100 to 120 V, 50/60 Hz, 1.7A
220 to 240V, 50/60Hz, 1.2A
444 x 467 x 455 (w/h/d)
1/2
x 18
1/2
x 18 inches)
(17
Approx. 26 kg (57 lb 5 oz)
Input signal
Video
Sync
Analog RGB (75 ohms typical)
0.7 Vp-p, Positive
External HD/VD, Composite
Polarity Free TTL
Video Composite (Sync on Green)
0.3 Vp-p, Negative
Design and specifications are subject to change without notice.
COLOR COMPUTER DISPLA Y
Page 2
MCM-19T1
022-83718162
www.chinadse.org
022-83715667
POWER SAVING FUNCTION
This monitor has three Power Saving modes.
By sensing the absence of a video signal from the
computer, it reduces power consumption as follows:
Power
State
1 Normal O peration
2 Standby (1st mode)
3 Suspend (2nd mode)
4 Active-off (3rd mode)
5 Power-off0W—Off
6 Failure modes——See below
TIMING SPECIFICATION
Ext (H/V)/Polarity
Consumption
≤
130W
≤
15W
≤
15W
≤
8W
MODE123
Resolution (H x V)
Dot Clock (MHz)
HORIZONTAL
Hor. Freq.(kHz)
H-Total
H-Blanking
H-Fron t Porch
H-Sync.
H-Back Porch
H-Active
(µsec)
VERTICAL
Ver. Freq. (Hz)
V-Total
V-Blan king
V-Front Porch
V-Sync.
V-Back Porch
V-Active
(lines)
SYNC.
Int (G)
Ext (CS)/Polarity
Int/Non Int
NOTE:
Required Recovery
approx. 5 sec.Green and orange alternate
approx. 5 sec.Green and orange alternate
approx. 5 sec.Orange
720 x 400
28.321
31.468
31.779
6.356
0.636
3.178
2.542
25.423
70.084
449
400
Yes -/+
Non Int
If no video signal is input to the monitor, the
"NO INPUT SIGNAL" message appears. After about
30 seconds, the Power Saving function automatically
puts the monitor into active-off mode and the
indicator lights up orange. Once the monitor detects
horizontal and vertical sync signals, the monitor
automatically resumes normal operation mode.
TimePower Indicator
—Greenon
1280 x 960
148.500
85.938
11.636
3.017
0.431
1.077
1.508
8.620
85.002
49
13
2
34
No
Yes +/+
No
Non Int
1600 x 1200
1011
51
1
3
47
960
No
No
202.500
93.750
10.667
2.765
0.316
0.948
1.501
7.901
75.000
1250
50
1
3
46
1200
No
Yes +/+
No
Non Int
— 2 —
Page 3
1.5 k
Ω
0.15 µF
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
022-83718162
www.chinadse.org
022-83715667
MCM-19T1
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 poorlysoldered 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 follows.
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
microampere). Leakage current can be measured by any one
of thr ee methods.
1. A commercial leakage tester, such as the Simpson 229
or RCA WT-540A. Follow the manufacturers' instructions
to use these instructions.
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 low voltage scale. The Simpson's 250 and
Sanwa SH-63Trd are examples of passive VOMs that
are suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See
Figure A)
Figure A
WARNING!!
NEVER TURN ON THE POWER IN A CONDITION IN WHICH THE
DEGAUSS COIL HAS BEEN REMOVED.
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 P ARTS WHOSE PART NUMBERS APPEAR
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY
SONY. CIRCUIT ADJUSTMENTS THA T ARE CRITICAL FOR SAFE
OPERATION ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE
PROCEDURES WHENEVER CRITICAL COMPONENTS ARE REPLACED
OR IMPROPER OPERATION IS SUSPECTED.
SAFETY-RELATED COMPONENT W ARNING!!
NE JAMAIS METTRE SOUS TENSION QUAND LA BOBINE DE
DEMAGNETISATION EST ENLEVEE.
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET PAR UNE
MARQUE SUR LES SCHEMAS DE PRINCIPE, LES VUES
EXPLOSEES ET LES LISTES DE PIECES SONT D'UNE IMPORT ANCE
CRITIQUE POUR LA SECURITE DU FONCTIONNEMENT . NE LES
REMPLACER QUE PAR DES COMPOSANTS SONY DONT LE
NUMERO DE PIECE EST INDIQUE DANS LE PRESENT MANUEL OU
DANS DES SUPPLEMENTS PUBLIES PAR SONY. LES REGLAGES
DE CIRCUIT DONT L'IMPORTANCE EST CRITIQUE POUR LA
SECURITE DU FONCTIONNEMENT SONT IDENTIFIES DANS LE
PRESENT MANUEL. SUIVRE CES PROCEDURES LORS DE CHAQUE
REMPLACEMENT DE COMPOSANTS CRITIQUES, OU LORSQU'UN
MAUVAIS FONTIONNEMENT SUSPECTE.
