Sony CPD-G420 (serv.man2) Service Manual ▷ View online
CPD-G420
– 5 –
TABLE OF CONTENTS
Section
Title
Page
1.
GENERAL
............................................................... 1-1
2.
DISASSEMBLY
2-1.
Cabinet Removal .............................................. 2-1
2-2.
A1 Board (C BLOCK) Removal ..................... 2-2
2-3.
A1 Board, US Board Removal ........................ 2-2
2-4.
Bezel Assembly, H1 Board Removal .............. 2-3
2-5.
D Board Removal ............................................. 2-3
2-6.
Service Position ................................................. 2-4
2-7.
Picture Tube Removal ....................................... 2-5
2-8.
Harness Location .............................................. 2-6
3.
SAFETY RELATED ADJUSTMENT
........... 3-1
4.
ADJUSTMENTS
................................................... 4-1
5.
DIAGRAMS
5-1.
Block Diagrams ................................................. 5-1
5-2.
Frame Schematic Diagram ................................ 5-7
5-3.
Circuit Boards Location .................................... 5-9
5-4.
Schematic Diagrams and Printed Wiring
Boards ................................................................. 5-9
(1)
Schematic Diagram of A1 Board ...................... 5-11
(2)
Schematic Diagram of US Board ...................... 5-15
(3)
Schematic Diagram of DA Board ..................... 5-17
(4)
Schematic Diagram of N Board ........................ 5-19
(5)
Schematic Diagrams of
D (a, b, c) Board ........................................ 5-21
(6)
Schematic Diagram of H1 Board ....................... 5-29
5-5. Semiconductors ................................................. 5-31
6-1. EXPLODED VIEWS < NH model >
6-1-1. Chassis < NH model > ...................................... 6-1
6-1-2. Picture Tube < NH model > ............................. 6-2
6-1-3. Packing Materials < NH model > ..................... 6-3
6-2. EXPLODED VIEWS < AEP model >
6-2-1. Chassis
#3
< AEP model > .............................. 6-4
6-2-2. Picture Tube
#3
< AEP model > ...................... 6-5
6-2-3. Packing Materials
#3
< AEP model > .............. 6-6
7.
ELECTRICAL PARTS LIST
........................... 7-1
SECTION 1
GENERAL
1-1
The operating instructions mentioned here are partial abstracts
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remain as in the manual.
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remain as in the manual.
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.
• 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.
screen’s surface to discharge.
• After the power is turned on, the screen is demagnetized
(degaussed) for about a few 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.
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.
Installation
Do not install the monitor in the following places:
• on surfaces (rugs, blankets, etc.) or near materials (curtains,
• 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
• 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
Maintenance
• 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.
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.
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.
of abrasive pad, scouring powder or solvent, such as alcohol or
benzene.
Transportation
When you transport this monitor for repair or shipment, use the
original carton and packing materials.
original carton and packing materials.
Use of the tilt-swivel
This monitor can be adjusted within the angles shown below. To
find the center of the monitor’s turning radius, align the center of
the monitor’s screen with the centering dot on the stand.
Hold the monitor at the bottom with both hands when you turn it
horizontally or vertically. Be careful not to pinch your fingers at
the back of the monitor when you tilt the monitor up vertically.
find the center of the monitor’s turning radius, align the center of
the monitor’s screen with the centering dot on the stand.
Hold the monitor at the bottom with both hands when you turn it
horizontally or vertically. Be careful not to pinch your fingers at
the back of the monitor when you tilt the monitor up vertically.
The equipment should be installed near an easily accessible
outlet.
outlet.
Example of plug types
for 100 to 120 V AC
for 200 to 240 V AC
for 240 V AC only
90˚
5˚
90˚
15˚
Centering dot
5
US
Identifying parts and controls
See the pages in parentheses for further details.
1
INPUT (input) switch (page 9)
This switch selects the INPUT 1 (video input 1 connector:
y
1) or INPUT 2 (video input 2 connector:
y
2).
2
PICTURE EFFECT button (page 11)
This button is used to change the preset picture effects’
modes.
modes.
3
MENU button (page 10)
This button is used to display or close the menu.
4
Control button (OK,
M
/
m
) (page 11)
This button is used to make adjustments to the monitor and
call up the CONTRAST menu directly.
call up the CONTRAST menu directly.
5
!
