Sony MV-900SDS - Dream System 3 User manual

SERVICE MANUAL
MOBILE DVD SYSTEM
US Model
MV-900SDS
Ver. 1.4 2006.08
9-877-871-05
2006H05-1
© 2006.08
Sony Corporation
eVehicle Division
Published by SonyTechno Create Corporation
SPECIFICATIONS
Copyrights
This product incorporates copyright protection
technology that is protected by method claims
of certain U.S. patents, other intellectual
property rights owned by Macrovision
Corporation, and other rights owners. Use of
this copyright protection technology must be
authorized by Macrovision Corporation, and is
intended for home and other limited viewing
uses only unless otherwise authorized by
Macrovision Corporation. Reverse engineering
or disassembly is prohibited.
•“Memory Stick,” and “MagicGate
Memory Stick” are trademarks of Sony
Corporation.
•“Memory Stick Duo” and “ ”
are trademarks of Sony Corporation.
•“MagicGate” and “ ” are
trademarks of Sony Corporation.
•“Memory Stick PRO” and “ ”
are trademarks of Sony Corporation.
Manufactured under license from Dolby
Laboratories. “Dolby”, “Pro Logic”, and the
double-D symbol are trademarks of Dolby
Laboratories.
“DTS,” “DTS Digital Surround” and “DTS
Digital Out” are trademarks of Digital Theater
Systems, Inc.
DVD player XVM-R90D
System
Laser Semiconductor laser
Signal format system NTSC/PAL
Audio characteristics
Frequency response 20 Hz to 20 kHz
Signal to noise ratio 90 dB (A)
Harmonic distortion 0.05 %
Dynamic range 90 dB
Wow and flutter below measurable limits
(±0.001% W PEAK)
General
Outputs FM output
Audio output
Video output
Optical output
Inputs Audio input
Video input
DC 12V input
Power requirements 12 V DC
Dimensions Approx. 285 ×73 ×455 mm
(11 1/4×2 7/8×18 in)
(w/h/d)
Mass Approx. 3.5 kg
(7 lb 12 oz)
Operating temperature 0 °C to 45 °C
(32 °F to 113 °F)
Supplied accessories Card remote commander
RM-X137
Power supply cord (1)
RF modulator cable (1)
Mounting plate (1)
Screws (5)
Tapping screws (8)
Operating Instructions (1)
Monitor
System Liquid crystal color display
Display Manual flipdown panel
Drive system TFT-LCD active matrix
system
Picture size 9 inches wide screen (16:9)
Picture segment 336,960 (w 1,440 ×h 234)
dots
Cordless Stereo Headphones
MDR-IF0140
General
Modulation system Frequency modulation
Carrier frequency Right 2.8 MHz
Left 2.3 MHz
Frequency response 18 −22,000 Hz
Power source DC 1.5 V (size AAA) dry
battery
Mass Approx. 125 g (4.41 oz)
including battery
Operating temperature 5 °C to 35 °C
(41 °F to 95 °F)
Design and specifications are subject to change
without notice.
MODEL NUMBER LABEL PRINTED MODEL NAME
DVD PLAYER MV-900SDS XVM-R90D
CORDLESS STEREO HEADPHONES MDR-IF0140 MDR-IF0140
MV-01HP MV-01HP
CARD REMOTE COMMANDER – RM-X137
COMPONENT MODEL NAME
Note: There are two types of Cordless Stereo Headphones.For further information, see “NOTE WHEN
REPLACINGTHE CORDLESS STEREO HEADPHONES” (page 3) of the Servicing Notes.

MV-900SDS
2
TABLE OF CONTENTS
1. SERVICING NOTES ................................................ 3
2. GENERAL
Location of Controls........................................................ 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 9
3-2. Bracket (Main) ................................................................ 9
3-3. DVD Mechanism Deck Block......................................... 10
3-4. MAIN Board.................................................................... 10
3-5. Rear Cover (Hinge) ......................................................... 11
3-6. LCD Block ...................................................................... 11
3-7. LCD Board ...................................................................... 12
3-8. Liquid Crystal Display Panel (LCD1) ............................. 12
4. TEST MODE.............................................................. 13
5. ELECTRICAL ADJUSTMENTS ......................... 14
6. DIAGRAMS
6-1. Block Diagram – MPEG DECODER Section – ............ 19
6-2. Block Diagram – AUDIO Section – ............................... 20
6-3. Block Diagram – VIDEO, PANEL Section –................. 21
6-4. Block Diagram – POWER SUPPLY Section – .............. 22
6-5. Printed Wiring Board
– MAIN Board (Component Side) – ............................... 24
6-6. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................. 25
6-7. Schematic Diagram – MAIN Board (1/4) – ................... 26
6-8. Schematic Diagram – MAIN Board (2/4) – ................... 27
6-9. Schematic Diagram – MAIN Board (3/4) – ................... 28
6-10. Schematic Diagram – MAIN Board (4/4) – ................... 29
6-11. Printed Wiring Board – LCD Board (Side A) – ............. 30
6-12. Printed Wiring Board – LCD Board (Side B) – ............. 31
6-13. Schematic Diagram – LCD Board (1/4) –...................... 32
6-14. Schematic Diagram – LCD Board (2/4) –...................... 33
6-15. Schematic Diagram – LCD Board (3/4) –...................... 34
6-16. Schematic Diagram – LCD Board (4/4) –...................... 35
6-17. Printed Wiring Board – PANEL Section (1/2) – ............ 36
6-18. Printed Wiring Boards – PANEL Section (2/2) – ........... 37
6-19. Schematic Diagram – PANEL Section – ........................ 38
7. EXPLODED VIEWS
7-1. Skirt (Cabinet) Section .................................................... 54
7-2. Front (Panel) Section ....................................................... 55
7-3. MAIN Board Section....................................................... 56
7-4. Cabinet (Base) Section .................................................... 57
7-5. LCD Section .................................................................... 58
8. ELECTRICAL PARTS LIST................................ 59
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 ˚C
during repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
otherthan those specifiedhereinmayresult inhazardous radiation
exposure.
CAUTION
The use of optical instruments with this
product will increase eye hazard.
DANGER INVISIBLE LASERRADIATIONWHEN OPEN.
AVOID DIRECT EXPOSURE TO BEAM.
This is located on the drive unit's internal
chassis.

