JVC XV-M5GSL User manual

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED No.XA008
2003/7
DVD VIDEO PLAYER
XA00820036XV-M5GSL
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
Area Suffix
J -------------------- U.S.A.
C ---------------- Canada
2
5
8
1
4
7
3
6
9
010 +10
TITLE/
GROUP
TV/VIDEO
CANCELRETURN
VOL VOL+
CH
+
CH
VFPZOOM
AMP
VOL
AUDI O
3D
PHONIC
SUB TITLE ANGLE
DIMMER
REPEAT
OPEN/
CLOSE
DISC
SELECT
TV1 TV2 TV3
TV4 TV5 TV6
TV7 TV8 TV9
TV-/-- TV0 MUTING
TV DVD
NEXTPREVIOUS
SELECTCLEAR
SLOW
- SLOW+
T
O
P
M
E
N
U
M
E
N
U
O
N
S
C
R
E
E
N
C
H
O
I
C
E
ENTER
STANDBY/ON
TV DVD
PROGRESSIVE
SCAN
VIDEO

1-2 (No.XA008)
SPECIFICATION
General
Other
Video outputs
Audio outputs
Audio characteristics
• Specifications and appearance are subject to change without prior notice.
• Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarkes of Dolby Laboratories.
• "DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems, Inc.
Digital output signal chart
Readable discs DVD VIDEO, DVD-R (Video format), DVDRW (Video format), +RW (Video format), SVCD, Video CD,
Audio CD (CD-DA), MP3/WMA format, JPEG, CD-R/RW (CD-DA, SVCD, Video CD, MP3/WMA format,
JPEG)
Video format NTSC, 480i (Interlaced scan)/480p (Progressive scan) selectable
Power requirements AC 120 V, 60 Hz
Power consumption 12 W (POWER ON) 0.8 W (STANDBY mode)
Mass 4.2 kg (9.3 lbs)
Dimensions (W x H x D) 435mm x 83mm x 322mm (17-3/16 inch x 3-5/16 inc x 12-11/16 inch)
COMPONENT (pin jacks) Y Output: 1.0 Vp-p (75 ohm)
Pb/Pr Output: 0.7Vp-p (75 ohm)
VIDEO OUT (pin jack) 1.0 Vp-p (75 ohm)
S-VIDEO OUT (S jack) Y Output: 1.0 Vp-p (75 ohm)
C Output: 286 mVp-p (75 ohm)
Horizontal resolution 500 lines or more
ANALOG OUT (pin jack) 2.0 Vrms (10 kohm)
DIGITAL OUT (COAXIAL) 0.5 Vp-p (75 ohm termination)
DIGITAL OUT (OPTICAL) -21 dBm to -15 dBm (peak)
Frequency response CD (sampling frequency 44.1 kHz):2 Hz to 20 kHz
DVD (sampling frequency 48 kHz):2 Hz to 22 kHz
(4 Hz to 20 kHz for DTS and Dolby Digital bitstream signals)
DVD (sampling frequency 96 kHz):2 Hz to 44 kHz
Dynamic range 16 bit: More than 98 dB
20 bit: More than 100 dB
24 bit: More than 100 dB
Wow and flutter Unmeasurable (less than ±0.002%)
Total harmonic distortion less than 0.006%
Disc type Output
PCM ONLY DOLBY DIGITAL/PCM STREAM/PCM
DVD with 48/44.1 kHz,
16/20/24 bit linear PCM 48/44.1 kHz, 16 bit, stereo linear PCM
DVD with 96 kHz,
16/22/24 bit linear PCM 48kHz, 16 bit, stereo linear PCM (Down sampling)
DVD with DTS 48kHz, 16bit, stereo linear PCM DTS bitstream
DVD with Dolby Digital 48 kHz, 16 bit, stereo linear PCM Dolby Digital bitstream
DVD with MPEG
Multichannel 48kHz, 16 bit, stereo linear PCM MPEG bitstream
SVCD/Video CD/Audio CD 44.1 kHz, 16 bit, stereo linear PCM
Audio CD with DTS 48kHz, 16bit, stereo linear PCM DTS bitstream
CD-R/RW with MP3/WMA Linear PCM