Do not install the monitor in the following places:
• on surfaces (rugs, blankets, etc.) or near materials (curtains,
• near heat sources such as radiators or air ducts, or in a place
subject to direct sunlight
transformer or high voltage power lines
• 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
• near or on an electrically charged metal surface
liquid, do not use any type of cleaner containing an anti-static
solution or similar additive as this may scratch the screen’s
Maintenance
coating.
• Clean the screen with a soft cloth. If you use a glass cleaning
• Do not rub, touch, or tap the surface of the screen with sharp or
abrasive items such as a ball point pen or screwdriver. This type
of contact may result in a scratched picture tube.
moistened with a mild detergent solut ion. D o not use any type of
abrasive pad, scouring powder or solvent, such as alcohol or
benzene.
• Clean the cabinet, panel and controls with a soft cloth lightly
Transportation
When you transport this monitor for repair or shipment, use the
original carton and packing materials.
— 5 —
Page 6
MCM-19T1
022-83718162
www.chinadse.org
022-83715667
If necessary, use the BRIGHTNESS buttons to select a specific
3
Customizing Your Monitor
The OSD (On-screen Display) System
(RESET) button while the item’s adjustment OSD is displayed.
item.4Adjust the monitor setting using the BRIGHTNESS and
CONTRAST buttons.
• To reset the current item to its original setting, press the
Introducing the OSD System
You can adjust most of the monitor’s settings using the OSDs (On-
screen Display). All of the OSDs in this illustration are described on
displayed, only the current adjustment item is reset. For
additional information on using the reset function, see the
“Resetting the Adjustments” section on page 10.
When you finish adjusting the setting, press the MENU button to
return to the MENU OSD.
Press the MENU button twice to return to normal viewing.
• Resetting: If you press the RESET button while an OSD is
5
the following pages in order. You can access any of these OSDs
from the MENU OSD. To adjust monitor settings using the OSDs,
follow the steps below:
after 30 seconds.
• The each of the adjustment’s OSD automatically disappears
select menu items.
items and to adjust settings.
Press the MENU button to display the MENU OSD.2Highlight the desired OSD using the BRIGHTNESS buttons and
Basic controls:
• Use the (MENU) button to display the MENU OSD and to
• Use the (BRIGHTNESS) v/V buttons to highlight menu
press the MENU button again.
To adjust the monitor settings:
1
MENU
OK
MENU
EXIT
CENTER
US
SIZE
GEOMETRY
ZOOM
COLOR
CONVERGENCE
OSD POSITION
OPTION
GRAPHIC ENHANCEMENT
Horizontal/Vertical
frequencies for
current input signal
1280 X 1024
80.0kHz/ 75Hz
Resolution for current
input signal
GEOMETRY
GEOMETRY
3
SIZE
SIZE
2
CENTER
CENTER
1
26
ROTATION
CONVERGENCE
6
26
73
73
COLOR
5
26
ZOOM
4
73
CONVERGENCE
2
1
COLOR
ZOOM
9300K
26
ZOOM
STANDARD MODE
GRAPHICS/VIDEO MODE
PRESENTATION MODE
GRAPHIC ENHANCEMENT
9 GRAPHIC ENHANCEMENT
ON
OPTION
OPTION
8
OSD POSITION
OSD POSITION
7
MANUAL DEGAUSS
26
73
6
5
(CONTRAST)
6
or
v/V
2626
BRIGHTNESS/CONTRAST
buttons.
Press the (BRIGHTNESS)
B/b
Adjusting the Picture Brightness
The BRIGHTNESS/CONTRAST OSD appeears.
and Contrast
1
To adjust the brightness.
Press the (BRIGHTNESS) v/V buttons.
To adjust the contrast.
Press the 6 (CONTRAST) B/b buttons.
2
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 Auto Sizing and Centering button.
The picture automatically fills the screen.
Note
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).
Getting StartedCustomizing Your Monitor
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.
90°
5°
15°
90°
5
10
987
1234
11 12 13 14 15
6
Video Connector
Pin No. SignalPin No. Signal
9Not used (no pin)
Sync on Green)
1Red8Blue Ground
2Green (Composite
3Blue10Ground
4Ground11Ground
15SCL (serial clock)
5CPU Snense12SDA (serial data)
6Red Ground13Horizontal Sync
7Green Ground14Vertical Sync
— 6 —
Page 7
MCM-19T1
022-83718162
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022-83715667
buttons to adjust the
v/V
buttons to highlight CONV and
buttons to adjust the horizontal
v/V
B/b
6
buttons to highlight OSD and
v/V
buttons to adjust the horizontal
buttons to adjust the vertical
B/b
6
v/V
buttons to highlight the desired
buttons to highlight OPTION and
v/V
v/V
picture (CONV)
6 Adjusting the quality of the
(COLOR)
Customizing Your Monitor
5 Adjusting the color of the picture
Press the MENU button.
