

Photo-6

5, Remove one holder(valve) set screws and

take off the valve assembly and holder(valve).

Photo-6

6, Remove two valve set screws and take off

the valve assembly. Photo-6

Stay (PCB)

Stopper

PCB (main)

Stay(PCB) set screws

Photo-5

PCB(power)

Holder set screw

Cover (air pump)

Cover (air pump) set screws

Transformer

Set screws

Air pump

Photo-7

Photo-6

Holder (valve)

Valve

-

19

-

HEC-DR7700

Replacement Procedure

(5) Replacement of Reclining Motor

1, Take off the arm rest and cover(arm rest

lower). Photo-1,2

2, Take off the cover (under front ). Photo-3

3, Disconnect each cord processing and cords.

4, Lay down the massager with its left side

facing downward. Photo-8

5, Each reclining motor (set) is fixed at two

places on both ends. Therefore, remove

E rings on both ends and pull out fixing pins.

Photo-9

(6) Replacement of Power Switch

and Current Fuse

1, Take off the cover (arm rest lower) right.

Photo-2

2, Remove each cord processing and

disconnect the cords.

3, Remove two case (switch box) set screws

and take off the case (switch box).

Photo-10

4, Open a fuse case of current fuses and take

out a current fuse. Photo-11

5, Remove two switch holder set screws and

take off a switch holder.

Photo-11

6, Remove a switch fixing screw and take off

the POWER switch. Photo-11

Switch holder set screws

Case set screws

POWER switch

Connector (sensor A)

Connector (remote control A)

Photo-10

Photo-11

Case (switch box)

Current fuse

Power cord

Photo-8

Reclining motor

(foot rest)

Reclining motor

(back rest)

Reclining motor (seat)

E rings & fixing pins

Photo-9

Reclining motor (back rest)

Reclining motor (foot rest)

E rings & fixing pins

Reclining motor (seat)

E rings & fixing pins

-

20

-

HEC-DR7700

Replacement Procedure

(7) Replacement of Remote Control

1, Take off the cover (arm rest lower) right.

Photo-2

2, Take off the power supply box assembly.

Photo-10

3, Remove each connector processing and

disconnect the connectors. Photo-12

4, Remove nine remote control case set screws

and take off a remote control case (lower).

Photo-13

5, Remove two PCB (remote control) set screws

and take off the PCB (remote control).

Photo-14

6, Disconnect the interconnecting connector

CN1 of the connector (remote control A).

Photo-14

(8) Replacement of Sensor

1, Take off the cover (arm rest lower) right.

Photo-2

2, Take off the power supply box assembly.

Photo-10

3, Remove each cord processing and

disconnect the cords. Photo-12

4, Remove four sensor case set screws and

take off the sensor case (upper).

Photo-15

5, Take off the PCB (sensor). Photo-16

6, Disconnect the interconnecting connector

CN701 ,CN702,CN703 of the connector

(sensor A). Photo-16

PCB (remote control)

CN1

Remote control case set screws

Remote control case (lower)

Photo-13

Photo-12

PCB set screws

Connector (remote control A)

Photo-14

Sensor case set screws

Sensor case (upper)

Photo-15

Photo-16

Connector (remote control B)

Connector joint

Connector ( sensor A)

Connector ( sensor B)

Connector (sensor A)

PCB (sensor)

CN703

CN701

CN702

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