Sony GDM-5403 Service Manual
GDM-5403
CRT 0.24 mm aperture grille pitch
21 inches measured diagonally
90-degree deflection
FD Trinitron
Viewable image size Approx. 403.8 × 302.2 mm (w/h)
(16 × 12 inches)
19.8" viewing image
Maximum resolution Horizontal: 1600 dots
Vertical: 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 109 kHz
Vertical: 48 to 160 Hz
AC input voltage/current 100 to 240 V, 50 – 60 Hz, 2.0 – 1.0 A
Power consumption Approx. 145 W
Dimensions
Approx. 498 × 491 × 478 mm (w/h/d)
(19
5
/8 × 19 3/8 × 18 7/8 inches)
Mass Approx. 32 kg (70 lb 9 oz)
Plug and Play DDC1/2B/2Bi, GTF**
* Recommended horizontal and vertical timing condition
•
Horizontal sync width duty should be more than 4.8% of total
horizontal time or 0.8 µs, whichever is larger.
• Horizontal blanking width should be more than 2.3 µsec.
• Vertical blanking width should be more than 450 µsec.
** If the input signal is Generalized Timing Formula (GTF)
compliant, the GTF feature of the monitor will automatically
provide an optimal image for the screen.
Design and specifications are subject to change without notice.
SERVICE MANUAL
SPECIFICATIONS
AEP Model
Chassis No. SCC-L22M-A
(OEM STD)
Chassis No. SCC-L22U-A
(ELSA, FORMAC)
G1
CHASSIS
COLOR GRAPHIC DISPLAY
GDM-5403
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.
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)
To Exposed Metal
Parts on Set
0.15 µF
1.5 k
Ω
Earth Ground
AC
Voltmeter
(0.75 V)
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
Cover ECS
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.
– 2 –
POWER SAVING FUNCTION
This monitor meets the power-saving guidelines set by VESA,
E
NERGY STAR, and NUTEK. If the monitor is connected to a
computer or video graphics board that is DPMS (Display Power
Management Signaling) compliant, the monitor will automatically
reduce power consumption in three stages as shown below
.
Power mode Power consumption 1 (power)
indicator
normal
operation
≤ 145 W green
1 standby ≤ 100 W green and orange
alternate
2 suspend
(sleep)*
≤ 15 W green and orange
alternate
3 active off**
(deep sleep)*
Approx. 1 W orange
power off 0 W off
* “Sleep” and “deep sleep” are power saving modes defined by the
Environmental Protection Agency.
** When your computer enters a power saving mode, the input signal is
cut and NO INPUT SIGNAL appears on the screen. After a few
seconds, the monitor enters power saving mode.
GDM-5403
DIAGNOSIS
This monitor is equipped with a self-diagnosis function. If there is
a problem with your monitor or computer(s), the screen will go
blank and the 1 (power) indicator will either light up green or
flash orange. If the 1 (power) indicator is lit in orange, the
computer is in power saving mode. Try pressing any key on the
keyboard.
12
1 (power) indicator
If the 1 (power) indicator is green
1
Disconnect the video input cable or turn off the
connected computer.
2
Press the 1 (power) button twice to turn the monitor
off and then on.
3
Press the , button for 2 seconds before the
monitor enters power saving mode.
If all four color bars appear (white, red, green, blue), the monitor
is working properly. Reconnect the video input cables and check
the condition of your computer(s).
If the color bars do not appear, there is a potential monitor failure.
Inform your service representative of the monitor’s condition.
If the 1 (power) indicator is flashing orange
Press the 1 (power) button twice to turn the monitor off
and then on.
If the 1 (power) indicator lights up green, the monitor is working
properly.
If the 1 (power) indicator is still flashing, there is a potential
monitor failure. Count the number of seconds between orange
flashes of the 1 (power) indicator and inform your service
representative of the monitor’s condition. Be sure to note the
model name and serial number of your monitor. Also note the
make and model of your computer and video board.
– 3 –
GDM-5403
TIMING SPECIFICATION
MODE AT PRODUCTION
RESOLUTION
CLOCK
— HORIZONTAL —
H-FREQ
H. TOTAL
H. BLK
H. FP
H. SYNC
H. BP
H. ACTIV
— VERTICAL —
V. FREQ (HZ)
` lines lines
V. TOTAL
V. BLK
V. FP
V. SYNC
V. BP
V. ACTIV
— SYNC —
INT(G)