The main MENU appears on the screen.2Press the
press the MENU button again.
The CONV settings allow you to adjust the quality of the picture by
eliminating red or blue shadows around letters, characters and lines.
Both settings are stored in memory for all input signals.
1
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 colors to a printed picture’s colors.
The CONVERGENCE menu appears on the screen.3Press the
Press the MENU button.
The main MENU appears on the screen.2Press the
This setting is stored in memory for all input signa ls.
1
convergence, or the
vertical convergence.
buttons to highlight COLOR and
v/V
press the MENU button again.
The COLOR menu appears on the screen.3Press the
(OSD)
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
7 Adjusting the OSD position
buttons to select a color
v/V
temperature.
The preset color temperatures are 1 (9300K) and 2
(5000K). Since the default setting is 9300K, the whites change
Press the MENU button.
The main MENU appears on the screen.2Press the
This setting is stored in memory for the current input signal.
1
2
1
COLOR
from a bluish hue to a reddish hue as the temperature is lowered
to 5000K.
You can also fine tune the color temperature by selecting in
step 2 above, and using the 6 B/b buttons to adjust the color
temperature manually.
US
press the MENU button again.
The OSD POSITION menu appears on the screen.3Press the
VARIABLE
position or the
position.
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
8 Additional settings (OPTION)
You can manually degauss (demagnetize) the screen, lock the
controls, change the OSD language, restore the color image, and
cancel the moire.
VARIABLE
COLOR
If you are using the Presentation or Graphic/Video mode, the
following COLOR OSD appears when “ COLOR” is
selected.
Press the MENU button.
The main MENU appears on the screen.2Press the
press the MENU button again.
The OPTION menu appears on the screen.3Press the
adjustment item.
Adjust the selected item according to the following instructions.
The OSD automatically disappears after about 30 seconds. To
1
This OSD allows you to adjust the color temperature between
11,000K to 9,300K.
Press the 6 B/b buttons to adjust the color temperature.
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
close the OSD, press the MENU button again.
8
7
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
PIN BALANCE
KEYSTONE
top of the screen
Enlarging or reducing the picture
(ZOOM)
KEY BALANCE
4
Press the MENU button.
The main MENU appears on the screen.2Press the v/V buttons to highlight ZOOM and
This setting is stored in memory for the current input signal.
1
press the MENU button again.
The ZOOM menu appears on the screen.3Press the right 6 b button to enlarge the picture or the
left 6 B button to reduce the picture.
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
Note
Adjustment stops when either the horizontal or vertical size reaches its
maximum or minimum value.
Customizing Your Monitor
picture (GEOM)
3 Adjusting the shape of the
The GEOMETRY settings allow you to adjust the rotation and
Press the MENU button.
shape of the picture.
The main MENU appears on the screen.2Press the
The rotation setting is stored in memory for all input signals. All
other settings are stored in memory for the current input signal.
1
v/V buttons to highlight GEOM and
ROTATION
press the MENU button again.
The GEOMETRY menu appears on the screen.3First press the v/V buttons to select the desired
adjustment item. Then press the 6 B/b buttons to
adjust the setting.
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
SelectTo
PINCUSHION
buttons to adjust the
B/b
6
buttons to highlight CENTER
v/V
picture (CENTER)
Press the MENU button.
The main MENU appears on the screen.2Press the
and press the MENU button again.
Adjusting the Settings
1 Adjusting the centering of the
This setting is stored in memory for the current input signal.
1
The CENTER menu appears on the screen.3Press the
buttons to adjust the vertical
v/V
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
2 Adjusting the size of the picture
(SIZE)
This setting is stored in memory for the current input signal.
centering, and the
horizontal centering.
buttons to highlight SIZE and
buttons to adjust the vertical size,
v/V
Press the MENU button.
The main MENU appears on the screen.2Press the
1
buttons to adjust the horizontal size.
v/V
B/b
6
press the MENU button again.
The SIZE menu appears on the screen.3Press the
and the
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
— 7 —
Page 8
MCM-19T1
022-83718162
www.chinadse.org
022-83715667
(CONTOL LOCK) is
Resetting a specific adjustment
Resetting the adjustments
ENHANCEMENT OSD
Customizing Your Monitor
9 Using the GRAPHIC
Navigate through the on-screen menus to select the adjustment item
Press the MENU button.
The main MENU appears on the screen.2Press the
This setting is stored in memory for the current input signal.
1
Customizing Your Monitor
(Green power indicator) 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 help keep the monitor
in normal operation mode for the full 30 minutes. If the monitor is not
Note
• Before using this feature, the monitor must be in normal operation mode
ready, the following message will appear.
