Ogawa OG8020 Maintenance Service Manual page 7

3D PCB didn't
receive signals
14 from up limit
sensor within 40
seconds
Kneading motor or
15 tapping motor is
overload
Signals from
16 up&down limit
senaor is abnormal
Signals from
17 up&down limit
senaor is abnormal
Signals from
18 up&down limit
senaor is abnormal
Can't detect
signals from
19
footrest actuator
counting sensor
1.Up & down limit sensor
is defective
2.Up&Down limit sensor
wire is disconnected
3.Rolling motor is dead
or rolling motor wire is
disconnected
1.Kneading motor is
overload
2.Tapping motor is
overload
1.Up & down limit sensor
is defective
1.Up & down limit sensor
is defective
2.Up&Down limit sensor
wire is disconnected
3.Rolling motor is dead
or rolling motor wire is
disconnected
1.Up & down limit sensor
is defective
1.Footrest actuaor is
defective2.Footrest
actuator motor wire is
disconnected3.Footrest
actuator counting sensor
wire is disconnected
1.Change up&down limit
sensor
2.Check whether
up&down limit sensor
wire is connect good
3.Check whether
rolling motor wire is
connect good or change
massage mechanism
1.Change 3D PCB
1.Change up & down
limit sensor
1.Change up&down limit
sensor
2.Check whether
up&down limit sensor
wire is connect good
3.Check whether
rolling motor wire is
connect good or change
massage mechanism
1.change up & down
limit sensor
1.Change footrest
actuator2.Check
whether footrest
actuator motor wire is
well connected3.Check
whether footrest
actuator counting
sensor wire is well
connected
when start
automatic
detection
When turn on
the chair.it
will check by
itself
When start
automatic
detection
when start
automatic
detection
when start
automatic
detection
when start
automatic
detection