3
MV-900SDS
SECTION 1
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
Never look into the laser diode emission from right above when
checking it for adjustment. It is feared that you will lose your sight.
NOTE WHEN REPAIRING OR REPLACING THE
CORDLESS STEREO HEADPHONES
The Cordless Stereo Headphones attached to this set have been
changed in the midway of production.
Repair or replace the Cordless Stereo Headphones after making sure
which type they are by referring to the following figure.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40 ˚C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 ˚C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
OPEN
ON
OFF
POWER
VOL
ON
OFF
VOL
MDR-IF0140 MV-01HP
Ver. 1.4

4
MV-900SDS
About discs this player can
play
This player can play the following discs:
•DVD
•DVD-R/DVD-RW
•Video CD
•Audio CD
•CD-R/CD-RW
Disc type Label on the disc
“DVD VIDEO,” “DVD-R” and “DVD-RW” are
trademarks.
DVD VIDEOs
Video CDs
Audio CDs
MP3 files/
JPEG files
Notes on CD-Rs (recordable CDs)/
CD-RWs (rewritable CDs)/DVD-Rs
(recordable DVDs)/DVD-RWs
(rewritable DVDs)
•Some CD-Rs/CD-RWs/DVD-Rs/DVD-RWs
(depending on the equipment used for its
recording or the condition of the disc) may
not play on this player.
• You cannot play a CD-R/CD-RW/DVD-R/
DVD-RW that is not finalized*.
• You cannot play a CD-R/CD-RW that is
recorded in Multi Session.
• You can play MP3/JPEG files recorded on
CD-ROMs, CD-Rs, and CD-RWs.
*A process necessary for a recorded CD-R/CD-RW
disc to be played on the audio CD player.
Region code of DVDs this player
can play
This player has a region code printed on the
rear of the player and will only play DVDs that
are labeled with identical region codes. DVDs
labeled
ALL
will also be played on this player.
If you try to play any other DVD, the message
“REGION ERROR” will appear on the screen.
Depending on the DVD, the region code
indication may not appear even if the DVD is
prohibited by area restrictions.
Region
code
Cautions
•This player CANNOT play these discs.
— DVD-Audio — DVD-RAM
— DVD-ROM — CD-G
— SVCD — CD-I
— Photo-CD — VSD
— Active-Audio (Data)
— CD-Extra (Data)
— Mixed CD (Data)
— CD-ROM (the data other than the MP3/JPEG
file)
— DVD-RW recorded in VR mode
•This product incorporates copyright protection
technology that is protected by method claims of
certain U.S. patents and other intellectual
property rights owned by Macrovision
Corporation and other rights owners. Use of this
copyright protection technology must be
authorized by Macrovision Corporation, and is
intended for home and other limited viewing
uses only unless otherwise authorized by
Macrovision Corporation. Reverse engineering or
disassembly is prohibited.
Note on PBC (Playback Control)
This player conforms to Ver. 1.1 and Ver. 2.0 of
Video CD standards. You can enjoy two kinds
of playback according to the disc type.
Disc type
Video CDs without
PBC functions
(Ver. 1.1 discs)
Video CDs with
PBC functions
(Ver. 2.0 discs)
You can
Video playback (moving
pictures) as well as music.
•Interactive software
with menu screens
displayed on the
monitor.
•Video playback
functions.
•High-resolution still
pictures if they are
included on the disc.