Resetting all of the adjustments
you want to reset, and press the RESET button. You can do this
buttons to highlight GRAPHIC
v/V
OPTION
for the current input signal
while you are adjusting an item.
button to select the mode.
v
ENHANCEMENT and press the MENU button again.
GRAPHIC ENHANCEMENT OSD appears.3Press the
AVAILABLE
AFTER
WARM UP
COLOR
RETURN
STANDARD MODE
• The monitor may gradually lose its ability to perform this function due to
Press the 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 9)
• on-screen menu position (page 8)
PRESENTATION MODE
GRAPHICS/VIDEO MODE
the natural aging of the picture tube.
Cancelling the moire
Resetting all of the adjustments
To turn the moire cancellation function on or off, first
• control lock (page9)
buttons to highlight (CANCEL
v/V
press the
The STANDARD MODE is ideal for spreadsheets, word
buttons to turn the
B/b
6
MOIRE). Then press the
processing, and other text oriented applications.
moire cancellation ON or OFF.
for all input signals
Press and hold the reset button for more than two seconds when no
The PRESENTATION MODE is useful for presentation programs
that require vivid colors.
US
Adjusting the amount of the moire cancellation
Before you can adjust this setting, the Cancel Moire setting must be
turned ON.
Resetting all of the adjustment
menu is displayed on the screen. This resets everything to the
factory preset mode.
The GRAPHICS/VIDEO MODE gives movies and games
enhanced visual appeal by increasing the sharpness and brightness.
The selected mode indication appears on the screen fo r about th ree
seconds.
If the screen appears too white, adjust the color temperature
buttons to adjust the amount of
B/b
6
buttons to highlight (MOIRE ADJUST).
v/V
To adjust the amount of moire cancellation, first press
the
Then press the
moire cancellation until the moire effect is at a
minimum.
* Moire is a type of natural interference which produces soft, wavy lines on
data to the factory presets
Press and hold the reset button for more than five seconds. Thi s resets
everything to the factory presets including the input selection.
Note
The PRESENTATION MODE and GRAPHICS/VIDEO MODE may
produce ghost images when displaying text oriented applications. These
(see “Adjusting the color of the picture (COLOR)” on page 8).
Example of moire
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 RESET button does not function when
set to ON.
modes change the brightness of the picture dynamically according to
changes in moving pictures. If ghost images appear, set the Video
Enhancement Mode to STANDARD MODE.
10
9
Restoring the Color Image
buttons
v/V
ON
COLOR
OPTION
button.
b
To restore the image, first press the
to select (COLOR RETURN). Then press the right
6
A white rectangle appears in the center of the screen while the
The color of most display monitors tend to gradually lo se brilliance
after several years of service. The Color Ret ur n fe at ur e al lo ws you
image is being restored (about two seconds).
to restore the color to the original factory preset levels.
RETURN
button to
b
buttons to highlight
v/V
To protect adjustment data by locking the controls,
first press the
Locking the controls
6
(CONTROL LOCK). Then press the right
turn the lock ON.
• FRA
• ESP
• NLD
• RUS
• ENG
• DEU
• ITA
• SWE
• JPN
LANGUAGE
OPTION
buttons to select the desired
B/b
6
buttons to highlight (LANGUAGE). Then
To cancel the control lock
Repeat the procedure above and set (CONTROL LOCK) to OFF.
v/V
To change the language of the OSD, first press the
press the
language.
Changing the OSD language
• ENG: English
• FRA: French
•DEU: German
• ESP: Spanish
•ITA: Italian
• NLD: Dutch
• SWE: Swedish
• RUS: Russian
• JPN: Japanese
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.
button.
b
6
buttons to highlight (MANUAL DEGAUSS).
v/V
To manually degauss the monitor, first press the
Then press only the right
The monitor is degaussed for about three seconds. If a second
degauss cycle is needed, allow a minimum interval of 20
Degaussing the monitor
The monitor is automatically degaussed (demagnetized) when the
power is turned on.
minutes for the best result.
— 8 —
Page 9
Additional Information
US
022-83718162
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MCM-19T1
13
effect (page 9) or set CANCEL MOIRE to OFF.
Excel.
• Degauss the monitor* (page 9).
• If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire cancellation
• Check that all plugs are firmly seated in their sockets.
screen to the edges.
• Check the Graphic Enhancement mode, if you are using a still picture application such as
• Press the Auto Sizing and Centering button (page 5).
• Adjust the size (page7) or centering (page 7). Note that some video modes do not fill the
as a speaker, near the monitor, or if you change the direction the monitor faces, color may
lose uniformity.
Problems caused by the connected computer or other equipment
• Cancel the moire (page 9).
x
• Change your desktop pattern.
• Adjust the color temperature (page 8).
power indicator) for at least 30 minutes. See page 9 for detailed information about Image
Restoration.
the picture tube.
• Adjust the convergence (page 8).
