Panasonic RX-DT690 - Timer Troubleshooting; Timer Operation Issues; Unit Maintenance; External Surface Cleaning

Probable
cause(s)
Suggested
Remedy
While
using
the
timer
No
timer
operation
at
the
ts
the
unit
on
(when
the
play
timer
and
recording
Turn
off
the
unit
upon
Programmed time.
timer are being used)?
About
condensation
“Condensation”
refers
to
the
droplets
of
water
which
form,
forexampie,
on
a
cold
winter’s
day
on
the
window
Panes
in
a
warm
room.
This
unit
contains a
lens
in
the
CD
section,
and
condensation
may
form
on
it
in
the
following
cases.
©
Immediately
after
the
heating
has
been
turned
on
in
the
room
Maintenance
of
external
surfaces
To
clean
this
unit,
use
a
soft,
dry
cloth.
It
the
surfaces
are
extremely
dirty,
use
a
soft
cloth
dipped
in
a
soap-and-water
solution
or
a
weak
detergent
solution.
Wring
the
cloth
well
before
wiping
the
unit.
Wipe
once
again
with
a
soft,
dry
cloth.
Never
use
alcohol,
paint
thinner,
benzine,
or
chemically
treated
cloths
to
clean
this
unit.
Such
chemicals
may
damage
the
finish
of
your
unit.
Lens care
Open
the
CD
lid
and
clean
the
lens
with
a
blower
(not
included),
If
the
lens
is
extremely
dirty,
clean
it
with
a
cotton
swab.
(not included)
Cotton swab
(SO lens
a,
g
g
Has
the
programmed
timer
indicator
(TIMER,
TIMER-REC
or
SLEEP)
lighted?
completion
of
the
settings.
Operate
again
so
that
the
display
lights
up.
©
In
a
steamy
or
very
humid
room
©
When
the
unit
is
suddenly
moved
from
a
cold
environment
to
a
warm
environment
In
cases
like
these,
the
unit
May
not
function
properly.
Tum
the
unit
on
and
wait
about
an
hour
before
attempting
any
further
operations,
Tape
head
care
To
assure
sound
quality
for
recording
and
Playback,
be
sure
to
clean
the
tape
heads
after
approximately
every
10
hours
of
use.
1.
Press
to
turn
the
unit
off.
2.
Press
to
open
the
cassette
holder.
3.
Clean
the
tape
heads,
pinch
rollers
and
the
capstan
shafts
with
4
cotton
swab
(or
a
soft,
lint-free
cloth)
slightly
moistened
with
isopropyl
alcohol.
Do
not
use
any
solution
other
than
alcohol
for
head
cleaning.
DECK 2
Pinch
roller
Pinch
roller
Pinch roller
Head
demagnetization
In
order
to
maintain
good
sound
quality,
it
is
recommended
that
the
head
assembly
be
demagnetized
when
distortion
or
poor
sound
quality
persists
after
cleaning
‘the
head.
If
the
head
assembly
becomes
magnetized,
it
could
create
loss
of
high-frequency
response.
Several
types
of
head
demagnetizer
are
available
and
may
be
Purchased
separately
at
local
electronics
supply
stores.
Follow
the
instructions
that
are
supplied
with
the
device.
Do
not
bring
any
type
of
metal
objects
or
tools
such
as
magnetic
Screwdrivers
in
contact
with
the
head
assembly.