Page 1
SERVICE MANUAL
MICRO COMPONENT SYSTEM
MB343200412
UX-Q3S,UX-Q3W,UX-Q3A,UX-Q3B
Area suffix (UX-Q3S)
UF -------------- China
UT --------------- Taiwan
A ---------------- Australia
(CA-UXQ3S)(SP-UXQ1S)
(CA-UXQ3W)(SP-UXQ1W)
(CA-UXQ3A)(SP-UXQ1A)
(CA-UXQ3B)(SP-UXQ1B)
Area suffix (UX-Q3W,UX-Q3A)
UF -------------- China
UT --------------- Taiwan
Area suffix (UX-Q3B)
UF -------------- China
(SP-UXQ1S)
(SP-UXQ1W)
(SP-UXQ1A)
(SP-UXQ1B)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.MB343
2004/12
Page 2
SPECIFICATION
CD receiver (CA-UXQ3S)
Amplifier Output power 20 W + 20 W at 4 Ω (10% THD)
Input terminals (Analogue) AUX × 1
LEVEL1:500 mV/47 kΩ
LEVEL2:250 mV/47 kΩ
Output terminals (Analogue) Speaker × 1, 20 W/4 Ω
Impedance 4 Ω - 16 Ω
Headphone ( × 1), 25 mW/32 Ω
Impedance 16 Ω - 1 kΩ
Tuner Frequency FM 87.50 MHz - 108.00 MHz
AM 522 kHz - 1 710 kHz (A only)
530 kHz - 1 710 kHz , 531 kHz - 1 710 kHz
CD player Playable discs Audio CDs, MP3
Cassette deck Frequency response Normal (type l):60 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS)
General Power requirement AC 240 V , 50 Hz
Power consumption 55 W (at operation) 1 W (on standby)
Dimensions 165 mm (W) × 200 mm (H) × 355 mm (D)
Mass (approx.) 4.6 kg
Micro component system (UX-Q3S)
Dimensions 435 mm (W) × 200.5 mm (H) × 355 mm (D)
Mass (approx.) 8.4 kg
Specifications are subject to change without prior notice.
1-2 (No.MB343)
Page 3
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purposes. For continued protection, no changes should be made
to the original design unless authorized in writing by the
manufacturer. Replacement parts must be identical to
those used in the original circuits. Services should be performed by qualified personnel only.
(2) Alterations of the design or circuitry of the product should
not be made. Any design alterations of the product should
not be made. Any design alterations or additions will void
the manufacturers warranty and will further relieve the
manufacture of responsibility for personal injury or property
damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features
are identified by shading on the schematics and by ( ) on
the Parts List in the Service Manual. The use of a substitute
replacement which does not have the same safety characteristics as the recommended replacement parts shown in
the Parts List of Service Manual may create shock, fire, or
other hazards.
(4) The leads in the products are routed and dressed with ties,
clamps, tubings, barriers and the like to be separated from
live parts, high temperature parts, moving parts and/or
sharp edges for the prevention of electric shock and fire
hazard. When service is required, the original lead routing
and dress should be observed, and it should be confirmed
that they have been returned to normal, after 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, 1,000Ω per volt or more sensitivity
in the following manner. Connect a 1,500Ω 10W resistor
paralleled by a 0.15µF AC-type capacitor between an ex-
posed 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.).
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
0.15 F AC TYPE
Place this
probe on
1500 10W
Good earth ground
1.2 Warning
(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.
1.3 Caution
Burrs formed during molding may be left over on some parts
of the chassis.
Therefore, pay attention to such burrs in the case of preforming repair of this system.
1.4 Critical parts for safety
In regard with component parts appearing on the silk-screen
printed side (parts side) of the PWB diagrams, the parts that are
printed over with black such as the resistor ( ), diode ( )
and ICP ( ) or identified by the " " mark nearby are critical
for safety. When replacing them, be sure to use the parts of the
same type and rating as specified by the manufacturer.
(This regulation dose not Except the J and C version)
each exposed
metal part.
(No.MB343)1-3
Page 4
1.5 Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.5.1 Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products.
Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(caption)
Anti-static wrist strap
1M
Conductive material
(conductive sheet) or iron palate
(3) Handling the optical pickup
• 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.)
• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily
destroy the laser diode.
1.6 Handling the traverse unit (optical pickup)
(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the
replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a
time when attaching it to the connector.
(3) Handle the flexible cable carefully as it may break when subjected to strong force.
(4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
1.7 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the pickup unit.
• Apply solder to the short land sections before the flexible wire is disconnected from the connecto on the servo board. (If the flexible
wire is disconnected without applying solder, the 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.
1-4 (No.MB343)
Pickup
Connector
Card wire
Page 5
1.8 Important for laser products
!
1.CLASS 1 LASER PRODUCT
2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.
3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.
4.CAUTION : The CD,MD and DVD player uses invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
REPRODUCTION AND POSITION OF LABELS
WARNING LABEL
CAUTION : Visible and Invisible
laser radiation when open and
interlock failed or defeated.
AVOID DIRECT EXPOSURE TO
BEAM. (e)
CLASS 1
LASER PRODUCT
ADVARSEL : Synlig og usynlig
laserstråling når maskinen er
åben eller interlocken fejeler.
Undgå direkte eksponering til
stråling. (d)
CAUTION : Visible and Invisible
laser radiation when open and
interlock failed or defeated.
AVOID DIRECT EXPOSURE TO
BEAM. (e)
VARNING : Synlig och
osynling laserstrålning när
den öppnas och spärren är
urkopplad. Betrakta ej
strålen. (s)
VARNING : Synlig och
osynling laserstrålning när
den öppnas och spärren är
urkopplad. Betrakta ej
strålen. (s)
VARO : Avattaessa ja suojalukitus
ohitettuna tai viallisena olet alttiina
näkyvälle ja näkymättömälle
lasersäteilylle. Vältä säteen
kohdistumista suoraan itseesi. (f)
ADVARSEL : Synlig og usynlig
laserstråling når maskinen er
åben eller interlocken fejeler.
Undgå direkte eksponering til
stråling. (d)
VARO : Avattaessa ja suojalukitus
ohitettuna tai viallisena olet alttiina
näkyvälle ja näkymättömälle
lasersäteilylle. Vältä säteen
kohdistumista suoraan itseesi. (f)
(No.MB343)1-5
Page 6
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe ADJUSTMENT.
1-6 (No.MB343)
Page 7
SECTION 3
DISASSEMBLY
3.1 Main body section
3.1.1 Removing the rear cover
(See Figs.1 and 2)
(1) From the back side of the main body, remove the six
screws A attaching the rear cover. (See Fig.1.)
(2) From the bottom side of the main body, remove the three
screws B attaching the rear cover. (See Fig.2.)
(3) Remove the rear cover from the main body.
A
B
Rear cover
A A
Fig.1
Rear cover
Fig.2
(No.MB343)1-7
Page 8
3.1.2 Removing the side panels (L)/(R)
r
(See Fig.3)
• Remove the rear cover.
(1) From the bottom side of the main body, remove the two
screws C attaching the side panels(L)/(R).
(2) Slide the side panels(L)/(R) in the direction of the arrow and
remove the side panels(L)/(R).
C
Side panel(R)
3.1.3 Removing the top cover
(See Figs.4 and 5)
• Remove the rear cover and side panels(L)/(R).
(1) From the left side of the main body, disconnect the card
wires from the connectors (CN703
board. (See Fig.4.)
(2) Remove the screw D and divider attaching the top cover.
(See Fig.4.)
(3) From the right side of the main body, disconnect the card
wire from the connector CN105
Fig.5.)
(4) Disconnect the wire from the connector CN108 on the main
board. (See Fig.5.)
(5) From the both sides of the main body, remove the two
screws E attaching the top cover. (See Figs.4.)
(6) From the right side of the main body, remove the screw F
and divider attaching the top cover. (See Figs.5.)
(7) Release the joints a and remove the top cover. (See Figs.4
and 5.)
, CN709) on the micon
on the main board. (See
C
Top cover
CN703 CN709
Top cover
a
EF
Side panel(L)
Fig.3
Fig.4
CN108
a
Micon board
CN105
ED
Divide
1-8 (No.MB343)
Main board
Fig.5
Page 9
3.1.4 Removing the front panel assembly
(See Figs.6 to 8)
• Remove the rear cover, side panels(L)/(R) and top cover.
