JVC MX-JD5(CA-MXJD5).pdf part of JVC MX-JD5(CA-MXJD5) JVC MX-JD5(CA-MXJD5).part1.rar, S.M. text manual preview

Text preview for : JVC MX-JD5(CA-MXJD5).pdf part of JVC MX-JD5(CA-MXJD5) S.M.

Back to : JVC MX-JD5(CA-MXJD5).par | Home

SERVICE MANUAL
COMPACT COMPONENT SYSTEM
6
2004
MB263

MX-JD5
Area suffix

US ------------------------ Singapore
UW ----------- Brazil,Mexico,Peru
UX -------------------- Saudi Arabia
UE -----------------------------Turkey
UN ----------------------------- Asean

CA-MXJD5

TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40

COPYRIGHT © 2004 Victor Company of Japan, Limited No.MB263
2004/6
SPECIFICATION
Amplifier Output Power FRONT MAIN SPEAKERS 40 W per channel, min. RMS, driven into 6 at 1 kHz with
section no more than 10% total harmonic distortion.
FRONT SUBWOOFERS 80 W per channel, min. RMS, driven into 6 at 63 Hz with
no more than 10% total harmonic distortion.
CENTER SPEAKER 40 W, min. RMS, driven into 8 at 1 kHz with no more
than 10% total harmonic distortion.
SURROUND SPEAKERS 25 W per channel, min. RMS, driven into 16 at 1 kHz
with no more than 10% total harmonic distortion.
Digital output OPTICAL DIGITAL OUTPUT -21 dBm to -15 dBm (660 nm ±30 nm)
Audio input sensitivity/ AUX IN 300 mV/47 k
Impedance MIC 1/2 3.0 mV/50 k
(Measured at 1 kHz, with
tape recording signal 300
mV)
VIDEO OUT Color system NTSC/PAL selectable
VIDEO (composite) 1 V(p-p)/75
S-VIDEO Y (luminance):1 V(p-p)/75
C (chrominance, burst):0.286 V(p-p)/75
COMPONENT (Interlace/ (Y):1 V(p-p)/75
Progressive) (PB/PR):0.7 V(p-p)/75
Speaker Terminals Front main speakers 6 - 16
Center speakers 8 - 16
Surround speakers 16 - 32
6 - 16 (Front subwoofers) 6 - 16
Others AV COMPU LINK × 2 (Ø 3.5)
Tuner section FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 531 kHz - 1 710 kHz (at 9 kHz)
530 kHz - 1 710 kHz (at 10 kHz)
Disc player Playable disc DVD Video/DVD Audio/CD/VCD/SVCD
section CD-R/CD-RW (recorded in Audio CD/ Video CD/ Super
Video CD/ MP3/ WMA/ JPEG/MPEG-4 format)
DVD-R/DVD-RW (recorded in video format)
Dynamic range 90 dB
Horizontal resolution 500 lines
Wow and flutter Immeasurable
Cassette deck Frequency response Normal (type I) 50 Hz - 14 000 Hz
section Wow and flutter 0.15% (WRMS)
General Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V ,
(adjustable with the voltage selector), 50 Hz / 60 Hz
Power consumption 220 W (at operation) 20 W (on standby)
Dimensions (approx.) 265 mm × 335 mm × 352 mm (W/H/D)
Mass (approx.) 8.7 kg
Design and specifications are subject to change without notice.

