Sony GDM-F400 / GDM-F400T9 Service Manual ▷ View online
1-4
10
Customizing Your Monitor
You can make numerous adjustments to your monitor using the
on-screen menu.
on-screen menu.
Navigating the menu
Press the joystick to display the main MENU on your screen. See
page 11 for more information on using the joystick.
page 11 for more information on using the joystick.
Use the joystick to select one of the following menus.
1
CENTER (page 11)
Select the CENTER menu to adjust
the picture’s centering.
the picture’s centering.
2
SIZE (page 11)
Select the SIZE menu to adjust the
picture’s horizontal and vertical
size.
picture’s horizontal and vertical
size.
3
GEOM (page 12)
Select the GEOM menu to adjust the
picture’s rotation and shape.
picture’s rotation and shape.
4
ZOOM (page 12)
Select the ZOOM menu to enlarge
or reduce the picture.
or reduce the picture.
5
COLOR (page 12)
Select the COLOR menu to adjust
the picture’s color temperature. You
can use this to match the monitor’s
colors to a printed picture’s colors.
the picture’s color temperature. You
can use this to match the monitor’s
colors to a printed picture’s colors.
MENU
EXIT
CENTER
SIZE
GEOM
COLOR
LANG
ZOOM
SCREEN
OPTION
MENU
CENTER
26
73
SIZE
26
73
ROTATION
GEOMETRY
26
ZOOM
73
V
26
H
COLOR
R B I AS
5000K
6500K
50
G B I AS
50
B B I AS
50
R GAIN
50
G GAIN
50
B GAIN
50
9300K
6
SCREEN (page 13)
Select the SCREEN menu to adjust
the picture’s quality. You can adjust
the vertical and horizontal
convergence, landing, and moire
cancellation effect.
the picture’s quality. You can adjust
the vertical and horizontal
convergence, landing, and moire
cancellation effect.
7
LANG (page 8)
Select LANG to choose the on-
screen menu’s language.
screen menu’s language.
8
OPTION (page 14)
Select OPTION to adjust the
monitor’s options. The options
include:
• degaussing the screen
• changing the on-screen menu
monitor’s options. The options
include:
• degaussing the screen
• changing the on-screen menu
position
• changing the power saving delay
time
• locking the controls
9
EXIT
Select EXIT to close the menu.
SCREEN
TOP
BOT
BOT
H CONVERGENCE
26
ADJ
ENGLISH
FRANÇAIS
DEUTSCH
ESPAÑOL
I TA LIANO
FRANÇAIS
DEUTSCH
ESPAÑOL
I TA LIANO
LANGUAGE
ON
MANUAL DEGAUSS
UNLOCK
5 SEC
OPTION
ZZ...
11
EN
x
Using the joystick
1
Select the menu you want to adjust.
Move the joystick up, down, left, or right to highlight the
desired menu. Press the joystick to select the menu item.
desired menu. Press the joystick to select the menu item.
2
Adjust the menu.
Move the joystick up, down, left, or right to make the
adjustment.
adjustment.
3
Close the menu.
Press the joystick once to return to the main menu, and twice
to return to normal viewing. If no buttons are pressed, the
menu closes automatically after about 30 seconds.
to return to normal viewing. If no buttons are pressed, the
menu closes automatically after about 30 seconds.
x
Resetting the adjustments
Press the RESET button. See page 14 for more information on
resetting the adjustments.
resetting the adjustments.
Adjusting the brightness and
contrast
contrast
Brightness and contrast adjustments are made using a separate
BRIGHTNESS/CONTRAST menu.
These settings are stored in memory for all input signals.
BRIGHTNESS/CONTRAST menu.
These settings are stored in memory for all input signals.
1
Move the joystick in any direction.
The BRIGHTNESS/CONTRAST menu appears on the
screen.
screen.
2
Move the joystick up or down to adjust the
brightness (
brightness (
), and left or right to adjust the
contrast (
6
).
