Sony CPD-2403 User manual

SPECIFICATIONS
D99CHASSIS
SERVICEMANUAL
CPD-2403
CPD-2403
AEP Model
ChassisNo.SCC-L29R-A
TRINITRON®COLOR MONITOR
Picture tube
Video image area
Resolution
Standard image
area
Input signal
Video
Sync
0.24-0.25 mm aperture grill pitch
17 inches measured diagonally
90-degree deflection
(16" maximum viewing image)
Approx. 327 X 243 mm (w/h)
(127/8 x 95/8 inches)
Horizontal: Max. 1600 dots
Vertical: Max. 1200 lines
Approx. 312 x 234 mm (w/h)
(121/4 x 91/4 inches)
Analog RGB (75 ohms typical)
0.7 Vp-p, ±5%, Positive
Separate HD/VD,
TTL Polarity Free
External Composite,
TTL Polarity Free (2K ohms impedance)
P ower Consumption
Deflection frequency
AC input voltage /
current
Dimensions
Mass
Maximum130W
Minimum95W
Horizontal: 30 to 94 KHz
Vertical: 48 to 120 Hz
100 to 120 V, 50/60 Hz, 1.7A
220 to 240V, 50/60Hz, 0.9A
404 x 414 x 420mm (w/h/d)
(1515/16 x 163/8 x 161/2 inches)
Approx. 18.8 kg (41 lb 7 oz.)
Design and specifications are subject to change without notice.

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CPD-2403
POWER MANAGEMENT
Thepowersaving mode complies withtheVESA DisplayPowerManagementSignalingstandard. Each
state of power management shall be activated by the host computer terminating the appropriate sync
signals. Blanking the video must precede termination of the sync signals. The elapsed time counter
shall also be controlled by the host computer. Reactivation of the monitor shall be accomplished from
the host computer by re-establishing the normal sync signal.
When a failure occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the
possible cause of the problem. If there is more than one error, the lamp will identify the first of the
problem areas.
Power consumption Screen Horizontal Vertical Power Recovery time indicator
mode (video) sync signal sync signal consumption
1 Normal operation active yes yes < 130 W -- Green
2 Standby (1st mode) blank no yes < 15 W Approx. 3 sec. Green and Orange
Alternate
3 Suspend (2nd mode) blank yes no < 15 W Approx. 3 sec. Green and Orange
Alternate
4 Active-off (3rd mode) blank no no < 3 W Approx. 10 sec. Orange
5 Power-off -- -- -- 0 W -- Off
Status Area of Failure LED Indication
1 Failure 1 HV or +B Amber (0.5 second)/Off (0.5 second)
2 Failure 2 H Stop or V Stop Amber (1.5 second)/Off (0.5 second)
3 Failure 3 ABL Amber (0.5 second)/Off (1.5 second)
4 Aging/Self Test Amber (0.5 second)/Off (0.5 second)/
Green (0.5 second)/Off (0.5 second)
TIMING SPECIFICATION
SELF DIAGNOSIS FUNCTION
TIMING SPECIFICATION Primary Mode
MODE 123 4 5 6
Resolution (H x V) 640 x 480 720 x 400 800 x 600 1024 x 768 1280 x 1024 1600 x 1200
Dot Clock (MHz) 25.175 28.322 56.250 94.500 135.000 202.500
HORIZONTAL
Hor. Freq. (kHz) 31.469 31.469 53.674 68.677 79.976 93.750
H-Total 31.778 31.777 18.631 14.561 12.504 10.667
H-Blanking 6.356 6.355 4.409 3.725 3.022 2.765
H-Front Porch 0.636 0.636 0.569 0.508 0.119 0.316
H-Sync. 3.813 3.813 1.138 1.016 1.067 0.948
H-Back Porch 1.907 1.907 2.702 2.201 1.837 1.501
H-Active 25.422 25.422 14.222 10.836 9.481 7.901
(µsec.)
VERTICAL
Ver. Freq. (Hz) 59.940 70.087 85.061 84.997 75.025 75.000
V-Total 525 449 631 808 1066 1250
V-Blanking454931 40 42 50
V-FrontPorch1012 1 1 1 1
V-Sync. 2 2 3 3 3 3
V-Back Porch 33 35 27 36 38 46
V-Active 480 400 600 768 1024 1200
(lines)
SYNC.
Int(G)NoNoNo No No No
Ext (H/V)/Polarity Yes -/- Yes -/+ Yes +/+ Yes +/+ Yes +/+ Yes +/+
Ext (CS)/Polarity No No No No No No
Int/NonInt Non Int Non Int Non Int Non Int Non Int Non Int

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CPD-2403
TABLE OF CONTENTS
Section Title Page
Safety Check Out Instructions .............................................................. 4
1. GENERAL.................................................................................. 5
2. DISASSEMBLY
2-1. Cabinet Removal........................................................... 9
2-2. Service Position ............................................................. 9
2-3. A and D Board Removal ............................................... 9
2-4. Picture Tube Removal ................................................. 10
3. SAFETY RELATED ADJUSTMENTS........................... 11
4. ADJUSTMENTS .................................................................... 12
5. DIAGRAMS
5-1. Block Diagram .............................................................. 15
5-2. Circuit Boards Location ................................................ 18
5-3. Schematic Diagrams and Printed Wiring Boards......... 18
1. D Board - Schematic Diagram ............................... 19
2. A Board - Schematic Diagram ............................... 26
5-4. Semiconductors ........................................................... 29
6. EXPLODED VIEWS
6-1. Chassis ........................................................................ 31
6-2. Packing Materials ........................................................ 32
7. ELECTRICAL PARTS LIST .............................................. 33

