Sharp R-340A, Service Manual

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R-340A
7
MAGNETRON POWER TRANSFORMER H.V. RECTIFIER ASSEMBLY HIGH VOLTAGE CAPACITOR 1ST. LATCH SWITCH
2ND. INTERLOCK RELAY CONTROL SWITCH
MONITOR SWITCH MONITOR RESISTOR THERMAL CUT-OUT 95˚C
THERMAL CUT-OUT 125˚C
FAN MOTOR TURNTABLE MOTOR FUSE M10A TOUCH CONTROL PANEL KEY UNIT RELAY (RY-1, RY-2) FOIL PATTERN ON P.W.B. POWER SUPPLY CORD SHORTED WIRE HARNESS OPENED WIRE HARNESS OVEN LAMP OR SOCKET WALL OUTLET MISADJUSTMENT SWITCH HOME FUSE OR BREAKER BLOCKED COOLING FAN
BLOC
KED VENTILATION
NOISE FILTER HIGH VOLTAGE FUSE
Home fuse blows when power
supply cord is plugged into
wall outlet.
FUSE M10A blows when
power supply cord is plugged
into wall outlet.
Display does not show any-
thing when power supply cord
is plugged into wall outlet.
Display does not operate prop-
erly when STOP/CLEAR pad
is touched.
Oven lamp does not light at
door opened. (Display ap-
pears.)
Oven does not start when the
START pad is touched. (Dis-
play appears)
Oven lamp does not light (Dis-
play appears.)
Fan motor does not operate.
(Display appears.)
Turntable motor assembly
does not operate. (Display
appears.)
Oven or any electrical parts
does not stop when cooking
time is 0 or STOP/CLEAR pad
is touched.
Oven seems to be operating
but little or no heat is produced
in oven load. (Microwave
power level is set at HIGH)
Oven does not seems to be
operating properly when oven
is set for variable cooking
power. (Oven operates prop-
erly at HIGH and when the
STOP/CLEAR pad is touched
the oven stops.)
Oven goes into cook cycle but
shuts down before end of cook-
ing cycle.
OFF
CONDITION
PROBLEM
CONDITION
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
TEST PROCEDURE
ON
CONDITION
CK = Check / RE = Replace
A B C D E E E G F F H H I L M N O
RE CK CK RE CK CK CK CK CK
J K