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3.
CIRCUIT DIAGRAM
@
POWER
..:.!
1
L
l_-
POWER CORD
1
'.
GROUND
$2
'NE3 'L'
8A
cl
Irr
l"J-
C2
I –1
C3
N
L
I
I
I
I
CAVITY
THERMAL
PROTECTOR
OPENS
AT 122*5JC
I
w
MAGNETRON
J
THERMAL
PROTECTOR
OPENS
AT 122f5"C
W
L
BK
COM
I
INTERLOCK
MONITOR
-
'RIMARY
.
\
{
07
w
IIN
I
cri LOCK SWITCH
@
NC
COM
Y
NO
w
7
\
Y
I BLOWER
MOTOR
Iy
Fq
Y
w
GEAR
MOTOR
o
+
J
I
HUMIDITY
SEN~OR
HIGH VOLTAGE
TRANSFORMER
~a
- ~
\
p
-!
1 CONNE&OR
—
L
I
I I
lC?l
I
—.
'-
11
"
FUSE
DIODE
4
1
I STEP
DOWN
4 KVDC
w
R
20 KVDC
•~~
DIODE
_l [
~
CIRCUIT
BOARD
+
CONNECTOR
Slol
I
E=
TOUCH
KEY
BOARD
775-
MAGNETRON
L—.
BK
WIRING COLOUR
BK BLACK
O OUANGE
BL BLUE
W
WHITE
Y
YELLOW
R
RED
Parts marked wlfh this s!gn are supplled with
h(gh voltage exceeding 250V
Parts marked with this s!gn have special
Figure 1
SECONDARY INTERLOCK
PRIMARY
INTERLOCK
DOOR
SWITCH MADE .
INTERLOCK
MONITOR
SENSING
RELAY2
SWITCH
SWITCH
SWITCH
CONDITION
COM
COM
COM
COM
NO
NC
NO
NO
DOOR OPEN
DOOR CLOSE
.
.
@
—
character!stlcs Important for microwave leakage
When replaclng any of these parts use only
manufacturers spec(fled part.
–2–
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