— 4 —
CPD-2403
1.5 k Ω 0.15 µF AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety checks before releasing the set to the
customer:
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).Leakagecurrentcanbe measured byany one of
three methods.
WARNING!!
NEVER TURN ON THE POWER IN A CONDITION IN WHICHTHE
DEGAUSS COIL HAS BEEN REMOVED.
SAFETY-RELATED COMPONENTWARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK ONTHE
SCHEMATIC DIAGRAMS, EXPLODEDVIEWS AND INTHE 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. FOLLOWTHESE PROCEDURESWHENEVER CRITICAL
COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS
SUSPECTED.
AVERTISSEMENT!!
NE JAMAIS METTRE SOUS TENSION QUAND LA BOBINE DE
DEMAGNETISATION EST ENLEVEE.
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
LES COMPOSANTS IDENTIFIES PAR UNETRAME ET PAR UNE
MARQUE SUR LES SCHEMAS DE PRINCIPE, LES VUES
EXPLOSEES ET LES LISTES DE PIECES SONT D'UNE
IMPORTANCE 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.
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 hardwarehave been replaced.Be
absolutely certain that you have replaced all the
insulators.
4. Look for unauthorized replacement parts, particularly
transistors,thatwereinstalledduring a previous repair.
Point them out to the customer and recommend their
replacement.
5. Lookforparts which, though functioning, showobvious
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. Checkthe B+ and HV to see if theyare specified values.
Makesureyourinstrumentsare 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.
1. A commercial leakage tester, such as the Simpson 229 or
RCAWT-540A.Follow the manufacturers'instructions to use
these instructions.
2. Abattery-operatedACmilliammeter.TheDataPrecision245
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"
indicationis0.75V, so analog meters musthavean accurate
lowvoltagescale.The Simpson's 250 andSanwaSH-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

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CPD-2403
SECTION 1
GENERAL The following are partial abstracts from the Operating Instruction
Manual. The page numbers shown reflect those of the Operating
Instruction Manual.
4
Getting Started
Setup
Connect the monitor to your computer system.
This monitor will sync to platforms running at horizontal frequencies between 30 and 85 kHz.
Step 1 Make sure the computer system is switched off and attach
the video signal cable to the video output of the computer. Step 2 Make sure the computer is switched off and attach the
power cord to the monitor. Then, attach the other end of
the power cord to a power outlet.
Step 3 Switch on the monitor and computer.
Step 4 Adjust the user controls according to your personal
preference.
Installation is complete.
Parts and Controls
1(RESET) button (pages 6, 9)
This button resets the adjustments to the factory settings.
2(BRIGHTNESS) (v/V) buttons (page 5)
These buttons adjust the picture brightness and function as the
(v/V) buttons when adjusting other items.
3(MENU) button (page 6)
This button displays the MENU OSD.
46(CONTRAST) (B/b) buttons (page 5)
These buttons adjust the contrast and function as the (B/b)
buttons when adjusting other items.
51(POWER) switch and indicator
This button turns the monitor on and off.
The indicator lights upgreen when the monitor is on, and lights
up green and orange when the monitor is in Power Saving
mode.
6AC IN connector
This connector provides AC power to the monitor.
7Video input connector (HD15) (page 5)
This connector inputs RGB video signals and SYNC signals.
Computer
to the video output
to a power outlet
Power cord
Front Rear
5
Getting Started Customizing Your Monitor
US
This monitor can be adjusted within the angles shown below. To
turn the monitor vertically or horizontally, holdit at the bottom with
both hands.
1
Press the (BRIGHTNESS) v/V or 6(CONTRAST)
B/b buttons.
The BRIGHTNESS/CONTRAST OSD appears.
2
To adjust the brightness.
Press the (BRIGHTNESS) v/V buttons.
To adjust the contrast.
Press the 6(CONTRAST) B/b buttons.
Use of the Tilt/Swivel
Video Connector
Pin No. Signal Pin No. Signal
1 Red video 8 Blue return
2 Green video 9 Not used (no pin)
3 Blue video 10 Ground
4 Ground 11 Ground
5 CPU host ground 12 SDA (serial data)
6 Red ground 13 Horizontal Sync
7 Green return 14 Vertical Sync
15 SCL (serial clock)
90°
5°
90°
15°
12345
987 10
11 12 13 14 15
6
Adjusting the Picture Brightness
and Contrast
BRIGHTNESS/CONTRAST
26 26

