Clarion ARX7370R - Page 3

@
TROUBLESHOOTING
Problem
Solution
Power
does
not
turn
on.
Fuse
is
blown.
Replace
with
a
fuse
of
the
same
amperage.
(No
sound
is
produced.)
incorrect
wiring.
Wire
properly.
Sound
quality
is
poor.
Playback
head
is
dirty.
Use
a
cleaning
tape,etc.,to
clean
the
head.
DOLBY
NR
button
is
not
pressed.
When
listening
to
a
tape
recorded
with
Dolby
NR,
press
the
DOLBY
NR
button
and
select
B
NR
or
C
NR.
Nothing
happens
when
but-|
Microprocessor
has
malfunctioned
due}
Turn
off
the
power,then
press
the
OPEN
button
tons
are
pressed.
to
noise,
etc.
and
remove
the
DCP.
Display
is
not
accurate.
Press
the
reset
button
for
about
2
seconds
with
a
thin
rod.
Reset button
Ss
DCP or main unit connectors are dirty.| Wipe the dirt off with a soft cloth moistened with
cleaning alcohol.
DSP
or
equalizer
does
not;
Micoprocessor
has
malfunctioned
due|
Press
Direct
button
1
(for
more
than
2
seconds)
to noise,etc.
while
holding in
the
DSP
button,then
turn
the
power
back
on.
MERROR DISPLAYS
{f an error occurs,one of the following displays is displayed.
Take
the
measures
described
below
to
eliminate
the
problem.
TeworDisplay
[Cause
—Ssss—<“—*~*~*~*~—s~s*sSS~S~S~SsSCSC‘M@geSSCSC~—~—~SCSC*S
Tape cannot be played due to defective tape such | Eject the tape then replace it with a new one.
as cut tape.
TAPE
ER2
Tape
is
caught
and
cannot
be
played.
Remove
the
caught
or
wound
tape.
TAPE
ER4
Tape
mode
cannot
be
detected.
This
is
a
failure
of
tape
mechanism.
Tape is caught and cannot be ejected. Eliminate the reason for which the tape is caug
CDCH
ER2
A
CD
inside
the
CD
changer
is
not
loaded.
This
is
a
failure
of
CD
changer's
meclanism.
CDCH
ER3
ACD
inside
the
CD
changer
cannot
be
played
due
|
Replace
with
a
non-scratched,non-wapedi-disc.
to scratches, etc.
ACD inside the CD changer cannot be played be-
cause it is loaded upside-down.
Communication error between main unit and ex-
panded DSP/EQ.
if
an
error
display
other
than
the
ones
described
above
appears,
press
the
reset
button.
BADJUSTMENTS
Measuin
Item Procedure instrumen
S-meter
1.
Input
the
98.1MHz/30dB
,
(400Hz-MOD
30%
)signal.
2.
Turn
on
the
power
swtch.
and,Press
the
AF
button
and
CH6
button
at
the
same
time.(TEST
MODE)
3.
Adjust
the
reading
of
LCD
indicator
to
[30----00}
(3.0V+0.2V)
by VR1.
Dolby
level
1.
Insert
a
Dolby
level
test
tape(400Hz-200nWb/m),connect
the
AC-volt
meter
to)
AC-volmeter
TP401(R)/TP402(L).
Dolby
kvel
tape
2.
Adjust
VR401(R)
and
VR402(L)
to
obtain
an
output
of
388mV+1.5/—0.5dB.
(Dolby switch:OFF)
CDCH
ER6
Eject
the
disc
then
reload
it
properly.
EQ
ER99
Connect
the
expanded
DSP/EQ
conrecting
cable
securely.
Adjustment point
TP402(L)
°
°
TP401(R)
Top side of main unit Bottom side of main PWB
2g: AFC73-70R/RW