Sony GDM500PS, GDM500PST, GDM500PST9 Service Manual
GDM-500PS/500PST/500PST9
GDM-500PS
SERVICE MANUAL
US Model
REVISED
Canadian Model
S. Hemisphere Model
SPECIFICATIONS
Picture tube 0.25 – 0.27 mm aperture grille pitch
21 inches measured diagonally
90-degree deflection
Viewable image size Approx. 403.8 × 302.2 mm (w/h)
(16 × 12 inches)
19.8" viewing image
Resolution Horizontal: Max. 1600 dots
Vertical: Max. 1200 lines
Standard image area Approx. 388 × 291 mm (w/h)
(15 3/8 × 11 1/2 inches)
or
Approx. 364 × 291 mm (w/h)
(14 3/8 × 11 1/2 inches)
Deflection frequency Horizontal: 30 to 107 kHz
Vertical: 48 to 160 Hz
AC input voltage/current
100 to 240 V, 50 – 60 Hz, 2.0 – 1.0 A
Power consumption Max. 160 W
Dimensions 498 × 505 × 474 mm (w/h/d)
(19 5/8 × 20 × 18 3/4 inches)
Mass Approx. 31 kg (68 lb 5 oz)
Supplied accessories See page 6
Equator Model
Chassis No. SCC-L04E-A
GDM-500PST/GDM-500PST9
AEP Model
Chassis No. SCC-L04B-A
N3
CHASSIS
MICROFILM
Design and specifications are subject to change without notice.
TRINITRON
®
COLOR GRAPHIC DISPLAY
GDM-500PS/500PST/500PST9
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps,
and mounting hardware have been replaced. Be absolutely
certain that you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious
signs of deterioration. Point them out to the customer and
recommend their replacement.
6. Check the line cords for cracks and abrasion. Recommend
the replacement of any such line cord to the customer.
7. Check the B+ and HV to see if they are specified values.
Make sure your instruments are accurate; be suspicious of
your HV meter if sets always have low HV.
8. Check the antenna terminals, metal trim, “metallized”
knobs, screws, and all other exposed metal parts for AC
Leakage. Check leakage as described below.
To Exposed Metal
Parts on Set
AC
0.15 µF
1.5 k
Ω
Voltmeter
(0.75 V)
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground
and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or
RCA WT-540A. Follow the manufacturers’ instructions to
use these instruments.
2. A battery-operated AC milliammeter. The Data Precision
245 digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are
examples of a passive VOMs that are suitable. Nearly all
battery operated digital multimeters that have a 2 V AC
range are suitable. (See Fig. A)
WARNING!!
NEVER TURN ON THE POWER IN A CONDITION IN
WHICH THE DEGAUSS COIL HAS BEEN REMOVED.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
¡ ON THE SCHEMATIC DIAGRAMS, EXPLODED
VIEWS AND IN THE PARTS LIST ARE CRITICAL FOR
SAFE OPERATION. REPLACE THESE COMPONENTS
WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE CRITICAL FOR SAFE OPERATION
ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE
PROCEDURES WHENEVER CRITICAL COMPONENTS
ARE REPLACED OR IMPROPER OPERATION IS SUSPECTED.
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
CAUTION ON DAS (ECS) CONNECTOR
• The connector for DAS (ECS) adjustment is provided inside
the cover shown below. Be careful with an electrical shock
when connecting the connector with the power supplied. Also,
return the removed cover to the home position.
Rear side
AVERTISSEMENT!!
NE JAMAIS METTRE SOUS TENSION QUAND LA
BOBINE DE DEMAGNETISATION EST ENLEVÉE.
ATTENTION AUX COMPOSANTS RELATIFS À LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET
UNE MARQUE
¡ SONT CRITIQUES POUR LA SÉCURITÉ.
NE LES REMPLACER QUE PAR UNE PIÈCE PORTANT LE
NUMÉRO SPECIFIÉ. LES RÉGLAGES DE CIRCUIT DONT
L’IMPORTANCE EST CRITIQUE POUR LA SÉCURITÉ DU
FONCTIONNEMENT SONT IDENTIFIÉS DANS LE
PRÉSENT MANUEL. SUIVRE CES PROCÉDURES LORS
DE CHAQUE REMPLACEMENT DE COMPOSANTS CRITIQUES, OU LORSQU’UN MAUVAIS FONCTIONNEMENT
EST SUSPECTÉ.
