JVC MX-DVB10 User manual

SERVICE MANUAL
COMPACT COMPONENT SYSTEM
No.21120
Sep. 2002
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
MX-DVB10
MX-DVB10
Safety precautions
Preventing static electricity
Precautions for service
Important for laser products
Disassembly method
Adjustment method
1-2
1-3
1-4
1-5
1-6
1-26
Maintenance of laser pickup
Replacement of laser pickup
Flow of functional operation
until TOC read
Description of major ICs
1-34
1-34
1-35
1-36~70
Contents
Area suffix
US ------------- Singapore
UX ---------- Saudi Arabia
UN -------------------Asean
(SP-XCDVB10)
(SP-XSDVB10)
(CA-MXDVB10) (SP-WDVB10)
(SP-XDVB10) (SP-XDVB10)
(SP-WDVB10)
(SP-XSDVB10)
MAIN
MAIN SUBWOOFER
REAR REAR
CENTER
SUBWOOFER

MX-DVB10
1-2
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 ( ) 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 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.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.
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
!
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 ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.
(This regulation does not correspond to J and C version.)

MX-DVB10
1-3
Preventing static electricity
1. Grounding to prevent damage by 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.
2. About the earth processing for the destruction prevention by static electricity
In the equipment which uses optical pick-up (laser diode), optical pick-up is destroyed by the static electricity of
the work environment.
Be careful to use proper grounding in the area where repairs are being performed.
2-1 Ground the workbench
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.
2-2 Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
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.
4. 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.
Conductive material
(conductive sheet) or iron plate
(caption)
Anti-static wrist strap

MX-DVB10
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.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.
5. 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:
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.
When you remove the traverse mechanism from the servo control substrate
The laser diode of pick-up might be destroyed by static electricity and set switch (S11) on the pick-up board
on "SHORT" side, please before removing the card wire from connector (CN10).
Moreover, please set switch (S11) on "OPEN" side after assembling and inserting the card wire in
connector (CN10) without fail at times.
When you remove the pick-up from the traverse mechanism
The laser diode of the pick-up might be destroyed by static electricity. Before extracting
the flexible wire from connector (CN12), please solder point A as shown below.
Moreover, please remove solder in point Aafter inserting a flexible wire in connector (CN12).
CN12
CN10
Soldering points A
Traverse
mechanism
Traverse
mechanism
Pick-up
OPEN
SHORT
SWITCH S11

MX-DVB10
1-5
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 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 herein may result in
hazardous radiation exposure.
VARNING : Osynlig laserstrålning är denna del är öppnad
och spårren är urkopplad. Betrakta ej strålen.
VARO : Avattaessa ja suojalukitus ohitettaessa olet
alttiina näkymättömälle lasersäteilylle.Älä katso
säteeseen.
ADVARSEL : Usynlig laserstråling ved åbning , når
sikkerhedsafbrydere er ude af funktion. Undgå
udsættelse for stråling.
ADVARSEL : Usynlig laserstråling ved åpning,når
sikkerhetsbryteren er avslott. unngå utsettelse
for stråling.
REPRODUCTION AND POSITION OF LABELS
WARNING LABEL
!CAUTION Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
DANGER : Invisibie laser radiation
when open and interlock or
defeated.
AVOID DIRECT EXPOSURE TO
BEAM (e)
VARNING : Osynlig laserstrålning
är denna del är öppnad och spårren
är
urkopplad. Betrakta ej strålen.
(s)
VARO : Avattaessa ja suojalukitus
ohitettaessa olet alttiina
näkymättömälle lasersäteilylle.Älä
katso säteeseen. (d)
ADVARSEL :Usynlig laserstråling
ved åbning , når
sikkerhedsafbrydere er ude af
funktion. Undgåudsættelse for
stråling. (f)
CLASS 1
LASER PRODUCT

