JVC XV-MK5GSL Service Manual
XA009200310
SERVICE MANUAL
DVD VIDEO PLAYER
XV-MK5GSL
Area Suffix
A --------------------- Australia
US ---------------- Singapore
UW ----- Brazil,Mexico,Peru
UX ------------- Saudi Arabia
TV
DVD
KARAOKE
STANDBY/ON
OPEN/
DISC
TV DVD
CLOSE
SELECT
TV1 TV2 TV3
2
1
3
TV4 TV5 TV6
5
4
6
TV7 TV8 TV9
8
7
9
TV-/-- TV0 MUTING
010 +10
RESERVE
TV/VIDEO
TITLE/GROUP
CANCELRETURN
U
N
E
CH
M
+
P
O
T
VOL VOL+
ENTER
C
CH
H
O
I
C
E
N
O
NEXTPREVIOUS
SELECTCLEAR
SLOW
-
SLOW+
3D
PHONIC
PROGRESSIVE
KARAOKE
KARAOKE
VOCAL
SCAN
SOUND
SUB TITLE
ANGLE
AUDIO
ECHO
KEY+
REPEAT
DIMMER
KEY EFFECT
VIDEO
M
E
N
U
N
E
E
R
C
S
VFPZOOM
AMP
VOL
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
No.XA009
2003/10
SPECIFICATION
General
Readable discs DVD VIDEO, DVD-R (Video format), DVD-RW (Video format), SVCD, Video CD, Audio CD (CD-DA),
MP3/WMA format, JPEG, CD-R/RW (CD-DA, SVCD, Video CD, MP3/WMA format, JPEG)
Video format NTSC, 525i (Interlaced scan)/525p (Progressive scan) selectable
PAL, Interlaced scan
Other
Power requirements AC 110V-240V, 50Hz/60Hz (Only for Australia model:AC240V, 50Hz)
Power consumption 12 W (POWER ON) 1.0 W (STANDBY mode)
Mass 4.4 kg
Dimensions (W x H x D) 435mm x 83mm x 322mm
Video outputs
COMPONENT (pin jacks) Y Output: 1.0 Vp-p (75 ohm), Pb/Pr Output: 0.7Vp-p (75 ohm)
VIDEO OUT (pin jack) 1.0 Vp-p (75 ohm)
S-VIDEO OUT (S jack) Y Output: 1.0 Vp-p (75 ohm), C Output: 286 mVp-p (75 ohm)
Horizontal resolution 500 lines or more
Audio input
MIC 1/2 4mVrms (8.2 kohm)
Audio outputs
ANALOG OUT (pin jack) 2.0 Vrms (10 kohm)
DIGITAL OUT (COAXIAL) 0.5 Vp-p (75 ohm termination)
DIGITAL OUT (OPTICAL) -21 dBm to -15 dBm (peak)
Audio characteristics
Frequency response CD (sampling frequency 44.1 kHz):2 Hz to 20 kHz
DVD (sampling frequency 48 kHz):2 Hz to 22 kHz
(4 Hz to 20 kHz for DTS and Dolby Digital bitstream signals)
DVD (sampling frequency 96 kHz):2 Hz to 44 kHz
Dynamic range 16 bit: More than 98 dB, 20 bit: More than 100 dB, 24 bit: More than 100 dB
Wow and flutter Unmeasurable (less than ±0.002%)
Total harmonic distortion less than 0.006%
• Specifications and appearance are subject to change without prior notice.
• Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarkes of Dolby Laboratories.
• "DTS"is a trademark of Digital Theater Systems, Inc.
Digital output signal chart
Disc type Output
PCM ONLY DOLBY DIGITAL/PCM STREAM/PCM
DVD with 48/44.1 kHz,
16/20/24 bit linear PCM
DVD with 96 kHz,
16/22/24 bit linear PCM
DVD with DTS 48kHz, 16bit, stereo linear PCM DTS bitstream
DVD with Dolby Digital 48 kHz, 16 bit, stereo linear PCM Dolby Digital bitstream
DVD with MPEG
Multichannel
SVCD/Video CD/Audio CD 44.1 kHz, 16 bit, stereo linear PCM
Audio CD with DTS 48kHz, 16bit, stereo linear PCM DTS bitstream
CD-R/RW with MP3/WMA No output
An y d i s c w i t h K A R A O K E m o d e 48/44.1kHz, 16bit, stereo liear PCM
48kHz, 16 bit, stereo linear PCM MPEG bitstream
48/44.1 kHz, 16 bit, stereo linear PCM
48kHz, 16 bit, stereo linear PCM (Down sampling)
1-2 (No.XA009)
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of th is product contains special hardw are 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 ( ) 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 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.
• P lug 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 ohm 10W
resistor paralleled by a 0.15 F AC-type capacitor between an exposed 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 resp onsibility 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 compone nts 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 preforming 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. (Except
the JC version)
(No.XA009)1-3
1.5 Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.5.1 Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser dio de) in devices such as DVD players.
Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sh eet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(3) Handling the optical pickup
• In order to maintain quality during transport and before instal lation, both sides of the laser di ode on the replacement optica l
pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily
destroy the laser diode.
1.6 Handling the traverse unit (optical pickup)
(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the
replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long
a time when attaching it to the connector.
(3) Handle the flexible cable carefully as it may break when subjected to strong force.
(4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
1-4 (No.XA009)
1.7 Import 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.
!
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
REPRODUCTION AND POSITION OF LABEL and PRINT
WARNING LABEL and PRINT
ADVARSEL: Usynlig laser-
stråling ved åbning, når
sikkerhedsafbrydere er ude
af funktion. Undgå udsættelse for stråling (d)
The inside of a rear panel
CAUTION: Invisible laser
radiation when open and
interlock failed or defeated.
