r
Service Manual '41 Modele
7800, 7850. 8800
and
9800
should b e remedied be�ore at
tempting
any
adjustments,
lliiCORReCT CUT-OFF ADJU!::JT,'·1E'NTS
The che.nging mechanism should
be set
in
ope.rat.ion when the
needle enters the stop groove and
has travelled to within a distance
of
1-
7 /
8
1
1
from the center of the
turntable spindle. Should adjust
:llents be necessary, refer to
(Fig.
ec)
and mak.e ad.iu:;tments
with Che adjusting
screw
(No. 1085)
until tne proper setting has been
made. Occasionally a record may
be found where the :ll.USic has been
recorded
.Pl!St
the limits set for
the cut-o�f mechanism.
I t
i s ad
visable to re.set the mechanism to
trip oft
.for
such a record.
D . Bir�DihfG
OF 'i'!i1'1•iSM.Ib"SION
hD.Ri'>I
SE.l\FT
'!'he transmission worm
shaft
(Fig.
4,
No.
1041)
may be bind-
ing.
t t:
should slide back and
forth f:reely. The steel worm
gear (Fig.
4,
No.
1071)
and the
lal'ge worm gear (Fig.
10,
No.
3054)
may :nesh too
tightly,
causing the shaft t o bind
slightly, or the flat spring
(l''ig.
4 ,
N o .
1075)
1oay be too
weak.
The spring 1oay be strength
ened by removing and reforming
the bend., taking care not to make
the bend too sharp
or
the spring
make break.
E .
BINDING OF
TRIP LEI/ER
If the trip lever in the
rear of the cabinet is binding
in
the hole through the rear panel,
it may eause pressure against the
clutch retaining yoke (Fig.
6C,
Wo.
1508)
prevent.ing the Yoke
from engaging the clutch retain
i....'1.g lever (No.
1052 ) .
'l'he trip
lever should work freely with the
rear :;:>an el :i.nstalled.
8 .
H E E D L E D O E S H O T E N T E R
RECO R I:> G R O O V E P RO P ERLY
A .
ALIGNMEl�T 01'
N
EEDL
E
WI'l'E EDGE
01"
IlECO.hD
As the turntable comes up
with a record, the needle should
contact the
record
about
3/32"
i'rom its edge. '.l.'his i s t.ne con
dition for an average
record
which will b e found to be approx
imately
9-7 /811
in
diameter. The
a�justa ble support hook (Fig.
'3A,
No.
1846)
or
3115
that holds the
tone
arm
in �osition a s the turn
table is being raised, may be ad
justed so that the need.le will
rest in its proper position on
the record.
B .
NEEDLE
F f..ILS
TO
.E
NT
Eil GilOOVE
I.f
the needle stays in one
position on the record anc does
�ot enter the playing groove, lt
may be caused
by
binding of the
tone arm support rod (Fig. 5f..,
No.
1121 ) .
It
is also possible
that the instrument may be
tqo
far out of level.
liliy
binding in
the tone arm support rod (No.
1121)
s
h
o
Ul
d
be traced down
and
remedied,
as th.is will
cause im
proper
reproduction
of music as
well as excessive record wear.
If the instrument
is
too fGr
out of level1
.it
should be lev
eled up so all pa rt s may func tion
properly.
A tone arm booster spring
(No. 1124) is shorm. in Fig.
3A.
This may be adjusted if necessary
to assist the movement of the
needle toward the playing grooves
23
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