CD / DVD Mechanism is exchanged by a unit (contain CPC cords).
Contents
Safety Precautions
Important for laser products
Preventing static electricity
Importance administering
point on the safety
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
1-2
1-3
1-4
1-5
Disassembly method
Wiring connection
Adjustment method
Troubleshooting
Description of major ICs
1-6
1-18
1-19
1-23
1-26~39
No.21032
Sep. 2001
Page 2
MX-DVA5
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 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.
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 meausre 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 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 ( ) 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
Page 3
Important for laser products
MX-DVA5
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.
Reproduction and position of labels
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.
CAUTION
!
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
CLASS 1
LASER PRODUCT
WARNING LABEL
1-3
Page 4
MX-DVA5
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.
(caption)
Anti-static wrist strap
Conductive material
(conductive sheet) or iron plate
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.
CD / DVD changer unit
Attention when traverse unit is decomposed
Because the CD / DVD mechanism assembly of this model is a
unit component, the individual component parts consisting of
the CD / DVD mechanism assembly are not supplied
separately.
If you need to decompose the traverse unit, short-circuit the
connector of the flexible board by using a metal clip and the like
prior to decomposing the traverse unit.
Soldering
points
Fig.2
Fig.1
Card wire
CD / DVD
holder
mechanism
Pickup unit
connector
1-4
Page 5
Importance administering point on the safety
MX-DVA5
Primary part
Secondary parts
F101
F102
F103
F001
F104
Caution: For continued protection against risk of
fire, replace only with same type 5A/125V for
F001, 4A/125V for F101,F102,F103, and F104.
This symbol specifies type of fast operating fuse.
Precaution: Pour eviter risques de feux, remplacez
le fusible de surete de F001 comme le meme type
que 5A/125V, et 4A/125V pour F101,F102,F103,
et F104.
Ce sont des fusibles suretes qui functionnes rapide.
^
1-5
Page 6
MX-DVA5
Disassembly method
<Main body>
Removing the metal cover
(See Fig.1 and 2)
1.
Remove the three screws A attaching the metal
cover on the back of the body.
2.
Remove the six screws B attaching the metal cover
on both sides of the body.
3.
Remove the metal cover from the body by lifting the
rear part of the cover.
ATTENTION:
Do not break the front panel tab fitted
to the metal cover.
A
A
Fig.1
Metal cover
Metal cover
A
B
Removing the CD / DVD changer unit
(See Fig.3 to 6)
Prior to performing the following procedure, remove
the metal cover.
1.
Disconnect the card wire which is attached with
adhesive to the left side of the CD / DVD changer
unit.
2.
Disconnect the harness from connector
ACW1,DCW4 and VCW1 of the CD / DVD servo
board on the back of the CD / DVD changer unit.
3.
Disconnect the harness from connector LCW2 and
LCW6 on the DVD power board.
4.
Disconnect the card wire from connector UCW3 on
the FL dispaly & System control board.
5.
Remove the two screws C attaching the CD / DVD
changer unit on the back of the body.
6.
Remove the two screws D attaching the CD / DVD
changer unit on the both side of the body.
CD / DVD
servo
board
Front panel
assembly
B
DCW4 / VCW1
Fig.2
CD / DVD changer unit
ACW1
Rear panel
DVD power
board
LCW6
LCW2
7.
Draw the CD / DVD changer unit upward from
behind while pulling the rear panel outward.
1-6
Fig.3
Page 7
FL dispaly & system
control board
UCW3
Front panel
assembly
MX-DVA5
C
Fig.4
Adhesive card wire strap
CD / DVD changer unit
Rear panel
Fig.6a
Front panel assembly
Removing the front panel assembly
(See Fig.7 to 9 )
Prior to performing the following procedure, remove
the metal cover and the CD / DVD changer unit.
1.
Disconnect the card wire from connector FCW3 and
the harness from connector JCW1, JCW2 and
HCW3 on the inner side of the main board in the
body.
D
Rear panel
CD / DVD changer unit
D
Front panel assembly
Fig.6b
FCW3
Fig.5
Rear panel
Main board
JCW2
JCW1
2.
Remove the two screws E attaching the front panel
assembly on both sides of the body.
3.
Remove the screw F attaching the earth terminal
extending from the cassette mechanism assembly.
4.
Remove the screw G attaching the front panel
assembly and main board.
5.
Remove the screw H attaching the front panel
assembly on the bottom of the body.
6.
Release the two joints a on both sides and two joints
b on the bottom of the body using a screwdriver.
Joint a
E
earth wire
HCW3
F
Fig.7
1-7
Page 8
MX-DVA5
Front panel assembly
Main board
G
E
Fig.8
Joint c
Removing the heat sink, amp. board and
DVD power board (See Fig.10 to 12)
Prior to performing the following procedure, remove
the metal cover and the CD / DVD changer unit.
1.
