(1) This d esign of this product co ntains 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) Alteratio ns of the design or circuitry of the p roduct 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, watt age, etc. Replacement parts which have these specia l safety
characteristics are identified in the Parts List of Service Manual. Electrical components having such feat ures are iden tified 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 origin al 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.
• 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 ohm 10W resistor
paralleled by a 0.15 µF AC-type capacitor between an
SECTION 1
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 leg al 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 a re 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 o f the same type
and rating as specified by the manufacturer. (Except the JC version)
1-2 (No.22013)
Page 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 preve nt 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) Ground the workbench
Ground the workbench by laying conductive material (such as a conducti ve sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Grou nd yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
UX-A7DVD
(3) Handling the optical pickup
• In order to maintain quality during transport and before installatio n, both sides of the laser diod e on the replacement opti cal
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 replace-
ment procedure in the text. Remove the anti-static pin whe n replac ing the traverse un it. 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.
1.7 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the DVD pickup unit.
• Apply solder to the short land sections before the flexible wire is disconnected from the connector CN101 on the DVD servo board.
(If the flexible wire is disconnected without applying solder, the DVD pickup may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land sections after connecting the flexible wire.
Short lands
DVD mechanism assembly
Flexible wire
Connector
CN202
CN201
DVD servo board
(No.22013)1-3
Page 4
UX-A7DVD
1.8 Important for laser products
(1) CLASS 1 LASER PRODUCT
(2) DAN GER : 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) CAU TION : 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.
CAUTION
Please use enough caution not to see the beam directly
or touch it in case of anadjustment or operation check.
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.
REPRODUCTION AND POSITION OF LABELS
ADVARSEL
Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er
ude af funktion. Undgå udsasttelse for stråling.
ADVARSEL
Usynlig laserstråling ved åpning, når sikkerhetsbryteren er avslott. unngå utsettelse for stråling.
Caution label
1-4 (No.22013)
Page 5
SECTION 2
A
A
Disassembly method
2.1 Main body
2.1.1 Removing the metal cover
(See Fig.1~3)
(1) Remove the six screws A on the back of the body.
(2) Remove the screw B on each side of the body.
(3) Detach the rear side of the metal cover upward while pull-
ing the lower sides outward.
A
UX-A7DVD
Metal cover
Fig.1
B
Fig.2
Metal cover
B
Fig.3
(No.22013)1-5
Page 6
UX-A7DVD
2.1.2 Removing the DVD mechanism assembly
(See Fig.4, 5)
• Prior to performing the following procedure, remove the metal
cover.
(1) Remo ve the three screws C attaching the DVD mecha-
nism assembly on top of the body.
(2) Disconnect connector CN502 and CN503 on the DVD ser-
vo board upward at the bottom of the DVD mechanism assembly.
Bring up the DVD mechanism assembly and remove backward.
DVD mechanism assembly
CC
CN502
CN503
C
Fig.4
DVD mechanism assmbly
Fig.5
1-6 (No.22013)
Page 7
2.1.3 Removing the front panel assembly
r
(See Fig.6~9)
• Prior to performing the following procedure, remove the metal
cover and the DVD mechanism assembly.
(1) Disconnect the card wire from connector CN705 on the mi-
crocomputer board in the center of the right side of the
body.
(2) Disconn ect the card wire from connector CN301,and the
wires from connector CN300 and CN710 on the main
board in the center of the left side of the body.
(3) Disconn ect the card wire from connector CN704, and the
wire from CN703 on the microcomputer board.
ATTENTION:
When disconnecting the wires from CN703 and CN710,
remove the spacer attaching the wires.
(4) Disconnect the card wire from connector CN442 on the FL
connection board on top of the body.
(5) Remove the screw D on each side of the body.
(6) Remove the two screws E on the bottom of the body.
(7) Release the joint a on the bottom and the two joints b on
the right and left sides of the body using a screwdriver. Re-
move the front panel assembly toward the front.
Front panel assembly
Main board
CN710
CN301CN300
Front panel assembly
CN703
Fig.7
FL connection board
CN442
Micro computer board
b
UX-A7DVD
Spacer
D
CN704
D
Space
D
CN710
b
Micro computer board
CN705
Fig.6
Fig.8
E
CN703
Front panel assembly
CN704
a
Fig.9
(No.22013)1-7
Page 8
UX-A7DVD
2.1.4 Removing the rear cover / rear panel
(See Fig.10~14)
• Prior to performing the following procedure, remove the metal
cover and the DVD mechanism assembly.
(1) Remove the two screws F on the back of the body.
REFERENCE:
There is no need to remove the metal cover.
(2) Disconnect the card wire from connector CN1 on the tuner
pack on the right side of the body.
(3) Remove the twelve screws G and the two screws H on the
back of the body.
(4) Release the two joints c on the lower right and left sides of
the rear panel.
REFERENCE:
The rear panel with the tuner pack comes off.
G
Rear cover
G
G
Rear panel
Rear cover
Fig.10
F
H
G
c
Fig.12
Rear panel
Fig.13
1-8 (No.22013)
Tuner pack
CN1
Fig.11
Rear panel
Rear panel
Fig.14
c
Page 9
2.1.5 Removing the tuner pack
(See Fig.15)
• Prior to performing the following procedure, remove the metal
cover.
(1) Disconnect the card wire from connector CN1 on the tuner
pack on the right side of the body.
(2) Remove the two screws I on the back of the body.
2.1.6 Removing the fan
(See Fig.16,17)
• Prior to performing the following procedure, remove the metal
cover, the DVD mechanism assembly, the rear cover/rear panel and the DVD relay board.
(1) Disconn ect the wire from connector CN711 on the micro-
computer board on the right side of the body.
(2) Remove the three screws J attaching the fan bracket on
top of the body and release the joint d.
(3) Remove the two screws K attaching the fan.
UX-A7DVD
Tuner pack
I
CN1
Fig.15
Micro computer board
CN711
J
Fan bracket
Fan bracket
J
d
J
Fig.16
K
Fan
Fig.17
(No.22013)1-9
Page 10
UX-A7DVD
2.1.7 Removing the headphone board
(See Fig.18, 19)
• Prior to performing the following procedure, remove the metal
cover, the DVD mechanism assembly and the front panel assembly.
(1) Disco nnect the wire from connector CN310 on the main
board on the left side of the body.
(2) Release the wires from the two clamps on the bottom chas-
sis.
(3) Remov e the screw L attaching the headphone board on
the right side of the body.
Headphone board
Clamp
Main board
CN310
Fig.18
Headphone board
Fig.19
L
1-10 (No.22013)
Page 11
2.1.8 Removing the main board
(See Fig.20, 21)
• Prior to performing the following procedure, remove the metal
cover, the DVD mechanism assembly, the front panel assembly and the rear cover/ rear panel.
(1) Remove the two screws M and the three screws N, and
then remove the heat sink.
(2) Disconn ect the wires from connector CN307 and CN310,
the card wire from CN312 on the main board on the left side
of the body.
(3) Remove the screw O and P attaching the main board.
(4) Disconnect connector CN303, CN304, CN305 and CN306
on the main board. Release the two joints e at the bottom.
(5) Draw out the main board and disconnect the wire from con-
nector CN311.
Heat sink
Main board
CN303
O
UX-A7DVD
CN304
CN305
CN306
N
M
Fig.20
2.1.9 Removing the DVD relay board
(See Fig.22)
• Prior to performing the following procedure, remove the metal
cover, the DVD mechanism assembly and the rear cover/ rear
panel.
(1) Disconnect the card wire from connector CN515 on the
DVD relay board.
(2) Remove the screw Q attaching the DVD relay board on top
of the body.
(3) Disconnect connector CN511 and CN512 on the DVD relay
board.
CN311
e
DVD relay baoard
CN512CN511
P
e
Fig.21
CN312
CN307
CN310
CN515
Q
Fig.22
(No.22013)1-11
Page 12
UX-A7DVD
2.1.10 Removing the base chassis / microcomputer board
(See Fig.23~25)
• Prior to performing the following procedure, remove the metal
cover, the DVD mechanism assembly, the front panel assembly, the rear cover/ rear panel, the main board and the DVD relay board.
(1) Di sconnect the wires from connector CN701 and CN711
on the microcomputer board in the center of the right side
of the body.
(2) Remove the screw R attaching the voltage selector board.
(3) Re move the two screws S attaching the ba se chassis on
top of the body.
(4) Remo ve the two screws T attaching the microcomputer
board and release the two joints f .
Base chassis
Base chassis
S
Microcomputer board
CN701
CN711
Fig.23
Voltage selector board
R
Fan bracket
Microcomputer
board
Fig.24
T
1-12 (No.22013)
f
Fig.25
Page 13
2.1.11 Removing the power transformer assembly
r
(See Fig.26, 27)
• rior to performing the following procedure, remove the metal
cover, the DVD mechanism assembly, the front panel assembly, the rear cover/ rear panel, the main board and the base
chassis.
(1) Mo ve the power cord stopper upward on the back of the
body and remove. Disconnect the power cord from connector CN901 on the power transformer board.
REFERENCE:
The power cord can be removed alone.
(2) Remove the four screws U and release the wires from the
two clamps on the bottom chassis.
Power transformer board
CN901
Power cord
UX-A7DVD
Power amplifier board
Power cord stopper
Fig.26
U
Clamp
U
Fig.27
Bottom chassis
U
Power transforme
assembly
(No.22013)1-13
Page 14
UX-A7DVD
2.1.12 Removiing the power amplifier board
(See Fig.28, 29)
• Prior to performing the following procedure, remove the metal
cover, the DVD mechanism assembly, the front panel assembly, the rear cover/ rear panel, the main board and the base
chassis.
