Johnson J-5800 User manual

J-5800 MASSAGE CHAIR
SERVICE MANUAL
2014/03/17
EV 2

Johnson Health Tech. Co., Ltd.
Summary
1. Product specification
2. Engineering mode introduction
2-1. Motor testing (P1) 2-2. Sensor testing (P2) 2-3. Current testing (P3)
2-4. Air pressure testing (P4) 2-5. Software version detection model (PU)
3. Error codes
3-1. OF, 90 3-2. A0 3-3. A1 3-4. A2, A3, B0, B1
3-5. B2, B3, C0, C1 3-6. D0 3-7. E0 3-8. E1, E2 3-9.E3
4.Common troubleshooting
4.1 Fail to start 4.2 Pushrod motor 4.3 Single air bag
4.4 All air bags 4.5 All air bags 4.6 Machine core
5. Appendices
5.1 Replace the machine core 5.2 Software update 5.3 Adjust machine core motor current
5.4 Complete machine breakdown drawing 5.5 Machine core breakdown drawing
5.6 Lower control panel breakdown drawing
Thank you! (Contact us)

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Foreword
Precautions during repairs and faults:
a. When disassembling, unplugging connectors and replacing parts, make
sure to unplug or turn off the power.
b. As semiconductors (IC, etc.) are prone to being damaged by static
electricity, please use human body electrostatic discharge ground wire if it is
required to directly contact the baseplate when performing operations, or
touch the ground wire (ground wires of fridges, washing machines, etc.) with
bare hands to discharge the static electricity of the human body before
carrying out operations.
c. The circuit baseplate mixes high voltage (AC110V, AC220V) and low voltage
(12V, 5V), which may cause electric shock accident; so please do not have
direct contact without preparations.

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1.Product Specifications：

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1.Product Specifications：

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1. When the power is on and manual controller is not yet
actuated, press MANUAL MANUAL and LEG STRETCH LEG STRETCH on the
manual controller at the same time for 5 seconds and the
controller will display “ - - ”
2. Then press REPEAT REPEAT key to enter engineering mode
3. In the engineering mode,“ P0 ” will be displayed
2. Engineering mode introduction:
In the engineering
mode,“ P0 ” will be
displayed

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4 . Use UP UP and DOWN DOWN to select 8 modes,
including P0~P4+P7+P8+PU
5 . In mode selection state, press WIDE WIDE
to enter the mode to operate the
massage chair
6 . After mode selection, use
UP
UP and
DOWN
DOWN again to select the element to
be controlled, such as A0~A5
2. Engineering mode introduction:

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7 . After entering the mode, press STOP STOP key to return to the
previous layer of menu; this key has the same function as the
ESC key of the computer keyboard
8 . After element selection, use AIR STRENGTH to adjust the
element speed, and the intensity will be displayed as the air
pressure strength, with one to three representing from weak to
strong
2. Engineering mode introduction:

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Key Operation
Emergency stop Return to the previous layer of menu
Up Forward mode selection
down Reverse mode selection
Wide Select ok and the air bag moves or motor rotates forward
Narrow Motor rotates reverse
Power switch Exit engineering mode
Air bag strength (panel) Speed selection (3: high, 2: medium, 1: low)
LCD
LCD Operation
Time window Display selected element number and corresponding current or
position
Air pressure strength Speed display (3: high, 2: medium, 1:low)
2. Engineering mode introduction: Engineering mode introduction:

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— —
P0 : Hand controllertestingmode
P1 : Motor testing mode
P2 : Sensor testing mode
P3 : Current testing mode
P4 : Air bag testing mode
P7 : Automatic testing mode
P8 : Life testing mode
PU : Software version check
2. Engineering mode introduction: Engineering mode introduction:
P0 : Manual controller testing mode
P1 : Motor testing mode
PU : Software version check
P7 : Automatic testing mode
P8 : Life testing mode
P4 : Air bag testing mode
P3 : Current testing mode
P2 : Sensor testing mode

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P1 Motor testing mode
A0 : Up and down movement of machine core
A5 : Machine core pounding motion
A4 : Kneading-Forward and reverse rotation of machine core
A3 : Front and back movement of machine core
A2 : Up and down movement of chair back
A1 : Up and down movement of foot machine
Motor test mode is mainly used to test if each motor works normally and to adjust
chair angle when replacing elements
2-1. Engineering mode: P1
A6 : Forward and back movement of foot machine