1-2 (No.MB263)
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and voltmeter.
many circuits and components specially for safety purpos- Move the resistor connection to each exposed metal
es. For continued protection, no changes should be made part, particularly any exposed metal part having a return
to the original design unless authorized in writing by the path to the chassis, and measure the AC voltage across
manufacturer. Replacement parts must be identical to the resistor. Now, reverse the plug in the AC outlet and
those used in the original circuits. Services should be per- repeat each measurement. Voltage measured any must
formed by qualified personnel only. not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5
mA AC (r.m.s.).
(2) Alterations of the design or circuitry of the product should AC VOLTMETER
not be made. Any design alterations of the product should (Having 1000
not be made. Any design alterations or additions will void ohms/volts,
the manufacturers warranty and will further relieve the or more sensitivity)
manufacture of responsibility for personal injury or property
damage resulting therefrom. 0.15 F AC TYPE
Place this
(3) Many electrical and mechanical parts in the products have probe on
special safety-related characteristics. These characteris- each exposed
tics are often not evident from visual inspection nor can the 1500 10W metal part.
protection afforded by them necessarily be obtained by us-
Good earth ground
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Ser-
1.2 Warning
vice Manual. Electrical components having such features
are identified by shading on the schematics and by ( ) on (1) This equipment has been designed and manufactured to
the Parts List in the Service Manual. The use of a substitute meet international safety standards.
replacement which does not have the same safety charac- (2) It is the legal responsibility of the repairer to ensure that
teristics as the recommended replacement parts shown in these safety standards are maintained.
the Parts List of Service Manual may create shock, fire, or (3) Repairs must be made in accordance with the relevant
other hazards. safety standards.
(4) It is essential that safety critical components are replaced
(4) The leads in the products are routed and dressed with ties, by approved parts.
clamps, tubings, barriers and the like to be separated from (5) If mains voltage selector is provided, check setting for local
live parts, high temperature parts, moving parts and/or voltage.
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 1.3 Caution
that they have been returned to normal, after reassem- Burrs formed during molding may be left over on some parts
bling. of the chassis.
Therefore, pay attention to such burrs in the case of pre-
(5) Leakage shock hazard testing forming repair of this system.
After reassembling the product, always perform an isola-
tion check on the exposed metal parts of the product (an-
tenna terminals, knobs, metal cabinet, screw heads, 1.4 Critical parts for safety
headphone jack, control shafts, etc.) to be sure the product
In regard with component parts appearing on the silk-screen
is safe to operate without danger of electrical shock.Do not
printed side (parts side) of the PWB diagrams, the parts that are
use a line isolation transformer during this check.
printed over with black such as the resistor ( ), diode ( )
· Plug the AC line cord directly into the AC outlet. Using a
and ICP ( ) or identified by the " " mark nearby are critical
"Leakage Current Tester", measure the leakage current
for safety. When replacing them, be sure to use the parts of the
from each exposed metal parts of the cabinet, particular-
same type and rating as specified by the manufacturer.
ly any exposed metal part having a return path to the
(This regulation dose not Except the J and C version)
chassis, to a known good earth ground. Any leakage cur-
rent 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 per volt or more sensitivity
in the following manner. Connect a 1,500 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

(No.MB263)1-3
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 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.

Short land section Connector
Pickup

Card wire
Traverse mechanism assembly

1-4 (No.MB263)
1.8 Important for laser products

1.CLASS 1 LASER PRODUCT 5.CAUTION : If safety switches malfunction, the laser is able
2.DANGER : Invisible laser radiation when open and inter to function.
lock failed or defeated. Avoid direct exposure to beam. 6.CAUTION : Use of controls, adjustments or performance of
3.CAUTION : There are no serviceable parts inside the procedures other than those specified here in may result in
Laser Unit. Do not disassemble the Laser Unit. Replace hazardous radiation exposure.
the complete Laser Unit if it malfunctions.
4.CAUTION : The CD,MD and DVD player uses invisible Please use enough caution not to
!
laser radiation and is equipped with safety switches which see the beam directly or touch it
prevent emission of radiation when the drawer is open and in case of an adjustment or operation
the safety interlocks have failed or are defeated. It is check.
dangerous to defeat the safety switches.

REPRODUCTION AND POSITION OF LABELS

WARNING LABEL

CAUTION : Visible and Invisible ADVARSEL : Synlig og usynlig VARNING : Synlig och VARO : Avattaessa ja suojalukitus
laser radiation when open and laserstråling når maskinen er osynling laserstrålning när ohitettuna tai viallisena olet alttiina
interlock failed or defeated. åben eller interlocken fejeler. den öppnas och spärren är näkyvälle ja näkymättömälle
AVOID DIRECT EXPOSURE TO Undgå direkte eksponering til urkopplad. Betrakta ej lasersäteilylle. Vältä säteen
BEAM. (e) stråling. (d) strålen. (s) kohdistumista suoraan itseesi. (f)

CAUTION : Visible and Invisible VARO : Avattaessa ja suojalukitus
laser radiation when open and ohitettuna tai viallisena olet alttiina
interlock failed or defeated. näkyvälle ja näkymättömälle
AVOID DIRECT EXPOSURE TO lasersäteilylle. Vältä säteen
CLASS 1 BEAM. (e) kohdistumista suoraan itseesi. (f)

