Sony HMD-A400 (serv.man4) Service Manual ▷ View online
1-4
10
Adjusting the centering of the
picture (CENTER)
picture (CENTER)
This setting is stored in memory for the current input signal.
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
SIZE/
CENTER and press the center of the control button
again.
again.
The SIZE/CENTER menu appears on the screen.
3
First move the control button
m
/
M
to select
(H-CENTER) for horizontal adjustment, or
(V-CENTER) for vertical adjustment. Then move
the control button
<
/
,
to adjust the centering.
Adjusting the size of the picture
(SIZE)
(SIZE)
This setting is stored in memory for the current input signal.
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
SIZE/
CENTER and press the center of the control button
again.
again.
The SIZE/CENTER menu appears on the screen.
3
First move the control button
m
/
M
to select
(H-SIZE) for horizontal adjustment, or
(V-SIZE) for vertical adjustment. Then move the
(V-SIZE) for vertical adjustment. Then move the
control button
<
/
,
to adjust the size.
Enlarging or reducing the picture
(ZOOM)
(ZOOM)
This setting is stored in memory for the current input signal.
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
SIZE/
CENTER and press the center of the control button
again.
again.
The SIZE/CENTER menu appears on the screen.
3
Move the control button
m
/
M
to select
(ZOOM),
and move
<
/
,
to enlarge or reduce the picture.
Adjusting the shape of the picture
(GEOMETRY)
(GEOMETRY)
The GEOMETRY settings allow you to adjust the rotation and
shape of the picture.
The
shape of the picture.
The
(ROTATION) setting is stored in memory for all input
signals. All other settings are stored in memory for the current
input signal.
input signal.
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
GEOMETRY and press the center of the control
button again.
button again.
The GEOMETRY menu appears on the screen.
3
First move the control button
m
/
M
to select the
desired adjustment item. Then move the control
button
button
<
/
,
to make the adjustment.
Adjusting the convergence
(CONVERGENCE)
(CONVERGENCE)
The CONVERGENCE settings allow you to adjust the quality of
the picture by controlling the convergence. The convergence
refers to the alignment of the red, green, and blue color signals.
If you see red or blue shadows around letters or lines, adjust the
convergence.
These settings are stored in memory for all input signals.
the picture by controlling the convergence. The convergence
refers to the alignment of the red, green, and blue color signals.
If you see red or blue shadows around letters or lines, adjust the
convergence.
These settings are stored in memory for all input signals.
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
CONVERGENCE and press the control button again.
The CONVERGENCE menu appears on the screen.
3
First move the control button
m
/
M
to select the
desired adjustment item. Then move the control
button
button
<
/
,
to make the adjustment.
Select
To
(ROTATION)
rotate the picture
(PIN)
expand or contract the picture sides
(PIN BALANCE)
shift the picture sides to the left or
right
right
(KEY)
adjust the picture width at the top of
the screen
the screen
(KEY BALANCE) shift the picture to the left or right at
the top of the screen
Select
To
horizontally shift red or blue shadows
vertically shift red or blue shadows
11
US
Adjusting the color of the picture
(COLOR)
(COLOR)
The COLOR settings allow you to adjust the picture’s color
temperature by changing the color level of the white color field.
Colors appear reddish if the temperature is low, and bluish if the
temperature is high. This adjustment is useful for matching the
monitor’s colors to a printed picture’s colors.
This setting is stored in memory for all input signals.
temperature by changing the color level of the white color field.
Colors appear reddish if the temperature is low, and bluish if the
temperature is high. This adjustment is useful for matching the
monitor’s colors to a printed picture’s colors.
This setting is stored in memory for all input signals.
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
COLOR
and press the center of the control button again.
The COLOR menu appears on the screen.
3
Move the control button
<
/
,
to select a color
temperature.
The preset color temperatures are 5000K, 6500K, and 9300K.
Since the default setting is 9300K, the whites will change
from a bluish hue to a reddish hue as the temperature is
lowered to 6500K and 5000K.
Since the default setting is 9300K, the whites will change
from a bluish hue to a reddish hue as the temperature is
lowered to 6500K and 5000K.
4
If necessary, fine tune the color temperature.
First move the control button
<
/
,
to select USER. Then
move the control button
m
/
M
to select R (red), G (green), or
B (blue) and move the control button
<
/
,
to make the
adjustment.