5
MV-900SDS
SECTION 2
GENERAL This section is extracted from
instruction manual.
9
0
qa
qs
qd
qf
qg
qh
1
2
3
4
5
6
7
8
Refer to the pages listed for details.
1Disc slot
2POWER (on/off) button
To turn on/off the player.
3DISC IN light
When a disc is in the player, the DISC IN
light glows orange.
4RESET button
5.(previous)/>(next) buttons
6Receptor for the card remote
commander/Transmitter for the cordless
headphones
7Monitor
8VOL +/– buttons
To turn up or down the volume or to select
the item during menu operation.
9EJECT button
Available to eject a disc from the player
even when the player is turned off.
q; “Memory Stick” slot
qa x (stop) button
qs u (play/pause) button
qd OPEN button
Slide to open the monitor.
qf Speakers (left/right)
qg REVERSE button
To switch images upside down and
reverse the output of the audio channels.
qh MENU button
To make various display settings and FM
transmitter setting.
Note
Even when the player is turned off by pressing
(POWER), you can eject a disc from the player,
though you cannot insert a disc.
Location of controls
XVM-R90D

6
MV-900SDS
ENTER
SEARCH
POWER DISPLAY
CLEAR
SETUP
AUDIO
ANGLE
SUBTITLE
MENU
TOP MENU
INPUT
123
456
7890
VOL
Refer to the pages listed for details.
1DISPLAY button
To display the time information of the disc.
2Number buttons (0 to 9)
3TOP MENU button
To display the top menu of a recorded
DVD.
4MENU button
To display the recorded DVD menu, or to
turn on/off the PBC (Playback control)
menu of a Video CD.
5O(return) button
6./>(previous/next) buttons
7m (fast reverse)/
M(fast forward) buttons
8M/,/m/<buttons
9POWER (on/off) button
To turn on/off the player.
q; SEARCH button
To specify a desired point on a disc by
chapter, title, or track.
qa CLEAR button
qs SUBTITLE button
To change the subtitle language while
playing a DVD.
qd ENTER button
To enter a setting.
qf ANGLE button
To select the multiple angles of view while
playing a DVD.
qg AUDIO button
To change the audio output/audio
language.
qh (slow reverse)/y(slow forward)
buttons
qj u (play/pause) button
qk x (stop) button
ql SETUP button
Used to perform menu operations.
w; INPUT button
To select the input source.
wa VOL (–/+) buttons
To turn up or down the volume.
The corresponding buttons of the card
remote commander control the same
functions as those on the player.
Instructions in this manual describe how to use
the player by mainly using the card remote
commander.
Tip
Refer to “Replacing the lithium battery” for details
on how to replace the battery.
Card remote commander RM-X137

7
MV-900SDS
Cordless Stereo Headphones MDR-IF0140
1Battery compartment lid
To set a battery, open the lid.
2Ear pad
The ear pads are replaceable.
3Power (ON/OFF) switch
4POWER indicator
When the power switch of the headphones
is set to ON, the POWER indicator lights
up in red.
5VOL control dial
To adjust the volume level from 0 to 10.
OPEN
ON
OFF
POWER
VOL
Battery life
Size AAA dry battery (1) is supplied with the
headphones.
Battery Approx. hours*1
Sony alkaline battery 60 hours*2
LR03/AM-4 (N)
Sony manganese battery 28 hours*2
R03/UM-4 (NU)
*1at 1 kHz, 1 mW+1 mW output
*2Time stated above may vary, depending on the
temperature or conditions of use.
Tip
Refer to “Replacing the battery” for details on
how to replace the battery.
Ver. 1.4
Cordless Stereo Headphones MV-01HP
1Battery compartment lid
To set a battery, open the lid.
2Power (ON/OFF) switch
3Ear pad
4VOL control dial
To adjust the volume level from 0 to 10.
5POWER indicator
When the power switch of the headphones
is set to ON, the POWER indicator lights
up in red.
ON
OFF
VOL
Battery life
Size AAA dry battery (2) is supplied with the
headphones.
Battery Approx. hours*1
Sony alkaline battery 60 hours*
2
LR03/AM-4 (N)
Sony manganese battery 28 hours*
2
R03/UM-4 (NU)
*
1
at 1 kHz, 1 mW+1 mW output
*
2
Time stated above may vary, depending on the
temperature or conditions of use.
Tip
Refer to “Replacing the battery” for details on
how to replace the battery.
Note: There are two types of Cordless Stereo Headphones. For further information, see “NOTE
WHEN REPLACINGTHE CORDLESS STEREO HEADPHONES”(page 3) of the Servicing
Notes.

