DOWNLOAD Sony GDM-F400 / GDM-F400T9 Service Manual ↓ Size: 4.82 MB | Pages: 58 in PDF or view online for FREE

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................................................................. 1-1

2-1.

Cabinet Removal ............................................... 2-1

2-2.

A Board Removal .............................................. 2-1

2-3.

AC Inlet and Rear Shield Removal .................. 2-2

2-4.

D Board Removal .............................................. 2-2

2-5.

Service Position .................................................. 2-3

2-6.

US Board Removal ............................................. 2-3

2-7.

Bezel and H Board Removal .............................. 2-4

2-8.

Picture Tube Removal ....................................... 2-5

2-9.

Harness Location ................................................ 2-6

............. 3-1

..................................................... 4-1

5-1.

Block Diagrams .................................................. 5-1

5-2.

Frame Shcematic Diagram ................................. 5-5

5-3.

Circuit Boards Location ..................................... 5-7

5-4.

Schematic Diagrams and Printed Wiring

Boards ................................................................. 5-8

(1)

Schematic Diagrams of US Board .................... 5-9

(2)

Schematic Diagrams of A Board ...................... 5-11

(3)

Schematic Diagram of H Board ........................ 5-14

(4)

Schematic Diagram of D Board ........................ 5-15

5-5.

Semiconductors ................................................. 5-29

6-1.

Chassis ............................................................... 6-1

6-2.

Picture Tube ...................................................... 6-2

6-3.

Packing Materials .............................................. 6-3

............................ 7-1

1-1

5

See the pages in parentheses for further details. GDM-F500 is 
used for illustration purposes throughout this manual.

1

This button resets the adjustments to the factory settings.

2

This button automatically adjusts the size and centering of the 
picture.

3

This button selects the HD15 or BNC video input signal. The 
input signal and corresponding input indicator change each 
time you press this button.

4

The joystick is used to display the menu and make 
adjustments to the monitor, including brightness and contrast 
adjustments.

5

1

This button turns the monitor on and off. The power indicator 
lights up in green when the monitor is turned on, and either 
flashes in green and orange, or lights up in orange when the 
monitor is in power saving mode.

6

This connector provides AC power to the monitor.

7

Use this connector to link the monitor to a USB compliant 
computer.

8

Use these connectors to link USB peripheral devices to the 
monitor.

9

This connector inputs RGB video signals (0.700 Vp-p, 
positive) and sync signals.

* DDC (Display Data Channel) is a standard of VESA.

q;

This connector inputs RGB video signals (0.700 Vp-p, 
positive) and sync signals.

(HD15)

(BNC)

1

Red

2

Green
(Composite 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

 

4

 

• Use the supplied power cord. If you use a different power cord, 

be sure that it is compatible with your local power supply.

 

If you do not use the appropriate cord, this monitor will not 
conform to mandatory FCC standards.

• Before disconnecting the power cord, wait at least 30 seconds 

after turning off the power to allow the static electricity on the 
screen’s surface to discharge.

• After the power is turned on, the screen is demagnetized 

(degaussed) for about 3 seconds. This generates a strong 
magnetic field around the screen which may affect data stored 
on magnetic tapes and disks placed near the monitor. Be sure to 
keep magnetic recording equipment, tapes, and disks away 
from the monitor.

 

Do not install the monitor in the following places:
• on surfaces (rugs, blankets, etc.) or near materials (curtains, 

draperies, etc.) that may block the ventilation holes

• near heat sources such as radiators or air ducts, or in a place 

subject to direct sunlight

• in a place subject to severe temperature changes
• in a place subject to mechanical vibration or shock
• on an unstable surface
• near equipment which generates magnetism, such as a 

transformer or high voltage power lines

• near or on an electrically charged metal surface

 

• Clean the 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 screen’s 
coating.

• 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.

• 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 
benzene.

 

When you transport this monitor for repair or shipment, use the 
original carton and packing materials.

 

This monitor can be adjusted within the angles shown below. To 
turn the monitor vertically or horizontally, hold it at the bottom 
with both hands.

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

90˚

5˚

90˚

12˚

GDM-F400

90˚

5˚

90˚

15˚

GDM-F500

1-2

 

6

 

Before using your monitor, check that the following accessories 
are included in your carton:
• Power cord (1)
• HD15 video signal cable (1)
• USB cable (1)
• Macintosh adapter (1)
• Windows Monitor Information Disk (1)
• Warranty card (1)
• Notes on cleaning the screen’s surface (1)
• This instruction manual (1)

 

Turn off the monitor and computer before connecting.

 

x

 

This monitor uses the No.9 pin in the video signal connector for Plug & 
Play (DDC2AB or DDC2B+) compatibility. See page 5 for the location of 
the No.9 pin.
• If your computer accepts the No.9 pin, use the supplied HD15 video 

signal cable.

• If your computer does not accept the No.9 pin, please consult your 

dealer for advice on obtaining an HD15 adapter.