EXT (H/V) /POLARITY
EXT (CS) /POLARITY
INT/NON INT
MODE 1 MODE 2
1600 X 1200 1280 X 1024
229.500 MHz 157.500 MHz
106.250 kHz 91.146 kHz
usec usec
9.412 10.971
2.440 2.844
0.279 0.406
0.837 1.016
1.325 1.422
6.972 8.127
85.000 Hz 85.024 Hz
1250 1072
50 48
11
33
46 44
1200 1024
NO NO
YES P/P YES P/P
NO NO
NON INT NON INT
2000.01.04 VER.
– 4 –
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 Board Terminal Board Bracket
Removal ............................................................. 2-2
2-5. N Board Removal .............................................. 2-3
2-6. Service Position .................................................. 2-3
2-7. Bezel Assembly, H Board Removal .................. 2-4
2-8. J Board Removal ............................................... 2-4
2-9. Picture Tube Removal ....................................... 2-5
2-10. Harness Location ............................................... 2-6
GDM-5403
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 A Board ........................ 5-11
(2) Schematic Diagrams of H, J Boards ................. 5-17
(3) Schematic Diagram of D Board ........................ 5-19
(4) Schematic Diagrams of N (a, b, c) Board 5-23
(5) Schematic Diagram of G Board ........................ 5-31
5-5. Semiconductors ................................................. 5-35
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
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
4
Precautions
Warning on power connections
Use an appropriate power cord for 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.
• After the power is turned on, the screen is demagnetized
(degaussed) for about 2 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.
Installation
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
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.
• 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.
Transportation
When you transport this monitor for repair or shipment, use the
original carton and packing materials.
Use of the tilt-swivel
This monitor can be adjusted within the angles shown below. To
turn the monitor vertically or horizontally, hold it at the bottom
with both hands.
The equipment should be installed near an easily accessible
outlet.
Example of plug types
for 100 to 120 V AC for 240 V AC only
90˚
5˚
90˚
15˚
5
GB
Identifying parts and controls
See the pages in parentheses for further details.
1
0
(reset) button (page 14)
This button resets the adjustments to the factory settings.
2
ASC (auto sizing and centering) button (page 7)
This button automatically adjusts the size and centering of the
picture.
3
(brightness)
m
/
M
buttons (page 9)
These buttons display the BRIGHTNESS/CONTRAST menu
and function as the
m
/
M
buttons when selecting menu items.
4
(menu) button (page 9)
This button displays the main menu.
5
6
(contrast)
<
/
,
buttons (page 9)
These buttons display the BRIGHTNESS/CONTRAST menu
and function as the
<
/
,
buttons when making adjustments.
6
1
(power) switch and indicator (pages 6, 14, 18)
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.
7
AC IN connector (page 6)
This connector provides AC power to the monitor.
8
Video input connector (HD15) (
y
1) (page 6)
This connector inputs RGB video signals (0.700 Vp-p,
positive) and sync signals.
* DDC (Display Data Channel) is a standard of VESA.
12
AC IN
(HD15)
1
RearFront
Pin No. Signal
1 Red
2 Green
(Sync on Green)
3 Blue
4 ID (Ground)
5 DDC Ground*
6 Red Ground
7 Green Ground
8 Blue Ground
9 DDC + 5V*
10 Ground
11 ID (Ground)
12 Bi-Directional Data (SDA)*
13 H. Sync
14 V. Sync
15 Data Clock (SCL)*
5
4
3
2
1
6
7
8
9
10
11
12
13
14
15
SECTION 1
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remain as in the manual.
GENERAL
1-1
6
Setup
This monitor works with platforms running at horizontal
frequencies between 30 and 109 kHz.
Step 1:Connect your monitor to
your computer
With the monitor and computer switched off, connect the video
signal cable to the video input connector of the monitor and to the
video output of the computer.
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.
Step 2:Connect the power cord
With the monitor and computer switched off, first connect the
proper power cord for your local power supply 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 no picture appears on your screen
• Check that the monitor is correctly connected to the computer.
• If NO INPUT SIGNAL appears on the screen, follow the on-
screen messages (page 15).
• 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 – 109 kHz, and the vertical
frequency is between 48
– 160 Hz.
For more information about the on-screen messages, see “Trouble
symptoms and remedies
” on page 16.
AC IN
(HD15)
1
forward side
HD15 video output
rear side
AC IN
(HD15)
1
to AC IN
to a power outlet
power cord
7
GB
Selecting the on-screen menu
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.
1
Press the button.
See page 9 for more information on using the button.
2
Press the
m
/
M
buttons to highlight LANGUAGE
and press the button again.
See page 9 for more information on using the
m
/
M
buttons.
3
Press the
m
/
M
buttons to select a language.
• ENGLISH
• FRANÇAIS: French
• DEUTSCH: German
• ESPAÑOL: Spanish
• ITALIANO: Italian
• NEDERLANDS: Dutch
• SVENSKA: Swedish
• : Russian
• : Japanese
To close the menu
Press the 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.
To reset to English
Press the
0
(reset) button while the LANGUAGE menu is displayed on
the screen.
Automatically sizing and centering
the picture
You can easily adjust the picture to fill the screen by pressing the
(auto sizing and centering) button.
Press the button.
The picture automatically fills the screen.
Notes
• This function is intended for use with a computer that provides a fullscreen 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.
• Pictures with an aspect ratio of 5:4 (resolution: 1280
×
1024, 1600
×
1280) are displayed at their actual resolution and do not fill the screen
to the edges.
• The displayed image moves for a few seconds when the button is
pressed. This is not a malfunction.
