Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
Designs & specifications are subject to change without notice.
Type1-Way Bass-Reflex Type (Magnetically Shielded Type)
Speaker8 cm cone × 1
Power Handling Capacity140 W
Impedance4 Ω
Frequency Range90 Hz to 20 000 Hz
Sound Pressure Level80 dB/W•m
Dimensions (W × H × D)98.5 mm × 214.5 mm × 93.5 mm
Mass1.0 kg each
Type1-Way 2-Speaker Bass-Reflex Type (Magnetically Shielded Type)
Speaker8 cm cone × 2
Power Handling Capacity140 W
Impedance4 Ω
Frequency Range90 Hz to 20 000 Hz
Sound Pressure Level84 dB/W•m
Dimensions (W × H × D)435 mm × 99 mm × 93.5 mm
Mass2.0 kg
Type1-Way Bass-Reflex Type (Magnetically Shielded Type)
Speaker8 cm cone × 1
Power Handling Capacity140 W
Impedance4 Ω
Frequency Range90 Hz to 20 000 Hz
Sound Pressure Level76 dB/W•m
Dimensions (W × H × D)98.5 mm × 214.5 mm × 93.5 mm
Mass0.85 kg each
(No.MB618)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 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.
1-4 (No.MB618)
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 card wire is disconnected from the connecto on the servo board. (If the card 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 card wire.
Solder short land section
(No.MB618)1-5
1.8 Important for laser products
1.CLASS 1 LASER PRODUCT
2.CAUTION :
(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.
3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.
4.CAUTION : This laser product uses visible and/or 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 and PRINT
WARNING LABEL and PRINT
1-6 (No.MB618)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
SECTION 3
DISASSEMBLY
3.1 Main body
3.1.1 Removing the METAL COVER (See Fig.1, 2)
(1) Remove the four screws A attaching the METAL COVER.
(See Fig.1)
(2) Remove the one screw B attaching the METAL COVER by
use TORX driver. (See Fig.1)
TROX driver: size T 10
Parts number: DR-L70
(3) Remove the two screws C attaching the both side of MET-
AL COVER. (See Fig.2)
AAB
Fig.1
3.1.2 Removing the REAR PANEL (See Fig.3)
(1) Remove the power cord from POWER BOARD assembly.
(2) Remove the two screws D attaching the TUNER PACK and
then disconnect the card wire from connector CN205
MAIN BOARD assembly.
(3) Remove the three screws E attaching the AMP BOARD as-
sembly.
(4) Remove the one screw F attaching the POWER BOARD
assembly.
(5) Remove the one screw G attaching the HDMI BOARD as-
sembly.
(6) Remove the six screws H attaching the each I/O jack.
(7) Remove the one screw J attaching the REAR PANEL.
of the
C
Fig.2
EGFD
J
H
Fig.3
CN205
(No.MB618)1-7
3.1.3 Removing the AMP BOARD assembly (See Fig.4)
(1) Disconnect the connector wire from POWER BOARD as-
sembly connected to connector CN501
BOARD assembly.
(2) Remove the two screws K attaching the HEAT SINK
BRACKET.
(3) Remove the three screws L attaching the AMP BOARD as-
sembly.
(4) Disconnect the CONNECTION BOARD assembly con-
nected connector CN504
3.1.4 Removing the DVD MECHANISM assembly (See Fig.5)
(1) Disconnect the connector wire from MAIN BOARD assem-
bly connected to connector CN811
sembly.
(2) Disconnect the card wires from DVD BOARD assembly
connected to connector CN201
MAIN BOARD assembly.
(3) Disconnect the card wire from DVD MECHANISM assem-
bly connected to connector CN212
assembly.
(4) Remove the one screw M attaching the DVD MECHANISM
assembly.
of the AMP BOARD assembly.
of the DVD BOARD as-
, CN202 and CN204 of the
of the AMP
of the MAIN BOARD
KL
M
Fig.4
CN811
CN504CN501
CN202
1-8 (No.MB618)
CN212
CN201
Fig.5
CN204
3.1.5 Removing the FRONT PANEL assembly (See Fig.6 to 8)
(1) Disconnect the card wire from FRONT PANEL assembly
connected to connector CN211
sembly. (See Fig.6)
(2) Remove the one screw N attaching the EARTH WIRE from
FRONT PANEL assembly. (See Fig.6)
(3) Remove the one screw P attaching the EARTH WIRE from
USB BOARD assembly. (See Fig.6)
(4) Remove the three screws Q attaching the FRONT PANEL
assembly. (See Fig.7).
