SERVICE MANUAL
COMPACT COMPONENT SYSTEM
MB36820055
DX-T9,DX-T7,DX-T5
DX-T9, DX-T7
Area suffix
A ------------------------ Australia
US ------------------------ Singapore
UW ----------- Brazil,Mexico,Peru
UX -------------------- Saudi Arabia
UG --- Turkey,South Africa,Egypt
UN ----------------------------- Asean
DX-T5
Area suffix
US ------------------------ Singapore
UW ----------- Brazil,Mexico,Peru
UX -------------------- Saudi Arabia
(CA-DXT5) (SP-XST5)(SP-XT5) (SP-XT5)(SP-XST5)(CA-DXT7,CA-DXT9)
UY ------------------------ Argentina
UG --- Turkey,South Africa,Egypt
UN ----------------------------- Asean
Main body
DX-T9
DX-T7
DX-T5
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
CA-DXT9
CA-DXT7
CA-DXT5
Front speaker
SP-XT9
SP-XT7
SP-XT5
Subwoofer
SP-WT9
SP-WT7
---
Surround speaker
SP-XST9
SP-XST7
SP-XST5
Center speaker
SP-XCT9
SP-XCT7
SP-XCT5
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-61
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.MB368
2005/5
SPECIFICATION
CA-DXT9
Amplifier section Output Power FRONT SPEAKERS 150 W per channel, min. RMS, driven into 4 Ω at 1 kHz
with no more than 10% total harmonic distortion.
CENTER SPEAKER 140 W per channel, min. RMS, driven into 6 Ω at 1 kHz
with no more than 10% total harmonic distortion.
SURROUND SPEAKERS 140 W per channel, min. RMS, driven into 6 Ω at 1 kHz
with no more than 10% total harmonic distortion.
SUBWOOFERS 150 W per channel, min. RMS, driven into 4 Ω 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/
Impedance*1
VIDEO OUT Color system NTSC/PAL selectable
VIDEO (composite) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance):1 V(p-p)/75 Ω
COMPONENT (Interlace/Progressive) (Y):1 V(p-p)/75 Ω
Speaker Terminals 4 Ω - 16 Ω (front speakers/subwoofers)
Tuner section FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 531 kHz - 1 602 kHz (at 9 kHz)
Disc player section Playable disc DVD Video/DVD Audio/CD/VCD/SVCD
Dynamic range 80 dB
Horizontal resolution 500 lines
Wow and flutter Immeasurable
Cassette deck section Frequency response Normal (type I) 50 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS)
General Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240
Power consumption 335 W (at operation)
Dimensions (W/H/D) (approx.) 185 mm × 460 mm × 361 mm
Mass (approx.) 11.4 kg
AUX 300 mV/47 kΩ
MIC 1/2 3.0 mV/50 kΩ
C (chrominance, burst):0.286 V(p-p)/75 Ω
(PB/PR):0.7 V(p-p)/75 Ω
6 Ω - 16 Ω (surround/center speakers)
530 kHz - 1 600 kHz (at 10 kHz)
CD-R/CD-RW (recorded in Audio CD/Video CD/Super
Video CD formats and MP3/WMA/JPEG files)
DVD-R (recorded in DVD Video format)
DVD-RW (recorded in DVD Video format or DVD-VR
format)
DVD-RAM (recorded in DVD-VR format)
V , (adjustable with the voltage selector), 50 Hz / 60 Hz
29 W (on standby)
*1: Measured at 1 kHz, with tape recording signal 300 mV
1-2 (No.MB368)
CA-DXT7
Amplifier section Output Power FRONT SPEAKERS 150 W per channel, min. RMS, driven into 4 Ω at 1 kHz
with no more than 10% total harmonic distortion.
CENTER SPEAKER 50 W per channel, min. RMS, driven into 6 Ω at 1 kHz
with no more than 10% total harmonic distortion.
SURROUND SPEAKERS 50 W per channel, min. RMS, driven into 6 Ω at 1 kHz
with no more than 10% total harmonic distortion.
SUBWOOFERS 150 W per channel, min. RMS, driven into 4 Ω 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/
Impedance*1
VIDEO OUT Color system NTSC/PAL selectable
VIDEO (composite) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance):1 V(p-p)/75 Ω
COMPONENT (Interlace/Progressive) (Y):1 V(p-p)/75 Ω
Speaker Terminals 4 Ω - 16 Ω (front speakers/subwoofers)
Tuner section FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 531 kHz - 1 602 kHz (at 9 kHz)
Disc player section Playable disc DVD Video/DVD Audio/CD/VCD/SVCD
Dynamic range 80 dB
Horizontal resolution 500 lines
Wow and flutter Immeasurable
Cassette deck section Frequency response Normal (type l) 50 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS)
General Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240
Power consumption 270 W (at operation)
Dimensions (W/H/D) (approx.) 185 mm × 460 mm × 361 mm
Mass (approx.) 11.4 kg
AUX 300 mV/47 kΩ
MIC 1/2 3.0 mV/50 kΩ
C (chrominance, burst):0.286 V(p-p)/75 Ω
(PB/PR):0.7 V(p-p)/75 Ω
6 Ω - 16 Ω (surround/center speakers)
530 kHz - 1 600 kHz (at 10 kHz)
CD-R/CD-RW (recorded in Audio CD/Video CD/Super
Video CD formats and MP3/WMA/JPEG files)
DVD-R (recorded in DVD Video format)
DVD-RW (recorded in DVD Video format or DVD-VR
format)
DVD-RAM (recorded in DVD-VR format)
V , (adjustable with the voltage selector), 50 Hz / 60 Hz
25 W (on standby)
*1: Measured at 1 kHz, with tape recording signal 300 mV
(No.MB368)1-3
DX-T5
Amplifier section Output Power MAIN SPEAKERS 150 W per channel, min. RMS, driven into 4 Ω 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/
Impedance*1
VIDEO OUT Color system NTSC/PAL selectable
VIDEO (composite) 1 V(p-p)/75 Ω
S-VIDEO Y (luminance):1 V(p-p)/75 Ω
COMPONENT (Interlace/Progressive) (Y):1 V(p-p)/75 Ω
Speaker Terminals 4 Ω - 16 Ω (Main speakers)
Tuner section FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 531 kHz - 1 710 kHz (at 9 kHz)
Disc player section Playable disc DVD Video/DVD Audio/CD/VCD/SVCD
Dynamic range 80 dB
Horizontal resolution 500 lines
Wow and flutter Immeasurable
Cassette deck section Frequency response Normal (type I) 50 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS)
General Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240
Power consumption 195 W (at operation)
Dimensions (W/H/D) (approx.) 185 mm × 460 mm × 361 mm
Mass (approx.) 10.9 kg
AUX 300 mV/47 kΩ
MIC 1/2 3.0 mV/50 kΩ
C (chrominance, burst):0.286 V(p-p)/75 Ω
(PB/PR):0.7 V(p-p)/75 Ω
6 Ω - 16 Ω (Surround speakers)
530 kHz - 1 710 kHz (at 10 kHz)
CD-R/CD-RW (recorded in Audio CD/Video CD/Super
Video CD formats and MP3/WMA/JPEG files)
DVD-R (recorded in DVD Video format)
DVD-RW (recorded in DVD Video format or DVD-VR
format)
DVD-RAM (recorded in DVD-VR format)
V , (adjustable with the voltage selector), 50 Hz / 60 Hz
20 W (on standby)
*1: Measured at 1 kHz, with tape recording signal 300 mV
1-4 (No.MB368)
Speakers
Main Speakers Type 3-Way 3-Speaker Bass Reflex (Magnetically-Shielded Type)
Speaker systems Woofer 18 cm cone × 1
Mid 5 cm cone × 1
Tweeter 2 cm dome × 1
Power handling capacity 150 W
Impedance 4 Ω
Frequency range 37 Hz - 31 000 Hz
Sound pressure level 85 dB/W·m
Dimensions (W/H/D) (approx.) 204 mm × 460 mm × 271 mm
Mass (approx.) 4.6 kg each
Surround Speakers Speaker systems 8 cm cone × 1
Power handling capacity 40 W
Impedance 16 Ω
Dimensions (W/H/D) (approx.) 105 mm × 230 mm × 125 mm
Mass (approx.) 0.7 kg each
Design and specifications are subject to change without notice.