Remove the four screws I attaching the heat sink
cover on the back of the body. Remove the heat sink
cover.
Bottom side
I
Joint b
H
Fig.9
Joint b
2.
Remove the four screws J attaching the heat sink,
amp. board and DVD power board to the rear panel
on the back of the body.
3.
Remove the two screws K attaching the speaker
terminal to the rear panel on the back of the body.
4.
Disconnect the card wire from connector ACW1 and
the harness from connector ACW2 on the amp.
board.
5.
Disconnect the harness from connector LCW5 and
LCW4 on the DVD power board.
6.
After moving the heat sink upward, remove the
claws. Then pull out the heat sink, amp. board and
DVD power board inward.
Rear panel
DVD power board
Heat sink
cover
Rear panel
J
Heat sink
I
Fig.10
Tuner terminal
L
K
1-8
LCW5
ACW2
ACW1
Fig.12
LCW4
Amp. board
J
Speaker terminal
Fig.11
Page 9
Removing the tuner board
(See Fig.11 and 13)
Prior to performing the following procedure, remove
the metal cover and CD / DVD changer unit.
MX-DVA5
Rear
panel
1.
Disconnect the card wire from connector CON01 on
the tuner board.
2.
Remove the two screws L attaching the tuner board.
Removing the rear panel (See Fig.14)
Prior to performing the following procedure, remove
the metal cover, CD / DVD changer unit, heat sink &
Amp. board and tuner board.
1.
Remove the three screws N and five screws M
attaching the rear panel.
CON01
Main board
Tuner board
Fig.13
Rear
panel
M
Removing the main Board
(See Fig. 15)
Prior to performing the following procedure, remove
the metal cover, CD / DVD changer unit, heat sink &
Amp. board tuner board and rear panel.
1.
Disconnect the card wire from connector FCW3 and
the harness from connector JCW1, JCW2, and
HCW3 on the main board.
2.
Disconnect the harness from connector PCW1 on
the power transformer board.
3.
Remove the screw G attaching the main board
holder. (See Fig.8)
4.
Remove the two screws O attaching the heat sink
and bottom chassis.
FCW3
JCW2
PCW1
Fig.14
JCW1
HCW3
Power transformer board
N
Main board
O
Fig.15
1-9
Page 10
MX-DVA5
Removing the power ICs and DVD power
board (See Fig.16 to 18)
Prior to performing the following procedure, remove
the metal cover, CD / DVD changer unit, heat sink,
amp. board and DVD power board.
1.
Remove the four screws P attaching the power ICs
to the heat sink.
2.
Unsolder the power ICs solder point.
3.
Remove the three screws Q and three screws R
attaching the DVD power board to the heat sink.
Heat sink
R
Amp. board
Heat sink
DVD power board
Power ICs solder point
Q
P
Fig.16
Amp. board
Fig.18
DVD power board
Removing the power transformer
(See Fig .19)
Prior to performing the following procedure, remove
the metal cover, CD / DVD changer unit, heat sink &
Amp. board, tuner board and rear panel.
1.
Disconnect the power cord from connector RCW2 of
the power transformer board.
2.
Disconnect the harness from connector PCW1 of the
power transformer board.
3.
Remove the four screws S attaching the power
transformer.
Power transformer
S
Power cord
Fig.17
Heat sink
PCW1
S
RCW2
1-10
Fig.19
Page 11
MX-DVA5
<Front panel assembly>
Prior to performing the following procedure, remove
the metal cover, the CD / DVD changer unit and the
front panel assembly.
Removing the power / DVD switch board
(See Fig.20)
1.
Disconnect the card wire from connector UCW1 of
the power / DVD switch board.
2.
Remove the five screws T attaching the power / DVD
switch board and release the tab c outward.
Removing the FL display & System
control board (See Fig.20)
1.
Disconnect the card wire from the connector UCW3,
UCW4,UCW5 and UCW6 on the FL display &
System control board.
2.
Remove the five screws U attaching the FL display &
System board.
3.
Disconnect the card wire from the connector UCW2
on the FL display & System control board.
Power / DVD switch board
UCW2
UCW3
UCW4
U
Fig.20
Front board
V
Tab d
V
UCW1
T
Tab c
U
FL diplay & System
control board
U
UCW5
UCW6
V
Headphone
board
V
Removing the headphone board
(See Fig.21)
Prior to performing the following procedure remove
the FL display & System control board.
1.
You can pull out the headphone board.
Removing the front board
(See Fig. 21 and 22)
Prior to performing the following procedure, remove
the FL display & System control board.
1.
Pull out the volume knob, subwoofer level knob and
sound mode nob from front side.
2.
Remove the eleven screws V attaching the front
board and release the two tabs d outward.
Removing the cassette mechanism
assembly (See Fig.21)
W
Card wire e
Cassette mechanism assembly
Fig.21
SOUND MODE
knob
SUBWOOFER
LEVEL knob
VOLUME knob
1.