EX I T
SIZE/CENTER
GEOMETRY
CONVE RGENCE
SCREEN
COLOR
LANGUAGE
OPT I ON
MENU
OK
b
ENGL I SH
FRANÇAIS
DEUTSCH
ESPAÑOL
ITALIANO
NEDERLANDS
SVENSKA
LANGUAGE
b
1-2
8
Customizing Y our Monitor
You can make numerous adjustments to your monitor using the
on-screen menu.
Navigating the menu
Press the button to display the main MENU on your screen.
Use the
m
/
M
and buttons to select one of the following
menus. See page 9 for more information on using the
m
/
M
and
buttons.
x
Displaying the current input signal
The horizontal and vertical frequencies of the current input signal
are displayed in the main MENU. If the signal matches one of this
monitor’s factory preset modes, the resolution is also displayed.
1
EXIT
Select EXIT to close the menu.
2
SIZE/CENTER (page 10)
Select the SIZE/CENTER menu to
adjust the picture
’s size, centering
or zoom.
3
GEOMETRY (page 10)
Select the GEOMETRY menu to
adjust the picture
’s rotation and
shape.
4
CONVERGENCE (page 11)
Select the CONVERGENCE menu
to adjust the picture’s horizontal and
vertical convergence.
5
SCREEN (page 11)
Select the SCREEN menu to adjust
the picture’s quality. You can adjust
the landing and moire cancellation
effect.
6
COLOR (page 12)
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.
EX I T
SI ZE / CENTER
GEOMETRY
CONVE RGENCE
SCREEN
COLOR
LANGUAGE
OPT I ON
MENU
OK
26
S I ZE /CENTER
26
GEOMETRY
TOP
BOT
26
CONVERGENCE
LANDING
26
SCREEN
EASY EXPERT s BGR
5000K 6500K 930 K0
50 K00
COLOR
RETURN ON
COLOR
7
LANGUAGE (page 7)
Select the LANGUAGE menu to
choose the on-screen menu
’s
language.
8
OPTION (page 13)
Select the OPTION menu to adjust
the monitor’s options. The options
include:
• degaussing the screen
• changing the on-screen menu
position
• locking the controls
ENGL I SH
FRANÇAIS
DEUTSCH
ESPAÑOL
ITALIANO
NEDERLANDS
SVENSKA
LANGUAGE
DEGAUS
S
ON
OPT I ON
MENU
EX I T
SI ZE / CENTER
GEOMETRY
CONVE RGENCE
SCREEN
COLOR
LANGUAGE
OPT I ON
68. 7kHz/ 85Hz
1024x 768
OK
the horizontal
and vertical
frequencies of
the current
input signal
the resolution
of the current
input signal
9
GB
x Using the , m/M, and </, buttons
1
Display the main MENU.
Press the button to display the main MENU on your
screen.
2
Select the menu you want to adjust.
Press the m/M buttons to highlight the desired menu. Press the
button to select the menu item.
3
Adjust the menu.
Press the m/M buttons to select the desired adjustment item.
Press the </, buttons to make the adjustment.
4
Close the menu.
Press the 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 Resetting the adjustments
Press the 0 (reset) button. See page 14 for more information on
resetting the adjustments.
Adjusting the brightness and
contrast
Brightness and contrast adjustments are made using a separate
BRIGHTNESS/CONTRAST menu.
These settings are stored in memory for the signals from the
currently selected input connector.
1
Press either one of the (brightness) m/M or 6
(contrast) </, buttons.
The BRIGHTNESS/CONTRAST menu appears on the
screen.
2
Press the (brightness) m/M
buttons to adjust the
brightness ( ), and 6 (contrast) </, buttons to
adjust the contrast (6).
If you are using the sRGB mode
If you selected the sRGB mode in the COLOR menu, the
following BRIGHTNESS/CONTRAST menu appears on the
screen.
For more information about using the sRGB mode, see
“Adjusting the color of the picture (COLOR)
” on page 12.
The menu automatically disappears after about 3 seconds.
b
b
26 26
BRI GHTNESS / CONTRAST
56 76
sRGB : 56 76
BRI GHTNESS / CONTRAST
1-3
10
Adjusting the size of the picture
(SIZE/CENTER)
This setting is stored in memory for the current input signal.
1
Press the button.
The main MENU appears on the screen.
2
Press the m/M buttons to highlight SIZE/CENTER
and press the button again.
The SIZE/CENTER menu appears on the screen.
3
First press the m/M buttons to select for
horizontal adjustment, or for vertical adjustment.
Then press the </, buttons to adjust the size.
Adjusting the centering of the
picture (SIZE/CENTER)
This setting is stored in memory for the current input signal.
1
Press the button.
The main MENU appears on the screen.
2
Press the m/M buttons to highlight SIZE/CENTER
and press the button again.
The SIZE/CENTER menu appears on the screen.
3
First press the m/M buttons to select for
horizontal adjustment, or for vertical adjustment.
Then press the </, buttons to adjust the
centering.
Enlarging or reducing the picture
(ZOOM)
This setting is stored in memory for the current input signal.
1
Press the button.
The main MENU appears on the screen.
