EASEPAL EC-380B Manual

1
中国·厦门蒙发利科技有限公司
Xiamen Comfort Science & Technology Co.,Ltd
EC-380B Maintenance Service Manual
MODEL：EC-380B
Voltage specification：220-240V
By Customer Service Department

2
Table of Contents
I……Specifications ……………………………………………………….3
II.…..Appearance of the chair …………………………………………….4
III…. Name and functions of components (remote controller) …………...5
IV…..Malfunction catalog………………………………………………6~8
V……Troubleshooting flow chart……………………………………..9~13
VI……Maintenance of the back rest …………………………………14~19
VII…..Maintenance of the seat part ………………………………….20~24
VIII….Maintenance of the footrest …………………………………..25~28
IX……The project of spare part shipment……………………………29
Model EC-380B

3
I. Specifications

4
II. Appearance of the chair
Backrest
Pillow
Controller
Backrest Pad
Arm massage
Hip massage
Seatpart
Shoulder massage
Wheel
Side panel Footrest

5
III.Name and functions of components (remote controller)
Main control buttons
Auto-program buttons
Angle adjustment button
Length auto adjustment
buttons for legrest
Manual back
massage programs
The adjustment button
for back body
Remote controller
LCD
Sensor receiver
Back speed/Air
intensity

6
IV. Malfunction catalog
Common Troubles and Maintenance Methods are listed as following:
Serial
NO. Phenomenon Description Maintenance Methods Refer to
01 No Function
When Starting.
The LCD isn’t illuminating:
①Fuse(s) burn out ( the one
Is in the Power Source Box and
the other one on the main PCB).
②Power supply circuit poorly
connected.
③EMC Board fails.
④main PCB fails.
①Replace Fuse(s).
②Replace the power supply
cord.
③Replace EMC Board.
④Replace main PCB.
①Page 24/20
②(Ellipsis)
③&④
Page 23/18
02 No function
when starting.
The LCD is illuminating：
①The Up or Down Stroke
Photo-electricity fails.
Main PCB fails.
②Kneading is on without
pressing any key when
starting and no response
by pressing other keys.
①Replace the Up or Down
Stroke Photo-electricity.
②Replace the main PCB.
③Width Inspection Board of
PCB fails, replace it.
①Page 19/8
②Page 23/18
③Page 18/7.1
03 No Width
switchover.
①The terminals of Width
Inspection on main PCB
and wires are poorly
connected.
②The terminals of Width
Inspection on massage
mechanical and wires are
poorly connected.
③Width Inspection fails.
④Main PCB fails.
①&②Plug the terminal
securely or replace the wires.
③Replace Width Inspection.
④Replace the main PCB.
①&②&③
Page 18/7.1
④Page 23/18

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04 No Rolling.
①Terminal or Wire Poorly
Contacts.
②Down-stroke Photo-
Electricity Subassembly Fails.
③Up-stroke Photo-electricity
Subassembly Fails.
④Rolling Motor Fails.
⑤Main PCB Fails.
①Plug the terminal securely
or replace the wires.
②Replace Down-Stroke
Subassembly.
③Replace Up-Stroke Sub-
assembly.
④Replace Rolling Motor.
⑤Replace main PCB.
①Page 23/18
②&③
Page 19/8
④Page 17/6.2
⑤Page 23/18
05
No kneading.
①The terminals on main PCB
and wires are poorly
connected.
②Kneading motor fails.
③Main PCB fails.
①Plug the terminal securely
or replace the wires.
②Replace the kneading
motor.
③Replace main PCB.
①&③
Page 23/18
②Page 16/6.1
06 No tapping.
①The terminals on main
PCB and wires are poorly
connected.
②Tapping motor fails.
③Main PCB fails.
①Plug the terminal securely.
②Replace the tapping motor.
③Replace main PCB.
①&③
Page 23/18
②Page 17~18
/6.3
07
No response
when pressing
the keys on the
remote
controller.
①The terminals and wires are
poorly connected.
②The PCB in the remote
controller fails.
①Plug the terminal securely
or replace the wires.
②Replace the remote
controller.
①Page 20/11
②Page 20/10
08
Back rest cannot
be reclined or
raised
①The terminals of reclining
actuator and wires are poorly
connected.
②The reclining actuator fails.
③Main PCB fails.
①Plug the terminal securely.
②Replace reclining actuator.
③Replace main PCB.
①&②Page
21~22/
15
③Page 23/18