8
MV-900SDS
Where to install
Before installing this unit, please check your local traffic rules and regulations. Follow the diagram
below to install this unit in a suitable position in your car.
Do not install this unit where:
— It will obstruct the driver’s view when the
monitor is in either the open or closed
position.
— It will obstruct the operation of the airbag
system.
— It will obstruct the operation of the
vehicle, especially the steering wheel, shift
lever, or brake pedal.
—Adriver or passengers may injure
themselves when getting into or out of the
car.
If you have any questions or problems
concerning your unit that are not covered
in this manual, please consult your
nearest Sony dealer.
Before installing
Make sure that the POWER SELECT switch is
set to the correct position.
A*: If your car has an accessory position on
the ignition key.
B: If your car has no accessory position on
the ignition key.
*Ais the factory preset position.
When the POWER SELECT switch is
set to B
Press (POWER) on the player to turn on.
The player does not turn on by pressing
(POWER) on the card remote commander.
Note
Be sure to turn off the player after driving your
car.
To turn off the player, follow the operations
below:
–Press (POWER) on the player.
–Press (POWER) on the card remote commander.
If the power is left on, it will cause battery drain.
B
A
POWER SELECT
switch
Connections
Installation diagram
Refer to the installation diagram and ask a qualified technician for the installation of the unit.
DVD player
XVM-R90D
Front Left
speaker
Rear Left
speaker
Subwoofer
Tweeter Left
Head unit
Front Right
speaker
Rear Right
speaker
Cordless Stereo
Headphones
MDR-IF0140
Be sure to securely fasten all equipment to
the car chassis, etc., to prevent them
moving while your car is in motion.
Note
All equipment other than one DVD player and two
cordless stereo headphones is optional.
Notes on the locations for PS one™
Do not set PS one™:
— on a dashboard, or in a place subject to direct
sunlight.
— in a place near magnetic source such as
magnets, speakers and a TV/Monitor.
— on an unstable or uneven surface.
— in a place subject to excessive vibration.
— in a place subject to excessive dust or dirt.
— in poorly ventilated or humid place.
— in a place to subject to temperature extremes
(below 5˚C (41˚F) or above 35˚C (95˚F)).
Refer to the operating instructions supplied to PS
one™.
“PS one” is a trademark of Sony Computer
Entertainment Inc.
Tweeter Right
Connection diagram
Refer to the connection diagram for the proper connections.
Note
Set the POWER SELECT switch before installing (page 6).
Optical cable
(optional)
AUDIO/VIDEO OUTPUT
Connection box
(optional)
From the car antenna
RCA pin cord (optional)
Car audio
(optional)
Antenna connector*1
Speaker system
(optional)
*1An adapter (optional) may be necessary for your
car and car audio system. In such a case, consult
your dealer.
*2If your car has no ACC (accessory) position on
the ignition key switch, set the POWER SELECT
switch to B(page 6) and connect this ACC cable
to the +12 V power (battery) terminal.
Monitor cable (optional)
Monitor (optional)
Relay box
5 m
Amplifier equipped
with a digital input
(optional)
0.5 m
GND (1 m)
Back-up (5 m)
To a metal surface
of the car chassis
To car battery
(12 V)
To ignition switch*2
(ACC position)
4 Pin Power connector
PS one™ (optional)
ACC (5 m)
Fuse (5 A)
Fuse (1 A)
Red
Yellow
Black
Precautions on PS one™
•Be sure to fasten PS one™ in a safe place
securely.
•For your safety, do not use PS one™ while
driving your car.
•Make sure that the operating voltage of PS
one™ is 7.5 V. Other voltages may cause
malfunction, or damage PS one™.
Refer to the operating instructions supplied to
PS one™.
“PS one” is a trademark of Sony Computer
Entertainment Inc.
GND (1 m)
POWER REM (5 m)
Blue
Max. supply current 0.3 A To a power
amplifier
Black
Filter box
AV Cable
(integrated audio/video)
(optional)
AUDIO/VIDEO INPUT

MV-900SDS
9
•This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
3-2. BRACKET (MAIN)
(Page 9)
3-3. DVD MECHANISM
DECK BLOCK
(Page 10)
3-4. MAIN BOARD
(Page 10)
3-5. REAR COVER (HINGE)
(Page 11)
3-6. LCD BLOCK
(Page 11)
3-7. LCD BOARD
(Page 12)
3-8. LIQUID CRYSTAL
DISPLAY PANEL
(LCD1)
(Page 12)
SET
SECTION 3
DISASSEMBLY
4 six screws
(BTP2.6
× 8)
2 two screws
(BTP2.6
× 8)
1 four screws
(B2.6
× 4)
5 bracket (main
)
3 bracket (support)
Note: Follow the disassembly procedure in the numerical order given.
3-2. BRACKET (MAIN)

MV-900SDS
10
3-4. MAIN BOARD
3 screw
(BTP2.6
× 8)
4 harness
2 connector (CN108)
2 connector (CN105)
2 connector (CN107)
2 connector (CN302)
2 connector (CN103)
2 connector (CN104)
2 connector (CN701)
2 connector (CN705)
1 flexible flat cable
(50P) (CN101)
1 flexible flat cable
(30P) (CN102)
5 MAIN board
2 connector (CN702)
3 three screws
(BTP2.6
× 8)
2 two screws
(BTP2.6
× 6)
4 bracket (front)
3 two screws
(BTP2.6
× 8)
1 flexible flat cable
(50P) (CN101)
5 two screws
(BTP2.6
× 8)
6 DVD mechanism
deck block
3-3. DVD MECHANISM DECK BLOCK

MV-900SDS
11
3-5. REAR COVER (HINGE)
3-6. LCD BLOCK
4 rear cover
(hinge)
1 Slide the knob (open) in the direction
of arrow A , and open the LCD block
in the direction of arrow B .
A
LCD block
B
3
two claws
2 two screws
(P2 × 8)
rear cover
(hinge)
3 front cover (hinge)
5 Lifting up the LCD block in
the direction of arrow
A .
2 two connectors
(CN105, 108)
1
A
2 connector
(CN107)
2 connector
(CN103)
4 two screws
(PS3
× 10)
4 two screws
(PS3
× 10)