– 2 –
POWER SAVING FUNCTION
This monitor meets the power-saving guidelines set by VESA and
Energy Star, as well as the more stringent NUTEK .
If the monitor is connected to a computer or video graphics board
that is VESA DPMS (Display Power Management Signaling)
compliant, the monitor will automatically reduce power consumption in three stages as shown below.
You can set the delay time before the monitor enters the power
saving mode using the OSD. Set the time according to “Setting
the power saving delay time” on page 1-6.
GDM-500PS/500PST/500PST9
Note
If no video signal is input to the monitor, the “NO INPUT SIGNAL” message (page 1-8) appears. After the delay time has
passed, the power saving function automatically puts the monitor
into the active-off mode and the u indicator lights up orange. Once
the horizontal and vertical sync signals are detected, the monitor
automatically resumes its normal operation mode.
Power consumption
mode
Normal operation
1
Standby (1st mode)
2
Suspend (2nd mode)
3
Active-off (3rd mode)
4
Power-off
5
DIAGNOSIS
Failre
+B failure
Horizontal / Vertical Deflection
failure, Thermal protector
ABL protector
HV failure
Aging / Self Test
Screen
active
blank
blank
blank
—
Horizontal
sync signal
present
absent
present
absent
—
Vertical
sync signal
present
present
absent
absent
—
Power
consumption
≤ 160 W
≤ 100 W
≤ 15 W
≤ 5 W
0 W
Power LED
Orange → Off
(0.5 sec) (0.5 sec)
Orange → Off
(1.5 sec) (0.5 sec)
Orange → Off
(0.5 sec) (1.5 sec)
Orange → Off → Orange → Off
(0.25 sec) (0.5 sec) (0.25 sec) (1.25 sec)
Orange → Off → Green → Off
(0.5 sec) (0.5 sec) (0.5 sec) (0.5 sec)
Recovery time
—
Approx. 3 sec.
Approx. 3 sec.
Approx. 10 sec.
—
u indicator
Green
Green and orange
alternate
Green and orange
alternate
Orange
Off
Aging Mode (Video Aging) : During Power Save, press “MENU” key for longer than 2 second.
Self Test (OSD Color Bar) : During Power Save, press “CONTRAST” + (/) key for longer than 2 second.
Reliability Check Mode : During Power Save, press “CONTRAST” – (?) key for longer than 2 second.
– 3 –
GDM-500PS/500PST/500PST9
TIMING SPECIFICATION
MODE AT PRODUCTION MODE 1 MODE 2
RESOLUTION 738 X 414 1600 X 1200
CLOCK 28.322 MHz 229.500 MHz
— HORIZONTAL —
H-FREQ 31.469 kHz 106.250 kHz
usec usec
H. TOTAL 31.777 9.412
H. BLK 5.720 2.440
H. FP 0.318 0.279
H. SYNC 3.813 0.837
H. BP 1.589 1.325
H. ACTIV 26.057 6.972
— VERTICAL —
V. FREQ(HZ) 70.087 Hz 85.000 Hz
lines lines
V. TOTAL 449 1250
V. BLK 35 50
V. FP 5 1
V. SYNC 2 3
V. BP 28 46
V. ACTIV 414 1200
— SYNC —
INT(G) NO NO
EXT(H/V)/POLARITY YES N/P YES P/P
EXT(CS)/POLARITY NO NO
INT/NON INT NON INT NON INT
97.9.10 VER.
– 4 –
GDM-500PS/500PST/500PST9
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. A or A3 Board Removal ................................... 2-2
2-5. L or L3 Board Removal .................................... 2-3
2-6. I/O TERMINAL Board Assy Removal ............. 2-3
2-7. Service Position .................................................. 2-4
2-8. H and J Boards Removal ................................... 2-4
2-9. Picture Tube Removal ....................................... 2-5
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, GA, H, J and
L or L3 Boards .................................................. 5-17
(3) Schematic Diagram of A or A3 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 [EQ, SH model] .................. 6-3
6-4. Packing Materials [U/C, AEP model] ............... 6-4
7. ELECTRICAL PARTS LIST ............................ 7-1
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.
– 5 –
The operating instructions mentioned here are partial abstracts
5
Getting Started
Getting Started
F
EN
ES
C
Identifying Parts and Controls
See the pages in parentheses for further details.
Front
1 RESET (reset) button (page 17)
Resets the adjustments to the factory settings.
2 ASC (auto sizing and centering) button
(page 7)
Automatically adjusts the size and centering of the
images.
3 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.
