Clarion DXZ938R Service Manual

To engineers in charge of repair or inspecti-
on of our products.
Before repair or inspection, make sure to follow the inst-
ructions so that customers and Engineers in charge of
repair or inspection can avoid suffering any risk or injury.
1. Use specified parts.
The system uses parts with special safety features against fire
and voltage. Use only parts with equivalent characteristics when
replacing them.
The use of unspecified parts shall be regarded as remodeling for
which we shail not be liable. The onus of product liability (PL) shall
not be our responsibility in cases where an accident or failure is as
a result of unspecified parts being used.
2. Place the parts and wiring back in their original positions after
replacement or re-wiring.
For proper circuit construction, use of insulation tubes, bonding,
gaps to PWB, etc, is involved. The wiring connection and routing to
the PWB are specially planned using clamps to keep away from
heated and high voltage parts. Ensure that they are placed back
in their original positions after repair or inspection.
If extended damage is caused due to negligence during repair. the
legal responsibility shall be with the repairing company.
3. Check for safety after repair.
Check that the screws, parts and wires are put back securely in
their original position after repair. Ensure for safety reasons there
is NO possibility of secondary ploblems around the repaired spots.
If extended damage is caused due to negligence of repair, the
legal responsibility shall be with the repairing company.
4. Caution in removal and making wiring connection to the parts for
the automobile.
Disconnect the battery terminal after turning the ignition key off.
If wrong wiring connections are made with the battery connected,
a short circuit and/or fire may occur.
If extensive damage is caused due to negligence of repair, the
legal responsibility shall be with the repairing company.
5. Cautions regarding chips.
Do not reuse removed chips even when no abnormality is obse-
rved in their appearance. Always replace them with new ones
(The chip parts include resistors, capacitors, diodes, transistors,
etc). The negative pole of tantalum capacitors is highly suscepti-
ble to heat, so use special care when replacing them and check
the operation afterwards.
6. Cautions in handling flexible PWB
Before working with a soldering iron, make sure that the iron tip
temperature is around 270°C. Take care not to apply the iron tip
repeatedly
(more
than
three
times)
to
the
same
patterns.
Also
take
Care not to apply the tip with force.
7.
Turn
the
unit
OFF
during
disassembly
and
parts
replacement.
Recheck
all
work
before
you
apply
power
to
the
unit.
8. Cautions in checking that the optical pickup lights up.
The
laser
is
focused
on
the
disc
reflection
surface
through
the
lens
of
the
optical
pickup.
When
checking
that
the
laser
optical
diode
lights
up,
keep
your
eyes
more
than
30cms
away
from
the
lens.
Prolonged viewing of the laser within 30cms may damage your
eyesight.
9.
Cautions
in
handling
the
optical
pickup
The
laser
diode
of
the
optical
pickup
can
be
damaged
by
electro-
Static
Charge
caused
by
your
clothes
and
body.
Make
sure
to
avoid
electrostatic
charges
on
your
clothes
or
body,
or
discharge
static
electricity
before
handling
the
optical
pickup.
DXZ938R
2
9-1.Laser diode
The
laser
diode
terminals
are
shorted
for
transportation
in
order to prevent electrostatic damage.
After
replacement,
open
the
shorted
circuit.
When
removing
the
pickup
from
the
mechanism.
short
the
terminals
by
sold-
ering them to prevent this damage
9-2.Actuator
The actuator has a powerful magnetic circuit. If a magnetic
material is put close to it. Its characteristics will change
Ensure that no foreign substances enter through the ventila-
tion slots in the cover.
9-3.Cleaning the lens
Dust
on
the
optical
lens
affects
performance.
To
clean
the
lens,
apply
a
small
amount
of
isopropyl
alcohol
to
lens
paper
and wipe the lens gently.
CAUTIONS
This
appliance
contains
a
laser
system
and
is
classified
as
a
"CLASS
1
LASER
PRODUCT".
To
use
this
model
properly.
read
this
Owner's
Manual
carefully
and
keep
this
manual
for
your
futu-
re
reference.
In
case
of
any
trouble
with
this
player,
please
cont-
act
your
nearest
"AUTHORIZED
service
station".
To
prevent
dir-
ect
exposure
to
the
laser
beam,
do
not
try
to
open
the
enclosure.
USE
OF
CONTROLS
OR
ADJUSTMENTS
OR
PERFORMANCE
OF
PROCEDURES
OTHER
THAN
THOSE
SPECIFIED
IN
THE
OWNER'S
MANUAL
MAY
RESULT
IN
HAZARDOUS
RADIATION
EXPOSURE
J Clarion
12V © GROUND
LW 153-279kHz ae
MW 531-1602kHz j
FM(UKW) 87.5-108MHz |
This unit is designed for on-road vehicle purpose.
CLASS 1 LASER PRODUCT
Manufactured under license from Dolby Laboratories
“Dolby”, “Pro Logic* and the double-D symbol
are trademarks of Dolby Laborator-es
iawe
286- J)
Clanioe Co_Lid
MADE INC)

Clarion DXZ938R Specifications

Radio Specifications

FM receiving frequency range	87.5 to 108 MHz (0.05 MHz steps)
MW receiving frequency range	531 to 1602 kHz (9 kHz steps)
LW receiving frequency range	153 to 279 kHz (3 kHz steps)

CD Player Specifications

frequency response	5 Hz to 20 kHz (± 1 dB)
signal to noise ratio	100 dB (1 kHz) IHF-A
dynamic range	96 dB (1 kHz)

General Specifications

output power	4 x 31 W (DIN 45324, +B=14.4V)
power supply voltage	14.4 V DC (10.8 to 15.6 V allowable)
power consumption	Less than 15 A

Weight and Dimensions

main unit weight	1.7 kg
remote control unit weight	30 g (including battery)
main unit dimensions	178 (W) x 50 (H) x 155 (D) mm