(No.MB368)1-5
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.
1-6 (No.MB368)
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
Card wire
DVD pickup
DVD changer mechanism assembly
(No.MB368)1-7
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)
1-8 (No.MB368)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.MB368)1-9
SECTION 3
A
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 six
screws A attaching the metal cover. (See Figs.1 and 2.)
(2) From the back side of the main body, remove the eight
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 arrow. (See Figs.1 and 2.)
Metal cover
B
Metal cover
Fig.1
Fig.2
Metal cover
A
BB
Fig.3
1-10 (No.MB368)
3.1.2 Removing the front panel assembly
(See Figs.4 to 6)
• Remove the metal cover.
(1) From the right side of the main body, disconnect the card
wire from the connectors CN740
main board. (See Fig.4.)
(2) From the left side of the main body, disconnect the card
wires from the connectors (CN720
side of the main board. (See Fig.5.)
(3) Disconnect the parallel wire while releasing the lock of the
connector CN105
the arrow. (See Fig.5.)
(4) Disconnect the parallel wire from the connector CN202
the bridge board. (See Fig.5.)
(5) From the both side of the main body, remove the two
screws C attaching the front panel assembly to the main
body. (See Figs.4 and 5.)
(6) From the bottom side of the main body, remove the two
screws D attaching the front panel assembly. (See Fig.6.)
(7) From the both side of the main body, release the claws a
and remove the front panel assembly from the main body
in the direction of the arrow. (See Figs.4 to 6.)
Front panel assembly Main board
on the primary board in the direction of
on the reverse side of the
, CN730) on the forward
Front panel assemblyMain board
CN730 CN720
C
on
C
Primary board
CN202
Bridge board
Front panel assembly
a
CN740
Fig.4
CN105
Fig.5
a
Lock
D
Fig.6
(No.MB368)1-11
3.1.3 Removing the tuner
(See Fig.7)
• Remove the metal cover.
(1) From the back side of the main body, remove the two
screws E attaching the tuner to the rear panel.
(2) Take out the tuner from the main body and disconnect the
card wire from the connector CN1
on the tuner.
Rear panel Tuner
E
CN1
Tuner
Fig.7
1-12 (No.MB368)
3.1.4 Removing the DVD changer mechanism assembly
(See Figs.8 to 10)
• Remove the metal cover.
(1) From the left side of the main body, disconnect the card
wires from the connectors (CN800
board. (See Fig.8.) [For DX-T9, DX-T7]
(2) From the left side of the main body, disconnect the card
wires from the connector CN800
Fig.8.) [For DX-T5]
(3) From the top side of the main body, remove the two screws
F attaching the DVD changer mechanism assembly on the
mecha chassis. (See Fig.9.)
(4) Take out the DVD changer mechanism assembly from the
main body and disconnect the card wire from the connector
on the video board. (See Fig.9.)
CN930
Reference:
When the resolution of the DVD changer mechanism assembly is done sequentially, release the claws b of the tray fitting
and remove the five tray fitting from the DVD changer mechanism assembly. (See Fig.10.)
DVD changer mechanism assembly
CN800 CN810
, CN810) on the main
on the main board. (See
DVD changer mechanism assembly
FF
Main board
Fig.8
Video board
CN930
Fig.9
Tray fitting
DVD changer mechanism assembly
Fig.10
bb
(No.MB368)1-13
3.1.5 Removing the video board
(See Figs.11 and 12.)
• Remove the metal cover and DVD changer mechanism as-
sembly .
(1) From the back side of the main body, remove the four
screws G attaching the video board to the rear panel. (See
Fig.11.)
(2) From the top side of the main body, disconnect the card
wires from the connectors (CN920
board. (See Fig.12.)
(3) Take out the video board in the direction of the arrow while
removing it from the sections c of the mecha chassis. (See
Fig.12.)
, CN931) on the video
G
Video board
Rear panel
Fig.11
Mecha chassis
CN920
cc
Video board
Fig.12
CN931
1-14 (No.MB368)
3.1.6 Removing the fan
r
(See Figs.13 and 14.)
• Remove the metal cover.
(1) From the back side of the main body, remove the screw H
attaching the rear cover to the rear panel. (See Fig.13.)
(2) Remove the joints d and remove the rear cover. (See
Fig.13.)From the left side of the main body, disconnect the
wire from the connector CN304
(See Fig.14.) [For DX-T9, DX-T5]
(3) Remove the joints d and remove the rear cover. (See
Fig.13.)From the left side of the main body, disconnect the
wire from the connector CN604
(See Fig.14.) [For DX-T7]
(4) Release the joints e of the fan bracket in the direction of the
arrow and take out the fan with the fan bracket. (See
Fig.14.)
Reference:
Remove the fan from the fan bracket as required.
on the amplifier 2 board.
on the amplifier 2 board.
Fan bracket
e
Amplifier 2
board
CN304
(CN604)
d
H
d
Fan
Fig.14
dd
Rear paneld Rear cove
Fig.13
(No.MB368)1-15
3.1.7 Removing the rear panel
(See Fig.15)
• Remove the metal cover and fan.
(1) Remove the two screws J and eighteen screws K attaching
the rear panel. [For DX-T9, DX-T7]
(2) Remove the two screws J and seventeen screws K attach-
ing the rear panel. [For DX-T5]
(3) Release the sections f of the rear panel and remove the
joints g of the mecha chassis in the direction of the arrow.
(4) Remove the rear panel from the main body.
[DX-T9, DX-T7]
K
g
K
Rear panel
K
Mecha chassis
g
K
K
[DX-T5]
K
J
K
K
ff
Rear panel
K
Mecha chassis
g
g
1-16 (No.MB368)
K
K
K
J
ff
Fig.15
3.1.8 Removing the main board
(See Fig.16)
• Remove the metal cover, tuner, fan and rear panel.
(1) From the right side of the main body, remove the screw L
and screw M attaching the main board.
(2) From the inside of the main body, disconnect the card wires
from the connectors (CN720
CN800, CN810, CN820, CN830) on the forward side of the
main board. [For DX-T9, DX-T7]
(3) From the inside of the main body, disconnect the card wires
from the connectors (CN720
, CN820, CN830) on the forward side of the main
CN800
board. [For DX-T5]
(4) Disconnect the main board from the bridge board toward
this side while releasing the claw h of the connector CN850
on the main board.
(5) Disconnect the main board from the surround terminal
board in the direction of the arrow while releasing the claw
i of the connector CN970
[For DX-T7]
(6) Disconnect the main board from the surround terminal
board in the direction of the arrow while releasing the claw
i of the connector CN990
[For DX-T9]
Note:
When releasing the claws (h, i), take care not to break them.
, CN730, CN740, CN760,
, CN730, CN740, CN760,
on the surround terminal board.
on the surround terminal board.
M
CN720
Main board
CN740
CN810
L
Main board
i
CN970
(CN990)
CN800
CN760
Main board
Bridge board
CN820
CN830
CN730
h
CN850
Surround
terminal board
Fig.16
(No.MB368)1-17
3.1.9 Removing the amplifier 1 and amplifier 2 boards
(See Fig.17 to 19) [For DX-T9]
• Remove the metal cover, tuner, fan, rear panel and main
board.
(1) (1)From the right side of the main body, remove the screw
N attaching the earth wires to the bottom chassis. (See
Fig.17.)
Reference:
After reassembling, fix the earth wires with the spacer as
before. (See Fig.17.)
(2) Disconnect the amplifier 2 board from the bridge board in
the direction of the arrow while releasing the claw j of the
connector CN200
(3) (3)From the left side of the main body, disconnect the card
wire from the connector CN303
(See Fig.17.)
(4) Disconnect the amplifier 1 board from the bridge board in
the direction of the arrow while releasing the claw k of the
connector CN201
Note:
When releasing the claws (j, k), take care not to break
them. (See Figs.17 and 18.)
(5) Take out the amplifier 1 board and amplifier 2 board togeth-
er from the main body.
(6) Remove the two screws P and remove the leaf spring. (See
Fig.19.)
(7) Remove the two screws P and remove the amplifier 1
board from the heat sink. (See Fig.19.)
(8) Remove the four screws P and remove the amplifier 2
board from the heat sink. (See Fig.19.)
on the bridge board. (See Fig.17.)
on the amplifier 1 board.
on the bridge board. (See Fig.18.)