2
Press the m/M buttons to highlight SIZE/
CENTER and press the button again.
The SIZE/CENTER menu appears on the screen.
3
Press the m/M buttons to select (zoom), and
press the </, buttons to enlarge or reduce the
picture.
Note
Adjustment stops when either the horizontal or vertical size reaches its
maximum or minimum value.
Adjusting the shape of the picture
(GEOMETRY)
The GEOMETRY settings allow you to adjust the rotation and
shape of the picture.
The
(rotation) setting is stored in memory for all input signals.
All other settings are stored in memory for the current input
signal.
1
Press the button.
The main MENU appears on the screen.
2
Press the m/M buttons to highlight GEOMETRY
and press the button again.
The GEOMETRY menu appears on the screen.
3
First press the m/M buttons to select the desired
adjustment item. Then press the </, buttons to
make the adjustment.
Select To
rotate the picture
expand or contract the picture sides
shift the picture sides to the left or right
adjust the picture width at the top of the screen
shift the picture to the left or right at the top of the
screen
11
GB
Adjusting the convergence
(CONVERGENCE)
The CONVERGENCE settings allow you to adjust the quality of
the picture by controlling the convergence. The convergence
refers to the alignment of the red, green, and blue color signals.
If you see red or blue shadows around letters or lines, adjust the
convergence.
These settings are stored in memory for all input signals.
1
Press the button.
The main MENU appears on the screen.
2
Press the m/M buttons to highlight
CONVERGENCE and press the button again.
The CONVERGENCE menu appears on the screen.
3
First press the m/M buttons to select the desired
adjustment item. Then press the </, buttons to
make the adjustment.
Adjusting the quality of the picture
(SCREEN)
The SCREEN settings allow you to adjust the quality of the
picture by controlling the moire and landing.
• If the color is irregular at the corners of the screen, adjust the
landing.
• If elliptical or wavy patterns appear on the screen, cancel the
moire.
The CANCEL MOIRE and MOIRE ADJUST settings are stored
in memory for the current input signal. All other settings are
stored in memory for all input signals.
1
Press the button.
The main MENU appears on the screen.
2
Press the m/M buttons to highlight SCREEN and
press the button again.
The SCREEN menu appears on the screen.
3
First press the m/M buttons to select the desired
adjustment item. Then press the </, buttons to
make the adjustment.
* Moire is a type of natural interference which produces soft, wavy lines
on your screen. It may appear due to interference between the pattern
of the picture on the screen and the phosphor pitch pattern of the
monitor.
Note
The picture may become fuzzy when CANCEL MOIRE is set to ON.
Select To
horizontally shift red or blue shadows
vertically shift red or blue shadows
TOP
V CONVER TOP
vertically shift red or blue shadows at
the top of the screen
BOT
V CONVER
BOTTOM
vertically shift red or blue shadows at
the bottom of the screen
Select To
LANDING
reduce any color irregularities in the
screen’
s top left corner to a minimum.
LANDING
reduce any color irregularities in the
screen’s top right corner to a
minimum.
LANDING
reduce any color irregularities in the
screen’s bottom left corner to a
minimum.
LANDING
reduce any color irregularities in the
screen’s bottom right corner to a
minimum.
CANCEL MOIRE*
turn the moire cancellation function
ON or OFF.
(MOIRE ADJUST) appears in
the menu when you select ON.
MOIRE ADJUST
adjust the degree of moire
cancellation until the moire is at a
minimum.
Example of moire
1-4
12
Adjusting the color of the picture
(COLOR)
The COLOR settings allow you to adjust the picture
’s color
temperature by changing the color level of the white color field.
Colors appear reddish if the temperature is low, and bluish if the
temperature is high. This adjustment is useful for matching the
monitor’s color to a printed picture
’s colors.
1
Press the button.
The main MENU appears on the screen.
2
Press the m/M buttons to highlight COLOR and
press the button again.
The COLOR menu appears on the screen.
3
Press the </, buttons to select the adjustment
mode.
There are three types of adjustment modes, EASY , EXPERT
and sRGB.
4
First press the m/M buttons to select the desired
adjustment item. Then press the </, buttons to
make the adjustment.
Adjust the selected mode according to the following
instructions.
EASY mode
EXPERT mode
You can make additional adjustments to the color in greater detail
by selecting the EXPERT mode.
1
First press the m/M buttons to select the color
temperature row 1, then press the </, buttons
to select a color temperature.
The preset color temperatures are 5000K, 6500K, and 9300K.
Since the default setting is 9300K, the whites will change
from a bluish hue to a reddish hue as the temperature is
lowered to 6500K and 5000K.
2
If necessary, fine tune the color temperature.
First press the m/M buttons to select the color
temperature adjustment row 2, then press the </
, buttons to fine tune the color temperature.
If you fine tune the color temperature, the new color settings
are stored in memory for each of the three color temperatures
and item 1 of the on-screen menu changes as follows.