MX-DVB10
1-6
Remove the six screws marked Aon the back of the
body.
Remove the two screws marked Bon both sides of
the body.
Remove the metal cover from the body by lifting the
rear part of the cover.
1.
2.
3.
Disassembly method
<Main body>
Removing the metal cover
(See Fig.1 to 3)
Do not break the front panel tab fitted to
the metal cover.
CAUTION:
Prior to performing the following procedures, remove
the metal cover.
Disconnect the card wire from connector CN1 on the
tuner board.
Remove the plastic rivet fixing the tuner board.
Remove the two screws marked Con the back of the
body.
1.
2.
3.
Removing the tuner board (See Fig.4)
Fig.1
Fig.2
Fig.3
A
AA
Metal cover
Metal cover
B
Metal cover
B
Fig.4
DVD changer mechanism assembly
CN1
Front panel
assembly
Plastic rivet
Rear panel
C
Tuner board

MX-DVB10
1-7
Prior to performing the following procedures, remove
the metal cover and the tuner board.
Disconnect the card wire from the connectors
CN540, CN541 and CN542 on the main board.
Remove the two screws marked Don the upper side
of the body and two screws marked Fon the back of
rear panel.
Remove the plastic rivet attaching the main board.
Pull both the rear panel and the front panel assembly
to the outside, then remove the DVD changer
mechanism assembly by lifting the rear part of the
assembly.
1.
2.
3.
4.
Removing the DVD changer mechanism
assembly (See Fig.5 to 6)
To prevent damage to the DVD fitting,
be sure to pull both the rear panel and
the front panel assembly enough to
remove the DVD changer mechanism
assembly.
CAUTION:
Fig.5
Fig.6
Front panel assembly
D
D
DVD changer
mechanism
assembly
Rear panel
CN542
DVD changer mechanism assembly
F
Front panel assembly
Plastic rivet
Rear panel
CN541
CN540
Main board
Main board

MX-DVB10
1-8
Prior to performing the following procedures, remove
the metal cover, the tuner board and the DVD
changer mechanism assembly.
Remove the plastic rivet attaching the main board.
Disconnect the card wires from the connector
CN500, CN505 and CN510 on the main board
respectively.
Remove the tie band and disconnect the wire from
the connector CN513 on the main board.
Disconnect the wire from the connector CN220 on
the transformer board.
Remove the two screws marked Gon the bottom of
the body.
Release the two joints marked aon the lower right
and left sides of the body using a screwdriver, and
remove the front panel assembly toward the front.
1.
2.
3.
4.
5.
6.
Removing the front panel assembly
(See Fig.7 to 11)
Fig.9
Fig.10
Fig.11
G
(Bottom)
Front panel assembly
Joint a
Joint aFront panel assembly
Front panel assembly
Fig.7
Fig.8
Tie band
CN500
CN505
CN510
Transformer board
CN220
Front panel
assembly
Front panel assembly Main board
Plastic rivet
CN513 Main board

MX-DVB10
1-9
Prior to performing the following procedures, remove
the metal cover, the tuner board and the DVD
changer mechanism assembly.
Remove the screw marked Hattaching the rear
cover on the back of the body.
Push each tab of the four joints marked bin the
direction of the arrow and release.
Remove the seventeen screws marked Iattaching
the rear panel.
Release the joints marked con each lower side of
the rear panel using a screwdriver and remove the
rear panel backward.
1.
2.
3.
4.
Removing the rear cover / rear panel
(See Fig.12 to 15)
Prior to performing the following procedures, remove
the metal cover, the tuner board the DVD changer
mechanism assembly and rear panel.
Move the power cord stopper upward and pull out it
from the base chassis.
Disconnect the power cord from connector CN250
on the power supply board.
Remove the tie band from the power supply board.
1.
2.
3.
Fig.12
Fig.13
Fig.14
Fig.15
Rear panel
H
Joint b
Joint b
Rear cover
Rear panel
I
II
Joint c
Joint cRear panel Rear panel
I
Removing the power cord (See Fig.16)
Fig.16
Front panel assembly
Tie band
Power supply
board
Power cord
Power cord
stopper
CN250

