R-2277 - Sharp Home Appliance Service Manual (repair manual). Page 10

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8
R-2277
R-2287
CONDITION
“  .  “ does not appear on display when power
cord is plugged into wall outlet.
Control panel can not accept key in.
Fuse F2 F6.3A blows when the door is opened.
Home fuse blowns when power cord is plugged
into wall outlet.
Weak point/ fuse F1 blowns when power cord is
plugged into wall outlet.
Oven lamp, fan motor and stirrer motor do not
work for 1 minute whenever the door is opened
or after cooking.
Fuse F2 F6.3A blowns when power cord is
plugged into wall outlet.
Oven lamp does not light when door is opened.
(Blower and stirrer motors work)
Blower motor does not work when door is
opened. (Oven lamp  lights and stirrer motors
work)
“EE  1” appear in display
“EE  2” appear in display
“EE  3” appear in display
“EE  6” appear in display
“EE  7” appear in display
“EE  9” appear in display
Oven lamp, blower motor and stirrer motor do
not work.
Oven lamp does not work.
Blower motor does not work.
Oven does not stop after end of cooking cycle.
(Oven lamp, blower motor and stirrer motor
stop)
Home fuse blows when starting the oven.
Oven goes into cook cycle but shuts down
before end of cooking cycle.
Oven seems to be operating but no heat is
produced in oven load. (Microwave power level
is set at 10%.)
It passed more than 1 minute after cooking but oven
lamp, blower motor and stirrer motor do not stop.
“EE  0” appear in display
“EE 16” appear in display
“EE 17” appear in display
“EE  8” appear in display
“EE  10” appear in display
Stirrer motor does not work
PPROBLEM
TEST PROCEDURE
A
A
B
B
C
C
C
D
D
E
E
E
E
E
F
F
G
H
ON
CONDITION
OFF
CONDITION
MAGNETRON MG1
MAGNETRON MG2
HIGH VOLTAGE TRANSFORMER T1
HIGH VOLTAGE TRANSFORMER T2
H.V. RECTIFIER ASSEMBLY FOR MG1
H.V. RECTIFIER ASSEMBLY FOR MG2
H.V. WIRE HARNESS
H.V. CAPACITOR C1
H.V. CAPACITOR C2
1ST. LATCH SWITCH SW1
2ND. LATCH SWITCH SW2
3RD. LATCH SWITCH SW3
MONITOR SWITCH SW4
STOP SWITCH SW5
WEAK POINT A018 / FUSE M6.3A WP1
WEAK POINT A018 / FUSE M6.3A WP2
WEAK POINT A017 /  FUSE 13A F1
FUSE F6.3A F2
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
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