Sharp R-630A Service Manual page 12

Grill and microwave oven
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R-630A (W)
R-630A (IN)
R-630A (B)
_ TEST PROCEDURES -
CONDITION
OFF
CONDITION
TEST PROCEDURE
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
PROBLEM
Fuse
F8A blows when the door is
opened.
oO QO
Oo
m
A
HIGH
VOLTAGE
TRANSFORMER
MAGNETRON
H.V.
RECTIFIER
ASSEMBLY
H.V.
HARNESS
HIGH
VOLTAGE
CAPACITOR
1ST,
LATCH
SWITCH
STOP
SWITCH
oO
m
nT
1
THERMAL
CUT-OUT
150°C
(OVEN) TURNTABLE
MOTOR FAN
MOTOR NOISE
FILTER
THERMAL
CUT-OUT
150°C
(MG.)
FUSE
F8A
MONITOR
SWITCH
MONITOR
RESISTOR
[e)
GRILL
HEATING
ELEMENT
POWER
SUPPLY
CORD SHORTED
WIRE
HARNESS
Home fuse blows when power cord is
plugged into wall outlet.
Oo
"88:88" does not appear in display
win power cord is plugged into wall
outlet.
oT
oO
Display does not operate properly
when STOP button is touched.
Oven lamp does not light when door
is opened. (Display operates.)
oO
; L
COOKING
CONDITION
(COMMON MODE)
Oven does not start when the STARTXD|
button is touched. (Display operates.)
Fan motor does not operate. (Oven
lamp lights.)
Tumtable motor does not operate.
(Oven lamp lights.)
Oven or any electrical parts does not
stop when cooking time is 0 or STOP
button is touched.
|_|
Display operates properly but all elec-
trical parts do not operate.
f
Oven goes into cook cycle but shuts
down before end of cooking cycle.
MICROWAVE,
COOKING
CONDITION
GRILL
COOKING
CONDITION
COMBI-GRILL
COOKING
CONDITION
Oven seems to be operating but little
or no heat is produced in oven load.
(Microwave power control is set at
HIGH
O}O}O/
0; OJO
a:
Oven does not seem to be operating
properly during variable cooking con-
dition. (Oven operates properly at
HIGH)
Grill heating element does not heat.
{Oven seems to be operating.)
Fuse M8A blows
10

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R-630awR-630ainR-630ab

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