MX-DVB10
1-10
Prior to performing the following procedures, remove
the metal cover, the tuner board, the DVD changer
mechanism assembly, the p
ower supply board and
the rear panel.
Removing the amplifier board (1, 2), AV
output board & speaker terminal board
(See Fig.18 to 21)
Remove the tie band marked battaching the wire to
the AV output board.
Disconnect the card wire from the connector CN513
on the main board.
Disconnect the connector CN521 on the main board.
Disconnect the card wire from the connector CN703
on the amplifier board (2).
Disconnect the connectors CN205 and CN206 on
the amplifier board (1, 2) from the regulator board
(The heat sink and heat sink bracket will be
detached at once).
Disconnect the connector CN207 on the speaker
terminal board from the regulator board.
1.
2.
3.
4.
5.
6.
Prior to performing the following procedures, remove
the metal cover, the tuner board, the DVD changer
mechanism assembly, the rear panel and the power
cord.
Removing the power supply board
(See Fig.17)
Remove the tie band marked aattaching the p ower
supply
board.
Disconnect the connector CN218 and CN219 on the
p
ower supply board .
Disconnect the connector CN203 on the p
ower supply
board
from the regulator board.
1.
2.
3. Fig.17
Fig.18
Fig.20
Front panel assembly
Tie band a
Amplifier board (1)
CN206
Regulator
board
Speaker terminal
board
Fig.19
CN203
Power supply
board
CN205
CN206
Fig.21
AV output
board
Tie band b
CN513
CN521
CN205
Heat sink
Main board
Power cord
CN219
CN218
Main board
Amp. board (1)
Amp. board (2)
AV output
board
Main board
CN207
CN703

MX-DVB10
1-11
Prior to performing the following procedures, remove
the metal cover, the tuner board, the DVD changer
mechanism assembly, the rear panel, the amplifier
board (1,2) and the power supply board.
Disconnect the connector CN705, CN372 and
CN373 on the amplifier board (1, 2).
Remove the two screws marked Jattaching the AV
output board to the fan bracket.
Pull out the fan bracket from the
AV output board.
Prior to performing the following procedures, remove
the metal cover, the tuner board, the power supply
board, the DVD changer mechanism, assembly the
rear panel, the tuner board, the amplifier board (1,2)
and AV output board.
Remove the eight screws marked K attaching the
ICs on the heat sink.
1.
Removing the Heat sink (See Fig.24)
Prior to performing the following procedures, remove
the metal cover, the tuner board, the DVD changer
mechanism assembly, the rear panel, the tuner
board, the AV output board, the amplifier board (1,2),
the power supply board and the heat sink.
Unsolder the ICs s
older points .
Remove the ICs.
1.
2.
Removing the ICs (See Fig.25)
1.
2.
3.
Removing the AV output board
(See Fig.22, 23)
Fig.22
Fig.23
Fig.24
CN705
Fan
AV output board
Hook
AV output board
J
CN373
CN372
Heat sink
Heat sink
K
K
Fig.25
Solder points
Solder points
Amp. board (1, 2)
Fan bracket
amplifier
board (1) amplifier
board (2)

MX-DVB10
1-12
Prior to performing the following procedures, remove
the metal cover, the tuner board, the DVD changer
mechanism assembly, the rear panel, the power
supply board, the amplifier board (1, 2), the main
board, the speaker terminal board and AV output
board.
Disconnect the wire from connector CN204 on the
regulator board.
Remove the two screws marked N attaching the
regulator board.
Remove the four screws marked Mattaching the
transformer.
1.
2.
3.
Removing the regulator board / power
transformer assembly
(See Fig.28)
Prior to performing the following procedures, remove
the metal cover, the tuner board, the DVD changer
mechanism assembly, the rear panel, the power
supply board, the amplifier board and AV output
board.
Disconnect the card wires from the connector
CN500, CN505 and CN510 on the main board.
Disconnect the flat wires from the connector CN220
on the transformer board.
Disconnect the connector CN530 and CN531 on the
main board from the regulator board.
Remove the screw marked L attaching the main
board on the right side of the body.
1.
2.
3.
4.
Removing the main board
(See Fig.26, 27)
Fig.26
Fig.27
Fig.28
Power
transformer
assembly
Regulator
board
CN204 Transformer
board
M
M
N
Regulator board
Plastic
holder
Plastic rivet Main board
Front panel assembly
L
CN531
CN530
Regulator board
Front panel
assembly
Hook
CN500
CN505
CN510
CN220
Main board
Transformer
board