AVOID DIRECT EXPOSURE
TO BEAM. (e)
VARNING: Osynlig laserstrålning när denna del är
öppnad och spärren är
urkopplad. Betrakta ej
strålen. (s)
VARO: Avattaessa ja suojalukitus ohitettaessa olet
alttiina näkymättömälle
lasersäteilylle. Älä katso
säteeseen. (f)
(No.XA009)1-5
1.8 Precautions for Service
1.8.1 Handling of Traverse Unit and Laser Pickup
(1) Do not touch any peripheral element of the pickup or the actuator.
(2) The traverse unit and the pickup are precision devices an d therefore must not be subjected to strong shock.
(3) Do not use a tester to examine the laser diode. (The diode can easily be destroyed by the internal power supply of the tester.)
(4) To replace the traverse unit, pull out the metal short pin for protection from charging.
(5) When replacing the pickup, after mounting a new pickup, remove the solder on the short land which is provided at the center of
the flexible wire to open the circuit.
(6) Half-fixed resistors for laser power adjustment are adjusted in pairs at shipment to match the characteristics of the optical block.
Do not change the setting of these half-fixed resistors for laser power adjustment.
1.8.2 Destruction of Traverse Unit and Laser Pickup by Static Electricity
Laser diodes are easily destroyed by static electricity charged on clothingor the human body. Before repairing peripheral elements of
the traverse unit or pickup, be sure to take the following electrostatic protection:
(1) Wear an antistatic wrist wrap.
(2) With a conductive sheet or a steel plate on the workbench on which the traverse unit or the pick up is to be repaired, ground the
sheet or the plate.
(3) After removing the flexible wire from the connecto r (CN101), short-circuit the flexible wire by the metal clip.
(4) Short-circuit the laser diode by soldering the land which is provided at the center of the flexible wire for the pickup.
After completing the repair, remove the solder to open the circuit.
Short circuit
Short circuit
CN101
*Please refer to the disassembly method for detailes.
Servo control board
1-6 (No.XA009)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.XA009)1-7
SECTION 3
TOP COVER
DISASSEMBLY
3.1 Main body section
3.1.1 Removing the top cover (See Figure 1)
(1) Remove the four screws A attaching the top cover on both
sides of the main body.
(2) Remove the two screws B attaching the top cover on the
back of the main body.
(3) Raise the both sides and lower part of the rea r of the top
cover, with opening them slightly in an outward direction.
And the top cover will be removed.
3.1.2 Removing the front panel assembly
(See Figure 2, Figure 3, Figure 4)
• Prior to performing the following procedure, remove the top
cover.
• There is no need to remove the mechanism assembly.
(1) Disconnect the flat wire from connector JT901
the power supply board.
(2) Disconnect the card wire from connector CN501
on the servo control board and signal output terminal board
respectively.
(3) Disconnect the flat wire from connector JT701 on the signal
output terminal board.
(4) Remove the one screw J attaching the MIC amplifier
board.
(5) Remove the three screws C attaching the front panel
assembly on the bottom of the main body.
(6) Hook a and b are removed respectively, and the front panel
assembly is removed.
3.1.3 Removing the changer mechanism assembly
(See Figure 2, Figure 4)
• Prior to performing the following procedure, remove the top
cover.
• There is no need to remove the front panel assembly.
(1) Disconnect the card wire from connector CN501
on the servo control board.
CN503
(2) Remove the four screws D attaching the changer
mechanism assembly.
, JT902 on
, CN702
, CN502,
TOP COVER
TOP COVER
A x 2
A x 2
Fig.1
Front panel
assembly
Hook a
Mechanism assembly Servo control boardCN502
Hook b
C
Fig.3
B
B
C
Hook a
Hook b
C
CN702
JT701
Signal output terminal board
1-8 (No.XA009)
JT901,JT902
D
D
Fig.2
MIC Amplifier board
J
D
D
Power supply board
CN501 CN503
Fig.4
3.1.4 Removing the servo control board (See Figure 5)
Servo
control board
• Prior to performing the following procedure, remove the
changer mechanism assembly.
(1) Disconnect the card wire from connector CN101
, CN103,
CN104, CN105, CN201 on the servo control board.
ATTENTION :
At this time, please extract the wire after short-circuited
of two places on the wire in part c with solder. Please
remove the solder two places of part c after connecting
the wire CN101
when reassembling.
(2) Remove the two screws E attaching the servo control
board.
Servo
control board
E
Part c
E
3.1.5 Removing the power supply boa rd (Se e Fi gu re 6, Fi gu re 7)
• P rior to performing the following procedure, remove the top
cover.
(1) Disconnect the flat wire from connector JT901
, JT904 on the power supply board.
JT903
, JT902,
(2) Disconnect the socket wire from connector P901 on the
power supply board.
(3) Remove the three screws F attaching the power supply
board.
(4) Remove the one screw G attaching the power supply board
on the back of the main body.
3.1.6 Removing the signal output terminal board
(See Figure 6, Figure 7)
• P rior to performing the following procedure, remove the top
cover.
(1) Disconnect the card wire from connector CN601
, CN701,
CN702 on the signal output terminal board.
(2) Disconnect the flat wire from connector JT701
on the signal
output terminal board.
(3) Disconnect the flat wire from connector JT903, JT904 on
the power supply board.
(4) Remove the three screws H attaching the signal output
terminal board.
(5) Remove the six screws I attaching the signal output
terminal board on the back of the main body.
H
CN702
CN601
H
CN201
CN101 CN105 CN104 CN103
Fig.5
H
CN701
JT701
JT901,JT902
JT903,JT904
Power supply boardSignal output terminal board
Fig.6
P901
F
F
F
I
I
G
Fig.7
(No.XA009)1-9
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