(No.XA008)1-3
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purpos-
es. 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 per-
formed 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 characteris-
tics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by us-
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-
vice 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 charac-
teristics 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 reassem-
bling.
(5) Leakage shock hazard testing)
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,
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, particular-
ly any exposed metal part having a return path to the
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 ohms per volt or more sensi-
tivity in the following manner. Connect a 1,500 ohm 10W
resistor paralleled by a 0.15 F AC-type capacitor be-
tween an exposed metal part and a known good earth
ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a return
path to the chassis, and measure the AC voltage across
the resistor. Now, reverse 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 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 pre-
forming 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. (Except
the JC version)

1-4 (No.XA008)
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 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 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.
(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.

(No.XA008)1-5
1.7 Importance admistering point on the safety
JT901 JT902
JT903 JT904
B922
EP952
C902
C904 C905
C907 C908 C913
C914
C918
C950
C951
C952
C953
C955
C957
C958
C959
C963
C964
C965
C966
C967
C970 C973
C988
CP951
C916
D901
D902
D903
D951
D952
D953
D954
D955
D956
D957
D960
EP951
FC901
FC902
B910
B920
IC901
IC952
B911
B912
L901
L951
L952
L953
L954
L955
P901
PC901
B913
B914
B902
B907
Q951
Q953
B909
B906
B908
B921
B918
B919
WC901
B915
B916
B917
B923
B926
B927
B925
B924
R901
R903
R906
R910
R912
R913
R915
R951
R954
T901
EP910
D904
B903
B904
B905
Full Fuse Replacement Marking
Graphic symbol mark
(This symbol means fast blow type fuse.)
should be read as follows ;
FUSE CAUTION
FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE
AND RATING OF FUSES ;
F901 : 1.6 A / 125 V F901 : 1.6 A / 125 V
Marquage Pour Le Remplacement
Complet De Fusible
PRECAUTIONS SUR LES FUSIBLES
POUR UNE PROTECTION CONTINUE CONTRE
DES RISQUES D'INCENDIE, REMPLACER
SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;
Le symbole graphique (Ce symbole signifie
fusible de type a fusion rapide.)
doit etre interprete comme suit ;

1-6 (No.XA008)
1.8 Precautions for Service
1.8.1 Handling of Traverse Unit and Laser Pickup
(1) Do not touch any peripheral element of the pickup or the actuator.
(2) The traverse unit and the pickup are precision devices and therefore must not be subjected to strong shock.
(3) Do not use a tester to examine the laser diode. (The diode can easily be destroyed by the internal power supply of the tester.)
(4) To replace the traverse unit, pull out the metal short pin for protection from charging.
(5) When replacing the pickup, after mounting a new pickup, remove the solder on the short land which is provided at the center of
the flexible wire to open the circuit.
(6) Half-fixed resistors for laser power adjustment are adjusted in pairs at shipment to match the characteristics of the optical block.
Do not change the setting of these half-fixed resistors for laser power adjustment.
1.8.2 Destruction of Traverse Unit and Laser Pickup by Static Electricity
Laser diodes are easily destroyed by static electricity charged on clothingor the human body. Before repairing peripheral elements of
the traverse unit or pickup, be sure to take the following electrostatic protection:
(1) Wear an antistatic wrist wrap.
(2) With a conductive sheet or a steel plate on the workbench on which the traverse unit or the pick up is to be repaired, ground the
sheet or the plate.
(3) After removing the flexible wire from the connector (CN101), short-circuit the flexible wire by the metal clip.
(4) Short-circuit the laser diode by soldering the land which is provided at the center of the flexible wire for the pickup.
After completing the repair, remove the solder to open the circuit.
CN101 Servo control boar
d
Short circuit
S
hort circuit
*Please refer to the disassembly method for detailes.