MX-DVB10
1-13
<Front panel assembly>
Prior to performing the following procedures, remove
the metal cover, the DVD changer mechanism
assembly and front panel assembly.
Fig.29
Head amplifier
& mechanism control board
CN306
O
O
O
O
O
Cassette mechanism
assembly
Fig.30
Fig.31
Fig.32
P
P
Display & system control board Stay bracket
QQ
Q
Q
CN881
FW915
(Solders)
Q
Display & system control board
FW915
FW915
DVD eject board
CN870
Display & system
control board
CN870
CN316
Removing the display & system control
board (See Fig.30 to 32)
Remove the four screws marked Pattaching the
stay bracket.
Remove the seven screws marked Qattaching the
d
isplay & system control board .
Disconnect the card wires from the connector
CN316 and CN881 on the display & system control
board.
Disconnect the connector CN870 on the display &
system control board
from the p reset / tuning switch
board .
If necessary, disconnect the wire from the
connector CN870 on the front side of the display &
system control board and unsolder FW915.
1.
2.
3.
4.
5.
Removing the cassette mechanism
assembly (See Fig.29)
Disconnect the card wire from the connector
CN306 on the head amplifier & mechanism control
board.
Remove the seven screws marked O attaching the
cassette mechanism assembly.
1.
2.

MX-DVB10
1-14
Prior to performing the following procedures, remove
the display & system control board.
Removing the operation switch board
(See Fig.35, 36)
DVD eject board
FW915
(Soldered)
R
R
Fig.33
Fig.34
Fig.35
Preset / tuning switch board
S
S
Volume knob Nut
SUBWOOFER
level knob
SOUND MODE knob
PRESET knob
FW901
(Soldered)
Operation switch board
Mic level knob
Fig.36
T
T
T
T
T
T
T
Joint g
Joint g
Joint g
Joints g
Joints g
Operation
switch board
T
Removing the DVD eject board
(See Fig.33)
Remove the three screws marked R attaching the
DVD eject board.
If necessary, unsolder FW915 on the DVD eject
board.
1.
2.
Pull out the PRESET knob on the front panel.
Remove the five screws marked Sattaching the
preset / tuning switch board.
If necessary, unsolder FW901 on the preset / tuning
switch board.
1.
2.
3.
Removing the preset / tuning switch
board
(See Fig.34, 35)
Prior to performing the following procedures,
remove the display & system control board and
the preset / tuning switch board.
Pull out the volume knob on the front panel and
remove the nut. Pull out the SOUND MODE knob
and the SUBWOOFER level knob toward the front.
Pull out the mic level knob toward the front.
Remove the twelve screws marked Tattaching the
operation switch board.
Release each tab of the seven joints marked g
retaining the operation switch board.
1.
2.
3.

