Sharp AX-1100 Service Manual page 7

Before replacing the Printed Wiring Board
Some normal boards are found in board units that have been returned due to oven failure. So, most of board replacements may arise from poor har-
ness connection. Accordingly, before replacing any board that was judged to require its replacement, use the following procedure to re-check that the
connection terminal of a connector has been properly inserted:
When the connectors have been incorrectly inserted to the control unit.
1.
PWB CONNECTOR
CONTROL UNIT CN-A
CN-B
RY1
RY2
RY3
RY4
When latch switch adjustment is incorrect
2.
When latch switch adjustment is incorrect, symptoms such as no heating, no heating start, no activation even with start button pressed, etc. will
occur.
3. Final error code is memorized in ROM (control unit). (Refer to Error list EE code on page 10-1.)
4. When the intake damper motor is locked or wire leads to it are not connected, cooking mode is stopped 1minute after starting cooking.
5. 3minutes after stopping cooking, energy save mode will work and no segment is displayed.
The oven can not be powered on.
(Fan motor, oven lamp, damper motor and /or pump motor do not operate.)
No heating can be done. Thermistor error EE01 or EE12 appears.
Antenna motor, high voltage transformer, oven lamp, engine heating element, and grill heating ele-
ment do not operate
Engine heating element does not operate.
Grill heating element does not operate.
Antenna motor and high voltage transformer do not operate.
2 – 3
Symptom
AX1100(R)