ELECTRICAL CIRCUIT DIAGRAM
9/12
S
1
C
om
m
ut
a
to
r
S
2
R
at
e
se
tt
in
g
b
ut
to
n
B
T
H
U
pp
er
r
es
is
ta
n
ce
T
H
L
ow
er
r
es
is
ta
n
ce
M
1
M
ot
or
M
2
F
an
S1 : Commutator
S2 : Rate Setting Button
RA : Lower Resistance
RU : Upper Resistance
M1 : Motor
M2 : Fan
d : Diode