Seeburg LS 1 - 2. CREDIT SYSTEM ADD CIRCUIT

t0- ?2
SERVICE MANUAL
Page
8
SELECT-O-MATIC
PHONOGRAPH, Model
LSI
plays
the record.
After
the record has
finished
play-
iog
it
is
returned to
the oagazine.
The
carriage then
resumes scanning.
Vhen
the catriage
reaches
its
original startiog
poiot for the
second
time, the car'
riage
stops. This completes
ooe
cycle of operation.
2. CREDIT SYSTEM
ADD CIRCUIT
Refer to Figute
1.
Vheo a coin
is deposited
io
the
phonograph,
the
weight of the
coin
closes the ap'
propriate coin switch.
The coin
switch in
turn, coo-
pletes dre circuit
to the
aPptoPriate
solenoid.
If
either the
quarter o! half
dollar solenoid
is
'energized,
the
5U1
contacts
of the
add'hold oagoet
vill
be
oechanically
closed.
Closing
the
5U1
cortacts
permits
capacitor
C42O6
to discharge
through
the
add-
hold oagoet,
holding
it energized
for
approxioately
80 oilliseconds,
The
add'hotd oagnet
io turn'
me'
chaoically holds
the
quarter
o.
half dollar
soleooid
in
the energized
position.
This
is done to allow
enough
ti6e for the credit
ratchet
wheel to totate
its required
distance.
The serviceoao oay
add
credits
by
holding
the ser-
vice
switch
lever
io the SCAN
position aod
then
oomentarily
operatiog
the credit
switch. Each
tioe the
credit switch
is
operated,
a circuit
is
coopleted to
the
dioe
solenoid.
B. LATCH
SOLENOID
AND CREDIT
LAMP CIRCUIT
Vhen 10d
credit is
established io
the
phoaograph, the
latch
bar
soleooid is
energized
to mechaoically
operate
the latch
bar in the electrical
selectq.
This
permits
the selection buttoos
to be held
io the &-
pressed
position, fot the proper leogth
of
tioe, wheo
a selection
is oade.
Also,
vheo
lOC credit is
estab'
lished,
the siogle ctedit
taop
is lighted to illuoinate
the
"select
Any Single" credit
lamp.
When
25f
credit
is established,
the
albue credit
lamp is lighted
to
illuoioate
the
"Select
Aoy Albuo" cred.it
laop.
Vheo
the coin soleooids
are operated
as desctibed
in patagraph
2, the credit
ratchet wheel
rotates and
closes
the
credit switch contacts.
If
enough
credit
for a siogle
selection is accuoulated
the
one-credit
switch
contacts
7U1 close completing
a ci.rcuit
to
the latch
solenoid aod
the siogle ctedit
laop'
Refer
to Figure
2, The cooplete
circuit is
as
follows:
From
the 24-volt
a.c. source
in the Solid
State Control
Center
through the
15
aopere
fuse,
the cabinet cable
assembly,
the coin switch
assembly, the
lU21
coo-
tacts, the 7Ul
contacts,
ph 2 of
14200
atd
P3402
to
both the latch solenoid
and
the single credit
lamp.
The
other side o[
the
credit
lamp is
connected
to
grouod. The latch solenoid
is coanected
to
ground
through the
lBl contacts of
the manual credit
switch.
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-risreu
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a,
!
6rq1t_r1u1s
_
st REST POSITION.
l
l
l-
NoTE: All c o.tact.
shown w
tth
Z ERO
C
REDIT on
phonogEph
.nd
mechantam
Figure
2. Simplified
Latch
Solenoid and
Credit Laop Circuit.
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