Disconnect the card wire e from the mechanism
board on the cassette mechanism assembly.
2.
Remove the six screws W attaching the cassette
mechanism assembly.
Fig.22
1-11
Page 12
MX-DVA5
<CD / DVD changer unit>
Prior to performing the following procedure, remove
the CD / DVD changer unit.
Removing the CD / DVD tray
(See Fig.1 to 3)
1.
Disconnect the card wire from connector RCW1 of
the CD /DVD servo board.
2.
Turn the black loading pulley gear on the under side
of the CD / DVD changer unit in the direction of the
arrow and draw the CD / DVD tray toward the front
until it stops.
3.
Disconnect the card wire from connector DCW1 of
the CD / DVD servo board on the upper side of the
CD / DVD changer unit.
4.
Push down the two tray stoppers marked a and pull
out the CD / DVD tray.
CD / DVD tray
Loading pulley
gear
CD / DVD
servo board
RCW1
Fig.1
CD / DVD tray
Reinstall the CD / DVD tray
(See Fig.4 and 5)
1.
Align the gear-cam with the gear-tray as shown fig.3,
then mount the CD / DVD tray.
2.
When assembling the CD / DVD tray, take extreme
care not engage with gear - synchro.
Gear-cam
Gear-tray
Gear-convert
Gear-cam
timing point
CD / DVD tray
(Tray stopper)
Fig.2
a (Tray stopper)
a
CD / DVD
servo board
DCW1
Fig.3
Gear-synchro
Gear-convert
1-12
Gear-tray
Gear-tray
CD / DVD tray
Fig.4Fig.5
Page 13
Removing the sensor board, the LED
board and the turn table motor assembly
(See Fig.6 to 9)
MX-DVA5
LED board
B
Prior to performing the following procedure, remove
the CD / DVD tray.
1.
Remove the screw A attaching the LED board and
release the screws B attaching the bracket.
2.
Remove the screw C attaching the sensor board and
release the two tabs b attaching the sensor board on
the under side of the CD / DVD tray.
3.
Disconnect the harness from connector on the
sensor board and release the harness from the two
hooks c. Remove the sensor board.
4.
Remove the screw D attaching the turn table. Detach
the turn table from the tray.
5.
Pull outward the tab marked d attaching the turn
table motor assembly on the upper side of the tray
and detach the turn table motor assembly from the
tray.
Turn table
A
Tab c
Fig.6
C
Tab b
Connector
Tab b
Sensor board
Fig.7
Tray
Fig.8
D
Removing the belt, and the motor
(See Fig.10)
Prior to performing the following procedure, remove
the CD / DVD tray.
1.
Detach the belt from the pulley on the upper side of
the CD / DVD changer unit (Do not stain the belt with
grease).
Turn table motor assembly
Fig.9
Tab d
D
Motor
Belt
2.
Remove the two screws D attaching the motor.
CD / DVD changer unit
Fig.10
1-13
Page 14
MX-DVA5
Removing the CD / DVD servo board
(See Fig. 12)
Prior to performing the following procedure, remove
the CD / DVD tray, the two screws attaching the
motor and detach the belt from the pulley.
1.
Unsolder points the motor terminal.
2.
Disconnect the card wire from the connector RCW1
on the CD / DVD servo board.
3.
Disconnect the motor board wire from the motor
board connector on the motor board.
4.
Remove the three screws D attaching the CD / DVD
servo board.
Removing the CD / DVD mechanism
holder assembly (mechanism included)
(See Fig.12 to 14)
1.
Disconnect the motor wire from connector on the
motor board in the CD / DVD mechanism holder
assembly on the under side of the CD / DVD
changer unit.
2.
Disconnect the card wire from connector on the
pickup unit in the CD / DVD mechanism holder
assembly.
RCW1
Motor board
CD / DVD mechanism
D
holder assembly
CD / DVD servo board
Solder
points
Motor board
connector
Fig.11
Motor board
3.
Remove the screw E attaching the shaft on the right
side of the CD / DVD mechanism holder assembly.
4.
Pull outward the stopper fixing the shaft on the left
side and remove the CD / DVD mechanism holder
assembly from behind in the direction of the arrow .
5.
Pull out the CD / DVD mechanism holder assembly.
CD/ DVD changer unit
CD / DVD mechanism holder assembly
Fig.13
Stopper
E
Connecter
Fig.12
CD / DVD mechanism holder assembly
Fig.14
1-14
Page 15
MX-DVA5
<Cassette mechanism section>
Removing the record/playback mechanism.
Removing the R/P head.
1.
Remove the screw A on the right side of the
R/P head.(Fig.1)
2.
Remove the screw B on the left side of the
R/P head.(Fig.1)
Removing the pinch roller.
1.
Pull out the pinch roller by opening the pinch
roller stopper outward to unlock .(Fig.2)
2.