(1) Di sconnect the wire from connector CN111 on the power
amplifier board.
(2) Remove the band attaching the wire to the power amplifier
board.
(3) Release the wires from the clamp.
(4) Move the power amplifier board upward to release the two
joints g and remove to the right.
Band
Power amplifier board
CN111
Fig.28
Power amplifier
board
g
Clamp
Fig.29
Band
1-14 (No.22013)
Page 15
2.2 Front panel assembly
• Prior to performing the following procedure, remove the metal
cover, the DVD mechanism assembly and the front panel assembly.
2.2.1 Removing the cassette mechanism assembly
(See Fig.30, 31)
(1) Remove the spring attached to the cassette door on the
back of the front panel.
(2) Remove the fo ur screws V atta ch ing th e cassette mecha-
nism assembly.
V
UX-A7DVD
Cassette mechanism
assembly
V
Spring
V
Fig.30
Cassette door
Spring
Fig.31
(No.22013)1-15
Page 16
UX-A7DVD
2.2.2 Removing the key board
(See Fig.32~34)
• Prior to performing the following procedure, remove the cas-
sette mechanism assembly.
(1) Pull out the volume knob on the front side of the front panel.
(2) Remove the five screws W attaching the bracket (1) on the
back of the front panel.
(3) Remove the ten screws X attaching the key board.
Front panel assembly
X
Key board
X
X
X
Fig.34
Volume knob
Fig.32
Bracket(1)
W
WW
Front panel
Fig.33
1-16 (No.22013)
Page 17
2.2.3 Removing the MIC board
(See Fig.35, 36)
• Prior to performing following procedure, remove the cassette
mechanism assembly
(1) Remove the screw Y attaching the MIC board.
(2) Pull out the mic volume knob on the front side of the front
panel.
UX-A7DVD
Y
Mic volume knob
Fig.35
Fig.36
(No.22013)1-17
Page 18
UX-A7DVD
2.2.4 Removing the FL connection board
(See Fig.37~39)
(1) Remove the two screws Z and the screw AA attaching the
bracket (2) on the back of the front panel.
(2) Disconnect the card wire from connector CN441 on the FL
connection board.
(3) Push the two joint tabs h downward to release and pull out
the FL connection board.
Z
FL connection board
CN441
Front panel
Bracket(2)
Bracket(2)
Drive motor assembly
FL connection board
CN441
h
Z
Fig.37
Front panel
AA
Fig.38
h
1-18 (No.22013)
FL connection board
Fig.39
Page 19
2.2.5 Removing the drive motor assembly
(See Fig.37,38,40)
(1) Remove the two screws Z and the screw AA attaching the
bracket (2) on the back of the front panel.
(2) Remove th e screw AB attaching the drive motor assem-
bly. Release the joint tab i and pull out the drive motor assembly.
2.2.6 Removing the belt / drive motor
(See Fig.41)
• Prior to performing the following procedure, remove the drive
motor assembly.
(1) Remove the belt from the pulley.
(2) Remove the two screws AC attaching the drive motor.
UX-A7DVD
AB
Drive motor assembly
i
Fig.40
Belt
2.2.7 Removing the switch board.
(See Fig.42)
• Prior to performing the following procedure, remove the brack-
et (2) / drive motor assembly.
(1) Disconnect the card wire from connector CN441 on the FL
connection board (Do not fold down the card wire).
(2) Release the joint j and k in order on the right and left sides
of the shaft gear.
(3) Remove the screw AD attaching the switch board and re-
lease the joint tab k.
Drive motor
AC
Fig.41
FL connection board
CN441
kj
Switch board
AD
Shaft gear
Tab k
Fig.42
(No.22013)1-19
Page 20
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A
2.2.8 Removing the FL display section
(See Fig.43~48)
(1) Remove the four screws AE attaching the case cover on
the front panel.
(2) Pull out the FL panel from the four joint bosses m on the FL
display cover.
(3) Remo ve the four screws AF attaching the FL display cov-
er. Disconnect the card wire from connector CN451 and
CN452 on the FL relay board.
(4) Remove the two screws AG attaching the FL display on
the FL display cover.
(5) The FL boa rd and the lens come off from the FL display
section.
AE
Case cover
AE
FL relay board
CN451
CN452
LED board
CN461
m
Fig.43
Fig.44
FL display cover
FL panel
m
FL display cover
Fig.46
FL display section
FL display cover
AGAG
Fig.47
FL display section
1-20 (No.22013)
FAF
LED board
Fig.45
FL board
Fig.48
Lens
Page 21
2.2.9 Removing the FL relay board
A
(See Fig.49)
• Prior to performing the following procedure, remove the FL dis-
play cover.
(1) Disconnect the card wire from connector CN453 on the FL
relay board.
(2) Remove the two screws AH attaching the FL relay board.
FL relay board
CN453
HAH
UX-A7DVD
Fig.49
(No.22013)1-21
Page 22
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A
2.3 DVD loading mechanism section
2.3.1 Removing the clamper assembly
(See Fig.1)
(1) Re move the four screws A attaching the cla mper assem-
bly.
(2) Move the clamper assembly in the direction of the arrow to
release the joint a on each side, and remove.
ATTENTION:
When reassembling, reattach the clamper assembly at the two
joints a.
2.3.2 Removing the tray
(See Fig.2, 3)
• Prior to performing the following procedure, remove the
clamper assembly.
(1) Push the part b of the slide cam through the slot on the left
side of the loading base.
(2) Draw out the tray toward the front.
ATTENTION:
When reattaching the tray, move the part c of the slide cam to
the right (See Fig.3).
A
a
a
A
Clamper
assembly
A
Fig.1
Loading base
Tray
b
Fig.2
c
Slide cam
Fig.3
1-22 (No.22013)
Page 23
2.3.3 Removing the servo control board
(See Fig.4)
CAUTION:
Solder the sorting round point before disconnecting the flexible
wire extending from the pickup. If you do not follow this instruction, the pickup may be damaged.
(1) Solder the sorting round point on the flexible wire connect-
ed to connector CN101 on the servo control board.
(2) Disconnect the flexible wire from connector CN101 on the
servo control board.
(3) Disconnect the card wires from connector CN201 and
CN202 on the servo control board. Release the two joints
d.
(4) Move the servo control board in the direction of the arrow
to release the joint e, and remove upward.
CAUTION:
Unsolder the sorting round point after reassembling.
2.3.4 Removing the traverse mechanism assembly
(See Fig.5, 6)
• Prior to performing the following procedure, remove the
clamper assembly, the tray and the servo control board.
(1) Remove the four screws B attaching the traverse mecha-
nism assembly.
CAUTION:
When reassembling, get the flexible wire extending from the
spindle motor board through the slot f of the elevator.
CN201
d
e
Servo control board
B
Traverse mechanism
assembly
UX-A7DVD
Sorting round point
CN101
Flexible wire
d
CN202
CN101
Fig.4
B
B
B
Traverse mechanism
assembly
B
Fig.5
B
f
Fig.6
(No.22013)1-23
Page 24
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2.3.5 Removing the elevator
(See Fig.7,8)
• Prior to performing the following procedure, remove the
clamper assembly, the tray, the servo control board and the
traverse mechanism assembly.
(1) Pul l the two tabs g outward and release the two shafts of
the elevator.
ATTENTION:
When reassembling, fit the two shafts on the front side of the
elevator into the grooves h of the slide cam.
Elevator
Tab g
Elevator
Elevator
Loading base
Shaft
Fig.7
Fig.8
Elevator
Tab g
Slide cam
h
1-24 (No.22013)
Page 25
2.3.6 Removing the motor assembly
(See Fig.9, 10)
• Prior to performing the following procedure, remove the
clamper assembly, the tray, the servo control board, the
traverse mechanism assembly and the elevator.
(1) Remove the belt from the pulley.
(2) Remove the screw C attaching the loading motor.
(3) Remove the screw D attachin g the motor board on the
back of the loading assembly.
(4) Release the tab i fixing the motor board and remove the
motor assembly.
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Belt
C
Loading motor pulley
Fig.9
Tab i
Motor assembly
Motor board
Fig.10
D
Loading assembly
(No.22013)1-25
Page 26
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p
2.3.7 Removing the idle gear/ pulley gear/ middle gear/ slide cam
(See Fig.11~13)
• Prior to performing the following the procedures, remove the
clamper assembly, the tray, the servo control board, the
traverse mechanism assembly, the elevator and the motor assembly.
(1) Push the two tabs j attaching the idle gear inward and pull
out the idle gear.
(2) Remove the screw E attaching the pulley gear bracket.
Move the pulley gear bracket in the direction of the arrow
and remove upward.
(3) Pull out the pulley gear.
(4) Move the sli de cam in the di re ction of th e arrow to relea se
the two joints k and remove upward.
(5) Remove the middle gear.
Pulley gear bracket
Pulley gear
Motor assembly
E
Pulley gear bracket
E
Idle gear
Fig.11
Idle gear
Tab j
Pulley gear
Pulley gear
1-26 (No.22013)
OK.
YES
Fig.12
NO
Change the picku
Slide cam
Fig.13
Middle gear
Loading base
Page 27
2.4 DVD traverse mechanism assembly
2.4.1 Removing the feed motor assembly
(See Fig.14)
(1) Unsolder the two soldering l on the spindle motor board.
(2) Remove the two screws F attaching the feed motor assem-
bly.
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Feed motor assembly
F
2.4.2 Removing the feed motor
(See Fig.14~16)
• Prior to performing the following procedure, remove the feed
motor assembly.
(1) Remove the screw G and the spring.
CAUTION:
When reassembling, attach the spring correctly to press
the feed gear M and E.
(2) Remove the feed gear M.
