Troubleshooting The Keypad In The Display Unit - Electrolux W365H Service Manual

12

Troubleshooting the keypad in the display unit

When a key is pressed on the keypad of the programme unit, two of the
outputs on the keypad close. By disconnected the flat cable from the display
card, pressing a key and the measuring the resistance between the outputs
that should close, it is possible to determine correct operation of any one
key.
The table below shows the outputs that need to be closed for each key:
Fig.
48
Key Outputs that should close
1
2
3
4
5
6
7
8
9
0
A
B
C
D
48
B C
1 2
4 5
7 8
A
50
12. Troubleshooting
2 + 7
2 + 6
2 + 5
3 + 7
3 + 6
3 + 5
4 + 7
4 + 6
4 + 5
5 + 8
6 + 8
1 + 2
1 + 3
7 + 8
1 8
D
3
6
9
0
4231
B C D
1 8
Service
Manual
1 2 3
6
4 5
7 8 9
0
4232
A
438 9152-11/03
04.03