If you fine tune the color temperature, the new color settings
are stored in memory and recalled whenever you select
USER.
are stored in memory and recalled whenever you select
USER.
Additional settings (SCREEN)
You can manually degauss (demagnetize) the screen, and adjust
the moire cancellation level.
the moire cancellation level.
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
SCREEN and press the center of the control button
again.
again.
The SCREEN menu appears on the screen.
3
Move the control button
m
/
M
to select the desired
adjustment item.
Adjust the selected item according to the following
instructions.
instructions.
x
Degaussing the screen
The monitor is automatically demagnetized when the power is
turned on.
turned on.
To manually degauss the monitor, first move the
control button
control button
m
/
M
to select
(DEGAUSS). Then move
the control button
,
.
The screen is degaussed for about 5 seconds. If a second degauss
cycle is needed, allow a minimum interval of 20 minutes for the
best result.
cycle is needed, allow a minimum interval of 20 minutes for the
best result.
x
Adjusting the moire
*
If elliptical or wavy patterns appear on the screen, adjust the moire
cancellation level.
cancellation level.
To adjust the amount of moire cancellation, first move
the control button
the control button
m
/
M
to select
(CANCEL MOIRE).
Then move the control button
<
/
,
until the moire
effect is at a minimum.
* Moire is a type of natural interference which produces soft, wavy lines
on your screen. It may appear due to interference between the pattern
of the picture on the screen and the phosphor pitch pattern of the
monitor.
of the picture on the screen and the phosphor pitch pattern of the
monitor.
Resetting the adjustments
(RESET)
(RESET)
This monitor has the following two reset methods. Use the
RESET menu to reset the adjustments.
RESET menu to reset the adjustments.
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
0
RESET
and press the center fo the control button again.
The RESET menu appears on the screen.
Reset the settings according to the following instructions.
Reset the settings according to the following instructions.
Resetting all of the adjustment data for the
current input signal (MODE)
current input signal (MODE)
Move the control button
<
.
The MODE item is selected. All of the adjustment data for the
current input signal is reset.
Note that the following items are not reset by this method.
• on-screen menu language (page 7)
• picture’s rotation (page 10)
current input signal is reset.
Note that the following items are not reset by this method.
• on-screen menu language (page 7)
• picture’s rotation (page 10)
Resetting all of the adjustment data to factory
preset levels (ALL)
preset levels (ALL)
Move the control button
,
.
The ALL item is selected. All of the adjustment data for the
current input signal is reset. All of the adjustment data (except for
the USER settings in the COLOR menu) is reset to the factory
preset levels.
current input signal is reset. All of the adjustment data (except for
the USER settings in the COLOR menu) is reset to the factory
preset levels.
Note
The monitor
’
s buttons will not operate for about 5 seconds when ALL is
selected.
K
K
K
R
5 0
G
5 0
B
5 0
SE L ECT
EX I T
COLOR
5000
6500
9300
USER
MENU
Example of moire
1-5
12
Technical Features
Preset and user modes
When the monitor receives an input signal, it automatically
matches the signal to one of the factory preset modes stored in the
monitor’s memory to provide a high quality picture at the center of
the screen. (See Appendix for a list of the factory preset modes.)
For input signals that do not match one of the factory preset
modes, the digital Multiscan technology of this monitor ensures
that a clear picture appears on the screen for any timing in the
monitor’s frequency range (horizontal: 30 – 86 kHz, vertical: 48 –
120 Hz). If the picture is adjusted, the adjustment data is stored as
a user mode and automatically recalled whenever the same input
signal is received.
matches the signal to one of the factory preset modes stored in the
monitor’s memory to provide a high quality picture at the center of
the screen. (See Appendix for a list of the factory preset modes.)
For input signals that do not match one of the factory preset
modes, the digital Multiscan technology of this monitor ensures
that a clear picture appears on the screen for any timing in the
monitor’s frequency range (horizontal: 30 – 86 kHz, vertical: 48 –
120 Hz). If the picture is adjusted, the adjustment data is stored as
a user mode and automatically recalled whenever the same input
signal is received.
Note for Windows users
For Windows users, check your video board manual or the utility
program which comes with your graphic board and select the
highest available refresh rate to maximize monitor performance.
program which comes with your graphic board and select the
highest available refresh rate to maximize monitor performance.