(1) From the left side of the main body, disconnect the card
wires from the connectors (CN702
board. (See Fig.6.)
(2) From the right side of the main body, disconnect the earth
wire from the micon board. (See Fig.7.)
(3) From the both sides of the main body, release the joints b.
(See Figs.6 and 7.)
(4) From the bottom side of the main body, release the joint c.
(See Fig.8.)
(5) Remove the front panel assembly.
, CN710) on the micon
CN710 CN702
Micon board
Front panel assembly
b
Fig.6
b
Earth wire
Front panel assembly Micon board
Fig.7
c
Front panel assembly
Fig.8
(No.MB343)1-9
Page 10
3.1.5 Removing the fan
(See Figs.9 and 10)
• Remove the rear cover, side panels(L)/(R) and top cover.
(1) From the back side of the top cover, remove the screw G
attaching the fan. (See Fig.9.)
(2) Take out the fan.
Reference:
When attaching the fan, pass the wire through the slot d. (See
Fig.10.)
3.1.6 Removing the tuner bracket and tuner
(See Figs.9 and 10)
• Remove the rear cover, side panels(L)/(R) and top cover.
(1) From the back side of the top cover, remove the two screws
H attaching the tuner bracket. (See Fig.9.)
(2) From the inside of the top cover, remove the screw J at-
taching the tuner bracket. (See Fig.10.)
(3) Remove the tuner bracket and tuner.
Fan
G
Tuner bracket
H
3.1.7 Removing the cassette mechanism assembly
(See Fig.10)
• Remove the rear cover, side panels(L)/(R) and top cover.
(1) From the inside of the top cover, remove the four screws K
and screw L attaching the cassette mechanism assembly.
(2) Remove the cassette mechanism assembly.
Reference:
When attaching the screws J, attach the shield with them.
Fig.9
Cassette mechanism assembly
KK
Shield
L
J
K
dFanTuner
1-10 (No.MB343)
Tuner bracket
Fig.10
Page 11
3.1.8 Removing the heat sink
(See Fig.11)
• Remove the rear cover, side panels(L)/(R) and top cover.
(1) From the back side of the main body, remove the two
screws M and two screws N attaching the heat sink.
(2) Take out the heat sink from the main body.
3.1.9 Removing the heat sink bracket
(See Figs.11 and 12)
• Remove the rear cover, side panels(L)/(R) and top cover.
(1) From the back side of the main body, remove the two
screws N and two screws P attaching the heat sink bracket.
(See Fig.11.)
(2) From the top side of the main body, remove the screw Q
attaching the heat sink bracket to the regulator board. (See
Fig.12.)
(3) Take out the heat sink bracket from the main body.
M
Heat sink
Heat sink bracket
N
P
Fig.11
3.1.10 Removing the HP board
(See Fig.13)
• Remove the rear cover, side panels(L)/(R), top cover and front
panel assembly.
(1) From the right side of the main body, remove the screw R
attaching the headphone board.
(2) Remove the solders from the section e on the headphone
board.
(3) Take out the headphone board from the main body.
Reference:
• Remove the parallel wire as required.
• When attaching the headphone board, pass the headphone
board through slot f.
Regulator board Heat sink bracket
Fig.12
Headphone board
f
R
Q
e
Fig.13
(No.MB343)1-11
Page 12
3.1.11 Removing the main board
(See Figs.14 and 15)
• Remove the rear cover, side panels(L)/(R), top cover and heat
sink.
Reference:
Remove the headphone board as required.
(1) From the right side of the main body, remove the two
screws S attaching the main board. (See Fig.14.)
(2) Disconnect the connectors (CN101
the main board toward this side. (See Fig.14.)
(3) Remove the solders from the section g on the main board.
(See Fig.14.)
Reference:
Remove the parallel wire as required.
3.1.12 Removing the regulator board
(See Fig.15)
• Remove the rear cover, side panels(L)/(R), top cover, heat sink
and main board.