When reassembling the pinch roller, refer to
fig. 3 to hook up the spring.
R/P Head
Pinch roller
Fig.1
AB
Pinch roller
assembly
Pinch roller
stopper
Stopper
Return spring
Return spring
Fig.2
Pinch roller
Return spring
Fig.3
Pinch roller
spring
1-15
Page 16
MX-DVA5
Removing the motor.
1.
Remove the two screws C fixing the motor.
Be careful to grease's splash when the
drive belt comes off.(Fig.4, Fig.5)
2.
Unsolder the motor terminal.(Fig.4)
Removing the mechanism board.
Unsolder the four parts a on the solenoid
1.
coil terminal.(Fig.4)
Remove the two screws D fixing the board.(Fig.4)
2.
Unhook the three parts b from the board.(Fig.4)
3.
Remove the mechanism board.(Fig.4)
4.
Mecha.
a
Drive belt (Flat)
board
D
b
Motor
Motor
terminal
C
C
Fig.4
D
Drive belt
Motor
b
a
Removing the flywheel.
Remove the cut-washers at c and d from the
capstan shaft, then remove the flywheel.
When reassembling the flywheel,
be sure to use new washers as they
cannot be reused. (Fig.7, Fig.8)
Capstan
washer
Drive belt
Fig.5
Capstan
washer
Fig.6
c
Sleeve
d
1-16
Flywheel
FR belt
Fig.7
Flywheel
Sleeve
Flywheel
Washer
FR belt
Fig.8
Page 17
< Speaker section >
MX-DVA5
Removing the side panel (See Fig. 1)
1.
Remove the five screws A and B attaching the side
panel, then remove the side panel.
Removing the side speaker
(See Fig. 2 and 3)
B
Side panel
A
B
Fig.1
Side speaker
C
Front panel
Prior to performing the following procedure, remove
the side panel.
1.
Remove the fore screws C attaching the side
speaker.
2.
Pull out the side speaker and remove the speaker
cord from the speaker terminal.
C
Fig.2
Side speaker
Speaker terminal
Fig.3
1-17
Page 18
MX-DVA5
Wiring connection
Amp board
3711-001167
3809-000492
3809-001228
ACW2
3809-001224
CD key switch board
UCW1
3711-000820
ACW3
ACW1
3708-001094
UCW7
0
9
3809-001185
MIC board
3708-000181
Front key switch board
2
0
AH39-20008M
MCW3
AH39-00254A
AH39-00244A
AH39-00248A
MCW2
3711-000190
0
9
0
3711-003112
3708-000178
UCW2
UCW3
3708-001212
Front / Display board
RCW2
RFS3
RFS5
RFS6
RFS7
PCW1
UCW4
3708-000451
3708-001488
UCW5
3708-000492
RFS4
RFS8
UCW6
RFS2
Power transformer
Motor board
board
Roller
CD/DVD tray
AH39-00096C
3809-001185
AH39-00097A
Pickup unit
3809-001225
Color codes are shown below.
1 Brown
2Red
3Orange
4Yellow
5Green
6Blue
9
0
7Violet
8Gray
9White
0Black
2
9
0
8
0
2
9
9
0
2
9
8
0
0
8
9
9
0
DCW1
ACW3
AH39-00097A
LCW4
LCW5
3711-000988
LCW2
LCW6
3711-000988
0
PCW1
3711-001095
LCW1
2
MCW1
ACW1
CD/DVD board
VCW1
DCW4
DVD Power board
9
0
2
0
9
9
2
0
8
0
9
2
2
0
9
1-18
3809-001237
3809-001222
CW302
Voice board
CW301
Tuner board
CON1
3710-000209
9
0
2
2
9
0
FCW1
3708-000122
OCW
3711-000907
RCW6
3711-000907
JCW1
Main board
JCW2
FCW3
3708-000258
KCW2
FCW2
3711-001557
KCW1
3708-001094
3711-003107
JCW3
3711-003111
RW2
HCW3
RW1
3711-001062
0
VCW1
2
9
0
9
0
9
8
2
9
8
0
8
0
9
2
0
9
8
0
9
9
0
0
9
AH39-00022A
0
HCW2
AH39-00247A
9
E.phone J.board
Cassette mechanism
9
0
0
9
9
0
2
88
0
0
2
0
AH39-00202A
2
9
Page 19
TESTER
MAIN
PCB
VTGND
Adjustment method
1. Tuner
MX-DVA5
ITEAM
Received FREQ.
Adjustment
point
Output
* Adjustment Location of Tuner PCB
AM(MW) OSC
Adjustment
530~1710 KHz
MO
1~7.0V
AM(MW) RF
Adjustment
594 KHz
MA
Maximum
Output(Fig1-4)
LW OSC
Adjustment
146~290 KHz
2~7.0V
Fig 1-4 OSC Voltage
LO
AM(MW) RF
Adjustment
150 KHz
LA
Maximum
Output(Fig1-4)
1-19
Page 20
MX-DVA5
FM THD Adjustment
SSG FREQ.