(3) Pull out the feed gear E and the lead screw.
(4) Remove the two screws H and the feed motor.
CAUTION:
When reassembling, set the two wires extending from
the feed motor to the notch m of the feed holder as
shown in Fig.14.
F
Pickup
m
l
Spindle motor board
Feed motor
Spindle motor
Fig.14
Lead screw
Feed gear M
Feed gear E
Fig.15
Spring
G
Feed motor
H
Fig.16
(No.22013)1-27
Page 28
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2.4.3 Removing the pickup
(See Fig.17~19)
• Prior to performing the following procedure, remove the feed
motor assembly.
(1) Remove the screw l, the T spring(S) and the shaft holder
with the plate.
ATTENTION:
When reassembling, reattach the T spring (s) correctly to
press the shaft
(2) Detach the part n of the shaft upward and move the part o
in the direction of the arrow, then remove the shaft from the
spindle base.
(3) Release the joint p in the direction of the arrow.
(4) Pul l out the shaft from the pickup.
(5) Remove the two screws J attaching the actuator.
(6) Re lease the joint of the actuato r and the lead spring, and
pull out the lead spring.
ATTENTION:
When reattaching the pickup, attach the spring under the
shaft (See fig.19)
I
Plate
T spring(S)
p
Pickup
n
Fig.17
Spindle base
o
Shaft holder
Pickup
J
Actuator
Actuator
Lead spring
Lead spring
Shaft
Fig.18
Pickup
1-28 (No.22013)
Shaft
Spring
Fig.19
Page 29
2.4.4 Removing the shaft holder/ shaft
(See Fig.20)
• Prior to performing the following procedure, remove the feed
motor assembly and the pickup.
(1) Remove the screw K attaching the shaft holder.
(2) Remove the shaft.
2.4.5 Removing the spindle motor assembly
(See Fig.21~23)
• Prior to performing the following procedure, remove the feed
motor assembly, the pickup, the shaft and the shaft holder.
(1) Turn over the mechanism base and remove the three
screws L attaching the spindle motor assembly.
ATTENTION:
When reassembling, set the card wire extending from
the spindle motor board to the notch of the spindle base.
(2) Remove the three screws M and the spindle base.
K
Shaft holder
Spindle motor board
UX-A7DVD
Shaft
Fig.20
Spindle motor assembly
L
Spindle motor
Spindle base
L
L
Fig.21
Spindle base
M
Fig.22
M
Fig.23
Mechanism base
(No.22013)1-29
Page 30
UX-A7DVD
2.5 Cassette mechanism assembly section
2.5.1 Removing the Play/Record & Clear head
(See Fig.1~3)
(1) W hile moving the trigger arm o n the right side o f the head
mount in the direction of the arrow, turn the flywheel R
counterclockwise until the head mount comes ahead and
clicks.
(2) The head turns counterclockwise a s you turn the flyw heel
R counterclockwise(See Fig.2 and 3).
(3) Di sconnect the flexible wire from connector CN31 on the
head amplifier & mecha control board.
(4) Re mo v e the spring from the back of the head.
(5) Loosen the azimuth screw for reversing attaching the head.
(6) Remove the head on the front side of the head mount.
Cassette mechanism assembly
Fig.1
Head
Fly wheelR
Trigger armHead mount
Flexible wire
Fly wheel R
Fig.2
Azimuth screw
Head
for reversing
Spring
CN31
Head amplifer & mecha control board
Fig.3
1-30 (No.22013)
Page 31
2.5.2 Removing the head amplifier & mechanism control board
(See Fig.4)
(1) Turn over the cassette mechanism assembly and remove
the three screws A attaching the head amplifier & mechanism control board.
(2) Disconn ect the flexible wire from connector CN31 on the
head amplifier & mechanism control board.
(3) Disconnect connector CN32 of the head amplifier & mech-
anism control board from connector CN1 on the reel pulse
board.
REFERENCE:
If necessary, unsolder the 4 pin wire soldered to the main motor.
Head amplifier & mecha control board
CN32
A
UX-A7DVD
2.5.3 Removing the main motor
(See Fig.4~7)
(1) Remove the two screws B .
(2) Half raise the motor and remove the capstan belt from the
motor pulley.
ATTENTION:
Be careful to keep the capstan belt from grease. When reassembling, refer to Fig.6 and 7 for attaching the capstan belt.
Main motor assembly
Capstan belt
CN31
Flexible wire
B
A
4pin wire
Main motor assembly
Fig.4
Main motor
assembly
Motor pulley
Fig.5
Capstan belt
Capstan belt
Fig.6
Main motor assembly
Fly wheel
Motor pulley
Fig.7
(No.22013)1-31
Page 32
UX-A7DVD
2.5.4 Removing the flywheel
(See Fig.8, 9)
• Prior to performing the following procedure, remove the head
amplifier & mechanism control board and the main motor assembly.
(1) From the front side of the cassette mechanism, remove the
slit washers attaching the capstan shaft L and R. Pull out
the flywheels backward.
Fly wheel RFly wheel L
Fig.8
Fly wheel R
Capstan shaft RCapstan shaft L
2.5.5 Removing the reel pulse board and solenoid
(See Fig.10)
• Prior to performing the following procedure, remove the head
amplifier & mechanism control board.
(1) Remove the screw C.
(2) Re lease the tab a, b, c, d and e reta ining the reel pulse
board.
a
Solenoid
Fly wheel L
Slit washer
Fig.9
(3) Re lease the ta b f and g attaching the so lenoid on the reel
pulse board.
(4) The reel pulse board and the solenoid come off.
bc
d
Reel pulse board
1-32 (No.22013)
fg
C
e
Fig.10
Page 33
2.5.6 Reattaching the Play/ Record & Clear head
r
r
(See Fig.11~13)
(1) Reattaching the head mount assembly.
a) Change front of the direction cover of the head mount
assembly to the left (Turn the head forward).
b) Fit the bosses O',P',Q',U' and V' on the head mount
assembly to the holes P and V, the slots O,U and Q
of the mecha sub assembly (See Fig.11 to 13).
CAUTION:
To remove the head mount assembly, turn the direction cover to the left to disengage the gear. If the
gear can not be disengaged easily, push up the
boss Q' slightly and raise the rear side of the head
mounts slightly to return the direction lever to the
reversing side.
c) Tighten the azimuth screw for reversing.
d) Reattach the spring from the back of the Play/ Record
& Clear head.
e) Connect the flexible wire to connector CN31 on the
head amplifier & mechanism control board.
U'Q'
Head mount assembly
Head mount assembly
UX-A7DVD
O'
P'
V'
Direction cove
Fig.11
O
P
Q
V
Head
Spring
Flexible wire
U
Fig.12
Azimuth screw for reversing
Direction cove
Head mount
CN31
Fig.13
Head amplifier &
mechanism control board
(No.22013)1-33
Page 34
UX-A7DVD
SECTION 3
Adjustment method
3.1 Method of setting DVD test mode
1.Main body "Stop button " and "DVD ej ect button " are pushed at the same time, and the power supply is turned on.
2.The display of the FL display becomes "TEST D", and becomes a test mode.
TESTDR2
3.Comes off the test mode when the power supply is turned off by "STANDBY button ".
4.Use key in test mode
[STOP]+[DVD EJECT]+AC opening:Test mode
[STANDBY]:Test mode release
[ON SCREEN] : Self adjustment command for test
[DVD EJECT] : EJECT command for test
[STOP] : STOP command for test
[DVD PAUSE] : Self adjustment command for test
[DVD PLAY] : Jitter measurement command for test
[ENTER] : EEPROM initialization command
[ ] : Outer tracking OFF command
[ ] : Tracking OFF of surroundings on inside command
[1]~[9] : Servo relation examination command
[MENU] : Display of number of ROM
[TOP MENU] : Display of number of ROM
5.Content of processing
(1) A reproduction and posed inside display the jitter measurement value and the value of the current of the laser on the FL display
in the TEST mode.
FIX4 BYTE7 Value of current of laser (subordinate position)
BYTE8 Value of current of laser (high rank)
BYTE9 Jitter measurement value (subordinate position)
BYTE10 Jitter measurement value (high rank)
FL display
TEXS
Value of current of laserJitter measurement value
T
X
XX
D
YYRY
2
Y
1-34 (No.22013)
Page 35
UX-A7DVD
D
x
F
• Value of current of laser
FL display(Example)
0033 0000
Value of current of laser
As for the value of the current of the laser, the figure displayed on the FL display reaches the current value as it is by the unit
of mA.
It is 33mA if displayed as "0033".
<For DVD>
If the value of the current of the laser is 64mA or less, it is possible to judge simply with about normal.
The deterioration of the laser diode of picking up is thought when there are 65mA or more value of the current of the laser.
<For CD>
If the value of the current of the laser is 49mA or less, it is possible to judge simply with about normal.
The deterioration of the laser diode of picking up is thought when there are 50mA or more value of the current of the laser.
• Jitter measurement value
Remote control "4" button Value of current of laser for CD
Remote control "5" button Value of current of laser for DV
FL display(Example)
0033 20A2
jitter value
<Please adjust when corresponding to the following.>
- When you exchange picking up.
- When you replace the spindle motor.
- When the reading accuracy of the signal is low.
(The screen sometimes stops in outer which with the block noise to the screen on the disk)
(2) EEPROM initialization
When the ENTER key is pushed in the test mode; Done the intialize for EEPROM of system CPU and unit CPU.
The jitter value is displayed by the he
L display
TESET
R2
EPRODM
(3) In si de and outside surroundings tracking OFF
After searches for the DA disk to first TR and each last TR when " " and the " " key are pushed in the test mode, tracking
OFF is processed.