(1) From the top side of the main body, disconnect the wire
from the connector CN902
(2) From the right side of the main body, disconnect the earth
wire from the micon board.
(3) Remove the three screws T attaching the regulator board.
(4) Take out the regulator board from the main body.
on the transformer board.
to CN104, CN106) on
CN104
Main board
g
T
S
Fig.14
CN102
CN902
CN101CN106CN103
Trans
board
Earth wire
T
Regulator board
Fig.15
1-12 (No.MB343)
Page 13
3.1.13 Removing the power transformer with trans board
(See Fig.16)
• Remove the rear cover, side panels(L)/(R), top cover, heat
sink, heat sink bracket, main board and regulator board.
(1) From the top side of the main body, remove the tie band.
(2) Disconnect the wire from the connector CN903
board.
(3) Disconnect the power cord from the connector CN901
the trans board.
(4) Remove the three screws U attaching the power transform-
er and take out the trans board from the main body.
Reference:
After attaching the trans board, fix the power cord with the new
tie band.
on the trans
on
CN903
Trans board
Tie band
Power cord
CN901
3.1.14 Removing the trans board
(See Fig.17)
• Remove the rear cover, side panels(L)/(R), top cover, heat
sink, heat sink bracket, main board, regulator board and power
transformer with trans board.
(1) From the reverse side of the trans board, remove the sol-
ders from the section h on the trans board.
(2) Remove the power transformer from the trans board.
h
U
U
Fig.16
Trans board
Fig.17
(No.MB343)1-13
Page 14
3.1.15 Removing the joint board
(See Fig.18)
• Remove the rear cover, side panels(L)/(R), top cover, heat
sink, heat sink bracket, main board, regulator board and power
transformer with trans board.
(1) From the back side of the main body, remove the two
screws V attaching the joint board.
(2) Disconnect the wires from the connectors (CN801
) on the joint board.
CN804
(3) Take out the joint board from the main body.
and
Joint board
CN804
3.1.16 Removing the Holder
(See Fig.19)
• Remove the rear cover, side panels(L)/(R), top cover, front
panel assembly, heat sink and main board.
(1) Remove the two screws W attaching the Holder to the mi-
con board.
(2) Remove the MD holder.
Micon board
CN801
Fig.18
w
w
VV
Holder
1-14 (No.MB343)
Fig.19
Page 15
3.1.17 Removing the micon board
(See Fig.20)
• Remove the rear cover, side panels(L)/(R), top cover, front
panel assembly, heat sink, main board and Holder.
(1) From the top side of the main body, disconnect the wire
from the connector CN903
(2) Disconnect the card wire from the connector CN705
micon board.
(3) Remove the screw X attaching the micon board.
(4) Disconnect the micon board from the connector CN804
the joint board.
on the trans board.
on the
on
Trans board
CN903CN705 CN804
3.1.18 Removing the CD mechanism bracket
(See Fig.21)
• Remove the rear cover, side panels(L)/(R), top cover, heat
sink, heat sink bracket, main board, regulator board, trans
board and joint board.
(1) From the top side of the main body, disconnect the wire
from the connector CN705
(2) Remove the three screws Y attaching the CD mechanism
bracket.
(3) Move the CD mechanism bracket in the direction of the ar-
row to release the claws i and remove the CD mechanism
bracket.
on the micon board.
Micon board
Joint board
Z
Fig.20
Micon board
YY
CN705
i
CD mechanism bracket
Y
Fig.21
i
(No.MB343)1-15
Page 16
3.1.19 Removing the CD mechanism assembly
(See Fig.22)
• Remove the rear cover, side panels(L)/(R), top cover, heat
sink, heat sink bracket, main board, regulator board, trans
board, joint board and CD mechanism bracket.
(1) From the top side of the main body, remove the screw Z at-
taching the CD mechanism assembly.
(2) Take out the CD mechanism assembly from the main body.
Note:
When take out the CD mechanism assembly, be careful not to
damage the CD servo board or other parts.
3.1.20 Removing the FL board
(See Fig.23)
• Remove the rear cover, side panels(L)/(R), top cover and front
panel assembly.
(1) From the inside of the front panel assembly, remove the
three screws AA attaching the FL board.
