Sony SDM-M51 Service Manual ▷ View online
SDM-M51
– 5 –
TABLE OF CONTENTS
Section
Title
Page
1. GENERAL
.................................................................. 1-1
2. DISASSEMBLY
2-1.
Bezel Assy, and Back Cabinet Removal ........... 2-1
2-2.
TFT Panel and H Board Removal ........................ 2-2
2-3.
DC-AC Inverter Removal .................................. 2-2
2-4.
A Board and J2 Board Removal ......................... 2-3
2-5.
J1 Board Removal ............................................... 2-4
3. ADJUSTMENTS
3-1.
Adjusment (1) ..................................................... 3-1
3-2.
Adjusment (2) ..................................................... 3-2
4. DIAGRAMS
4-1.
Block Diagrams .................................................... 4-1
4-2.
Circuit Boards Location ...................................... 4-3
4-3.
Schematic Diagrams and Printed Wiring Boards ... 4-3
(1) Schematic Diagram of H Board ........................... 4-4
(2) Schematic Diagram of A (a-c) Board .................. 4-5
(3) Schematic Diagram of J, J2 Board ....................... 4-12
4-4. Semiconductors ................................................... 4-14
5. EXPLODED VIEWS
5-1.
Chassis ................................................................. 5-1
5-2.
Packing Materials ................................................ 5-2
6. ELECTRICAL PARTS LIST
............................ 6-1
SECTION 1
GENERAL
The operating instructions mentioned here are partial abstracts
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remein as in the manual.
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remein as in the manual.
1-1
4
Precautions
Warning on power connections
• Use the supplied power cord. If you use a different power cord,
be sure that it is compatible with your local power supply.
For the customers in the U.S.A.
If you do not use the appropriate cord, this monitor will not
conform to mandatory FCC standards.
For the customers in the UK
If you use the monitor in the UK, be sure to use the appropriate
UK power cord.
For the customers in the U.S.A.
If you do not use the appropriate cord, this monitor will not
conform to mandatory FCC standards.
For the customers in the UK
If you use the monitor in the UK, be sure to use the appropriate
UK power cord.
For use only with power supply LIEN, LE-9702B-01A
Installation
Do not install or leave the monitor:
• In places subject to extreme temperatures, for example near a
• In places subject to extreme temperatures, for example near a
radiator, heating vent, or in direct sunlight. Subjecting the
monitor to extreme temperatures, such as in an automobile
parked in direct sunlight or near a heating vent, could cause
deformations of the casing or malfunctions.
monitor to extreme temperatures, such as in an automobile
parked in direct sunlight or near a heating vent, could cause
deformations of the casing or malfunctions.
• In places subject to mechanical vibration or shock.
• Near any equipment that generates a strong magnetic field,
• Near any equipment that generates a strong magnetic field,
such as a TV or various other household appliances.
• In places subject to inordinate amounts of dust, dirt, or sand, for
example near an open window or an outdoor exit. If setting up
temporarily in an outdoor environment, be sure to take
adequate precautions against airborne dust and dirt. Otherwise
irreparable malfunctions could occur.
temporarily in an outdoor environment, be sure to take
adequate precautions against airborne dust and dirt. Otherwise
irreparable malfunctions could occur.
Handling the LCD screen
• Do not leave the LCD screen facing the sun as it can damage
the LCD screen. Take care when you place the monitor by a
window.
window.
• Do not push on or scratch the LCD screen. Do not place a heavy
object on the LCD screen. This may cause the screen to lose
uniformity or cause LCD panel malfunctions.
uniformity or cause LCD panel malfunctions.
• If the monitor is used in a cold place, a residual image may
appear on the screen. This is not a malfunction. The screen
returns to normal as the temperature rises to a normal operating
level.
returns to normal as the temperature rises to a normal operating
level.
• If a still picture is displayed for a long time, a residual image
may appear for a while. The residual image will eventually
disappear.
disappear.
• The LCD panel becomes warm during operation. This is not a
malfunction.
About the built-in stereo speaker
Be sure to keep magnetic recording equipment, tapes, and floppy
discs away from the speaker’s opening as the speakers generate a
magnetic field. This magnetic field may affect data stored on
magnetic tapes and discs.
discs away from the speaker’s opening as the speakers generate a
magnetic field. This magnetic field may affect data stored on
magnetic tapes and discs.
