DOWNLOAD Sony HMD-A400 (serv.man4) Service Manual ↓ Size: 2.61 MB | Pages: 67 in PDF or view online for FREE

– 5 –

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

2-1.

Bucket Assembly Removal ................................. 2-1

2-2.

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

2-3.

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

2-4.

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

2-5.

H Board Removal ................................................. 2-4

2-6.

Picture Tube Removal .......................................... 2-4

2-7.

Harness Location .................................................. 2-5

............. 3-1

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

5-1.

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

5-2.

Frame Schematic Diagram .................................. 5-5

5-3.

Circuit Boards Location ...................................... 5-6

5-4.

Schematic Diagrams and Printed Wiring Boards .. 5-7

(1)

Schematic Diagram of H Board ......................... 5-8

(2)

Schematic Diagram of A Board ......................... 5-9

(3)

Schematic Diagrams of

D (a, b, c, d,

 

e,

 

f) Board .................... 5-15

5-5.

Semiconductors .................................................. 5-27

6-1.

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

6-2.

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

6-3.

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

............................ 7-1

 

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 5 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.

 

Insert the supplied stand into the groove to adjust the angle of the 
monitor. You can use the stand in either the vertical or horizontal 
position. If you do not need the stand for this purpose, you can use 
it as a convenient CD rack.

The equipment should be installed near an easily accessible 
outlet.

Example of plug types

for 100 to 120 V AC

1-1

 

5

 

See the pages in parentheses for further details.

 

1

 

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

 

2

 

!

 

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.

 

3

 

This connector provides AC power to the monitor.

 

4

 

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

 

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

 

5

 

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

 

6

 

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

 

1

Red

2

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)*

1 2

3 4 5

8

7

6

11 12 13 14 15

10

9

1-2

 

6

 

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

 

Turn off the monitor and computer before connecting.

 

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

 

x

 

x

 

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, 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 – 86 kHz, and the vertical 
frequency is between 48 – 120 Hz.

For more information about the on-screen messages, see “Trouble 
symptoms and remedies” on page 13.

 

This monitor complies with the “DDC” Plug & Play standard and 
automatically detects all the monitor’s information. No specific driver 
needs to be installed to the computer.
If you connect the monitor to your PC, and then boot your PC for the first 
time, the setup Wizard may be displayed on the screen. Click on “Next” 
several times according to the instructions from the Wizard until the Plug 
& Play Monitor is automatically selected so that you can use this monitor.

 

Monitor setup in Windows NT4.0 does not use the display driver. Refer 
to the Windows NT4.0 instruction manual for further details on adjusting 
the resolution, refresh rate, and number of colors.

to video output

IBM PC/AT or 
compatible computer

You will need a Macintosh adapter (not supplied).

Macintosh adapter (not supplied)

Macintosh or 
compatible 
computer

to video output

to AC IN

to a power outlet

power cord (supplied)

 

7

 

Your monitor has one upstream USB connector (on the rear 
panel) and four downstream USB connectors (two on both the left 
and right sides). 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, Italian, Spanish, Dutch, Swedish, 
Russian and Japanese versions of the on-screen menus are 
available. The default setting is English.

 

See page 9 for more information on using the control button.

 

m

 

M

 

m

 

M

 

<

 

,

 

• ENGLISH
• FRANÇAIS: French
• DEUTSCH: German
• ITALIANO: Italian
• ESPAÑOL: Spanish
• NEDERLANDS: Dutch
• SVENSKA: Swedish
•

: Russian

•

: Japanese 

 

Press the center of the control button 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.

 

See “Resetting the adjustments (RESET)” on page 11.

to USB compliant 
peripheral devices

to a USB compliant 
computer

to USB compliant 
peripheral devices

EX I T
P I CTURE E F F ECT

S I Z E / CENT ER
GEOME TRY

SCREEN

CONVERGENCE

COLOR

RESE T

SE L ECT

L ANGUAGE / I NFORMA T

N

O

I

MENU

SVENSKA

ESPAÑOL

NEDER L AN S

D

DEUT SCH

I T A L I ANO

ENGL I SH

FRANÇA I S

SE L ECT

EX I T

LA

A

NG

GE

U

/ I NFORMAT I ON

1-3

 

8

 

You can make numerous adjustments to your monitor using the 
on-screen menu.