• In order to keep the monitor “on”, you may need to check the PC’s power saving setting.
• The monitor may gradually lose its abili ty to perf orm this func tion due to the natur al aging of
is automatically degaussed for three seconds.
• This is the normal sound of the auto-degauss cycle. When the power is turned on, the monitor
AVAILABLE
AFTER
WARM UP
COLOR
Picture is fuzzy• Adjust the brightness and contrast (page 5).
Picture is ghosting• Eliminate the use of video cable extensions and/or video switch boxes.
Picture is not centered or sized
properly
Edges of the image are curved• Adjust the geometry (page 7).
Wavy or elliptical pattern (moire) is
visible
Color is not uniform• Degauss the monitor* (page 9). If you place equipment that generates a magnetic field, such
White does not look white
SymptomCheck these items
MONITOR IS WORKING
CHECK SIGNAL CABLE
RED
GREEN
BLUE
WHITE
INFORMATION
MONITOR IS WORKING
OUT OF SCAN RANGE
INFORMATION
Letters and lines show red or blue
OPTION
shadows at the edges
Monitor buttons do not operate• If the control lock is set to ON, set it to OFF (page 9).
COLOR RETURN does not function • COLOR RETURN does not work unless the monitor has been in normal operation (Green
RETURN
A hum is heard right after the
power is turned on
* If a second degauss cycle is needed, allow a minimum interval of 20 minutes for the best res ult. A hum ming nois e may be hea rd, but this is not a malfunction.
their sockets.
• Check that the 1 (power) switch is in the “on” position.
• Check that the video signal cable is properly connected and all plugs are firmly seated in
• Check that the HD15 video input cable’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 ke y on the computer keyboard.
Out of Scan Range
This message indicates that the current input signal is not appropriate by the monitor’s specificatons.
Additional Information
Warning Messages
If there is something wrong with the input signal, one of the following messages appears.
1
Check signal cable (self test pattern)
This message indicates that there are no input signal is received, or the video cable is not connected.
2
To solve these problems, see the “Troubleshooting” section below.
Troubleshooting
Before calling service technician regarding picture quality related questions, please press and hold (RESET) button for 6 seconds. This
resets everything to the factory presets including the input selection.
If the 1 (power) indicator is not lit• Check that the power cord is properly connected.
If the CHECK SIGNAL CABLE
message appears on the screen, or if
the 1 (power) indicator is either
orange or alternating between green
SymptomCheck these items
No picture
If the problem is caused by the connected computer or other equipment, please refer to the connected equipment’s instruction manual.
and orange
an old monitor with this monitor, reconnect the old monitor and adjust the frequency range to
the following:
Horizontal: 30–96 kHz
Vertical: 48–120 Hz
• Check that the computer’s power is “on.”
• Check that the graphic video board is completely seated in the proper bus slot.
xProblems caused by the connected computer or other equipment
• Check that the video frequency range is within that specified for the monitor. If you replaced
If the OUT OF SCAN RANGE
message appears on the screen
monitors, laser printers, electric fans, fluorescent lighting and televisions.
• Isolate and eliminate any potential sources of electric or magnetic fields such as other
• 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.
Picture flickers, bounces,
oscillates, or is scrambled
supported by this monitor (Appendix). Even if the fre quency is within the proper range,
some graphic video boards may have a sync pulse that is too narrow for the monitor to sync
• Try turning the monitor 90° to the left or right.
correctly.
xProblems caused by the connected computer or other equipment
• Check your graphic video board manual for the proper monitor setting.
• Confirm that the graphics mode (VESA, VGA, etc.) and the frequency of the input signal are
• Adjust the computer’s refresh rate (vertical frequency) to obtain the best possible picture.
12
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MCM-19T1
022-83718162
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SECTION 2
DISASSEMBLY
2-1. CABINET REMOV AL
Two claws
3
Cabinet
2
Two screws
1
(BVTP 4 x 16)
2-3. D, A, H and N BOARD REMOV AL
2-2. SERVICE POSITION
PUSH
PUSH
1
A board
1
H board
(additional board)
2
A board
3
Five screws
(BVTP 3 x 12)
rotate 180º
3
D board
1 When the D-board is
placed in service
position, the Safety Earth
Wire (green and yellow
wire) is disconnected.
2 After service is
completed and the
D-board reinstalled, the
Safety Earth Wire must
be reattached to the
chassis with the proper
screw. This must be
confirmed before any
subsequent procedures
are attempted.
9
H board
4
One screw
(BVTT 4 x 8)
5
Two Cable stoppers
6
Two screws
(BVTP 3 x 12)
7
Cable bracket
8
2
N board
D board
10
Holder
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Page 11
2-4. PICTURE TUBE REMOVAL
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8
Demagnetization coil
7
Tension spring
6
A board
5
Neck assy
4
Deflection yoke
3
Four screws
(Tapping screw 5)
Picture tube shield
2
9
Two screws
10
Stand assy
(D board)
MCM-19T1
(BVTP 4 x 16)
1
Anode cap
Cushion
REMOVAL OF THE 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.
