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Top
DISPLAY
PWB
MAIN
PWB
1
2
3
4
Hinge
RD(Tx)
BN(Rx)
BO(GND)
WH/BK(12V)
RDRx)
BN(Tx)
BO(GND)
WH/BK(12V)
1
2
3
4
1
2
3
4
CON5
CON01
1
2
3
4
* Rx: Receiver
Tx: Transmitter
Communication Error
Wiring diagram
Is Er-CO displayed?
Yes
Top Display PWB
Is the connection loose?
Replace the
Top Display
PWB
Top Display PWB
Is the voltage between
pins 2 and pin 3 of
CON101?
Yes
No
No
Reconnect
Top Display PWB
Is the voltage between
pin2 and pin4 of CON01
0 V or 5 V?
No
Is the joint connection
loose In the right Hinge?
Reconnect
Yes
No
0 V or 5 V
pin2 To pin3
Result
Te
Receiver fail Voltages
Transmitter Voltages
st Point
0 V or 5 V
Pin2 To pin4
Result
Test Point
YES
Yes
CON01
Pin2 BO
Pin4 RD
Pin2 BO
pin3 BN
(Position
No : 207C)
Replace the
Top Display
PWB
(Position
No : 207C)