98 MHz
Adjustment
point
FM DETECTOR COIL
(FM DET)
Output
60 dB
Minumum Distortion (0.4% below)
(Figure 1-1)
FM Search Level Adjustment
SSG FREQ.
Adjustment
point
(SVR1)
Output
BEACON
SENSITIVITY
SEMI-VR(20K)
98 MHz
28 dB
Output
GND
FM S.S.G
FM
Antenna
Terminal
Speaker
Terminal
SET
Input
output
Distortion Meter
Figure1-1 IF CENTER and THD Adjustment
FM Antenna
SET
FM IN
FM S.S.G
28 dB
GND
Oscilloscope
Input
Adjust SVR1 so that “TUNED” of FL T
is lighted (Figure 1-2)
*Adjust FM S.S.G level to 28dB
AM(MW) I.F Adjustment
SSG FREQ.
Frequency
450 kHz
530 kHz
Adjustment
point
AM IF
Maximum output (Figure 1-3)
Figure1-2 FM Auto Search Level Adjustment
60cm
OUTPUT
AM SSG
450KHZ
INPUT
AM ANT
IN
Speaker Terminal
OUTPUT
VTVMOscilloscope
Figure1-3 AM I.F Adjustment
20 k
AM IF
1-20
Page 21
2 Cassette Deck
2-1 To Adjust Tape Speed
MX-DVA5
Notes
1) Measuring tape : i) VT712
(Tapes recorded with 3kHz)
ii) AC-225
2) Connect the cassette deck to the frequency counter
as in figure 1-5.
Step
Item
Pre-Setup
Condition
Pre-Setup
1) Deck 1:VT712
TAPE
1
SPEED
Control
REVERSE PLAY
OUT
(connected
to the frequency
counter)
Recording /Play head
AZIMUTH control screw
2) Press PLAY
SW button
3) Deck 2:Same
as above
REVERSE PLAY
(FORWORD)
Cassette Deck
SPK OUT
To Adjust
Turn VSR1 to
left and right
(FRONT board)
Cassette Deck
SPK OUT
(GND)
Figure 1-5
VTVM
In Out
Figure 1-7
Frequency Counter
Standard
3KHz 30Hz
Oscilloscope
output
Remark
Figure 1-6
Audio OSC.
SET
(MAIN PCB)
IN
AUX IN
LINE OUT
TP
JCW3
Figure 1-8
VTVM
IN OUT
Oscilloscope
1-21
Page 22
MX-DVA5
2-2 T o Adjust Playback Level/REC
Notes
1) Before the actual adjustment, clean the play/recording
head.
Function
Non Inverted output of ch4
Inverted output of ch4
Non inverted output ch3
Inverted output of ch3
Vcc for ch3/4 power block
Input for ch4 stand by control
Substrate ground
Output for ch3 op-amp
Inverting input for ch3 op-amp
Non inverting input for ch3
Output for ch4 op-amp
Inverting input for ch4 op-amp
Non inverting input for ch4
Vcc for pre block
–
–
+
13
+
–
14
1-27
Page 28
MX-DVA5
FAN8082 (DIC2,DIC3) : DC motor driver
1.Pin layout
2. Block diagram
GND
V
O1
1
2
8
V
O2
7
PV
CC
GND
V
O1
1
2
DRIVER OUT
PRE DRIVER
FAN8082
V
V
CTL
V
IN1
3
4
6
SV
CC
5
V
IN2
3. Pin function
Pin NumberPin NameI/OPin Function Description
1GND-Ground
2V
3V
4V
5V
6SV
7PV
8V
O1
CTL
IN1
IN2
CC
CC
O2
OOutput 1
IMotor speed control
IInput 1
IInput 2
-Supply voltage (Signal)
-Supply voltage (Power)
OOutput 2
CTL
V
IN1
3
4
TSD
LOGIC SWITCH
BIAS
8
V
O2
7
PV
CC
6
SV
CC
5
V
IN2
1-28
Page 29
KA3082 (LIC1, LIC2) : Bidirectional DC motor driver
1.Pin layout
KA3082
MX-DVA5
2.Pin function
Pin No.
