R-950A
7
AUTO ROAST/ AUTO GRILL/ AUTO BAKE
AUTO ROAST/ AUTO GRILL/ AUTO BAKE will automati-
cally compute and set the cooking mode, oven tempera-
ture, microwave power and the cooking time. Select the
menu by touching the AUTO ROAST, AUTO GRILL, or
AUTO BAKE pad, and enter the weight/ quantity by
touching the number pads. When the START pad is
touched, the oven works on Simul Cooking mode, Con-
vection Cooking mode or Grill Cooking mode according to
the special cooking sequence.
CONVECTION
MOTOR
THERMISTOR
Sensing
Voltage
ON
OFF
ON
OFF
ON
OFF
0 2
24
30
64 (sec.)
3 sec.
Sensing the voltage across the temperature measurement circuit.
6 sec.
3
32 (sec.)
DOOR OPEN MECHANISM
The door is opened by pushing the open button on the
control panel, refer to the Figure D-1.
When the open button is pushed, the open lever pushes up
the switch lever, and then the switch lever pushes up the
the latch head. The latch heads are moved upward and
released from latch hook. Now the door will open.
LATCH HOOK
LATCH
HEADS
2ND. INTERLOCK
RELAY CONTROL
SWITCH
MONITOR SWITCH
1ST. LATCH SWITCH
SWITCH LEVER
OPEN LEVER
DOOR OPEN
BUTTON
Figure D-1. Door Open Mechanism
1ST. LATCH SWITCH, 2ND. INTERLOCK RELAY
CONTROL SWITCH
1. When the oven door is closed, the contacts (COM-NO)
must be closed.
2. When the oven door is opened, the contacts (COM-
NO) must be opened.
MONITOR SWITCH
1. When the door is closed, the contacts (COM-NC) must
be opened.
2. When the oven door is opened, the contacts (COM-
NC) must be closed.
3 If the oven door is opened and the contacts (COM-NC)
of 1st. latch switch and 2nd. interlock relay fail to open,
the fuse M8A blows simultaneously with closing the
contacts (COM-NC) of the monitor switch.
CAUTION: BEFORE REPLACING A BLOWN FUSE M8A
TEST THE 1ST. LATCH SWITCH, 2ND. IN-
TERLOCK RELAY, MONITOR SWITCH AND
MONITOR RESISTOR FOR PROPER OP-
ERATION. (REFER TO CHAPTER “TEST
PROCEDURE”).
THERMAL CUT-OUT 170˚C (CONV.)
The thermal cut-out protect the convection motor or outer
case cabinet against overheating. If its temperature of the
termal cut-out goes up higher than 170˚C because the
convection fan or cooling fan is interrupted, the ventilation
openings are obstructed or other abnormal matter occurs,
thermal cut-out will open and switch off the oven. When the
oven cools itself down to the operating temperature of
155˚C, the contacts of the thermal cut-out will close again.
THERMAL CUT-OUT 125˚C (GRILL)
This thermal cut-out protects the outer case cabinet against
overheating. If the temperature goes up higher than 125˚C
because the fan motor is interrupted or the ventilation
openings are blocked, the thermal cut-out will open and
line voltages to the all electrical parts will be cut off and the
operation of the oven will be stopped. The defective
thermal cut-out must be replaced with a new one.
THERMAL CUT-OUT 95˚C (FAN MOTOR)
The thermal cut-out protect the fan motor against over-
heating. If its temperature goes up higher than 95˚C
because the fan motor is locked or the ventilation operat-
ing are blocked, the contacts of the thermal cut-out will
open and switch off all electrical parts. When the thermal
cut-out cools itself down to 75˚C, the contacts of the
thermal cut-out will close again.
TEMPERATURE FUSE 150˚C (MG)
This fuse protects the magnetron against overheating. If
the temperature goes up higher than 150˚C because the
FUNCTION OF IMPORTANT COMPONENTS