MV-900SDS
12
3-7. LCD BOARD
3-8. LIQUID CRYSTAL DISPLAY PANEL (LCD1)
5 eight screws
(BTP2 × 6)
6 screw
(PS2.6 × 6)
4 two connectors
(CN906, 907)
1 four screws
(B2 × 5)
2 rear case (LCD
)
4 two connectors
(CN905, 908)
7 LCD board
3 flexible board
(CN801)
4 connector
(CN850)
1 two screws
(BTP2 × 6)
4 two screws
(BTP2 × 6)
5 two retainers
(LCD)
2 two retainers (LCD)
6 liquid crystal display panel
(LCD1)
front case (LCD) block
3 shield plate
(LCD)

13
MV-900SDS
SECTION 4
TEST MODE
Note: This set is able to setting the adjustment data, reset to factory default
and initialize the EEPROM (IC402 on the MONITOR board) in the
test mode.
ENTER THE TEST MODE
Procedure:
1. Press the [POWER] button to turn the power ON.
2. While pressing the [VOL --] and .buttons, press the
[RESET] button.
3. The set is enter the test mode and display as bellow figure.
Note: Ifinitial data isnot written to theEEPROM(IC402onthe MONITOR
board) or data is clobbered, the set is not able to display normally
screen.
BATCH WRITING OF THE INITIAL DATA TO
EEPROM
In the test mode, by pressing the [VOL --] button at two seconds,
batch writing is possible of the initial data to EEPOM (IC402 on
the MONITOR board).
OPERATION OF THE TEST MODE
All operations are performed using the bellow buttons.
RELEASING THE TEST MODE
In the test mode menu screen, press the [MENU] button to select “8.
SOFT RESET (EXIT)”, and press the [REVERSE] button to release
the test mode.
OPERATING THE EACH ITEM
1. NTSC/PAL SELECT
In this mode, switch the signal format system to NTSC or PAL.
2. FOR FACTORY
In this mode, change the data of adjustment data.
Enter this mode, it displays each adjustment item as follow.
1) Com Gain
2) Y Gain
3) Black Limit
4) White Limit
5) R-Sub BRT
6) B-Sub BRT
7) R-Sub CONT
8) B-Sub CONT
9) Gamma 1
10) Gamma 2
11) VCO Free Run
12) PLL/V Pos
13) H Pos
3. LCD SETTING
This mode is not used in servicing.
4. FMTRANSMITTER
In this mode, switch the frequency range of FM transmitter as
follow.
1) USA (88.3 to 89.9 MHz)
2) Japan (76.5 to 79.5 MHz)
3) Transmitter off
5. HEAT PROTECTION
This mode is not used in servicing.
6. VOLTAGE SETUP
This mode is not used in servicing.
7. LOAD DEFAULT
This mode is not used in servicing.
8. SOFT RESET (EXIT)
Releasing the test mode.
Display
TEST MODE MENU
1. NTSC/PAL SELECT
2. FOR FACTORY
3. LCD SETTING
4. FM TRANSMITTER
5. HEAT PROTECTION
6. VOLTAGE SETUP
7. LOAD DEFAULT
8. SOFT RESET(EXIT)
Dream System 20XX
Ver.20XX-XX-XXx
Button Function
MENU Select the item
REVERSE Enter
VOL + Up the data value
VOL −Down the data value

14
MV-900SDS
1. DC/DC CONVERTER ADJUSTMENT
1-1. Frequency Adjustment
Setting:
Procedure:
1. Connect an oscilloscope or frequency counter to the TP802
and TP804 on the MONITOR board.
2. Check that the voltage between TP951 (−) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
3. Adjust the RV801 on the MONITOR board so that the value
of oscilloscope or frequency counter becomes 243 kHz ±3
kHz.
1-2. 5V Voltage Adjustment
Setting:
Procedure:
1. Connect a digital voltmeter to the TP804 and TP807 on the
MONITOR board.
2. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
3. Adjust the RV803 on the MONITOR board so that the value
of digital voltmeter becomes 5.05V ±0.03 V.
1-3. Other Voltages Check
Setting:
Procedure:
– Vdd Voltage Check –
1. Connect a digital voltmeter to the TP804 and TP808 on the
MONITOR board.
2. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
3. Check that the value of digital voltmeter is 3.45 V ±0.2 V.
– Vgh Voltage Check –
4. Connect the digital voltmeter to the TP804 and TP806 on the
MONITOR board.
5. Check that the value of digital voltmeter is 17.5 V ±1.5 V.
– Vss Voltage Check –
6. Connect the digital voltmeter to the TP804 and TP805 on the
MONITOR board.
7. Check that the value of digital voltmeter is –12.0 V ±1.5 V.
2. PLL ADJUSTMENT
Setting:
Procedure:
1. Connect a digital voltmeter to the TP601 and TP602 on the
MONITOR board.
2. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
3. Adjust the RV601 on the MONITOR board so that the value
of digital voltmeter becomes 2.4V ±0.15 V.
3. INVERTER HIGH VOLTAGE CHECK
Setting:
Procedure:
– High Voltage Check –
1. Connect a digital voltmeter (for withstand high voltage) to the
TP853 and TP854 on the MONITOR board.
2. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
(DIMMER: off)
3. Check that the value of digital voltmeter is 550 V ±150 V
(rms).
– Frequency Check –
4. Connect an oscilloscope (use a probe for withstand high
voltage) to the TP853 and TP854 on the MONITOR board.
5. Check that the frequency of oscilloscope is 66 kHz ±2.5 kHz.
4. OSD DOT CLOCK CHECK
Setting:
Procedure:
1. Connect a frequency counter (high impedance) to the TP403
and TP405 on the MONITOR board.
2. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
3. Check that the value of frequency counter is 6.5 MHz ±0.2
MHz.
+
–
oscilloscope
or
frequency counte
r
MONITOR board
TP802
TP804
+
–
digital voltmete
r
MONITOR board
TP807
TP804
+
–
digital voltmete
r
MONITOR board
TP805/TP806/TP808
TP804
+
–
digital voltmete
r
MONITOR board
TP601
TP602
+
–
digital voltmete
r
MONITOR board
TP853
TP854
+
–
frequency counte
r
MONITOR board
TP403
TP405
SECTION 5
ELECTRICAL ADJUSTMENTS

