Bush SRP.31 User manual

Issued by the Technical Publications Department of
BUSHRADIOLIMITED
KEW WORKS,MORTLAKEROAD,KEW,RICHMOND,SURREY
Telephone:PROspect 8271/4
A COMPANY WITHIN
THE RANKORGANISATION
AP63871/2/8/60/5
TWP Services Ltd.Printed in England
SRP.31
OPERATING INSTRUCTIONS

MAINS LEAD
(SEEWARNING
NOTE UNDER 'MAINS
SUPPLY')
STYLUS
TURNOVER LEVER
MANUAL/AUTO
SWITCH
Fig. 1 Record player with lid open
INSTALLING THE INSTRUMENT
IMPORTANT
The record player is springmounted to eliminatefeedbackfrom
the loudspeakers. In transit, the motor baseboard is heldsecurely
against the cabinet by means ofa rubber buffer placed onthe turn-
tablespindle. The rubber buffer should be removedfrom the
spindle and placed inthe stowageposition inthelid (seeFig. 1)
before using the record player.
MAINSSUPPLY
WARNING
The mainslead(Fig. 1) must be connected toa three-pin plug in
ttae following manner:—
Red lead to live terminal
Black lead to neutralterminal
Green lead to earthterminal
Under no circumstancesshould the greenlead be connected to
any terminal otherthan the earthterminal.
If the mains socket inuseisnotofthe three-pin type, the dealer
or a qualified electrician should be consulted. Connections made by
an unskilled person may prove fatal.
I

The four-speedrecordplayer is designed to operate on a.c.
mainsonly of 200-250 volts, 50 cycles per second.Mains frequen-
cies of40or60 cycles per second maybe used ifthe appropriate
drive pulley is substituted inthe record player.
LOUVRED VENTILATION PANEL
REMOVED TO SHOW MAINS-VOLTAGE
ADJUSTMENT PLUG
2H6/A
Fig. 2 Mains-voltage adjustment
The mains-voltageadjustmentplug (Fig. 2)issettothe 225/
250 tap, when the record player leaves the factory. Should an
alteration tothe setting ofthe voltage-adjustmentplug be neces-
sary—disconnect the instrument completelyfrom the mainssupply
and remove the louvredventilationplate from the insidefrontedge
of the turntablecompartment(Fig. 2).
Place the plug inthe 200/225 tapfor mainsvoltagesbetween
200 and 225.
Place the plug inthe 225/250 tapfor mainsvoltagesbetween
225 and 250.
Replace the louvredventilationplate.
OPERATING THE INSTRUMENT
Place the recordplayer ona level, firm surface.Ensurethat the
pick-up plug(Fig. 1)is inserted inthe "Amp.Input"socket.
Switch onby turning the Volume—On/Off control(Fig. 3)ina
clockwisedirection until a click is heard andthe pilotlamp is
illuminated.
The Garrard OperatingInstructionssuppliedwith the record
playertells youhowto play the records.Particular care should
be taken tosetthe stylusturnoverknob andthe speed-adjuster
tothe speedshown onthe recordlabel(for the 16 r.p.m. records
use the 33-45stylussetting).After use when the pick-up armhas
returned toits rest it should be locked in position by turning the
pick-uplock(theblackknobunder the pick-up arm rest) tothe left.
The Volume,Bass and Treblecontrols(Fig. 3) should be adjusted
in accordance withindividualpreference. The controls,which are
edge-operated, are calibratedfrom 1 to9 to assist in subsequent
settings.
When the record player isnotin use, switch off by turning the
Volume—On/Off control ina counter-clockwisedirectionuntil a
click is heardagain.Return the speed-controlknob tothe neutral
position.
Records maybe transferred onto tape by connecting a tape
recorder tothe sockets,marked 'Output to Tape Recorder' (see
Fig. 2) whichprovide a low - impedanceoutput. The connecting
leads canbe takenthrough the slot inthe back ofthe recordplayer
andfixedinthe springclip(see Fig. 1).The OperatingInstructions
for the taperecordershouldgiveinformation onthe method
of recording.Duringrecording, the Volume,Bass and Treble
controls operatemanually andcanbe used in conjunctionwith
any recording controls inthe tape recorder.
,1 ' *
1
PILOT LAMP
Fig. 3 Amplifier controls
2'47
"» I I 181 OI'UOM< RECORDINGS
Stereophonic records maybe played on this record player ifthe
following additionalitems are obtainedfromyourBush dealer:—
(1) A stereophonicpick-up head, type GCS10 (MPM5mould-
ing).
(2)A suitableaudioamplifier and loudspeaker.
(3) A length of co-axiallead.
IMPORTANT
Replace the existing pick-up head with the type GCS10. Never
play a stereophonicrecordingwith a standard pick-upsincethis
will seriously damage the record. A standard fine-groove recording
maybe played with the stereophonicpick-up.
Couple the "StereoOutput"socket (Fig. 1)tothe inputsocket
ofthe second amplifier.
The Bush dealer responsible for installing the additionalequip-
ment will assist in positioning thetwo loudspeakers inthe most
advantageous position.
Model SRP.31 maybe used asthe second amplifier forthe
stereo outputsignalderivedfrom another record player. In this
instance the stereo output from the other player should be coupled
tothe "Amp. Input" socket ofthe Model SRP.31.