About the bright points of light or black dots
Bright points of light (red, blue or green) or black dots
may appear on the LCD screen. This is not a
malfunction. The LCD screen is made with high-
precision technology and more than 99.99 % of the
picture element is intact. However, some of the picture
element may not appear or some of the picture element
may appear constantly.
may appear on the LCD screen. This is not a
malfunction. The LCD screen is made with high-
precision technology and more than 99.99 % of the
picture element is intact. However, some of the picture
element may not appear or some of the picture element
may appear constantly.
Replacement of the fluorescent tube
A specially designed fluorescent tube is installed as the lighting
apparatus for this monitor. If the screen becomes dark, unstable,
or does not turn on, replace the fluorescent tube with a new one.
Consult your Sony dealer when replacing the fluorescent tube.
apparatus for this monitor. If the screen becomes dark, unstable,
or does not turn on, replace the fluorescent tube with a new one.
Consult your Sony dealer when replacing the fluorescent tube.
Maintenance
• Be sure to unplug the power cord from the power outlet before
cleaning your monitor.
• Clean the LCD screen with a soft cloth. If you use a glass
cleaning liquid, do not use any type of cleaner containing an
anti-static solution or similar additive as this may scratch the
LCD screen’s coating.
anti-static solution or similar additive as this may scratch the
LCD screen’s coating.
• Clean the cabinet, panel, and controls with a soft cloth lightly
moistened with a mild detergent solution. Do not use any type
of abrasive pad, scouring powder, or solvent, such as alcohol or
benzine.
of abrasive pad, scouring powder, or solvent, such as alcohol or
benzine.
• Do not rub, touch, or tap the surface of the screen with sharp or
abrasive items such as a ballpoint pen or screwdriver. This type
of contact may result in a scratched picture tube.
of contact may result in a scratched picture tube.
• Note that material deterioration or LCD screen coating
degradation may occur if the monitor is exposed to volatile
solvents such as insecticide, or if prolonged contact is
maintained with rubber or vinyl materials.
solvents such as insecticide, or if prolonged contact is
maintained with rubber or vinyl materials.
Transportation
• Disconnect all cables from the monitor and grasp the support
and base sections of the display stand firmly with both hands
when transporting. If you drop the monitor, you may be injured
or the monitor may be damaged.
when transporting. If you drop the monitor, you may be injured
or the monitor may be damaged.
• When you transport this monitor for repair or shipment, use the
original carton and packing materials.
Disposal of the monitor
•
Do not dispose of this monitor with general
household waste.
household waste.
•
The fluorescent tube used in this monitor contains
mercury. Disposal of this monitor must be carried out
in accordance to the regulations of your local
sanitation authority.
mercury. Disposal of this monitor must be carried out
in accordance to the regulations of your local
sanitation authority.
The equipment should be installed near an easily accessible outlet.
Example of plug types
for 100 to 120 V AC
for 200 to 240 V AC
for 240 V AC only
5
GB
Identifying parts and controls
See the pages in parentheses for further details.
1
1
(Power) switch and indicator (pages 9, 17, 21)
This switch turns the display on and off.
The power indicator lights up in green when the display is
turned on, and either flashes in green and orange, or lights up
in orange when the monitor is in power saving mode.
The power indicator lights up in green when the display is
turned on, and either flashes in green and orange, or lights up
in orange when the monitor is in power saving mode.
2
MENU button (pages 11, 12)
This button displays the main menu.
3 6
(contrast) button (page 12)
This button displays the CONTRAST menu.
4 8
(brightness) button (page 12)
This button displays the BRITGHTNESS menu.
5
2
(volume) +/– and
M
(+)/
m
(–) buttons (pages 9, 12)
These buttons display the VOLUME menu and function as
the M(+)/m(–) buttons when selecting the menu items and
making adjustments.
the M(+)/m(–) buttons when selecting the menu items and
making adjustments.
6
OK button (page 12)
This button selects the item or executes the settings in the
menu.
menu.
7
Stereo speaker (page 9)
This outputs the audio signals as sound.
8
Headphones jack (page 9)
This jack outputs audio signals to the headphones.