15
MV-900SDS
5. NTSC SUB CARRIER CHECK
Setting:
Procedure:
1. Connect a frequency counter (high impedance) to the TP510
and TP513 on the MONITOR board.
2. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
3. In the normal mode, press the [INPUT] key on the remote
commander to select the “VIDEO” mode.
4. Input NTSC video signal to the “VIDEO INPUT” jack (J701
on the VIDEO (IN) board).
5. Check that the value of frequency counter is 3.579545 MHz
±100 Hz.
6. PAL SUB CARRIER CHECK
Setting:
Procedure:
1. Connect a frequency counter (high impedance) to the TP510
and TP513 on the MONITOR board.
2. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
3. In the normal mode, press the [INPUT] key on the remote
commander to select the “VIDEO” mode.
4. Input PAL video signal to the “VIDEO INPUT” jack (J701 on
the VIDEO (IN) board).
5. Check that the value of frequency counter is 4.433619 MHz
±100 Hz.
7. V-COM ADJUSTMENT
Setting:
Procedure:
– Voltage Set-up Adjustment –
1. Connect an oscilloscope to the TP819 and TP832 on the
MONITOR board.
2. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
3. Enter the test mode, and enter the “2. FOR FACTORY” mode.
(refer to “4. TEST MODE”)
4. Press the [MENU] button to display “Com Gain”, and press
the [REVERSE] button.
5. Adjust by pressing the [+]/ –buttons so that the voltage of
oscilloscope becomes 6.3 Vp-p ±0.1 V.
6. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
– Waveform Position Set-up Adjustment –
7. Adjust the RV802 on the MONITOR board so that Avalue
of waveform becomes –1.7 V ±0.1 V.
8. VIDEO ADJUSTMENT
Note: Perform the following adjustment items in test mode.
Common Setting:
1. Check that the voltage between TP951 (–) and TP952 (+) is
14.4 V. Press the [POWER] button to turn the power on.
2. Enter the test mode, and enter the “2. FOR FACTORY” mode.
(refer to “4. TEST MODE”)
3. Set the signal format system to NTSC. (refer to “4. TEST
MODE”)
4. Input 10 steps signal (NTSC, without burst) to the VIDEO
INPUT jack (J301 on the POWER board) from pattern
generator.
Waveform of input signal
fig. 8-1
Waveform of output signal
(TP810, TP811, TP812)
fig. 8-2
1Contrast Level of Luminance Signal
Setting:
Procedure:
1. Connect an oscilloscope to the TP513 and TP811 on the
MONITOR board.
2. Press the [MENU] button to display “Y Gain”, and press the
[REVERSE] button.
3. Adjust by pressing the [+]/ –buttons so that the D value of
waveform (fig. 8-2) becomes 3.4 V V.
4. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
+
–
frequency counte
r
MONITOR board
TP510
TP513
+
–
frequency counte
r
MONITOR board
TP510
TP513
+
–
oscilloscop
e
MONITOR board
TP819
TP832
6.3 Vp-p ± 0.1
V
4.6 V ± 0.1 V
A : – 1.7 V ± 0.1
V
0 V
0.286 V
1 Vp-p
0 V
AB CDE
+
–
oscilloscop
e
MONITOR board
TP811
TP513
+0.2
–0.1