(5) Disengage hook a of bottom side and two hooks b of the
both side of FRONT PANEL assembly. (See Fig.7, 8)
of the MAIN BOARD as-
CN211
NP
Fig.6
Q
hook b
hook a
Fig.7
Fig.8
(No.MB618)1-9
3.1.6 Removing the iPod BOARD assembly (See Fig.9)
(1) Disconnect the card wire from iPod BOARD assembly con-
nected to connector CN210
bly.
of the MAIN BOARD assem-
CN210
Fig.9
1-10 (No.MB618)
3.1.7 Removing the POWER BOARD assembly (See Fig.10 to 12)
(1) Disconnect the connector wire from POWER BOARD as-
sembly connected to connector CN151
BOARD assembly. (See Fig.10)
(2) Disconnect the connector wires from POWER TRANS-
FORMER connected to connector CN102
the POWER BOARD assembly. (See Fig.11)
(3) Remove the one screw R attaching the POWER BOARD
assembly. (See Fig.11)
(4) Remove the two screws S attaching the POWER BOARD
assembly. (See Fig.12)
(5) Disconnect the connector wire from POWER TRANS-
FORMER connected to connector CN104
BOARD assembly. (See Fig.11)
of the MAIN
and CN103 of
of the POWER
CN151
Fig.10
CN104
CN103
R
Fig.11
CN102
S
Fig.12
(No.MB618)1-11
3.1.8 Removing the MAIN BOARD assembly (See Fig.13)
(1) Disconnect the connector wire from Fan connected to con-
nector CN152
(2) Remove the four screws T attaching the MAIN BOARD as-
sembly.
3.1.9 Removing the USB BOARD assembly (See Fig.14)
(1) Remove the two screws U attaching the USB BOARD as-
sembly.
of the MAIN BOARD assembly.
CN152
T
Fig.13
1-12 (No.MB618)
U
Fig.14
3.1.10 Removing the VFD BOARD assembly (See Fig.15, 16)
(1) Remove the two screws V attaching the BRACKET
BOARD. (See Fig.15)
(2) Remove the two screws W attaching the HEAD PHONE
BOARD assembly. (See Fig.15)
(3) Disconnect the card wire from TOUCH BOARD assembly
connected to connector CN601
bly. (See Fig.16)
(4) Remove the two screws X attaching the LED BOARD as-
sembly. (See Fig.16)
(5) Remove the ten screws Y attaching the VFD BOARD as-
sembly. (See Fig.16)
3.1.11 Removing the TOUCH BOARD assembly (See Fig.17)
(1) Remove the three screws Z attaching the TOUCH BOARD
assembly.
of the VFD BOARD assem-
VW
Fig.15
CN601
YX
Fig.16
Z
Fig.17
(No.MB618)1-13
3.2 DVD mechanism
3.2.1 Removing the traverse mechanism
(See Fig.1 to 6)
(1) Remove the two screws A attaching the tramecha holder
from top side of DVD mechanism assembly. (See Fig.1)
(2) Remove the two screws B attaching the DVD module
board. (See Fig.2)
(3) Remove the four screws C attaching the CB holder and
take out it. (See Fig.3)
(4) Remove the four screws D attaching the traverse mecha-
nism. (See Fig.4)
(5) Solder the solder part of DVD pick up. (See Fig.5)
(6) Disconnect the card wire from CN101
DVD module board. (See Fig. 6)
Caution:
• Solder the short land section on the DVD pickup before dis-
connecting the card wire from the connector on the DVD
pickup. If the card wire is disconnected without attaching solders, the pickup may be destroyed by static electricity.
• When attaching the DVD pickup, be sure to remove solders
from the short land section after connecting the card wire to
the connector on the DVD pickup.
and CN201 on the
A
Clamper base
B
A
DVD mechanism assembly
Fig.1
DVD mechanism assembly
B
1-14 (No.MB618)
DVD module board
Fig.2
DVD module board
DVD module board
CN101
CN201
C
C
CC
Fig.3
DVD mechanism assembly
Traverse mechanism assembly
Fig.6
DD
Fig.4
Solder short land section
Fig.5
(No.MB618)1-15
3.2.2 Removing the pickup assembly
(See Fig.7 to 11)
(1) Remove the two rod springs pressing the guide shaft. (See
Fig.7)
(2) Remove the screw E and F attaching the spring holder.