REMOVAL PROCEDURES
a
1. Turn up one side of the rubber cap in
the direction indicated by arrow a .
2. Use your thumb to pull the rubber cap
firmly in the direction indicated by
arrow b .
b
Anode Button
3. When one side of the rubber cap separates from the anode button, the anode-cap can be removed by turning the
rubber cap and pulling it in the direction
of arrow c .
HOW TO HANDLE AN ANODE-CAP
1. Do not use sharp objects which may cause damage to the surface
of the anode-cap.
2. Do not squeeze the rubber covering too hard to avoid damaging
the anode-cap. A material fitting called a shatter-hook terminal is
built into the rubber.
3. Do not force turn the foot of the rubber cover. This may cause the
shatter-hook terminal to protrude and damage the rubber.
c
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MCM-19T1
022-83718162
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022-83715667
SECTION 3
SAFETY RELA TED ADJUSTMENT
When replacing parts shown in the table below, the following
operational checks must be performed as a safety precaution
against X-ray emissions from the unit.
Allow the unit to warm up for one minute prior to checking
the following conditions:
HV Regulator Check
1)Input white cross hatch signal. (fH = 94 kHz)
2)Minimum CONT and BRT controls.
3)Cut off Screen VR (G2).
4)Input voltage: 120 ± 2 VAC
5)Confirm that the voltage is within the voltage range
shown below.
Standard voltage: 27.0KV ± 0.2KV
6)When replacing components identified by
sure to recheck the High V oltage.
7)Verify the High Voltage as shown above (27.0KV
+0.2KV) is within specification. If not, set H. SIZE data
at minimum (-127) and then adjust RV904 on "D" Board.
8)After adjusting the High Voltage within specification,
put the RV cover on RV904 as shown below and apply
sufficient amount of RTV around RV904.
RV904
, make
HV Hold-Down Check
1) Using an external DC Power supply, apply the
voltage shown below between cathode of D908 on
"D" Board and GND, and confirm that the HV HoldDown circuit works. (Raster disappears)
Apply DC Voltage: 21.5 ± 0.5 VDC
Check Condition
• Input voltage : 120 ± 2 VAC
• Input signal : (fH = 94 kHz), White Cross Hatch
• Controls : CONT (max) & BRT (center)
•B+ Voltage: 181 ± 4.0 VDC
Beam Protector Check (Software logic)
1) Using an external current source, apply 1.30 ± 0.05 mA
between pin 11 of FBT (T501) and GND, and
confirm that the voltage at CN801 pin 1 is 2.25
VDC or less.
Check Condition
• Input voltage : 120 ± 2 VAC
• Input signal : (fH = 94 kHz), White Cross Hatch
• Controls: CONT (max) & BRT (center)
B± Maximum Check
1)Input white cross hatch (fH = 94 kHz) signal.
2)CONT (max) & BRT (center)
3)Input voltage: 120 ± 2 VAC
Note: Use NF power supply or make sure that
distortion factor is 3% or less.
4)Confirm that the voltage is within the voltage range
shown below.
Standard voltage: 181 ± 4.0 VDC
RV904
— 12 —
Page 13
MCM-19T1
Set the
finger
022-83718162
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SECTION 4
ADJUSTMENTS
Connect the communication cable of the connector located on the D board on the monitor. Run the service software and then follow
these instructions.
1-690-391-21
1
IBM AT Computer
as a Jig
D-sub
(9 Pin [female])
*The parts above ( ~ ) are necessary for DAS adjustment.
Allow a 30 minute warm-up period prior to making the following adjustments:
Landing Rough Adjustment
1. Enter the full white signal.
2. Adjust the contrast to the maximum.
3. Input full green signal.
4. Moving the DY backward, and adjust coarsely the purity
magnet sothat a green raster positions in the center of screen.
5. Moving the DY forward, adjust so that an entire screen
becomes pure green.
6. Adjust the tilt of DY, and tighten lightly with a clamp.
Landing Fine Adjustment
1. Place the set in the Helmholtz coil.
2. Enter a green signal only.
3. Degauss the entire screen with hand-degausser. Then autodegauss it.
4. Attach a wobbling coil to the specified position of CRT
neck.
5. Attach a landing adjuster sensor on the CRT.
6. Using a landing checker, adjust the DY position, purity,
tilt of DY.
7. Clamp the DY screw.
Clamping torque: 22 ± 2 kgcm (2.2 ± 0.2 N.m)
mini Din
(8Pin)
1
A-1500-819-A
2
Interface Unit
3
4 Pin
3-702-691-01
3
Connector Attachment
To BUS CONNECTOR
4 Pin4 Pin
Convergence Fine Adjustment
Set DY four-pole magnet to mechanical center
before adjustment.