3.1.11 Removing the amplifier 1 and amplifier 2 boards
(See Fig.17 to 19) [For DX-T5]
• Remove the metal cover, tuner, fan, rear panel and main
board.
(1) From the right side of the main body, remove the screw N
attaching the earth wires to the bottom chassis. (See
Fig.17.)
Reference:
After reassembling, fix the earth wires with the spacer as
before. (See Fig.17.)
(2) Disconnect the amplifier 2 board from the bridge board in
the direction of the arrow while releasing the claw j of the
connector CN200
(3) From the left side of the main body, disconnect the card
wire from the connector CN303
(See Fig.17.)
(4) Disconnect the amplifier 1 board from the bridge board in
the direction of the arrow while releasing the claw k of the
connector CN201
Note:
When releasing the claws (j, k), take care not to break
them. (See Figs.17 and 18.)
(5) Take out the amplifier 1 board and amplifier 2 board togeth-
er from the main body.
(6) Remove the two screws P attaching the leaf spring and re-
move the amplifier 1 board from the heat sink. (See Fig.19.)
(7) Remove the two screws P and remove the amplifier 2
board from the heat sink. (See Fig.19.)
on the bridge board. (See Fig.17.)
on the amplifier 1 board.
on the bridge board. (See Fig.18.)
3.1.10 Removing the amplifier 1 and amplifier 2 boards
(See Fig.17 to 19) [For DX-T7]
• Remove the metal cover, tuner, fan, rear panel and main
board.
(1) From the right side of the main body, remove the screw N
attaching the earth wires to the bottom chassis. (See
Fig.17.)
Reference:
After reassembling, fix the earth wires with the spacer as
before. (See Fig.17.)
(2) Disconnect the amplifier 2 board from the bridge board in
the direction of the arrow while releasing the claw j of the
connector CN200
(3) From the left side of the main body, disconnect the card
wire from the connector CN603
(See Fig.17.)
(4) Disconnect the amplifier 1 board from the bridge board in
the direction of the arrow while releasing the claw k of the
connector CN201
Note:
When releasing the claws (j, k), take care not to break
them. (See Figs.17 and 18.)
(5) Take out the amplifier 1 board and amplifier 2 board togeth-
er from the main body.
(6) Remove the two screws P and remove the leaf spring. (See
Fig.19.)
(7) Remove the two screws P and remove the amplifier 1
board from the heat sink. (See Fig.19.)
(8) Remove the three screws P and remove the amplifier 2
board from the heat sink. (See Fig.19.)
on the bridge board. (See Fig.17.)
on the amplifier 1 board.
on the bridge board. (See Fig.18.)
1-18 (No.MB368)
Bridge board Amplifier 2 board
[DX-T9]
Amplifier 1 board Amplifier 2 board
Spacer
Amplifier 1 board
Earth wires
N
CN200
Bridge board
Fig.17
Bottom chassis
j
CN303
(CN603)
P
P
Heat sink
Leaf spring
[DX-T7]
Amplifier 1 board Amplifier 2 board
P
P
P
P
P
P
k
CN201
Bridge board
Bridge board
Fig.18
Leaf spring
[DX-T5]
Amplifier 1 board Amplifier 2 board
Heat sink
P
Heat sink
Leaf spring
Fig.19
P
(No.MB368)1-19
3.1.12 Removing the primary board
(See Fig.20)
• Remove the metal cover, tuner, fan, rear panel, main board,
amplifier 1 board and amplifier 2 board.
(1) From the left side of the main body, remove the screw Q
and screw R attaching the primary board.
(2) Disconnect the wires from the connectors (CN103
on the primary board.
(3) Disconnect the parallel wire while releasing the lock of the
connector CN105
the arrow.
(4) Release the claw m in thr direction of the arrow and discon-
nect the primary board from the bridge board toward this
side while releasing the claw n of the connector CN104
the primary board.
Note:
When releasing the claw n, take care not to break it.
(5) Disconnect the wires from the connectors (CN101
on the forward side of the primary board.
(6) Disconnect the power cord from the connector CN100
the primary board.
(7) Take out the primary board from the main body.
on the primary board in the direction of
, CN106)
on
, CN102)
on
CN102
CN101
Bridge board
n
CN104
Primary board
Lock
CN105
CN103
CN106
Q
3.1.13 Removing the bridge board
(See Fig.21)
• Remove the metal cover, tuner, fan, rear panel, main board,
amplifier 1 board, amplifier 2 board and primary board.
(1) From the top side of the main body, disconnect the parallel
wire from the connector CN202
(2) Remove the wire holders bundling the wires.
Reference:
After reassembling, bundle the wires with the wire hold-
ers as before.
(3) Remove the screw S attaching the bridge board.
(4) Take out the bridge board from the main body.
on the bridge board.
CN100
Power cord
CN202 Wire holders
R
m
Primary board
Fig.20
1-20 (No.MB368)
Bridge board S
Fig.21
3.1.14 Removing the surround terminal board
(See Fig.22.) [For Dx-T9, DX-T7]
• Remove the metal cover, tuner, fan, rear panel, main board,
amplifier 1 board, amplifier 2 board, primary board and bridge
board.
(1) Remove the screw T attaching the surround terminal board
on the bottom chassis.
(2) Remove the surround terminal board from the section (p,
q) of the bottom chassis.
(3) Take out the surround terminal board from the main body.
3.1.15 Removing the power transformer
(See Fig.22)
• Remove the metal cover, tuner, fan, rear panel, main board,
amplifier 1 board, amplifier 2 board, primary board and bridge
board.
(1) Remove the four screws U attaching the power transform-
er.
(2) Take out the power transformer from the main body.
Bottom chassis
q
U
Power transformer
UU
3.1.16 Removing the FL board
(See Fig.23)
• Remove the metal cover and front panel assembly.
(1) From the inside of the front panel assembly, remove the
parallel wire from the wire holder.
(2) Remove the eleven screws V and take out the FL board.
Surround terminal board T
Fig.22
Front panel assembly
V
p
V
V
FL board
V
Fig.23
Wire holder
(No.MB368)1-21
3.1.17 Removing the cassette A mechanism assembly
(See Fig.24)
• Remove the metal cover and front panel assembly.
(1) From the inside of the front panel assembly, remove the
four screws W and screw X attaching the cassette A mechanism assembly.
(2) Disconnect the card wires from the connectors (CN46
CN47) on the cassette A mechanism assembly
(3) Take out the cassette A mechanism assembly from the
front panel assembly.
Reference:
Remove the trans shield as required.
Cassette A mechanism assembly
,
W
W
CN46
X
CN47
W
W
3.1.18 Removing the cassette B mechanism assembly
(See Fig.25)
• Remove the metal cover and front panel assembly.
(1) From the inside of the front panel assembly, remove the
four screws W and screw X attaching the cassette B mechanism assembly.
(2) Take out the cassette B mechanism assembly from the
front panel assembly.
(3) Disconnect the card wires from the connectors (CN33
CN34) on the cassette B mechanism assembly
Reference:
Remove the trans shield as required.
Front panel assembly Trans shield
Fig.24
Front panel assembly
,
CN34
W
CN33
W
X
W
W
1-22 (No.MB368)
Cassette B mechanism assembly
Fig.25
Trans shield
3.1.19 Removing the microphone amplifier board
(See Figs.26 and 27)
• Remove the metal cover, front panel assembly and cassette B
mechanism assembly.
(1) From the front side of the front panel assembly, pull out the
microphone volume knob. (See Fig.26.)
(2) From the inside of the front panel assembly, remove the
two screws Y and remove the support 1 board. (See
Fig.27.)
(3) Remove the screw Y and remove the support 2 board.
(See Fig.27.)
(4) Remove the screw Z and remove the support 3 board. (See
Fig.27.)
(5) Take out the microphone amplifier board from the front
panel assembly.
Reference:
After attaching the microphone amplifier board, fix the card
wire with the spacer as before.
Front panel assembly
Microphone
volume knob
Fig.26
Front panel assembly Support 1 board
Support 3 boardSupport 2 board
Spacer
Y Z
Microphone amplifier board
Fig.27
(No.MB368)1-23
3.2 DVD changer mechanism assembly section
Remove the DVD changer mechanism assembly from the main body. (See "Removing the DVD changer mechanism assembly".)
