JVC XV-FA92SL Service Manual
SERVICE MANUAL
DVD AUDIO/VIDEO PLAYER
XV-FA92SL
Area Suffix (XV-FA92SL)
B ------------- U.K.
EN ---------- Northern Europe
XV-FA92SL
Model
XV-FA92SL
< ATTENTION ! >
Please pull out the AC plug code after the standby indicator lights pushing the
power supply button without fail after completing the repair.
The mechanism becomes initialed position.
There is a possibility to break when carrying in not initialed position the mechanism
but the state.
Body color
Silver
Contents
Safety precautions ------------------------ 1-2
Preventing static electricity ------------- 1-3
Importance admistering
point on the safety ------------ 1-4
Precautions for service ----------------- 1-5
This service manual is printed on 100% recycled paper.
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
Disassembly method -------------------- 1-6
Adjustment method ---------------------- 1-24
Troubleshooting -------------------------- 1-28
Description of major ICs ---------------- 1-32
Glossary of term and abbreviations -- 1-53
No.A0024
Nov. 2001
XV-FA92SL
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 manufacturer`s 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 re-assembling.
5. Leakage current 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.
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 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.).
0.15 F AC TYPE
1500 10W
Good earth ground
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
Place this
probe on
each exposed
metal part.
!
1. This equipment has been designed and manuf actured to meet international safety standards.
2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
3. Repairs m ust 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 f or 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 pr inted 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 J and C version)
1-2
XV-FA92SL
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.
1.1. Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players.
Be careful to use proper grounding in the area where repairs are being performed.
1.1.1. Ground the workbench
1. Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over
it before placing the traverse unit (optical pickup) on it.
1.1.2. Ground yourself
1. Use an anti-static wrist strap to release any static electricity built up in your body.
(caption)
Anti-static wrist strap
Conductive material
(conductive sheet) or iron plate
1.1.3. Handling the optical pickup
1. In order to maintain quality during transport and before installation, both sides of the laser diode on the
replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
2. 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.
1.2. 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. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it
1-3
XV-FA92SL
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.
!
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
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)
ADVARSEL: Usynlig laserstråling ved åbning, når
sikkerhedsafbrydere er ude
af funktion. Undgå udsættelse for stråling (d)
VARO: Avattaessa ja suojalukitus ohitettaessa olet
alttiina näkymättömälle
lasersäteilylle. Älä katso
säteeseen. (f)
CLASS 1
LASER PRODUCT
1-4
Precautions for Service
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 and 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.
Destruction of Traverse Unit and Laser Pickup by Static Electricity
Laser diodes are easily destroyed by static electricity charged on clothing
or the human body. Before repairing peripheral elements of the traverse
unit or pickup, be sure to take the following electrostatic protection:
XV-FA92SL
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 connector (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 two places of the flexible board for the pickup.
After completing the repair, remove at the two places of the solder to open the circuit.
Flexible wire
Metal clip
Pickup unit
Flexible board
Traverse mechanism unit
Land (Soldering two places)
1-5
XV-FA92SL
Disassembly method
<Main body>
Removing the top cover (See Fig.1)
1.
Remove the four screws A on each side of the body.
2.
Remove the two screws B on the back of the body.
3.
Lift the rear part of the top cover and remove in the
direction of the arrow while pulling both sides of the
top cover outward.
Removing the front panel assembly
(See Fig.2 and 3)
Prior to performing the following procedure, remove
the top cover.
A
2
Power board
CN951
Top cover
A
B
2
Fig.1
Servo control
board
CN801
1.
Disconnect the card wire from connector CN801 and
,
CN803 on the servo control board
the power board respectively.
2.
Remove the three screws C on the upper side of the
body.
3.
Remove the three screws D on the bottom of the
body.
Remove the front panel assembly toward the front.
and CN951 on
Front panel assembly
D
CN803
C
Fig.2
Front panel assembly
(Bottom)
1-6
Fig.3
XV-FA92SL
Removing the main tray assembly
(See Fig.4 to 7)
Prior to performing the following procedure, remove
the top cover and the front panel assembly.
1.
Turn over the body and insert a screwdriver into the
slot of the bottom chassis, then move it in the
direction of the arrow in Fig.4. The main tray
assembly will move forward.
2.
Draw the main tray assembly toward the front
manually.
3.
