Jvc XVD 9000 Service Manual

Page 1

JVB

SERVICE MANUAL

DVD AUDIONIDEO PLAYER

XV-D9000

Area Suffix
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Contents
Safety precautions ------------------------ 1-2 Importance admistering point
Preventing static electricity ------------- 1-3 on the safety ----- 1-6
Dismantling and assembling Disassembly method -------------------- 1-7
the traverse unit ----- 1-4 Method of initializing EEPROM
Important for laser products ------------ 1-5 and display of jitter value ----- 1-18
Description of major ICs ---------------- 1-19
This service manual is printed on 100% recycled paper. N 0. A000 4

COPYRIGHT (o 2001 vrcron COMPANY OF JAPAN, LTD.
Mar. 2001

Page 2

XV-D9000

-Safety Precautions

1.This design of this product contains special hardware and many circuits and components specially
for safety purposes. For continued protection, no changes should be made to the original design
unless authorized in writing by the manufacturer. Replacement parts must be identical to those
used in the original circuits. Services should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the product should not be made. Any design alterations of
the product should not be made. Any design alterations or additions will void the warranty
and will further relieve the manufacture of responsibility for personal injury or property damage
resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics.
These characteristics are often not evident from visual inspection nor can the protection afforded
by them necessarily be obtained by using replacement components rated for higher voltage,
wattage, etc. Replacement parts which have these special safety characteristics are identified in
the Parts List of Service Manual. Electrical components having such features are identified by
shading on the schematics and by (fi) on the Parts List in the Service Manual. The use of a
substitute replacement which does not have the same safety characteristics as the recommended
replacement parts shown in the Parts List of Service Manual may create shock, fire, or other
hazards.

4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the
like to be separated from live parts, high temperature parts, moving parts and/or sharp edges
for the prevention of electric shock and fire hazard. When service is required, the original lead
routing and dress should be observed, and it should be confirmed that they have been returned
to normal, after reassembling.

5. Leakage current check (Electrical shock hazard testing)
After reassembling the product, always perform an isolation check on the exposed metal parts of
the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control
shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.

Do not use a line isolation transformer during this check.

0 Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure
the leakage current from each exposed metal parts of the cabinet, particularly any exposed
metal part having areturn path to the chassis, to a known good earth ground. Any leakage
current must not exceed 0.5mA AC (r.m.s.)

. Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms
per volt or more sensitivity in the following manner. Connect a 1,5009 10W resistor paralleled by
a 0.15uF AC-type capacitor between an exposed

AC VOLTMETER
metal part and a known good earth ground. a (Having 1000
Measure the AC voltage across the resistor with the ohms/volts,
AC voltmeter. or more sensitivity)
Move the resistor connection to each exposed °
metal part, particularly any exposed metal part 0.15HF ACTYPE
havmg a return path to the chasSIs, and measure _"_ Place this
the AC voltage across the reSIstor. Now, reverse probe on
the plug in the AC outlet and repeat each 'Wl/ V teach exposed
measurement. voltage measured Any must not 15009 10W metal part.

exceed 0.75V AC (r.m.s.).This corresponds to 0.5
Good earth ground

- Warning

1.This equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
3. Repairs must be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage selector is provided, check setting for local voltage.

1-2

A CAUTION Burrs formed during molding may be left over on some parts of the chassis. Therefore,

pay attention to such burrs in the case of preforming repair of this system.

Page 5

XV-D9000

Important for Laser Products

1.CLASS 1 LASER PRODUCT

2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.

3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.

4.CAUTION : The compact disc player uses invisible laser
radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are de
feated. It is dangerous to defeat the safety switches.

5.CAUTION : If safety switches malfunction, the laser is able
to function.

6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.

A CAUTION Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.

VARNING : Osynlig laserstralning ar denna del ar oppnad
och spérren ér urkopplad. Betrakta ej strélen.

VARO : Avanaessa ja suojalukitus ohitettaessa olet
alttiina nékyméttomalle laserséteilylleflla katso
sateeseen.

ADVARSEL : Usynlig laserstraling ved abning , nar
sikkerhedsafbrydere er ude af funktion. Undgé
udsaettelse for stréling.

ADVARSEL : Usynlig laserstréling ved épning,nér
sikkerhetsbryteren er avslott. unnga utsettelse
for stréling.

REPRODUCTION AND POSITION OF LABELS
WARNING LABEL

CAUTDVI MSW RADlATlUN Vii W 0pr
JG NOT STARE W9 BEAM

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1-5

Page 72

XV-D9000

l Power supply & FL display board (Reverse side)