(No.XA008)1-7
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-8 (No.XA008)
SECTION 3
DISASSEMBLY
3.1 Main body section
3.1.1 Removing the top cover (See Figure 1)
(1) Remove the four screws Aattaching the top cover on both
sides of the main body.
(2) Remove the two screws Battaching the top cover on the
back of the main body.
(3) Raise the both sides and lower part of the rear of the top
cover, with opening them slightly in an outward direction.
And the top cover will be removed.
Fig.1
3.1.2 Removing the front panel assembly
(See Figure 2, Figure 3, Figure 4)
• Prior to performing the following procedure, remove the top
cover.
• There is no need to remove the mechanism assembly.
(1) Disconnect the flat wire from connector JT901, JT902 on
the power supply board.
(2) Disconnect the card wire from connector CN501, CN702
on the servo control board and signal output terminal board
respectively.
(3) Remove the three screws Cattaching the front panel as-
sembly on the bottom of the main body.
(4) Hook aand bare removed respectively, and the front panel
assembly is removed.
3.1.3 Removing the changer mechanism assembly
(See Figure 2, Figure 4)
• Prior to performing the following procedure, remove the top
cover.
• There is no need to remove the front panel assembly.
(1) Disconnect the card wire from connector CN501, CN502,
CN503 on the servo control board.
(2) Remove the four screws Dattaching the changer mecha-
nism assembly.
Fig.2
Fig.3
Fig.4
B
B
Ax 2
Ax 2
TOP COVER
TOP COVER
TOP COVER
Power supply board
JT901,JT902
D
Signal output terminal board
CN702
D
DD
Hook a
Hook a
Hook b
Hook b
Front panel
assembly
C
C
C
Mechanism assembly Servo control boardCN502
CN501 CN503

(No.XA008)1-9
3.1.4 Removing the servo control board (See Figure 5)
• Prior to performing the following procedure, remove the chang-
er mechanism assembly.
(1) Disconnect the card wire from connector CN101, CN103,
CN104, CN105, CN201 on the servo control board.
ATTENTION :
At this time, please extract the wire after short-circuited
of two places on the wire in part cwith solder. Please re-
move the solder two places of part cafter connecting the
wire CN101 when reassembling.
(2) Remove the two screws Eattaching the servo control
board.
Fig.5
3.1.5 Removing the power supply board (See Figure 6, Figure 7)
• Prior to performing the following procedure, remove the top
cover.
(1) Disconnect the flat wire from connector JT901, JT902,
JT903, JT904 on the power supply board.
(2) Disconnect the socket wire from connector P901 on the
power supply board.
(3) Remove the three screws Fattaching the power supply
board.
(4) Remove the one screw Gattaching the power supply board
on the back of the main body.
3.1.6 Removing the signal output terminal board
(See Figure 6, Figure 7)
• Prior to performing the following procedure, remove the top
cover.
(1) Disconnect the card wire from connector CN601, CN701,
CN702 on the signal output terminal board.
(2) Disconnect the flat wire from connector JT903, JT904 on
the power supply board.
(3) Remove the three screws Hattaching the signal output ter-
minal board.
(4) Remove the six screws Iattaching the signal output termi-
nal board on the back of the main body.
Fig.6
Fig.7
CN201
EE
CN101 CN105 CN104 CN103
Servo
control board
Servo
control board
Part c
F
JT903,JT904
JT901,JT902
H
CN601
CN701
H
Power supply board
Signal output terminal board
H
F
F
CN702
P901
G
II

1-10 (No.XA008)
3.2 Changer mechanism Section
3.2.1 Removing the tray assembly
(See Figs.1 to 5)
(1) Remove the two screws Afrom the top cover and release
the two joints aon both sides of the body.
(2) Remove the top cover with the two rods attached to the top
cover and lifter assembly respectively.
(3) Remove the open det lever on the left side of the body.
(4) Push part bof the slide (R) assembly on the right side of
the body to unlock the tray assembly. Draw out the trays to-
ward the front.
Attention:
The tray can be locked if all tray assemblies are at-
tached.
(5) From top of the body, move the stopper tab cin the direc-
tion of the arrow and release. Pull out the tray assemblies
from the body.
Caution:
Remove the tray assembly from top tray 5 in order.
Attention:
When reattaching the sub tray of the tray assembly, or when
removing the DISC remaining inside, refer to another section.
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Top cover
Lifter assembly
Rod
A
a
a
A
a
Rod Top cover
Lifter assembly
a
Open det leve
r
b
Tray assembly
(Tray 5)
c