The menu automatically disappears after about 3 seconds.
Adjusting the centering of the
picture (CENTER)
picture (CENTER)
This setting is stored in memory for the current input signal.
1
Press the joystick.
The main MENU appears on the screen.
2
Move the joystick to highlight
CENTER and
press the joystick again.
The CENTER menu appears on the screen.
3
Move the joystick up or down to adjust the vertical
centering, and left or right to adjust the horizontal
centering.
centering, and left or right to adjust the horizontal
centering.
Adjusting the size of the picture
(SIZE)
(SIZE)
This setting is stored in memory for the current input signal.
1
Press the joystick.
The main MENU appears on the screen.
2
Move the joystick to highlight
SIZE and press the
joystick again.
The SIZE menu appears on the screen.
3
Move the joystick up or down to adjust the vertical
size, and left or right to adjust the horizontal size.
size, and left or right to adjust the horizontal size.
b
RESET
BRIGHTNESS/CONTRAST
26
26
80.0kHz/ 75Hz
the horizontal and vertical frequencies of the
current input signal
current input signal
1-5
12
Adjusting the shape of the picture
(GEOM)
(GEOM)
The GEOM settings allow you to adjust the rotation and 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.
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.
1
Press the joystick.
The main MENU appears on the screen.
2
Move the joystick to highlight
GEOM and press
the joystick again.
The GEOMETRY menu appears on the screen.
3
First move the joystick up or down to select the
desired adjustment item. Then move the joystick left
or right to make the adjustment.
desired adjustment item. Then move the joystick left
or right to make the adjustment.
Enlarging or reducing the picture
(ZOOM)
(ZOOM)
This setting is stored in memory for the current input signal.
1
Press the joystick.
The main MENU appears on the screen.
2
Move the joystick to highlight
ZOOM and press
the joystick again.
The ZOOM menu appears on the screen.
3
Move the joystick left or right to enlarge or reduce
the picture.
the picture.
Note
Adjustment stops when either the horizontal or vertical size reaches its
maximum or minimum value.
maximum or minimum value.
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 joystick.
The main MENU appears on the screen.
2
Move the joystick to highlight
COLOR and press
the joystick again.
The COLOR menu appears on the screen.
3
Move the joystick left or right to select a color
temperature.
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 joystick up or down to select the desired
adjustment item. Then move the joystick left or right to make
the adjustment.
adjustment item. Then move the joystick left or right to make
the adjustment.
1
Adjusting the BIAS (black level)
This changes the brightness of both the dark and light
areas of an image.
areas of an image.
2
Adjusting the GAIN (white level)
This changes the contrast of just the light areas of an
image.
image.
You can adjust the R(Red), G(Green), and B(Blue)
component of the input signal when making changes to items
component of the input signal when making changes to items
1
and
2
.
If you fine tune the color temperature, the new color settings
are stored in memory for each of the three color temperatures
and item
are stored in memory for each of the three color temperatures
and item
3
of the on-screen menu changes as follows:
• [5000K]
t
[1]
• [6500K]
t
[2]
• [9300K]
t
[3]
Select
To
ROTATION
rotate the picture
PINCUSHION
expand or contract the picture sides
PIN BALANCE
shift the picture sides to the left or right
KEYSTONE
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
the top of the screen
COLOR
6500K
9300K
G B I AS
50
B B I AS
50
R GAIN
50
G GAIN
50
B GAIN
50
R B I AS
76
1
13
EN
Adjusting the quality of the picture
(SCREEN)
(SCREEN)
The SCREEN settings allow you to adjust the quality of the
picture by controlling the convergence, moire, and landing.
• If you see red or blue shadows around letters or lines, adjust the
picture by controlling the convergence, moire, and landing.
• If you see red or blue shadows around letters or lines, adjust the
convergence.
• If elliptical or wavy patterns appear on the screen, cancel the
moire.