• [5000K]t[1]
• [6500K]t[2]
• [9300K]t[3]
EASY EXPERT s BGR
5000K 6500K 930 K0
50 K00
COLOR
RETURN ON
COLOR
1
Press the m/M buttons to select the color
temperature row 1, then press the </, buttons
to select a color temperature.
2
Press the m/M buttons to select the adjustment item
2, then press the </, buttons to adjust the BIAS
(black level).
This adjusts the dark areas of an image.
3
Press the m/M buttons to select the adjustment item
3, then press the </, buttons to adjust the GAIN
(white level).
This adjusts the light areas of an image.
You can adjust the R (red), G (green), B (blue) component of
the input signal when making changes to items 2 and 3.
If you fine tune the color temperature, the new color settings
are stored in memory for each of the three color temperatures
and item 1 of the on-screen menu change as follows.
• [5000K]t[1]
• [6500K]t[2]
• [9300K]t[3]
EASY EXPERT s BGR
5000K 6500K 930 K0
RBIAS 05
GBIAS 05
BBIAS 05
RGAIN 05
GGAIN 05
BGAIN 05
COLOR
13
GB
sRGB mode
The sRGB color setting is an industry standard color space
protocol designed to correlate the displayed and printed colors of
sRGB compliant computer products. To adjust the colors to the
sRGB profile, simply select the sRGB mode in the COLOR menu.
However, in order to display the sRGB colors correctly (
γ
=2.2,
6500K), you must set your computer to the sRGB profile and
adjust the brightness ( ) and contrast (
6
) to the numbers shown
in the menu. For information on how to change the brightness
( ) and contrast (
6
), see page 9.
Note
Your computer and other connected products (such as a printer), must be
sRGB compliant.
Restoring the color from the EASY or sRGB menus
The colors of most display monitors tend to gradually lose brilliance
over several years of service. The COLOR RETURN feature found
in the EASY and sRGB menus allows you to restore the color to the
original factory quality levels. The explanation below explains how
to restore the monitor
’s color from the EASY menu.
1
Press the </, buttons to select EASY or sRGB
mode.
2
First press the m/M buttons to select (COLOR
RETURN), then press the , button.
The picture disappears while the color is being restored (about
2 seconds). After the color is restored, the picture reappears
on the screen again.
Notes
• Before using this feature, the monitor must be in normal operation
mode (green power indicator on) for at least 30 minutes. If the monitor
goes into power saving mode, you must return the monitor to normal
operation mode and wait for 30 minutes for the monitor to be ready.
You may need to adjust your computer’s power saving settings to keep
the monitor in normal operation mode for the full 30 minutes. If the
monitor is not ready, the following message will appear.
• The monitor may gradually lose its ability to perform this function due
to the natural aging of the picture tube.
Additional settings (OPTION)
You can manually degauss (demagnetize) the monitor, change the
menu position, and lock the controls.
1
Press the button.
The main MENU appears on the screen.
2
Press the m/M buttons to highlight OPTION and
press the button again.
The OPTION menu appears on the screen.
3
Press the m/M buttons to select the desired
adjustment item.
Adjust the selected item according to the following
instructions.
Degaussing the screen
The monitor is automatically demagnetized (degaussed) when the
power is turned on.
To manually degauss the monitor, first press the m/M
buttons to select (DEGAUSS). Then press the ,
button.
The screen is degaussed for about 2 seconds. If a second degauss
cycle is needed, allow a minimum interval of 20 minutes for the
best result.
Changing the menu’s position
Change the menu
’s position if it is blocking an image on the
screen.
To change the menu’s on-screen position, first press
the m/M buttons to select (OSD H POSITION) for
horizontal adjustment, or (OSD V POSITION) for
vertical adjustment. Then press the </, buttons to
shift the on-screen menu.
Locking the controls
To protect adjustment data by locking the controls, first
press the m/M buttons to select (CONTROL LOCK).
Then press the , button to select ON.
Only the 1 (power) switch, EXIT, and
(CONTROL LOCK)
of the OPTION menu will operate. If any other items are
selected, the mark appears on the screen.
To cancel the control lock
Repeat the procedure above and set (CONTROL LOCK) to OFF.
EASY EXPERT s BGR
:56 :76 FOR s BGR
COLOR
RETURN ON
COLOR
EASY EXPERT s BGR
5000K 6500K 930 K0
50 K00
COLOR
RETURN
AVA I LAB L E
AFTER WARM UP
COLOR
1-5
14
Resetting the adjustments
This monitor has the following three reset methods. Use the 0
(reset) button to reset the adjustments.
Resetting a single adjustment item
Use the , m/M buttons to select the adjustment item you want
to reset, and press the 0 (reset) button.
Resetting all of the adjustment data for the
current input signal
Press the 0 (reset) button when no menu is displayed on the
screen.
Note that the following items are not reset by this method:
• on-screen menu language (page 7)
• adjustment mode in the COLOR menu (EASY, EXPERT,
sRGB) (page 12)
• on-screen menu position (page 13)
• control lock (page 13)
Resetting all of the adjustment data for all input
signals
Press and hold the 0 (reset) button for more than two seconds.