3.2.1 Removing the tray assemblies
(See Figs.1 to 5)
(1) From the top side of the main body, remove the two screws
A from the top cover and release the two joints a on the
both sides of the DVD changer mechanism assembly. (See
Figs.1 and 2.)
(2) Remove the two rods from the top cover and remove the
top cover from the lifter assembly. (See Figs.1 and 2.)
(3) Remove the open det. lever on the left side of the DVD
changer mechanism assembly. (See Fig.3.)
(4) From the right side of the DVD changer mechanism as-
sembly, draw out the tray assemblies toward the front while
pushing the part b of the side (R) assembly. (See Figs.4
and 5.)
Note:
The tray can be locked if all tray assemblies are attached.
(5) From the topside of the DVD changer mechanism assem-
bly, move the stopper tabs c in the direction of the arrow
and release them. Pull out the tray assemblies from the
DVD changer mechanism assembly. (See Fig. 5.)
Note:
Remove the tray assembly from top tray 5 in order.
Reference:
When reattaching the tray assembly, or when removing the
disc remaining inside, refer to another section "3.3.15 Taking
out the disc in the play mode".
A
a
Lifter assembly
Fig.1
Rods
Top cover
A
a
Rods
Top cover
a
a
Lifter assembly
Fig.2
1-24 (No.MB368)
Fig.3
r
Open det. leve
Tray assemblies
c
b
Side(R) assembly
Fig.4
Tray assembly
Fig.5
(No.MB368)1-25
3.2.2 Removing the DVD servo board
(See Figs.6 to 8)
Caution:
Solder the short land sections d on the DVD pickup before disconnecting the card wire extending from the DVD pickup. If
you do not follow this instruction, the DVD pickup may be damaged.
(1) From the topside of the DVD changer mechanism assem-
bly, solder the short land sections d on the DVD pick up.
(See Fig.6.)
(2) From the bottom side of the DVD changer mechanism as-
sembly, disconnect the card wire from the connectors
(CN201
Reference:
(3) Disconnect the wires from the connectors (CN452
on the DVD servo board. (See Fig.7.)
(4) Remove the two screws B attaching the DVD servo board.
(See Fig.7.)
(5) From the reverse side of the DVD servo board, release the
lock of the connector CN101
and disconnect the card wire. (See Fig.8.)
Caution:
Unsolder the solders from the short land sections d after reassembling. (See Fig.6.)
3.2.3 Removing the switch board
(1) From the bottom side of the DVD changer mechanism as-
sembly, remove the screw C attaching the switch board on
the DVD changer mechanism assembly.
(2) Disconnect the wires from the connectors (CN452
on the DVD servo board.
(3) Release the wires from the section f and remove the switch
board.
(4) Release the wires from the sections g and remove the
switch board.
Reference:
When reassembling, pass the wires through the sections (f, g)
as before.
, CN451) on the DVD servo board. (See Fig.7.)
When connecting the card wire to the connector CN451
pass it through the sections e on the DVD traverse
mechanism assembly. (See Fig.7.)
, CN453)
in the direction of the arrow
(See Fig.7)
, CN453)
d
,
DVD changer mechanism assembly
Fig.6
DVD changer mechanism assembly
e
CN451
DVD pickup
CN453
f
g
Switch board
B
C
CN201
DVD servo board
DVD traverse mechanism assembly
DVD servo board
B
Fig.7
CN452
CN101
1-26 (No.MB368)
Lock
Fig.8
3.2.4 Removing the motor board
(See Figs.9 and 10)
(1) From the top side of the DVD changer mechanism assem-
bly, remove the two belts from the motor pulleys. (See
Fig.9.)
Note:
Take care not to attach grease on the belt.
(2) Remove the two screws D attaching the motors to the load-
er assembly. (See Fig.9.)
(3) From the bottom side of the DVD changer mechanism as-
sembly, remove the two screws E. (See Fig.10.)
(4) Disconnect the connector CN2
tray switch board and remove the motor board. (See
Fig.10.)
(5) Disconnect the card wire from the connector CN1
forward side of the motor board. (See Fig.10.)
Note:
When connecting the card wire, let the card wire through the
slots h of the motor board. (See Fig.10.)
Reference:
You need not to remove the tray assemblies, and in such case,
move it.
3.2.5 Removing the motor
(See Fig. 10)
• Remove the motor board.
(1) From the reverse side of the motor board, unsolder the four
soldered sections i on the motor board.
(2) From the forward side of the motor board, remove the mo-
tors.
on the motor board from the
on the
Belt
D
Motor Motor
Motor pulleys
Belt
D
Loader assembly
Fig.9
Motors
Motor board
i
Tray switch
board
E
CN2
CN1
h
DVD changer mechanism assembly
Fig.10
Motors
Motor board
E
(No.MB368)1-27
3.2.6 Removing the DVD traverse mechanism assembly
(See Fig.11)
• Remove the tray assemblies and DVD servo board.
(1) From the bottom side of the DVD changer mechanism as-
sembly, remove the three screws F attaching the DVD
traverse mechanism assembly.
(2) Remove the wires from the section j.
(3) Take out the DVD traverse mechanism assembly from the
DVD changer mechanism assembly.
DVD changer mechanism assembly
F
j
F
F
DVD traverse mechanism assembly
Fig.11
1-28 (No.MB368)
3.2.7 Removing the DVD pickup
(See Figs.12 to 14)
• Remove the tray assemblies, DVD servo board and DVD
traverse mechanism assembly.
(1) From the top side of the DVD traverse mechanism assem-
bly, release the lock of the connector on the DVD pickup
and disconnect the card wire in the direction of the arrow.
(See Fig.12.)
(2) Turn the screw shaft gear in the direction of the arrow 1 to
move the DVD pickup in the direction of the arrow 2. (See
Fig.12.)
(3) Remove the screw G attaching the feed bracket and re-
move the feed bracket from the sections k. (See Fig.12.)
(4) Release the claw m of the thrust spring in the direction of
the arrow and remove the thrust spring. (See Fig.12.)
(5) Remove the guide shaft from the sections (n, p) on the
C.TM chassis. (See Fig.13.)
(6) Remove the section q of the DVD pickup. (See Fig.13.)
(7) Remove the two screws H attaching the rack arm spring
and rack arm. (See Fig.14.)
(8) Pull the guide shaft from the DVD pickup in the direction of
the arrow. (See Fig.14.)
3.2.8 Attaching the DVD pickup
(See Figs.12 to 14)
(1) Attach the guide shaft to the DVD pickup and attach the
rack arm spring and rack arm with the screws H. (See
Fig.14.)
(2) Attach the section q of the DVD pickup to the C.TM chassis
first and attach the guide shaft to the sections (n, p). (See
Fig.13.)
Reference:
When attaching the guide shaft to the section p, attach it
under the rod spring. (See Fig.13.)
(3) Attach the thrust spring and feed bracket with the screw G.
(See Fig.12.)
(4) Turn the screw shaft gear in the direction of the arrow 1 to
move the DVD pickup in the direction of the arrow 2. (See
Fig.15.)
(5) Connect the card wire to the connector on the DVD pickup.
(See Fig.15.)
DVD traverse mechanism assembly
Thrust spring
Connector
Screw shaft gear
DVD pickup
Fig.12
DVD pickup
1
k
Thrust spring
q
Feed bracket
2
G
m
p
Rod spring
n
Guide shaft
C.TM chassis
Fig.13
(No.MB368)1-29
Guide shaft
DVD pickup
Rack arm
H
Rack arm spring
Fig.14
Connector
DVD pickup
222
Screw shaft gear
Fig.15
1
1-30 (No.MB368)
3.2.9 Removing the spindle motor board
(See Figs.16 and 17)
• Remove the tray assemblies, DVD servo board and DVD
traverse mechanism assembly.
(1) From the top side of the DVD traverse mechanism assem-
bly, remove the wires from the soldered sections r on the
spindle motor board. (See Fig.16.)
(2) From the bottom side of the DVD traverse mechanism as-
sembly, remove the three screws J attaching the spindle
motor board. (See Fig.17.)
Reference:
When attaching the spindle motor board, let the card wire
through the hole s on the C.TM chassis. (See Fig.17.)
