Seeburg LS 1 - Timing Relay Circuit

SE RVIC E IV ANUAL
t0- 22
Page
ll
SELECT-O-MATIC PHONOGRApH, Model
LSI
circuit
to the
shift soleooid
is coopleted
ftoo
the 24-
volt supply
in the
SCC7, through
the
coio switch
as'
seobly,
into the UDPU6,
through
the
juoper
plug
P4200 and
the
9U1
contacts,
through
the fuse and the
JUl1
cootacts
to
the shift solenoid
and the
subtract
soleooid,
The
subtract solenoid
will Dot
enelgize be-
cause
the
3Sl
contacts
in the
ground
side
of the sub-
tract soleooid
have been
opeoed by operation of
the
priciog treadle bar.
A
ground
circuit to
the shift
solenoid
is completed through
the 8U2 cootacts
which
are
now
closed, the
3S2
contacts, the 2S1 contacts
and either
the 1S1 or 4S1 contacts depeoding
on
the
selectioo made.
Vhen
the shift solenoid
eoetgizes, it closes
the
2Ul
contacts which cooplete a
gtouod circuit to the
sub-
tract
solenoid ererg'rzing it, The shift soleooid
also
alters the approach of the subtract
pawl
so it is in
a
position to
subtract
eoough credits for ao
albuo
se le ction.
c.
Tirning Relay
Circuit
The
timing relay controls
the sequeoce
of events
by
de-energiziog
the subtlact,
shift and latch solenoids
at the
appropriate time. The timing
relay also serves
to
protect
the custooer or
the phonograph if
(1)
selec-
tioos ale artempted with iosufficient
credit c
while
I
UDP
rsosrl? ]
I
lscc
NOTE:
All
contacts shown
wtth
h.chanls6
at
*l
I
l
I
REST POSITION,
ts
r
n v
r
c r-sw t
tc H
l s s
r u
g
Lv
E
E
6
T
Figue
5.
Simplified
Play Coorol
and
Couater Assembly
Circuit.
I
I