4 ¨ (brightness) (./>) buttons (pages 8 –
17)
Adjust the picture brightness.
Function as the (./>) buttons when adjusting other
items.
5 MENU (menu) button (pages 8 -17)
Displays the MENU OSD.
6 > (contrast) (?//) buttons (pages 8 – 17,
22)
Adjust the contrast.
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 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
8 AC IN connector
Provides AC power to the monitor.
9 Video input 1 connector (HD15)
Inputs RGB video signals (0.714 Vp-p, positive) and
SYNC signals.
* Display Data Channel (DDC) Standard of VESA
!º Video input 2 connector (5 BNC)
Inputs RGB video signals (0.714 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
6789
10
1112131415
MENU
INPUT
RESET
ASC
HD15BNC
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.
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)
• TCO’95 Eco-document (1)
• Warranty card (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 107 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.
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
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remain as in the manual.
SECTION 1
GENERAL
1-1
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 (GDM-500PS) 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
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
1-2
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” (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.
9 EXIT
Closes the MENU OSD.
MENU
MENU
EXIT
CENTER
SIZE
GEOM
COLOR
LANG
ZOOM
SCREEN
OPTION
OK
MENU
10
Customizing Your Monitor
Using the CENTER On-screen
Display
The CENTER settings allow you to adjust the centering of
the picture.
Once the setting is adjusted, it will be stored in memory for
the current input signal.
1
Press the MENU button.
The MENU OSD appears.
2
Press the ¨./> and >?// buttons to select “
CENTER,” and press the MENU button again.
The CENTER OSD appears.
3
For horizontal adjustment
Press the >?// buttons.
/ . . . to move the picture right
? . . . to move the picture left
For vertical adjustment
Press the ¨./> buttons.
> . . . to move the picture up
. . . . to move the picture down
The OSD automatically disappears after about 30 seconds.
To close the OSD, press the MENU button again.
To reset, press the RESET button while the OSD is on.
The horizontal and vertical centerings are both reset to the
factory settings.
Using the SIZE On-screen Display
The SIZE settings allow you to adjust the size of the picture.
Once the setting is adjusted, it will be stored in memory for
the current input signal.
1
Press the MENU button.
The MENU OSD appears.
2
Press the ¨./> and >?// buttons to select “
SIZE,” and press the MENU button again.
The SIZE OSD appears.
3
For horizontal adjustment
Press the >?// buttons.
/ . . . to increase picture size
? . . . to decrease picture size
For vertical adjustment
Press the ¨./> buttons.
> . . . to increase picture size
. . . . to decrease picture size
The OSD automatically disappears after about 30 seconds.
To close the OSD, press the MENU button again.
To reset, press the RESET button while the OSD is on.
The horizontal and vertical sizes are both reset to the factory
settings.
MENU
MENU
SIZE
26
73
CENTER
26
73
1-3
11
Getting Started
Customizing Your Monitor
F
EN
ES
C
Using the GEOM (Geometry) Onscreen Display
The GEOM (geometry) settings allow you to adjust the
shape and orientation of the picture.
Once the rotation is adjusted, it will be stored in memory for
all input signals received. All other adjustments will be
stored in memory for the current input signal.
1
Press the MENU button.
The MENU OSD appears.
2
Press the ¨./> and >?// buttons to select “
GEOM,” and press the MENU button again.
The GEOMETRY OSD appears.
3
Press the ¨./> buttons to select the item you want
to adjust.
Select
ROTATION
PINCUSHION
PIN BALANCE
KEYSTONE
KEY BALANCE
To
adjust the picture rotation
adjust the picture sides
adjust the picture side balance
adjust the picture width
adjust the picture shape balance
MENU
ROTATION
GEOMETRY
26
4
Press the >?// buttons to adjust the settings.
The OSD automatically disappears after about 30 seconds.
To close the OSD, press the MENU button again.
To reset, press the RESET button while the OSD is on.
The selected item is reset to the factory setting.
For
ROTATION
PINCUSHION
PIN BALANCE
KEYSTONE
KEY BALANCE
Press
/ . . . to rotate the picture clockwise
? . . . to rotate the picture counterclockwise
/ . . . to expand the picture sides
? . . . to contract the picture sides
/ . . . to move the picture sides to the right
? . . . to move the picture sides to the left
/ . . . to increase the picture width at the
top
? . . . to decrease the picture width at the
top
/ . . . to move the top of the picture to
the right
? . . . to move the top of the picture to
the left
12
Customizing Your Monitor
Using the COLOR On-screen Display
You can change the monitor’s color temperature. For
example, you can adjust or change the colors of a picture on
the screen to match the actual colors of the printed picture.