LASER PRODUCT VARNING : Synlig och
osynling laserstrålning när
ADVARSEL : Synlig og usynlig
laserstråling når maskinen er
den öppnas och spärren är åben eller interlocken fejeler.
urkopplad. Betrakta ej Undgå direkte eksponering til
strålen. (s) stråling. (d)

(No.MB263)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-6 (No.MB263)
SECTION 3
DISASSEMBLY
3.1 Main body section
3.1.1 Removing the metal cover
(See Figs.1 to 3)
(1) From the both sides of the main body, remove the two
screws A attaching the metal cover. (See Figs.1 and 2.) Metal cover B
(2) From the back side of the main body, remove the six
screws B attaching the metal cover. (See Fig.3.)
(3) Remove the metal cover from the main body while lifting
the rear section of the metal cover in the direction of the ar-
row. (See Figs.1 and 2.)

Metal cover

B B

Fig.3

A
Fig.1

Metal cover

A
Fig.2

(No.MB263)1-7
3.1.2 Removing the front panel assembly
(See Figs.4 to 7)
· Prior to performing the following procedures, remove the metal
Plastic rivet
cover.
(1) From the right side of the main body, remove the screw C CN860 CN880 Main board
attaching the earth wires on the reverse side of the main
board. (See Fig.4.)
Reference:
After attaching the earth wires, fix them with a spacer as
before. (See Fig.4.)
(2) Remove the plastic rivet attaching the main board. (See
Fig.4.)
(3) From the inside of the main body, disconnect the card wires
from the connectors (CN303, CN860, CN880) on the for-
ward side of the main board. (See Fig.4.)
(4) Remove the wire clamp fixing the wires and disconnect the
wires from the connectors (CN301, CN302) on the forward
side of the main board. (See Fig.5.)
Reference:
After connecting the wires to the connectors, fix the wires
with the wire clamp as before. (See Fig.5.)
(5) Disconnect the wire from the connector CN454 on the for-
ward side of the main board. (See Fig.5.) [UW/UE version
only]
(6) From the left side of the main body, disconnect the parallel CN303 Spacer C
wire from the connector CN101 on the transformer board.
Earth wires
(See Fig.5.)
(7) Disconnect the wire from the connector CN119 on the Fig.4
transformer board. (See Fig.5.) Speaker terminal board Holder board
Reference:
CN454 Parallel wire
After connecting the wire, pass the wire through the slot
a of the holder board as before. (See Fig.5.) CN106
(8) Remove the tie band fixing the wire and disconnect the Wire
wire from the connector CN106 on the speaker terminal
board. (See Fig.5.)
Reference:
· After connecting the wire, fix the wire with a new tie
band as before. (See Fig.5.) a
· After connecting the wire, pass the wire through the
slot a of the holder board as before. (See Fig.5.) Wire
(9) From the top side of the main body, remove the two screws
Parallel
D attach the front panel assembly to the main body. (See wire
Fig.6.)
CN101
(10) From the bottom side of the main body, remove the three
screws E and two screws F attaching the front panel as-
sembly. (See Fig.7.)
(11) Release the claws b, remove the front panel assembly
from the main body in the direction of the arrow. (See
Fig.7.)

CN119 CN301
Tie band
wires
Transformer board
CN302
Main board
Wire clamp
Fig.5

1-8 (No.MB263)
Front panel assembly

D

D
Fig.6
Front panel assembly b

E

F

b E
Fig.7

(No.MB263)1-9
3.1.3 Removing the tuner
(See Figs.8 and 9.)
· Prior to performing the following procedures, remove the metal
Tuner
cover.
(1) From the top side of the main body, disconnect the card CN410 CN21 Main board
wire from the connector CN21 on the main board. (See
Fig.8.)
(2) From the back side of the main body, remove the two
screws G attaching the tuner to the rear panel. (See Fig.9.)

3.1.4 Removing the video board
(See Figs.8 and 9.)
· Prior to performing the following procedures, remove the metal
cover.
(1) From the top side of the main body, disconnect the card
wire from the connector CN410 on the main board. (See
Fig.8.)
(2) From the back side of the main body, remove the three
screws H attaching the video board to the rear panel. (See
Fig.9.)