Note
The 0 (reset) button does not function when
(CONTROL
LOCK) is set to ON.
Technical Features
Power saving function
This monitor meets the power-saving guidelines set by VESA,
E
NERGY
S
TAR, and NUTEK. If the monitor is connected to a
computer or video graphics board that is DPMS (Display Power
Management Signaling) compliant, the monitor will automatically
reduce power consumption in three stages as shown below
.
* “Sleep” and “deep sleep” are power saving modes defined by the
Environmental Protection Agency.
** When your computer enters a power saving mode, the input signal is
cut and NO INPUT SIGNAL appears on the screen. After a few
seconds, the monitor enters power saving mode.
Power mode Power consumption 1 (power)
indicator
normal
operation
≤ 145 W green
1 standby ≤ 100 W green and orange
alternate
2 suspend
(sleep)*
≤ 15 W green and orange
alternate
3 active off**
(deep sleep)*
Approx. 1 W orange
power off 0 W off
15
GB
Troubleshooting
Before contacting technical support, refer to this section.
If thin lines appear on your screen
(damper wires)
The lines you are experiencing on your screen are normal for the
Trinitron monitor and are not a malfunction. These are shadows
from the damper wires used to stabilize the aperture grille and are
most noticeable when the screen
’s background is light (usually
white). The aperture grille is the essential element that makes a
Trinitron picture tube unique by allowing more light to reach the
screen, resulting in a brighter, more detailed picture.
On-screen messages
If there is something wrong with the input signal, one of the
following messages appears on the screen.
If NO INPUT SIGNAL appears on the screen
If OUT OF SCAN RANGE appears on the screen
For more information, see “Trouble symptoms and remedies” on
page 16.
1 The input signal condition
NO INPUT SINGAL
This indicates that no signal is input.
2 The remedies
One or more of the following messages may appear on the
screen.
• If ACTIVATE USING PC appears on the screen, try
pressing any key on the computer, and confirm that your
computer’s graphic board is completely seated in the
correct bus slot.
• If CHECK SIGNAL CABLE appears on the screen, check
that the monitor is correctly connected to the computer
(page 6).
Damper wires
MON I TOR I S WORK I NG
I NPUT :
NO I NPU T S I GNAL
ACTI VATE US I NG PC
CHECK S I GNA L CABL E
WH I T E
RED
GREE N
BLUE
I NFORMA T I ON
1 The frequencies of the current input signal
If the monitor recognizes the frequencies of the current input
signal, the horizontal and vertical frequencies are also
displayed.
2 The input signal condition
OUT OF SCAN RANGE
This indicates that the input signal is not supported by the
monitor’s specifications.
3 The remedies
CHANGE SIGNAL TIMING appears on the screen. If you
are replacing an old monitor with this monitor, reconnect the
old monitor. Then adjust the computer’s graphic board to that
the horizontal frequency is between 30
– 109 kHz, and the
vertical frequency is between 48
– 160 Hz.
MON I TOR I S WORK I NG
I NPUT :1 3 0 . 0k H z / H57
OUT OF SCAN RANGE
CHANGE S I GNA L T I M I NG
WH I T E
RED
GREE N
BLUE
I NFORMA T I ON
z
1-6
16
Trouble symptoms and remedies
If the problem is caused by the connected computer or other equipment, please refer to the connected equipment
’s instruction manual.
Use the self-diagnosis function (page 18) if the following recommendations do not resolve the problem.
Symptom Check these items
No picture
If the 1 (power) indicator is not lit • Check that the power cord is properly connected.
• Check that the 1 (power) switch is in the
“on” position.
If the NO INPUT SIGNAL message
appears on the screen, or if the
1 (power) indicator is either orange
or alternating between green and
orange
• Check that the HD15 video input connector
’
s pins are not bent or pushed in.
xProblems caused by the connected computer or other equipment
• The computer is in power saving mode. Try pressing any key on the computer keyboard.
• Check that the computer
’
s power is “on.”
• Check that the graphic board is completely seated in the proper bus slot.
If the NO INPUT SIGNAL and
CHECK SIGNAL CABLE message
appear on the screen, or if the
1 (power) indicator is either orange
or alternating between green and
orange
• Check that the video signal cable is properly connected and all plugs are
firmly seated in
their sockets (page 6).
• Check that the HD15 video input connector
’
s pins are not bent or pushed in.
xProblems caused by the connected computer or other equipment
• Check that the graphic board is completely seated in the proper bus slot.
If the OUT OF SCAN RANGE
message appears on the screen
xProblems caused by the connected computer or other equipment
• Check that the video frequency range is within that speci
fied for the monitor
. If you
replaced an old monitor with this monitor, reconnect the old monitor and adjust the
frequency range to the following.
Horizontal: 30 – 109 kHz
Vertical: 48
–
160 Hz
If no message is displayed and the
1 (power) indicator is green or
flashing orange
• Use the Self-diagnosis function (page 18).
Picture flickers, bounces,
oscillates, or is scrambled
• Isolate and eliminate any potential sources of electric or magnetic
fields such as other
monitors, laser printers, electric fans,
fluorescent lighting, or tele
visions.