(No.22013)1-35
Page 36
UX-A7DVD
(4) Display of number of ROM
When MENU and the TOP MENU key are pushed in the test mode, the number of ROM of the main microcomputer, a submicrocomputer, the unit microcomputer, and microcode is displayed on the FL display instead of the test display.
Transmission command: C2(ROM VERSION REQUEST)
Data from unit CPU is as follows.
FIX4 BYTE11: Ver subordinate position byte of unit CPU
BYTE12: Ver high-ranking byte of unit CPU (HEX)
BYTE13: Date of microcode(ASCII)
FL display (When you press MENU:five seconds).
Version of unit microcomputer
U
M
N
C
I
:
T:
120J
FL display (When you press TOP MENU:five seconds).
Version of the main microcomputer
S
D
Y
V
S
D
:
:
Version of sub-microcomputer
(5) Servo rel ation examination command
The following processing is done to ten keys in the test mode respectively.
[ 1 ] : Start & reproduction of DISC (reproduction from starting position)
[ 2 ] : TNO+1 search of CD
[ 3 ] : TNO-1 search of CD
[ 4 ] : The CD_LD lighting (Turn off with the stop button).
[ 5 ] : The DVD_LD lighting (Turn off with the stop button).
[ 6 ] : DVDx1.4 jitter measurement mode
[ 7 ] : Unused
[ 8 ] : The display (The address is done and -1 is done).
[ 9 ] : The display (The address is done and +1 is done).
( [8] and [9] are the stop button and Back to Top. )
Microcode
1
1
0
A
.
.
1
N
0
0
9
00
8
7
1-36 (No.22013)
Page 37
3.2 Cassette mechanism section
UX-A7DVD
Head angle
azimuth screw
(foward)
Mechanism control P.C. board
Motor speed
VR37
BIAS adjustment
VR31
L301
VR37
VR31
R314
B155
C308
R315
R327
Head angle
azimuth screw
(reverse)
MB
PBRAGPBL
RECRAGRECL
MS
SW8V
MG
1
CN34
C307
R313
C310
C314
Q302
C317
C319
C221
B112
C313
C121
L303
C316
R310
R335
C106
Q103
R305
B198
R353
Q305
R303
R122
Q101
C103
B163
Q321
R221
10
B156
C303
R115
B157
R108
R101
C113
R110
R109
R102
C110
C104
R301
R121
1
C108
C107
9
B151
R112
R111
C102
R107
B152
C302
R103
1
C301
C111
C306
B164
R304
C109
B158
8
B106
C101
6
B166
R116
R212
R211
C211
R216
Head angle
azimuth screw
(foward)
CN31
Recording and play head/Erase head
9
9
IC32
C201
C209
B109B108
B101
CN33
R342
C213
R210
R209
C207
B159
16
B102
R341
C208
R207
1
CN31
B200
B110
1
R205
R208
B160
R340
R105
C105
R343
C206
R345
NC
C305
R201
1IC31
TAP
C304
B113
C202
C210
Q331
RRE
C375
C205
C203
B161
R215
R339
C334
R106
R206
5VMGSOL
R204
R203
B153
R104
R222
C204
B168
PHO
R202
C333
C332
R375
Q201
PLA
C331
Q372
Q203
FRE
R331
B167
1
70u
16
10
CN32
B162
C371
R372
R373
Q375
R371
R376
C374
R338
C376
E
D375
Q376
Q371
E
R337
R336
9
IC33
8
Head angle
azimuth screw
(reverse)
B
B
(No.22013)1-37
Page 38
UX-A7DVD
3.2.1 Mechanism section
Item
Mesurement
condition
Mesurement
procedure
Standard
value
Adjustment
position
Confirmation of angle of headTape speed confirmation
Test tape: VT703L (8kHz)
Measurement output terminal:
Speaker terminal
1.Test tape VT703L (8kHz) is played.
2.It is adjusted that becomes an output
that both are the maximum on a forward
side and a reverse side with the screw
for the azimuth adjustment.
Test tape: VT712 (3kHz)
Measurement output terminal:
Speaker terminal or headphone terminal
Test tape VT712(3kHz) of the forward is
reproduced by finishing rolling , and
adjusted for the display of the frequency
counter to become 2,940-3,090Hz by
VR37.
3.This adjustment is adjusted respectively
with the adjustment screw for the forward
side and the adjustment screw for a
reverse side.
The maximum output
Only when the head is exchanged,
2,940 ~ 3,090Hz
VR37
adjusts.
3.2.2 Reference and standard value of confirmation matter
Test tape: VT712 (3kHz)
Measurement output terminal: Speaker terminal or headphone terminal
Both reverse must forward/reproduce, and
the speed difference must be 6.0Hz or
less as for finish wrapping of test tape
VT712 (3kHz).
Standard
value
Adjustment
position
6.0Hz or less
VR31
Both reverse must forward/reproduce,
and each wow & flutter must be 0.25%
(WRMS) or less as for begin to wrap of
test tape VT712 (3kHz).
0.25% or less (WRMS)
1-38 (No.22013)
Page 39
3.2.3 Electric adjustment
,
UX-A7DVD
Item
Mesurement
condition
Mesurement
procedure
Standard
value
Adjustment
position
Recording BIAS adjustment
Forward or reverse
Test tape: AC-514 TYPE and
AC-225 TYPE
Measurement output terminal:
Recording and headphone terminal
1.Test tape (AC-514 TYPE ,AC-225
TYPE )is installed, and makes to
recording/pose.
2.Connects in the head for the recording
and to connect 100 with the series and
to measure the current of the bias,
connects with VTVM.
3.The pose is released after sets and the
recording begins. It is adjusted that the
current of the bias reaches the following
value by VR31 for L side at this time and
VR32 for R side.
4.0 (TYPE )and4.20 (TYPE )
AC-225: 4.20
AC-514: 4.0
VR31
Recording reproduction
frequency characteristic
Standard frequency: 1kHz/10kHz
(Srandard: -20dB)
Test tape: AC-514 TYPE
Measurement input terminal: OSC IN
1.Test tape (AC-514 TYPE )is installed,
and makes to recording/pose.
2.Records the recording's releasing the
pose, beginning, and repeating 1kHz
and 10kHz of a standard frequency from
the frequency transmitter.
3.VR31 for L side and VR32 for R side are
adjusted so that the recorded part may
be reproduced and there is a difference
between 1kHz and 10kHz in 1dB }2dB,
and the recording is repeated again.
Output difference
1kHz/10kHz:-1dB 2dB
3.2.4 Electric characteristic confirmation
Item
Mesurement
condition
Forward or reverse
Test tape: AC-514 TYPE
Measurement terminal:
Current of recording biasDeletion current (standard value)
BIAS TP on P.C.board
Mesurement
procedure
1. It is confirmed that BIAS1 and 2 are
switched, and the frequency changes.
2.Test tape (AC-514 TYPE ) is installed,
and recording/makes to the pose.
3.It is confirmed that it is BIAS TP on the
substrate and the frequency is 100Hz
6kHz.
Standard
value
Adjustment
position
100kHz 6kHz
Forward or reverse
State of recording
Test tape: AC-514 TYPE and
AC-225TYPE
Measurement terminal:
Erase head's both ends
1.Test tape (AC-514 TYPE )is installed,
and makes to recording/pose.
2.The pose is released and after sets in
the state of the recording, 1W is
confirmed, and connects with the series
and the deletion current is confirmed
from erase head's both ends to the
erase head.
TYPE : 120mA
TYPE : 75mA
(No.22013)1-39
Page 40
UX-A7DVD
p
3.3 Maintenance of DVD pickup
(1) Cl eaning of pickup lens
a) Prior to changing the pickup, clean the pickup lens.
(2) Confirmation of the service life of laser diode when the ser-
vice life of the laser diode has been exhausted, the following symptoms will appear.
a) The RF output (EFM output a nd eye pattern ampli-
tude) will become lower.
b) The drive current required for light emitting of laser di-
ode will be increased.
Confirm the service life according to the following flow chart:
Is the RF output
1.25 0.22VP-P?
YES
NO
Change the picku
OK.
3.4 Procedures of changing the DVD pickup
The power switch is turned off,
and the power code is pulled out from the outlet.
Change the DVD pickup by referring
to "Removing the DVD pickup" in the
Disassembly Method.
The power code is inserted, and the power switch is
turned on. It is confirmed that the laser emits light
for about three seconds at that time, and object lens
moves vertically.
Completion the disc.
(3) Semi-sol id state resistors on the APC P.C. board
The semi-solid state resistor on the APC P.C.board attached to the pickup is used for adjusting the laser power.
Since these resistor should be adjusted in pair according to
the characteristics of the optical block, be sure not to touch
on the resistors.
Since the service life of the laser diode will be exhausted
when the laser power is low, it is necessary to change the
pickup. Meanwhile, do not pickup. Otherwise, the pickup
will be damaged due to over current.
It is confirmed to be able to observe the shape of
waves of the eye pattern to TP602.
Completion of changing the DVD pickup.
Therefore, besure to perform not only adjustment and
operation of this system so carefully as not to directly
look at thelaser beam or touch on the body.