Bring up the joint a over the boss of the loading base
assembly, and remove the main tray assembly
toward the front.
4.
Disconnect the card wire, on the back of the main
tray assembly, from connector CN841 on the relay
board 1.
Main tray assembly
Bottom chassis
(slot)
Fig.4
Joint a
Card wire
Main tray assembly
Loading base assembly
Bottom chassis
Fig.5
Relay board 1
CN841
Joint a
Loading base
assembly
Boss
Relay board 1
Main tray assembly
Fig.6Fig.7
1-7
XV-FA92SL
Reattaching the main tray assembly
(See Fig.8 to 10)
1.
Turn over the main tray assembly and pass the card
wire extending from the photo sensor board through
the notch b, in advance (Fig.8).
2.
From above the loading base assembly, turn the
load base counterclockwise until the slide gear stops
at the back end (Bring down the traverse mechanism
assembly).
3.
Reattach the main tray assembly to the loading base
assembly while fitting to the groove on the right and
left sides of the loading base assembly.
4.
Connect the card wire through the notch b to
connector CN841 on the relay board 1.
5.
Reattach the main tray assembly while fitting the slot
c to the shaft.
Main tray assembly
Photo sensor board
Loading base assembly
Load base
Notch b
Fig.8
Slide gear
Removing the loading base assembly
(See Fig.11)
Prior to performing the following procedure, remove
the top cover, the front panel assembly and the main
tray assembly.
1.
Disconnect the wire from connector CN808, CN809
and the card wire from CN210 on the servo control
board respectively.
2.
Remove the seven screws E attaching the loading
base assembly.
Joint a
Boss
Relay board 1
CN841
Loading base assembly
E
E
Fig.9
Slot c
Shaft
Fig.10
E
Servo control board
CN210
CN808
CN809
E
E
Fig.11
1-8
Removing the rear panel (See Fig.12)
Prior to performing the following procedure, remove
the top cover.
1.
Remove the fourteen screws F attaching the rear
panel.
FF
XV-FA92SL
F
Removing each board (See Fig.13,14)
Prior to performing the following procedure, remove
the top cover, the front panel assembly, the main
tray assembly, rear panel and the loading base
assembly.
Surround audio board
Pull out the surround audio terminal board from
1.
connector CN763.
Remove the screw G attaching the surround audio
2.
board.
Pull out the surround audio board from connector
3.
CN754 and CN603.
Servo control board
Pull out the relay board 2 on the upper side of the
1.
body.
Disconnect the wire from connector CN807, CN810
2.
and CN901 on the servo control board respectively.
Lug wire
Relay board 1
Power
board
I
F
Relay board 2
CN842
Fig.12
H
Fig.13
F
CN901
CN807
Rear panel
Surround audio
terminal board
CN763
CN754
A/V output board
G
H
CN603
Surround audio board
Servo control
board
H
CN810
Remove the screw I attaching the lug wire.
3.
Remove the three screws H attaching the servo
4.
control board.
Relay board 1
1.
Disconnect the wire from connector CN842 on the
relay board 1.
2.
Remove the two screws I attaching the relay board.
A/V output board
1.
Pull out the relay board 2 on the upper side of the body.
2.
Remove the four screws J attaching the A/V output
board.
Power board
1.
Disconnect the wire from connector CN952 and
CN953 on the power board.
2.
Remove the four screws K on the upper side of the
body.
Power board
K
CN952
CN953
K
Relay board 1
Fig.14
A/V output board
J
J
Relay board 2
Servo control
board
1-9
XV-FA92SL
Removing the traverse mechanism
assembly (See Fig.15 and 16)
Prior to performing the following procedure, remove
the top cover and the front panel assembly.
REFERENCE:
1.
Eject the main tray assembly toward the front
referring to “Removing the main tray assembly”.
2.
Remove the two screws L and pull out the clamper
base assembly upward.
3.
Disconnect the card wire from connector CN210 on
the servo control board.
4.
Remove the four screws M and the traverse
mechanism assembly upward.
CAUTION:
There is no need to remove the loading
base assembly.
When reattaching the traverse mechanism
assembly, pass the card wire extending
from the traverse mechanism assembly
through the notch d of the elevator base.
