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Other pick up ca ridges with RETMA standad
With lhis record playeÍ is à smêll bêg conlaining:
à mounring plále, screws, nuts, distancê pieces
áncl a jis. Ïhe jig is tó check that thê slylus is in
lhe coÍect posilion This is achieved by moun!
ing lhê cêrlíidge with distênce pieces ánd
screws lo lhe pate in such a wáy lhat when the
plale and canridge êÍe slid into the slots ol the
I g, lhè sly us is e,àcl y in thê V shèped cul out
ol rhe j,g (Fig 61. The sdês oí rhe càrrÍidge
should be pàralel to rhe lines on the uPpêÍsde
When this ádiustment is coÍrê.I push the termi
nêls oí the coLoured wnes on the tags ol lhe car
lÍidge. The coding is as Iolows:
Red
Íight hand channel
While
lelt hand chánnel
Green
right+afd retuín
Blue
lelt hand return
Sllde pale and canridge into lhe headshel Gig
3, B).
Reolácement oI rhe srylus unir
Puit the support with the pick-up cêrtridge out ol
the headshell (fig. 3, A). Take the plare wilh caÍ
l dge, upside down, in lhe lèlt hand and lakê the
slyus unil wilh lhumb and lore finger oÍ the righl
hand Glg. 7). Now pul il careluly straighl out ól
the cárlidge wilhoutjêrking. Slide the new stylus
L n i r s k à L g h r è n d w r h o l l j e r i r n g n ' o l h e c ê f t r i d g e
.nd sde the suppoÍl w rh cartÍdge bècl inlo ihe
Slylus ]oÍce s lhe veÍlically dnected downward
íorce wirh whlch the slylus Íêsls in the record
qÍoove. h is essential lhal the stylus torce Íecom
;êided
by the manulacluÍêÍ is applied. Forces
higher as wêll as íorces lower lhan indicaled bv
the mênuÍàclurer willeád lo inÍerior Íêproduclion
ánd even groove delormalion. Slyus lorce is set
by means ol the slide wêighl on lhe pick up arm
állêr this is balanced with the counlerweiqhl
Si.lè thtust cmpehe
an
Side thrusl ls the lorce rhê1 causes the Prck up
àÍm lo móve lo the cenhe oí lhe Íecord Ás a
consequencê oí this the slyls tiP is pressed
aqanstlhê inneí sidê oí the groove which Íesuls
i;inlerior Íacking ot the ouler groóve wali This
resulls in more dislorsion.
To prêvênt this dislorsron lhe Plàyêr is equiPPêd
^ n "n cdiu<ràblê "ioe ll;us, .orpen
a'or
thè bpe ptàtè r'siuàtcd und't the tutnt-ble
which applies á presêt lorce to the aÍm counleF
êcring this phênomenon.
Side lhrusl is pÍoporliona 10 the styus lorce and
dependent on the type ol the stylus used GpheÍi_
Photo eletíonic auta-stop
The pholo elecÍonic aulo slop is actuated by the
íáte ol inlerceplion oï a lighl beam stÍiking a pho_
lo-sênsilive cadmiLm sulphicle cel. When this
rále êxceeds à ceÍlain value, a bi-sláble multivi_
brátor ls tÍlggered which cuts off the molor supp_
!y votage. Thls swilch oí is peíormed withoul
ány mechanicàL íor.e, hence
'thumping' ánd
other undesnêd eíecls 6ànnot occur. anolher
advanrage is Ihêt the pick-up may be pêcêd
over any part oJ the recoÍded suíêce wilholt lhe
íisk ol pÍêmàture switch-oí.
Elechonic speed conhol
The molor speed oÍ this record plêyer ls con_
linuously conÍolled and kept conslanl by solid
sláte circuils ln combination wilh a lacho genèr
aloÍ which ls dnêcly couped to the molor shêlt
ln thls way ê high grade oi precision ànd grêal
rèliêbility is áchieved. The íully slabillzed cncuils
êÍe not innLencêd by fiuctuatiofs ol thê malns
vohage and êíe unaÍfecled by chêngês in malns
The turntabje ánd the plck-uP árm aÍe mounled
on ê sub chàssis, which is dànped, sprong sus
pended ÍÍom the rigidy mounted maln chassis.
This conslruclion absoÍbs mechanicál shocks
ênd external vibralions. ll also alows more ac_
curale cueing ês the movements oí lhê arm-lllt
lever do not caLse àny dlsplácemènl ol lhe sLb
Speed adjustment Ènge
Rumble {DlN 8)
< - 6 2 d B
0
4 g l
5
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