MX-DVB10
1-15
Remove the four screws marked Aon the front of the
body.
Remove the front cover from the four holders marked
athat are fixing the front cover.
Pull out the front cover toward the front while
disengaging the four joints marked a.
1.
2.
3.
< Main Speaker >
Removing the front cover (See Fig.1, 2)
Prior to performing the following procedures, remove
the front cover.
Remove the two screws marked Bon the front
cover.
Disconnect the yellow and black wires from the
speaker terminals on the squawker.
1.
2.
Removing the squawker (See Fig.2)
Prior to performing the following procedures, remove
the front cover.
Remove the four screws marked C.
Remove the woofer and disconnect the yellow and
black wires from the speaker terminals.
Remove the squawker and disconnect the yellow
and black wires from the speaker terminals.
1.
2.
3.
Removing the woofer (See Fig.2)
Because it is difficult to take away the cover,
insert a minus driver, etc. in the place between
the main body and the front cover as shown in
Fig.1 before removing the front cover. Exercise
care not to damage the main body and the front
cover when inserting the minus driver. For this
purpose, insert the minus driver together with
cloth and the like.
Note:
Fig.1
Fig.2
AA
A
A
Front cover
B
Squawker
C
Joints a
Joints a
C
Front cover
Tweeter
Woofer
Holder a
Joints a
Holder a
Joints a

MX-DVB10
1-16
Prior to performing the following procedures, remove
the front cover.
Remove the four screws marked Eon the front of the
body.
Pull out the subwoofer speaker toward the front and
disconnect the wire (red and black) from the
speaker terminals.
1.
2.
Removing the subwoofer
(See Fig.4)
Removing the front net (See Fig.5, 6 )
Remove the four screws Don the front of the body.
Remove the front cover from the four holders marked
bthat are fixing the front cover.
Pull out the front cover toward the front while
disengaging the four joints marked b.
Removing the front cover (See Fig.3, 4)
1.
2.
3.
Because it is difficult to take away the cover,
insert a minus driver, etc. in the place between
the main body and the front cover as shown in
Fig.1 before removing the front cover. Exercise
care not to damage the main body and the front
cover when inserting the minus driver. For this
purpose, insert the minus driver together with
cloth and the like.
Note:
Remove the front net from the four holders marked c
that are fixing the front net.
Pull out the front net toward the front while
disengaging the four joints marked c.
1.
2.
Note:When it is hard to remove the front net, insert a
minus driver, etc. in the place between the front
net and the front cover as shown in Fig.5 before
removing the front cover. Exercise care not to
damage the main body and the front cover
when inserting the minus driver. For this
purpose, insert the minus driver together with
cloth and the like. Holder cHolder c
< Subwoofer >
< Center speaker >
Removing the center speaker (See Fig.6 )
Remove the four screws marked Fon the front of the
body.
Pull out the center speaker toward the front and
disconnect the wire (black and black with white line)
from the speaker terminals.
1.
2.
Fig.4
Fig.5
Fig.6
Subwoofer
E
Center speaker
Front net
F
Joints b
Joints b
Front cover
Fig.3
Front cover
DD
D
D
E
F
Front cover
Joints cJoints c
Holder b
Holder b

MX-DVB10
1-17
DVD Changer Mechanism
Removing the DVD Servo control
board (See Fig.1)
1.
2.
3.
4.
5.
Remove the metal cover.
Remove the DVD changer mechanism assembly.
From bottom side the DVD changer mechanism
assembly, remove the one screw 1retaining the DVD
servo control board.
Disconnect the card wire, from the connector CN101,
on the DVD servo control board.
Disengage the two engagements "A", remove the DVD
servo control board.
Removing the DVD tray assembly
(See Fig.2~4)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Remove the front panel assembly.
Remove the DVD changer mechanism assembly.
Remove the DVD servo control board.
Remove the screw 2retaining the disc stopper.
(See Fig.3)
Remove the three screws 3retaining the T. bracket.
(See Fig.3)
From the T.bracket section and clamper base section
"B", remove the edges fixing the rod.
(See Fig.2)
Remove the screw 4retaining the clamper assembly.
(See Fig.3)
From the blacket section "C", remove the clamper ass'y.
(See Fig.3)
From the left side face of the chassis assembly, remove
the one screw 5 retaining both of the return spring and
lock lever. (See Fig. 4)
By removing the pawl at the section "D" fixing the return
spring, dismount the return spring. (See Fig.4)
Remove the three lock levers. (See Fig.4)
Fig.1
Fig.2
Fig.3 Fig.4
1
DVD servo control board
CN101
AA
B
Rod
T. Bracket
Clamper base
2
3
3
4
3
T. Bracket Disc stopper
Rod stopper
(C/J version only)
Clamper ass'y
C
D
Lock lever
Return spring
5