Card wires Video board
Fig.8

H

G

Rear panel
Fig.9

1-10 (No.MB263)
3.1.5 Removing the rear panel
(See Figs.8 to 11)
· Prior to performing the following procedures, remove the metal
cover. J
(1) From the back side of the main body, remove the screw J
attaching the rear cover. (See Fig.10.)
(2) Release the sections c and remove the rear cover from the
rear panel. (See Fig.10.)
(3) Remove the two screws K and eighteen screws L attaching
the rear panel. (See Fig.11.)
(4) Remove the screw L' attaching the rear panel.(See
Fig.11.) [US/UX/UN version only]
Reference:
Remove the tuner and video board as required. (See
Figs.8 and 9.)
(5) From the both sides of the main body, release the sections
d of the center chassis in the direction of the arrow and re-
lease the joints e attaching the rear panel to the bottom
chassis. (See Fig. 11.)

c

Rear cover Rear panel
Fig.10

Rear panel
L
d

L'

L

K
L

e L Bottom chassis
e
Fig.11

(No.MB263)1-11
3.1.6 Removing the DVD mechanism assembly
(See Figs.12 and 13)
· Prior to performing the following procedures, remove the metal
cover, tuner and video board. DVD mechanism assembly M Center chassis
(1) From the top side of the main body, remove the three
screws M attaching the DVD mechanism assembly on the
center chassis. (See Fig.12.)
Spacer
(2) From the forward side of the main board, disconnect the
card wires from the connectors (CN11, CN522, CN523,
CN524, CN531). (See Fig.12.) Card
wires
Reference:
When reassembling, pass the card wire through the sec-
tion f of the main board before connecting the card wire
to the connector CN11. (See Fig.12.)
(3) Remove the spacer fixing the card wires. (See Fig.12.) M
Reference:
After connecting the card wires, fix them with the spacer
as before. (See Fig.12.)
(4) From the inside of the main body, take out the DVD mech- CN531
Main board Card wires CN11 CN522
anism assembly.
(5) Remove the tray fitting from the DVD mechanism assembly CN524 CN523
in the direction of the arrow. (See Fig.13.) f

Card wire
Fig.12
DVD mechanism assembly

Tray fitting
Fig.13

1-12 (No.MB263)
3.1.7 Removing the main board
(See Figs.14 and 15)
· Prior to performing the following procedures, remove the metal
Main board
cover, tuner, video board and rear panel.
(1) From the right side of the main body, remove the screw N CN880 CN11 CN522
CN531
attaching the earth wires on the reverse side of the main
board. (See Fig.14.) f
CN454
Reference:
After attaching the earth wires, fix them with a spacer as CN524
before. (See Fig.14.)
CN860 CN523
(2) Remove the plastic rivet attaching the main board. (See
Fig.14.)
(3) From the inside of the main body, disconnect the card wires Plastic
from the connectors (CN11, CN303, CN522, CN523, rivet
CN216
CN524, CN860, CN880) on the forward side of the main
board. (See Figs.14 and 15.) CN303
Reference:
When reassembly, pass the card wire through the sec-
tion f of the main board before connecting the card wire
to the connector CN11. (See Figs.14 and 15.)
CN211
(4) Disconnect the wire from the connector CN454 on the for-
ward side of the main board. (See Figs.14 and 15.) [UW/
UE version only] CN206 CN216
(5) Remove the wire clamp fixing the wires and disconnect the Spacer N
wires from the connector (CN301, CN302) on the forward Earth wires
side of the main board. (See Fig.15.)
Main board 3 h g Main
Reference: 1
board
After connecting the wires to the connectors, fix the wires 2
with the wire clamp as before. (See Fig.15.) Speaker terminal
board
(6) Disconnect the parallel wire from the connectors (CN217,
CN218, CN219) on the main board. (See Fig.15.) CN201 Primary board
(7) Release the lock g of the connector CN216 on the main Fig.14
board in the direction of the arrow 1 and disconnect the CN522 Card wire
CN524
main board from the connector CN206 on the speaker ter-
minal board toward this side. (See Fig.14.) Wire
f
CN523 CN880
Note: CN11
When releasing the lock g of the connector CN216, take CN531 CN860
care not to break the lock. (See Fig.14.)
(8) Release the lock h of the connector CN201 on the primary
CN454
board in the direction of the arrow 2 and disconnect the
connector CN211 on the main board from the connector Card
CN201 in the direction of the arrow 3. (See Fig.14.) wires

Note:
When releasing the lock h of the connector CN201, take care
not to break the lock. (See Fig.14.)
CN303

