Kenmore 795.78733.804 Service Manual page 45

Communication Error
CON5
MAIN
PWB
Is Er-CO displayed?
Yes
Top Display PWB
Is the connection loose?
CON01
No
Top Display PWB
Is the voltage between
pins 2 and pin 3 of
CON101?
Pin2 BO
pin3 BN
Receiver fail Voltages
Te st Point Result
pin2 To pin3 0 V or 5 V
No
Hinge
RD(Tx)
4 4
BN(Rx)
3 3
BO(GND)
2 2
WH/BK(12V)
1 1
Wiring diagram
Yes Reconnect
Replace the
Top Display
YES
PWB
(Position
No : 207C)
- 45 -
RDRx)
4
4
BN(Tx)
3
3
DISPLAY
BO(GND)
2
2
WH/BK(12V)
1
1
Top Display PWB
Is the voltage between
pin2 and pin4 of CON01
0 V or 5 V?
Transmitter Voltages
Test Point Result
Pin2 To pin4 0 V or 5 V
No
Is the joint connection
loose In the right Hinge?
No
CON01
Top
PWB
* Rx: Receiver
Tx: Transmitter
Replace the
Yes
Top Display
PWB
(Position
No : 207C)
Pin2 BO
Pin4 RD
Reconnect
Yes