1-40 (No.22013)
Page 41
Description of major ICs
4.1 74VHC00MTC-X (IC455,IC503) : NAND Gate
•Pin layout
UX-A7DVD
SECTION 4
• Truth table
14
13
12
11
10
9
8
14
13
12
11
10
9
8
Vcc
CLR2
D2
CK2
PR2
Q2
Q2
V
cc
A
2
B
2
O
2
A
3
B
3
O
3
1
A
0
2
B
0
3
O
0
4
A
1
5
B
1
6
O
1
7
GND
4.2 74VHC74MTC-X (IC454) : Flip-Flop with Preset and Clenar
44AGCGAGC amplifier again control
45AGCOAGC amplifier level control
46TESTSG TEST signal input
47REFINPRF signal positive input
48RFINNRE signal in verterd input
49VIN5Internal four-partition (CD) RF input 1
50VIN6Internal four-partition (CD) RF input 2
51VIN7Internal four-partition (CD) RF input 3
52VIN8Internal four-partition (CD) RF input 4
53VIN9Internal four-partition (DVD) RF input 2
54VIN10Internal four-partition (DVD) RF input 1
55VCC1Power supply 1 (5V)
56VREF1VREF1 voltage output
57VIN1Internal four-partition (DVD) RF input 1
58VIN2Internal four-partition (DVD) RF input 2
59VIN3Internal four-partition (DVD) RF input 3
60VIN4Internal four-partition (DVD) RF input 4
61GND1Groud 1
62VIN113-deam sub (CD) input 2
63VIN123-deam sub (CD) input 1
64HDTYPE HD type selection
(No.22013)1-43
Page 44
UX-A7DVD
4.4 AK93C65AF-X (IC451) : EEPROM
• Pin layout
4833~
49
~
64
• Block diagram
AGOFST
AGCBAL
DFLTOP
AGCLVL
DCFLT
DCFLT
RFENV
BOTTOM
TESTSG
VFOSHORT
RFOUT
FEOUT
ASOUT
32
~
17
116
~
23
19
30
+-
31
25
32
41
42
HOLDEQ
43
PEAK
+-+-
47
RFINP
48
RFINN
46
5
38
DCRF
35
37
RFC
22
21
FEN
7
FBAL
20
+-
UDO
OFTR
AGCO
AGCG
VHALP
VREF2
VREF1
VCC3
4039 45 4429 27 56 36 36 28 55 26 61
Level
Level
Cont.
Cont.
OFTR
BDO
Det.
Det.
Vol. Adg
+-
AGC Cont.
Boost
Cont.
FC
Cont.
VGA
+-
+-
+-
SW
+-
FBAL
ADD ADDADD
VCC2
TBAL
VCC1
GND3
REGSIF
Differential
Phase
Det.
TBAL
EQ EQ EQ EQ
GND2
GND1
LPC AMP
+-
Micro
Det.
DTRD
9
10
IDGT
11
STANBY
12
SEN
13
SCK
14
STDI
64
HDTYPE
1
LPC1
2
LPCO1
LPC2
3
LPCO2
4
18
TEOUT
TEN
17
+-
+-
6
8
24
34
TBAL
POFLT
MON
RFDIFO
AMP
49 50 51 5253 5462
VIN5
VIN6
VIN7
VIN8
VIN9
VIN10
63 57 58 59 60
VIN11
VIN12
• Pin function
Pin no.SymbolFunction
1PE Program enable (With built-in pull-up resistor)
2VCCPower supply
3CSChip selection
4SKCereal clock input
5DICereal data input
6DOCereal data output
7GNDGround
8NCNo connection
NOTE :
The pull-up resistor of the PE pin is about 2.5Mohm (VCC=5V)
1-44 (No.22013)
VIN1
VIN2
VIN3
VIN4
ADD
ADD
S-line
J-line
15
RSCL
JLINE
16
Page 45
4.5 BA5983FM-X (IC201) : BTL driver
• Pin layout & Block diagram
UX-A7DVD
282726
VCC
+-
2524232221201918171615
+-
STAND BY
C #4
10k
10k
10k
20k
+-
+-
10k
10k
20k
+-
+-
10k
STAND BY
+-+-
34
21
67
5
• Pin function
Pin NoSymbolFunction
1BIAS INNC
2O PIN1(+)Output3 for motor
3OPIN1(-)NC
4O POUT1Output2 for motor
5OPIN2(+)NC
6OPIN2(-)NC
7O POUT2Output1 for motor
8GNDGND
9STBY1Positive input for hall input Amp1.
10PowVCC1Negative input for hall input Amp1.
11VO2(-)Positive input for hall input Amp2.
12VO2(+)Negative input for hall input Amp2.
13VO1(-)Positive input for hall input Amp3.
14VO1(+)Negative input for hall input Amp3.
15VO4(-)Hall bias terminal
16VO4(+)Brake Mode terminal
17VO3(-)Capacitor connection pin for phase compensation
18VO3(+)Short brake terminal
19PowVCC23Phase synthesized FG signal output termnal
20STBY2Rotation detect signal outpu t terminal
21GNDTorque control standard voltage input terminal
22OPOUT3Torque con trol voltage input terminal
23OPIN3(-)START/STOP switch
24OPIN3(+)FG signal output terminal
25OPOUT4Power supply for drive r division
26OPIN4(-)Gain switch
27OPIN4(+)Power supply for driver division
28PreVCCResistance connection pin for output current sense
C #1/2/3
89
VCC
10k
10k
VCC
1011
10k
+-+-+-+-
10k
Level
Sblft
Level
Sblft
10k
+-
10k
10k
12
10k
10k
10k
10k10k
10k
13
Level
Sblft
Level
Sblft
+-+-
10k
10k
10k
+-
10k
14
(No.22013)1-45
Page 46
UX-A7DVD
4.6 BA6664FM-X (IC251) : Motor driver
• Pin layout & Block diagram
RNF
VM GSW VCC
2726
28
TSD
GAIN
SWITCH
FGPSECECRFRFG2SBCNF
2524232221201918171615
VCC
PS
TORQUE
+-
VCC
SENSE AMP
VCC
+ -
CURRENT
SENSE AMP
DRIVER
GAIN
CONTROL
TL
HALL AMP
4
2
7
8
A3A2A1GNDH1
• Pin function
Pin No.SymbolFunction
1NCNC
2A3Output3 for motor
3NCNC
4A3Output2 for motor
5NCNC
6NCNC
7A1Output1 for motor
8GNDGND
9H1+Positive input for hall input Amp1.
10H1-Negative input for hall input Amp1.
11H2+Positive input for hall input Amp2.
12H2-Negative input for hall input Amp2.
13H3+Positive input for hall input Amp3.
14H3-Negative input for hall input Amp3.
15VHHall bias terminal
16BRBrake Mode terminal
17CNFCapacitor connection pin for phase compensation
18SBShort brake terminal
19FG23Phase synthesized FG signal output termnal
20FRRotation detect signal output terminal
21ECRTorque control standard voltage input terminal
22ECTorque control voltage input terminal
23PSSTART/STOP switch
24FGFG signal output terminal
25VCCPower supply for driver divisi on
26GSWGain switch
27VMPower supply for driver division
28RNFResistance connection pin for output current sense
FINFINGND
910
+
SHORT BRAKEBRAKE MODE
Q Q
R
D
CK
12
+
H2
-
H1
-
11
H2
VHBR
Hall Bias
+-+-+-+-+-+-
13
+
H3
14
H3
-
1-46 (No.22013)
Page 47
4.7 CS5960AT-X (IC571) : MPEG/Audio clock generator with VCXO
•Pin layout
UX-A7DVD
XIN
VDD
VCXO
VSS
1
2
3
4
XOUT
8
27 MHz
7
13.5 MHz
6
16.93421053 MHz
5
• Block diagram
27XIN
XOUT
VCXC
OSC
ADC
8bit
7bit
/Q
VCO
/P
11bit
PLL
/2
VDD
4.8 GP1FA550TZ (IC392) : Fiber-optic transmitter unit
•Pin layout
VSS
OUTPUT
DIVIDERS
7bit
• Pin function
27MHz
18.33421053 MHz(-3)
13.5MHz
1
Vin
2
Vcc
3
GND
321
(No.22013)1-47
Page 48
UX-A7DVD
4.9 HA12238F (IC32) : R/P Equalizer
• Pin layout
PB-NF1(L)
TEST 2
RIP
PBIN(l)
REC Return
GND
PBIN(R)
NC
TEST 3
PB-NF1(R)
31
32
33
34
35
36
37
38
39
40
PB-NF2(L)
PB-EQ(L)
30
29
+
Return SW
Return SW
+
-
EQ OUT(L)
TAI(L)
28
27
MUTE
MUTE
NC
PB OUT(L)
26
25
REC IN(L)
ALC(L)
24
23
NC
22
EQ
EQ
REC OUT(L)
21
ALC
TEST
20
(Open for nomal use)
19
Iraf
18
GND
ALC DET
17
16
Vcc
REC MUTE OFF/ON
15
MUTO ON/OFF
14
REC RETURN ON/OFF
13
TEST 4
12
ALC ON/OFF
11
1
2
PB-EQ(R)
PB-NF2(R)
3
4
TAI(R)
EQOUT(R)
5
6
NC
PB OUT(R)
7
8
ARC(R)
REC IN(R)
9
10
NC
REC OUT(R)
1-48 (No.22013)
Page 49
• Pin function
Pin No.SymbolFunction
1PB-NF2(R)PB EQ feed back
2PB-EQ(R)NAB output
3EQOUT(R)EQ output
4TAI(R)Tape input
5PBOUT(R)PB output
6NCNC pin
7REC IN(R)REC-EQ input
8ALC(R)ALC(R) signal out put
9NCNC pin
10REC OUT(R)REC output
11ALC ON/OFFMode control input
12TEST4TEST pin
13REC Return ON/OFFMode control input
14MUTE ON/OFFMode control input
15REC Return ON/OFFMode control input
16VccVcc Pin
17ALC DETALC detection signal out put
18GNDGND pin
19I REFEqua lizer reference current input
20Test modeTest modepin
21REC OUT(L)REC output
22NCNC pin
23ALC(L)ALC(L) signal out put
24REC IN(L)REC-EQ input
25NCNC pin
26PBOUT(L)PB output
27TAI(L)Tape input
28EQOUT(L)EQ output
29PB-EQ(L)NAB output
30PB-NF2(L)PB EQ feed back
31PB-NF1(L)PB EQ feed back
32TEST2TEST pin
33RIPRipple fillter
34PBIN(L)PB input
35REC-RETURNREC Return
36GNDGND pin
37PBIN(R)PB input
38NCNC pin
39TEST3TEST pin
40PB-NF1(R)PB EQ feed back
1VDDPower and ground for the input buffers and the core logic.