DVD traverse mechanism assembly
Spindle motor board
r
Fig.16
DVD traverse mechanism assembly
s
J
C.TM chassis
Fig.17
(No.MB368)1-31
3.2.10 Removing the feed motor
(See Figs.18 and 19)
• Remove the tray assemblies and DVD traverse mechanism
assembly.
(1) From the top side of the DVD traverse mechanism assem-
bly, remove the screw K attaching the feed bracket and remove the feed bracket from the sections t. (See Fig.18.)
(2) Release the claw u of the thrust spring in the direction of
the arrow and remove the thrust spring. (See Fig.18.)
(3) Remove the screw shaft from the section v and remove it
in the direction of the arrow. (See Fig.19.)
(4) Remove the middle gear. (See Fig.19.)
(5) Remove the screw L attaching the feed motor to the C.TM
chassis. (See Fig.19.)
(6) Remove the wires from the soldered sections w on the
spindle motor board. (See Fig.19.)
(7) Take out the feed motor from the motor base.
Reference:
After attaching the feed motor, pass the wires through the sections x on the C.TM chassis as before. (See Fig.19.)
Feed bracket
Thrust spring
K
t
Thrust spring
Spindle motor board
w
x
Fig.18
Middle gear
v
Screw shaft
u
C.TM chassis
1-32 (No.MB368)
L
Fig.19
3.2.11 Removing the side (L) and tray switch board
(See Figs.20 to 22)
• Remove the tray assemblies.
(1) From the topside of the DVD changer mechanism assem-
bly, remove the two screws M attaching the side (L). (See
Fig.20.)
(2) From the left side of the DVD changer mechanism assem-
bly, disconnect the connector CN3
from the motor board and detach the side (L) in an upward
direction. (See Fig.21.)
(3) Remove the screw N attaching the tray switch board to the
side (L). (See Fig.22.)
(4) Release the joint tab y of the side (L) in the direction of the
arrow 1 and release the joint tab z while removing the tray
switch board in the direction of the arrow 2. (See Fig.22.)
on the tray switch board
SIde(L)
M
M
DVD changer mechanism assembly
Fig.20
M
Side(L)
M
CN3
Tray switch board
Motor board
Side(L)
Fig.21
y
1
Tray switch board
Fig.22
2
z
N
(No.MB368)1-33
3.2.12 Removing the side (R) assembly
(See Fig.23 to 27)
• Remove the tray assemblies and DVD servo board.
(1) From the inside of the side (R) assembly, release the two
tabs aa of the gear cover and remove the gear cover outward. (See Figs.23 and 24.)
(2) From the right side of the DVD changer mechanism as-
sembly, remove the elevator spring attached to the hook
ab of the loader assembly. (See Figs.24 and 25.)
(3) From the top side of the DVD changer mechanism assem-
bly, turn the gear 1 clockwise to move the elevator cam
rearward. (See Fig.25.)
(4) Move the two slots ac and joint ad of the elevator cam and
remove the elevator cam outward. (See Fig.25.)
(5) Remove the three screws P and detaches the side (R) as-
sembly upward. (See Figs.26 and 27.)
Note:
When reattaching the side (R) assembly, make sure to fit the
shaft (part ae) into the slot of the select lever. (See Fig.26.)
Side(R) assembly
aa
P
Elevator spring
ac
Fig.25
P
ae
ab
Elevator cam
acad
Select lever
Side(R) assembly
Gear cover
Loader assembly
P
Fig.23
Elevator spring
Gear 1
Side(R) assembly
Fig.26
P
ab
P
Fig.24
Side(R) assembly
Fig.27
1-34 (No.MB368)
3.2.13 Removing the lifter assembly
(See Figs.28 to 32)
• Remove the tray assemblies, DVD servo board, side (L) and
side (R) assembly.
(1) (1) From the top side of the DVD changer mechanism as-
sembly, turn the gear 1 clockwise to move the lifter assembly upward. (See Figs.28 and 29.)
(2) Turn the gear 2 clockwise to move the hook toward the
front until it stops. (See Figs.28 and 29.)
(3) Move the hook stopper in the direction of the arrow 2 while
pushing the tab af of the hook stopper to unlock it in the direction of the arrow 1 and release four joints ag to detach
from the rack holder. (See Fig.30.)
(4) Release the rod (L) from part ah. (See Fig.30.)
(5) Turn the gear 1 clockwise again to move the lifter assembly
upward. (See Fig.31.)
(6) Remove the lifter assembly from the DVD changer mecha-
nism assembly upward at the positions ai where the four
pins on the both sides of the lifter assembly fit to the notch-
es of the loader assembly. (See Fig.31.)
(7) Move the lifter assembly in the direction of the arrow and
release it from the hook. (See Fig.32.)
Hook stopper
Gear 2
Gear 1
ag
Rack holder
af
Hook
ag
1
ag
Hook stopper
Fig.30
Lifter assembly
ag
2
Rod(L)
ai
ah
ai
Hook
Gear 2
Lifter assembly
Fig.28
Gear 1
Lifter assembly
Gear 1
ai
Loader assembly
Fig.31
Lifter assembly
ai
Hook stopper
Hook
Fig.32
Hook
Fig.29
(No.MB368)1-35
3.2.14 Removing the sensor board and SV resistor
(See Fig.33)
• Remove the tray assemblies, side (L), side (R) assembly and
lifter assembly.
(1) Remove the solders from the soldered sections aj on the
sensor board and remove the wires.
(2) Remove the two screws Q and take out the sensor board
with the SV resistor.
Reference:
• Remove the soldered section ap on the sensor board as required.
• When reassembling, pass the wires through the slot ak of
the sensor board as before.
Note:
When reattaching the SV. resister, fit the projection am on the
bottom of the SV. resister into slot an of the sensor slider.
Sensor board
Q
ap
Q
ak
aj
SV resistor
am
an
SV resistor
Slider
Fig.33
1-36 (No.MB368)
3.2.15 Taking out the disc in the play mode
(See Fig.34 to 37)
Reference:
Refer to "3.3.1 Removing the tray assemblies".
(1) From the top side of the DVD changer mechanism assem-
bly, remove the top cover.
(2) Unlock the tray assemblies and draw out the tray assem-
blies toward the front.
(3) From the top side of the DVD changer mechanism assem-
bly, turn the gear 1 clockwise to move the lifter assembly
upward. (See Fig.34.)
(4) Turn the gear 2 clockwise to move the sub tray remaining
inside the lifter assembly toward the front, then pull out.
(See Fig.34.)
(5) Take out the disc on the sub tray. (See Fig.35.)
(6) After clearing away the disc, insert the sub tray into the
main tray. (See Fig.36.)
Note:
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. (See Figs.36 and 37.)
(7) Push the tray assembly toward the DVD changer mecha-
nism assembly and reattach.
Tray assembly
Gear 2
Gear 1
Sub tray
Fig.34
Tray assembly
Fig.35
Disc
Sub tray
(No.MB368)1-37
Tray stopper
r
Main tray
Sub tray
Fig.36
Tray stoppe
1-38 (No.MB368)
Fig.37
3.3 Cassette mechanism assembly [A MECHA]
3.3.1 Removing the Play head
(See Fig.1 to 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 CN48
head amplifier 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
Fly wheel R
Head mount
Head
Flexible wire
Head
Trigger arm
Fig.1
Fly wheel R
Fig.2
Azimuth screw
for reversing
Spring
Fig.3
CN48
(No.MB368)1-39
3.3.2 Removing the head amplifier board
(See Fig.4)
(1) Turn over the cassette mechanism assembly and remove
the three screws A attaching the head amplifier board.
(2) (2) Disconnect the flexible wire from connector CN8 on the
head amplifier board.
(3) Disconnect connector CN41
from connector CN1 on the cassette switch board.
Reference:
If necessary, unsolder the 4-pin wire soldered to the main motor.
3.3.3 Removing the main motor
(See Fig.4 to 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 board
of the head amplifier board
Main motor assembly
Motor pulley
Capstan belt
Fig.6
CN48
Flexible wire
Capstan belt
A
A
CN41
4pin wire
A
Main motor assembly
Fig.4
Main motor assembly
B
Fly wheel
Capstan belt
Main motor assembly
Motor pulley
Fig.7
1-40 (No.MB368)
Fig.5
3.3.4 Removing the flywheel
(See Fig.8, 9)
• Prior to performing the following procedure, remove the head
amplifier 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.