1GND-Ground
2V
3V
4V
5V
6V
7SV
8PV
9V
10V
GNDV
12345678910
Symbol
O1
Z1
CTL
IN1
IN2
CC
CC
Z2
O2
V
O1
I/O Function
OOutput 1
-Phase compensation
IMotor speed control
IInput 1
IInput 2
-Supply voltage (Signal)
-Supply voltage (Power)
-Phase compensation
OOutput 2
V
Z1
CTLVIN1
V
IN2
SV
CC
PV
CCVZ2
V
O2
3.Block diagram
BIAS
1234
GND
O1
V
V
Z1
V
CTL
DRIVER OUT
PRE DRIVER
LOGIC SWITCH
5
V
IN1
678910
V
IN2
SV
CC
TSD
PV
CC
Z2
V
O2
V
1-29
Page 30
MX-DVA5
KM416C256D (SIC1) : CMOS DRAM
1.Pin layout
VCC
DQ0
DQ1
DQ2
DQ3
V
DQ4
DQ5
DQ6
DQ7
N.C
N.C
RAS
N.C
A0
A1
A2
A3
V
CC
W
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VSS
DQ15
DQ14
DQ13
DQ12
V
SS
DQ11
DQ10
DQ9
DQ8
N.C
LCAS
UCAS
OE
A8
A7
A6
A5
A4
V
SS
2. Pin function
Pin No.
16~19
22~26
2~5
7~10
31~34
36~39
Symbol
A0~A3
A4~A8
DQ0~3
DQ4~7
DQ8~11
DQ12~15
35,40
14
28
29
UCAS
LCAS
13
27
1,20
11,12
Vss
RAS
W
OE
Vcc
N.C
I/O
Function
I
Address Inputs
I
Address Inputs
I/O
Data In/Out
I/O
Data In/Out
I/O
Data In/Out
I/O
Data In/Out
-
Ground
-
Row Address Strobe
-
Upper Column Address Strobe
--
Lower Column Address Strobe
I
Read/Write Input
O
Data Output Enable
-
Power(+5V)
-
Power(+3.3V)
-
No Connection
3. Block diagram
RAS
UCAS
LCAS
W
A0~A8
Control
Clocks
Refresh Timer
Refresh Control
Refresh Counter
Row Address Buffer
Col. Address Buffer
VBB Generator
Row Decoder
Memory Array
262,144 x16
Cells
Column Decoder
Vcc
Vss
Lower
Data in
Buffer
Lower
DQ0
to
DQ7
Data out
Buffer
Upper
OE
Data in
Buffer
Sense Am ps & I/O
Upper
DQ8
to
DQ15
Data out
Buffer
1-30
Page 31
L4959 (RIC1) : Voltage regulator
1.Pin layout
MX-DVA5
TAB CONNECTED TO PIN 6
2.Block diagram
2/10
V
S
EN 8V
EN 12V(a)
EN 12V(b)
8
7
5
REF
GEN
11
10
9
8
7
6
5
4
3
2
1
D97AU716A
OUT 12V(a)
V
S
OUT 8.6V
EN 8.6V
EN 12V(a)
GND
EN 12V(b)
N.C.
OUT 5.6V
V
S
OUT 12V(b)
5.6V, 250mA
3
OUT 5.6V
REGULATOR
8.6V, 600mA
REGULATOR
9
OUT 8.6V
SWITCHED
12V, 800mA
REGULATOR
11
OUT 12V(a)
SWITCHED
12V, 1.3A
REGULATOR
1
OUT 12V(b)
SWITCHED
D97AU569C
3.Pin function
Pin No.Function
1OUT 12V (b)12V/1.3A SWITCHED OUTPUT VOLTAGE
2V
3OUT 5.6V5.6V/250mA OUTPUT VOLTAGE
4N.C.not connected
5EN 12V (b)Enable 12V/1.3A SWITCHED OUTPUT VOLTAGE
6GNDGround
7EN 12V (a)Enable 12V/0.8A SWITCHED OUTPUT VOLTAGE
8EN 8.6VEnable 8.6V/0.6A SWITCHED OUTPUT VOLTAGE
9OUT 8.68.6V/0.6A SWITCHED OUTPUT VOLTAGE
10V
11OUT 12V (a)12V/0.8A SWITCHED OUTPUT VOLTAGE
MIRR signal Peak hold pin. An external capacitance is connected to
between this pin and VPB.
MIRR signal Bottom hold pin. An external capacitance is connected to
between this pin and VPB.
Low Impedance Enable. A TTL compatible input pin that activates the FDCHG switches.
I
A low level activates the switches and the falling edge of the internal FDCHG triggers
the fast decay for the NIRR bottom hold circuit. (open high)
MIRR signal LPF pin. An external capacitance is connected between this pin and VPB.
-
Function
48
~
33
1-34
Page 35
MX-DVA5
Pin Function (2/2)
Pin No.
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Symbol
MEVO
MIN
PI
DFT
TPH
MEV
MEI
TE
FE
CE
LCN
LCP
SCLK
SDATA
SDEN
HOLD1
VNA
FNN
FNP
DIP
DIN
RX
BYP
SIGO
VPA
AIP
AIN
ATON
ATOP
CDRF
CDRFDC
I/O
SIGO Bottom Envelope Output. Bottom envelope for Mirror detection.