CN217
CN301
CN219
CN218

CN302
Wires
Main board
Parallel wires Main board Wire clamp
Fig.15

(No.MB263)1-13
3.1.8 Removing the center chassis assembly
(See Fig.16)
· Prior to performing the following procedures, remove the metal
Main board
cover, tuner, video board and rear panel.
(1) From the top side of the main body, disconnect the card CN523 CN524 f
wires from the connectors (CN11, CN522, CN523, CN524) CN522 CN11 Card wires
on the main board.
CN531
Reference:
When reassembling, pass the card wire through the sec-
tion f of the main board before connecting the card wire
to the connector CN11.
(2) Disconnect the wire from the connector CN105 on the
speaker terminal board.
(3) Remove the two screws P attaching the center chassis as-
sembly.
Card
(4) Take out the center chassis assembly from the main body. wires
P

CN105 Wire
Speaker terminal board Center chassis assembly
Fig.16
3.1.9 Removing the fan
(See Fig.17)
· Prior to performing the following procedure, remove the metal
Fan Center chassis assembly
cover, tuner, video board, rear panel and center chassis as-
sembly.
From the bottom side of the center chassis assembly, remove
the two screws Q attaching the fan.

Q
Fig.17

1-14 (No.MB263)
3.1.10 Removing the transformer board
(See Fig.18)
· Prior to performing the following procedure, remove the metal
cover, tuner, video board, rear panel and center chassis as- R
sembly.
(1) From the top side of the main body, disconnect the wire
and power cord from the connectors (CN119, CN250) on
the transformer board.
(2) Disconnect the parallel wire from the connector CN101 on
the transformer board.
(3) Remove the four screws R attaching the transformer board
and take out the transformer board from the main body.

Power
cord R

CN250 R CN101
CN119 Parallel Wire
Transformer board
Fig.18
3.1.11 Removing the speaker terminal board
(See Fig.19.)
· Prior to performing the following procedure, remove the metal
Speaker terminal board
cover, tuner, video board, rear panel, main board and center
chassis assembly.
(1) From the top side of the main body, remove the tie band fix-
ing the parallel wire. CN214
CN205
Reference: i
After connecting the parallel wire, fix it with the new tie j
Primary board
band.
(2) Disconnect the parallel wire from the connector CN106 on
the speaker terminal board.
(3) Release the locks (i, j) of the connectors (CN205, CN214)
and disconnect the speaker terminal board in an upward di-
rection.

CN106 Tie band Parallel wire
Speaker terminal board
Fig.19

(No.MB263)1-15
3.1.12 Removing the regulator & surround amplifier board and main & subwoofer amplifier board
(See Figs.20 and 21)
· Prior to performing the following procedure, remove the metal
Main & subwoofer
cover, tuner, video board, rear panel, main board, center chas- amplifier board k
sis assembly and speaker terminal board.
(1) From the top side of the main body, disconnect the regula- CN202
tor & surround amplifier and main & subwoofer amplifier
boards in an upward direction while releasing the locks (k, Primary board
m) of the connectors (CN202, CN203) on the primary
board. (See Fig.20.)
(2) Take out the regulator & surround amplifier and main &
subwoofer amplifier boards at the same time from the main
body.
(3) Remove the two screws S attaching the leaf spring to the
heat sink.
(4) Remove the two screws T attaching the regulator & sur-
round amplifier board and remove the regulator & surround
amplifier board from the heat sink. (See Fig.21.)
(5) Remove the four screws U attaching the main & subwoofer
amplifier board to the heat sink. (See Fig.21.)

m
Regulator & surround
amplifier board
CN203
Primary board
Fig.20

Regulator & surround Main & subwoofer
amplifier board amplifier board

T

S U

Leaf spring Heat sink
Fig.21

1-16 (No.MB263)
3.1.13 Removing the primary board
(See Fig.22)
· Prior to performing the following procedure, remove the metal
Primary board Bottom chassis
cover, tuner, video board, rear panel, main board, center chas-
sis assembly, speaker terminal board and regulator & sur-
round amplifier board and main & subwoofer amplifier board.
(1) From the top side of the main body, disconnect the wire
from the connector CN119 on the transformer board.
Reference:
Pass the wire through the slot n of the holder board be- p
fore connecting the wire to the connector CN119. V
(2) Remove the screw V attaching the primary board on the
bottom chassis.
(3) Remove the section p of the primary board and take out the Holder
primary board from the main body. board

n

Transformer board CN119 Wire
Fig.22

(No.MB263)1-17
3.1.14 Removing the FL board
(See Figs.23 and 24)
· Prior to performing the following procedures, remove the metal
Front panel assembly
cover and front panel assembly.
(1) From the front side of the front panel assembly, pull the vol- Volume knob
ume knob out of the front panel assembly. (See Fig.23.)
(2) From the inside of the front panel assembly, remove the six
screws W attaching the FL board. (See Fig.24.)
(3) Release the claws q in the direction of the arrow and take
out the FL board from the front panel assembly. (See
Fig.24.)