Clamper base
assembly
L
L
M
Servo control board
CN210
Fig.15
Notch d
Servo control board
CN210
<Front panel assembly>
Prior to performing the following procedure, remove
the top cover and the front panel assembly.
Removing the power switch board
(See Fig.17)
1.
Remove the two screws N on the back of the front
panel assembly.
2.
Disconnect the card wire from connector CN813 and
CN806 on the power switch board.
Removing the operation switch board
(See Fig.17)
1.
Remove the six screws O on the back of the front
panel assembly.
2.
Disconnect the card wire from connector CN812 on
the operation switch board.
Removing the FL display board
(See Fig.17)
1.
Remove the two screws P on the back of the front
panel assembly.
Traverse mechanism
assembly
Operation switch board
OO
OP
FL display board
M
Fig.16
Fig.17
CN805
CN813
CN812
CN806
Power switch board
N
2.
Disconnect the card wire from connector CN805 on
the FL display board.
1-10
XV-FA92SL
<Loading base assembly unit>
Prior to performing the following procedures, remove
the top cover, the front panel assembly, the main
tray assembly, the loading base assembly.
Removing the elevator base
(See Fig.18 and 19)
REFERENCE:
1.
Turn over the loading base assembly and remove
the two screws Q.
2.
Remove the elevator base upward.
It is not necessary to remove the traverse
mechanism assembly from the elevator
base. As the removing procedure of the
traverse mechanism, please refer to
“Removing the traverse mechanism
assembly”.
Slide gear
Elevator base
Shafts
Fig.18
Slide gear
Q
Reattaching the elevator base
REFERENCE:
1.
Reattach the elevator base to the loading base
assembly while fitting the two shafts on the side of
the elevator base to the grooves of the slide gear.
2.
Reattach the two screws Q.
From above the loading base, turn the
load base counterclockwise until the slide
gear stops at the back end as shown in
Fig.19.
Load base
Fig.19
1-11
XV-FA92SL
Removing the belt / load base / slide
gear
Prior to performing the following procedures, remove
the elevator base.
1.
Remove the belt on the upper side of the loading
base assembly.
2.
Remove the screw R attaching the pulley gear.
3.
Remove the pulley gear, the gear 1, the gear 2 and
the belt respectively.
4.
Remove the screw S and the load base upward.
5.
Remove the two screws T and the slide gear
upward.
CAUTION: When reattaching the slide gear
and the load base,
1.
Move the slide gear toward the front until it stops
(Fig.23).
Loading base assembly
Belt
R
Pulley gear
Fig.20
Gear 2
Pulley gear
Gear 1
S
2.
Make sure that the part d of the load base is out of
alignment with the switch e and that the gear f is
disengaged from the slide gear.
Slide gear
Switch e
Load base
Load base
Loading base assembly
Fig.21
T
Slide gear
1-12
Part d
Gear f
Fig.22Fig.23
XV-FA92SL
Removing the loading motor / loading
motor board (See Fig.24 and 25)
1.
Remove the two screws U attaching the loading
motor on the upper side of the loading base
assembly.
2.
Turn over the loading base assembly and unsolder
the two soldering g on the loading motor board.
3.
Remove the two screws V attaching the loading
motor board.
4.
Spread apart the two tabs h and pull out the loading
motor.
CAUTION:
When reattaching the loading motor board,
settle the wires on the two hooks i on the
loading base assembly and draw the other
end to the left as shown in Fig.26.
Removing the tray switch board
(See Fig.26)
U
Loading motor
Fig.24
V
Loading motor board
1.
Turn over the loading base assembly, and remove
the tray switch board while spreading apart the two
tabs j.
Hooks i
Tray switch board
Tabs j
Loading motor board
Soldering g
Tabs h
Loading motor
Fig.25Fig.26
1-13
XV-FA92SL
<Traverse mechanism unit>
Removing the pickup (See Fig.1 to 5)
It is not necessary to remove the traverse
mechanism unit.
1.
Solder soldering a on the flexible board next to the
pickup unit.
2.
From the bottom of the traverse mechanism unit,
disconnect the flexible wire from CN101 on the
pickup board.
ATTENTION:
3.
Remove the screw A attaching the shaft stopper (R)
on the upper side of the traverse mechanism unit.
Pull the side of the shaft stopper (R) outward to
release the joint b and remove it upward. Remove
the skew spring at the same time.
