Function Of Important Components - Sharp R-895(AL)M Service Manual

3. COOLING FAN OPERATION
OPERATION MODE
PREHEAT
CONV.
Others
After cooking
4. CONVECTION POWER SETTING
PREHEATING
TEMP 250˚C, 230˚C, 220˚C, 200˚C, 180˚C, 160˚C, 130˚C, 100˚C, 70˚C, 40˚C
HEATING TOP
ELEMENT BOTTOM
COOLING FAN
CONV. FAN
CONVECTION
TEMP
WITHOUT HEATING
PREHEATING ELEMENT BOTTOM
WITH HEATING
PREHEATING ELEMENT BOTTOM
COOLING FAN
CONV. FAN
DUAL CONVECTION
TEMP
WITHOUT HEATING
PREHEATING ELEMENT BOTTOM
WITH HEATING
PREHEATING ELEMENT BOTTOM
MICRO
COOLING FAN
CONV. FAN
NOTE The oven temp was checked by the thermometer when each stages are started .
If the oven temp is same or higher than 105˚C, the oven was judged as "with preheating".
When the oven temp is lower than 105˚C or the cooling fan stops, the oven was judged as "without
preheating".
The door can be opened by pulling the door handle. When
the handle is pulled, the latch head is pulled, the latch head
is moved upward, and released from the latch hook now
the door can be opened.
MONITORED LATCH SWITCH
1. When the oven door is closed, the contacts (COM-NO)
of the switch must be closed. And the contacts (COM-
NC) must be opened.
2. When the oven door is opened, the contacts (COM-
NO) of the switch must be opened. And the contacts
(COM-NC) must be closed.
OPERATION SEQUENCE
DEVICE
Cooling
Cooling fan
Cooling fan
The cooling fan continues to rotate when Oven temperature is more than 120˚C. Then,
Cooling fan
it stops when it is less than 105˚C
NOW COOLING is indicated during the cooling fan movement after operation is finished.
Indication
(It isn't indicated during a fan movement to stop on the way.)
100%
100%
60%
0%
250˚C 230˚C
TOP 50% 40%
100% 90%
TOP 50% 40%
90% 70%
250˚C 230˚C
TOP 50% 40%
100% 90%
TOP 50% 40%
90% 70%

FUNCTION OF IMPORTANT COMPONENTS

POWER CONTROL
60% 60 min. then 100%
220˚C 200˚C 180˚C
40% 30% 20%
80% 70% 70%
40% 30% 20%
60% 50% 50%
60% 60min, then 100%
100%
220˚C 200˚C 180˚C
40% 30% 20%
80% 70% 70%
40% 30% 20%
60% 50% 50%
10%,30%,50%
100%
100%
Figure D-1. Door Open Mechanism
R-895M - 9
60%
100%
160˚C 130˚C 100˚C
10% 10% 10%
60% 50% 40%
10% 10% 10%
50% 50% 40%
160˚C 130˚C 100˚C
10% 10% 10%
60% 50% 40%
10% 10% 10%
50% 50% 40%
Door
Latch hook
Latch
Heads
Tab
SW2: Stop switch
SW3: Monitor switch
SW1: Monitored
latch switch
70˚C 40˚C
10% 10%
30% 20%
10% 10%
30% 20%
0%
70˚C 40˚C
10% 10%
30% 20%
10% 10%
30% 20%
0%