(2) Pull out the flywheels backward.
Fly wheel R Fly wheel L
Fig.8
3.3.5 Removing the cassette switch board and solenoid
(See Fig.10)
• Prior to performing the following procedure, remove the head
amplifier board.
(1) Remove the screw C.
(2) Release the tab a, b, c, d and e retaining the cassette
switch board.
(3) Release the tab f and g attaching the solenoid on the cas-
sette switch board.
(4) The cassette switch board and solenoid come off.
Fly wheel R
Capstan shaft R
Solenoid
g
f
Slit washer
Fig.9
Cassette switch board
c
b
a
Fly wheel L
Capstan shaft L
d
C
Fig.10
e
(No.MB368)1-41
3.3.6 Reattaching the Play head
r
(See Fig.11 to 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).
(2) Tighten the azimuth screw for reversing.
(3) Reattach the spring from the back of the Play head.
(4) Connect the flexible wire to connector CN48
amplifier board.
on the head
P'O'P'
V'
V'
U' Q'
Head mount assembly
Head mount assembly
O
P
Q
V
Direction cove
Fig.11
Direction
cover
U
1-42 (No.MB368)
Fig.12
Head
Spring
Flexible wire
Azimuth screw for reversing
Head mount
CN48
Head amplifier board
Fig.13
3.4 Cassette mechanism assembly [B MECHA]
3.4.1 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.MB368)1-43
3.4.2 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.
3.4.3 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
1-44 (No.MB368)
Capstan belt
Motor pulley
Fig.7
3.4.4 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
3.4.5 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.MB368)1-45
3.4.6 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
1-46 (No.MB368)
CN31
Fig.13
Head amplifier &
mechanism control board
3.5 Speaker section
3.5.1 Removing the speaker net assembly
(See Fig.1)
From the front side of the speaker main body, remove the sections a of the speaker net assembly toward this side.
Speaker net assembly
a
a
aa
a
Fig.1
a
(No.MB368)1-47
3.5.2 Removing the front panel assembly
(See Figs.2 and 3)
• Remove the speaker net assembly as required.
(1) Insert the tip of a flat-bladed screwdriver or similar tool into
the space between the speaker main body and front panel
assembly, and lift the front panel assembly little by little to
remove the sections b. (See Fig.2.)
Note:
To prevent damaging the front panel assembly and
speaker main body, insert cushioning plates etc. into the
space between the speaker main body and front panel
assembly.
(2) From the inside of the front panel assembly, disconnect the
wires from the terminals of the tweeter. (See Fig.3.)
Front panel assembly
b
b
bb
b
Fig.2
Front panel assembly
Wires
Fig.3
b
Terminals
Tweeter
1-48 (No.MB368)
3.5.3 Removing the speaker
(See Fig.4)
• Remove the front panel assembly.
(1) From the front side of the speaker main body, remove the
four screws A attaching the speaker.
(2) Take out the speaker from the speaker main body and dis-
connect the wires from the terminal on the back side of the
speaker.
Speaker
A
A
Terminal
Wires
Fig.4
(No.MB368)1-49
3.6 Subwoofer section (For DX-T9, DX-T7)
3.6.1 Removing the front panel assembly
(See Fig.1)
Insert the tip of a flat-bladed screwdriver or similar tool into the
space between the subwoofer main body and front panel assembly, and lift the front panel assembly little by little to remove the
sections a.
Note:
To prevent damaging the front panel assembly and subwoofer
main body, insert cushioning plates etc. into the space between the subwoofer main body and front panel assembly.
Front panel assembly
a
aa
a
3.6.2 Removing the woofer
(See Fig.2)
• Remove the front panel assembly.
(1) From the front side of the subwoofer main body, remove
the six screws A attaching the woofer.
(2) Take out the woofer from the subwoofer main body and
disconnect the wires from the terminal on the back side of
the woofer.
A
a
a
Fig.1
Woofer
A
Terminal
1-50 (No.MB368)
Wires
Fig.2
SECTION 4
ADJUSTMENT
4.1 Adjustment method
4.1.1 Measurement Instruments Required for Adjustment
(1) Low frequency oscillator
This oscillator should have a capacity to output 0dBs to
600Ω at an oscillation frequency of 50Hz-20kHz.
(2) Attenuator impedance : 600Ω
(3) Electronic voltmeter
(4) Distortion meter
(5) Frequency counter
(6) Wow & flutter meter
(7) Test tape
VT703 : Head azimuth
VT712 : Tape speed and running unevenness(3kHz)
VT724 : Reference level (1kHz)
(8) Blank tape
TYPE l: AC-225
TYPE ll: AC-514
(9) Torque gauge : For play and back tension
FWD(TW2111A), REV(TW2121a) and
FF/REW(TW2231A)
(10) Test disc: VT-501, CTS-1000
4.1.2 Measurement conditons
Power supply voltage:
AC110V / AC127V / AC220VAC230V ~ AC240V
(Adjustable with the voltage selector)50Hz / 60Hz
Reference output: Speaker : 0.775V/4Ω
Headphone : 0.077V/32Ω
Reference frequency and
input level:
Measurement output terminal: at Speaker J200
Load resistance: 4Ω
4.1.3 Radio Input signal
AM frequency: 400Hz
AM modulation: 30%
FM frequency: 400Hz
FM frequency deviation: 22.5kHz
1kHz, AUX : -8dBs
4.1.4 Tuner section
FM Band cover: 87.5 - 108.0MHz
AM Band cover: 531 - 1,710kHz (at 9kHz)
530 - 1,710kHz (at 10kHz)
Voltage applied to tuner: +B : DC5.7V
VT : DC 12V
Reference measurement
output:
Input positions: AM : Standard loop antenna
4.1.5 Standard measurement position of volume
Function switch to Tape
Beat cut switch to Cut
Super Bass/Active hyper Bass to OFF
Bass Treble to Center
Adjustment of main volume to reference output VOL : 28
Precautions for measurement
(1) Apply 30pF and 33kΩ to the IF sweeper output side and
0.082µ F and 100kΩ in series to the sweeper input side.
(2) The IF sweeper output level should be made as low as
possible within the adjustable range.
(3) Since the IF sweeper is a fixed device, there is no need
to adjust this sweeper.
(4) Since a ceramic oscillator is used, there is no need to
perform any MIX adjustment.
(5) Since a fixed coil is used, there is no need to adjust the
FM tracking.
(6) The input and output earth systems are separated. In
case of simultaneously measuring the voltage in both of
the input and output systems with an electronic voltmeter
for two channels, therefore, the earth should be connected particularly carefully.
(7) In the case of BTL connection amp., the minus terminal
of speaker is not for earthing. Therefore, be sure not to
connect any other earth terminal to this terminal. This
system is of an BTL system.
(8) For connecting a dummy resistor when measuring the
output, use the wire with a greater code size.
(9) Whenever any mixed tape is used, use the band pass fil-
ter (DV-12).
26.1mV(0.28V)/3Ω
FM : TP1 (hot) and TP2 (GND)
(No.MB368)1-51
4.2 Cassette mechanism adjustment
Head azimuth
adjustment screw
(Forward side)
Cassette switch board
Head azimuth
adjustment screw
(Reverse side)
Motor speed VR37
Head azimuth
adjustment screw
(Forward side)
Head azimuth
adjustment screw
(Reverse side)
CN48
PB head (A cassette)
Head azimuth
adjustment screw
(Forward side)
Head azimuth
adjustment screw
(Reverse side)
CN31
R/P head, Erase head (B cassette)
Head amplifier board
C308
R327
VR31
R313
Q302
R315
C316
C319
R314
C121
C221
L301
C314
SW1
R104
C313
Q305
PP300
D340
C310
R310
R121
R221
C107
L303
R102
R303
R335
R353
R108
C113
R304
Q343
R302
R339
C103
C301
C207
R110
Q342
C304
R208
C105
C205
R301
C106
SW2
R101
C104
R306
D1
R106
Q344
CN34
C306
R105
C102
R344
R205
Q345
R345
C307
R336
C340
R346
R107
R206
C206
W1
Q346
R305
C110
VR37
R210
C300
C341
R109
R372
Q372
C120
C371
CN33
R116
P1
IC32
C109
CN31
Q371
C101
R371
C374
C220
R376
R216
Q375
C376
C202
C201
C204
W1
R201
R204
C213
C342
D375
R207
Q376
R375
C209
IC1
R338
R337
FW100
CN32
R202
C203
CN1
SW6
R343
R342
R340
C331
C210
R347
Q347
SW5
R341
IC33
1-52 (No.MB368)
BIAS adjust VR31 (Only B cassette mechanism)
4.2.1 Mechanism section
Item Condition Measurement method Ref.value
Head
azimuth
Test tape
: VT703L (8kHz)
Output terminal
: Speaker out
1. Playback the test tape VT703L (8kHz).
2. Adjust to maximum output level by azimuth
adjustment screw for forward side and reverse
side.
