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Model
CPD-520GS CPD-520GST CPD-520GST9
Pages
55
Size
5.35 MB
Type
PDF
Document
Service Manual
Brand
Device
Monitor / S/M CPD520GS/520GST/520GST9 99
File
cpd-520gs-cpd-520gst-cpd-520gst9.pdf
Date

Sony CPD-520GS / CPD-520GST / CPD-520GST9 Service Manual ▷ View online

CPD-520GS/520GST/520GST9
– 5 –
Note: Hand degauss must be used on stand-by or power-off condition.
This model has an automatic earth magnetism correction function by using an earth
magnetism sensor and a LCC coil. When using a hand degauss while monitor (LCC
coil) is being operated, it sometimes gets magnetized, and the system may not work
properly as a result.
TABLE  OF  CONTENTS
Section
Title
Page
1. GENERAL
................................................................. 1-1
2. DISASSEMBLY
2-1.
Cabinet Removal ............................................... 2-1
2-2.
D Board Removal .............................................. 2-1
2-3.
G Board Removal .............................................. 2-2
2-4.
A2 Board Removal ............................................ 2-2
2-5.
L2 Board Removal ............................................ 2-3
2-6.
I/O TERMINAL Board Assy Removal ............. 2-3
2-7.
Service Position .................................................. 2-4
2-8.
H5, H6 and J Boards Removal .......................... 2-4
2-9.
Picture Tube Removal ....................................... 2-5
2-10. 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 Shcematic Diagram ................................. 5-7
5-3.
Circuit Boards Location ..................................... 5-9
5-4.
Schematic Diagrams and Printed Wiring
Boards ................................................................. 5-9
(1)
Schematic Diagram of D Board ........................ 5-13
(2)
Schematic Diagrams of G, H5, H6, J and
L2 Boards .......................................................... 5-17
(3)
Schematic Diagram of A2 Board ...................... 5-24
5-5.
Semiconductors ................................................. 5-29
6. EXPLODED  VIEWS
6-1.
Chassis ............................................................... 6-1
6-2.
Picture Tube ...................................................... 6-2
6-3.
Packing Materials ............................................... 6-3
7. ELECTRICAL  PARTS  LIST
............................ 7-1
SECTION  1
GENERAL
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.
1-1
4
Getting Started
Warning on power connection
• Use an appropriate power cord for your local power
supply.
For the customers in the U.S.A.
If you do not use the appropriate cord, this monitor will
not conform to mandatory FCC standards.
Examples of plug types
• Before disconnecting the power cord, wait at least 30
seconds after turning off the power to allow the static
electricity on the CRT display surface to discharge.
• After the power has been turned on, the CRT is
demagnetized (degaussed) for about 3 seconds. This
generates a strong magnetic field around the metal frame,
which may affect the data stored on magnetic tapes and
disks near the bezel. Place magnetic recording equipment,
tapes and disks away from this monitor.
The outlet should be installed near the equipment
and be easily accessible.
Precautions
Installation
• Prevent internal heat build-up by allowing adequate air
circulation. Do not place the monitor on surfaces (rugs,
blankets, etc.) or near materials (curtains, draperies) that
may block the ventilation holes.
• Do not install the monitor near heat sources such as
radiators or air ducts, or in a place subject to direct
sunlight, excessive dust, mechanical vibration or shock.
• Do not place the monitor near equipment which generates
magnetism, such as a transformer or high voltage power
lines.
Maintenance
• 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 benzine.
• 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 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.
Transportation
When you transport this monitor for repair or shipment, use
the original carton and packing materials.
Use of the Tilt-Swivel
With the tilt-swivel, this monitor can be adjusted to the
desired angle within 180° horizontally and 20° vertically.
To turn the monitor vertically and horizontally, hold it at
the bottom with both hands as illustrated below.
for 100 to 120 V AC
for 200 to 240 V AC
Getting Started
90
°
90
°
15
°
5
°
5
Getting Started
Getting Started
F
EN
ES
C
Identifying Parts and Controls
See the pages in parentheses for further details.
Front
RESET (reset) button (page 17)
Resets the adjustments to the factory settings.
ASC (auto sizing and centering) button
(page 7)
Automatically adjusts the size and centering of the
images.
INPUT (input) button and HD15/BNC
indicators (page 8)
Selects the HD15 or 5BNC video input signal. Each time
you press this button, the input signal and
corresponding indicator alternate.
MENU (menu) button (pages 8 -17, 19)
Displays the MENU OSD.
5 > (contrast) (?//) buttons (pages 8 – 17,
22)
Adjust the contrast.
Function as the (?//) buttons when adjusting other
items.
6 ¨ (brightness) (./>) buttons (pages  8 –
17)
Adjust the picture brightness.
Function as the (./>) buttons when adjusting other
items.
7 u (power) switch and indicator (pages 19,
22)
Turns the monitor on or off.
The 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.
Pin No.
