R-390AW
R-390AK
TABLE OF CONTENTS
Page
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICE TO
AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY ...................INSIDE FRONT COVER
BEFORE SERVICING ......................................................................................................INSIDE FRONT COVER
FOREWORD.....................................................................................................................INSIDE FRONT COVER
MICROWAVE MEASUREMENT PROCEDURE ...................................................................................................1
SCHEMATIC DIAGRAM ........................................................................................................................................ 2
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE .................................................................. 3
CPU UNIT CIRCUIT ..............................................................................................................................................6
PRINTED WIRING BOARD OF DISPLAY UNIT ...................................................................................................7
PARTS LIST FOR R-390AW ................................................................................................................................. 8
INFORMATION OF PARTS CHANGING FOR R-390AK ....................................................................................10
SX712R390APW/
MICROWAVE OVEN
MODELS
R-390AW
R-390AK
In the interest of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
This is a supplemental Service Manual for Models R-390AW and R-390AK. The R-390AW is quite similar to model
R-
390AK, with color changing.
And also this supplemental service manual contains update information for the R-390AK.
Use this supplemental manual together with the Base Model Service Manual (Refer No. is S5708R390APK/) for
complete operation, service information, etc..
SUPPLEMENTAL SERVICE MANUAL
SHARP CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
R-390AW
Miltiple Choice
STOP
CLEAR
POPCORN
START
MINUTE PLUS
INDEX
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M
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