Disconnecting the flexible wire without
soldering may cause damage to the
pickup.
Traverse mechanism unit
Pickup unit
Flexible board
Soldering a
Fig.1
Pickup board
CN101
Flexible wire
4.
Move the shaft in the direction of the arrow to release
it from the part c.
5.
Release the joint d with the shaft and remove the
pickup with the shaft.
6.
Pull out the shaft.
7.
Remove the screw B attaching the switch actuator.
Shaft
Pickup
B
Switch actuator
Pickup unit
Shaft
Joint d
Shaft stopper (R)
Fig.2
Shaft stopper (R)
Fig.3
A
A
Shaft
Part c
Shaft stopper (R)
Joint b
1-14
Fig.5
Skew spring
Shaft
Fig.4
XV-FA92SL
Removing the pickup board
(See Fig.1 and 6)
It is not necessary to remove the traverse
mechanism unit.
1.
Solder soldering a on the flexible board next to the
pickup unit.
2.
From the bottom of the traverse mechanism unit,
disconnect the flexible wire from CN101 on the
pickup board.
ATTENTION:
3.
Disconnect the card wire from connector CN201 on
the pickup board and unsolder the soldering e and f
on the harnesses
4.
Remove the screw C attaching the pickup board and
release the two joints g.
Disconnecting the flexible wire without
soldering may cause damage to the
pickup.
Traverse mechanism unit
Joint g
Feed motor
assembly
Pickup unit
Flexible board
Soldering a
Fig.1
Pickup board
C
CN101
Removing the feed motor assembly
(See Fig.1, 6 and 7)
Prior to performing the following procedure, remove
the traverse mechanism unit.
1.
Solder soldering a on the flexible board next to the
pickup unit.
2.
From the bottom of the traverse mechanism unit,
disconnect the flexible wire from CN101 on the
pickup board.
ATTENTION:
3.
Remove the pickup board.
4.
Remove the two screws D attaching the feed motor
assembly and remove the thrust spring. Move the
feed motor assembly in the direction of the arrow to
pull it out from the feed holder.
Disconnecting the flexible wire without
soldering may cause damage to the
pickup.
Soldering f
Feed holder assembly
Soldering e
Feed motor assembly
CN201
Fig.6
Thrust spring
D
D
Fig.7
1-15
XV-FA92SL
Removing the turn table assembly
(See Fig.6, 8 and 9)
Prior to performing the following procedure, remove
the traverse mechanism unit.
1.
Disconnect the card wire extending from the turn
table assembly, from connector CN201 on the pickup
board.
2.
Remove the screw E attaching the shaft stopper (F)
on the upper side of the traverse mechanism unit.
Pull the side of the shaft stopper (F) outward to
release the joint h and remove it upward. Remove
the spring at the same time.
3.
Remove the screw F attaching the turn table
assembly.
4.
Move the turn table assembly outward and pull out
from the shaft. Then remove it from the base chassis.
Pickup board
CN101
CN201
Fig.6
Traverse mechanism unit
Shaft stopper (F)
Turn table assembly
Shaft stopper (F)
Joint h
E
E
F
Fig.8
E
Shaft stopper (F)
F
Spring
1-16
Shaft
Base chassis
Shaft
Turn table assembly
Fig.9
<Main tray assembly unit>
Prior to performing the following procedures, remove
the top cover, the front panel assembly and the main
tray assembly.
XV-FA92SL
Main tray assembly
Removing the fitting (See Fig.1)
1.
Remove the fitting on the front side of the main tray
assembly while releasing the four joints a upward.
Hook
Fitting
Lifts for above while pulling the hook
in three places to front side.
Removing the main tray cover and the
main tray (See Fig.2 and 3)
Prior to performing the following procedure, remove
the fitting.
Joints a
Fitting
Main tray
assembly
Joints a
Fig.1
AA
1.
Remove the six screws A attaching the main tray
on the under side of the main tray assembly.
2.
Remove the screw B attaching the main tray cover
on the upper side of the main tray assembly.
3.
Push the two joint tabs b on the back of the main
tray assembly to release the main tray cover from
the tray bottom. Disengage the joint tabs c of the
main tray from the main tray cover.
Main tray cover
Joint tab c
AA
Fig.2
B
Joint tab c
Joint tab b
Joint tab b
Main tray
Fig.3
1-17
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