1
2
3
4
5
6
7
Pin No.
8
9
10
11
12
13
14
15
Rear
AC IN connector
Provides AC power to the monitor.
Video input 1 connector (HD15)
Inputs RGB video signals (0.700 Vp-p, positive) and
SYNC signals.
*
Display Data Channel (DDC) Standard of VESA
!º Video input 2 connector (5 BNC)
Inputs RGB video signals (0.700 Vp-p, positive) and
SYNC signals.
Signal
Red
Green
(Composite
Sync on Green)
Blue
ID (Ground)
DDC Ground*
Red Ground
Green Ground
Signal
Blue Ground
DDC + 5V*
Ground
ID (Ground)
Bi-Directional
Data (SDA)*
H. Sync
V. Sync
Data Clock(SCL)*
5 4
3 2 1
6
7
8
9
10
11
12
13
14
15
1-2
6
Getting Started
to HD15
to video output
to video output
to VIDEO IN R/G/B
Connect to the computer in
the same way as for the HD15
connector.
If your PC system is not compatible with DDC2AB
and DDC2B+
This monitor uses the No. 9 pin in the video signal connector for
DDC2AB and DDC2B+ compatibility.
Some PC systems which are not compatible with either DDC2AB or
DDC2B+ may not accept the No. 9 pin. If you are not sure whether
your PC system accepts the No. 9 pin or not, use the HD15 (Female)
- HD15 (Male without the No. 9 pin) adapter (not supplied). Make
sure the male side (without the No. 9 pin) is connected to the
computer.
Connecting to a Macintosh or compatible
computer
About the supplied Macintosh adapter
The supplied Macintosh adapter is compatible with Macintosh LC,
Performa, Quadra and Power Macintosh series computers.
Macintosh II  series and some older versions of Power Book models
may need an adapter with micro switches (not supplied).
Connecting to the 5 BNC connectors
To connect the 5 BNC connectors, use the SMF-400 video
signal cable (sold separately). Connect the cables from left to
right in the following order: Red–Green–Blue–HD–VD.
Notes
• Do not short the pins of the video signal cable.
• The DDC standard does not apply to the  5 BNC connectors. If
you use the DDC standard, connect the HD15 connector to the
computer with the supplied video signal cable.
HD15 - HD15 adapter
(not supplied)
Macintosh adapter
(supplied)
IBM PC/AT or
compatible
computer
HD15 video
signal cable
(supplied)
Macintosh or
compatible
computer
HD15 video
signal cable
(supplied)
to SYNC IN HD/VD
to HD15
Setup
Before using this monitor, check that the following items are
included in your carton:
• Monitor (1)
• Power cord (1)
• HD15 video signal cable (1)
• Macintosh adapter (1)
• Windows
® 
 95 Monitor Information Disk/File (1)
• Warranty card (1)
• Notes on cleaning the screen’s surface (1)
• These operating instructions (1)
This monitor works with any IBM or compatible system
equipped with VGA or greater graphics capability.
Although this monitor works with other platforms running
at horizontal frequencies between 30 and 96 kHz, including
Macintosh and Power Macintosh systems, a cable adapter is
required. Please consult your dealer for advice on which
adapter is suitable for your needs.
Step 1: Connect the monitor to the
computer
With the computer switched off, connect the video signal
cable to the monitor using the supplied HD15 video signal
cable.
• If you are using an IBM PC/AT or compatible computer,
refer to the section below.
• If you are using a Macintosh or compatible computer,
refer to the following section, “Connecting to a Macintosh
or compatible computer.”
• If you want to use the 5 BNC connectors, refer to the
section, “Connecting to the 5 BNC connectors.”
Connecting to an IBM PC/AT or compatible
computer
*
The HD15 - HD15 adapter may be needed for some models.
7
Getting Started
Getting Started
F
EN
ES
C
to a power outlet
Power cord (supplied)
Automatically Adjusting the Size
and Centering of the Picture
By pressing the auto sizing and centering (ASC) button, the
size and centering of the picture are automatically adjusted
to fit the screen.
1
Turn on the monitor and computer.
2
Press the ASC button.
The picture is adjusted to fit the center of the screen.
Notes
• 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).
• The screen may go blank for a few seconds while performing the
auto-sizing function. This is not a malfunction.
• Although the signals for picture aspect ratio 5:4 (resolution: 1280
×
 1024) do not fill the screen to the edges, the picture is
accurately displayed.
Selecting the On-screen Display
Language
If you need to change the OSD language, see “Using the
LANG (Language) On-screen Display” on page 17.
The default setting is English.
Step 2: Connect the power cord
With the monitor switched off, connect one end of the
power cord to the monitor and the other end to a power
outlet.
Step 3: Turn on the monitor and computer
The installation of your monitor is complete.
Note
If “OUT OF SCAN RANGE” or “NO INPUT SIGNAL” appears on
the screen, see “Warning Messages” on page 20.
