Ogawa OG8020 Maintenance Service Manual page 6

Can't receive wide
08
signal
3D PCB can't
09
receive mid signal
Can't receive
10
narrow signal
Signals from wideth
11 inspection board is
abnormal
Though not turn on
kneading function,
but 3D PCB still
12
detect signals from
wideth inspection
board
Detected signals
from up limit
13 sensor and down
limit sensor at
same time
1.Wideth inspection
board is defective2.The
wire of wideth inspection
board is broken or not
disconnected
3.3D PCB is
defective4.Kneading
motor is dead or kneading
motor belt is loosen
1.Wideth inspection
board is defective
2.The wire of wideth
inspection board is
broken or disconnected
3.3D PCB is defective
4.Kneading motor is dead
or kneading motor belt is
loosen
1.Wideth inspection
board is defective
2.The wire of wideth
inspection board is
broken or not well
connected
3.3D PCB is defective
4.Kneading motor is dead
or kneading motor belt is
loosen
1.3D PCB is defective
1.3D PCB is defective.
1.up&down limit sensor is
defective2.The wire
which connect up & down
limit sensor to 3D PCB is
broken
3.3D PCB is defective
1.Change wideth
inspection
board.2.Change the
wire of wideth
inspection board
3.Change 3D PCB
4.Fixing kneading belt
or change massage
mechanism
1.Change wideth
inspection board.
2.Change the wire of
wideth inspection
board 3.Change
3D PCB
4.Fixing kneading belt
or change massage
mechanism
1.Change wideth
inspection board.
2.Change the wire of
wideth inspection
board 3.Change
3D PCB
4.fixing kneading belt
1.Change 3D PCB
1.Change 3D PCB
1.Change up&down limit
sensor2.Change the
wire which connect
up&down limit sensor
and 3D PCB.
3.Change 3D PCB
when start
automatic
detection
when start
automatic
detection
when start
automatic
detection
when start
automatic
detection
when start
automatic
detection
when start
automatic
detection