This should be prime mode.
Mechanical
Center
Neck Assy
6-pole Mg
1. Receive R.B. cross-hatch.
2. Adjust H.STAT and V.STAT at four-pole magnet.
P.S. Mg
4-pole Mg
XBV
DY
CRT
Convergence Rough Adjustment
1. All digital convergence data should be zero by MCP.
2. Enter the white crosshatch signal.
3. Adjust roughly the horizontal and vertical
convergence at four-pole magnet.
4. Adjust roughly HMC and VMC at six-pole
magnet.
— 13 —
Four Pole Magnet
Page 14
MCM-19T1
022-83718162
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022-83715667
3. Receive White cross-hatch.
4. Adjust HMC and VMC at six-pole magnet.
Six Pole Magnet
5. Receive R.B. cross-hatch.
6. Adjust H.TILT by swinging the DY neck right and left.
7. Adjust XCV with XCV core.
XCV movement
8. Adjust V.TILT with TLV VR.
TLV movement
Vertical and Horizontal Position and Size
Specification
a
a < 3.0 mm
b < 3.0 mm
a
A
A B
B
bb
Convergence Specification
C
A
Focus adjustment
Adjust focus (V) and focus (H) for optimum focus.
264 352
Horizontal and Vertical
A < 0.25mm
B
B
< 0.30mm
C
< 0.35mm
9. Adjust Y.CROSS with YCH VR.
YCH movement
RB
10. Paint lock the four-pole and six-pole Mg.
VR Adjustment on DY
XCV
YCH
Zero Position NECK Ass'y
TLV
FBT
Focus (V)
Focus (H)
— 14 —
Page 15
Digital Convergence Adjustment
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Set CONV_SWITCH_NDX to 3
MCM-19T1
Step 1
Adjust area "A" as follows:
Adjust H-STAT and V-STAT with 4-poles magnet.
Adjust HMC and VMC with 6-poles magnet.
Step 2
Adjust area "B" as follows:
Step 4
Adjust area "03" - "83" with the following register:
"X DYNAMIC CONV RX03" - "X DYNAMIC CONV RX83"
"Y DYNAMIC CONV RY03" - "Y DYNAMIC CONV RY83"
Step 5
Adjust area "0" - "81" with the following register:
"X DYNAMIC CONV RX01" - "X DYNAMIC CONV RX81"
"Y DYNAMIC CONV RY01" - "Y DYNA MIC CONV RY81"
Correct H-TILT with TLH correction plate.
Correct XCV with XCV core.
Step 3
C
C
C
C
Adjust area "C" with the following register:
"X_ST ATIC_CONV_P ARA_T OP"
"X_STATIC_CONV_P ARA_BTM"
"Y_STATIC_CONV_PARA_TOP"
"Y_ST ATIC_CONV_PARA_BTM"
Step 6
Adjust area "05" - "85" with the following register:
'X DYNAMIC CONV RX05" - "X DYNAMIC CONV RX85"
"Y DYNAMIC CONV RY05" - "Y DYNAMIC CONV RY85"
Step 7
Adjust area "02" - "82" with the following register:
"X DYNAMIC CONV RX02" - "X DYNAMIC CONV RX82"
"Y DYNAMIC CONV RY02" - "Y DYNAMIC CONV RY82"
Step 8
Adjust area "04" - "84" with the following register:
"X DYNAMIC CONV RX04" - "X DYNAMIC CONV RX84"
"Y DYNAMIC CONV RY04" - "Y DYNAMIC CONV RY84"
— 15 —
Page 16
MCM-19T1
022-83718162
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022-83715667
NOTES:
— 16 —
Page 17
NOTES:
022-83718162
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022-83715667
MCM-19T1
— 17 —
Page 18
MCM-19T1
022-83718162
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022-83715667
NOTES:
— 18 —
Page 19
5.1 BLOCK DIAGRAM
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MCM-19T1
SECTION 5
DIAGRAMS
5-2. CIRCUIT BOARDS LOCATION
A
N
H
5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
• All capacitors are in mF unless otherwise noted. pF: mmF 50 WV
or less are not indicated except for electrolytic.
• Indication of resistance, which does not have one for rating
electrical power, is as follows.
D
• When replacing parts shown in the table below,
be sure to perform the safety related adjustment.
D - BOARD
Pitch: 5 mm
Rating electrical power 1/4 W (CHIP: 1/10 W)
• All resistors are in ohms.
•
•
•
•
• All variable and adjustable resistors have characteristic curve B,
•
•
• The components identified by
• When replacing components identified by
: nonflammable resistor.
: fusible resistor.
: internal component.
: panel designation and adjustment for repair.
unless otherwise noted.