Once the setting is adjusted, it will be stored in memory for
all input signals received.
1
Press the MENU button.
The MENU OSD appears.
2
Press the ¨./> and >?// buttons to select “
COLOR,” and press the MENU button again.
The COLOR OSD appears.
3
Press the >?// buttons to select the color
temperature.
There are three color temperature modes in the OSD.
The preset adjustments are:
5000K, 6500K, 9300K
MENU
COLOR
R BI AS
5000K 6500K
50
G BI AS
50
B BI AS
50
R GAIN
50
G GAIN
50
B GAIN
50
9300K
Using the ZOOM On-screen
Display
The ZOOM settings allow you to enlarge or reduce the
picture.
Once the setting is adjusted, it will be stored in memory for
the current input signal.
1
Press the MENU button.
The MENU OSD appears.
2
Press the ¨./> and >?// buttons to select “
ZOOM,” and press the MENU button again.
The ZOOM OSD appears.
3
Press the >?//buttons to adjust the picture zoom.
/ . . . to enlarge the picture
? . . . to reduce the picture
The OSD automatically disappears after about 30 seconds.
To close the OSD, press the MENU button again.
To reset, press the RESET button while the OSD is on.
Note
The picture zoom adjustment will stop as soon as either the
horizontal or vertical size reaches its maximum or minimum value.
MENU
ZOOM
73V
26H
1-4
13
Getting Started
F
EN
ES
C
Customizing Your Monitor
Using the SCREEN On-screen
Display
You can adjust convergence settings to eliminate red or blue
shadows that may appear around objects on the screen.
Adjust the CANCEL MOIRE function to eliminate wavy or
elliptical patterns that may appear on the screen.
Adjust the LANDING function to correct color imbalances
at the four corners of the screen due to influence from the
earth’s magnetism.
Once CANCEL MOIRE is adjusted, it will be stored in
memory for the current input signal. All other adjustments
will be stored in memory for all input signals received.
1
Press the MENU button.
The MENU OSD appears.
2
Press the ¨./> and >?// buttons to select “
SCREEN,” and press the MENU button again.
The SCREEN OSD appears.
3
Press the ¨./> buttons to select the item you want
to adjust.
MENU
Select
H CONVERGENCE
V CONVERGENCE
TOP
V CONVER TOP
BOT
V CONVER BOTTOM
To
adjust the horizontal convergence
adjust the vertical convergence
adjust the screen’s upper vertical
convergence
adjust the screen’s lower vertical
convergence
(continued)
SCREEN
TOP
BOT
H CONVERGENCE
26
ADJ
COLOR
6500K 9300K
G BI AS
50
B BI AS
50
R GAIN
50
G GAIN
50
B GAIN
50
R BI AS
76
1
4
Fine tuning the color temperature
Press the ¨./> buttons to select an item and adjust by
pressing the >?// buttons.
Select R (red), G (green), or B (blue) BIAS to adjust the
black level of each color’s signal.
Select R (red), G (green), or B (blue) GAIN to adjust the
white level of each color’s signal.
The “5000K,” “6500K” or “9300K” disappears and the
new color settings are memorized for each of the three
color modes.
The color temperature modes change as follows:
5000Kn 1, 6500Kn 2, 9300Kn 3
The OSD automatically disappears after about 30 seconds.
To close the OSD, press the MENU button again.
To reset, press the RESET button while the OSD is on. The
selected item is reset to the factory settings.
14
Customizing Your Monitor
* Moire is a type of natural interference which produces soft or
wavy lines on your screen. It may appear due to interference
between the regulated pattern of the picture from the input
signal and the phosphor pitch pattern of the CRT.
Example of moire:
4
Press the >?// buttons to adjust the settings.
Note
The picture may become fuzzy when CANCEL MOIRE is set to
“ON.”
The OSD automatically disappears after about 30 seconds.
To close the OSD, press the MENU button again.
To reset, press the RESET button while the OSD is on.
The selected item is reset to the factory setting.
