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14
BEFORE
TAKING
YOTIR
TI]NER.PREAMPLIFIER
IN
FOR SERVICING....
Finit
check
to
€nsure
that
allother
componentsare proporly
connected
to this unlt
and are operating
normally,
Then.heck
the fottowing
irems,
SYMPTOM
CAUSE
REMEDY
o
Power does
not
come on when
the
POWEB
switch
oPower cord nol complerely
plugoed in,
o
P
ug in comp ete
y.
oConsult vour authorized
se
ice deaier
oSELECTOB, TAPE MONITOF
or
SPEAKEBS/OUTPUT
witchesare
in
the
wrong position,
oNominal
speaker impedance is
less
rhan
4
ohms and
protstion
cir.uit
on the power
amplifier
is
operating,
oSpeaker
leads
or
plug oot comple.tely
plloqed
in.
ospeaker
{+) and
(
)
leadsarerouchins.
oLelt
and
riqht
channels arc
olt
of
balance,
OPLa.e
swltches in the proper
posirion.
otlse
speakers
with
nominal
impedance
of
4 ohrns or above.
oAdiust
OUTPUT LEVEL
conrroh
oTurntable sround wire not
attached.
oTurntable outpur
cod
tooclose to
power
cod,
oPluos
not complelely
pluqged
in.
oantenna not
connected
properly or not
ser in
the
proper
diroction.
oConnect
ground
wire to
the GND
termjnal.
oConnect
the antenna
properly
or set in the
proper direction.
Continuous
hisinq
in between
statjons.
(FM)
More
noise
on sterco
tban monaural. (Ftul
High frequency
whistling
solnd
{louder
at
niaht)
(aM)
lnierference
caused
by
amateur radio siqnals.
Oifficulty
in
listening
to
the
station b&ause
it
is
weak and covered
by
noise.
c)
d)
s)
h)
oNoise from electrical
appliances (ftourescent tights.
TV,
motors,
o
UnfavoEble
listening
location
or
probtem
at
the
radio
station,
oAuro isnition
noise
oNormal
noise on
the
FM band
oThis
is
due
to the
f6cr
ihat ir
requires more
siqnatstrength
to
secure
better
srereo broadcast than monaural_
oNoise from electrical
appliance
(fluorescenr
tishts,
TV,
morors,
oNoise from
TV
or
a
beat sound
caused
by jnterference of other
radio
nations.
olnterference
noise
by
high
or low
harmonics
from
amateur radio
@,io'"rion,lE
being
transmitred to the turntijble.
oBemove
as
faras
possible
from the
noie
source or
eliminate
the appliances,
oDiflicult
to correct.
1.
Change
antenna
direction.
2.
Move
ourdoorantenna
as
fars
posibte from the
3.
Substitule co6xial.able
for3O0
ohms
flat twin
led.
{FtV)
4,
Oifficult
to
corecl
withour eliminatino
sourceof
noise.
oT!rn
the
tvlUTlNG/MODE
swirch
to ON/AUTO,
and
this
noise should
not
be heard.
ol.
Turn the MUTING/MOOE
switch
to
the
OFF/MONo
2.
Installoutdoor
FM antenna.
o1.
lnstalloutdoor
antenna and attach
a
qood ground.
2.
Difficulr
to correct without eliminating
the
sour.e
of
2.
Difficutt
ro
comptetetv
do awav
with
becalse
irt
a
problem
with
the
AM from
oi
broadcasting.
oDis.uss
with
the
amateur
radio
operators.oncerned.
o(F[,4) Install outdoor
F\4 antenna.
(AM)
1
.
Chanse the
orientation of the
bar
antenna.
2, Put up
an
external AM
antenna.
ffi
It h
also
helpful to put
an
insul6lor
under
theturntable,
ONo stereo
effect
and
poor
bss
oNo
sound
for
3-5
seconds
after pow€r
is
switched on.
oStereo indicator
not
ljqhting
on stereo broadcasts.
oVol!me
level
differen.e
between
toner
and records.
oToo
much power apDiied
to
soeakers.
o
Not properly tuned
in.
o
nadio
s;gnals
too
strong.
o RadiosiSnals
too
weak.
oPluos
{+) and
(
)
connections are reve6ed.
oMuting
circuit
is
operating
to eliminare
the popptng
nois
when
poh€r
is
turned
on.
oMUTING/MODE switch
is
in the
OFF/MONO position-
o Rec6iver
signal
strenght and
160rd
levelare
different,
oAdjust
the
ATTENUATOB
contrcl.
o
lnstallan
attenlator
between
theantenna
and the antenna
olnstall
outdoor
antenna
oCorret
the
pluOs
connetions.
oThis
is
not
a
rnalfunction.
o
lnsl8lloltdoor
FM anlenna.
oPlace the
MUTING/MODE switch in
the
ON/AUTO
olt
is
not
always possible
to
remedy this
comptetely.
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