9
Security Lock Hole ( )
The security lock hole should be applied with the Kensington
Micro Saver Security System.
Micro Saver Security System is a trademark of Kensington.
Micro Saver Security System.
Micro Saver Security System is a trademark of Kensington.
MENU
OK
Front of the LCD display
Side view of the LCD display
Rear of the display stand
(continued)
1-2
6
Rear of the LCD display
0
Back cover (page 8)
Open this cover when you connect/disconnect cables or cords.
qa
DC IN connector/AC adapter (page 8)
This connector provides DC power to the display. Connect the
AC adapter to this connector.
AC adapter to this connector.
qs
AUDIO IN jack/Audio cord (page 8)
This jack inputs audio signals when connecting to the audio
output jack of the computer or other audio equipment.
output jack of the computer or other audio equipment.
qd
HD15 (RGB) input connector/HD15 (RGB) video
signal cable (page 7)
signal cable (page 7)
This connector inputs RGB video signals (0.7 Vp-p, positive)
and SYNC signals.
and SYNC signals.
* DDC (Display Data Channel) is a standard of VESA.
qf
Cable holder (page 8)
This part secures cables and cords to the monitor.
OPEN
Pin No.
Signal
1
Red
2
Green
(Sync on Green)
(Sync on Green)
3
Blue
4
ID (Ground)
5
DDC Ground*
6
Red Ground
7
Green Ground
8
Blue Ground
9
DDC + 5V*
10
Ground
11
ID (Ground)
12
Bi-Directional Data (SDA)*
13
H. Sync
14
V. Sync
15
Data Clock (SCL)*
5 4
3 2 1
6
7
8
9
10
11
12
13
14
15
7
GB
Setup
Before using your monitor, check that the following accessories
are included in your carton:
• LCD display
• Power cord
• AC adapter
• HD15 (RGB) video signal cable (this cable is already
are included in your carton:
• LCD display
• Power cord
• AC adapter
• HD15 (RGB) video signal cable (this cable is already
connected to the monitor)
• Audio cord (stereo miniplug)
• Cord clip (2)
• Macintosh adapter
• Windows Monitor Information/Windows Utility/Macintosh
• Cord clip (2)
• Macintosh adapter
• Windows Monitor Information/Windows Utility/Macintosh
Utility Disk
• Warranty card
• Notes for Macintosh users
• This instruction manual
• Notes for Macintosh users
• This instruction manual
Step 1: Connect the display to your
computer
Turn off the monitor and computer before connecting.
Note
Do not touch the pins of the video signal cable connector as this might
bend the pins.
bend the pins.
x
Connecting to an IBM PC/AT or compatible
computer
computer
x
Connecting to a Macintosh or compatible
computer
computer
Use the supplied Macintosh adapter.
* Refer to the supplied “Notes for Macintosh users” for further details.
IBM PC/AT or
compatible computer
compatible computer
HD 15 (RGB) video
signal cable (supplied)
signal cable (supplied)
to VIDEO output
Macintosh adapter
(supplied)
(supplied)
*
HD15 (RGB) video
signal cable (supplied)
signal cable (supplied)
to video output
Macintosh or
compatible computer
compatible computer
(continued)
1-3
8
Step 2: Connect the audio cord
Open the back cover and turn off the display before connecting.
Note
Do not open the back cover more than 90 degrees, otherwise damage may
result to the back cover or latch.
result to the back cover or latch.
Step 3: Connect the power cord
With the monitor and computer switched off, first connect the AC
adapter and power cord to the monitor, then connect it to a power
outlet.
adapter and power cord to the monitor, then connect it to a power
outlet.
Step 4: Secure the cords and close
the back cover
1
Remove the cable holder.
2
Secure the cables and cords with the cable holder.
3
Close the back cover.
Bandle the cables and cords
You can bandle the cables and cords by using the supplied cord
clip.
clip.
OPEN
to audio input
to audio input of the
computer or other audio
equipment
computer or other audio
equipment
audio cord (supplied)
OPEN
AC adapter (supplied)
to a power outlet
power cord (supplied)
to DC IN
Cable holder
Cable
holder
holder
OPEN
Cord clip
9
GB
Step 5: Turn on the monitor and
computer
1
Press the
1
(power) switch.