ON
OFF
ON
OFF
50
For
BOT
V CONVER BOTTOM
LANDING
ADJ
LANDING ADJUST
CANCEL MOIRE
ADJ
MOIRE ADJUST
Press
/ . . . to shift red shadows up and blue
shadows down
? . . . to shift red shadows down and
blue shadows up
/ or ? . . . to select the corner of the
screen you want to adjust
: top left
: top right
: bottom left : bottom right
/ or ? . . . to reduce any irregularities in
the color to a minimum
/ . . . to turn CANCEL MOIRE “ON”
? . . . to turn CANCEL MOIRE “OFF”
/ or ? . . . to adjust the screen until the
moire is at a minimum
Select
LANDING
ADJ
LANDING ADJUST
CANCEL MOIRE *
ADJ
MOIRE ADJUST
To
select one of the four corners that
needs color correction due to
influence from the earth’s magnetism
correct the color at one of the four
corners of the screen
turn the moire cancellation function
“ON” or “OFF.” CANCEL MOIRE
must be “ON” for “
ADJ (MOIRE
ADJUST)” to appear on the screen.
adjust the degree of moire
cancellation
For
H CONVERGENCE
V CONVERGENCE
TOP
V CONVER TOP
Press
/ . . . to shift red shadows to the right
and blue shadows to the left
? . . . to shift red shadows to the left
and blue shadows to the right
/ . . . to shift red shadows up and blue
shadows down
? . . . to shift red shadows down and
blue shadows up
/ . . . to shift red shadows up and blue
shadows down
? . . . to shift red shadows down and
blue shadows up
50
1-5
15
Getting Started
Customizing Your Monitor
F
EN
ES
C
Using the OPTION On-screen
Display
The OPTION OSD allows you to manually degauss the
screen and adjust settings such as the OSD position and
power saving delay time. It also allows you to lock the
controls.
Degaussing the screen
The monitor screen is automatically degaussed
(demagnetized) when the power is turned on.
You can also manually degauss the monitor.
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 “
(MANUAL
DEGAUSS).”
4
Press the > / button.
The screen is degaussed for about 3 seconds.
If you need to degauss the screen a second time, wait for at
least 20 minutes before repeating the steps above.
The OPTION OSD automatically disappears after about 30
seconds.
To close the OSD, press the MENU button again.
Changing the on-screen display position
You can change the OSD position (for example, when you
want to adjust the picture behind the OSD).
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 “
(OSD H
POSITION)” or “
(OSD V POSITION).”
Select “
(OSD H POSITION)” to adjust the horizontal
position.
Select “
(OSD V POSITION)” to adjust the vertical
position.
4
Press the >?// buttons to move the OSD to the
desired position.
The OPTION OSD automatically disappears after about 30
seconds.
To close the OSD, press the MENU button again.
To reset, press the RESET button while the OSD is on.
MENU
ON
MANUAL DEGAUSS
UNLOCK
1 MIN
OPTION
ZZ...
MENU
ON
MANUAL DEGAUSS
UNLOCK
1 MIN
OPTION
ZZ...
ZZ...
OSD H POSITION
UNLOCK
1 MIN
OPTION
ZZ...
OSD V POSITION
UNLOCK
OPTION
AUTO
16
Customizing Your Monitor
Locking the controls
The control lock function disables all of the buttons on the
front panel except the u (power) switch, MENU and INPUT
buttons.
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 “
(CONTROL
LOCK).”
4
Press the >?// buttons to select “LOCK.”
The OPTION OSD automatically disappears after about 30
seconds.
To close the OSD, press the MENU button again.
Once you select “LOCK,” you cannot select any items
except “EXIT” and “
OPTION” in the MENU OSD.
If you press any button other than the u (power) switch,
MENU and INPUT buttons, the
mark appears on the
screen.
To cancel the control lock
Repeat steps 1 through 3 above and press the >?//
buttons to select “UNLOCK.”
Setting the power saving delay time
You can set the delay time before the monitor enters the
power saving mode. See page 19 for more information on
this monitor’s power saving capabilities.
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 “
ZZ...
(PWR SAVE
DELAY).”
4
Press the >?// buttons to select the desired time.
When PWR SAVE DELAY is set to “OFF,” the monitor
does not go into power saving mode.
The OPTION OSD automatically disappears after about 30
seconds.
To close the OSD, press the MENU button again.
To reset, press the RESET button while the OSD is on.
MENU
ON
MANUAL DEGAUSS
UNLOCK
1 MIN
OPTION
ZZ...
MENU
ON
MANUAL DEGAUSS
UNLOCK
1 MIN
OPTION
ZZ...
ZZ...
PWR SAVE DELAY
OPTION
5 SEC
60 MIN
1 MIN
OFF
AUTO
ZZ...
