R-216 (serv.man2). Complete — Sharp Home Appliance Service Manual (repair manual)

Model
R-216 (serv.man2)
Pages
32
Size
1.05 MB
Type
PDF
Document
Service Manual
Brand
Device
Home Appliance / Microwave Oven / Complete
File
r-216-sm2.pdf
Date

View Sharp R-216 (serv.man2) Service Manual online

R-216(W)
31
In interests of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
MODEL
R-216(W)
S5207R216PKW/
MICROWAVE OVEN
TABLE OF CONTENTS
Page
SERVICING ................................................................................................................. INSIDE FRONT COVER
CAUTION, MICROWAVE RADIATION .............................................................................................................  1
WARNING .......................................................................................................................................................... 1
PRODUCT SPECIFICATIONS .........................................................................................................................  2
GENERAL INFORMATION ................................................................................................................................ 2
APPEARANCE VIEW .......................................................................................................................................  3
OPERATION SEQUENCE ................................................................................................................................  4
FUNCTION OF IMPORTANT COMPONENTS ................................................................................................. 5
TROUBLESHOOTING GUIDE .........................................................................................................................  6
TEST PROCEDURE .........................................................................................................................................  7
CONTROL UNIT ASSEMBLYL ........................................................................................................................ 12
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ...........................................................  15
MICROWAVE MEASUREMENT ....................................................................................................................  21
WIRING DIAGRAM .........................................................................................................................................  22
PICTORIAL DIAGRAM ...................................................................................................................................  23
CONTROL UNITL CIRCUIT ............................................................................................................................ 24
PRINTED WIRING BOARD ............................................................................................................................. 25
PARTS LIST ...................................................................................................................................................  26
SHARP CORPORATION
  SERVICE MANUAL
32
R-216(W)
SERVICING
 REMEMBER TO CHECK 3D
1) Disconnect the supply.
2) Door opened, and wedged open.
3) To discharge the high voltage capacitor, wait for 60
seconds.
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 of the power trans-
former.
 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 power level to HIGH. And set  the
microwave timer for two (2) minutes. 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 to the
component being tested.
When all service work is completed, and the oven is fully assembled, the microwave power output should be
checked and microwave leakage test should be carried out.
WARNING TO SERVICE PERSONNEL
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts
of the high voltage circuit will result in electrocution. High voltage capacitor, High volyage transformer, Magnetron,
High voltage rectifier assembly, High voltage fuse, High voltage harness.
R-216(W)
1
SERVICE MANUAL
SHARP CORPORATION
OSAKA, JAPAN
MICROWAVE OVEN
R-216(W)
GENERAL IMPORTANT INFORMATION
This Manual has been prepared to provide Sharp Corp. Service
engineers with Operation and Service Information.
It is recommended that service engineers carefully study the
entire text of this manual, so they will be qualified to render
satisfactory customer service.
CAUTION
MICROWAVE RADIATION
DO NOT BECOME EXPOSED TO RADIATION FROM
THE MICROWAVE GENERATOR OR OTHER PARTS
CONDUCTING MICROWAVE ENERGY.
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 en-
sured.
(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 "*" on parts list are used at voltages
more than 250V.
Removal of the outer wrap gives access to potentials above
250V.
All the parts marked "
∆" on parts list may cause undue
microwave exposure, by themselves, or when they are
damaged, loosened or removed.
TEST PROCEDURE
SERVICING AND
TROUBLESHOOTING CHART
FUNCTION OF IMPORTANT
COMPONENTS
OPERATING SEQUENCE
APPEARANCE VIEW
PRODUCT SPECIFICATIONS
WIRING DIAGRAM
PARTS LIST
MICROWAVE MEASUREMENT
CONTROL PANEL ASSEMBLY
COMPONENT REPLACEMENT
 AND ADJUSTMENT PROCEDURE
2
R-216(W)
PRODUCT DESCRIPTION
SPECIFICATION
ITEM
DESCRIPTION
Power Requirements
230 - 240 Volts
50 Hertz
Single phase, 3 wire earthed
Power Consumption
1.21 kW
Power Output
800 W nominal of RF microwave energy (measured by method of IEC 60705)
Operating frequency 2450 MHz
Case Dimensions
Width
460 mm
Height
290 mm including foot
Depth
372 mm
Cooking Cavity Dimensions
Width
314mm
Height
202 mm
Depth
312 mm
Turntable diameter
295 mm
Control Complement
Illuminated timer (30 minutes)
Microwave Power for Variable Cooking
Repetition Rate;
HIGH .............................................  Full power throughout the cooking time
MEDIUM HIGH ............................................... approx. 70% of FULL Power
MEDIUM ........................................................  approx. 50% of FULL Power
MEDIUM  LOW ..............................................  approx. 30% of FULL Power
LOW ..............................................................  approx. 10% of FULL Power
Set Weight
Approx. 14 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
Page of 32
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Here you can view online or download Sharp R-216 (serv.man2) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp R-216 (serv.man2) Microwave Oven. Information contained in Sharp R-216 (serv.man2) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).