Seeburg LS 1 - Trip Relay Contacts

SERVICE MAI{UAL
50. 22
Page 1
SOLID STATE CONTROL CENTER, Typr SCCT
SOLID
SIATE
AUiO SP€eO
Tr9. SASI
r50v. zEtER
{ ci!to!
)
GENERAL
Thc
Solid Smtc Cootrol Center is a
power
disaibutioo
ccntcr aod a
iuoctioo
uoit for con-
trol circuits of the completc
phooograph, Tbc
coltrol ccotcr includes
a power supply, a play
coocol asseobly, write-ir, rcad-out
aod sensing
circuits.
Thc poset supPly converts
120 volts
a.c. ioto the various voltages oeeded
to operate
tbe individual chassis.
Tbe play control
as-
scobly
starts thc scanoilg operatioo
of the
rechaoism
cartiate
and thcn stoPs tbe catliage
after two cooplcte cycles.
Thc
write'io circuit
provides the necess6ty
cutent fo!
makiag
a
selectioo.
The
rcad-out and seosing
circuits
govide
the oecessary
voltage
fot stoppiog
the
mecbaoiso
at the sel€cted
tecord
duriog a scao
oPeratioo.
Figurc 1. Solid
State Cootrol Ccotcr, Type SCC7.
POWER YRAI{SFORMER
{
TSrOr
)
27V ZEN€R DIODE
I CR3lO4 )
All
conncctions bctwcca thc
SCCT
and othcr
uaits vithio the phonogtaph
cEbinet arc made
with plugs
that arc
kcycd by color
aod/or
ouober of c(mtacts
so thcy caooot
be
iocorrectly
connected,
ADJUSTMETTS
a.
Trip Relay Contacte
(refer
to
Figure 2)
l. Adiust the atoature es rcqufucd to obtaio
a
l/16 ioch clcarancc bctwcea
the armature
aod the armature
back stop wheo the
relay
is
eaergized.
2. Foro the
short blades as
required
to ob-
taio
a cootact gap of 0.020
inch.
At
tttrft