CONTROL LOCK
OPTION
UNLOCK LOCK
AUTO
1-6
17
Getting Started
Customizing Your Monitor
F
EN
ES
C
Using the LANG (Language) Onscreen Display
English, French, German, Spanish, Italian and Japanese
versions of the OSDs are available.
1
Press the MENU button.
The MENU OSD appears.
2
Press the ¨./> and >?// buttons to select “
LANG,” and press the MENU button again.
The LANGUAGE OSD appears.
3
Press the ¨./> buttons to select the desired
language.
ENGLISH: English, FRANÇAIS: French,
DEUTSCH: German, ESPAÑOL: Spanish,
ITALIANO: Italian, or
: Japanese.
The OSD automatically disappears after about 30 seconds.
To close the OSD, press the MENU button again.
To reset to English, press the RESET button while the OSD
is on.
MENU
RESET
RESET
MENU
RESET
Resetting the Adjustments
Resetting an adjustment item
1
Press the MENU, ¨./> and >?//buttons to select
the OSD containing the item you want to reset.
2
Press the ¨./> buttons to select the item you want
to reset.
3
Press the RESET button.
Resetting all of the adjustment data for
the current input signal
When there is no OSD displayed, press the RESET
button.
All of the adjustments data for the current input signal is
reset to the factory settings.
Note that adjustment data not affected by changes in input
signal (OSD language, OSD position, input signal selection,
power saving delay time and the control lock function) is
not reset to the factory settings.
Resetting all of the adjustment data for all
input signals
Press and hold the RESET button for more than two
seconds.
All of the adjustment data, including the brightness and
contrast, is reset to the factory settings.
ENGLISH
FRANÇAIS
DEUTSCH
ESPAÑOL
ITALIA NO
LANGUAGE
18
Technical Features
Preset and User Modes
This monitor has factory preset modes for the 27 most
popular industry standards for true “plug and play”
compatibility.
When a new input signal is entered, the monitor selects the
appropriate factory preset mode and momentarily adjusts
the phase calibration to provide a high quality picture to the
center of the screen. The calibration is stored in memory
and is immediately recalled whenever the same input signal
is received.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Resolution
(dots × lines)
640 × 350
640 × 480
640 × 480
640 × 480
720 × 400
720 × 400
800 × 600
800 × 600
800 × 600
832 × 624
1024 × 768
1024 × 768
1024 × 768
1024 × 768
1024 × 768
1152 × 864
1152 × 870
1280 × 960
1280 × 960
1280 × 1024
1280 × 1024
1280 × 1024
1600 × 1200
1600 × 1200
1600 × 1200
1600 × 1200
1600 × 1200
Horizontal
Frequency
31.5 kHz
31.5 kHz
37.5 kHz
43.3 kHz
31.5 kHz
37.9 kHz
37.9 kHz
46.9 kHz
53.7 kHz
49.7 kHz
48.4 kHz
56.5 kHz
60.0 kHz
60.2 kHz
68.7 kHz
67.5 kHz
68.7 kHz
60.0 kHz
85.9 kHz
64.0 kHz
80.0 kHz
91.1 kHz
75.0 kHz
81.3 kHz
87.5 kHz
93.8 kHz
106.3 kHz
Vertical
Frequency
70 Hz
60 Hz
75 Hz
85 Hz
70 Hz
85 Hz
60 Hz
75 Hz
85 Hz
75 Hz
60 Hz
70 Hz
75 Hz
75 Hz
85 Hz
75 Hz
75 Hz
60 Hz
85 Hz
60 Hz
75 Hz
85 Hz
60 Hz
65 Hz
70 Hz
75 Hz
85 Hz
Graphics Mode
MCGA
VGA-G
EVGA
VESA
VGA-Text
VESA
SVGA
ESVGA
VESA
Macintosh
16” Color
VESA
VESA
EUVGA
Macintosh
19” Color
VESA
VESA
Macintosh
21” Color
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
VESA
Technical Features
For input signals that do not match one of the factory preset
modes, the digital Multiscan technology of this monitor
performs all of the adjustments necessary to ensure that a
clear picture appears on the screen for any timing in the
monitor’s frequency range. However, it may be necessary
to fine tune the vertical/horizontal size and centering.
Simply press the ASC button or adjust the monitor
according to the adjustment instructions. The adjustments
are stored automatically as a user mode and recalled
whenever the corresponding input signal is received. A
total of 15 user adjusted modes can be stored in memory,
including those made with the ASC button. If a 16th mode
is entered, it will replace the first.