O
RF signal Input for Mirror. AC coupled inputs for the mirror detection
I
Function
circuit from the pull-in signal output. (PI)
Pull-in Signal Output. The summing signal output of A,B,C,D or PD1,
O
PD2 for mirror detection. Reference to VCI.
Defect Output. Pseudo CMOS output. When a defect is detected, the
O
DFT output goes high. Also the servo AGC output can be monitored at
this pin, When CAR bits 7-4 are '0011'.
PI Top Hold pin. An external capacitance is connected between this pin and VPB.
SIGO Bottom Envelope pin. An external capacitance is connected
between this pin and VPB.
Mirror Envelope Input. The SIGO envelope input pin.
I
Tracking Error Signal Output. Tracking error output reference to VCI.
O
Focusing Error Signal Output. Focus error output reference to VCI.
O
Center Error Signal Output. Center error out put reference to VCI.
O
Center Error LPF pin. An external capacitance is connected between
this pin and the LCP pin.
Center Error LPF pin. An external capacitance is connected between
this pin and the LCN pin.
Serial Clock. Serial Clock CMOS input. The clock applied to this pin
I
is synchronized with the data applied to SDATA. (Not to be left open).
Serial Data. Serial data bi-directional CMOS pin. NRZ programming
I/O
data for the internal registers is applied to this input. (Not to be left open)
Serial Data Enable. Serial enable CMOS input. A high level input
I
enables the serial port. (Not to be left open)
Hold Control. ATTL compatible control pin which, when pulled high, disables the RF AFC
I
charge pump and holds the RE AGC amplifier gain at its present value. (open high)
Ground. Ground pin for the RF block and serial port.
Differential Normal Output. Filter normal outputs.
O
Differential Normal Output. Filter normal outputs.
O
Analog inputs for RF Single Buffer. Differential analog inputs to the RF single-ended
I
output buffer and full wave rectifier.
Analog inputs for RF Single Buffer. Differential analog inputs to the RF single-ended
I
output buffer and full wave rectifier.
Reference Resistor Input. An external 8.2 kohm, 1% resistor is
connected from this pin to ground to establish a precise PTAT
(proportional to absolute temperature) reference current for the filter.
The RF AGC integration capacitor CBYP, is connected between BYP and VPA.
I/O
Single Ended Normal Output. SIngle-ended RF output.
O
Power. Power supply pin for the RF block and serial port.
AUDIO & COMMUNICATION BUSINESS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.21032)
200109(V)
Page 41
Block diagram
MX-DVA5
H/ P
5
HCW2
RCW6
4
D.OUT
AUX
74HCU04
OIC1
OCWHCW3
FIC4/ HIC4
BA4560X2
SOURCE
SELECTOR
& E.VOL
TDA7442D
FIC1
TO TUNER
U only
ECHO IC
M65855
TAPE IC
KA22291
FCW1UCW6
FCW3
VFD
UCW3
UCW4
ECW1
3
RW2FCW2
ACW2
ACW1ACW3
VCW1
KCW1
CW301
KCW2JCW2
CW302
JCW1
REMOCON
MICOM
LC86P6548
UX1UX2
UCW2
UCW7
KEY
USW8-14.19.20
30-32
AUX9 TUNER10
CD11 TAPE12
UCW5
STAND-BY
USW1
USW2-6
UCW1
OP/ CL
USW7
MASTER
VOLUME
BASS
LEVEL
SOUND
LEVEL
STK
B- B+ B-
402-
2
040
TO SPEAKER TO WOODER
1
ABCDEFG
STK
402-
LCW1
090
LCW5
LIC8
278R33
LCW2
LIC7
278R05
MIC AMP
BA3837
U only
LIC6
78R05
LIC10
7808
LIC9
78R08
LCW6
LCW4
LCW7
FAN
KEY2
USW15-18.21-29
TAPE-DECK
A-DECKB-DECK
POWER
-SUPPLY
CIRCUIT
MCW1
POWER
TRANS
MCW2
MCW3
MIC JACK
U only
2-1
Page 42
Standard schematic diagrams
Main section
5
4
MX-DVA5
MX-DVA5
MAIN signal
PRE MAIN signal
TUNER signal
CD signal
TAPE P.B. signal
TAPE REC. signal
SHEET 2/8
3
2
1
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-2
SHEET 1/9
HABCDEFG
Page 43
MX-DVA5
Amplifier section
5
SD1
RB441Q
4
3
2
MAIN Signal
Parts are safety assurance parts.
1
When replacing those parts make
sure to use the specified one.