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CPD-2403
6
Customizing Your Monitor
The OSD (On-screen Display) System
You can adjust most of the monitor’s settings using the OSDs (On-
screen Display). All of the OSDs inthis illustration are described on
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:
Basic controls:
• Use the (MENU) button to display the MENU OSD and to
select menu items.
• Use the (BRIGHTNESS) v/V buttons to highlight menu
items and to adjust settings.
To adjust the monitor settings:
1Press the MENU button to display the MENU OSD.
2Highlight the desired OSD using the BRIGHTNESS buttons and
press the MENU button again.
3If necessary, use the BRIGHTNESS buttons to select a specific
item.
4Adjust the monitor setting using the BRIGHTNESS and
CONTRAST buttons.
• To reset the current item to its original setting, press the
(RESET) button while the item’s adjustment OSD is displayed.
5When 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
displayed, only the current adjustment item is reset. For
additional information on using the reset function, see the
“Resetting the Adjustments” section on page 9.
• Each of the adjustment’s OSD automatically disappears after
30 seconds.
Introducing the OSD System
OK
MENU
MENU
EXIT
SIZE/CENTER
GEOMETRY
COLOR
CONVERGENCE
LANGUAGE
OPTION
HELP
80.0kHz/ 75Hz
1280 X 1024
1
2
3
4
5
6
7
Horizontal/Vertical
frequencies for
current input signal
Resolution for current
input signal
1SIZE/CENTER 2GEOMETRY 3COLOR
4CONVERGENCE 5LANGUAGE 6OPTION
7HELP
SIZE/CENTER
26 26
GEOMETRY COLOR
9300K
5000K
26
CONVERGENCE
LANGUAGE
ENGLISH
FRANÇAIS
DEUTSCH
ESPAÑOL
ITALIANO
NEDERLANDS
SVENSKA
ON
DEGAUSS
OPTION
HELP
RETURN TO MAIN MENU
RECOMMENDED RESOLUTION
FLICKER
THIN HORIZONTAL LINE
DISTORTED SHAPE
OUT OF FOCUS
DISCOLORATION
7
Customizing Your Monitor
US
1Adjusting the size and centering
of the picture (SIZE/CENTER)
This setting is stored in memory for the current input signal.
1Press the MENU button.
The main MENU appears on the screen.
2Press the v/V buttons to highlight SIZE/
CENTER and press the MENU button again.
The SIZE/CENTER menu appears on the screen.
3Press the v/V buttons to select the desired
adjustment item. Then press the 6B/b buttons to
adjust the setting.
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.
2Adjusting 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.
1Press the MENU button.
The main MENU appears on the screen.
2Press the v/V buttonsto highlight GEOMETRY
and 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.
3Adjusting 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 colors to a printed picture’s colors.
This setting is stored in memory for all input signals.
1Press the MENU button.
The main MENU appears on the screen.
2Press the v/V buttons to highlight COLOR and
press the MENU button again.
The COLOR menu appears on the screen.
3Press the v/V buttons to select a color
temperature.
The preset color temperatures are 9300K and 5000K. Since the
default setting is 9300K, the whites change 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 6B/b buttons to adjust the color
temperature manually.
This OSD allows you to adjust the color temperature between
9300K and 5000K.
Press the 6B/b buttons to adjust the color temperature.
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
Adjusting the Settings
Select To
HORIZONTAL CENTERING shift the picture to the left or
right
VERTICAL CENTERING shift the picture up or down
HORIZONTAL SIZING enlarge or reduce the picture
width
VERTICAL SIZING enlarge or reduce the picture
height
ZOOM enlarge or reduce the picture
width and height
proportionally
Select To
ROTATION rotate the picture
PINCUSHION expand or contract the picture sides
PIN BALANCE shift the picture sides to the left or right
KEYSTONE adjust the picture width at the top of the
screen
KEY BALANCE shift the picture to the left or right at the
top of the screen
COLOR
9300K
5000K
26

— 7 —
CPD-2403
8
Customizing Your Monitor
4Adjusting the quality of the
picture (CONVERGENCE)
The CONVERGENCE 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.
1Press the MENU button.
The main MENU appears on the screen.
2Press the v/V buttons to highlight
CONVERGENCE and press the MENU button again.
The CONVERGENCE menu appears on the screen.
3Press the 6B/b buttons to adjust the horizontal
convergence, or the v/V buttons to adjust the
vertical convergence.
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
5Changing the OSD language
(LANGUAGE)
This setting is stored in memory for the current input signal.
1Press the MENU button.
The main MENU appears on the screen.
2Press the v/V buttons to highlight LANGUAGE
and press the MENU button again.
The LANGUAGE menu appears on the screen.
3Press the v/V buttons to select the language you
prefer.
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
6Additional settings (OPTION)
You can manually degauss (demagnetize) the screen, cancel the
moire, adjust the OSD horizontal position, adjust the OSD vertical
position and lock the controls using the OPTION OSD.
1Press the MENU button.
The main MENU appears on the screen.
2Pressthe v/V buttons to highlight OPTION and
press the MENU button again.
The OPTION menu appears on the screen.
3Press the v/V buttons to highlight the desired
adjustment item.
Adjust the selected item according to the following instructions.
The OSD automatically disappears after about 30 seconds. To
close the OSD, press the MENU button again.
Degaussing the monitor
The monitor is automatically degaussed (demagnetized) when the
power is turned on.
To manually degauss the monitor, first press the
v/V buttons to highlight (MANUAL DEGAUSS).
Then press only the right 6bbutton.
The monitor is degaussed for about three seconds. If a second
degauss cycle is needed, allow a minimum interval of 20
minutes for the best result.
Adjusting the amount of the moire cancellation
Toadjust the amountof moire cancellation,first press
the
v/V buttons to highlight ( MOIRE
CANCEL). Then press the 6B/b buttons to adjust the
amount of moire cancellation until the moire effect is
at a minimum.
* 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.
Adjusting the OSD Horizontal Position
To change the horizontal position of the OSD, first
press the v/V buttons to highlight (OSD H
POSITION). Then press the 6B/b buttons to adjust
the horizontal position of the OSD.
Adjusting the OSD Vertical Position
To change the vertical position of the OSD, first press
the
v/V buttons to highlight (OSD V
POSITION). Then press the 6B/b buttons to adjust
the vertical position of the OSD.
Locking the controls
To protect adjustment data by locking the controls,
first press v/V buttons to highlight
(CONTROL LOCK). Then press the 6B/b buttons to
toggle the Control Lock on or off.
Only the 1(power) switch and MENU button will operate.
Example of moire
OSD H
POSITION
OPTION
26
OSD V
POSITION
OPTION
26
9
Customizing Your Monitor
US
7Using the HELP OSD
1
Press the MENU button.
The main MENU appears on the screen.
2
Press the v/V buttons to highlight HELP and
press the MENU button again.
The HELP OSD appears on the screen.
3
Press the v/V to select an option from the HELP
menu, then press the MENU button toview the HELP
information.
Resetting the adjustments
Navigate through the on-screen menus to select the adjustment item
you want to reset, and press the RESET button before the OSD
disappears.
Press the RESET button when no OSD is displayed on the screen.
Note that the following items are not reset by this method:
• on-screen menu language (page 8)
• on-screen menu position (page 8)
Press and hold the reset button for more than two seconds. This
resets everything to the factory presets including the input selection.
Note
The RESET button does not function when (CONTROL LOCK) is
set to ON.
HELP
RETURN TO MAIN MENU
RECOMMENDED RESOLUTION
FLICKER
THIN HORIZONTAL LINE
DISTORTED SHAPE
OUT OF FOCUS
DISCOLORATION
Resetting a specific adjustment
Resetting all of the adjustments
for the current input signal
Resetting all of the adjustment
data to the factory presets
Design and specifications are subject to change without notice.
Monitor Information
You can display the model name, serial number and year of
manufacture using the INFORMATION OSD.
Press and hold the MENU button for 5 seconds.
The INFORMATION OSD appears.
The INFORMATION OSD includes the model name, serial number
and year of manufacture.
The OSD automatically disappears after about 30 seconds.
IfThinLinesAppearonYour
Screen (damper wires)
The lines you may be seeing on your screen are normal for the
Trinitron monitor and are not a malfunction. These are shadows
from the damper wires that 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.
INFORMATION
MODEL : CPD–24****
MANUFACTURED : 1999–53
SER NO : 1234567
Damper wires
Approx. 6 cm
Approx. 6 cm