Recommended horizontal and vertical timing
conditions
Horizontal sync width duty should be: >4.8% of total horizontal
time.
Horizontal blanking width should be: >2.5 µsec.
Vertical blanking width should be: > 450 µsec.
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.
Adjusting the monitor’s resolution and color
number
If you are using Windows 95, adjust the monitor’s
resolution and color number according to the steps below.
Refer also to the Windows 95 HELP files.
If you are using a Macintosh or compatible computer, Refer
to your computer’s instruction manual.
1
Click the Start button and point to Settings. Then
double-click the Control Panel.
2
Double-click the Display icon.
3
Click Settings.
4
Click the Color palette. Point to the desired color
number and click.
Point to the Desktop area and drag the slider to the
desired resolution.
5
Click OK.
Note
Some settings may require that the computer be turned off then
back on to take effect. In this case, follow the on-screen instructions.
About the color number
• The Color palette setting and the actual number of colors is as
follows:
High Color (16 bit) n 65,536 colors
True Color (24 bit) n about 1,677 million colors
• In True color mode (24 bit), speed may be slower.
• The color number may vary according to your computer or
video board.
1-7
20
Additional Information
Warning Messages
If there is something wrong with the input signal, one of the
following messages appears.
Additional Information
1 The input signal condition
“OUT OF SCAN RANGE” indicates that the input signal
is not supported by the monitor’s specifications.
“NO INPUT SIGNAL” indicates that no signal is input, or
the input signal from the selected input connector is not
received.
2 The selected input connector
Indicates which input connector is receiving the wrong
signal. If there is something wrong with the signal from
both input connectors, “HD15” and “BNC” are
displayed alternately.
To solve these problems, see “Troubleshooting” below.
Troubleshooting
This section may help you isolate the cause of a problem and as a result, eliminate the need to contact technical support.
Symptom Check these items
No picture
If the u indicator is not lit
If the “NO INPUT SIGNAL”
message appears on the screen,
or if the u indicator is either
orange or alternating between
green and orange
If the “OUT OF SCAN RANGE”
message appears on the screen
If no message is displayed and
the u indicator is green or
flashing orange
If using a Macintosh system
If using Windows
95
Picture is scrambled
• Check that the power cord is properly connected.
• Check that the u (power) switch is in the “on” position.
• The screen is blank when the monitor is in power saving mode. Try pressing any key on the
computer keyboard.
• Check that your computer power switch is in the “on” position.
• Check that the input select setting is correct.
• Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets.
• Check that the 5 BNCs are connected in the correct order (from left to right: Red–Green–
Blue–HD–VD) (page 6).
• Ensure that no pins are bent or pushed in the HD15 video input connector.
• Check that the video board is completely seated in the proper bus slot.
• Check that the video frequency range is within that specified for the monitor.
(Horizontal: 30 – 107 kHz, Vertical: 48 – 160 Hz)
Refer to your computer‘s instruction manual to adjust the video frequency range.
• If you are using a video signal cable adapter, check that it is correct.
• See “Self-diagnosis Function” (page 22).
• Check that the Macintosh adapter and the video signal cable are properly connected (page
6).
• If you cannot find “GDM-500PS” among the Sony monitors in the Windows 95 monitor
selection screen, select the DDC standard monitor or install the Windows 95 Monitor
Information Disk (page 7).
The DDC standard does not apply to the 5 BNC connectors. If you use the DDC standard,
connect the computer to the HD15 connector with the supplied video signal cable.
• Check your graphics board manual for the proper monitor setting.
• Check this manual and confirm that the graphics mode and the frequency you are trying to
operate at is supported. 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.
INFORMATION
OUT OF SCAN RANGE
INPUT : HD15
21
Getting Started
Additional Information
F
EN
D
ES
I
Symptom Check these items
Color is not uniform
You cannot adjust the monitor
with the buttons on the front
panel
White does not look white
Screen image is not centered or
sized properly
Edges of the image are curved
White lines show red or blue
shadows at edges
Picture is fuzzy
Picture bounces or has wavy
oscillations
Picture is flickering
Picture appears to be ghosting
Wavy or elliptical (moire)
pattern is visible
Two fine horizontal lines
(wires) are visible
Hum is heard right after the
power is turned on
• Degauss the monitor (page 15).
If you place equipment which generates a magnetic field, such as a loudspeaker, near the
monitor, or you change the direction of the monitor, color may lose uniformity.
