Daewoo KOR-616T2S, Руководство по обслуживанию

Страница: 37 / 56

36
1. Type of encoding and key names
The tact switch keyboard consists of 9 keys whose aconfigurations are described above.
2. Key check procedure
To determine if the tact switch keyboard is defective or not, check the continuity of each button contacts
with a multimeter.
1) CLOCK button: Between 7 and 10 6) MORE button: Between 7 and 11
2) STOP/CLEAR button: Between 8 and 10 7) START button: Between 8 and 11
3) LESS button: Between 9 and 10 8) AUTO COOK button: Between 12 and 11
4) DEFROST button: Between 12 and 10 9) +1 min button: Between 14 and 11
5) POWER button: Between 14 and 10
NOTE
:
Before following the particular steps listed above in the trouble shooting guide for failure,
please check for the continuity of each wire-harness between the tact switch keyboard
and PCB assembly.
KEYBOARD CHECK PROCEDURE
CLOCK
STOP
CLEAR
LESS
DEFROST POWER
+1 min
AUTO
COOK
START MORE
CN101
7
9
q
r w
0
8
Check each button
for continuity the
tach switch deyboard
as the following
keyboard check
procedure. Display does
not show
program ming
at all, even
if button key is
pressed
Normal
Normal
Malfunction of
touch control
circuity of control
box
main-assembly
Malfunction of
touch control
circuitry of control
box sub-assembly
Replace
control box
main
assembly
Replace
control box
sub-assembly
Condition
Check
Cause Result Remedy