(2) Take out the FL board from the front panel assembly.
Note:
When attaching the FL board, be careful not to damage the
LCD panel.
AA
CD mechanism assembly
Fig.22
FL board
AA
Z
1-16 (No.MB343)
Fig.23
Page 17
3.1.21 Removing the key board
(See Figs.24 and 25)
• Remove the rear cover, side panels(L)/(R), top cover and front
panel assembly.
(1) From the front side of the front panel assembly, pull out the
volume knob in the direction of the arrow. (See Fig.25.)
(2) Remove the six screws AB attaching the key board. (See
Fig.24.)
(3) Take out the key board from the front panel assembly.
AB
Key board
Volume knob
AB
Fig.24
Front panel assembly
Fig.25
(No.MB343)1-17
Page 18
3.2 CD mechanism assembly section
• Remove the CD mechanism assembly from the main body.
(See "3.1.20 Removing the CD mechanism assembly".)
3.2.1 Removing the CD cover
(See Fig.1)
(1) From the top side of the CD mechanism assembly, remove
the two screws A attaching the CD cover.
(2) Remove the double-stick tape fixing the card wire.
(3) Lift the CD cover in an upward direction and remove it from
the projections a of the CD mechanism assembly.
(4) Slide the CD cover in the direction of the arrow and remove
it from the sections b.
(5) Release the lock of the connector CN4
and disconnect the card wire.
on the LED board
Double-stick tape
Card wire
CN4
A
a
b
Card wire
LED board
3.2.2 Removing the joint board
(See Fig.2)
• Remove the CD cover.
(1) From the inside of the CD cover, remove the screw B at-
taching the joint board.
(2) Remove the spacer attaching the joint board and take out
the joint board from the Clamper base.
a
A
CD mechanism assembly
Clamper base
B
Clamper base
Fig.1
Joint board
b
Spacer
1-18 (No.MB343)
Fig.2
Page 19
3.2.3 Removing the tray assembly
(See Figs.3 to 5)
• Remove the Clamper base.
(1) From the right side of the CD mechanism assembly, push
the slide cam and pull the tray assembly out of the CD
mechanism assembly in the direction of the arrow. (See
Fig.3.)
(2) From the top side of the CD mechanism assembly, remove
the two screws C attaching the tray assembly. (See Fig.4.)
(3) Remove the bushing of the tray assembly from the projec-
tions c on the CD mechanism assembly and take out the
tray assembly in an upward direction. (See Fig.4.)
3.2.4 Removing the LED board
(See Fig.5)
• Remove the Clamper base and tray assembly.
(1) From the top side of the tray assembly, remove the sec-
tions d which were fixed in bond.
(2) Remove the double-stick tape attaching the LED board and
take out the LED board.
Note:
When removing the LED board, be sure not to damage the
LED board.
Tray assembly CD mechanism assembly
Slide cam
Fig.3
C
c
c
Bushing
CD mechanism assembly
Fig.4
Tray assembly
Double-stick tape
Fig.5
Tray assembly
d
d
LED board
(No.MB343)1-19
Page 20
3.2.5 Removing the traverse mechanism assembly
(See Figs.6)
• Remove the Clamper base.
(1) From the bottom side of the CD mechanism assembly, re-
move the four screws D attaching the traverse mechanism
assembly.
(2) From the forward side of the CD servo board, remove the
double-stick tape fixing the card wire and disconnect the
card wire from the connector CN602
board.
(3) Take out the traverse mechanism assembly with the CD
servo board.
Reference:
After attaching the traverse mechanism assembly, pass the
wire through the slot e.
on the CD servo
CN602
D
CD mechanism assembly
e
CD servo board
D
D
Double-stick tape
Card wire
CD servo board
(Forward side)
Traverse mechanism assembly
Fig.6
1-20 (No.MB343)
Page 21
3.2.6 Removing the CD servo board
(See Figs.7 and 8)
• Remove the Clamper base and traverse mechanism assem-
bly.
(1) From the bottom side of the traverse mechanism assem-
bly, remove the two screws E attaching the CD servo
board. (See Fig.7.)
(2) Remove the solders from the soldered sections f on the CD
servo board. (See Fig.7.)
