Service manual

ManualsBrandsEvenflo ManualsDomestic AppliancesR-1851A

SUPPLEMENTAL

R-l

850A

R-1851A

R-l852A

SERVICE MANUAL

S98M121 R1850A

---

OVER

THE

RANGE

MICROWAVE OVENS

R-l 850A/R-1851 A/R-l 85249

Model

R-1851A

In the

interest

user-safety the oven

to be

restored

its

original condition

and only the parts identical to

those specified should be used.

This is a

supplemental

Service Manual for

Models R-l 850A/R-1851A/R-1852A.

This model is

quite

similar to the

Base

Model R-l 850 (S/M# S6804R185OXDJ

Use this supplemental

manual

togetherwith the Base Model Service Manualsforcomplete operation and service

information.

TABLE OF CONTENTS

SECTION

PAGE

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING

SERVICE

AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY.

...........

Inside Front Cover

Before Servicing

.............................................................

Inside Front Cover

Forewordand

Warning

............................................................

Warning to Service Personnel

......................................................

Microwave Measurement Procedure

...........................................................

Wiring/SchematicDiagram

...................................................................

Parts ......................................................................................

PackingandAccessories

....................................................................

SHARP ELECTRONICS CORPORATION

Service Headquarters: Sharp Plaza, Mahwah, New Jersey, 07430-2135

Summary of content (16 pages)

PAGE 1
SUPPLEMENTAL R-l 850A R-1851A R-l852A SERVICE MANUAL S98M121 R1850A ------ OVER THE RANGE MICROWAVE OVENS R-l 850A/R-1851 A/R-l 85249 R-1851A Model In the interest of user-safety the oven is to be restored to its original condition and only the parts identical to those specified should be used. This is a supplemental Service Manual for Models R-l 850A/R-1851A/R-1852A.
PAGE 2
R-1850A R-185lA R-l 852A (a) Do not operate or allow the oven to be operated with the door open. 04 Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary: (1) Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse.
PAGE 3
SERVICE MANUAL SHARC, Over The Range Microwave Ovens R-l 850A/R-1851 A/R-l 852A Foreword This manual has been prepared to provide Sharp Electronics Corporation personnel with complete operation and service information for Sharp microwave oven models R-l 850A/R-1851 AIR-1 852A It is recommended that service personnel carefully study the entire text of this manual so they will be qualified to render satisfactory customer service. Check interlock switches and the door seal carefully.
PAGE 4
WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of producing very high voltage and current. Contact with following parts may result in a severe, possibly fatal, electrical shock. (EXAMPLE) High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc.. Read the Service Manual carefully and follow all instructions.
PAGE 5
R-l 85OA ;:;gs MICROWAVE MEASUREMENT After adjustment of the door, interlock and monitor switches are completed individually or collectively, a INTERLOCK SWITCH TEST and MICROWAVE LEAKAGE TEST must be performed to assure compliance with DHHS (CDRH) Performance Standards for Microwave Ovens. Interlock Switch Test Make sure that the door sensing switch, secondary interlock switch and monitor switch are operating properly by checking with an ohmmeter.
PAGE 6
R-l 850A R-l85lA R-1852A A BJ n-m n-w n Gz n-la LHM KUMS C 1 I Dl E tlOLoyy NOl133ANO3 =-@zG 378VJNWlL AMO ---I I i F G H' I- MOLOW tl3dVWCl
PAGE 7
R-l 85OA R-1851A R-l 852A 31 )I 1 I 2 3 4 5 5 6
PAGE 8
PARTS LIST Contact your nearest SHARP Parts Distributor to order. For location of SHARP Parts Distributor, Please call Toll-Free; 1-800-BE-SHARP “ Q ” MARK - Spare [ REF NO. PART NO. r * t * *A section. parts delivery DESCRIPTION /§) ELECTRICAL l- 1 FH-DZBOlOMRYO M H.V. Rectifier l- 2 RC-QZBOllMREO M H.V.
PAGE 9
REF NO. PART NO.
PAGE 10
REF NO. PART NO. DESCRIPTION )§I CONTROL R64 VRN-BlZEK362F J R70-74 VRD-B12EF332J R75 VRD-BlZEFlO4J R76-82 Q’TY CODE 1 PANEL PARTS Resistor 3.61dl 1/4W 1 AA J Resistor 3.31d2 1/4w 5 AA J Resistor 1ooldz 1/4w 1 AA VRD-B12EF332J J Resistor 3.
PAGE 11
REF NO. PART NO. DESCRIPTION I§1 OVEN - -.
PAGE 12
REF NO. PART NO.
PAGE 13
A IA B IC C t ID D c E E F IF 3 L 1 E G It Ii I 1 2 4 3 11 5 6
PAGE 14
R-l 850A Fb1851A R-l 852A 1 I 3 I 3 4 5 6 Control Panel Assembly B C L , IE ‘1 / I I I I I I I I I I I \ I I I I I I I I I I F L / / / / / lc t 1 2 __-l 3 4 12 5 6
PAGE 15
r 1 I I 2 3 I 4 5 6 Miscellaneous A I’ I I I _I I I I I B l I I l I ---------_________ --I C -1 Packing and Accessories D OPERATION MANUAL E F \.
PAGE 16
SHARF? ‘980 SHARP CORP. (9M2.70E) Printed in U.S.A.