The degauss function demagnetizes the metal frame of the CRT to obtain a neutral field for
uniform color reproduction. If a second degauss cycle is needed, allow a minimum interval
of 20 minutes for the best result.
• Adjust the landing (pages 13 – 14).
• If the control lock function is set to on, set it to off using the OPTION OSD (page 16).
• Adjust the color temperature (pages 12 – 13).
• Check that the 5 BNCs are connected in the correct order (from left to right: Red–Green–
Blue–HD–VD) (page 6).
• Press the ASC button (page 7).
• Adjust the size or centering (page 10).
• Some video modes do not fill the screen to the edges. This problem tends to occur with
certain video boards.
• Adjust the geometry (page 11).
• Adjust the convergence (pages 13 – 14).
• Adjust the contrast and brightness (page 9).
• Degauss the monitor (page 15).
If you place equipment which generates a magnetic field, such as a loudspeaker, near the
monitor, or you change the direction of the monitor, color may lose uniformity.
The degauss function demagnetizes the metal frame of the CRT to obtain a neutral field for
uniform color reproduction. If a second degauss cycle is needed, allow a minimum interval
of 20 minutes for the best result.
• If red or blue shadows appear along the edges of images, adjust the convergence
(pages 13 – 14).
• If the moire is cancelled, the picture may become fuzzy. Decrease the moire cancellation
effect (pages 13 – 14).
• Isolate and eliminate any potential sources of electric or magnetic fields. Common causes
for this symptom are electric fans, fluorescent lighting or laser printers.
• If you have another monitor close to this monitor, increase the distance between them to
reduce the interference.
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try the monitor on a different computer in a different room.
• Set the refresh rate on the computer to obtain the best possible picture by referring to the
computer’s manual.
• Eliminate the use of video cable extensions and/or video switch boxes if this symptom
occurs. Excessive cable length or a weak connection can produce this symptom.
• Cancel the moire (pages 13 – 14).
The moire may be modified depending on the connected computer.
• Due to the relationship between resolution, monitor dot pitch and the pitch of some image
patterns, certain screen backgrounds sometimes show moire. Change your desktop pattern.
• These wires stabilize the vertically striped aperture grille (page 19). This aperture grille
allows more light to pass through to the screen giving the Trinitron CRT more color and
brightness.
• When the power is turned on, the auto-degauss cycle is activated. While the auto-degauss
cycle is activated (3 seconds), a hum may be heard. The same hum is heard when the
monitor is manually degaussed. This is not a malfunction.
1-8
GDM-500PS/500PST/500PST9
MEMO
1-9
2-1. CABINET REMOVAL
5
6
Top cover
Four screws
(+ BVTT 4 x 8)
SECTION 2
DISASSEMBLY
1
Screw cover
Two claws
GDM-500PS/500PST/500PST9
3
Four screws
(+ BVTP 4 x 16)
2
Screw cover
4
Cabinet
2-2. D BOARD REMOVAL
4 5
Screw
(+ P 3.5 x 20)
6
D board
Two screws
(+ BVTP 3 x 10)
8
Video shield
1
Screw
(+ BVTT 4 x 8)
2
Two screws
(+ BVTT 4 x 8)
7
Four screws
(+ BVTT 4 x 8)
B
Three hooks
3
Open the D block in the direction
of the arrow . and remove of
the arrow .
2-1
A
A
B
GDM-500PS/500PST/500PST9
2-3. G BOARD REMOVAL
1
Screw
(+ BVTT 4 x 8)
2
Two screws
(+ BVTT 4 x 8)
B
A
4
Two screws
(+BVTP 3 x 10)
5
G shield
7
G board
3
Open the G block in the direction
of the arrow . and remove of
the arrow .
A
B
2-4. A or A3 BOARD REMOVAL
Three hooks
6
Two printed circuit board holders
Note:A complete board and A3 complete
board have interchangeability though
it is a little different because the
material of the circuit board is
different.
3
A or A3 board (2/2)
2
A or A3 board (1/2)
2-2
1
Three screws
(+BVTT 4 x 8)
2-5. L or L3 BOARD REMOVAL
CN5002
GDM-500PS/500PST/500PST9
Note:L complete board and L3 complete
board have interchangeability though
it is a little different because the
material of the circuit board is
different.
CN5001
CN5004
CN5003
2
L or L3 board
1
Four printed circuit board holders
2-6. I/O TERMINAL BOARD ASSY REMOVAL
CN511
1
Three screws
(+ BVTT 3 x 8)
CN401
CN402
2
I/O terminal board assy
2-3
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