2
SR-GA421/SR-GA281/SR-GA721
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by
in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should
be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without
permission of manufacturer.
IMPORTANT SAFETY NOTICE
CONTENTS
1.SCHEMATIC DIAGRAM & WIRING DIAGRAM .....................................................................3-4
2.FUNCTION OF CENTER THERMOSTAT AND THERMAL FUSE .........................................
5-6
3.TROUBLE SHOOTING GUIDE ...............................................................................................7-8
4.TESTING PROCEDURE .........................................................................................................9-10
5.EXPLODED VIEW & PACKING VIEW (SR-GA421/SR-GA281) ............................................11-12
6.REPLACEMENT OF PARTS LIST & PACKING LIST
(SR-GA421/SR-GA281) ....................13-14
7.EXPLODED VIEW & PACKING VIEW (SR-GA721) ..............................................................15-16
8.REPLACEMENT OF PARTS LIST & PACKING LIST
(SR-GA721) .......................................17-18
Page