MX-DVB10
1-18
11.
12.
Check whether the lifter unit stopper has been caught
into the hole at the section "E" of DVD tray assembly
as shown in Fig.5.
Make sure that the driver unit elevator is positioned as
shown in Fig.6 from to the second or fifth hole on the
left side face of the DVD Traverse mechanism
assembly.
Fig.5
Fig.7Fig.6
Fig.8 Fig.9
[Caution] In case the driver unit elevator is not at above
position, set the elevator to the position as
shown in Fig.7 by manually turning the pulley
gear as shown in Fig.8.
13.
14.
15.
Manually turn the motor pulley in the clockwise
direction until the lifter unit stopper is lowered from the
section "E" of DVD tray assembly (See Fig.8).
Pull out all of the three stages of DVD tray assembly in
the arrow direction "F" until these stages stop
(See Fig.6).
At the position where the DVD tray assembly has stop
end, pull out the DVD tray assembly while pressing the
two pawls "G and G' " on the back side of DVD tray
assembly (See Fig.9).In this case, it is easy to pull out
the assembly when it is pulled out first from the stage
DVD tray assembly.
DVD tray
assembly
E
Drive unit of elevator
DVD tray assembly
F
Refer to Fig.7 Pawl
Chassis assembly
Pulley gear
Motor pulley
Pawl ,
DVD tray assembly
Stopper
G
G G'

MX-DVB10
1-19
Removing the DVD mechanism
assembly (See Fig.10)
1.
2.
While turning the cams R1 and R2 assembly in the
arrow direction "H" .align the shaft "I" of the DVD
mechanism assembly to the position shown in Fig.10.
Remove the four screw 6 retaining the DVD
mechanism assembly.
Removing the DVD mechanism
(See Fig.11, 12 )
1.
2.
For dismounting only the DVD mechanism without
removing the DVD mechanism assembly, align the shaft
"J" of the DVD mechanism assembly to the position
shown Fig.11 while turning the cam R1 and R2
assembly in the arrow direction "K" .
By raising the DVD mechanism assembly in the arrow
direction "L" , remove the assembly from the lifter unit
(See Fig.12).
Fig.10
Fig.12
Fig.11
6
Cams R1, R2 assembly
I
DVD mechanism assembly
6
H
Arrow
6
6
Lifter unit
DVD mechanism
L
Arrow
Cam R1, R2 assembly
K
Arrow
J
10

MX-DVB10
1-20
Removing the actuator motor board
(See Fig.14, 15)
1.
2.
3.
Absorb the four soldered positions "M" of the right and
left motors with a soldering absorber (See Fig.14).
Remove the two screws 7 retaining the actuator motor
board (See Fig.14).
Remove the two screws 8 retaining the tray select
switch board (See Fig.15).
Removing the cam unit
(See Fig.15~18 )
1.
2.
3.
4.
5.
Remove the DVD mechanism assembly.
While turning the cam gear L, align the pawl "N"
position of the drive unit to the notch position (Fig.15)
on the cam gear L.
Pull out the drive unit and cylinder gear (See Fig.17).
While turning the cam gear L, align the pawl "O"
position of the select lever to the notch position (Fig.18)
on the cam gear L.
Remove the four screws 9 retaining the cam unit (cam
gear L and cams R1/R2 assembly) (See Fig.18).
Fig.14
Fig.16
Fig.15
Fig.18
Fig.17
7
Motor L Motor R
MM
7
Actuator motor board
Cam gear L
Drive unit
N
Chassis assembly
Tray select
switch board
CN802
CN801
CN804
8
9
Select lever
Cams R1, R2 assembly
9
9
Cam unit
Cam gear L
Cylinder gear
Drive unit
O