16
MV-900SDS
2Back Limiter Level
Procedure:
1. In the “1Contrast Level of Luminance Signal” status, press
the [MENU] utton to display “Black Limit”, and press the
[REVERSE] button.
2. Adjust by pressing the [+]/ –buttons so that the Avalue of
waveform (fig. 8-2) becomes 1.0 V V.
3. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
3White Limiter Level
Procedure:
1. Inthe “2Black LimiterLevel”status, pressthe [MENU] button
to display “White Limit”, and press the [REVERSE] button.
2. Adjust by pressing the [+]/ –buttons so that the Evalue of
waveform (fig. 8-2) becomes 3.9 V V.
3. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
4R-sub Bright
Procedure:
1. In the “3White Limiter Level” status, connect the
oscilloscopeto theTP513 andTP810 on theMONITOR board.
2. Press the [MENU] button to display “R-Sub BRT”, and press
the [REVERSE] button.
3. Adjust by pressing the [+]/ –buttons so that the Avalue of
waveform (fig. 8-2) becomes 1.0 V V.
4. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
5B-sub Bright
Procedure:
1. In the “4R-sub Bright” status, connect the oscilloscope to
the TP513 and TP812 on the MONITOR board.
2. Press the [MENU] button to display “B-Sub BRT”, and press
the [REVERSE] button.
3. Adjust by pressing the [+]/ –buttons so that the Avalue of
waveform (fig. 8-2) becomes 1.0 V V.
4. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
6R-ch Sub Contrast
Procedure:
1. In the “5B-sub Bright” status, connect the oscilloscope to
the TP513 and TP810 on the MONITOR board.
2. Press the [MENU] button to display “R-Sub CONT”, and press
the [REVERSE] button.
3. Adjust by pressing the [+]/ –buttons so that the Dvalue of
waveform (fig. 8-2) becomes 3.4 V V.
4. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
7B-ch Sub Contrast
Procedure:
1. In the “6R-ch Sub Contrast” status, connect the oscilloscope
to the TP513 and TP812 on the MONITOR board.
2. Press the [MENU] button to display “B-Sub CONT”, and press
the [REVERSE] button.
3. Adjust by pressing the [+]/ –buttons so that the Dvalue of
waveform (fig. 8-2) becomes 3.4 V V.
4. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
8Gamma 1
Procedure:
1. In the “7B-ch Sub Contrast” status, connect the oscilloscope
to the TP513 and TP811 on the MONITOR board.
2. Press the [MENU] button to display “Gamma 1”, and press the
[REVERSE] button.
3. Adjust by pressing the [+]/ –buttons so that the Bvalue of
waveform (fig. 8-2) becomes 1.9 V V.
4. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
9Gamma 2
Procedure:
1. Inthe“8Gamma 1” status,press the [MENU] button todisplay
“Gamma 2”, and press the [REVERSE] button.
2. Adjust by pressing the [+]/ –buttons so that the Cvalue of
waveform (fig. 8-2) becomes 3.1 V V.
3. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
q; VCO Free Run
Setting:
Procedure:
1. In the “9Gamma 2” status, connect a frequency counter to
the TP506 and TP513 on the MONITOR board.
2. Press the [MENU] buttonto display“VCO Free Run”,andpress
the [REVERSE] button.
3. Adjust by pressing the [+]/ –buttons so that the value of
frequency counter becomes 15.734 kHz ±50 Hz.
4. Confirm that the displayed screen is normally display.
5. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
qa Vertical Position
Procedure:
1. In the “q; VCO Free Run” status, input the monoscope signal
to the VIDEO INPUT jack (J301 on the POWER board).
2. Press the [MENU] button to display “PLL/V Pos”, and press
the [REVERSE] button.
3. Adjustbypressingthe [+]/–buttonsso thattheverticalposition
of screen on the monitor becomes the most suitable.
4. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
qs Horizontal Position
Procedure:
1. In the “qa Vertical Position” status, press the [MENU] button
to display “H Pos”, and press the [REVERSE] button.
2. Adjust by pressing the [+]/ –buttons so that the horizontal
position of screen on the monitor becomes the most suitable.
3. Press the [REVERSE] button and write the date to EEPROM
(IC402 on the MONITOR board).
+
–
frequency counte
r
MONITOR board
TP506
TP513
+0.2
–0.1
+0.2
–0.1
+0.2
–0.1
+0.2
–0.1
+0.2
–0.1
+0.2
–0.1
+0.2
–0.1
+0.2
–0.1

17
MV-900SDS
Adjustment Location:
– LCD BOARD (Side A) –
RV601
RV802
RV803 RV801
TP853
TP983
– LCD BOARD (Side B) –
TP854
TP506
TP952 (+)
TP951 (
− )
TP513
TP805
TP807
TP804
TP802
TP811
TP828
TP812 TP810
TP601 TP602
TP510
TP405 TP987
TP832
TP808
TP819
TP806
TP403