ABCDEFG
SHEET 2/9
2-3
Page 44
MX-DVA5
MX-DVA5
Front control section
5
4
3
2
1
2-4
SHEET 3/9
HABCDEFG
Page 45
MX-DVA5
Main / Ziva section
5
4
3
2
1
CD signal
ABCDEFG
SHEET 4/9
2-5
Page 46
MX-DVA5
MX-DVA5
DVD Pre amp. Driver section
5
4
3
2
1
2-6
SHEET 5/9
HABCDEFG
Page 47
MX-DVA5
DVD Memory section
5
4
3
2
1
ABCDEFG
SHEET 6/9
2-7
Page 48
MX-DVA5
MX-DVA5
DVD 3Dec Model section
5
4
3
2
1
2-8
SHEET 7/9
HABCDEFG
Page 49
MX-DVA5
DVD Connecter section
5
4
3
2
1
ABCDEFG
SHEET 8/9
2-9
Page 50
MX-DVA5
MX-DVA5
Tuner section
5
4
3
2
FM/TUNER Signal
SHEET 1/8
AM Signal
1
2-10
SHEET 9/9
HABCDEFG
Page 51
Printed circuit boards
Main board
5
4
MX-DVA5
3
2
1
ABCDEFG
2-11
Page 52
MX-DVA5
MX-DVA5
Amp. board (Front side)
5
4
3
2
1
2-12
HABCDEFG
Page 53
MX-DVA5
Amp. board (Revese side)
5
4
3
2
1
ABCDEFG
2-13
Page 54
Front board
MX-DVA5
MX-DVA5
5
Power / CD switch board
4
FL display & system control board
3
2
Front key switch board
1
2-14
HABCDEFG
Page 55
MX-DVA5
DVD board (Forward side)
5
4
3
2
1
ABCDEFG
2-15
Page 56
MX-DVA5
DVD board (Reverse side)
MX-DVA5
5
4
3
2
1
2-16
HABCDEFG
Page 57
MX-DVA5
Power supply board
Primary part
Tuner board
Front side
5
4
Secondary parts
3
Reverse side
2
Headphone board
1
ABCDEFG
2-17
Page 58
MX-DVA5
DVD power board
5
4
MX-DVA5
3
2
1
2-18
HABCDEFG
Page 59
PARTS LIST
[ MX-DVA5 ]
* All printed circuit boards and its assemblies are not available as service parts.
MX-DVA5
Area suffix
UG - Turkey,South Africa,Egypt
US --------------------- Singapore
UW --------- Brazil,Mexico,Peru
UY ---------------------- Argentina
- Contents -
Exploded view of general assembly and parts list
DVD changer mechanism assembly and parts list
Cassette mechanism assembly and parts list
Electrical parts list
Note: Parts listed on the Parts List below can be supplied.
However, parts that are not listed below cannot be supplied
individually but only by purchasing the whole Cassette
Mechanism Assembly Unit. (When ordering, use the Parts No.
AH59-00104A for Cassette Mechanism Assembly Unit.)
X 2012802-000211CERAMIC RESONAT
ZD301 0403-000344ZENER DIODE
ZD401 0403-000361ZENER DIODE
ZD402 0403-000352ZENER DIODE
Parts numberParts nameArea
Block No. 07
Remarks
3-24
Page 83
< MEMO >
MX-DVA5
3-25
Page 84
MX-DVA5
Packing materials and accessories parts list
P3
P5
(A1 A9)
Block No.
Block No.
M
M
5
M
M
6
M
M
P2
P4
P7
P8
P6
A7
P1
A8
P9
3-26
Page 85
MX-DVA5
)
Parts list(Packing)
ItemParts numberParts nameArea
A
P 1AH69-00351KPACKING CASE1
AH69-00351JPACKING CASEUS1
AH69-00351LPACKING CASEUG1
P 2AH69-00343ACUSHION-L1 FOR SET
P 3AH69-00344ACUSHION-R1 FOR SET
P 4AH69-30012TPOLY BAG1 FOR SET
P 518654-101-071POLY BAG1 FOR INSTRUCIONS
P 6AH81-00374UCUSHION-BOTTOM1 FOR SPEAKER
P 7AH81-00374TCUSHION-TOP1 FOR SPEAKER
P 8AH81-00373PPOLY BAG2 FOR SPEAKER
P 9AH81-00435HPACKING CASE1 FOR SPEAKER
Q'tyDescription
Parts list(Accessories)
ItemParts numberParts nameArea
A
A 1AH68-00748PINSTRUCIONSUW1 ENG SPA POR
AH68-00748BINSTRUCIONSUS1 ENG CHI(PEKIN
AH68-00748MINSTRUCIONSUY1 SPA
AH68-00748QINSTRUCIONSUG1 ENG ARA
A 2AH59-00098BREMOCON1 RM-SMXDVA5U
A 3AH38-10001AFM-WIRE1
A 4AH42-20001PLOOP ANTENNA1
A 5---------------BATTERY2 BATTERY
A 6AH39-40001TRCA CABLE1
A 7MXDVA5K-SPBOX-LSPEAKER BOX1
A 8MXDVA5K-SPBOX-RSPEAKER BOX1
A 93721-000117CONVERSION-PLUG1
Q'tyDescription
Block No. M4MM
Block No. M5MM
UY UW
3-27
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