• If the color is irregular at the corners of the screen, adjust the
landing.
The CANCEL MOIRE and MOIRE ADJUST settings are stored
in memory for the current input signal. All other settings are
stored in memory for all input signals.
in memory for the current input signal. All other settings are
stored in memory for all input signals.
1
Press the joystick.
The main MENU appears on the screen.
2
Move the joystick to highlight
SCREEN and
press the joystick again.
The SCREEN menu appears on the screen.
3
First move the joystick up or down to select the
desired adjustment item. Then move the joystick left
or right to make the adjustment.
desired adjustment item. Then move the joystick left
or right to make the adjustment.
* 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.
Note
The picture may become fuzzy when CANCEL MOIRE is set to ON.
Select
To
H CONVERGENCE
horizontally shift red or blue shadows
V CONVERGENCE
vertically shift red or blue shadows
TOP
V CONVER TOP
vertically shift red or blue shadows at
the top of the screen
the top of the screen
BOT
V CONVER BOT
vertically shift red or blue shadows at
the bottom of the screen
the bottom of the screen
LANDING
select one of the four corners of the
screen
screen
ADJ
LANDING ADJUST
reduce any irregularities in the color
of the corner selected in LANDING
to a minimum
of the corner selected in LANDING
to a minimum
:top left
:bottom left
:top right
:bottom right
CANCEL MOIRE
*
turn the moire cancellation function
ON or OFF
ON or OFF
ADJ (MOIRE ADJUST) appears
in the menu when you select ON
ADJ
MOIRE ADJUST
adjust the degree of moire
cancellation until the moire is at a
minimum
cancellation until the moire is at a
minimum
Select
To
Example of moire
1-6
14
Additional settings (OPTION)
You can manually degauss (demagnetize) the monitor, change the
menu position, set the power saving delay time, and lock the
controls.
menu position, set the power saving delay time, and lock the
controls.
1
Press the joystick.
The main MENU appears on the screen.
2
Move the joystick to highlight
OPTION and press
the joystick again.
The OPTION menu appears on the screen.
3
Move the joystick to highlight the desired
adjustment item.
adjustment item.
Adjust the selected item according to the following
instructions.
instructions.
Degaussing the screen
The monitor is automatically demagnetized when the power is
turned on.
turned on.
To manually degauss the monitor, first move the
joystick up or down to select
joystick up or down to select
(MANUAL DEGAUSS).
Then move the joystick to the right.
The screen is degaussed for about 3 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.
Changing the menu’s position.
Change the menu’s position if it is blocking an image on the
screen.
screen.
To change the menu’s on-screen position, first move
the joystick up or down to select
the joystick up or down to select
(OSD H POSITION)
for horizontal adjustment, or
(OSD V POSITION) for
vertical adjustment. Then move the joystick to the left
or right to shift the on-screen menu.
or right to shift the on-screen menu.
Changing the power saving delay time.
To adjust the time it takes to enter the power saving
mode, first move the joystick up or down to select
mode, first move the joystick up or down to select
(PWR SAVE DELAY). Then move the joystick to the left
or right to select the desired time.
or right to select the desired time.
If you select OFF, the monitor does not enter power saving mode.
See page 15 for more information about the monitor’s power
saving capabilities.
See page 15 for more information about the monitor’s power
saving capabilities.
Locking the controls.
To protect adjustment data by locking the controls, first
move the joystick up or down to select
move the joystick up or down to select
(CONTROL
LOCK). Then move the joystick to the right to select
LOCK.
LOCK.
Only the
1
(power) switch, EXIT, and
(CONTROL LOCK)
of the
OPTION menu will operate. If any other items are
selected, the
mark appears on the screen.
To cancel the control lock
Repeat the procedure above and set
(CONTROL LOCK) to
UNLOCK.
Resetting the adjustments
This monitor has the following three reset methods. Use the
RESET button to reset the adjustments.
