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.
To Next Page
Loading...
