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R-930AK
R-930AW
PROCEDURE
LETTER
If the control unit responds by clearing with a beep the key unit is faulty and must be replaced. If the control
unit does not respond, it is a faulty and must be replaced. If a specific pad does not respond, the above
method may be used (after clearing the control unit) to determine if the control unit or key pad is at fault.
S
RELAY TEST
Remove the outer case and check voltage between Pin Nos. 7 and 9 of the 9- pin connector (A) on the
control unit an A.C. voltmeter. The meter should indicate 120 volts, if not check the oven circuitry.
Shut-off, Cook and Heater Relay Test
These relays are operated by D.C. voltage
Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation or convection
cooking operation.
DC. voltage indicated ............. Defective relay.
DC. voltage not indicated ........ Check diode which is connected to the relay coil. If diode is good, control
RELAY SYMBOL
RY1
RY2(COOK)
RY3(HEATER)
RY4
RY5
RY6
T
COMPU DEFROST TEST
(1) Place one cup of water in the center of the turntable tray in the oven cavity.
(2) Close the door, touch the "COMPU DEFROST" pad twice and touch the Number pad "5". And then touch
the "START" pad.
(3) After 2 sec. Now the oven is in COMPU DEFROST cooking condition.
(4) The oven will operate as follows.
WEIGHT
0.5lbs
(5) If improper operation is indicated, the control unit is probably defective and should be checked.
U
PROCEDURES TO BE TAKEN WHEN THE FOIL PATTERN ON THE PRINTED WIRING BOARD
(PWB) IS OPEN.
o protect the electronic circuits, this model is provided with a fine foil pattern added to the primary on
the PWB, this foil pattern acts as a fuse. If the foil pattern is open, follow the troubleshooting guide
given below for repair.
TEST PROCEDURES
G 5
G 6
MINUTE
SENSOR
COMPU
G 4
PLUS
COOK
DEFROST
G 3
POPCORN
PREHEAT
CONVEC
SENSOR
SLOW
LOW MIX
G 2
REHEAT
COOK
BAKE
CUSTOM
G 1
HELP
unit is defective.
OPERATIONAL VOLTAGE
Approx. 19.0V D.C.
Approx. 18.0V D.C.
Approx. 18.0V D.C.
Approx. 19.0V D.C.
Approx. 19.0V D.C.
Approx. 19.0V D.C.
1ST STAGE
2ND STAGE
LEVEL
TIME
LEVEL
70%
47sec.
0%
18
COMPONENT TEST
G 7
G 8
G 9
G10
COMPU
COMPU
COMPU
BROIL
ROAST
BAKE
1
2
3
100˚F
150˚F
275˚F
6
7
8
350˚F
375˚C
400˚F
KITCHEN
POWER
CLOCK
TIMER
LEVEL
CONNECTED COMPONENTS
Oven lamp / Turntable motor
Power transformer
Heating element
Damper motor
Convection motor
Cooling fan motor
3RD STAGE
TIME
LEVEL
TIME
52sec.
50%
32sec.
G11
G12
HIGH MIX
BROIL
ROAST
4
5
300˚F
325˚F
9
0
425˚F
450˚F
START
STOP
TOUCH ON
CLEAR
4TH STAGE
LEVEL
TIME
30%
40sec.