8
09
Foot rest cannot
be raised or
lowered.
①The terminals of foot rest
actuator and wires are
poorly connected.
②The foot rest actuator fails.
③Main PCB fails.
①Plug the terminal securely.
②Replace foot rest actuator.
③Replace main PCB.
①&②Page
22/16
③Page 23/18
10 No gas charging
in the seat-pad.
①The terminal of the snuffle
valves and wires are poorly
connected.
②The snuffle valves fail.
③The inflator pump fails.
④Main PCB fails.
①Plug the terminal securely.
②Replace the snuffle valves.
③Replace the inflator pump.
④Replace main PCB.
①&②&③
Page24/19
④Page 23/18
11 No gas charging
in the foot rest.
①The terminal of the snuffle
valves and wires are poorly
connected.
②The snuffle valves fail.
③The inflator pump fails.
④Main PCB fails.
①Plug the terminal securely.
②Replace the snuffle valves.
③Replace the inflator pump.
④Replace main PCB.
①&②&③
Page24/19
④Page 23/18
12
No gas charging
in the veil
for backrest
①The terminal of the snuffle
valves and wires are poorly
connected
②The snuffle valves fail
③The inflator pump fails
④Main PCB fails
①Plug the terminal well
②Replace the snuffle valves
③Replace the inflator pump
④Replace main PCB
①&②&③
Page24/19
④Page 23/18
13
No extending
Or shrinking
of the calves-rest
①The terminals and wires are
poorly connected
②The output voltage is not
24VAC
③The limit sensor fail
④Motor fails
①Plug the terminal well
②Replace the main PCB
③Replace the limit sensor
④Replace the motor
①Page 25/22
②Page 23/18
③Page 26/24
④Page 25~26
/23

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V. Troubleshooting flow chart
Notes for repairing chair or replacing parts:
①Make sure the power is OFF before tearing down the wires, moving terminals or replacing parts.
②Semiconductors (such as IC and others) are very easy to be damaged by static, so when you touch
the PCB, please make sure your body is grounding (by wearing a girding static ring), or your hands are
touching with earthing grip (household electrical appliances putting to earth, such as fridges, washers
and so on) to release all static of the body.
1. No function when starting.
N Y
Y N
Y
否
是N
N
Y
Y Y
N
N
N
Y
否
N
Is the LCD
illuminating? Is the fuse melted? Replace fuse.
(Page 24/20)
Are the terminals of Up
and Down Stroke
Subassembly connected
securely?
Is the power cord
open-circuit?
The switches of Up and Down
Stroke Subassembly fail or not?
The EMC Board
fails or not?
Replace the power
supply cord.
Replace it.
(Page 23/18)
Connect
securely.
Replace them.
(Page 19/8)
Is kneading on without pressing any
key when starting?
Width Inspection
Board fails or not?
Replace main PCB.
(Page 23/18)
Replace Width
Inspection Board.
(Page 18/7.1)

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2. No width switchover.
N
Y
Y
N
3. No function（fixed-spot or partial）
N
Y
4. No rolling
N
YY
NY
NY
N
Are the terminals of Width Inspection Board and main
PCB connected securely? Connect securely.
Width Inspection Board fails or not? Replace it.
(Page 18/7.1)
Replace main PCB.
(Page 23/18)
Are the terminals of main PCB connected
securely?
Connect securely.
Replace Main PCB.
(Page 23/18)
Are the terminals of rolling motor wire and
main PCB connected securely? Connect securely
Rolling motor fails or not
Replace the motor
(Page 17/6.2)
Up stroke Photo-electricity subassembly fails or not Replace it
(Page 19/8)
Down stroke Photo-electricity subassembly fails or not Replace it
(Page 19/8)
Replace main PCB
(Page 23/18)