(power) switch and indicator (pages 7, 18, 22)
This button turns the monitor on and off. The power indicator
lights up in green when the monitor is turned on, and lights up
in orange when the monitor is in power saving mode.
lights up in green when the monitor is turned on, and lights up
in orange when the monitor is in power saving mode.
6
Video input 2 connector (BNC) (page 6)
This connector inputs RGB video signals (0.700 Vp-p,
positive) and sync signals.
positive) and sync signals.
7
Video input 1 connector (HD15) (page 6)
This connector inputs RGB video signals (0.700 Vp-p,
positive) and sync signals.
positive) and sync signals.
* DDC (Display Data Channel) is a standard of VESA.
8
USB (universal serial bus) downstream connectors
(page 8)
(page 8)
Use these connectors to link USB peripheral devices to the
monitor.
monitor.
9
USB (universal serial bus) upstream connector
(page 8)
(page 8)
Use this connector to link the monitor to a USB compliant
computer.
computer.
q;
AC IN connector (page 7)
This connector provides AC power to the monitor.
AC IN
2
R
G
B
HD
VD
1
INPUT
PICTURE EFFECT
MENU
OK
1
2
Front
Rear
rear side
forward side
forward side
rear side
5 4
3 2 1
6
7
8
9
10
11
12
13
14
15
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
Pin No.
Signal
9
DDC + 5V*
10
Ground
11
ID (Ground)
12
Bi-Directional
Data (SDA)*
Data (SDA)*
13
H. Sync
14
V. Sync
15
Data Clock
(SCL)*
(SCL)*
1-2
6
Setup
Before using your monitor, check that the following accessories
are included in your carton:
are included in your carton:
• Power cord (1)
• HD15 video signal cable (1)
• USB cable (1)
• Exclusive Power Mac G3/G4 adapter (1)
• Warranty card (1)
• Notes on cleaning the screen’s surface (1)
• This instruction manual (1)
• HD15 video signal cable (1)
• USB cable (1)
• Exclusive Power Mac G3/G4 adapter (1)
• Warranty card (1)
• Notes on cleaning the screen’s surface (1)
• This instruction manual (1)
Step 1: Connect your monitor to
your computer
Turn off the monitor and computer before connecting.
Notes
• Do not touch the pins of the video signal cable connector as this might
bend the pins.
• When connecting the video signal cable, check the alignment of the
HD15 connector. Do not force the connector in the wrong way or the
pins might bend.
pins might bend.
x
Connecting to an IBM PC/AT or compatible
computer
computer
x
Connecting to a Macintosh or compatible
computer
computer
* Connect the supplied adapter to the computer before connecting the
cable. This adapter is compatible only with Power Mac G3/G4
computers that have 3 rows of pins. If you connect to the other version
of Macintosh series computer that has 2 rows of pins, you will need a
different adapter (not supplied).
computers that have 3 rows of pins. If you connect to the other version
of Macintosh series computer that has 2 rows of pins, you will need a
different adapter (not supplied).
x
Connecting to the 5 BNC connectors
* Connect the cables from left to right in the following order: Red-Green-
Blue-HD-VD.
Note
Plug & Play (DDC) does not apply to the 5 BNC connectors. If you want
to use Plug & Play, connect your computer to the connector using the
supplied video signal cable.
to use Plug & Play, connect your computer to the connector using the
supplied video signal cable.
AC IN
1
2
R
G
B
HD
VD
video signal cable
(supplied)
(supplied)
IBM PC/AT or compatible
computer
computer
to HD15
to video output
AC IN
1
2
R
G
B
HD
VD
Use the supplied exclusive Power Mac G3/G4 adapter.
to HD15
exclusive Power
Mac G3/G4 adapter
(supplied)
Mac G3/G4 adapter
(supplied)
*
Power Mac G3/G4
video signal cable
(supplied)
(supplied)
to video output
AC IN
1
2
R
G
B
HD
VD
to R/G/B input
to HD/VD
input
input
Refer to the preceding
examples to connect to your
computer.
examples to connect to your
computer.
video signal cable
(SMF-400, not supplied)
(SMF-400, not supplied)
*
7
US
Step 2: Connect the power cord
With the monitor and computer switched off, first connect the
power cord to the monitor, then connect it to a power outlet.
power cord to the monitor, then connect it to a power outlet.
Step 3: Turn on the monitor and
computer
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.