18
MV-900SDS
MEMO

MV-900SDS
1919
MV-900SDS
DA-BE CK-BE CS-BE
DA-BE CK-BE CS-BE
LOW-PASS
FILTER
IC701
: DVD (VIDEO)
: DIGITAL OUT
: DVD (AUDIO)
: CHECK OUT
: CHECK IN
145
• SIGNAL PATH
•R-ch is omitted due to same as L-ch.
+8V
HD0 – HD15
+5V
B+8V
B+5V
DVD MECHANISM
DECK BLOCK
198
XLWRLL
RST XHRST
HDO – HD15
144
HINTJ HIRQ
155
HA1 HA1
154
HA0 HA0
158
HA2 HA2
146
IORDY HIORDY
149
IOWJ XHWR
150
IORJ XHRD
152
HCS1J XHCS1FX
151
HCS16J XHIOCS16
153
HCS3J HCS3FX
166
ENDSW ENDSW
2 DATA
16 SCK
1 BCK R-CH
L-CH_AU
3 LRCK
15 ML
14 MC
13 MD
MPEG DECODER
IC1
EEPROM
IC5
D/A CONVERTER
IC7
114VBS
113Y
108B-Y
106R-Y
CVBS
CVBS,
Y, B-Y, R-Y
Y
B-Y
R-Y
33DAC DATA
41SPDIF
OPTICAL
TRANSCEIVER
J301
FLASH ROM
IC3
DQ0 - DQ14 A–1, A0 - A18
RESET SIGNAL
GENERATOR
IC2
7VOUTL
R-CH
8VOUTR
24XRESET
12XRST
11ZEROR
39DAC MCLK
40DAC BCK
32DAC LRCK
165DAC ML
143DAC MC
118DAC MD
122 – 128,
131 – 137, 140, 141
MUTING
Q702, 704
DELAY
D13, Q3
MUTING
SWITCH
Q1, 2
OPTICAL
OUTPUT
142 MS SDIO
117 MC SCLK
167 M S BS
119 M S INS
B+3.6V
MS SDIO
MC SCLK
MS BS
MS INS
VCC
VCC
MEMORY
STICK
178 - 182, 185 - 191,
194 - 196
77 - 82, 85 - 90,
93 - 96
204 - 207, 2-7,
10 - 16, 19 - 21
45, 25, 24 - 16,
8 - 1, 48
29 - 36, 38 - 44
176
XLCS3
170
XLOE
28
XOE
26
XCE
11
XWE
74
DBANK1
73
DBANK0
SD-RAM
IC6
DQ0 - DQ15 A0 - A11
DB0 - DB15 DMA0 - DMA11 LD0 - LD14 LA0 - LA19
B+5V
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
53 - 58,
61 - 66
22 - 26,
29 - 25, 22
69
XDCAS
72
XDRAS0
18
XRAS0
17
XCAS
20
BA0
21
BA1
71
XDWE
100
XDCS0
70
DSCK_EN
102
DSCK
38
CLK
37
CKE
19
XCS
16
XWE
101
DQM
168169162
39
DQMH
160
SDA
5
SDA
161
SCL
4
SCL
A
B
DA-BE, CK-BE,
CS-BE
C
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – MPEG DECODER Section –
(Page 21)
(Page 20)
(Page 20)

MV-900SDS
2020
MV-900SDS
6-2. BLOCK DIAGRAM – AUDIO Section –
(Page 19)
(Page 22)
(Page 19)
• SIGNAL PATH
: DVD (AUDIO)
: AUX INPUT (AUDIO)
•R-ch is omitted due to same as L-ch.
IR TRANSMITTER
MODULATOR
IC904
AUDIO INPUT
SELECT
IC704
BPF
FL201
MUTING
Q708
LOW-PASS FILTER
Q208, 209
BUFFER
Q205
BUFFER
Q206
LEVEL SHIFT
Q210 – 213
STANDBY
SWITCH
Q710, 711
DISCHARGE SWITCH
Q714, 715
MUTING
SWITCH
Q318
MUTING
CONTROL
Q316, 317
DIFFERENTIAL
AMP
IC703
R-CH
J701 (1/2)
R
AUDIO
INPUT
L
R-CH
R-CH
FM+5V
R-CH
D317
D204
Q204
Q207
Q202
Q202, 204
RF LEVEL
SWITCHING
J702 (1/2)
R
POWER ON
L
FM STEREO
MODULATOR
IC201
R-CH
5
MPX ADJ 11 RF OUT
17
DATA
16
CLK
15
CE
18
ATT
9VTIN
7PD
22 LIN
64
AMP ON
15
DA (IN)-BE
49
FM1
50
FM2
4
FM-DATA
3
FM-CLK
7
S-SDA
6
S-SCL
5
FM-CE
POWER ON
MUTING
Q319, 320
16
DA (OUT)-BE
17
CK-BE
18
CS-BE
DA-BE
CK-BE CS-BE
1RIN
POWER AMP
IC707
LED DRIVE
Q902
LINE AMP
IC708
MUTING
Q713
XOUT XIN
14 13
X201
7.6MHz
SYSTEM CONTROLLER
IC401 (1/3)
R-CH
SP1
(L)
SP2
(R)
R-CH
R-CH
(FM MODULATOR)
B+8V
POWER ON
MUTING
Q321, 322
53
AMUTE
E
AUDIO
OUTPUT
R-CH
L-CH_AU
B
DA-BE, CK-BE,
CS-BE
C
SW1
D
RV900
VCO
8
5
7
ELECTRICAL VOLUME
IC706
D912, 914, 916
(IR TRANSMITTER)
LIN1
CLK
4
DATA
CLK DATA
CLK
DATA
LOUT1
1
7
VIN1
3 VIN2
2
SW1
VOUT
D911, 913, 915
(IR TRANSMITTER)
R-CH
B+8V
+5V
REGULATOR
IC304
B+ SWITCH
Q323, 324
+
(Page 21)