: earth-ground
: earth-chassis.
in this basic schematic diagram
have been carefully factory-selected for each set in order to satisfy
regulations regarding X-ray radiation. Should replacement be required,
replace only with the value originally used.
, make the necessary
adjustments by using RV904 (
The components identified by shading and
mark
with part number specified.
Les composants identifies per un trame et une marque
The components identified by in this manual
have been carefully factory-selected for each
set in order to satisfy regulations regarding
X-ray radiation. Should replacement be
required, replace only with the value originally
used.
• Items marked "
they are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
R6051-215-469-00METAL OXIDE100K1%1/4W
R6061-215-423-00METAL OXIDE1.2K1%1/4W
R6071-249-397-11CARBON225%1/4W F
R6081-215-439-00METAL OXIDE5.6K1%1/4W
R6091-216-381-11METAL OXIDE0.225%3W F
R6101-249-417-11CARBON1K5%1/4W
R6111-215-469-00METAL OXIDE100K1%1/4W
R6121-215-479-00METAL OXIDE270K1%1/4W
R6131-216-489-11METAL OXIDE27K5%3W F
R6151-202-933-61FUSIBLE0.110%1/2W F
R6191-215-929-11METAL OXIDE100K5%3W F
R6211-211-874-11FUSIBLE0.1210%1/2W
R6221-211-874-11FUSIBLE0.1210%1/2W
R6301-249-417-11CARBON1K5%1/4W
R6311-249-417-11CARBON1K5%1/4W
R6681-247-895-91CARBON470K5%1/4W
R6701-249-417-11CARBON1K5%1/4W
R6711-249-417-11CARBON1K5%1/4W
R6721-249-403-11CARBON685%1/4W
R7011-216-426-11METAL OXIDE825%1W F
R7021-216-369-00METAL OXIDE15%2W F
R7031-216-426-11METAL OXIDE825%1W F
R7041-216-369-00METAL OXIDE15%2W F
R7051-215-429-00METAL OXIDE2.2K1%1/4W
R7061-215-437-00METAL OXIDE4.7K1%1/4W
R7071-247-863-91CARBON22K5%1/4W
R7081-215-859-00METAL OXIDE225%1W F
R7091-249-383-11CARBON1.55%1/W F
R7101-215-436-00METAL OXIDE4.3K1%1/4W
R7111-215-429-00METAL OXIDE2.2K1%1/4W
R7181-216-423-11METAL OXIDE275%1W F
R7191-215-863-11METAL OXIDE1005%1W F
R7231-220-827-91REGISTER560K5%1/2W
R7241-215-433-00METAL OXIDE3.3K1%1/4W
R7271-249-429-11CARBON10K5%1/4W
The components identified by shading
and mark
Replace only with part number specified.
are critical for safety.
Note:
The components identified by in this manual have been
carefully factory-selected for each set in order to satisfy
regulations regarding x-ray radiation. Should replacement
be required, replace only with the value originally used.
D
R7381-249-441-11CARBON100K5%1/4W
R7401-216-353-00METAL OXIDE2.25%1W F
R7411-215-451-00METAL OXIDE18K1%1/4W
R7421-249-397-11CARBON225%1/4W F
R7441-215-437-00METAL OXIDE4.7K1%1/4W
R7451-249-385-11CARBON2.25%1/4W
R7471-249-393-11CARBON105%1/4W F
R7481-215-449-00METAL OXIDE15K1%1/4W
R7491-215-437-00METAL OXIDE4.7K1%1/4W
R7501-215-858-00METAL OXIDE155%1W F
R7511-215-863-11METAL OXIDE1005%1W F
R7521-216-353-00METAL OXIDE2.25%1W F
R7531-249-429-11CARBON10K5%1/4W
R7541-249-429-11CARBON10K5%1/4W
R7551-249-426-11CARBON5.6K5%1/4W
R7591-249-377-11CARBON0.475%1/4W F
R7601-249-377-11CARBON0.475%1/4W F
R7751-215-864-00METAL OXIDE1505%1W F
R8121-215-461-00METAL OXIDE47K1%1/4W
R8131-215-437-00METAL OXIDE4.7K1%1/4W
R8151-249-429-11CARBON10K5%1/4W
R8161-249-405-11CARBON1005%1/4W F
R8171-249-405-11CARBON1005%1/4W F
R8181-249-405-11CARBON1005%1/4W F
R8191-249-405-11CARBON1005%1/4W F
R8201-249-405-11CARBON1005%1/4W F
R8211-249-405-11CARBON1005%1/4W F
R9011-249-429-11CARBON10K5%1/4W
R9091-219-748-11CARBON4.7K5%1/2W
R9101-249-405-11CARBON1005%1/4W F
R9111-249-397-11CARBON225%1/4W F
R9131-215-445-00METAL OXIDE10K1%1/4W
R9141-215-437-00METAL OXIDE4.7K1%1/4W