— 8 —
CPD-2403
11
Additional Information
US
Warning Messages
If there is something wrong with the input signal, one of the following messages appears.
To solve these problems, see the “Troubleshooting” section below.
Troubleshooting
If the problem is caused by the connected computer or other equipment, please refer to the connected equipment’s instruction manual.
1Out of Scan Range
This message indicates that the current input signal is not appropriate for the monitor’s specificatons.
2Power Save Mode
This message indicates that the monitor has reduced power consumption.
3Check Signal Cable (self test pattern)
This message indicates that either no input signal is received, or the video cable is not connected.
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 CHECK SIGNAL CABLE
message appears 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.
• 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 key on the computer keyboard.
• Check that the computer’s power is “on.”
• Check that the graphic video 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 specified 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 – 85 kHz
Vertical: 48 – 120 Hz
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 and televisions.
• Move the monitor away from power lines or place a magnetic shield near the monitor.
• Try plugging the monitorinto 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 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
supported by this monitor (Appendix). Even if the frequency is within the proper range,
some graphic 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.
INFORMATION
MONITOR IS WORKING
OUT OF SCAN RANGE
CHANGE PC SETTING
INFORMATION
MONITOR IS IN
POWER SAVE MODE
ACTIVATE USING PC
INFORMATION
MONITOR IS WORKING
CHECK SIGNAL CABLE
RED
GREEN
BLUE
WHITE
12
Additional Information
* 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.
Picture is fuzzy • Adjust the brightness and contrast (page 5).
• Degauss the monitor* (page 8).
• If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire cancellation
effect (page 8) or set CANCEL MOIRE to OFF.
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 • Adjust the size (page 7) or centering (page 7). Note that some video modes do not fill the
screen to the edges.
Edges of the image are curved • Adjust the geometry (page 7).
Wavy or elliptical pattern (moire) is
visible • Cancel the moire (page 8).
xProblems caused by the connected computer or other equipment
• Change your desktop pattern.
Color is not uniform • Degauss the monitor* (page 8). 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.
White does not look white • Adjust the color temperature (page 7).
Letters and lines show red or blue
shadows at the edges • Adjust the convergence (page 8).
Monitor buttons do not operate • If the control lock is set to ON, set it to OFF (page 8).
A hum is heard right after the
power is turned on • This is the normal sound of the auto-degauss cycle. When the power is turned on, the monitor
is automatically degaussed for 3 seconds.
Symptom Check these items

— 9 —
CPD-2403
2-3. A and D BOARD REMOVAL
2-1. CABINET REMOVAL 2-2. SERVICE POSITION
SECTION 2
DISASSEMBLY
EMI Shield
Cable stopper
Five screws
(BVTP 3 x 8)
D board
One screw
(BVTT 4 x 8)
1
4
5
7
3
8
Holder
10
Aboard
Chassis base
7
Two screws
(BVTP 3 x 12)
2
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.
Cabinet
Two screws
(BVTP 4 x 16)
Two claws
PUSH
PUSH
A board
D board

— 10 —
CPD-2403
2-4. PICTURE TUBE REMOVAL
1 Turn up one side of the rubber cap in
the direction indicated by arrow a . 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 .
2 Use your thumb to pull the rubber
capfirmly inthe direction indicated
by arrow b .
HOWTO HANDLE AN ANODE-CAP
WARNING: High voltage remains in the CRT even after the power is disconnected. To avoid electric shock, discharge CRT
before attempting to remove the anode cap. Short between anode and CRT coated earth ground strap.
NOTE: After removing the anode, short circuit the anode of the picture tube and the anode cap to either the metal
chassis, CRT shield, or carbon painted on the CRT.
REMOVAL PROCEDURES
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 damag-
ing the anode cap.A material fitting called a shatter-hook ter-
minal 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.
WARNING:
BEFORE REMOVING
THE ANODE CAP
High voltage remains in the CRT even
after the power is disconnected. To
avoidelectricshock, dischargeCRT
beforeattempting to remove the anode
cap. Short between anode and CRT
coatedearth ground strap.
ANODE CAP REMOVAL
CoatedEarth
GroundStrap
a
b
Anode Button
c
Demagnetization coil
Tension spring
Stand
ass'y
(D board)
Aboard
Neck assy
Deflection yoke
Four screws
(Tapping screw 5)
Anode cap
Cushion
Picture tube shield
Two screws
(BVTP 4 x 16)
1
6
9
10
5
4
3
2
7
8