(No.XA008)1-11
3.2.2 Removing the motor board
(See Fig.6)
(1) Unsolder the four soldered parts on the motor of the motor
board.
Caution:
If removing the motor board with the motor, you should
remove the screws attaching the motor from top of the
body(Refer to another section).
(2) Remove the two screws Battaching the motor board.
(3) Remove the spacer fixing the motor board and tray switch
board, and disconnect connector CN2 on the motor board.
(4) Disconnect the card wire from connector CN1 on the motor
board.
Caution:
When reconnecting the card wire, let the card wire through the
slot dof the motor board and attach it to the bottom of the body
using a double tape.
Fig.6
3.2.3 Removing the traverse mechanism assembly
(See Fig.7)
• Prior to performing the following procedure, remove the servo
control board.
(1) Turn over the body and remove the three screws Cattach-
ing the tramecha.
Fig.7
B
d
CN2
Spacer
Card wire
Double
face tape
Motor
Soldering point
CN1
B
C
Traverse mechanism assembly
C
C

1-12 (No.XA008)
3.2.4 Removing the pickup
(See Fig.8-1, 8-2)
• Prior to performing the following procedure, remove the servo
control board and traverse mechanism assembly.
(1) Remove one screw Dattaching the bracket. Then the
bracket is also removed.
(2) Slide epart of the worm shaft slightly in a direction of the
arrow, and pull out the worm shaft while lifting the worm
shaft in a direction of the arrow.
• The guide collar is also removed.
• Be sure to solder the short round point fon the pickup be-
fore removing the flexible wire from the pickup. In assem-
bling procedure, connect the flexible wire to the
connector, and then be sure to unsolder the short round
point.
• Insert the guide collar in the worm shaft before attaching
the pickup.
(3) Remove the two screws Eattaching the rack plate, and re-
move the rack plate.
(4) Pull out the worm shaft from the pickup.
Fig.8-1
Fig.8-2
Braket
Pick-up
Part e
D
Worm shaft
Guide collar
Pick-up
Connector
Flexible wire
Part f
E
Rack plate

(No.XA008)1-13
3.2.5 Removing the side (L)/ tray switch board
(See Figs.9 to 11)
• Prior to performing the following procedure, remove the tray
assembly.
(1) Remove the two screws Fattaching the side (L) on top of
the body.
(2) From the side of the body, remove the spacer fixing the tray
switch board and motor board. Disconnect connector CN3
on the tray switch board and detach the side (L) upward.
(3) Remove the screw Gattaching the tray switch board.
(4) Push the joint tab gof the side (L) in the direction of the ar-
row and remove the tray switch board outward, then re-
lease joint h.
Fig.9
Fig.10
Fig.11
F
F
Side (L)
CN3
Spacer
Side (L)
F
F
g
h
G
Side (L)
Tray switch board

1-14 (No.XA008)
3.2.6 Removing the side (R) assembly
(See Figs.12 to 17)
• Prior to performing the following procedure, remove the tray
assembly.
(1) Bend ipart of the bracket in a direction of the arrow by us-
ing pliers.
(2) Remove the one screw Hattaching the bracket.
(3) Push and release the two tabs jof the gear cover through
the two notches inside the side (R) assembly. Remove the
gear cover outward.
(4) Remove the spring attached to part kof the hook on the
right side of the body.
(5) From top of the body, turn the gear 1 clockwise to move the
elevator cam rearward.Move the two slots land joint mof
the elevator cam as shown in Fig.16 and remove the ele-
vator cam outward.
(6) Remove the three screws Iand detach the side (R) upward.
Caution:
When reattaching the side (R) assembly, make sure to fit the
shaft(part n) into the slot of the select lever.
Fig.12
Fig.13
Fig.14
Fig.15
Fig.16
Fig.17
Braket
H
Part i
I
Side (R)
assembly
I
In
Side (R) assembly
Spring
Gear cover
Elevator com
k
gear 1
j
Side (R) assembly
Elevator cam
Spring k
ll
m
Side (R) assembly I
I