 

x

 

* Connect the supplied Macintosh adapter to the computer before 

connecting the cable. This adapter is compatible with Macintosh LC, 
Performa, Quadra, Power Macintosh and Power Macintosh G3 series 
computers. Macintosh II series and some older versions of PowerBook 
models may need an adapter with micro switches (not supplied).

 

x

 

* Connect the cables from left to right in the following order: Red-Green-

Blue-HD-VD.

 

• Do not touch the pins of the video cable connector as this might bend 

the pins.

• Plug & Play (DDC) does not apply to the five BNC connectors. If you 

want to use Plug & Play, connect your computer to the HD15 connector 
using the supplied video signal cable.

(HD15)

(BNC)

HD15 video signal 
cable (supplied)

to video output

IBM PC/AT or compatible 
computer

to HD15

(HD15)

(BNC)

Use the supplied Macintosh adapter.

to HD15

Macintosh adapter (supplied)

*

Macintosh or 
compatible computer

to video 
output

HD15 video signal 
cable (supplied)

(HD15)

(BNC)

to VIDEO IN R/G/B

to SYNC IN 
HD/VD

Refer to the preceding 
examples to connect to your 
computer.

video signal cable 
(SMF-400, not supplied)

*

 

7

 

With the monitor and computer switched off, first connect the 
power cord to the monitor, then connect it to a power outlet.

 

First turn on the monitor, then turn on the computer.

The installation of your monitor is complete.
If necessary, use the monitor’s controls to adjust the picture.

 

• Check that the monitor is correctly connected to the computer.
• If NO INPUT SIGNAL appears on the screen, try changing the 

input signal (page 9), and confirm that your computer’s graphic 
board is completely seated in the correct bus slot. 

• If you are replacing an old monitor with this model and 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 30 – 107 kHz (GDM-F400) or 
30 – 121 kHz (GDM-F500), and the vertical frequency is 
between 48 – 160 Hz.

For more information about the on-screen messages, see “Trouble 
symptoms and remedies” on page 16.

 

To maximize the potential of your monitor, install the new model 
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. 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.

 

Monitor setup in Windows NT4.0 is different from Windows 95/98 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.

 

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.

(HD15)

(BNC)

to AC IN

to a power outlet

power cord (supplied)

1-3

 

8

 

Your monitor has one upstream and four downstream USB 
connectors. They provide a fast and easy way to connect USB 
compliant peripheral devices (such as keyboards, mice, printers 
and scanners) to your computer using a standardized USB cable.
To use your monitor as a hub for your peripheral devices, connect 
the USBs as illustrated below.

 

If a message appears on your screen, follow the on-screen instructions 
and select Generic USB Hub as the default setting.

 

• Not all computers and /or operating systems support USB 

configurations. Check your computer’s instruction manual to see if you 
can connect USB devices.

• In most cases, USB driver software needs to be installed on the host 

computer. Refer to the peripheral device’s instruction manual for 
further details.

• The monitor functions as a USB hub as long as the monitor is either 

“on” or in power saving mode.

• 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. First connect the keyboard and mouse directly to the 
computer and set up the USB compliant devices. Then connect them to 
this monitor.

• Do not lean on the monitor when plugging in the USB cables. The 

monitor may suddenly shift and cause injury.

 

English, French, German, Spanish, Italian, and Japanese versions 
of the on-screen menus are available. The default setting is 
English.

 

See page 11 for more information on using the joystick.

 

• ENGLISH
• FRANÇAIS: French
• DEUTSCH: German
• ESPAÑOL: Spanish
• ITALIANO: Italian
•

: Japanese 

 

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.

 

Press the RESET button while the LANGUAGE menu is displayed on the 
screen.

to USB compliant 
peripheral devices

to a USB compliant 
computer

to USB compliant 
peripheral devices

MENU

EXIT

CENTER

SIZE

GEOM

COLOR

LANG

ZOOM

SCREEN

OPTION

MENU

ENGLISH
FRANÇAIS
DEUTSCH
ESPAÑOL
I TA LIANO

LANGUAGE

 

9

 

You can connect two computers to this monitor using the HD15 
and BNC connectors. To switch between the two computers, use 
the INPUT button.

 

The input signal and corresponding input indicator change each 
time you press this button.

 

• If no signal is input to the selected connector, the monitor automatically 

switches to the other connector.

• If you restart the computer you want to view, or that computer is in 

power saving mode, the monitor may automatically switch to the other 
connector’s signal. If this happens, manually select the desired signal 
using the INPUT button.

 

You can easily adjust the picture to fill the screen by pressing the 
ASC (auto sizing and centering) button.

 

The picture automatically fills the screen.

 

• This function is intended for use with a computer running Windows or 

similar graphic user interface software that provides a full-screen 
picture. It may not work properly if the background color is dark or if 
the input picture does not fill the screen to the edges (such as an MS-
DOS prompt).

• Pictures with an aspect ratio of 5:4 (resolution: 1280 

 

×

 

 1024, 1800 

 

×

 

 

1440*) are displayed at their actual resolution and do not fill the screen 
to the edges.

• The screen may go blank for a few seconds when the ASC button is 

pressed. This is not a malfunction.

* GDM-F500 only