— 11 —
CPD-2403
8) After adjusting the High Voltagewithin specification,
put the RV cover on RV501 as shownbelow and apply
sufficient amount of RTV around RV501.
b) HV Protector Circuit Check
1) Confirm that the voltage between cathode of D517 an
GND is more than 27.5 VDC.
2) Using an external DC Power supply, apply the voltage
shown below between cathode of D517 on "D" and GND,
and confirm that the HV Hold-Downcircuit works. (Raster
disappears) Apply DC Voltage: Less than 35.5 VDC
CheckCondition
• Input voltage : 120 ± 2 VAC
• Input signal : (fH = 69 kHz), White Cross Hatch
• Controls : CONT (max) & BRT (center)
• B+ Voltage : 179 ± 3.0 VDC
c) Beam Protector Check (Software logic)
1) Using an external current source, apply < 1.55mA between
pin of FBT (T501) and GND, and confirm that the
rasterfades out.
CheckCondition
• Input voltage : 120 ± 2 VAC
• Input signal : (fH = 80 kHz), White Cross Hatch
• Controls : CONT (max) & BRT (min)
d) B+Voltage Check
1) Input white cross hatch (fH = 80 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
rangeshown below.
Standard voltage: 179 ± 3.0 VDC
SECTION 3
SAFETY RELATED ADJUSTMENTS
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
thefollowingconditions:
a) HV Regulator Check
1) Input white cross hatch signal. (fH = 80 kHz)
2) CONT maximum and BRT center
3) Cut off Screen VR (G2).
4) Input voltage: 120 ± 2 VAC
5) Confirm that the voltage is within the voltagerange
shownbelow.
Standard voltage: 26.9 KV ± 0.4 KV
6) When replacing components identified by , make
sure to recheck the High Voltage.
7) VerifytheHighVoltageas shownabove(26.9KV±0.4KV)
is within specification. If not, set H. SIZE data at
minimum (-127) and then adjust RV501 on "D" Board.
Part Replaced ( )
RV501
HV ADJ
Part Replaced ( )
D board T501, IC501, RV501, R540,
R541, R542, R544, R564, R567,
R568, C532, C534, C539, C553,
C554, C555, C556, C558, C561
HVRegulator
Circuit
D board T501, R510, R543, R547,
R549, R552, R595, D515,
D517, C540, C542, C544,
IC607, IC901
HV HOLD
DOWNCircuit
D board T501, R545, R546, R548,
R550, R596, R934, C535,
C541, IC605, IC607, IC901
Beam Current
ProtectorCircuit
RV501

— 12 —
CPD-2403
SECTION 4
ADJUSTMENTS
4-1. Landing Rough Adjustment
1. Display the all white pattern.
2. Adjust the contrast to maximum value.
3. Display the plain green pattern.
4. Slide the DY back and roughly adjust the plain green
pattern with the purity magnet so that it is centered on
the 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.
4-2. Landing Fine Adjustment
1. Place the monitor in the Helmholtz coil.
2. Set TLH plate to zero position.
3. Displayplain greenpattern.
4. Degauss CRT face and iron parts with degauss equipment or
hand-degausser.
5. Performauto degauss.
6. Attach a wobbling coil to the specified position of CRT neck.
7. Put the sensor of landing checker to CRT face.
8. Adjust purity, DY position and DY tilt.
9. Tighten DY screw.
10. Performauto degauss.
11. Adjust top and bottom pin by pitching DY up and down with
two wedges so that [a] is equal to [b].
*The parts above ( ~ ) are necessary for DAS adjustment.
IBM AT Computer
as a Jig
1-690-391-21
1A-1500-819-A
Interface Unit
2
3
D-sub
(9 Pin [female]) mini Din (8Pin) 4 Pin
3-702-691-01
Connector Attachment
3
To BUS CONNECTOR
4 Pin 4 Pin
1
Connect the communication cable of the connector located on the D board on the monitor. Run the service software and then follow the
instructions.
Allowa 30 minute warm-up period prior to making thefollowing adjustments:
12. If the corner landing is out of specification, use a disk
magnet for the landing correction.
13. If disk magnets were used, perform an auto degauss.
14. Remove the wobbling coil and sensor.
15. Fix the purity magnet on DY with white paint.
4-3. Convergence Rough Adjustment
1. Enter the white crosshatch signal.
2. Roughly adjust the horizontal (H.STAT) and vertical
(V.STAT) convergence at four-pole magnet.
3. Roughly adjust HMC and VMC at six-pole magnet.
4-4.
Convergence and V. Key (H.Trp) Fine Adjustment
1. Display crosshatch pattern with green lines and black
field.
2. Adjust V. Key (=H. Trapezoid) with H-Trp VR so that [a]
is equal to [b].
3. Change "CONV_OFF_NDX" to "7".
CRT
Neck Ass'y
A Board
Purity
Magnet XCV VR
6-pole
Mg TLH Plate
DY
4-pole
Mg
H-Trp VR TLV VR
YCV VR

— 13 —
CPD-2403
4-5. Vertical and Horizontal Position and
Size Specification
4-6. Focus adjustment
Adjust focus (V) and focus (H) for optimum focus.
4. Display crosshatch pattern with red and blue lines and
blackfield.
5. Adjust H.STAT and V.STAT with 4 pole magnet. Use 4
pole magnet, not "HSTAT" and "VSTAT".
4 Pole Magnet
6. Displaycrosshatch pattern with white lines and black field.
7. Adjust HMC and VMC with 6 pole magnet.
6 Pole Magnet
8. Display crosshatch pattern with red and blue lines and
blackfield.
9. Ifnecessary, repeat steps 5-8.
10. Change "CONV_OFF_NDX" to "3".
11. AdjustH.TILTwithTLH plate.
TLHmovement
12. Adjust XCV with XCV VR.
XCV movement
13. Adjust YCH with YCH VR.
YCH movement
14. Adjust V.TILT with TLV VR.
TLV movement
15. If necessary, repeat steps 3-14 to make the
optimum condition for the entire screen.
16. Fix 4-pole magnet, 6-pole magnet and XCV
VR with white paint
Zero Position NECK Ass'y
R B B R
A B
234 312
fH> 60kHz fH< 60kHz
a = 2.0 mm 2.4 mm
b = 2.0 mm 2.4 mm
a
A
b
B
RB
Focus (V)
Focus (H)
FBT

