Yamaha PX-2 PX-2 OWNERS MANUAL - Page 13

Trouble, Shooting

Page 13 highlights

PX - 2 TROUBLE SHOOTING If your PX-2 ceases to function normally, check the following trouble shooting list. Only if this fails to restore normal operation should you contact your local YAMAHA dealer or service representative,. Fault Power does not turn on when POWER switch is depressed. Balance (zero) cannot be obtained after changing cartridge. REPEAT play cannot be effected. No sound is heard, or sound is too faint although the stylus descends on the disc surface. The body of the cartridge catches on the disc surface. Unpleasant, distorted reproduced sound, with clicking or crackling sounds. High frequency reproduction is par ticularly affected. Unpleasant reproduced sounds with howling (droning) noise. Inclusion of humming noise during disc play. Cause Power cord not completely inserted into wall AC outlet, or amplifier's spare power supply socket. Cartridge is either too heavy, or too light. PLAY has been started manually. Has been manually operated during AUTO-PLAY. Defective contact of head shell connector. Amplifier's FUNCTION switch is not positioned to PHONO. Amplifier's volume is turned down. Insufficient contact of turntable output cord. Too heavy cartridge stylus tracking force. Inadequate tonearm height. Turntable is slanted and not properly leveled. Dust accumulating on the stylus tip. Stylus tip is worn down. The disc itself is damaged or is dirty. Stylus tracking force is either too light or too heavy. Amplifier's treble response has been overemphasized. Turntable is installed too close to the speaker system, or resonance has been induced by vibrations because placement of turntable is unstable. Ground wire of turntable not connected to amplifier's GND terminal. Defective contact of head shell connector. Cure Re-insert cord into wall AC outlet, or amplifier's spare power supply socket. The PX-2 handles cartridges in the weight range of 5g -- 11g: the sub-weights are not needed. When a cartridge of over 11g is to be used, fit on the sub-weights and perform readjustment. First depress PLAY/DISC SIZE button and then depress REPEAT button. Attach head shell to the tonearm properly. Set FUNCTION properly to PHONO. Turn up the volume to an adequate level. Check and correct connector terminals between amplifier and rear panel. Readjust tracking force to optimum. Adjust to proper tonearm height. Correct by leveling turntable properly. Clean stylus tip using special stylus cleaning brush. Replace the stylus. Replace with a new disc. Readjust the tracking force for the cartridge to the recommended value. Turn the treble control back to the flat position. Move turntable to a stabler place, or install it farther away from the speaker. (Installation in a corner of a room should be avoided in particular.) Connect ground wire to GND terminal. (In some cases, it is better not to ground it.) Fit the head shell onto the tonearm correctly. 12

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PX
-
2
TROUBLE
SHOOTING
If
your
PX-2
ceases
to
function
normally,
check
the
following
trouble
shooting
list.
Only
if
this
fails
to
restore
normal
operation
should
you
contact
your
local
YAMAHA
dealer
or
service
rep-
resentative,.
Fault
Cause
Cure
Power
does
not
turn
on
when
POWER
switch
is
depressed.
Power
cord
not
completely
inserted
into
wall
AC
outlet,
or
amplifier's
spare
power
supply
socket.
Re-insert
cord
into
wall
AC
outlet,
or
amplifier's
spare
power
supply
socket.
Balance
(zero)
cannot
be
obtained
after
changing
cartridge.
Cartridge
is
either
too
heavy,
or
too
light.
The
PX-2
handles
cartridges
in
the
weight
range
of
5g
--
11g:
the
sub
-weights
are
not
needed.
When
a
cartridge
of
over
11g
is
to
be
used,
fit
on
the
sub
-weights
and
perform
readjustment.
REPEAT
play
cannot
be
effected.
PLAY
has
been
started
manually.
Has
been
manually
operated
during
AUTO
-PLAY.
First
depress
PLAY/DISC
SIZE
button
and
then
depress
REPEAT
button.
No
sound
is
heard,
or
sound
is
too
faint
although
the
stylus
descends
on
the
disc
surface.
Defective
contact
of
head
shell
connector.
Amplifier's
FUNCTION
switch
is
not
positioned
to
PHONO.
Amplifier's
volume
is
turned
down.
Insufficient
contact
of
turntable
output
cord.
Attach
head
shell
to
the
tonearm
properly.
Set
FUNCTION
properly
to
PHONO.
Turn
up
the
volume
to
an
adequate
level.
Check
and
correct
connector
terminals
between
amplifier
and
rear
panel
.
The
body
of
the
cartridge
catches
on
the
disc
surface.
Too
heavy
cartridge
stylus
tracking
force.
Inadequate
tonearm
height.
Readjust
tracking
force
to
optimum.
Adjust
to
proper
tonearm
height.
Unpleasant,
distorted
reproduced
sound,
with
clicking
or
crackling
sounds.
High
frequency
reproduction
is
par
ticularly
affected.
Turntable
is
slanted
and
not
properly
leveled.
Dust
accumulating
on
the
stylus
tip.
Stylus
tip
is
worn
down.
The
disc
itself
is
damaged
or
is
dirty.
Stylus
tracking
force
is
either
too
light
or
too
heavy.
Amplifier's
treble
response
has
been
overemphasized.
Correct
by
leveling
turntable
properly.
Clean
stylus
tip
using
special
stylus
cleaning
brush.
Replace
the
stylus.
Replace
with
a
new
disc.
Readjust
the
tracking
force
for
the
cartridge
to
the
recom-
mended
value.
Turn
the
treble
control
back
to
the
flat
position.
Unpleasant
reproduced
sounds
with
howling
(droning)
noise.
Turntable
is
installed
too
close
to
the
speaker
system,
or
resonance
has
been
induced
by
vibrations
because
place-
ment
of
turntable
is
unstable.
Move
turntable
to
a
stabler
place,
or
install
it
farther
away
from
the
speaker.
(Installation
in
a
corner
of
a
room
should
be
avoided
in
particular.)
Inclusion
of
humming
noise
during
disc
play.
Ground
wire
of
turntable
not
connected
to
ampl
ifier's
GND
terminal.
Defective
contact
of
head
shell
connector.
Connect
ground
wire
to
GND
terminal.
(In
some
cases,
it
is
better
not
to
ground
it.)
Fit
the
head
shell
onto
the
tonearm
correctly.
12