Pioneer tuning fork Service Manual page 6

2.2 S w i t c h e s Classified by F u n c t i o n s
a) Rotary Switch
Rotary switch is capable of selecting, making, or break­
ing an electric circuit actuated by a rotational torque ap­
plied to its shaft. Most switches of this type are for selecting
signals and some for switching power. Here we will dis­
4
cuss signal selectors. This switch is capable of switching
multiple circuits when switch wafers are assembled in mul­
tiple gangs. Generally each wafer can select 11 terminals
which are apart from each other by 30°. This switch usually
has to step over several unnecessary terminals before reach­
ing a desired point. The contact points are of sliding type
and have an ability of self cleaning. With these features,
this switch is used for selecting functions, modes, speak­
ers, etc. P h o t o 2 shows typical rotary switches.
2 T Y P I C A L
Photo Rotary Switches