Pioneer tuning fork Service Manual page 10

Most of the switches have one or two contact points and
circuits because of their structure. A n additional mecha- /
g) Microswitch
This is cased in a small box, is operated at a high speed
by a pressure to a spring and allows a large current. This
requires an additional mechanism to be operated because
of its difficulty in manual operation. This is used for
switching power and selecting signal channels. Fig. 8 shows
the structure of a typical microswitch.
This has one or two contacts and mostly one or two cir­
cuits. Like the plate spring switch the number of circuits
is limited. The microswitch which has an actuator has both
features of plate-spring switch and snap switch.
8
nism is required to operate it at a high speed because it
has no such mechanism as that of snap switch.
Photo 7 Plate Spring Switches
Pin
Photo 8 Microswitches
Actuator
Springs
Terminals
Case
Fig. 8 Microswitch