(3) Remove the solders from the soldered sections g to re-
move the wires (Yellow and white). (See Fig.7.)
Reference:
After attaching the wires, fix them with the spacer as before. (See Fig.7.)
(4) Remove the CD servo board in an upward direction and re-
lease the claws h in the direction of the arrow 1 to turn over
the CD servo board. (See Fig.7.)
(5) From the top side of the traverse mechanism assembly,
turn the SS gear in the direction of the arrow to move the
pickup fully in the direction of the arrow. (See Fig.8.)
(6) From the bottom side of the traverse mechanism assem-
bly, solder the short land section i on the pickup. (See
Fig.8.)
(7) Release the lock of the connector CN601
board in the direction of the arrow 2 and disconnect the
card wire. (See Fig.8.)
Caution:
• Solder the short land section i on the pickup before disconnecting the card wire from the connector CN601
servo board. If the card wire is disconnected without attaching solder, the pickup may be destroyed by static electricity.
(See Fig.9.)
• When attaching the CD servo board, be sure to remove solders from the short land section i after connecting the card
wire to the connector CN601
Fig.8.)
on the CD servo board. (See
on the CD servo
on the CD
11
h
CD servo board
SS gear
f
Wire(Yellow)
EE
Spacer
Wire(White)
g
g
h
Traverse mechanism assembly
Fig.7
CD servo board
CN601
22
Pickup
i
Traverse mechanism assembly
Fig.8
(No.MB343)1-21
Page 22
3.2.7 Removing the pickup
j
(See Figs.9 to 11)
• Remove the Clamper base and traverse mechanism assembly.
(1) From the top side of the traverse mechanism assembly, re-
move the screw F attaching the shaft holder. (See Fig.9.)
(2) Remove the shaft holder from the joint j and take out the
shaft holder from the traverse mechanism assembly. (See
Fig.9.)
(3) Remove the two screws G attaching the Rack arm and take
out the Rack arm. (See Fig.10.)
(4) Take out the feed middle gear and remove the screw shaft
of the pickup from the section k of the traverse mechanism
assembly. (See Fig.10.)
(5) Remove the pickup from the section m of the traverse
mechanism assembly and take out the pickup with the
screw shaft. (See Fig.10.)
(6) Pull the screw shaft out of the pickup. (See Fig.10.)
(7) Solder the short land section n on the pickup. (See Fig.11.)
(8) Release the lock of the connector on the pickup in the di-
rection of the arrow and disconnect the card wire. (See
Fig.11.)
Caution:
• Solder the short land section n on the pickup before discon-
necting the card wire from the connector on the pickup. If the
card wire is disconnected without attaching solder, the pickup may be destroyed by static electricity. (See Fig.11.)
• When attaching the pickup, be sure to remove solders from
the short land section n after connecting the card wire to the
connector on the pickup. (See Fig.11.)
Feed middle gear
Screw shaft
Pickup
n
Fig.10
G
Rack arm
k
m
3.2.8 Attaching the pickup
(See Figs.9 to 12.)
• See "3.2.7 Removing the pickup".
(1) Remove solder from the short land section n after connect-
ing the card wire to the connector on the pickup. (See
Fig.11.)
(2) Attach the screw shaft to the pickup. (See Fig.10.)
(3) Align the pickup to the section m of the traverse mecha-
nism assembly first, and set the end of the screw shaft of
the pickup in the sections k of the traverse mechanism as-
sembly. (See Fig.10.)
(4) Attach the Rack arm and feed middle gear. (See Fig.10.)
(5) Attach the screw shaft holder. (See Fig.9.)
(6) Turn the SS gear in the direction of the arrow 1 to move the
pickup fully in the direction of the arrow 2. (See Fig.12.)
F
Shaft holder
Pickup
Traverse mechanism assembly
Connector
Fig.11
SS gear
1
Fig.12
Card wire
2
Pickup
Traverse mechanism assembly
1-22 (No.MB343)
Fig.9
Page 23
3.2.9 Removing the feed motor
(See Figs.13 to 15)
• Remove the Clamper base and traverse mechanism assem-
bly.
