Ten Cent Coin Registration Schematic; Twenty-Five Cent Coin Registration Schematic; Coin Selector Mechanism . 1 - Wurlitzer 3020 Service Instructions And Parts Catalog

Section I
General Desc;ription
Service Instructions
TO SELECTOR SWITCHES
10¢
COIN SWITCH
COIN
RELAY
COIL
TO SEL. PLATE
TO SEL. BUTTON RELAY
ACCUM. SWITCH
TO
117
v.
TO MOTOR
TO
2.4
v.
I
disc). If a quarter is insert·
ed, six
24
volt A.C. pulses
are sent to the accumulator
coil moving the ratchet
wheel six teeth. (See Figure
3.) If a dime
is inserted,
three
24
volt A.C. pulses
are sent moving the ratchet
wheel three teeth. (See Fig·
ure 2.) If a nickel is in-
serted, two 24 volt A.C.
pulses are sent moving the
ratchet wheel two teeth.
(See Figure
1.)
After the
money is registered, the
coin gate opens through
the action of a cam con•
trolled by the motor. This
allows· the coin to drop in-
to the cash box, thereby
opening the coin switch.
Further action of the cam
is immediately in effect to
actuate the cancel lever,
canceling the ratchetwheel
one tooth. This leaves five
registrations if a quarter
has been inserted, two
registrations if a dime has
Figure 2-Ten Cent Coin Registration Schematic
2
TO SEL . BUTTON RELAY
TO SELECTOR SWITCH£~
ACCUM. SWITCH
8
A /;: :•\
\\
\
I I
'------
__
_;
CONTACT
PLATE
· COIN
REGISTER
2 5¢
COIN SWITCH
COIN
RELAY
COIL
INTERLOCK
~-o-'l~:KI
MOTOR __
~w-7-~~~-·T_O
__ M __
O•T~OR
ISOL.
REG.~~i--~..J
SEL . REG .
TO SEL. PLATE
TO
117 V.
TO
24
v.
Figure 3-Twenty-Five Cent Coin Regipration Schematic
I
••
been inserted, or one regis-
tration if a nickel has been
inserted. Near the end of
the cycle the release switch
rotates to its . open segment,
releasing the coin relay.
The full q.cle switch keeps
the-'
moio~ 1
running until
the open segment is reach-
ed, thus stopping the mo-
tor. When th:e motoc stops,
the contact arm is
Ill
rest
on contacts H and F of the
contact disc. (See Figure
4.)
After a nickel; dime or
quarter has been registered
on the ratchet wheel, the
accumulator switch is clos-
ed. ·The contact arm, at
rest on disc contacts H and
F, completes the circuit
through the .accumulator
switch to energize the se-
lection button relay coiL
This relay remains ener-
gized until released by the
release switch, at the time
it · reaches the open seg-
ment. The wallbox is now
ready for a selection.