 

Press the center of the control button to display the main MENU 
on your screen. See page 9 for more information on using the 
control button.

Use the control button to select one of the following menus.

 

x

 

The horizontal and vertical frequencies of the current input signal 
are displayed under the BRIGHTNESS/CONTRAST menu. If the 
signal matches one of this monitor’s factory preset modes, the 
resolution is also displayed.

 

1

 

Select EXIT to close the menu.

 

2

 

Select the PICTURE 
EFFECT menu to choose the 
most appropriate preset 
picture mode.

 

3

 

Select the SIZE/CENTER 
menu to adjust the picture’s 
centering, size or zoom.

 

4

 

Select the GEOMETRY 
menu to adjust the picture’s 
rotation and shape.

 

5

 

Select the CONVERGENCE 
menu to adjust the picture’s 
horizontal and vertical 
convergence.

EX I T
P I CTURE E F F ECT

S I Z E / CENT ER
GEOME TRY

SCREEN

CONVERGENCE

COLOR

RESE T

SE L ECT

L ANGUAGE / I NFORMA T

N

O

I

MENU

SE L ECT

EX I T

DYNAM I C

S T ANDARD

P I CTURE EFFECT

H - C E N T ER

2 6

SE L ECT

EX I T

S I ZE / CENTER

SE L ECT

EX I T

RO T A T I ON

2 6

GEOMETRY

SE L ECT

EX I T

2 6

CONVERGENCE

 

6

 

Select the SCREEN menu to 
degauss the screen and adjust 
the moire cancellation level.

 

7

 

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.

 

8

 

Select the LANGUAGE/
INFORMATION menu to 
choose the on-screen menu’s 
language and display this 
monitor’s information box.

 

9

 

Select the RESET menu to 
reset the adjustments.

D EGA U S S

ON

SE L ECT

EX I T

SCREEN

K

K

K

R

5 0

G

5 0

B

5 0

SE L ECT

EX I T

COLOR

5000

6500

9300

USER

SVENSKA

ESPAÑOL

NEDER L AN S

D

DEUT SCH

I T A L I ANO

ENGL I SH

FRANÇA I S

SE L ECT

EX I T

LA

A

NG

GE

U

/ I NFORMAT I ON

R E S E T

MOD E

A L L

EX I T

RESET

2 6

2 6

H : 6 8 . 7 k H z

V : 8 5 H z

1 0 2 4 X 7 6 8

BR I GHTNESS / CONTRAST

the horizontal 
and vertical 
frequencies of
the current 
input signal

the resolution 
of the current 
input signal

 

9

 

x

 

Press the center of the control button to display the main 
MENU on your screen.

 

Highlight the desired menu by moving the control button up 
(

 

M

 

), down (

 

m

 

), and left (

 

<

 

) or right (

 

,

 

).

 

Move the control button left (

 

<

 

) or right (

 

,

 

) to make the 

adjustment.

 

Press the center of the control button 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.

 

x

 

You can reset the adjustments using the RESET menu. See 
page 11 for more information on resetting the adjustments.

 

Brightness and contrast adjustments are made using a separate 
BRIGHTNESS/CONTRAST menu.
These settings are stored in memory for all input signals.

 

The BRIGHTNESS/CONTRAST menu appears on the 
screen.

 

m

 

M

 

<

 

,

 

6

 

The menu automatically disappears after about 3 seconds.

 

The PICTURE EFFECT feature allows you to select the most 
appropriate picture mode from among two preset modes 
maximum performance.

 

The main MENU appears on the screen.

 

The PICTURE EFFECT menu appears on the screen.

 

m

 

M

 

STANDARD

 

images with high contrast and 
brightness. Choose this mode for 
commonly used applications, such as 
spreadsheets, word processing, 
E-mail, or WEB surfing.

 

DYNAMIC

 

extremely vivid and photo-realistic 
images. Brighter than “STANDARD” 
mode, choose this for intense graphic 
applications such as games, DVD 
playback, or entertainment software.

2 6

2 6

H : 6 8 . 7 k H z

V : 8 5 H z

1 0 2 4 X 7 6 8

BR I GHTNESS / CONTRAST