• Move the monitor away from power lines or place a magnetic shield near the monitor.
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try turning the monitor 90° to the left or right.
xProblems caused by the connected computer or other equipment
• Check your graphics board manual for the proper monitor setting.
• Confirm that the graphics mode and the frequenc
y of the input signal are supported by this
monitor. 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.
• Adjust the computer
’
s refresh rate (vertical frequency) to obtain the best possible picture.
Picture is fuzzy • Adjust the brightness and contrast (page 9).
• Degauss the monitor* (page 13).
• If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire
cancellation effect or set CANCEL MOIRE to OFF (page 11).
17
GB
* If a second degauss cycle is needed, allow a minimum interval of 20 minutes for the best result. A humming noise may be heard,
but this is not a
malfunction.
Displaying this monitor
’s name, serial number,
and date of manufacture.
While the monitor is receiving a video signal, press and hold the
button for more than five seconds to display this monitor
’s
information box.
If the problem persists, call your service representative and give
the following information.
• Model name: GDM-5403
• Serial number
• Name and specifications of your computer and graphics board.
Picture is ghosting • Eliminate the use of video cable extensions and/or video switch boxes.
• Check that all plugs are
firmly seated in their sockets.
Picture is not centered or sized
properly
• Press the button (page 7).
• Adjust the size (page 10) or centering (page 10). Note that some video modes do not
fill
the screen to the edges.
Edges of the image are curved • Adjust the geometry (page 10).
Wavy or elliptical pattern (moire)
is visible
• Set CANCEL MOIRE to ON and adjust the degree of moire cancellation until the moire is
at a minimum (page 11).
xProblems caused by the connected computer or other equipment
• Change your desktop pattern.
Color is not uniform • Degauss the monitor* (page 13). If you place equipment that generates a magnetic
field,
such as a speaker, near the monitor, or if you change the direction the monitor faces, color
may lose uniformity.
• Adjust the landing (page 11).
White does not look white • Adjust the color temperature (page 12).
Letters and lines show red or blue
shadows at the edges
• Adjust the convergence (page 11).
Monitor buttons do not operate
( appears on the screen)
• If the control lock is set to ON, set it to OFF (page 13).
COLOR RETURN function does
not operate
• Before using this function, the monitor must be in normal operation mode (green power
indicator on) for at least 30 minutes. For more information on using the COLOR
RETURN function, see page 13.
• Adjust the computer
’
s power saving settings to keep the monitor in normal operation
mode for more than 30 minutes.
•
The monitor may gradually lose its ability to perform this function due to the natural aging
of the picture tube.
A hum is heard right after the
power is turned on
• This is the sound of the auto-degauss cycle. When the power is turned on, the monitor is
automatically degaussed for two seconds.
Symptom Check these items
EASY EXPERT s BGR
5000K 6500K 930 K0
50 K00
COLOR
RETURN
AVA I LAB L E
AFTER WARM UP
COLOR
SER NO
:
1234567
MODEL
:
GDM 5403
MANUFACTURED
: 1999-52
INFORMATION
Example
b
1-7
18
Self-diagnosis function
This monitor is equipped with a self-diagnosis function. If there is
a problem with your monitor or computer(s), the screen will go
blank and the 1 (power) indicator will either light up green or
flash orange. If the 1 (power) indicator is lit in orange, the
computer is in power saving mode. Try pressing any key on the
keyboard.
If the 1 (power) indicator is green
1
Disconnect the video input cable or turn off the
connected computer.
2
Press the 1 (power) button twice to turn the monitor
off and then on.
3
Press the , button for 2 seconds before the
monitor enters power saving mode.
If all four color bars appear (white, red, green, blue), the monitor
is working properly. Reconnect the video input cables and check
the condition of your computer(s).
If the color bars do not appear, there is a potential monitor failure.
Inform your service representative of the monitor
’s condition.
If the 1 (power) indicator is flashing orange
Press the 1 (power) button twice to turn the monitor off
and then on.
If the 1 (power) indicator lights up green, the monitor is working
properly.
If the 1 (power) indicator is still flashing, there is a potential
monitor failure. Count the number of seconds between orange
flashes of the 1 (power) indicator and inform your service
representative of the monitor
’s condition. Be sure to note the
model name and serial number of your monitor. Also note the
make and model of your computer and video board.
Specifications
CRT 0.24 mm aperture grille pitch
21 inches measured diagonally
90-degree deflection
FD Trinitron
Viewable image size Approx. 403.8 × 302.2 mm (w/h)
(16 × 12 inches)
19.8" viewing image
Maximum resolution Horizontal: 1600 dots
Vertical: 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 109 kHz
Vertical: 48 to 160 Hz
AC input voltage/current 100 to 240 V, 50 – 60 Hz, 2.0 – 1.0 A
Power consumption Approx. 145 W
Dimensions
Approx. 498 × 491 × 478 mm (w/h/d)
(19
5
/8 × 19
3
/
8
× 18
7
/8 inches)
Mass Approx. 32 kg (70 lb 9 oz)
Plug and Play DDC1/2B/2Bi, GTF**
* Recommended horizontal and vertical timing condition
•
Horizontal sync width duty should be more than 4.8% of total
horizontal time or 0.8
µs, whichever is larger.