RESET button to reset the adjustments.
Resetting a single adjustment item
Use the joystick to select the adjustment item you want to reset,
and press the RESET button.
and press the RESET button.
Resetting all of the adjustment data for the
current input signal
current input signal
Press the RESET button when no menu is displayed on the screen.
Note that the following items are not reset by this method:
• on-screen menu language (page 8)
• on-screen menu position (page 14)
• power saving delay time (page 14)
• control lock (page 14)
Note that the following items are not reset by this method:
• on-screen menu language (page 8)
• on-screen menu position (page 14)
• power saving delay time (page 14)
• control lock (page 14)
Resetting all of the adjustment data for all input
signals
signals
Press and hold the reset button for more than two seconds.
Note
The RESET button does not function when
(CONTROL LOCK)
is set to LOCK.
ZZ...
RESET
15
EN
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 page i 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 – 107 kHz (GDM-
F400) or 30 – 121 kHz (GDM-F500), vertical: 48 – 160 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 page i 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 – 107 kHz (GDM-
F400) or 30 – 121 kHz (GDM-F500), vertical: 48 – 160 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 the monitor is connected to a
computer or video graphics board that is DPMS (Display Power
Management Signaling) compliant, the monitor will
automatically reduce power consumption in three stages as shown
below.
Management Signaling) compliant, the monitor will
automatically reduce power consumption in three stages as shown
below.
* Figures reflect power consumption when no USB compatible
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 the time set
in “Changing the power saving delay time.” (page 14) has elapsed, the
monitor enters the power saving mode.
in “Changing the power saving delay time.” (page 14) has elapsed, the
monitor enters the power saving mode.
To change the power saving delay time
See page 14.
Troubleshooting
Before contacting technical support, refer to this section.
If thin lines appear on your screen
(damper wires)
(damper wires)
The lines you are experiencing on your screen are normal for the
Trinitron monitor and are not a malfunction. These are shadows
from the damper wires used to stabilize the aperture grille and are
most noticeable when the screen’s background is light (usually
white). 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.
Trinitron monitor and are not a malfunction. These are shadows
from the damper wires used to stabilize the aperture grille and are
most noticeable when the screen’s background is light (usually
white). 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 16.
following messages appears on the screen. To solve the problem,
see “Trouble symptoms and remedies” on page 16.
1
The input signal condition
OUT OF SCAN RANGE
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 input, or that no signal is input from
the selected connector (HD15 or BNC).
the selected connector (HD15 or BNC).
2
The connector indicator
This message indicates which connector is receiving the
wrong signal. If there is something wrong with the signal
from both connectors, HD15 and BNC are displayed
alternately.
wrong signal. If there is something wrong with the signal
from both connectors, HD15 and BNC are displayed
alternately.
Power mode
Power
consumption
consumption
*
1
(power)
indicator
normal
operation
operation
≤
160 W (GDM-F500)
≤
140 W (GDM-F400)
green
1 standby
≤
100 W (GDM-F500)
≤
80 W (GDM-F400)
green and orange
alternate
alternate
2 suspend
≤
15 W (GDM-F500)
≤
10 W (GDM-F400)
green and orange
alternate
alternate
3 active off**
≤
1 W (GDM-F500)
≤
3 W (GDM-F400)
orange
power off
0 W
off
Damper wires
INFORMATION
OUT OF SCAN RANGE
INPUT : HD15
1-7
16
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 18) if the following recommendations do not resolve the problem.
Use the self-diagnosis function (page 18) if the following recommendations do not resolve the problem.
Symptom
Check these items
No picture
If the
1
(power) indicator is not lit
• Check that the power cord is properly connected.
• Check that the
• Check that the
1
(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
1
(power) indicator is either orange or
alternating between green and
orange
alternating between green and
orange
• Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets. If you are using the five BNC connectors, connect them in the correct order
(from left to right: Red-Green-Blue-HD-VD) (page 6).
