Jvc RSWP 1 T Service Manual

Page 1

RS-WP1 WT

JVB

SERVICE MANUAL

CD PORTABLE SYSTEM

RS-WP1 WT

Areas suffix
J -------------------------- U.S.A

BEE

DIGITAL AUDIO
Contents
Safety Precautions ----------------------- 1-2 Flow of functional
Important for laser products ------------ 1-3 operation unit Toc read .......... 1-21
Preventing static electricity -------------- 1-4 Maintenance of laser pickup ............ 1-22
Disassembly method --------------------- 1-5 Replacement of laser picup ............. 1-22
Adjustment method ----------------------- 1-17 Description of major ICs ----------------- 1-23

No.20943

COPYRIGHT (C 2001 VICTOR COMPANY OF JAPAN, LTD.
May. 2001

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RS-WP1 WT

-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 manufacturers 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 (/t\,) 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 re-assembling.

5. Leakage currnet check (Electrical shock hazard testing)

After re-assembling 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 a return
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 1,500 Q10W resistor paralleled by a 0.1 51.1 F AC-type capacitor

between an exposed metal part and a known good earth ground. AC VOLTMETER
Measure the AC voltage across the resistor with the AC a (Having1000
voltmeter. ohms/volts,

Move the resistor connection to eachexposed metal part, c more sens'W'W)

particularly any exposed metal part having a return path to
the chassis, and meausre the AC voltage across the resistor. 0'15: AC TYPE

Now, reverse the plug in the AC outlet and repeat each -"| Placehis
measurement. Voltage measured any must not exceed 0.75 V W . ~ gaitheeigosed
AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). 15009 10W metal part.
Good earth ground
- Warning A CAUTION

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.

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.

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor (-), diode (h) and ICP (Q) or identified by the (N
mark nearby are critical for safety.

When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer.
(Except the J and C version)

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RS-WP1 WT

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
laserradiation and is equipped with safety switches
whichprevent 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 sparren ar urkopplad. Betrakta ej stralen.

VARO : Avattaessa ja suojalukitus ohitettaessa olet
alttiina nakymattomalle lasersateilylle.Ala katso

sateeseen.

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

ADVARSEL : Usynlig laserstréling ved apning,nar
sikkerhetsbryteren er avslott. unnga utsettelse
for straling.

WARNING LABEL

CLASS 1
LASER PRODUCT

REPRODUCTION AND POSITION OF LABELS

DANGER : Inwsime laser radiation
when open and interlock or

VAHO : Avanaessa la suojalukllus
ohltsliaessa olet amilna

defeated. ndkymammane Iasersaienyuejxla
AVOID DIFIECT EXPOSURE TO katso 55.39399". id)
BEAM (6)

VARNING : Osynllg laserstrélnlng ar ADVARSEL :USanIg IasevstrAlmg
denna del Ar dppnad och spsrmn ar ved ébmng . "At

urkopplad. 591mm 91 male". (5) sikkerhedsafbrydere er ude aI
funktion. undga udsaltelse Ior
sirsnng. (I)

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