(See Fig.8)
(3) Remove the read screw from traverse mechanism assem-
bly. (See Fig.9)
Caution:
When remove the lead screw, do not loss the middle
gear. (See Fig.10 and 11)
(4) Remove the bar spring pressing the shaft. (See Fig.10)
(5) Take out the pickup assembly from traverse mechanism
chassis by order. (See Fig.11)
(SHAFT)
(T.TABLE)
HOOK
(BAR SPRING)
Fig.10
ROD SPRINGROD SPRING
Fig.7
Spring holder
Fig.8
order 2
order 3
order 1
Fig.11
EF
Middle gear
1-16 (No.MB618)
Lead screw
Fig.9
3.2.3 Removing the feed motor assembly
(See Fig.12)
(1) Remove the one screw G attaching the feed motor assem-
bly.
(2) Remove the feed motor wires from solder part of spindle
motor board.
Splder part
3.2.4 Removing the spindle motor assembly
(See Fig.13)
(1) Remove the three screws H attaching the spindle motor
from spindle motor board.
Middle gear
Lead screw
Fig.12
H
Spindle motor
Fig.13
G
(No.MB618)1-17
3.2.5 Removing the tray assembly
(See Fig.14 & 15)
(1) Remove the two screws J attaching the clamper base.
(See Fig.14)
(2) Remove the one screw K attaching the shaft guide from
bottom side. (See Fig.14)
(3) Remove the two screws L attaching the shaft guide from
top side. (See Fig.15)
Caution:
When attach the tray assembly, boss of loading sub assembly
should attach to guide of bottom side at tray assembly. (See
Fig.15)
J
order 1
order 2
clamper base
L
K
Fig.15
[bottom side]
Fig.14
1-18 (No.MB618)
SECTION 4
ADJUSTMENT
4.1 ATTENTION IN SERVICE OF DVD SECTION
(1) When pickup, Flash ROM ,DVD module board were changed, initialize EEPROM by all means.
(2) When full initialization was executed, execute learning with a DVD test disc by all means.
Test disc : VT-501, VT-502
Learning method : It is adjusted automatically by normal playback of a DVD disc.
4.2 DVD TEST MODE
4.2.1 Content of correspondence TEST MODE
(1) Version, Region, Learning status check mode
(2) NORMAL initialize, FULL initialize
(3) Device key write(CPPM, CPRM)
(4) Device key checksum indication mode
(5) Micon version indication mode
(6) FL all on mode
(7) FRONT END check mode
4.2.2 Mode transition
TEST MODE into the press [SOURC key] and [POWER key] together of main body, connect the AC power.
After into the TEST MODE, mode select by [MENU key].
SOURCE+POWER+AC
Version, Region, Learning
status indication mode
F.SKIP key 4sec
FULL
initialize
long press
SOURCE keyB.SKIP
NORMAL
initialize
MENU key
Device key
write
MENU key
MENU keyMENU keyMENU key
Device key
checksum
mode
Micon version
indication mode
MENU key
FL all on
mode
FRONT END
check mode
4.2.3 Processing details
The communication of operated FL(LCD) display and DVD back end microcomputer is shown as follows.
*It is assumed to be OK to differ from the content of the specification because the number of digits is different according to the set for
the FL(LCD) display.
*It is assumed to be OK to differ from the content of the specification because it also has the relation between arrangement and presence by the set also for the key.
STEPOperationMovementRemarks
1
AC is pulled out, and
double press [SOURCE]
and [POWER] key of the
main body
2Keep step 1, connect AC
Version, Region, Learning
status indication mode
Power on by test mode,
version indication to FL
FL(LCD)indication
132465798
T
JC#
10121113
Version indication
The display to the version code is as
follows.
0x01:JC 0x02:1U 0x03:D 0x04:E
0x05:2U 0x06:3U 0x07:UB 0x08:UT
0x09:4U 0x0a:UY 0x0b:EE 0x0c:UF
Region indication (# part)
Learning from the back end is displayed
in the 11th digit and the 12th digit
of the FL display.