(from left to right: Red-Green-Blue-HD-VD) (page 6).
• Check that the input select setting is correct (page 9).
• Check that the HD15 video input connector’s pins are not bent or pushed in.
• 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.
• Check that the computer’s power is “on.”
• Check that the graphic board is completely seated in the proper bus slot.
• Check that the computer’s power is “on.”
• 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 – 107 kHz (GDM-F400), 30 – 121 kHz (GDM-F500)
Vertical: 48 – 160 Hz
frequency range to the following.
Horizontal: 30 – 107 kHz (GDM-F400), 30 – 121 kHz (GDM-F500)
Vertical: 48 – 160 Hz
If no message is displayed and the
1
(power) indicator is green or flashing
orange
orange
• Use the Self-diagnosis function (page 18).
If using Windows 95/98
• If you replaced an old monitor with this monitor, reconnect the old monitor and do the
following. Install the Windows Monitor Information Disk (page 7) and select this monitor
(“GDM-F400” or “GDM-F500”) from among the Sony monitors in the Windows 95/98
monitor selection screen. If you choose to select “Plug and Play,” connect the monitor to
the computer with the HD15 video signal cable. You cannot use the five BNC connectors.
(“GDM-F400” or “GDM-F500”) from among the Sony monitors in the Windows 95/98
monitor selection screen. If you choose to select “Plug and Play,” connect the monitor to
the computer with the HD15 video signal cable. You cannot use the five BNC connectors.
If using a Macintosh system
• Check that the Macintosh adapter 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, Macintosh 21" Color, etc.) and the frequency of
• Confirm that the graphics mode (VESA, Macintosh 21" Color, etc.) and the frequency of
the input signal are supported by this monitor (page i). 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.
proper range, 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 11).
• Degauss the monitor* (page 14).
• If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire
• Degauss the monitor* (page 14).
• If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire
cancellation effect or set CANCEL MOIRE to OFF (page 13).
17
EN
* 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.
While the monitor is receiving a video signal, press and hold the
joystick for more than three seconds to display this monitor’s
information box.
joystick for more than three seconds to display this monitor’s
information box.
If the problem persists, call your authorized Sony dealer and give
the following information.
• Model name: GDM-F400, GDM-F500
• Serial number
• Name and specifications of your computer and graphics board.
the following information.
• Model name: GDM-F400, GDM-F500
• Serial number
• Name and specifications of your computer and graphics board.
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
• Press the ASC button (page 9).
• Adjust the size (page 11) or centering (page 11). Note that some video modes do not fill
• Adjust the size (page 11) or centering (page 11). Note that some video modes do not fill
the screen to the edges.
Edges of the image are curved
• Adjust the geometry (page 12).
Wavy or elliptical pattern (moire)
is visible
is visible
• Cancel the moire (page 13).
x
Problems caused by the connected computer or other equipment
• Change your desktop pattern.
Color is not uniform
• Degauss the monitor* (page 14). 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.
• Adjust the landing (page 13).
White does not look white
• Adjust the color temperature (page 12).
• Check that the five BNC connectors are connected in the correct order (from left to right:
• Check that the five BNC connectors are connected in the correct order (from left to right:
Red-Green-Blue-HD-VD) (page 6).
Letters and lines show red or blue
shadows at the edges
shadows at the edges
• Adjust the convergence (page 13).
Monitor buttons do not operate
• If the control lock is set to LOCK, set it to UNLOCK (page 14).
USB peripherals do not function
• Check that the appropriate USB connectors are securely connected (page 8).
• Check that the
• Check that the
1
(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.
settings. Then reconnect the keyboard or mouse to the monitor.
• 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.
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 three seconds.
Symptom
Check these items
SER NO : 1234567
MODEL : GDM F500
MANUFACTURED : 1998-52
INFORMATION
Example
Click on the first or last page to see other GDM-F400 / GDM-F400T9 service manuals if exist.