Maximum
output
3. This adjustment is adjust by adjustment screw
of forward side and adjustment screw of
reverse side.
Tape speed
Test tap
: VT712 (3kHz)
Output terminal
Playback the test tape VT712 (3kHz) at end of
forward side, adjust to 2,940~3,90Hz indication
of frequency counter by VR37.
2,940 to
3,090Hz
: Speaker out or
Headphone out
Adjustment
position
Only adjust
at changed
head
VR37
Item Condition Measurement method Ref.value
Tape speed
deviation at
FWD/REV
Test tape
: VT712 (3kHz)
Output terminal
Playback the test tape VT712 (3kHz) at end
of forward and reverse, tape speed deviation
should be less than 6.0Hz.
Less than
6.0Hz
: Speaker out or
Headphone out
Wow & Flutter
Test tape
: VT712 (3kHz)
Output terminal
Playback the test tape VT712 (3kHz) at
start of forward and reverse, Wow & Flutter
are should be less than 0.25% (WRMS).
Less than
0.25%
(WRMS)
: Speaker out or
Headphone out
Adjustment
position
VR31
(No.MB368)1-53
4.2.2 Electrical adjustment
Item Condition Measurement method Ref.value
Recording
BIAS
adjustment
Forward or Reverse
Test tape
:AC-514 TYPE
:AC-225 TYPE
Output terminal
Recording head
1. Set the test tape(AC-514 TYPE and
AC-225 TYPE ), then make REC/PAUSE
condition.
2. Connect 100 to recording head by series,
then connect to VTVM for measurement
the current.
AC-225
:4.20uA
AC-514
:4.0uA
3. After setting, start the recording by release
the PAUSE, in this time bias current adjust
to next fig. by VR31 for Lch and VR32 for
Rch.
4.0uA (TYPE ) and 4.20uA (TYPE ).
R/P
playback
frequency
response
Reference frequency
: 1kHz / 10kHz
(Reference: -20dB)
Test tape
: AC-514 TYPE
Input terminal
playback
frequency
response
1. Set the test tape (AC-514 TYPE ), then
make REC/PAUSE condition.
2. Release the PAUSE, then start recording
the 1kHz and 10kHz of reference frequency
from oscillator.
3. Playback the recorded position, 1kHz and
10kHz output deviation should -1dB 2dB
to readjust by VR31 for Lch and VR32 for
Rch.
Output
deviation
1kHz/10kHz
:-1dB 2dB
Adjustment
position
VR31
VR31
4.2.3 Electrical response confirmation
Item Condition Measurement method Ref.value
Recording
bias
current
Forward or Reverse
Test tape
: TYPE (AC-514)
Measurement
terminal
: BIAS test point on
printed circuit board
Erase
current
(reference
value)
Forward or Reverse
Rec condition
Test tape
: AC-514 TYPE
: AC-225 TYPE
Measurement
terminal
: Both side of Erase
head
1. Change BIAS1 and 2, confirm the frequency
should be change.
2. Set the test tape (AC-514 TYPE ), then
make REC/PAUSE condition.
3. Confirm the frequency should 100Hz 6kHz
at BIAS test point on printed circuit board.
1. Set the test tape (AC-514 TYPE and
AC-225 TYPE ), then make REC/PAUSE
condition.
2. Release the PAUSE to REC condition,
connect 1W to ERASE head by series, then
confirm the erase current at both side of
erase head.
Adjustment
position
100 kHz
6 kHz
TYPE
: 120 mA
TYPE
: 75 mA
1-54 (No.MB368)
4.3 Service mode
4.3.1 Confirming contents
(1) Tuner AM switch to 9kHz-step
(2) Tuner AM switch to 10kHz-step
(3) Tray lock
(4) Cold start
(5) Clock fast forwarding
(6) Compulsion NTSC mode
(7) Fan ON/OFF setting
(8) Volume large step change
(9) Micon version display
(10) LCD all segment blinking
(11) Tuner version
(12) DVD test mode
(13) DVD initialize
(14) DVD region confirm mode
4.3.2 Confirming methods
1. Tuner AM switch to 9kHz-step
AM frequency change to 9kHz at U-version.
Press the [
STANDBY]
button on the
main unit and set the tuner in AM mode
Press the [
STANDBY]
button again on
the main unit to enter in standby mode
Press the [
STOP]
and [ ] buttons on
the main unit simultaneously
FL indication
" AM 9KHZ "
AM frequency is set to 9kHz-step.
2. Tuner AM switch to 10kHz-step
AM frequency change to 10kHz at U-version.
Press the [
STANDBY]
button on the
main unit and set the tuner in AM mode
at standby.
3. Tray lock
Loader-mecha is locked.
EJECT processing isn't done by pushing EJECT key
.
at tray lock on state.
Then display to LOCKED / UNLOCKED.
EJECT 1 is pushed , pushing STOP again , tray lock is off.
Back up to tray locked ON/OFF.
.
Press the [
STOP]
and [DISC 1 EJECT] buttons
on the main unit simultaneously
at standby.
FL indication
" LOCKED "
Press the [
again on the main unit simultaneously
STOP]
and [DISC 1 EJECT] buttons
at standby.
FL indication
" UNLOCKED "
Press the [
.
again on the main unit simultaneously
STOP]
and [DISC 1 EJECT] buttons
at standby.
Press the [
STANDBY]
button again on
the main unit to enter in standby mode
Press the [
the main unit simultaneously
STOP]
and [ ] buttons on
at standby.
FL indication
" AM 10KHZ "
AM frequency is set to 10kHz-step.
.
(No.MB368)1-55
4. Cold start
Cold start processing.
After cold start is activated, LCD 8 Segment temporary
display 'COLD' for 2 seconds. Then return to previous
display.
To activate cold start AC OFF system, then AC ON again.
Press the [
the remote controller simultaneously
STANDBY],
[ENTER] and [0] keys on
at standby.
FL indication
" COLD "
7. Fan ON/OFF setting
Toggle between FAN switch ON and OFF.
( FAN-CTL : L H TOGGLE )
This test mode is only effective during STANDBY MODE.
Test mode exit when system STANDBY P.ON
Press the [
on the main unit simultaneously
STOP]
and [DISC 2 EJECT] buttons
at standby.
This mode is completed.
Cold start is completed.
5. Clock fast forwarding
Fast Forward Clock (Increase clock counter speed)
Can only be activated after SYSTEM Clock is set.
To exit this TEST mode, AC OFF the system, then
AC ON again.
Press the [
remote controller simultaneously in power on state
STANDBY],
[ENTER] and [2] keys on the
.
This mode is completed.
6. Compulsion NTSC mode
Into the compulsive NTSC mode.
Hereafter , only first power-on , start by NTSC unrelated
version (Send command to module).
Mode is clear at AC OFF ON again.
Insert a power cord in an outlet while pressing
the [
STOP]
and [DISC 3 EJECT] buttons on the
main unit simultaneously
.
8. Volume large step change
VOLUME CHANGE
VOLUME STEP MAX(31)
VOLUME STEP CENTER(15) TOGGLE
Normal Operation TEST mode.
System returns to normal operation after performing
VOLUME CHANGE.
Press the [
remote controller simultaneously in power on state
STANDBY],
[ENTER] and [3] keys on the
.
FL indication
" VOLUME MAX "
Press the [
STANDBY],
[ENTER] and [3] buttons
again on the remote controller simultaneously.
FL indication
" VOLUME 15 "
Press the [
STANDBY],
[ENTER] and [3] keys
again on the remote controller simultaneously.
1-56 (No.MB368)
This mode is completed.
