R-480J
TABLE OF CONTENTS
Page
CAUTION, MICROWAVE RADIATION............................................................................................................. 1
WARNING.......................................................................................................................................................... 1
PRODUCT SPECIFICATIONS ......................................................................................................................... 2
GENERAL INFORMATION................................................................................................................................ 2
APPEARANCE VIEW ....................................................................................................................................... 3
OPERATION SEQUENCE................................................................................................................................ 4
FUNCTION OF IMPORTANT COMPONENTS ................................................................................................ 6
SERVICING ...................................................................................................................................................... 7
TEST PROCEDURE......................................................................................................................................... 9
TOUCH CONTROL PANEL............................................................................................................................. 16
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE........................................................... 22
MICROWAVE MEASUREMENT .................................................................................................................... 28
WIRING DIAGRAM ......................................................................................................................................... 29
PICTORIAL DIAGRAM ................................................................................................................................... 30
POWER UNIT CIRCUIT .................................................................................................................................. 31
CPU UNIT CIRCUIT ........................................................................................................................................ 32
PRINTED WIRING BOARD .............................................................................................................................33
PARTS LIST ................................................................................................................................................... 34
S8406R480JPJ/

MICROWAVE OVEN

MODEL R-480J

In interests of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.

SHARP CORPORATION

SERVICE MANUAL