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P2 sensor testing
C0 : Up and down movement of machine core
C4 : Kneading-Forward and reverse rotation of machine core
C3 : Front and back movement of machine core
C2 : Up and down movement of chair back
C1 : Up and down movement of foot machine
Sensor testing is mainly used to test and indicate limits and counts. When operating
motor in this mode, LCD time window will display the digit returned by the sensor. When
the digit exceeds 100, the carrying digit will display “massage intensity” (100~500) and
“motion menu”.
LCD sensing position display window will indicate whether the limit switch is triggered
2-2. Engineering mode: P2
C5 : Forward and back movement of foot machine

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Upper limit is
triggered
Tens and ones
of returned
values
Hundreds of
returned values
Current speed
of motor
motion
The left figure shows that the upper
limit is reached when the selected machine
core (C1) rises
When the upper limit light is, it means
that the machine core is unable to move
upward; when the lower limit light is on, the
machine core is unable to move downward
The “Massage Strength” lamp signal 1 of
massage intensity represents 100, 2
represents 200, and so on
“KNEAD” lamp represents 600,”KAT”
lamp represents 700.
We can tell by the above rules that the
returned value on the left figure is time
window (40) + motion menu lamp signal
(700) =740
2-2. Engineering mode: P2

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P3 current testing
D0 : Up and down migration current of machine core
D4 : Kneading-Forward and reverse rotation current of
machine core
D3 : Front and back migration current of machine core
D2 : Up and down migration current of chair back
Current testing is mainly used to test if the motor current is too high
When the returned number exceeds 100, the carrying digit will display “massage intensity”
(100~500)
D3 is a major test item; if the intensity is set to medium (air bag strength 2) and machine core
forward value is greater than 50, it is likely to generate error code D0 because the current is too
high to lower the sensitivity of induction mechanism
2-3. Engineering mode: P3

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P4 air bag testing
1 : shoulder air bag
5 : right arm air bag
3 : right waist air bag
Air bag testing is mainly used to test if the
air bag works normally, the inflation rate is
normal, there is leakage, etc.
It can also distinguish the position of the air
bag to be tested via the pattern on the
manual controller.
6: left hip air bag
7: right hip air bag
8: instep air bag
9 : thigh air bag
10 : calf air bag
11 : air bag below the leg
2 : left waist air bag
12 : air bag above the leg
4 : left arm air bag
2-4. Engineering mode: P4

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Shoulder
Waist
Arm
Hip
Thigh
Upper leg
Calf
Lower leg
Instep
2-4. Engineering mode: P4

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PU software version
U0 : manual controller software
version
U1 : lower control panel
software version
Software version check mode is generally used to confirm current version of massage chair and
confirm again if the update is successful after updating software
a. Press “up” or “down” key to make the time window display “PU” to enter software version check
function
b. Press “ok” function, and the time window displays “U0” to enter manual controller software
version check function
c. Press “air pressure strength” key, and the time window displays in a jumping loop of “v1”-“04”-
“v1”-“04”...... indicating that the manual controller software version is v104
d. Press “up” or “down” key to make the time window display “U1” to enter lower control panel
software version check function
e. Press “air pressure strength” key, and the time window displays in a jumping loop of “v1”-“05”-
“v1”-“05”...... indicating that the lower control panel software version is v105
f. Then, the software version is 104105
2-5. Engineering mode: PU

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•The error codes will appear on the machine’s manual controller and the machine will stop
•Maintenance personnel can judge the fault conditions and anticipate maintenance materials
based on the error code reported by the customer
Error Code
3. Error codes

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Anomaly
code Code description Cause of anomaly Countermeasures
0F
Inconsistency
between manual
controller model
and master control
panel model
1. Inconsistency between
manual controller model
and lower control panel
2. Inconsistency of software
versions
1. Confirm manual controller model
2. Replace with correct model software and then
confirm if the machine is normal
3. Replace the lower panel and then confirm if
the machine is normal
4. Ask for assistance of original factory
90 Communication
error
Communication
timeout
between manual
controller and lower
control panel
1. Confirm if connection between manual
controller and lower control panel is normal
2. Update software and then confirm if the
machine is normal
3. Replace the manual controller then confirm if
the machine is normal
4. Replace the lower panel and then confirm if
the machine is normal
5. Ask for assistance of original factory
3-1. Error code (0F, 90)

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Anomaly
code Code description Cause of anomaly Countermeasures
A0 Kneading seized
After the software gives
an instruction, the
kneading sensor of
machine core does not
return signal
1. Check if the connecting line contacts poorly
2. Check if the sensor works normally and the
sensor is centered
Kneading sensor
3-2. Error code (A0)