Power saving function
This monitor meets the power-saving guidelines set by VESA,
E
NERGY
S
TAR, and NUTEK. If no signal is received by the
monitor from the connected computer, the monitor will
automatically reduce power consumption as shown below.
automatically reduce power consumption as shown below.
*
Figures reflect power consumption when no USB compatible
peripherals are connected to the monitor.
peripherals are connected to the monitor.
** When your computer enters the “active off” mode, the input signal is
cut and NO INPUT SIGNAL appears on the screen. After 20 seconds,
the monitor enters the power saving mode.
the monitor enters the power saving mode.
Troubleshooting
Before contacting technical support, refer to this section.
If thin lines appear on your screen
(damper wires)
(damper wires)
The visible lines on your screen especially when the background
screen color is light (usually white), are normal for the Trinitron
monitor. This is not a malfunction. These are shadows from the
damper wires used to stabilize the aperture grille. The aperture
grille is the essential element that makes a Trinitron picture tube
unique by allowing more light to reach the screen, resulting in a
brighter, more detailed picture.
screen color is light (usually white), are normal for the Trinitron
monitor. This is not a malfunction. These are shadows from the
damper wires used to stabilize the aperture grille. The aperture
grille is the essential element that makes a Trinitron picture tube
unique by allowing more light to reach the screen, resulting in a
brighter, more detailed picture.
On-screen messages
If there is something wrong with the input signal, one of the
following messages appears on the screen. To solve the problem,
see “Trouble symptoms and remedies” on page 13.
following messages appears on the screen. To solve the problem,
see “Trouble symptoms and remedies” on page 13.
The input signal condition
OUT OF SCAN RANGE
indicates that the input signal is not supported by the
monitor’s specifications.
monitor’s specifications.
NO INPUT SIGNAL
indicates that no signal is being input to the monitor.
Power mode
Power
consumption
consumption
*
!
(power)
indicator
normal
operation
operation
≤
150 W
green
active off**
≤
3 W
orange
power off
0 W
off
Damper wires
INFORMATION
OUT OF SCAN RANGE
Input signal condition
13
US
Trouble symptoms and remedies
If the problem is caused by the connected computer or other equipment, please refer to the connected equipment’s instruction manual.
Use the self-diagnosis function (page 15) if the following recommendations do not resolve the problem.
Use the self-diagnosis function (page 15) if the following recommendations do not resolve the problem.
Symptom
Check these items
No picture
If the
!
(power) indicator is not lit
• Check that the power cord is properly connected.
• Check that the
• Check that the
!
(power) switch is in the “on” position.
If the NO INPUT SIGNAL message
appears on the screen, or if the
appears on the screen, or if the
!
(power) indicator is orange
• Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets (page 6).
• Check that the HD15 video input connector’s pins are not bent or pushed in.
x
Problems caused by the connected computer or other equipment
• The computer is in power saving mode. Try pressing any key on the computer keyboard or
moving the mouse.
• Check that the computer’s power is “on.”
• Check that the graphic board is completely seated in the proper bus slot.
• Check that the graphic board is completely seated in the proper bus slot.
If the OUT OF SCAN RANGE
message appears on the screen
message appears on the screen
x
Problems caused by the connected computer or other equipment
• Check that the video frequency range is within that specified for the monitor. If you
replaced an old monitor with this monitor, reconnect the old monitor and adjust the
frequency range to the following.
Horizontal: 30 – 86 kHz
Vertical: 48 – 120 Hz
frequency range to the following.
Horizontal: 30 – 86 kHz
Vertical: 48 – 120 Hz
If no message is displayed and the
!
(power) indicator is green or flashing
orange
orange
• Use the Self-diagnosis function (page 15).
If using a Macintosh system
• Check that the Macintosh adapter (not supplied) and the video signal cable are properly
connected (page 6).
Picture flickers, bounces,
oscillates, or is scrambled
oscillates, or is scrambled
• Isolate and eliminate any potential sources of electric or magnetic fields such as other
monitors, laser printers, electric fans, fluorescent lighting, or televisions.
• Move the monitor away from power lines or place a magnetic shield near the monitor.
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try turning the monitor 90
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try turning the monitor 90
°
to the left or right.
x
Problems caused by the connected computer or other equipment
• Check your graphics board manual for the proper monitor setting.