(No.XA008)1-15
3.2.7 Removing the lifter assembly
(See Figs.18 to 22)
• Prior to performing the following procedure, remove the tray
assembly and side (L)/ side (R) assembly.
(1) From top of the body, turn the gear 1 clockwise to move the
lifter assembly upward as shown in Fig.19.
(2) From top of the body, turn the gear 2 clockwise to move the
hook toward the front until it stops.
(3) Move the hook stopper in the direction of the arrow while
pushing the tab oof the hook stopper to unlock it. Release
four joints pto detach from the rack holder.
Release the rod from part q.
(4) Turn the gear 1 clockwise again to move the lifter assembly
upward.
(5) Remove the lifter assembly from the body upward at posi-
tion rwhere the four pins on the right and left sides of the
lifter assembly fit to the notches of the s.
Move the lifter assembly toward the front and release from
the hook.
Fig.18
Fig.19
Fig.20
Fig.21
Fig.22
Gear 2 Gear 1
Lifter
assembly
Hook
Hook stopper
Gear 2
Gear 1
Hook
Hook stopper
Lifter assembly
Hook
Hook stopper
Rod
q
p
p
p
p
o
Gear 1 r r
r
sr
Lifter assembly
Lifter assembly
s

1-16 (No.XA008)
3.2.8 Removing the rack holder assembly/ sensor assembly
(See Figs.23 to 28)
• Prior to performing the following procedure, remove the tray
assembly, side (L)/ side (R) assembly, lifter assembly.
Attention:
If the slide gear of the body places at joint tof the rack holder
assembly, turn the gear 1 counterclockwise to move the slide
gear toward the front. Remove the rack holder assembly.
(1) Remove the three screws Jattaching the rack holder as-
sembly. Release joint tfrom the notch.
Caution:
When reattaching the rack holder assembly, do not nip
the wire uextending from the sensor assembly.
(2) Remove the two screws Kattaching the sensor assembly.
(3) Move the sensor assembly in the direction of the arrow to
release from the slot at joint v.
(4) Remove the spring attached to the bottom of the sensor as-
sembly from the boss won the sensor slider.
(5) Remove the screw Land Mattaching the sensor board and
SV resister respectively.If necessary, unsolder the sensor
board.
Caution:
When reattaching the SV resister, attach the sensor slider to
the sensor bracket and fit the lever on the bottom of the SV re-
sister into slot xof the sensor slider.
Caution:
When reattaching the rack holder assembly, turn the gear 1
clockwise to move the slide gear and slide lever inside the
body rearward.
• Let the wire extending from the sensor assembly through notch
uto the bottom of the body.
•Fitpiny of the slide lever into hole z of the sensor slider on the
bottom of the sensor assembly while attaching the spring to the
boss wof the sensor slider.
• Engage joint vof the sensor assembly to the notch of the body.
Fig.23
Fig.24
tJ
J
JGear 1
Rack holder
assembly
u
t
t
Rack holder
assembly Rack holder assembly

(No.XA008)1-17
Fig.25
Fig.26
Fig.27
Fig.28
K
K
w
u
vSpring
Sensor assembly
Spring
Sensor slider
xz
w
L
M
x
Soldering
point
Sensor board
SV resister
Sensor braket
Sensor slider
y
z
w
v
K
Sensor assembly
Slide gear
Spring Slide lever
K

1-18 (No.XA008)
3.2.9 Removing the motor
(See Fig.29, 30)
• Prior to performing the following procedure, remove the servo
control board and top cover.
Attention:
You need not to remove the tray assembly, and in such case,
move it.
(1) Remove the two belts on top of the body.
(2) Remove the four screws Nattaching the motor.
(3) Remove the motor board from the bottom of the body.
(Refer to the section “Removing the motor board”.)
Attention:
When removing the motor board with the motor, you need not
to unsolder four soldered parts.
Caution:
When reattaching the motor, turn the side where the label
should be put to the front side.
Fig.29
Fig.30
Motor Moto
r
NN
Belt Belt
Label