— 14 —
CPD-2403
4-7. Digital Convergence Adjustment
Convergence (Low) Mode
1. Adjustthe H.STATand V.STAT with"HSTAT" and
"VSTAT".
A. Horizontal Convergence
Adjusteach misconvergencepoint in sequence.
B. Vertical Convergence
Adjust each misconvergence point in sequence.
2. Repeat the procedure of A and B so that the conver-
gence of the entire screen is within the specification.
Convergence (High) Mode
1. Adjustthe H.STATandV.STATwith"HSTAT-HI" and
"VSTAT-HI".
Horizontal Convergence
Vertical Convergence
Adjust each misconvergence point in sequence.
2. Repeat the procedure of A and B so that the conver-
gence of the entire screen is within the specification.
4-8.Convergence Specification
A Zone:
Primary Mode Others
H: <0.25mm H: <0.3mm
V: <0.2mm V: <0.3mm
B Zone:
Primary Mode Others
H: <0.3mm H: <0.4mm
V: <0.3mm V: <0.4mm
C Zone:
Primary Mode Others
H: <0.35mm H: <0.4mm
V: <0.35mm V: <0.4mm
Adjust each misconvergence point in sequence.
9
11
19
17
1
10
12
20
18
2
5
6
CBH-T-L-LO
MBH-T-L-LO
APH-L-LO
MBH-B-L-LO
CBH-B-L-LO
CBH-T-R-LO
MBH-T-R-LO
APH-R-LO
MBH-B-R-LO
CBH-B-R-LO
YBH-T-LO
YBH-B-LO
HSTAT
13
15
23
21
3
14
16
24
22
4
7
8
CCV-T-L-LO
MCV-T-L-LO
XBV-L-LO
MCV-B-L-LO
CCV-B-L-LO
CCV-T-R-LO
MCV-T-R-LO
XBV-R-LO
MCV-B-R-LO
CCV-B-R-LO
V STAT-T-LO
V STAT-B-LO
VSTAT
9
11
19
17
1
10
12
20
18
2
5
6
CBH-T-L-HI
MBH-T-L-HI
APH-L-HI
MBH-B-L-HI
CBH-B-L-HI
CBH-T-R-HI
MBH-T-R-HI
APH-R-HI
MBH-B-R-HI
CBH-B-R-HI
YBH-T-HI
YBH-B-HI
HSTAT-HI
13
15
23
21
3
14
16
24
22
4
7
8
CCV-T-L-HI
MCV-T-L-HI
XBV-L-HI
MCV-B-L-HI
CCV-B-L-HI
CCV-T-R-HI
MCV-T-R-HI
XBV-R-HI
MCV-B-R-HI
CCV-B-R-HI
V STAT-T-HI
V STAT-B-HI
VSTAT-HI
B
A
312 mm
234 mm
C

— 15 — — 16 — — 17 — — 18 —
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM
CPD-2403
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
• All resistors are in ohms.
•: nonflammable resistor.
•: fusible resistor.
•: internal component.
•: panel designation and adjustment for repair.
• All variable and adjustable resistors have characteristic curve
B, unless otherwise noted.
•: earth-ground
•: earth-chassis.
• The components identified by 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.
• When replacing components identified by , make the
necessary adjustments by using RV501 ( ) as indicated.
(See page 11)
• When replacing parts shown in the table below, be sure to
perform the safety related adjustment.
• All voltages are in volts.
• Readings are taken with a 10 ΜΩ digital multimeter
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production
tolerances.
• * : Cannot be measured.
• Circled numbers are waveform references.
•: B +bus.
•: B - bus.
Pitch: 5 mm
Rating electrical power 1/4 W (CHIP: 1/10 W)
Note: The components identified by shading and
mark are critical for safety.Replace only with
part number specified.
Note: Les composants identifies per un trame et une
marque sont critiques pour la securite. Ne les
remplacer que par une piece portant le numero specifie.
5-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
5-2. CIRCUIT BOARDS LOCATION
Part Replaced ( )
RV501
HVADJ
Part Replaced ( )
Dboard T501, IC501, RV501, R540,
R541, R542, R544, R564, R567,
R568, C532, C534, C539, C553,
C554, C555, C556, C558, C561
HVRegulator
Circuit
D board T501, R510, R543, R547, R549,
R552, R595, D515, D517, C540,
C542, C544, IC607, IC901
HV HOLD
DOWNCircuit
D board T501, R545, R546, R548, R550,
R596, R934, C535, C541,
IC605, IC607, IC901
Beam Current
ProtectorCircuit
852 Block Diagram.p65 8/17/99, 1:23 PM1