(1) From the bottom side of the traverse mechanism assem-
bly, remove the solders from the soldered sections p to remove the wires (Yellow and white). (See Fig.13.)
Reference:
After attaching the wires, fix them with the spacer as before. (See Fig.13.)
(2) Remove the screw H attaching the shaft holder and take
out the shaft holder. (See Fig.14.)
(3) Remove the feed middle gear and take out the feed motor.
(See Fig.14.)
Reference:
After attaching the feed motor, pass the wires through the section q on the TM chassis. (See Fig.15.)
Wire(Yellow)
Traverse mechanism assembly
CD servo board
H
Wire(White)
Spacer
p
p
Fig.13
Shaft holder
Traverse mechanism assembly
Fig.14
TM chassis
Feed motor
Wires
Fig.15
q
(No.MB343)1-23
Page 24
3.2.10 Removing the switch board
(See Fig.16.)
• Remove the Clamper base.
(1) From the bottom side of the CD mechanism assembly, dis-
connect the card wire from the connector CN1 on the
switch board.
(2) Remove the screw J attaching the switch board.
(3) Remove the wires from the soldered sections r on the
switch board.
(4) Lift the switch board while pressing the claw s of the CD
mechanism assembly in the direction of the arrow and re-
move it from the section t.
Reference:
• Put the wires on the section u after attaching the switch
board to the CD mechanism assembly.
• Fix the claw s on the CD mechanism assembly with bonds
after attaching the switch board.
3.2.11 Removing the motor
(See Figs.16 and 17)
• Remove the Clamper base and tray assembly.
(1) From the bottom side of the CD mechanism assembly, re-
move the wires from the soldered sections r on the switch
board. (See Fig.16.)
(2) From the top side of the CD mechanism assembly, remove
the belt from the motor pulley. (See Fig.17.)
Note:
Take care not to attach grease on the belt.
(3) Remove the two screws K attaching the motor to the CD
mechanism assembly and take out the motor from the bottom side of the CD mechanism assembly. (See Fig.17.)
Reference:
Put the wires on the section u after attaching the motor to the
CD mechanism assembly. (See Fig.16.)
Switch board
r
CN1
t
CD mechanism assembly
Wires
J
Motor
s
u
CD mechanism assembly
Fig.16
K
Belt
Motor pulley
Fig.17
1-24 (No.MB343)
Page 25
3.3 Cassette mechanism assembly
3.3.1 Removing the Play/Record & Clear head
(See Fig.1~3)
(1) While moving the trigger arm on the right side of 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 as you turn the flywheel
R counterclockwise (See Fig.2 and 3).
(3) Disconnect the flexible wire from connector CN31
head amplifier & mechanism control board.
(4) Remove 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.
on the
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
(No.MB343)1-25
Page 26
3.3.2 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) Disconnect the flexible wire from connector CN31
head amplifier & mechanism control board.
(3) Disconnect connector CN32
anism control board from connector CN1
board.REFERENCE: If necessary, unsolder the 4-pin wire
soldered to the main motor.
3.3.3 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.
Head amplifier & mecha control board
of the head amplifier & mech-
on the reel pulse
on the
Main motor assembly
Capstan belt
Fig.5
Main motor assembly
CN31
Flexible wire
A
AA
Fig.4
CN32
4pin wire
B
Main motor assembly
Motor pulley
Capstan belt
Fig.6
Main motor assembly
Fly wheel
1-26 (No.MB343)
Capstan belt
Motor pulley
Fig.7
Page 27
3.3.4 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 R Fly wheel L
Fig.8
Fly wheel R
Capstan shaft R Capstan shaft L
Slit washer
Fig.9
3.3.5 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) Release the tab a, b, c, d and e retaining the reel pulse board.
(3) Release the tab f and g attaching the solenoid on the reel pulse board.
(4) The reel pulse board and the solenoid come off.
Fly wheel L
bc
a
Solenoid
g
f
d
Reel pulse board
C
e
Fig.10
(No.MB343)1-27
Page 28
3.3.6 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 mechanism 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.
(2) Tighten the azimuth screw for reversing.
(3) Reattach the spring from the back of the Play/ Record &
Clear head.