Microphone knob

Fig.23

W FL board
W

q

W W

X' X
Earth
wire
X

Front panel assembly Stay bracket
Fig.24

1-18 (No.MB263)
3.1.15 Removing the switch board
Switch board Front panel assembly
(See Figs.23 to 25)
· Prior to performing the following procedures, remove the metal
cover and front panel assembly.
(1) From the front side of the front panel assembly, pull the mi-
crophone knob out of the front panel assembly. (See
Fig.23.) [US/UX/UN version only]
(2) From the inside of the front panel assembly, remove the
three screws X and screw X' attaching the stay bracket.
(See Fig.24.) Y Y
Reference:
When attaching the screw X', attach the earth wire with
it.
(3) Remove the ten screws Y and screw Y' attaching the
switch board. (See Fig.25.)
Y'
Z
Reference: Wire
When attaching the screw Y', attach the wire holder with holder
it.
(4) Take out the switch board from the front panel assembly.
Earth
3.1.16 Removing the cassette mechanism assembly wire
(See Fig.25)
Cassette mechanism
· Prior to performing the following procedures, remove the metal Z' assembly Z
cover and front panel assembly. Swing cam (R) Swing cam (L)
(1) From the inside of the front panel assembly, remove the assembly assembly
five screws Z, screw Z' attaching the cassette mechanism Fig.25
assembly.
(2) Take out the cassette mechanism assembly from the front
panel assembly.
Reference:
· When attaching the screw Y', attach the earth wire with it.
· When attaching the screws Z, attach the swing cam (L)/(R)
with them.

(No.MB263)1-19
3.2 DVD mechanism section
· Remove the DVD mechanism assembly from the main body.
(See "3.1.6 Removing the DVD mechanism assembly".)
3.2.1 Removing the tray assembly
(See Figs.1 to 3)
(1) From the right side of the DVD mechanism assembly, push
Tray assembly DVD mechanism assembly
the slide cam and pull the tray assembly out of the DVD
mechanism assembly in the direction of the arrow. (See
Fig.1.)
(2) From the top side of the DVD mechanism assembly, re-
move the two screws A attaching the leaf spring to the
bushing and remove the leaf spring. (See Fig.2.)
(3) Remove the bushing of the tray assembly from the projec-
tion a on the DVD mechanism assembly and move the tray Slide cam
assembly in the direction of the arrow. (See Fig.3.) Fig.1
(4) Remove the claw b of the tray assembly from the DVD
mechanism assembly and take out the tray assembly. (See Leaf spring Bushing
Fig.3.) A

DVD mechanism assembly
Fig.2
Projection a
Bushing

Claw b

DVD mechanism assembly
Tray assembly
Fig.3

1-20 (No.MB263)
3.2.2 Removing the traverse mechanism assembly
(See Figs.4)
(1) From the bottom side of the DVD mechanism assembly, re-
DVD mechanism assembly
move the four screws B attaching the traverse mechanism
assembly and take out the DVD traverse mechanism as- DVD servo board
sembly with the DVD servo board.

B B

Traverse mechanism assembly
Fig.4
3.2.3 Removing the DVD servo board
(See Figs.5 and 6)
· Remove the traverse mechanism assembly.
Short land section c Pickup
(1) From the side of the traverse mechanism assembly, solder
the short land sections c on the pickup. (See Fig.5.)
(2) From the bottom side of the traverse mechanism assem-
bly, release the lock of the connector CN101 on the DVD
servo board in the direction of the arrow 1 and disconnect
the card wire. (See Fig.6.)
Caution:
· Solder the short land sections c on the pickup before
disconnecting the card wire from the connector CN101 Traverse mechanism assembly
on the DVD servo board. If the card wire is disconnect- Fig.5
ed without attaching solder, the pickup may be de-
CN101
stroyed by static electricity. (See Figs.5 and 6.)
· When attaching the DVD servo board, be sure to re- Card wire CN201
Card wire
move solders from the short land sections c after con-
necting the card wire to the connector CN101 on the
DVD servo board. (See Figs.5 and 6.) d
(3) Disconnect the card wire from the connector CN201 on the
DVD servo board. (See Fig.6.)
(4) Remove the two screws C attaching the DVD servo board.
C 1 C
1
(See Fig.6.)
(5) Remove the DVD servo board from the engagement sec-
tion d in an upward and remove the engagement section f f
in the direction 3 while removing the engagement section e 3
2
in the direction of the arrow 2. (See Fig.6.)