2DQ0Data inputs/outputs are multiplexed on the sam e pins.
3VDDQIsolated power supply and ground for the output buffers to provlde improved nolse immunity.
4DQ1Data inputs/outputs are multiplexed on the sam e pins.
5DQ2Data inputs/outputs are multiplexed on the sam e pins.
6VSSQIsolated power supply and ground for the output buffers to provlde improved nolse immunity.
7DQ3Data inputs/outputs are multiplexed on the sam e pins.
8DQ4Data inputs/outputs are multiplexed on the sam e pins.
(No.22013)1-51
Page 52
UX-A7DVD
4.12 LA730 54-X (IC601) : Video driver
• Pin layout & Block diagram
363534333231302928272625242322212019
75
DRIVER
LPF
2Step
Amp1
C_OFFSET
DC_CTL
CLAMP
123456789101112131415161718
75
DRIVER
LPF1
2Step
Amp2
Y/C
MIX
75
DRIVER
LPF1
2Step
Amp3
CLAMP
SYNC
SEP
75
DRIVER
2Step
Amp4
PEDESTAL
CLAMP
• Pin function
Pin No.SymbolI/OFunction
1VCC1-VCC except for 75ohm driver
2COMPOSITE.INIInput composite
3SQUEEZE.SWISelecting squeeze mode
4LETTER-BOX.SWISelecting letter-box mode
5MUTE-SW-1IComposite/S signal mute selection
6C-INIInput Chroma signal
7GND11-Composite/S GND exce pt for 75ohm driver
8Y-IN-1IInput Y signal
9YC-MIX.SWISelecting of doing Y/C-MIX or not
10SIGNAL-IN.SWISelection of a kind of signal
11Y-IN-2IInput component Y or baseband signal
12MUTE-SW-2IComponent signal mute selection
13LPF.SWISelection of a kind of component LPF
14CB.INIInput component or baseband signal
15AMP.SW-2ISelecting amplifier gain for component signal
16CR.INIInput component or baseband signal
17GND12-Component GND except for 75ohm driver
18REGOCapacitor terminal for regulator
19DRIVE.SW-2I2drive/1drive select for component signal
20GND26-CR-GND for 75ohm driver
21CR.OUTO75ohm driver output of pin16 input
22GND25-CB-OUT for 75ohm driver
23CB.OUTO75ohm driver output of pin14 input
24VCC22-Component Vcc for 75ohm driver
25Y-OUT-2O75ohm driver output of pin 11 input
26GND24-Component Y out for 75ohm driver
27GND23-Y out for 75ohm driver
28Y-OUT-1O75ohm driver output of pin8 input
29GND22-Chroma out for 75ohm driver
30C-DC.OUTODC voltage output for S1,S2
31C-OUTO75ohm driver output of pin6 input
32GND21-Composite out for 75ohm driver
33COMPOSITE-OUTO75ohm driver output of pin2 input
34VCC21-Composite/S Vcc for 75ohm driver
35DRIVE.SW-1I2drive/1drive select for composite/S signal
36AMP.SW-1ISelecting amplifier gain for composite /S signal
LPF1LPF2
CLAMP
75
DRIVER
LPF1LPF2LPF1LPF2
2Step
Amp5
PEDESTAL
CLAMP
75
DRIVER
2Step
Amp6
PEDESTAL
CLAMP
VCC
REG
1-52 (No.22013)
Page 53
4.13 L4909 (IC 212) : Regulator
A
•Pin layout
123456789101112131415
UX-A7DVD
• Block diagram
REF
REF+20%
EN1
EN2
EN3
OC
TRIG
GND
THERMAL
SHUTDOWN
6
7
9
5
4
8
ENABLE
CONTROL
OVER
CURRENT
CHECK
REFERENCE
GENERATOR
REG1
REG2
REG3
• Pin functions
Pin No.SymbolFunction
1FB1REG1 feedback voltage input
2VO1REG1 output voltage
3VINAInput DC supply voltage
4TRIGTrigger for external SCR (crowbar protection)
5OCOver current warning output
6EN1REG1 enable input
7EN2REG2 enable input
8GNDAnalog ground
9EN3REG3 enable input
10FB3REG3 feedback voltage input
11VO3REG3 output voltage
12N.C.Not connected
13VINBInput DC supply voltage
14VO2REG2 output voltage
15FB2REG2 feedback voltage input
1DISerial data and clock input pin for control.
2CEChip enable pin.
3VSSGround pin.
4LOPOUTOutput pin of general-purpose operation amplifier.
5LINMNon-inverted input pin of general-purpuse operation amplifier.
6LINPNon-inverted input pin of general-purpuse operation amplifier.
7LOUTATT + equalizer output pin.
8LSBCapacitor and resistor connection pin comprising filters for bass and super-bass band.
9LBASS2Capacitor and resistor connection pin comprising filters for bass and super-bass band.
10LBASS1Capacitor and resistor connection pin comprising filters for bass and super-bass band.
11LTRECapacitor and resistor connection pin comprising treble band filter.
12LVRINVolume input pin.
13LSELOInput selector output pin.
14L5Input signal pin.
15L4Input signal pin.
16L3Input signal pin.
17L2Input signal pin.
18L1Input signal pin.
19Vref0.5 x VDD voltage generation block for analog ground.
20R1Input signal pin.
21R2Input signal pin.
22R3Input signal pin.
23R4Input signal pin.
24R5Input signal pin.
25RSELOInput selector output pin.
26RVRINVolume input pin.
27RTRECa pacitor connection pin comprising treble band filter.
28RBASS1Capacitor and resistor connection pin comprising filter for bass and super-bass band.
29RBASS2Capacitor and resistor connection pin comprising filter for bass and super-bass band.
30RSBCapacitor and resistor connection pin comprising filter for bass and super-bass band.
31ROUTATT + equalizer output pin.
32RINPNon inverted input pin of general-purpose operation amplifier.
33RINMNon inverted input pin of general purpose operation amplifier.
34ROPOUTOutput pin of general-purpose operation amplifier.
35VDDSupply pin.
36CLSerial data and clock input pin for control.
1M5IControl signal for DAC
2DINIDigital data input
3LRCKIL and R clock for DAC
4BCKIBit clock for DAC
5M3IControl signal for DAC
6DVDD2-Power supply
7CKO-Non connect
8DVSS2-Connect to ground
9M2IControl signal for DAC
10M1ICo ntrol signal for DAC
11OUT1CO Analog output 1
12AVDD1-Power supply
13OUT1DO Analog output 1
14AVSS1-Connect to GND
15AVSS2-Connect to GND
16OUT2DO Analog output 2
17AVDD2-Power supply
18OUT2CO Analog output 2
19M9ICo ntrol signal for DAC
20DVSS2-Connect to GND
21XOUT-Non connect
22XIN-Non connect
23VCOFIVCO Frequency
24DVDD1-Power supply D+5V
25M7-Connect to GND
26M8-Connect to GND
27M4ICo ntrol signal for DAC
28M6IClock for control signal
1MROMulti-path rectifier output
2MPTHMulti-path detector output
3TCONTest control input pin
4OSCOOscillator output
5OSCIOscil lator inp ut
6VSSDDigital GND
7VDDDDigital supply voltage (5V)
8DAVNData available output
9SDAI2C-bus serial dat a I/O
10SCLI2C-bus serial clock input
11PSWNPause switch output
12MADSlave address input
13AFINAudio si gnal input
14VDDAAnalog supply voltage
15VSSAAnalog GND
16MPXMultiplex input signal
17VrefReference voltage output
18SCOUTBand-pass filter output
19CINComparator input
20LVINLevel input
5RESET
6VSS-Connect to ground
7VDD_3.3-Power supply terminal 3.3V
8INT
9NC-Non connect
10NC-Non connect
11NC-Non connect
12NC-Non connect
13VDD_2.5-Power supply terminal 2.5V
14VSS-Connect to ground
15NC-Non connect
16NC-Non connect
17NC-Non connect
18NC-Non connect
19VSS-Connect to ground
20VDD_3.3-Power supply 3.3V
21VDATA0O Video data bus output. Byte serial CbYCrY data synchronous with VCLK.
22VDATA1O Video data bus output. Byte serial CbYCrY data synchronous with VCLK.
23VDATA2O Video data bus output. Byte serial CbYCrY data synchronous with VCLK.
24VDATA3O Video data bus output. Byte serial CbYCrY data synchronous with VCLK.
25VDATA4O Video data bus output. Byte serial CbYCrY data synchronous with VCLK.
26VDATA5O Video data bus output. Byte serial CbYCrY data synchronous with VCLK.
27VDATA6O Video data bus output. Byte serial CbYCrY data synchronous with VCLK.
28VDATA7O Video data bus output. Byte serial CbYCrY data synchronous with VCLK.
29VSYNC
30HSYNC
31VSS-Connect to ground
32VDD_3.3-Power supply terminal 3.3V
IRead strobe input
IRead/write strobe input
O Transfer not complete / data acknowledge.
Active LOW to indicate host initiated transfer is complete.