(No.XA008)1-19
3.2.10 Taking out the DISC in play mode
(See Figs.31 to 34)
• Prior to performing the following procedure, remove the top
cover.
• You can perform the procedure above even if you don't re-
move the changer mechanism assembly from the chassis of
the unit.
(1) Remove the three screws attaching the front panel assem-
bly, and move the front panel assembly in the front direc-
tion slightly.
(2) Remove the top cover upward.
(3) Unlock the tray assembly and draw out the tray assembly
toward the front.
(4) From top of the body, turn the gear 1 clockwise to move the
lifter assembly upward.
(5) From top of the body, turn the gear 2 clockwise to move the
sub tray remaining inside the lifter assembly toward the
front, then pull out.
(6) Take out the DISC on the sub tray.
(7) After clearing away the DISC, insert the sub tray into the
main tray.
Caution:
When reattaching the sub tray, move the tray stopper on
the bottom of the main tray in the direction of the arrow
to lock the sub tray certainly.
(8) Push the tray assembly toward the body and reattach.
Fig.31
Fig.32
Fig.33
Fig.34
Sub tray
Gear 1
Tray assembly
Gear 2
Tray assembly
Sub tray
Main tray
Sub tray
Tray stopper
Tray stoppe
r

1-20 (No.XA008)
SECTION 4
ADJUSTMENT
4.1 Test mode setting method
(1) Unplug the power plug.
(2) Insert power plug into outlet while pressing both "PLAY" key and "STOP" key of the main body.
(3) The FL display shows "∗0", and the main body turns to test mode. "∗" means the destination, and "0" means parameter adjust-
ment status.
(4) To release test mode, press "POWER" key of the main body.
NOTE:
Each pressing of "CHOICE" key of the remote controller in test mode changes the mode as follows.
4.2 Method of displaying version of firmware
(1) Set the main body at test mode.
(2) Press "CHOICE" key of the remote controller once. Then, version number and alphabetical letter of the system controller and
the back end are displayed in the FL display as follows:
4.3 Initialization method
Please initialize according to the following procedures in the following case:
• Just after you upgrade the firmware.
• After you confirm the symptoms that a customer points out. First Initialize, and then confirm whether the symptoms are improved or
not.
• After servicing, before returning the main body to a customer. (Initialized main body should be returned to a customer.)
(1) Set the main body at test mode.
(2) Press "PAUSE" key of the main body.
(3) When initialization is completed, the FL display changes from "∗0" to "∗00".(The left "0" of "00" is not always "0". It shows pa-
rameter adjustment status.)
Becames test mode
Version of firmware
Check mode
Not used
0 ---------------------------
_ _ ---------------
FL Display becames all lighting
CHECK --------------------------
EXPERT -------------------------
Back end
System controller
Front end
34_02_57
FL Display (Example)
2
5
8
1
4
7
3
6
9
010 +10
TITLE/
GROUP TV/VIDEO CANCELRETURN
VOL VOL+
CH
+
CH
VFPZOOM
AMP
VOL
AUDI O
3D
PHONIC
SUB TITLE ANGLE
DIMMER
REPEAT
OPEN/
CLOSE DISC SELECT
TV1 TV2 TV3
TV4 TV5 TV6
TV7 TV8 TV9
TV-/-- TV0 MUTING
TV DVD
NEXTPREVIOUS
SELECTCLEAR
SLOW
- SLOW+
T
O
P
M
E
N
U
M
E
N
U
O
N
S
C
R
E
E
N
C
H
O
I
C
E
ENTER
STANDBY/ON
TV DVD
PROGRESSIVE
SCAN
CHOICE key
(switch of mode)
STOP key
(for test mode)
FL Display
POWER key
PAUSE key
(for initialize)
PLAY key
(for test mode)