• Horizontal blanking width should be more than 2.3
µsec.
• Vertical blanking width should be more than 450
µsec.
** If the input signal is Generalized Timing Formula (GTF)
compliant, the GTF feature of the monitor will automatically
provide an optimal image for the screen.
Design and specifications are subject to change without notice.
12
1
(power) indicator
1-8
GDM-5403
2-1. CABINET REMOVAL
5
4
Four screws
(+ BVTT 4 x 8)
Top cover
SECTION 2
DISASSEMBLY
Push in the tip of a screwdriver
about 5mm to unlock the claw.
Cabinet
Bezel assembly Bezel assembly
3
Cabinet
Cabinet
2
Two claws
1
Two screws
(+ BVTP 4 x 16)
2-2. D BOARD REMOVAL
3 4
Screw
(+ P 3.5 x 20)
5
D board
GND
Two screws
(+ BVTP 3 x 12)
6
7
Video shield
2
Two claws
Four screws
(+ BVTT 4 x 8)
1
Three screws
(+ BVTT 4 x 8)
B
CN504
Two hooks
2
2-1
CN505
A
Open the D block in the direction
of the arrow . and remove of
the arrow .
A
B
2-3. G BOARD REMOVAL
1
Three screws
(+ BVTT 4 x 8)
B
CN654
CN653
CN652
3
Four screws
(+BVTP 3 x 8)
CN602
6
4
G shield
G board
GDM-5403
CN650
GND
A
Two hooks
2
Open the G block in the direction
of the arrow . and remove of
the arrow .
A
B
5
Two printed circuit board holders
2-4. A BOARD, TERMINAL BOARD BRACKET REMOVAL
4
A board (2/2)
GND
3
8
A board (1/2)
7
Two screws
(+ BVTP 3 x 8)
AC inlet (3P)
When installing Terminal
board bracket, be sure to apply
screw lock on 2 spots after
screws (HD15) are fixed.
A board (1/2)
Screw lock
A board (1/2)
6
5
Two screws
(HD15)
2-2
1
screw (M4)
(EXT tooth washer)
Terminal board bracket
2
Three screws
(+BVTT 4 x 8)
GDM-5403
2-5. N BOARD REMOVAL
CN001
CN5002
CN002
CN5003
CN5001
CN010
CN011
2-6. SERVICE POSITION
CN007
2
N board
1
Printed circuit board holder
CAUTION : SHORT
D,G boards
Rear shield
If the claw is hooked,
opening and closing
the board is impossible.
Do not try to do it by force.
G board
(Refer to 2-3.)
If the claw is hooked,
opening and closing
the board is impossible.
Do not try to do it by force.
D board (Refer to 2-2.)
CN602
AC inlet (3P)
2-3
2-7. BEZEL ASSEMBLY, H BOARD REMOVAL
Degaussing coil holder
J board
Two hooks
J board
Claw
2
3
1
Claw
4
Three degaussing
coil holders
Degaussing coil
CN891
When installing J board, put the
behind of the board in two hooks.
1
Before removing the bezel assembly, secure
the picture tube by attaching two screws to
the picture tube shield at the positions
shown with an arrow (diagonal two places)
to prevent the picture tube from falling. (Use
the screws +BVTT 4 x 8 that fix top cover.)
Picture tube shield
5
H board
CN801
2
Four screws
(Tapping screw 5)
GDM-5403
2-8. J BOARD REMOVAL
3
Bezel assembly
4
Two screws
(+ BVWHTP 3 x 12)
2-4
GDM-5403
2-9. PICTURE TUBE REMOVAL
Remove the bezel assembly. (Refer to 2-7)
5
Anode cap
8
Deflection yoke
1
Open the D block
(Refer to 2-2.)
CN4
CN5
GND
4
Three connectors
2
Open the G block
(Refer to 2-3.)
7
Neck assembly
3
A board
6
Picture tube
• REMOVAL OF ANODE-CAP
NOTE: Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon painted on the CRT, after
removing the anode.
• REMOVING PROCEDURES
c
b
a
Anode Button
1 Turn up one side of the rubber cap in
the direction indicated by the arrow A.
2 Using a thumb pull up the rubber cap
firmly in the direction indicated by the
arrow B.
• HOW TO HANDLE AN ANODE-CAP
1 Don’t scratch the surface of anode-caps with sharp shaped
material!
2 Don’t press the rubber hardly not to damage inside of anode-
caps!
A material fitting called as shatter-hook terminal is built in the
rubber.
3 Don’t turn the foot of rubber over hardly!
The shatter-hook terminal will stick out or damage the rubber.
3 When one side of the rubber cap is
separated from the anode button, the
anode-cap can be removed by turning
up the rubber cap and pulling up it in the
direction of the arrow C.
2-5
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