For customers using Windows
®
 95
Install the new model information from the “Windows 95 Monitor
Information Disk” into your PC. (To install the file, refer to the
attached “About the Windows 95 Monitor Information Disk/File.”)
This monitor complies with the “VESA
 
DDC” Plug&Play standard.
If your PC/graphics board complies with DDC, select “Plug and
Play Monitor (VESA DDC)” as “Monitor type” from “Control
Panel” in Windows 95. Some PCs/graphics boards do not comply
with DDC. Even if your computer complies with DDC, it may have
some problems connecting with this monitor. In this case, select this
monitor‘s model name (CPD-520GS) as “Monitor type” in Windows
95.
For customers using Windows NT4.0
Monitor setup in Windows NT4.0 is different from Windows 95 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.
ASC
to AC IN
1-3
8
Getting Started
Selecting the Input Signal
This monitor has two signal input connectors (HD15 and
5BNC) and can be connected to two computers. When the
power of both computers is on, select the input signal you
want to view as follows.
1
Turn on the monitor and both computers.
2
Press the INPUT button to select the HD15 or 5BNC
input signal.
Each time you press the INPUT button, the input signal
and corresponding indicator alternate.
Selecting the INPUT signal mode
This monitor has two modes of input signal selection,
“AUTO” and “MANUAL.”
When “AUTO” is selected
If no signal is input from the selected connector, the monitor
automatically selects the other connector’s signal. When you
restart the computer you want to view, or that computer is
in power saving mode, the monitor may automatically
select the other connector’s signal.  This is because the
monitor switches from the interrupted signal to the constant
signal. If this happens, manually select the desired signal
using the INPUT button.
When “MANUAL” is selected
Even if no signal is input from the selected connector, the
monitor does not select the other connector’s signal.
1
Press the MENU button.
The MENU OSD appears.
2
Press the ¨./> and >?// buttons to select “
OPTION,” and press the MENU button again.
The OPTION OSD appears.
3
Press the ¨./> buttons to select “
 (INPUT).”
4
Press the >?// buttons to select “AUTO” or
“MANUAL.”
The OPTION OSD automatically disappears after about 30
seconds.
To close the OSD, press the MENU button again.
For more information on using the OSD, see “Introducing
the On-screen Display System” on page 9.
HD15 BNC
INPUT
MENU
EXIT
CENTER
SIZE
GEOM
COLOR
LANG
ZOOM
SCREEN
OPTION
OK
MENU
MENU
ON
MANUAL  DEGAUSS
UNLOCK
1 MIN
OPTION
ZZ...
AUTO
ZZ...
INPUT
1 MIN
OPTION
UNLOCK
MANUAL
9
Getting Started
Customizing Your Monitor
F
EN
ES
C
Horizontal
Frequency*
Vertical
Frequency*
Before adjusting
• Connect the monitor and the computer, and turn them on.
• Select “
LANG” in the MENU OSD, then select
“ENGLISH” (see page 17).
Adjusting the Picture Brightness
and Contrast
Once the setting is adjusted, it will be stored in memory for
all input signals received.
1
Press  the ¨ (brightness) ./> or > (contrast) ?//
buttons.
The BRIGHTNESS/CONTRAST OSD appears.
2
For brightness adjustment
Press the ¨./> buttons.
> . . . for more brightness
. . . . for less brightness
For contrast adjustment
Press the >?// buttons.
/ . . . for more contrast
? . . . for less contrast
The OSD automatically disappears after about 3 seconds.
To reset,  press the RESET button while the OSD is on. The
brightness and contrast are both reset to the factory settings.
*
The horizontal and vertical frequencies for the received input
signal appear in the BRIGHTNESS/CONTRAST OSD.
Customizing Your Monitor
BRIGHTNESS/CONTRAST
26
26
80.0kHz/   75Hz
Introducing the On-screen
Display System
Most adjustments are made using the MENU OSD.
MENU OSD
Press the MENU button to display the MENU OSD.
This MENU OSD contains links to the other OSDs described
below.
1
 COLOR
Displays the COLOR OSD for adjusting the color
temperature.
2
 CENTER
Displays the CENTER OSD for adjusting the centering
of the picture.
3
 SCREEN
Displays the SCREEN OSD for adjusting the vertical
and horizontal convergence, etc.
4
 ZOOM
Displays the ZOOM OSD for enlarging and reducing
the picture.
5
 OPTION
Displays the OPTION OSD for adjusting the OSD
position and degaussing the screen, etc.
6
 SIZE
Displays the SIZE OSD for adjusting the picture size.
7
 LANG
Displays the LANGUAGE OSD for selecting the
language.
8
 GEOM
Displays the GEOMETRY OSD for adjusting the picture
rotation and pincushion, etc.
EXIT
Closes the MENU OSD.
MENU
MENU
EXIT
CENTER
SIZE
GEOM
COLOR
LANG
ZOOM
SCREEN
OPTION
OK
MENU
Page of 55
Display

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