9. Micon version display
TEMPORARY DISPLAY FOR MICON VERSION (5SEC)
After 5 seconds, return to previous display.
Each key press will toggle temporary display for the
following:
SYSCON VERSION DVD LSI (BE) VERSION)
DVD MECHA VERSION
DVD LSI (BE & FE) VERSION CAN ONLY BEEN
DISPLAY DURING
SYSTEM POWER ON IN DVD MODE
(WHEN DVD LSI P.ON)
IF THERE IS NO INFORMATION FEEDBACK,
SYS-CON WILL DISPLAY
"WAIT" BLINKING 0.5SEC ON & OFF
Press the [
remote controller simultaneously in power on state
STANDBY],
[ENTER] and [SET] keys on the
.
11. Tuner version
Each Key pressed will display the current Sys-con
Tuner Version for 5 seconds and then changed back
to previous display.
U1 - 9KHz Display: " 0V USNE 9K "
U1 - 10KHz Display: " 0V USNE10K "
U2 - 9KHz Display: " 1V UW 9K "
U2 - 10KHz Display: " 1V UW 10K "
U3 - 9KHz Display: " 2V UX 9K "
U3 - 10KHz Display: " 2V UX 10K "
U4 - 9KHz Display: " 3V A 9K "
U5 - 9KHz Display: " 4V UY 9K "
U5 - 10KHz Display: " 4V UY 10K "
Press the [
STANDBY],
[ENTER] and [1] keys on the
remote controller simultaneously in power on state
.
FL indication
" xxxxxx-xxx "
Press the [
STANDBY],
[ENTER] and [SET] keys again on
the remote controller simultaneously in power on state
FL indication
" xx xxxx "
Press the [
STANDBY],
[ENTER] and [SET] keys again on
the remote controller simultaneously in power on state
FL indication
" xx xxxx "
Press the [
STANDBY],
[ENTER] and [SET] keys again on
the remote controller simultaneously in power on state
SYSCON VERSION
.
DVD LSI (BE) VERSION)
.
DVD MECHA VERSION
.
10. LCD all segment blinking
LCD ALL SEGMENT BLINKING (0.5sec:ON/0.5sec:OFF)
Each key press will toggle this TEST mode ON/OFF.
FL indication
" xx xxxx xx "
Example)
0V USNE 9K
This check is completed.
12. DVD test mode
Enters DVD-TEST mode.
DVD-TEST mode specification based on DVD-MODULE
specification. To exit DVD-TEST mode, AC OFF the system,
then AC ON again.
For Region Rewrite and DVD-AUDIO Device Key Writing,
refer to Region Rewrite and Device Key Writing section
below for exit procedure.
Insert a power cord in an outlet while pressing
the [
STOP]
and [DISC 5 EJECT] buttons on the
main unit simultaneously
.
This unit is set to DVD test mode.
The details refer to "4.3.3 DVD test mode".
13. DVD initialize
DVD module initialized.
Display will return to DVD Test Mode Area display
(" T xxy vw "). Press Power key to exit this TEST mode.
Press the [
STANDBY],
[ENTER] and [+10] keys on the
remote controller simultaneously in power on state
LCD all segment blinking.
.
Press the [
on the remote controller
PAUSE]
key
.
Wait for 10 seconds.
DVD initialize is completed.
(No.MB368)1-57
DVD test mode.
14. DVD region confirm mode
Into the DVD region confirm mode.
DVD REGION CHECK CAN ONLY BEEN DISPLAY
DURING
SYSTEM POWER ON IN DVD MODE
(WHEN DVD LSI P.ON)
Temporary display region code on LCD for 5 seconds.
IF THERE IS NO INFORMATION FEEDBACK,
SYS-CON WILL DISPLAY
"WAIT" BLINKING 0.5SEC ON & OFF
LCD WILL DISPLAY "AREAxxRy" WHERE "AREAxx"
is the DESTINATION INFO & R is the REGION INFO.
After 5 seconds, return to previous display.
4.3.3 DVD test mode
1. To enter DVD TEST mode,
(1) AC POWER ON while holding STOP+DVD5 EJECT/CLOSE keys.
(2) DVD Mecha will start in TEST MODE, LCD will display:
T xxy vw
2. To exit DVD TEST mode,
During TEST MODE (except for Device Key write & DVD Region Re-write), press POWER KEY and wait until
"POFF OK" is displayed for 5sec, then system goes into Standby Mode & Backlight LED is off.
This means that System now successfully exit the DVD Test Mode & back to normal mode.
To exit TEST mode for Device Key Write & DVD Region Re-write, first AC OFF, then AC ON again to return to
normal state.
Press the [
STOP]
and [EJECT 4] buttons on the
main unit simultaneously in power on state
FL indication
" x xxx xx "
This confirm is completed.
Initialization state from MECHA-CON
Study state information from MECHA-CON
Region number
Received DESTINATION information:
JC/1U/D/E/2U/3U/UB/UT/4U/UY/EE/UF
.
3. EEPROM INITIALIZATION
3.1 NORMAL INITIALIZE
(1) During DVD TEST MODE, press PAUSE key on the main unit to start NORMAL EEPROM INITIALIZATION.
(2) LCD will display:
3.2 FULL INITIALIZE
(1) During DVD TEST MODE, press >>| key on set 2 seconds control to start FULL EEPROM INITIALIZATION.
(2) LCD will display:
1-58 (No.MB368)
T xxy vw
Initialization state from MECHA-CON
T xxy vw
Initialization state from MECHA-CON
4. DVD check mode
DVD test mode
Press the [
MENU
] key on
the remote controller
FL indication
" CHECK "
Press the [1] key on
the remote controller
Press the [2] key on
the remote controller
Press the [3] key on
the remote controller
Press the [4] key on
the remote controller
Press the [5] key on
the remote controller
Press the [6] key on
the remote controller
Press the [7] key on
the remote controller
Press the [8] key on
the remote controller
.
START PLAYBACK
.
Perform SEARCH TNO+1
.
Perform SEARCH TNO-1
.
Light up CD_LD and
display laser current
.
Light up DVD_LD and
display laser current
.
Enter DVD x 2 JITTER
MEASUREMENT MODE
.
View EEPROM (MECHA)
content in -1 address step.
.
View EEPROM (MECHA)
content in +1 address step.
.
FL indication
" PLAYBACK "
FL indication FL indication
"WOBBLE"
(After 2 seconds)
"xxxxyyyy"
FL indication
"CHECK"
FL indication FL indication
"COLD LSR"
FL indication FL indication
"DVDLDLSR"
FL indication FL indication
"JITX1"
FL indication FL indication
"EEP BWD"
FL indication FL indication
"EEP FWD"
(After 2 seconds)
"xxxxyyyy"
(After 2 seconds)
"xxxxyyyy"
(After 2 seconds)
"xxxxyyyy"
(After 2 seconds)
"xxxxyyyy"
(After 2 seconds)
"xxxxyyyy"
Press the [9] key on
the remote controller
Press the [10] key on
the remote controller
A
View TEMP in main body.
.
Perform SEARCH DVD_DL
PARALLEL DISC DESIGNATED
POSITION and JITTER
MEASUREMENT
.
FL indication FL indication
"TEMP"
FL indication FL indication
"DVD-DL"
(After 2 seconds)
"xxxxyyyy"
(After 2 seconds)
"xxxxyyyy"
(No.MB368)1-59
A
Press the [0] key on
the remote controller
Press the [
+10
the remote controller
Press the [
PLAY
.
] key on
.
] key
on the remote controller
Press the [
STOP
] key
on the remote controller
Press the [
MENU
] key
on the remote controller
Return to starting screen
of DVD test mode.
Press the [
button on the main unit
STANDBY
]
.
Perform monitor output.
Initialize EEPROM (MECHA)
Start PLAYING and obtain
LASER CURRENT and
JITTER value.
.
Stop JITTER measurement.
.
.
FL indication FL indication
"MONITOR"
(After 2 seconds)
"xxxxyyyy"
FL indication
"INIT"
FL indication FL indication
"LSR JIT"
(After 2 seconds)
"xxxxyyyy"
FL indication
"XXXXXXX"
FL indication
"POFF OK"
DVD check mode is completed.
1-60 (No.MB368)
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
(No.MB368)1-61
Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MB368)
Printed in Japan
VPT
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