If necessary, use the 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 SIGNAL appears on the screen, try changing the input
• If NO SIGNAL appears on the screen, try changing the input
signal (page 9), and confirm that your computer’s graphics
board is completely seated in the correct bus slot.
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 graphics board so that the
horizontal frequency is between 30 – 130 kHz (CPD-G520),
30 – 110 kHz (CPD-G420) and the vertical frequency is
between 48 – 170 Hz.
monitor. Then adjust the computer’s graphics board so that the
horizontal frequency is between 30 – 130 kHz (CPD-G520),
30 – 110 kHz (CPD-G420) and the vertical frequency is
between 48 – 170 Hz.
For more information about the on-screen messages, see “Trouble
symptoms and remedies” on page 20.
symptoms and remedies” on page 20.
Setup on various OS (Operating System)
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.
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.
AC IN
1
2
R
G
B
HD
VD
to AC IN
to a power outlet
power cord (supplied)
1-3
8
Connecting Universal Serial Bus
(USB) compliant peripherals
(USB) compliant peripherals
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.
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.
1
Turn on the monitor and computer.
2
Connect your computer to the square upstream
connector using the supplied USB cable.
connector using the supplied USB cable.
For customers using Windows
If a message appears on your screen, follow the on-screen instructions
and select Generic USB Hub as the default setting.
and select Generic USB Hub as the default setting.
3
Connect your USB compliant peripheral devices to
the rectangular downstream USB connectors.
the rectangular downstream USB connectors.
Notes
• Not all computers and/or operating systems support USB
configurations. Check your computer’s instruction manual to see if you
can connect USB devices.
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.
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.
function. First connect the keyboard and mouse directly to the
computer and set up the USB compliant devices. Then connect them to
this monitor.
Selecting the on-screen menu
language (LANGUAGE)
language (LANGUAGE)
English, French, German, Spanish, Italian, Dutch, Swedish,
Russian and Japanese versions of the on-screen menus are
available. The default setting is English.
Russian and Japanese versions of the on-screen menus are
available. The default setting is English.
1
Press the MENU button.
The menu appears on the screen.
2
Move the control button up or down to highlight
OPTION and press the control button.
3
Move the control button up or down to highlight
LANGUAGE and press the control button.
4
Move the control button up or down until the desired
language appears on the screen. Then press the
control button to select the language.
language appears on the screen. Then press the
control button to select the language.
Each time you move the control button up or down, the
language can be selected appears cyclically.
• ENGLISH
• FRANÇAIS: French
• DEUTSCH: German
• ESPAÑOL: Spanish
• ITALIANO: Italian
• NEDERLANDS: Dutch
• SVENSKA: Swedish
•
language can be selected appears cyclically.
• ENGLISH
• FRANÇAIS: French
• DEUTSCH: German
• ESPAÑOL: Spanish
• ITALIANO: Italian
• NEDERLANDS: Dutch
• SVENSKA: Swedish
•
: Russian
•
: Japanese
To close the menu
Press the MENU button. If no buttons are pressed, the menu closes
automatically after about 45 seconds.
automatically after about 45 seconds.
To reset to English
Select ENGLISH in step 4 above.
to USB compliant
peripheral devices
peripheral devices
to a USB compliant
computer
computer
MENU
CONTRAST
CONTRAST
50
/
I
BR GHT
1 0 2 4 x 7 6 8 / 8 5 H z
b
OK
MENU
E
OPT ON
I
CONTROL
LOCK
LOCK
OFF
ON
X I T :
b
b
OK
OK
OPT ON
I
LANGUAGE
ENGL I SH
MENU
EX I T :
b
b
OK
9
US
Selecting the input signal
You can connect two computers to this monitor using the video
input 1 (HD15) and video input 2 (BNC) connectors. To select
one of the two computers, use the INPUT switch.
input 1 (HD15) and video input 2 (BNC) connectors. To select
one of the two computers, use the INPUT switch.
Move the INPUT switch.
The selected connector appears on the screen for 3 seconds.
“INPUT 1”: HD15 or “INPUT 2”: BNC appears on the screen.
Note
If no signal is input to the selected connector, NO SIGNAL appears on the
screen. After a few seconds, the monitor enters the power saving mode. If
this happens, switch to the other connector.
screen. After a few seconds, the monitor enters the power saving mode. If
this happens, switch to the other connector.
INPUT
1
2
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