CPD-2403
— 20 — — 21 — — 22 —— 19 —
D BOARD SCHEMATIC DIAGRAM
12 3
5.1 Vp-p (H) 3.5 Vp-p (H) 5.5 Vp-p (H)
4 5 6
6.0 Vp-p (H) 1.175kVp-p (H) 47.5 Vp-p (H)
7 8 9
1.8 Vp-p (H) 55.3 Vp-p (H) 12.0Vp-p (H)
D BOARD WAVEFORMS
10 11 12
10.5 Vp-p (H) 9.3 Vp-p (H) 12.0 Vp-p (H)
13 14 15
1.5 Vp-p (H) 1.181 kVp-p (H) 1.7 Vp-p (H)
D BOARD IC VOLTAGE LIST
IC401 IC502 IC603 7 5.0 IC901 36 4.6 14 0.9
pin volt pin volt pin volt 8 5.0 pin volt 37 4.0 15 GND
1 1.6 1 1.4 1 9.2 9 4.9 1 NC 38 5.0 16 11.5
2 14.8 2 1.4 2 8.1 10 11.9 2 5.0 39 5.0 17 0.4
3 -14.6 3 -15.0 3 NC 11 4.5 3 2.5 40 NC 18 5.6
4 -15.1 4 0.1 4 3.5 12 4.9 4 2.2 41 NC 19 10.4
5 0.2 5 14.8 5 3.5 13 5.0 5 NC 42 NC 20 9.2
6 14.8 IC503 6 12.3 14 3.3 6 4.8 43 NC 21 2.4
7 1.6 pin volt IC604 15 1.1 7 0 44 2.3 22 9.7
IC501 1 89.5 pin volt 16 4.0 8 NC 45 2.3 23 5.0
pin volt 2 88.6 1 2.5 17 4.6 9 NC 46 1.2 24 4.9
1 11.9 3 79.3 2 GND 18 GND 10 GND 47 0.6 25 3.5
2 4.0 4 88.7 3 7.0 IC702 11 5.1 48 3.7 26 0.5
3 4.0 5 98.4 IC605 pin volt 12 NC 49 0.4 27 4.9
4 5.5 IC601 pin volt 1 -0.2 13 NC 50 0.4 28 0
5 8.9 pin volt IN 14.8 2 2.5 14 4.7 51 4.9 29 0.4
6 4.5 1 153.5 OUT 11.9 3 2.5 15 4.9 52 4.9 30 GND
7 GND 2 NC GND GND 4 2.5 16 3.9 53 5.0 IC904
8 0.2 3 GND 4 4.8 5 2.5 17 2.3 54 4.9 pin volt
9 GND 4 2.5 IC607 6 -0.1 18 3.7 55 NC 1 GND
10 8.2 5 0.0 pin volt 7 -15.0 19 0 56 GND 2 GND
11 4.4 6 12.5 IN 9.5 8 GND 20 0.1 IC902 3 GND
12 5.8 7 12.3 OUT 5.0 9 14.8 21 5.0 pin volt 4 4.9
13 5.8 8 2.5 GND GND 10 NC 22 0.2 1 2.2 5 5.0
14 5.8 9 2.8 IC608 11 3.2 23 4.7 2 4.7 IC905
15 5.2 10 N C pin volt 12 GND 24 5.0 3 4.0 pin volt
16 11.3 11 GND IN 11.9 IC703 25 0 4 4.6 1 GND
17 11.9 12 NC OUT 5.0 pin volt 26 0 5 GND 2 GND
18 6.8 13 0.9 GND GND 1 -0.2 27 0.5 6 4.0 3 GND
19 8.0 14 6.1 IC701 2 -0.2 28 2.8 7 5.6 4 GND
20 6.1 IC602 pin volt 3 3.8 29 GND 8 4.9 5 4.0
21 GND pin volt 1 4.9 4 3.8 30 0.5 9 4.0 6 4.6
22 4.3 1 3.1 2 5.0 5 -15.0 31 5.0 10 5.0 7 5.0
23 4.0 2 9.1 3 4.9 6 3.8 32 0.9 11 6.2 8 5.0
24 4.0 3 GND 4 4.9 7 3.8 33 0.4 12 4.7 All voltages are in V
4 6.3 5 5.0 8 -0.2 34 4.7 13 NC
5 1.2 6 5.0 9 -0.2 35 4.7
10 14.8
D BOARD TRANSISTOR
VOLTAGE LIST
BCE
Q501 5.5 11.5 5.5
Q502 5.5 GND 5.5
Q504 1.1 135.0 0.6
Q505 0.6 -15.1 1.1
Q506 2.2 GND 2.8
Q507 -0.6 49.1 GND
Q508 0.5 11.9 0.9
Q518 2.3 88.5 2.8
Q519 0.4 11.8 GND
Q521 4.8 GND 5.4
Q522 4.7 GND 5.0
Q524 5.0 GND 5.5
Q525 0.5 11.9 0.9
Q601 0 11.9 G ND
Q603 5.0 0 GND
Q604 0 8.1 GND
Q605 4.8 0 GND
Q903 0.4 5.5 GND
All voltages are in V
D BOARD TRANSISTOR
VOLTAGE LIST
DGS
Q503 93.0 176.0 179.0
Q510 84.5 7.9 GND
Q511 -11.1 -1.8 -14.8
Q512 0 4.9 G ND
Q513 33.2 0.4 GND
Q514 33.8 0.4 GND
Q515 0 4.9 G ND
Q516 0 5.0 GND
Q520 88.9 176.0 179.0
Q602 131.8 2.4 0.1
All voltages are in V
Schematic diagrams
Block diagram
Dboard
FOLDOUTD.p65 8/17/99, 10:38 AM2

CPD-2403
1
A
B
C
D
E
F
G
H
I
2345678910111213
D[ POWER DEFLECTION ]
NOTE:
Portions of this circuit marked as shown are high
voltage areas. Use care to prevent electric shocks
during inspection or repair.
D BOARD LOCATOR LIST
DIODE D517 J-12 D610 A-7 D906 G-1 D926 H-3 IC602 C-6 Q507 I-8
D401 F-9 D518 G-7 D611 E-10 D907 G-3 D927 H-3 IC603 A-7 Q508 G-10
D402 F-10 D519 G-7 D612 E-10 D908 H-3 D928 H-2 IC604 B-7 Q510 F-11
D403 F-10 D520 G-11 D613 E-9 D909 J-4 D929 H-2 IC605 E-5 Q511 I-6
D404 F-10 D521 G-11 D614 D-8 D910 J-4 D930 H-3 IC607 E-3 Q512 I-3
D501 I-5 D522 J-2 D615 D-7 D911 H-3 D931 I-2 IC608 E-5 Q513 I-3
D502 I-8 D523 J-2 D616 D-7 D913 F-4 D932 I-2 IC701 B-3 Q514 I-3
D504 F-11 D524 H-10 D617 D-9 D914 H-3 D933 I-2 IC702 C-5 Q515 I-3
D505 H-8 D525 H-10 D618 E-8 D915 J-4 D934 I-2 IC703 B-4 Q516 I-3
D506 I-9 D527 F-10 D619 D-7 D916 H-3 D935 E-2 IC901 H-3 Q518 G-5
D507 G-4 D601 D-11 D620 B-7 D917 H-5 D936 H-3 IC902 G-3 Q519 H-5
D509 F-13 D602 E-13 D621 E-10 D918 H-3 D937 F-3 IC904 I-1 Q520 G-8
D510 F-11 D603 D-6 D622 E-7 D919 H-3 D938 H-3 IC905 G-2 Q521 H-5
D511 F-5 D604 B-6 D704 C-3 D920 G-2 IC TRANSISTOR Q522 F-1
D512 H-5 D605 A-6 D901 I-3 D921 H-2 IC401 F-9 Q501 G-4 Q524 F-2
D513 G-12 D606 B-8 D902 H-3 D922 F-4 IC501 E-2 Q502 G-4 Q601 E-13
D514 H-13 D607 B-8 D903 F-4 D923 F-4 IC502 D-3 Q503 F-13 Q602 B-8
D515 H-13 D608 B-8 D904 I-2 D924 G-3 IC503 F-6 Q504 J-11 Q603 E-9
D516 G-7 D609 A-7 D905 G-1 D925 H-3 IC601 A-8 Q505 J-10 Q604 B-6
Q506 F-5 Q605 D-5
Q903 G-3
— 23— — 24— — 25—
FOLDOUTA.p65 8/17/99, 4:13 PM1