Blank indication at 0xFF
Study status (11th column)
0x07: BCA CHECK OK incomplete
DVD learning incomplete
CD learning incomplete (indication 7)
0x06: BCA CHECK OK incomplete
DVD learning complete
CD learning incomplete (indication 6)
0x05: BCA CHECK OK incomplete
DVD learning incomplete
CD learning complete (indication 5)
(No.MB618)1-19
STEPOperationMovementRemarks
132465798
FL(LCD)indication
10121113
0x04: BCA CHECK OK incomplete
DVD learning complete
CD leaning complete (indication 4)
0x03: BCA CHECK OK complete
DVD learning incomplete
CD learning incomplete (indication 3)
0x02: BCA CHECK OK complete
DVD learning complete
CD learning incomplete (indication 2)
0x01: BCA CHECK OK complete
DVD learning incomplete
CD learning complete (indication 1)
0x00: BCA CHECK OK complete
DVD learning complete
CD learning complete (indication 0)
(BCA READ CHECK result is only BCA
READ OK, it to complete)
Initialization status (12th column)
0X03: FULL initialize complete
(indication 3)
0x00: NORMAL initialize complete
(indication 0)
0xFF: Initialize incomplete
(blank indication)
Press a [SOURCE] key
of the main body.
NORMAL initialize
Continue pressing a
[F.SKIP] key of the main
body.(4sec)
FULL initialize
3
Press a [MENU] key of
the remote controller.
Press a [MENU] key of
the remote controller.
4Press a [MENU] key of
the remote controller.
5FL all on mode
Press a [MENU] key of
the remote controller.
6
Press a [MENU] key of
the remote controller.
Press a [1] key of the 10
key on remote controller
Press a [2] key of the 10
key on remote controller
Press a [3] key of the 10
key on remote controller
DEVICE CHECKSUM
indication mode
Indicate the CHECKSUM
of the Device key to FL
(4 byte)
Micon version indication
mode
Indicate the version to FL
All FL and all LED to ON
FRONT END check mode
Indicate the front end check
mode to FL
Disc startup and through
playback
(Playback starts from the
start position)
Presence of WOBBLE
0:WOBBLE_NO_CHECK
(un check)
1:WOBBLE_PRESS_MEDIA
(press)
2:WOBBLE_MINUS_MEDIA
(DVD-R/-RW media)
3:WOBBLE_PLUS_MEDIA
(DVD+R/+RW media)
Port check mode
(TRACK,INDEX,DEMP,
COPY)
1:INDEX Port = High
2:TRACK Port = High
3:COPY Port = High
4:DEMP Port = High
JC#T
JC#
T
bbcccac
CEHCK
CEHCK
The AVC protocol is returned from
high speed to normal speed.
(Return it to the normal mode when
coming off the TEST mode. )
Indicate CHECKSUM to FL
,,,
,,,
bb : Syscon Version
a : Syscon Romcorr Version
cccc: DVD Back end Version
Upper : 0
Lower : WOBBLE detection result
Upper : 0x01-0x04(check port number)
Lower : 0
,,,
: CPPM
: CPRM
: HDCP
1-20 (No.MB618)
STEPOperationMovementRemarks
Press a [4] key of the 10
key on remote controller
Press a [5] key of the 10
key on remote controller
Press a [6] key of the 10
key on remote controller
Press a [8] key of the 10
key on remote controller
Press a [9] key of the 10
key on remote controller
Press a [10] key of the 10
key on remote controller
Press a [0] key of the 10
key on remote controller
Press a [ 10] key of the
10key on remote controller
Press a [STOP] key of
the main body or remote
controller
Press a [OPEN/CLOSE]
key of the main body or
remote controller
Press a [PLAY] key of
the main body or remote
controller
Press a [MENU] key of
7
the remote controller
Press a [POWER] key of
the main body
*1 Mode toggle done by press [MENU] key.
*2 STEP3 are only for DVD-AUDIO or VR correspondence model.
CD_LD lights and laser
current is displayed
DVD_LD lights and laser
current is displayed
DVD_SL x1 jitter
measurement mode
Content of BACKUP
memory(0x00-0x63)
indication (FWD)
Temperature sensor
(AD value) indication
DVD-DL(parallel,opposite)
Search & jitter
measurement of the
specified position of
DVD-SL