(4) Connect the flexible wire to connector CN31
amplifier & mechanism control board.
on the head
U' Q'
Head mount assembly
Head mount assembly
O'
Fig.11
P'
P'
V'
V'
Direction cove
Spring
Flexible wire
V
O
P
Q
Head
Direction cove
U
Fig.12
Azimuth screw for reversing
Head mount
1-28 (No.MB343)
CN31
Fig.13
Head amplifier &
mechanism control board
Page 29
4.1 Adjustment and check items
(1) CD section
• Setup of the TEST MODE 1
• Indication of adjustment value
• Cancel of the TEST MODE
(2) CD eject lock mode
• Setup of eject lock
• Cancellation of eject lock
4.2 Adjustment and check method
1. CD section
(1)
Setup of the TEST MODE 1
While pressing both the [STOP ] key
and [CD ] key on the main unit,
insert the AC power cord in an outlet.
LCD indication
CD TEST
SECTION 4
ADJUSTMENT
(3) LCD all lighting - up mode
(4) Adjustment of LED back light
(5) Indication of software version
(6) Destination version indication of main microcomputer
[POWER] key
[CD PLAY] key
LCD
Press the [POWER] key on
the main unit.
LCD indication
CD TEST 1
Setup is complete.
(2) Indication of the
CD TEST 1
Press the [SET] key on
the remote controller.
LCD indication
:
Next status
Press the [POWER] key
on the main unit.
adjustment value
Status is change
:
Refer to the status table.
: Adjustment value
YES
NO
Status table
Cancel of the TEST MODE
(3)
Cancel of the TEST MODE
To cancel the test mode, press the [POWER] key on the main unit.
[CD EJECT] key
[STOP] key
Code
FG Mantissa part of the focus gain
FEXP
FBAL
FOFS Adjusting value of the focus offset
FES
TG Mantissa part of the tracking gain
TEXP Characteristic part of the tracking gain
TBAL Tracking balance adjusting value
TOFS Tracking offset adjusting value
TES
FAGC
ABC2 Tracking balance
ABC1 Focus balance
AGC2 Tracking coarse gain
AGC1 Focus coarse gain
AOC1 Focus offset
Characteristic part of the focus gain
Adjusting value of the focus balance
Disturbance amplitude during the focus gain
adjustment
Disturbance amplitude during the tracking gain
adjustment
Focus precise gain
Status
(No.MB343)1-29
Page 30
2. CD eject lock mode
The eject lock mode contorols CD tray movement.
(1)
Setup of eject lock
(2) Cancellation
of eject lock
Press the [POWER] key on the
main unit and put a standby mode.
Press the [CD EJECT ] key while
pressing the [STOP ] key on the
main unit.
LCD indication
LOCKED
eject locked
3. LCD all lighting-up mode
Press the [POWER] key on the
main unit and put a normal mode.
Press the [1] key twice while pressing
the [STOP ] key and [POWER] key
on the remote controller.
LCD indication
All of the LCD light up.
Press the [POWER] key on the
main unit and put a standby mode.
Press the [CD EJECT ] key while
pressing the [STOP ] key on the
main unit .
LCD indication
UNLOCKED
eject unlocked
4. Adjustment of LED back light
Press the [POWER] key on the
main unit and put a normal mode.
Press the [7] key twice while pressing
the [STOP ] key and [POWER] key
on the remote controller.
LCD indication
Let anything alone without
operating it.
Indication is finished.
5. Indication of software version
Press the [POWER] key on the
main unit and put a normal mode.
Press the [10] key while pressing the
[STOP ] key and [POWER] key on
the remote controller.
LCD indication
Next status
NO
Let anything alone without
operating it.
YES
Status indication
is change
Let anything alone without
operating it.
Indication is finished.
6. Destination version indication of
main microcomputer
Press the [POWER] key on the
main unit and put a normal mode.
Press the [8] key while pressing the
[STOP ] key and [POWER] key on
the remote controller.
LCD indication
Let anything alone without
operating it.
Indication is finished.
1-30 (No.MB343)
Indication is finished.
Page 31
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
(No.MB343)1-31
Page 32
Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MB343)
Printed in Japan
VPT
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