SHARP SERVICE MANUAL
MICROWAVE OVEN
-- MODEL
R-2V54
In interests of user-safety the oven should be restored to its original
condition and only manufacturer original spare parts must be used.
This is a supplemental Service Manual for Model R-2V54.
This model is quite similar to Base Model R-2V52 (Refer No. is S9003R2V52PJ/).
Use this supplemental manual together with the Base Model Service Manual.
Refer to the Base Model Service Manual for complete operation, service information, etc.
TABLE OF CONTENTS
Page
GENERAL IMPORTANT INFORMATION ..,...........,.........,.........,..............................................,....,............... 1
APPEARANCE VIEW
,....,,........................,..................,...........,...............,.............,.............,.........
Inside Cover
WARNING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..‘.....................................................................................~.............
I
PRODUCT SPECIFICATIONS ..,.......................,..................................................,..................,........................ 2
SERVICING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............~................... 3
TEST PROCEDURE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........~..........
4
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE . . . . . . ..*...............................................
SCHEMATIC DIAGRAM .,,....,....~..............................,....,..............,.......,....,,...........................,...,,............,......
;
PICTORIAL DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .............
9
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*............*.....................*...............................................................................
10
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SHARP CORPORATION
R-2V54
APPEARANCE VIEW
CONTROL PANEL
+ Place the roller stay on the coupling in the oven and
seat the turntable on the roller stay.
\
VARIABLE COOKING CONTROL
START
OPEN DOOR
c
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4
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1. Timer (O-60 minutes dual speed timer)
Turn to set cooking time or weight of defrost
food.
2. Meat defrost guide (inner scale}
3. Variable cooking control
There are five power levels Approximate percentage of microwave power for each power
level;
HIGH
100%
MED HIGH (MIEIUM HIGH)
70%
MED (MIEIUM)
50%
MED LOW/DEFROST
(MEDIUM LOW/DEFROST
30%
LOW -.
10%
4. Door open button
5. START button
6. Hole of oven cavity
7. Ventilation openings
8. See through door
9. Safety door latches
1 O.Hinges
11 .Waveguide cover
12.0ven lamp
13.Roller stay
14.Turntable
15.Access cover for oven lamp replacement
16.Power supply cord
R-2V54
SERVICE MANUAL
SHARP
MICROWAVE OVEN
R-2V54
GENERAL IMPORTANT INFORMATION
This Manual has been prepared to provideSharp Corp. Service
engineers with Operation and Service Information.
It is recommended that service engineers carefully study the
entire text of this manual and base model manual, so they will
be qualified to render satisfactory customer service.
CAUTION
MICROWAVE RADIATION
Service engineers should not be exposed to the microwave energy which may radiate from the magnetron or
other microwave generating devices if it is improperly
used or connected. All input and output microwave
connections, waveguides, flanges and gaskets must be
secured. Never operate the device without a microwave
energy absorbing load attached. Never look into an
open waveguide or antenna while the device is energized.
WARNING
Never operate the oven until the following points are
ensured.
(A)The door is tightly closed.
(B) The door brackets and hinges are not defective.
(C)The door packing is not damaged.
(D)The door is not deformed or warped.
(E) There is not any other visible damage with the oven.
Servicing and repair work must be carried out only by
trained service engineers.
All the parts marked ‘I*” on parts list are used at voltages
more than 250V.
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PRODUCT SPECIFICATIONS
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WIRING DIAGRAM
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SHARP CORPORATION
OSAKA, JAPAN
PRODUCT SPECIFICATIONS
ITEM
Power Requirements
j 240 Volts
50 Hertz
DESCRIPTION
Power Consumption
Power Output
Case Dimensions
Cooking Cavity Dimensions
Turntable diameter
Control Complement
Set Weight
Single phase, 3 wire earthed
0.96 kW, Approx. 4.2 Amperes
I 600 watts nominal of RF microwave energy (By method of IEC 705 1988)
500 watts nominal of RF microwave energy (2 litre water load)
Operating frequency of 2450M Hz
Width 450 mm
Height 285 mm including foot
Depth 340 mm
Width 285 mm
Height 185 mm
Depth 313 mm
272mm
60 min. Dual Speed Timer
Microwave Power for Variable Cooking
Repetition Rate;
HIGH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Full power throughout the cooking time
MED HIGH (MEDIUM HIGH)
MED
. . . . . . . . . . . . . . approx. 70% of Full Power
(MEDIUM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
approx. 50% of Full Power
MED LOW (MEDIUM LOW DEFROST) approx. 30% of Full Power
LOW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
approx.
10% of Full Power
Start Button
Approx. 13.0 kg
GENERAL INFORMATION
WARNING
THIS APPLIANCE MUST BE EARTHED
IMPORTANT
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:
GREEN-AND-YELLOW
: EARTH
BLUE
: NEUTRAL
BROWN
: LIVE
SERVICING
WARNING TO SERVICE PERSONNEL
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with any part
of the high voltage circuit will result in electrocuition.
REMEMBER TO CHECK 3D
1) Disconnect the supply.
2) Door opened, and wedged open.
3) Discharge high voltage capacitor.
WARNING AGAINST THE CHARGE OF THE
HIGH-VOLTAGE CAPACITOR
The high-voltage capacitor remains charged
about 60 seconds after the oven has been
switched off. Wait for 60 seconds and then
short-circuit
the
connection of
the
high-voltage capacitor (that is, of the connecting lead of the high-voltage rectifier)
against the chassis with the use of an insulated screwdriver.
Sharp
recommend that
wherever possible
fault-finding is carried out with the supply disconnected. It may in, some cases, be necessary to
connect the supply after the outer case has been
removed, in this event carry out 3D checks and then
disconnect the leads to the primary of the power
transformer. Ensure that these leads remain isolated
from other components and the oven chassis. (Use
insulation tape if necessary.) When the testing is
completed carry out 3D checks and reconnect the
leads to the primary oEhe power transformer.
REMEMBER TO CHECK 4R
1) Reconnect all leads removed from components
during testing.
2) Replace the outer case (cabinet).
3) Reconnect the supply.
4) Run the oven. Check all functions.
Microwave ovens should not be run empty. To test
for the presence of microwave energy within a
cavity, place a cup of cold water on the oven
turntable, close the door and set the microwave
timer for two (2) minutes. Set the power level to
HIGH and push the START button. When the two
minutes has elapsed (timer at zero) carefully check
that the water is now hot. If the water remains cold
carry out 3D checks and re-examine the connections tothe component being tested.
When all service work is completed, and the oven is fully assembled, the microwave power output should
be checked and a microwave leakaqe test carried out.
TROUBLESHOOTING GUIDE
When troubleshooting the microwave oven, it is helpful
to follow the Sequence of Operation in performing the
checks. Many of the possible causes of trouble will
require that a specific test be performed. These tests
are given a procedure letter which will be found in the
“Test Procedure”section.
IMPORTANT: If the oven becomes inoperative be-
cause of a blown fuse (M6.3A) in the
1 st latch switch - 2nd latch switch monitor switch
- monitor resistor cir-
cuit, check the 1st latch switch, 2nd
latch switch,
monitor switch and
monitor resistor before replacing the
fuse (M6.3A).
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