IActive LOW : reset signal input
O Host interrupt signal output
I/O Vertical sync. Bi-directional, the decoder output the top border of a new field on the first
HSYNC after the falling edge of VSYNC.
I/O Horizontal sync. The decoder begins outputting pixel data for a new horizontal line after the
falling (active) edge of HSYNC.
1-60 (No.22013)
Page 61
Pin No.SymbolI/ODescription
33NC-Non connect
34NC-Non connect
35NC-Non connect
36VDD_2.5-Power supply terminal 2.5V
37VSS-Connect to ground
38NC-Non connect
39NC-Non connect
40NC-Non connect
41NC-Non connect
42NC-Non connect
43PIO0I/O Programmable I/O terminal
44VSS-Connect to ground
45VDD_3.3-Power supply terminal 3.3V
46PIO1I/O Programmable I/O terminal
47PIO2I/O Programmable I/O terminal
48PIO3I/O Programmable I/O terminal
49PIO4I/O Programmable I/O terminal
50PIO5I/O Programmable I/O terminal
51PIO6I/O Programmable I/O terminal
52PIO7I/O Programmable I/O terminal
53MDATA0I/O SDRAM data
54MDATA1I/O SDRAM data
55VDD_3.3-Power supply terminal 3.3V
56VSS-Connect to ground
57MDATA2I/O SDRAM data
58MDATA3I/O SDRAM data
59MDATA4I/O SDRAM data
60MDATA5I/O SDRAM data
61MDATA6I/O SDRAM data
62MDATA7I/O SDRAM data
63MDATA15I/O SDRAM data
64VDD_3.3-Power supply terminal 3.3V
65VSS-Connect to ground
66MDATA14I/O SDRAM data
67VDD_2.5-Power supply terminal 2.5
68VSS-Connect to ground
69MDATA13I/O SDRAM data
70MDATA12I/O SDRAM data
71MDATA11I/O SDRAM data
72MDATA10I/O SDRAM data
73MDATA9I/O SDRAM data
74VDD_3.3-Power supply terminal 3.3V
75VSS-Connect to ground
76MDATA8I/O SDRAM data
77LDQMO SDRAM Lower or upper mask
78SD-CLKO SDRAM Clock
UX-A7DVD
(No.22013)1-61
Page 62
UX-A7DVD
Pin No.SymbolI/ODescription
79CLKSELISelects SYSCLK or VCLK as clock source. Normal operation is to tie HIGH.
80MADDR9O SDRAM address
81MADDR8O SDRAM address
82VDD_3.3-Power supply terminal 3.3V
83VSS-Connect to ground
84MADDR7O SDRAM address
85MADDR6O SDRAM address
86MADDR5O SDRAM address
87VDD_2.5-Power supply terminal 2.5V
88VSS-Connect to ground
89MADDR4O SDRAM address
90MWE
91SD-CAS
92VDD_3.3-Power supply terminal 3.3V
93VSS-Connect to ground
94SD-RAS
95SD-CS0
96SD-CS
97SD-BS
98MADDR10O SDRAM address
99MADDR0O SDRAM address
100VDD_3.3-Power supply terminal 3.3V
101VSS-Connect to ground
102MADDR1O SDRAM address
103MADDR2O SDRAM address
104MADDR3O SDRAM address
105RESERVEDITie to VSS or VDD_3.3 as specified in table 1
106NC-Non connect
107NC-Non connect
108RESERVEDITie to VSS or VDD_3.3 as specified in table 1
109NC-Non connect
110RESERVEDITie to VSS or VDD_3.3 as specified in table 1
111RESERVEDITie to VSS or VDD_3.3 as specified in table 1
112RESERVEDITie to VSS or VDD_3.3 as specified in table 1
113DAI-LRCKIPCM left/right clock
114DAI-BCKIPCM input bit clock
115VDD_3.3-Power supply 3.3V
116VSS-Connect to ground
117DAI-DATAIPCM data input
118DA-DATA3O PCM data output. Eight channels. Serial audio samples relative to DA_BCK and DA_LRCK
119DA-DATA2O PCM data output. Eight channels. Serial audio samples relative to DA_BCK and DA_LRCK
120DA-DATA1O PCM data output. Eight channels. Serial audio samples relative to DA_BCK and DA_LRCK
121DA-DATA0O PCM data output. Eight channels. Serial audio samples relative to DA_BCK and DA_LRCK
122DA-LRCKO PCM left clock. Identifies the channel for each sample
123VDD_3.3-Power supply terminal 3.3V
124VSS-Connect to ground
/MADDR11O Active LOW SDRAM chip select 1 or use as MADDR11 for larger SDRAM
O SDRAM write enable
O Active LOW SDRAM column address
O Active LOW SDRAM row address
O Active LOW SDRAM chip select 0
O SDRAM bank select
1-62 (No.22013)
Page 63
UX-A7DVD
Pin No.SymbolI/ODescription
125DA-XCKI/O Audio external frequency clock input or output
126DA-BCKO PCM bit clock output
127DA-IECO PCM data out in IEC-958 format or compressed data out in IEC-1937 format
128VDD_2.5-Power supply terminal 2.5V
129VSS-Connect to ground
130NC-Non connect
131VSS_DAC-Connect to ground for analog video DAC
132VSS_VIDEO-Connect to ground for analog video
133CVBSO DAC video output format : CVBS. Macrovision encoded
134VDD_DAC-Power supply terminal for analog vid eo DAC
135VDD_VIDEO-Power supply terminal for analog video
136NC-Non connect
137VSS_DAC-Connect to ground for analog video DAC
138VSS_VIDEO-Connect to ground for analog video
139CVBS/G/YO DAC video output format. Macrovision encoded
140VDD_DAC-Power supply terminal for analog vid eo DAC
141VDD_VIDEO-Power supply terminal for analog video
142NC-Non connect
143VSS_DAC-Connect to ground for analog video DAC
144VSS_VIDEO-Connect to ground for analog video
145Y/B/UO DAC video output format. Macrovision encoded
146VDD_DAC-Power supply terminal for analog vid eo DAC
147VDD_VIDEO-Power supply terminal for analog video
148NC-Non connect
149VSS_DAC-Connect to ground for analog video DAC
150VSS_VIDEO-Connect to ground for analog video
151C/R/VO DAC video output format. Macrovision encoded
152VDD_DAC-Power supply terminal for analog vid eo DAC
153VDD_VIDEO-Power supply terminal for analog video
154VSS_RREF-Connect to ground for analog video
155RREFO Reference resistor. Connecting to pin 154
156VDD_RREF-Power supply terminal for analog video 3.3V
157A_VSS-Power supply terminal for analog PLL 3.3V
158SYSCLKIOptical system clock. Tie to A_VDD through a 1K ohm resistor
159VCLKISystem clock input
160A_VDD-Power supply terminal for analog PLL 3.3V
161DVD-DATA0/CD-DATAISerial CD data. This pin is shared with DVD compressed data DVD-DATA0
162DVD-DATA1/CD-LRCKIProgrammable polarity 16-bit word synchronization to the decoder.
This pin is shared with DVD compressed data DVD-DATA1
163DVD-DATA2/CD-BCKICD bit clock. Decoder accept multiple BCK rates. This pin is shared with DVD compressed
DVD-DATA2
164DVD-DATA3/CD-C2POIAsserted HIGH indicates a corrupted byte. This pin is shared with D VD compressed data
DVD-DATA3
165DVD-DATA4/CDGSDATAIDVD parallel compressed data from DVD DSP. or CD-G data indicating serial sub code
data input
166VSS-Connect to ground
167VDD_3.3-Power supply terminal 3.3V
(No.22013)1-63
Page 64
UX-A7DVD
Pin No.SymbolI/ODescription
168DVD-DATA5/CDG-VFSYIDVD parallel compressed data from DVD DSP. or CD-G frame sync indicating frame-start
or composite synchronization input.
169DVD-DATA6/CDG-SOS1IDVD parallel compressed data from DVD DSP. or CD-G block sync indicating block-start
synchronization input
170DVD-DATA7/CDG-SCLKIDVD parallel compressed data from D VD DSP. or CD-G clock indicating sub code data
clock input or output
171VDACKIIn synchronous mode, bit stream data acknowledge. Asserted when DVD data is valid. Po-
larity is programmable
172VREQUESTO Bit stream request
173VSTROBEIBit stream strobe
174ERRORIError in input data
175VDD_3.3-Power supply terminal 3.3V
176RESERVEDITie to VSS or VDD_3.3 as specified in table 1
177VDD_3.3-Power supply terminal 3.3V
178VSS-Connect to ground
179NC-Non connect
180RESERVEDITie to VSS or VDD_3.3 as specified in table 1
181NC-Non connect
182HADDR0IHost address bus. 3-bit add ress bus selects one of eight host interface registers
183HADDR1IHost address bus. 3-bit add ress bus selects one of eight host interface registers
184HADDR2IHost address bus. 3-bit add ress bus selects one of eight host interface registers
185RESERVEDITie to VSS or VDD_3.3 as specified in table 1
186RESERVEDITie to VSS or VDD_3.3 as specified in table 1
187RESERVEDITie to VSS or VDD_3.3 as specified in table 1
188VSS-Connect to ground
189VDD_2.5-Power supply terminal 2.5V
190RESERVEDITie to VSS or VDD_3.3 as specified in table 1
191VSS-Connect to ground
192VDD_3.3-Power supply terminal 3.3V
193RESERVEDITie to VSS or VDD_3.3 as specified in table 1
194RESERVEDITie to VSS or VDD_3.3 as specified in table 1
195RESERVEDITie to VSS or VDD_3.3 as specified in table 1
196RESERVEDITie to VSS or VDD_3.3 as specified in table 1
197HDATA7I/O The 8-bit bi-derectional host data throu gh which the host writes data to the decoder code.