• Confirm that the graphics mode (VESA, etc.) and the frequency of the input signal are
• Confirm that the graphics mode (VESA, etc.) and the frequency of the input signal are
supported by this monitor (Appendix). Even if the frequency is within the proper range,
some video boards may have a sync pulse that is too narrow for the monitor to sync
correctly.
some video boards may have a sync pulse that is too narrow for the monitor to sync
correctly.
• Adjust the computer’s refresh rate (vertical frequency) to obtain the best possible picture.
Picture is fuzzy
• Adjust the brightness and contrast (page 9).
• Degauss the monitor* (page 11).
• Select CANCEL MOIRE and adjust the moire cancellation effect (page 11).
• Degauss the monitor* (page 11).
• Select CANCEL MOIRE and adjust the moire cancellation effect (page 11).
Picture is ghosting
• Eliminate the use of video cable extensions and/or video switch boxes.
• Check that all plugs are firmly seated in their sockets.
• Check that all plugs are firmly seated in their sockets.
Picture is not centered or sized
properly
properly
• Adjust the size (page 10) or centering (page 10). Note that some video modes do not fill
the screen to the edges.
Edges of the image are curved
• Adjust the geometry (page 10).
Wavy or elliptical pattern (moire)
is visible
is visible
• Select CANCEL MOIRE and adjust the moire cancellation effect (page 11).
x
Problems caused by the connected computer or other equipment
• Change your desktop pattern.
(continued)
1-6
14
* If a second degauss cycle is needed, allow a minimum interval of 20 minutes for the best result. A humming noise may be heard, but this is not a
malfunction.
Displaying this monitor’s name, serial number,
and date of manufacture
and date of manufacture
1
Press the center of the control button.
The main MENU appears on the screen.
2
Move the control button
m
/
M
to highlight
LANGUAGE/INFORMATION and press the center
of the control button.
The LANGUAGE/INFORMATION menu appears on the
screen.
screen.
3
Move the control button
m
/
M
to select
.
This monitor’s information menu appears on the screen.
If the problem persists, call your authorized Sony dealer and give
the following information.
• Model name: HMD-A400
• Serial number
• Name and specifications of your computer and graphics board.
the following information.
• Model name: HMD-A400
• Serial number
• Name and specifications of your computer and graphics board.
Color is not uniform
• Degauss the monitor* (page 11). If you place equipment that generates a magnetic field,
such as a speaker, near the monitor, or if you change the direction the monitor faces, color
may lose uniformity.
may lose uniformity.
White does not look white
• Adjust the color temperature (page 11).
Letters and lines show red or blue
shadows at the edges
shadows at the edges
• Adjust the convergence (page 10).
USB peripherals do not function
• Check that the appropriate USB connectors are securely connected (page 7).
• Check that the
• Check that the
!
(power) switch is in the “on” position.
x
Problems caused by the connected computer or other equipment
• Check that the power of any self-powered USB compliant peripheral devices is “on.”
• Install the latest version of the device driver on your computer. Contact your device’s
• Install the latest version of the device driver on your computer. Contact your device’s
manufacturer for information about the appropriate device driver.
• If your USB compliant keyboard or mouse does not function, connect them directly to
your computer, reboot your computer, and make any necessary adjustments to the USB
settings. Then reconnect the keyboard or mouse to the monitor. If you connect a keyboard
or mouse to the USB connectors and then boot your computer for the first time, the
peripheral devices may not function.
settings. Then reconnect the keyboard or mouse to the monitor. If you connect a keyboard
or mouse to the USB connectors and then boot your computer for the first time, the
peripheral devices may not function.
• For customers using Windows 95
1. Right-click on My Computer and select Properties.
2. Click on the Device Manager tab. Scroll down and select Universal Serial Bus
2. Click on the Device Manager tab. Scroll down and select Universal Serial Bus
Controller.
If Universal Serial Bus Controller does not appear, you need to load a USB supplement
disk. Contact your computer’s manufacturer for more information about obtaining a
USB supplement disk.
If Universal Serial Bus Controller does not appear, you need to load a USB supplement
disk. Contact your computer’s manufacturer for more information about obtaining a
USB supplement disk.
3. Select Generic USB Device from the USB controller list and click on Properties.
4. If there is a check in the box next to “Disable in this hardware profile,” remove the
4. If there is a check in the box next to “Disable in this hardware profile,” remove the
check.
