JVC RC-EZ35SJ User manual

SERVICE MANUAL
COPYRIGHT © 2006 Victor Company of Japan, Limited No.MB529
2006/5
CD PORTABLE SYSTEM
MB52920065
RC-EZ35SJ,RC-EZ35SC,
RC-EZ32SJ,RC-EZ32SC,
RC-EZ31BJ,RC-EZ31BC
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
PRESET
FOLDER
REPEAT
STANDBY/
ON
1
4
7
9
RANDOM
TAP E
MUTING
2
5
8
REMOTE CONTROL UNIT
RM-SRCEZ35 J
0
CD/ /
DISPLAY
3
6
PROGRAM
EQ
VOL
CLOCK
TUNER
SERVICE POLICY
No service part is available for this model.
Exchange only.

1-2 (No.MB529)
SPECIFICATION
RC-EZ35S
RC-EZ32S
Compact disc player section Type Compact disc player
Signal detection Non-contact optical pick-up (semicondicator lazer)
Number of channels 2 channels
Radio section Frequency ranges FM 87.5 MHz - 108.0 MHz
AM 520 kHz - 1 710 kHz
Antennas Telescopic antenna for FM
Ferrite core antenna for AM
Cassette deck section Track 4-track 2-channel stereo
Motor Electronic governor DC motor for capstan
Heads Hard permalloy head for recording/playback, magnetic head for erase
Fast wind time Approx. 120 sec. (C-60 cassette)
General Speaker 10 cm ×2 (4 Ω, 3 W)
Power output 2 W per channel, min. RMS, driven into 4 Ωat 1 kHz with no more than 10 % total
harmonic distortion
Output terminals PHONES ×1 (Ø 3.5 mm, stereo)
Power supply AC 120 V , 60 Hz
DC 12 V ("R20/D (13F)" cells ×8)
Power consumption 17 W (at operation)
1.5 W (at standby)
Dimentions 435 mm (W) ×156 mm (H) ×241 mm (D) (17 3/16 in ×6 3/16 in ×9 1/12 in)
Mass Approx. 2.8 kg (6.2 lbs) (without batteries)
Compact disc player section Type Compact disc player
Signal detection Non-contact optical pick-up (semicondicator lazer)
Number of channels 2 channels
Radio section Frequency ranges FM 87.9 MHz - 107.9 MHz
AM 520 kHz - 1 710 kHz
Antennas Telescopic antenna for FM
Ferrite core antenna for AM
Cassette deck section Track 4-track 2-channel stereo
Motor Electronic governor DC motor for capstan
Heads Hard permalloy head for recording/playback, magnetic head for erase
Fast wind time Approx. 120 sec. (C-60 cassette)
General Speaker 10 cm ×2 (4 Ω, 3 W)
Power output 2 W per channel, min. RMS, driven into 4 Ωat 1 kHz with no more than 10 % total
harmonic distortion
Output terminals PHONES ×1 (Ø 3.5 mm, stereo)
Power supply AC 120 V , 60 Hz
DC 12 V ("R20/D (13F)" cells ×8)
Power consumption 17 W (at operation)
1.5 W (at standby)
Dimentions 435 mm (W) ×156 mm (H) ×241 mm (D) (17 3/16 in ×6 3/16 in ×9 1/12 in)
Mass Approx. 2.8 kg (6.2 lbs) (without batteries)

(No.MB529)1-3
RC-EZ31B
Design and specifications are subject to change without notice.
Compact disc player section Type Compact disc player
Signal detection Non-contact optical pick-up (semicondicator lazer)
Number of channels 2 channels
Radio section Frequency ranges FM 88 MHz - 108 MHz
AM 530 kHz - 1 700 kHz
Antennas Telescopic antenna for FM
Ferrite core antenna for AM
Cassette deck section Track 4-track 2-channel stereo
Motor Electronic governor DC motor for capstan
Heads Hard permalloy head for recording/playback, magnetic head for erase
Fast wind time Approx. 120 sec. (C-60 cassette)
General Speaker 10 cm ×2 (4 Ω, 3 W)
Power output 2 W per channel, min. RMS, driven into 4 Ωat 1 kHz with no more than 10 % total
harmonic distortion
Output terminals PHONES ×1 (Ø 3.5 mm, stereo)
Power supply AC 120 V , 60 Hz
DC 12 V ("R20/D (13F)" cells ×8)
Power consumption 17 W (at operation)
1.5 W (at standby)
Dimentions 435 mm (W) ×156 mm (H) ×241 mm (D) (17 3/16 in ×6 3/16 in ×9 1/12 in)
Mass Approx. 2.8 kg (6.2 lbs) (without batteries)

1-4 (No.MB529)
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purpos-
es. 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 per-
formed 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 characteris-
tics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by us-
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Ser-
vice Manual. Electrical components having such features
are identified by shading on the schematics and by ( ) on
the Parts List in the Service Manual. The use of a substitute
replacement which does not have the same safety charac-
teristics 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 reassem-
bling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isola-
tion check on the exposed metal parts of the product (an-
tenna 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.
• 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, particular-
ly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage cur-
rent 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, 1,000Ωper volt or more sensitivity
in the following manner. Connect a 1,500Ω10W resistor
paralleled by a 0.15µF AC-type capacitor between an ex-
posed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a return
path to the chassis, and measure the AC voltage across
the resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Voltage measured any must
not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5
mA AC (r.m.s.).
1.2 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.
1.3 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 pre-
forming repair of this system.
1.4 Critical parts for safety
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 ( )
and ICP ( ) or identified by the " " 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.
(This regulation dose not Except the J and C version)
Good earth ground
Place this
probe on
each exposed
metal part.
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500 10W
0.15 F AC TYPE

(No.MB529)1-5
1.5 Important for laser products
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
SECTION 3
DISASSEMBLY
This service manual does not describe DISASSEMBLY.
SECTION 4
ADJUSTMENT
This service manual does not describe ADJUSTMENT.
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
1.CLASS 1 LASER PRODUCT
2.CAUTION : Visible and/or invisible class 1M laser
radiation when open. Do not view directly with optical
instruments.
3.ATTENTION : Rayonnement laser visible et/ou
invisible de classe 1M une fois ouvert. Ne pas
regarder directement avec des instruments optiques.
4.CAUTION :This laser product uses visible and/or 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 defeated. 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 here in may result in
hazardous radiation exposure.
!Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
CAUTION : Invisible laser radiation when open and interlock
failed or defeated.
Avoid direct exposure to beam.
ATTENTION : Risque de radiations laser visible and invisible
quand l'appareil est ouvert et que le
systeme de verrouillage ne fonctionne pas ou
a ete mis hors service. Evitez toute exposition
directe au rayon.

(No.MB529)
Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
Victor Company of Japan, Limited
VPT
Printed in Japan