GENERAL. INFORMATION
VALVES
MULLARDTYPE
ECL83 (2) push-pullaudio amplifier.
METAL, RECTIFIER
STC Type C2D.
POWER CONSUMPTION
40 watts.
PILOT LAMP
6.5-volt, 0.3 ampererating,M.E.S. capfitting.
FUSE LAMP
6.0-volt, 0.5 ampererating, M.E.S. capfitting.
NOTEReplacement of valves,metal rectifier, pilotlamp and fuse
lampshould be carried out only by yourBushdealer.
REPLACEMENT OF STYLUS
A modernlightweightpick-up isa sensitiveinstrument and must
be handledverycarefully to avoid damage.
A sapphirestylus hasa long life if used carefully. Onlyrecords
in goodconditionwithclean,dust-freesurfacesshould be used
since wornsurfaces may damage the stylus. A worn or damaged
stylus causesharshreproduction and increasedsurfacenoise and
should be replaced immediately.
STYLUS
STYLUS SHANK
J
I
I
ACTUATOR
CARTRIDGE MOULDING
The recordplayeruses a type GC8 pick-up,with two sapphire
styluses.
To replace a stylus first remove the pick-uphead*.Then
insert the blade ofa penknife under the middle ofthe stylusshank
(see Fig. 4)and gentlyeasethisaway from the cartridgemoulding.
Carefully press thenew stylusintoposition so that the back of
the stylus shank isfirminits socket andthe frontclasps the
actuator. Replacement styluses fortheGC8 pick-up areas follows :-
Standard (78 r.p.m.)—stylus GC8-3 (colourcodegreen).
Long playing (16, 33,45 r.p.m.)—stylus GC8-1 (colourcode
red).
cf
PICK-UP HEAD
0
fc
PICK-UP
(FREE)
H£
HEAD CLAMP
(CLAMPED)
— /
/PICK-UP ARM
2I3IA
Fig. 4 Detachable pick-up head
Fig. 5 Pick-up head clamp
*When removing and replacing the pick-uphead first turn the
pick-up headclamp (seeFig. 5) upwards to release the head.
When the head has beenreplaced the knob is turneddownwards
again to clamp it.
GUARANTEE
IMPORTANT NOTES
ABOUT THE GUARANTEE
1. The conditions ofthe Guarantee are quoted onthe
detachablesheet,page 8.
2.The Guarantee is automatically effective from the
time youbuythe instrument. Youdonot have to
return the form.
3. Makesure the dealer has completed the section
marked "DEALER PLEASE COMPLETE THIS
SECTION" when the instrument is installed.
4. Keep the Guaranteeform ina safe place. Ifyou
needserviceunder the Guarantee youmaybe asked
to return the form tous.

GUARANTEE
The instrumentserialnumber as shown on Page 8 is herebyguaranteed
for a period of twelvecalendarmonthsfrom the date of purchase or
hire,subject tothe following conditions and exceptions:—
1. Thatduring the currency ofthe Guarantee any components ofthe
instrument (exceptpilotlamps and valves),whichhave inthe
Company'sjudgmentproved tobe faulty or defective in manu-
facture, will be exchanged free of charge, see Clause 3.A separate
Guarantee for valves is given overleaf.
2. That the servicing ofthe instrument will be carried outatthe place
mostsuitable and convenient to BUSHRADIOLimited.
3. That all labourinvolved in servicing,packing,etc., andall carriage
costs will be chargeable tothe purchaser or hirer.
4. ThatBUSHRADIO Limited will not acceptresponsibility for
damagecaused by:—
(a) Misuse, wilful or accidentaldamage.
(b) The non-observance ofthe instructions and information
contained inthe operatinginstructionsbooklet.
5. That the instrument is purchased or hirednew, andatthe
Company's full published retailselling or HirePurchaseprice,
from or through an appointedBUSHDealer. Inthe case ofan
instrument on HirePurchase,thisGuarantee will not operate
unless all instalments are paid upto date.
6. That BUSHRADIOLimitedreserve the right to change, at their
' discretion, any Instrument or part ofan Instrumentsent for service
for a like article of approximately the samedate of manufacture.
The Guarantee shall notbe affected thereby.
7. That thisGuaranteeshallbecomeinvalid inthe event ofany
unauthorisedalterationbeingmade tothe instrument for which
it is issued, orifany non-standardparts be substituted.
8. That any instrument or component part returned to BUSH RADIO
Limited under the terms of thisGuaranteeshall be sentcarriage
paid.
9. That thisGuaranteeapplies to instrumentspurchased and used
in Great Britain and NorthernIreland.
i
10. That the followinginstructions asto procedure are compliedwith.
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