e

DVD servo board
Traverse mechanism assembly
Fig.6

(No.MB263)1-21
3.2.4 Removing the pickup
(See Figs.5,7 to 9)
· Remove the traverse mechanism assembly.
Plate g Thrust spring
(1) From the side of the traverse mechanism assembly, solder
the short land sections c on the pickup. (See Fig.5.)
(2) Release the lock of the connector on the pickup in the di-
rection of the arrow and disconnect the card wire. (See
Fig.7.)
Caution: D
· Solder the short land sections c on the pickup before
disconnecting the card wire from the connector on the
pickup. If the card wire is disconnected without attach-
ing solder, the pickup may be destroyed by static elec-
tricity. (See Figs.5 and 7.)
· When attaching the pickup, be sure to remove solders
from the short land sections c after connecting the
card wire to the connector on the pickup. (See Figs.5
and 7.)
(3) Remove the screw D attaching the plate and thrust spring. Card wire Connector
(See Fig.7.) Pickup
Feed holder
(4) Remove the engagement section g attaching the plate to
Fig.7
the feed holder and remove the plate with the thrust spring.
(See Fig.7.) Traverse mechanism assembly
h Shaft
(5) Remove the shaft of the pickup from the section h on the
traverse mechanism assembly and remove the shaft from
the section i while moving it in the direction of the arrow. i
(See Fig.8.)
(6) Remove the pickup from the section j of the traverse mech-
anism assembly and take out the pickup with the shaft.
(See fig.8.)
(7) From the bottom side of the pickup, remove the two screws
E attaching the SW actuator and LEAD spring. (See Fig.9.)
(8) Pull the shaft out of the pickup. (See Fig.9.)

Pickup j
Fig.8
Pickup

SW actuator

Shaft
LEAD spring
E
Fig.9

1-22 (No.MB263)
3.2.5 Attaching the pickup
(See Figs.5,7 to 10)
· See "3.3.4 Removing the pickup".
Feed gear M
(1) Attach the shaft, SW actuator and LEAD spring to the pick-
up. (See Fig.9.)
(2) Align the pickup to the section j of the traverse mechanism 1
assembly first, and set the both ends of the shaft of the
pickup in the sections g and i of the traverse mechanism
assembly. (See Fig.8.)
(3) Attach the plate and thrust spring. (See Fig.7.)
(4) Remove solders from the short land sections c after con-
necting the card wire to the connector on the pickup. (See
Figs.5 and 7.)
2
(5) Turn the feed gear M in the direction of the arrow 1 to move
the pickup in the direction of the arrow 2. (See Fig.10.)

Pickup
Fig.10
3.2.6 Removing the feed motor
(See Figs.7,11 and 12)
· Remove the traverse mechanism assembly.
Feed gear M Lead screw
(1) From the top side of the traverse mechanism assembly, re-
move the screw D attaching the plate and thrust spring. Feed motor
Feed gear E Wires
(See Fig.7.) m
(2) Remove the engagement section g attaching the plate to
the feed holder and remove the plate with the thrust spring.
(See Fig.7.) F k
(3) Remove the wires from the soldered section k on the spin-
dle motor board. (See Fig.11.)
Reference:
When attaching the feed motor, pass the wire through
the section m on the spindle base. (See Fig.11.)
(4) Remove the feed holder, feed motor, lead screw, feed gear
E and feed gear M at the same time after removing the two F
screws F attaching the feed holder. (See Fig.11.)
(5) From the side of the feed holder, remove the two screws G
attaching the feed motor. (See Fig.12.)
Spindle base
Feed holder
Spindle motor board
Fig.11
Feed holder

G
Fig.12

(No.MB263)1-23
3.2.7 Removing the spindle motor board
(See Figs.11 and 13)
· Remove the traverse mechanism assembly.
Traverse mechanism assembly
· Remove the DVD servo board.
(1) From the top side of the traverse mechanism assembly, re-
move the wires from the soldered section k on the spindle
motor boa