198VSS-Connect to ground
199HDATA6I/O The 8-bit bi-derectional host data throu gh which the host writes data to the decoder code.
200HDATA5I/O The 8-bit bi-derectional host data throu gh which the host writes data to the decoder code.
201HDATA4I/O The 8-bit bi-derectional host data throu gh which the host writes data to the decoder code.
202HDATA3I/O The 8-bit bi-derectional host data throu gh which the host writes data to the decoder code.
203HDATA2I/O The 8-bit bi-derectional host data throu gh which the host writes data to the decoder code.
204VDD_3.3-Power supply terminal 3.3V
205VSS-Connect to ground
206HDATA1I/O The 8-bit bi-derectional host data throu gh which the host writes data to the decoder code.
207HDATA0I/O The 8-bit bi-derectional host data throu gh which the host writes data to the decoder code.
208CS
IHost chip select input
1-64 (No.22013)
Page 65
4.21STK402-050 (IC111) : 2ch AF power amp.
•Pin layout
1 ~ 15
• Block diagram
4
R1
TR7
TR9
UX-A7DVD
8
R13
R8
TR12
TR13
R9
TR1E
C2
R15R14
R11
R12
R10
TR16
R14
TR4
TR6
R6
R7
TR8
TR10
C1
1
TR2TR1
2
TR3
R2
D1
TR5
R3
R4
R5
9
SUB
151411106712513
(No.22013)1-65
Page 66
UX-A7DVD
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.22013)
Printed in Japan
200303WPC
Page 67
UX-A7DVD
SCHEMATIC DIAGRAMS
MICRO COMPONENET SYSTEM
UX-A7DVD
CD-ROM No.SML200303
STANDBY/ON
123
DISPLAY
456
CLOCK/TIMER
789
AP
SLEEP
OFF
10 0 +10
DVD
PLAY MODE
REV. MODE
COLOR
LEVEL
ON SCREEN
ZOOM
DIGEST
DIMMER
ANGLE
SUB TITLE
AUDIO
TOP MENU
MENU CHOICE
ENTER
CANCEL
SET
DVD
TAP
E
AUX/MD
F
M/AM
SELEC
T
RETURN
STROBE
PREV.
NEXT
GROUP SKIPÐ+SLOW
SLOW
KEY
DIGITAL
3D PHONIC AHB PRO
CONTROL
ECHO
FADE
BASS/
KEY
FM MODE
MUTING
TREBLE
CONTROL
SHIF
T
VOLUM
E
RM-SUXA7DVDU REMOTE CONTROL
M
COMPACT
SUPER VIDEO
DIGITAL
Contents
Block diagrams
Standard schematic diagrams
Printed circuit board
DVD/SUPER VCD/VCD/CD
MULTI COLOR
AUX/MD
REV.MOD
E
F
DVD
TAP
E
TO REVERSE
AU
UX-A7DVD
DIGITAL
COMPACT
SUPER VIDEO
DISPLAY
TREBL
E
BASS
M/AM
3¥WAY SPEAKER SYSTE
M3¥WAY SPEAKER SYSTE
Area suffix
US ------------------- Singapore
UN ------------------------ Asean
2-1
2-3
2-9~12
COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
No.22013SCH
Mar. 2003
Page 68
UX-A7DVD
In regard with component parts appearing on the silk-screen pr inted side (par ts 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.)
DVD servo board (forward side)Loading motor boardDVD servo board (reversse side)
C10
C7
C539
R558
S2
K501
C530
C531
R501
R502
D501
K504
C540
IC501
C556
C454
K506
C557
C511
C571
K571
C512
C513
TP80
TP82
TP84
R427
C514
K303
C402
R425
TP401
CN502
C308
C401
R402
IC402
R432
K401
TP92
TP93
C8
C9
K402
C411
R411
R412
R413
R541
R545
R542
C515
TP81
TP83
TP85
TP86
TP87
C342
R538
R540
R539
R543
C341
TP303 TP304
R431
C301
R416
C404
C403
R536
R535
R537
C406 C407
R215
R534
R533
C127
C128
TP101
R529
R527
R524
R525
R526
R255
TP305
R331
R209
R532
C534
C124 C125
TP104 TP105
C129
C337
R330
C350
C349
R208
TP302
TP301
C302
C303
R414 R415
C567
C252
C201
C304
C331
C330
R329
TP307
TP306
TP308
TP309
C405
C109
R108
R109
TP103
TP102
C310
R111
C110
C332
R332
C327
C306
R106
R107
C135
C137
R251
C217
R202
C329
C321
C320
R326
R325
R324
C328
R323
R322
R321
R320
C324
C318
R318
R319
TP27 TP28
TP25
TP22
TP21
TP19 TP20
TP17
TP12 TP13
C106
C105
C251
R252
R201
TP40
TP41
TP14 TP15
R116
C113
TP10 TP11
C253
R253
C261
C262
TP31
TP32
TP33
TP34
TP35
TP36
TP37
TP38
TP39
TP42
TP43
TP7
R117
TP5
IC101
TP9
C115
C116
R120
R119
C264
C260
TP44
TP45
TP16
TP29
TP26
TP18
K101
R127
C122
C255
R254
C263
TP1
R125
C121
TP48
TP50
TP49
R258
TP3
TP4
TP30
TP46
TP24
C117
C118
CN202
R259
IC251
TP23
TP47
R124
C257 C258 C259
CN201
TP2
CN101
TP6
R217
R218
C215
D202
5
C333
C334
K301
R422
R129
R128
R333
K302
TP408
TP407
TP403
TP404
TP405 TP406
C119
C256
R256
R220
C206
C207
R205
IC201
C351
R327
C315
R301
R410
R408
R406
R404
C144
R130
R102
R101
R103
C348
R423 R424
R421
R110
R105
R104
C213 C214
R340
R341
R409
R407
R405
R403
R428
C111
C112
C208
R219
C205
R206 R207
R204
R203
C209
4
D201
C204
C326
C325
R328
C323
C322
R317
C319
C317
C316
C314
C313
C312
C311
3
C141
R114
C142
R115
C143
C146
C138
C139
D101
Q103
R112 R113
C145
2
Q102
C103
Q101
C102
C203
R222
R210
R211
R221
R213
R334
TP402
C566
C524 C525
C126
C120
R126
C210 C211
R214
C338
R336
C533
R528
R546
C123
R516
R520
C218
R212
C216
C212
C339
K502
C536
C535
R552
C526
C522
C520
C518
C516
R509
R512
R223
R338
R339
R507
R521
R216
C340
R337
C517
R517
C450
R513
R522
C1
C5
IC401
IC451
R514
R518
C3
R508
R510
R506
R519
C2
C4
IC301
R515
C343
C344 C345 C346 C347
K304
R511
R504
K505
IC455
IC504
C510
IC454
C453
C509
R453
R547
C508
IC503
C507
C501
C502
C503
C504
C541
C505 C506
R548
K566
K564
K565
K563
K562
C527
C528
TP505
R573
R572
R571
K561
R575
C6
R551
C572
C529
R577
K580
R555
K579
K578
K577
K575
R576
C573
IC571
C544
C547
C578
R574
X571
C577
S1
TP64
TP61
TP53
TP54
TP51
TP57
TP59
TP74
TP58
TP60
TP73
TP72
TP91
TP70
TP62
TP56
TP55
TP52
TP63
TP65
TP66
TP67
CN503
TP68
TP69
TP71
1
ABCDEFGH
2-12
Page 81
UX-A7DVD
5
Trans board
EP901
4
W923
C9003
D9323
D9324
D9321
3
C9323
C9321
D9322
W921
W922
FT932
C9005
C9006
LF901
FT921 FT922
FT931
FT912
FT911
CN901
FT941 FT942
S9001
T9001
2
1
A
BC
D
2-13
Page 82
UX-A7DVD
5
Cassette board
SW1
SW2
D1
4
Q305
R310
C313
R104
R304
D340
C310
R102
R121
R221
C107
L303
R303
R108
R335
R353
R339
C113
Q343
R313
Q302
R315
C314
R314
C308
L301
3
R327
C316
C319
VR31
C121
C221
2
R302
R301
C301
C103
Q342
C207
R208
C105
C205
C304
C106
R101
C104
R306
CN34
R106
C306
Q344
R105
R205
R110
C102
R344
Q345
C307
R345
R336
C340
R206
C206
R346
R210
R305
C300
C341
C110
R107
W1
Q346
VR37
R372
R109
Q372
CN33
C371
R116
P1
IC32
C109
CN31
Q371
C101
R371
C374
Q375
R376
R216
C376
R204
R201
C202
C204
C201
W1
D375
R375
C213
C342
R207
Q376
C209
FW100
IC1
R338
R337
CN32
C203
R202
CN1
C210
R340
C331
R342
Q347
R347
SW6
R343
SW5
R341
IC33
1
2-14
A
BC
D
Page 83
< MEMO >
UX-A7DVD
Page 84
UX-A7DVD
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.22013SCH)
Printed in Japan
200303
Page 85
PARTS LIST
[ UX-A7DVD ]
* All printed circuit boards and its assemblies are not available as service parts.
UX-A7DVD
Area suffix
US ------------------- Singapore
UN ------------------- Asean
- Contents -
Exploded view of general assembly and parts list (Block No.M1)
Speaker assembly and parts list (Block No.M2)
DVD mechanism assembly and parts list (Block No.MJ)
DVD Loading mechanism assembly and parts list (Block No.MN)
Cassette mechanism assembly and parts list (Block No.MP)
Electrical parts list (Block No.01~07)
Packing materials and accessories parts list (Block No.M3,M5)