The indicator of the monitor lights up in green.
2
Turn on the computer.
The installation of your monitor is complete. If necessary, use the
monitor’s controls to adjust the picture.
monitor’s controls to adjust the picture.
If no picture appears on your screen
• Check that the monitor is correctly connected to the computer.
• If NO INPUT SIGNAL appears on the screen, the computer is
• If NO INPUT SIGNAL appears on the screen, the computer is
in the power saving mode. Try pressing any key on the
keyboard or moving the mouse.
keyboard or moving the mouse.
• If CABLE DISCONNECTED appears on the screen, check that
the video input cable is properly connected.
• If OUT OF SCAN RANGE appears on the screen, reconnect
the old monitor. Then adjust the computer’s graphic board so
that the horizontal frequency is between 28 – 64 kHz, and the
vertical frequency is between 48 – 75 Hz.
that the horizontal frequency is between 28 – 64 kHz, and the
vertical frequency is between 48 – 75 Hz.
For more information about the on-screen messages, see “Trouble
symptoms and remedies” on page 19.
symptoms and remedies” on page 19.
For customers using Windows 95/98/2000
To maximize the potential of your monitor, install the new model
information file from the supplied Windows Monitor Information Disk
onto your PC.
information file from the supplied Windows Monitor Information Disk
onto your PC.
This monitor complies with the “VESA DDC” Plug & Play standard. If
your PC/graphics board complies with DDC, select “Plug & Play Monitor
(VESA DDC)” or this monitor’s model name as the monitor type in the
“Control Panel” of Windows 95/98/2000. If your PC/graphics board has
difficulty communicating with this monitor, load the Windows Monitor
Information Disk and select this monitor’s model name as the monitor
type.
your PC/graphics board complies with DDC, select “Plug & Play Monitor
(VESA DDC)” or this monitor’s model name as the monitor type in the
“Control Panel” of Windows 95/98/2000. If your PC/graphics board has
difficulty communicating with this monitor, load the Windows Monitor
Information Disk and select this monitor’s model name as the monitor
type.
For customers using Windows NT4.0
Monitor setup in Windows NT4.0 is different from Windows 95/98/2000
and does not involve the selection of monitor type. Refer to the Windows
NT4.0 instruction manual for further details on adjusting the resolution,
refresh rate, and number of colors.
and does not involve the selection of monitor type. Refer to the Windows
NT4.0 instruction manual for further details on adjusting the resolution,
refresh rate, and number of colors.
Adjusting the monitor’s resolution and color number
Adjust the monitor’s resolution and color number by referring to your
computer’s instruction manual. The color number may vary according to
your computer or video board. The color palette setting and the actual
number of colors are as follows:
• High Color (16 bit) t 65,536 colors
• True Color (24 bit) t about 16.77 million colors
In true color mode (24 bit), speed may be slower.
computer’s instruction manual. The color number may vary according to
your computer or video board. The color palette setting and the actual
number of colors are as follows:
• High Color (16 bit) t 65,536 colors
• True Color (24 bit) t about 16.77 million colors
In true color mode (24 bit), speed may be slower.
Using the stereo speaker
You can listen to music, sounds, and other audio files using the
stereo speaker of your monitor.
stereo speaker of your monitor.
Adjusting the volume
Volume adjustments are made using a separate VOLUME menu
from the main menu (page 11).
from the main menu (page 11).
1
Press the
2
+/– buttons.
The VOLUME menu appears on the screen.
2
Press the
2
+/– button to adjust the volume.
The menu automatically disappears after about 5 seconds.
Using the headphones jack
You can listen to the audio signals from your computer or other
audio equipment using headphones. Connect your headphones to
the headphones jack. The speaker turns off when headphones are
connected to the headphones jack. Adjust the volume of the
headphones using the VOLUME menu.
audio equipment using headphones. Connect your headphones to
the headphones jack. The speaker turns off when headphones are
connected to the headphones jack. Adjust the volume of the
headphones using the VOLUME menu.
Notes
• You cannot adjust the volume when displaying the main menu on the
screen.
• When your monitor is in power saving mode, no sound comes from the
speaker.
VOL UME
4 0
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