CPD-2403
A BOARD SCHEMATIC DIAGRAM
NOTE:
Portions of this circuit marked as shown are high
voltage areas. Use care to prevent electric shocks
during inspection or repair.
A BOARD IC VOLTAGE LIST
IC001 10 3.0 21 3.3 IC002 9 2.1 6 5.0 IC004 10 NC 7 10.4 6 4.6
pin volt 11 2.0 22 11.9 pin volt 10 11.8 7 4.1 pin volt 11 178.4 8 11.6 7 GND
1 4.0 12 0.2 23 GND 1 50.5 11 2.2 8 4.6 1 GND IC005 IC006 8 0.3
2 4.6 13 0 24 2.1 2 GND IC003 9 5.0 2 11.9 pin volt pin volt 9 0.3
3 3.0 14 0 25 3.3 3 49.8 pin volt 10 0 3 4.8 1 NC 1 NC 10 4.6
4 2.6 15 0 26 GND 4 GND 1 0.5 11 NC 4 4.8 2 NC 2 0 11 GND
5 2.6 16 11.9 27 2.3 5 49.7 2 1.1 12 0 5 4.8 3 NC 3 0 12 GND
6 3.2 17 0 28 3.3 6 78.7 3 1.1 13 0 6 NC 4 GND 4 0.5 13 NC
7 2.0 18 0.9 29 11.9 7 GND 4 5.0 14 0 7 93.7 5 3.2 5 4.6 14 4.9
8 4.8 19 GND 30 2.6 8 2.1 5 3.6 15 0 8 94.0 6 3.0 All voltages in V
9 2.0 20 2.2 16 GND 9 101.8
A BOARD TRANSISTOR
VOLTAGE LIST
BCE
Q001 11.4 505 10.9
Q006 0.3 3.6 GND
All voltages are in V
12 3
1.1 Vp-p (H) 1.1Vp-p (H) 1.2Vp-p (H)
4 5 6
4.1 Vp-p (H) 4.0 Vp-p (H) 4.6 Vp-p (H)
7 8 9
59.3 Vp-p (H) 56.5 Vp-p (H) 58.7 Vp-p (H)
A BOARD WAVEFORMS
12
11
10
54.0 Vp-p (H) 52.2Vp-p (H) 54.0 Vp-p (H)
KB
RCV
H
KG
KR
G1
G2
GM
G4
MV
HV A BOARD
CN303 D BOARD
CN512
TO TO
PICTURE TUBE
Schematicdiagrams
board
D
Aboard
1
A
B
C
D
E
23456
A[ VIDEO ]
A BOARD LOCATOR LIST
DIODE D105 A-4 IC
D001 D-6 D106 B-4 IC001 A-3
D002 D-2 D111 D-2 IC002 A-5
D003 D-1 D204 B-5 IC003 B-1
D004 D-2 D205 B-5 IC004 C-6
D005 E-5 D206 B-4 IC005 D-5
D007 E-4 D211 D-2 IC006 D-2
D008 E-3 D304 B-6 TRANSISTOR
D014 D-6 D305 B-6 Q001 D-5
D015 E-1 D306 B-5 Q006 C-1
D104 A-5 D311 D-3
— 27 —— 26 — — 28 —
FOLDOUTA.p65 8/18/99, 8:42 AM2

NOTES:
— 29 —
CPD-2403

2SC2610
2SK2605LBSONY
2SK3155-01
2SK2098-01MR-F119
2SK2843LBS2SONY
IRFU110A
2SC1623-L5L6
2SA1037AK-T146-R
2SC3941A-Q(TA)
DTA114EKA-T146
2SC4634LS-CB11DTC143ESA
1SS119-25
RD5.1ESB2
RD5.6ESB2
RD18ESB2
RD10ESB2
MTZJ-4.7C
MTZJ-T-77-18
RB441Q-40T-77
D4SB60L
MTZJ-T-77-12B
ERC81-004
EGP10D
RGP10JPKG23
RGP10DG23
RL3Z-LF014-302
HZU5.6B2TRF
D1NS6
D1NL40-TA2
UF4007G23
RGP02-20EL-6394
ERB91-02
HSS83TD
1SS355TE-17
HSS82
2SA1175-HFE
2SC2785-HFE
DTC114TSA
2SC3311A-QRSTA
CATHODE
ANODE
CATHODE
ANODE
CATHODE
ANODE
CATHODE
ANODE
S
D
G
E
LETTER SIDE
CB
E
B
C
BCE
B
EC
ECB
5-4. SEMICONDUCTORS
‘‘
{
|
‘‘
{|
~
+-
~
CPD-2403
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