5. Click on Refresh.
A hum is heard right after the
power is turned on
power is turned on
• This is the sound of the auto-degauss cycle. When the power is turned on, the monitor is
automatically degaussed for five seconds.
Symptom
Check these items
MODE L : HMD - A 4 0 0
SER I A L : 1 2 3 4 5 6 7 8
MANUF ACTURED : 2 0 0 0 . 5 2
SE L ECT
EX I T
LANGUAGE / I NFORMAT I ON
Example
15
US
Self-diagnosis function
This monitor is equipped with a self-diagnosis function. If there is
a problem with your monitor or computer, the screen will go blank
and the
a problem with your monitor or computer, the screen will go blank
and the
!
(power) indicator will either light up green or flash
orange. If the
!
(power) indicator is lit in orange, the computer is
in power saving mode. Try pressing any key on the keyboard.
If the
!
(power) indicator is green
1
Disconnect the video input cable or turn off the
connected computer.
connected computer.
2
Press the
!
(power) button twice to turn the monitor
off and then on.
3
Move the control button
,
for 2 seconds before the
monitor enters power saving mode.
If all four color bars appear (white, red, green, blue), the monitor
is working properly. Reconnect the video input cable and check
the condition of your computer.
is working properly. Reconnect the video input cable and check
the condition of your computer.
If the color bars do not appear, there is a potential monitor failure.
Inform your authorized Sony dealer of the monitor’s condition.
Inform your authorized Sony dealer of the monitor’s condition.
If the
!
(power) indicator is flashing orange
Press the
!
(power) button twice to turn the monitor off
and then on.
If the
!
(power) indicator lights up green, the monitor is working
properly.
If the
!
(power) indicator is still flashing, there is a potential
monitor failure. Count the number of seconds between orange
flashes of the
flashes of the
!
(power) indicator and inform your authorized
Sony dealer of the monitor’s condition. Be sure to note the model
name and serial number of your monitor. Also note the make and
model of your computer and video board.
name and serial number of your monitor. Also note the make and
model of your computer and video board.
Specifications
CRT
0.24 mm aperture grille pitch (center)
19 inches measured diagonally
90-degree deflection
FD Trinitron
19 inches measured diagonally
90-degree deflection
FD Trinitron
Viewable image size
Approx. 365
×
274 mm (w/h)
(14
3
/
8
×
10
7
/
8
inches)
18.0" viewing image
Resolution
Maximum
Horizontal: 1600 dots
Vertical: 1200 lines
Vertical: 1200 lines
Recommended
Horizontal: 1280 dots
Vertical: 1024 lines
Vertical: 1024 lines
Standard image area
Approx. 352
×
264 mm (w/h)
(13
7
/
8
×
10
1
/
2
inches)
Deflection frequency*
Horizontal: 30 to 86 kHz
Vertical: 48 to 120 Hz
Vertical: 48 to 120 Hz
AC input voltage/current 100 – 120 V, 50 – 60 Hz, 2.3 A
Power consumption
Power consumption
Max. 150 W
Dimensions
Approx. 497
×
458
×
469 mm
(w/h/d)
(19
(19
5
/
8
×
18
1
/
8
×
18
1
/
2
inches)
Mass
Approx. 26 kg (57 lb 5 oz)
Plug and Play
DDC2B/DDC2Bi
Supplied accessories
See page 6
* Recommended horizontal and vertical timing condition
• Horizontal sync width should be more than 1.0 µsec.
• Horizontal blanking width should be more than 3.0 µsec.
• Vertical blanking width should be more than 500 µsec.
• Horizontal blanking width should be more than 3.0 µsec.
• Vertical blanking width should be more than 500 µsec.
Design and specifications are subject to change without notice.
MENU
!
(power) indicator
MENU
HMD-A400
SECTION 2
DISASSEMBLY
2-1. BUCKET ASSEMBLY REMOVAL
2-2. A BOARD REMOVAL
2-1
1
Two screws
(+BVTP 4 x 16)
(+BVTP 4 x 16)
1
Two screws
(+BVTP 4 x 16)
(+BVTP 4 x 16)
2
Bucket assembly
GND
CN309
CN307
A board
1
CN302
CN305
CN304
CN306
CN301
CN310
CN303
Click on the first or last page to see other HMD-A400 (serv.man4) service manuals if exist.