Sony CPD-G200 / CPD-G200P Service Manual ▷ View online
CPD-G200/G200P
– 3 –
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground
and from all exposed metal parts to any exposed metal part hav-
ing a return to chassis, must not exceed 0.5 mA (500
microampers).
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” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are
examples of a passive VOMs that are suitable. Nearly all
battery operated digital multimeters that have a 2 V AC
range are suitable. (See Fig. A)
WARNING!!
NEVER TURN ON THE POWER IN A CONDITION IN
WHICH THE DEGAUSS COIL HAS BEEN REMOVED.
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 AP-
PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUST-
MENTS THAT ARE CRITICAL FOR SAFE OPERATION
ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE
PROCEDURES WHENEVER CRITICAL COMPONENTS
ARE REPLACED OR IMPROPER OPERATION IS SUS-
PECTED.
SAFE OPERATION. REPLACE THESE COMPONENTS
WITH SONY PARTS WHOSE PART NUMBERS AP-
PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUST-
MENTS THAT ARE CRITICAL FOR SAFE OPERATION
ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE
PROCEDURES WHENEVER CRITICAL COMPONENTS
ARE REPLACED OR IMPROPER OPERATION IS SUS-
PECTED.
AVERTISSEMENT!!
NE JAMAIS METTRE SOUS TENSION QUAND LA
BOBINE DE DEMAGNETISATION EST ENLEVÉE.
BOBINE DE DEMAGNETISATION EST ENLEVÉE.
ATTENTION AUX COMPOSANTS RELATIFS À LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET
UNE MARQUE
UNE MARQUE
¡
SONT CRITIQUES POUR LA SÉCURITÉ.
NE LES REMPLACER QUE PAR UNE PIÈCE PORTANT LE
NUMÉRO SPECIFIÉ. LES RÉGLAGES DE CIRCUIT DONT
L’IMPORTANCE EST CRITIQUE POUR LA SÉCURITÉ DU
FONCTIONNEMENT SONT IDENTIFIÉS DANS LE
PRÉSENT MANUEL. SUIVRE CES PROCÉDURES LORS
DE CHAQUE REMPLACEMENT DE COMPOSANTS CRI-
TIQUES, OU LORSQU’UN MAUVAIS FONCTIONNEMENT
EST SUSPECTÉ.
NUMÉRO SPECIFIÉ. LES RÉGLAGES DE CIRCUIT DONT
L’IMPORTANCE EST CRITIQUE POUR LA SÉCURITÉ DU
FONCTIONNEMENT SONT IDENTIFIÉS DANS LE
PRÉSENT MANUEL. SUIVRE CES PROCÉDURES LORS
DE CHAQUE REMPLACEMENT DE COMPOSANTS CRI-
TIQUES, OU LORSQU’UN MAUVAIS FONCTIONNEMENT
EST SUSPECTÉ.
After correcting the original service problem, perform the fol-
lowing safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly-sol-
dered 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 tran-
sistors, 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.
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY CHECK-OUT
1.5 k
Ω
0.15
µ
F
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
CPD-G200/G200P
– 4 –
TABLE OF CONTENTS
Section
Title
Page
1. GENERAL
.................................................................. 1-1
2. DISASSEMBLY
2-1.
Cabinet, EMI Shield Removal ............................ 2-1
2-2.
A, AA and D Boards Removal ........................... 2-2
2-3.
Service Position .................................................... 2-2
2-4.
Picture Tube Removal .......................................... 2-3
2-5.
H1 and H2 Boards Removal ................................ 2-4
3. SAFETY RELATED ADJUSTMENT
............. 3-1
4. ADJUSTMENTS
...................................................... 4-1
5. DIAGRAMS
5-1.
Block Diagrams
(with Frame Schematic Diagram) ....................... 5-1
5-2.
Circuit Boards Location ...................................... 5-5
5-3.
Schematic Diagrams and Printed Wiring Boards ...... 5-6
(1) Schematic Diagram of D Board ........................... 5-7
(2) Schematic Diagrams of H1 and H2 Boards ........ 5-17
(3) Schematic Diagram of A Board ........................... 5-19
(4) Schematic Diagram of AA Board ........................ 5-23
5-4. Semiconductors ................................................... 5-25
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
1-1
SECTION 1
GENERAL
The operating instructions mentioned here are partial abstracts
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remein as in the manual.
from the Operating Instruction Manual. The page numbers of
the Operating Instruction Manual remein as in the manual.
4
Precautions
Warning on power connections
• Use the supplied power cord. If you use a different power cord,
be sure that it is compatible with your local power supply.
For the customers in the UK
If you use the monitor in the UK, be sure to use the supplied UK
power cable.
For the customers in the UK
If you use the monitor in the UK, be sure to use the supplied UK
power cable.
• 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.
screen’s surface to discharge.
• After the power is turned on, the screen is demagnetized
(degaussed) for about 5 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.
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,
• 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
• 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.
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.
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.
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.
original carton and packing materials.
Use of the tilt-swivel
This monitor can be adjusted within the angles shown below. To
find the center of the monitor’s turning radius, align the center of
the monitor’s screen with the centering dots on the stand.
Hold the monitor at the bottom with both hands when you turn it
horizontally or vertically. Be careful not to pinch your fingers at
the back of the monitor when you tilt the monitor up vertically.
find the center of the monitor’s turning radius, align the center of
the monitor’s screen with the centering dots on the stand.
Hold the monitor at the bottom with both hands when you turn it
horizontally or vertically. Be careful not to pinch your fingers at
the back of the monitor when you tilt the monitor up vertically.
The equipment should be installed near an easily accessible
outlet.
outlet.
Example of plug types
for 100 to 120 V AC
for 200 to 240 V AC
for 240 V AC only
90˚
5˚
90˚
15˚
Centering dots
5
GB
Identifying parts and controls
See the pages in parentheses for further details.
1
RESET button (page 12)
This button resets the adjustments to the factory settings.
2
INPUT switch (page 11)
This switch selects the INPUT 1 (video input 1 connector:
y1) or INPUT 2 (video input 2 connector: y2) video input
signal.
y1) or INPUT 2 (video input 2 connector: y2) video input
signal.
3
Control button (page 9)
The control button is used to display the menu and make
adjustments to the monitor, including brightness and contrast
adjustments.
adjustments to the monitor, including brightness and contrast
adjustments.
4 1
(power) switch and indicator (pages 7, 13, 16)
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.
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.
5
AC IN connector (page 7)
This connector provides AC power to the monitor.
6
Video input connector (HD15) (page 6)
This connector inputs RGB video signals (0.700 Vp-p,
positive) and sync signals.
positive) and sync signals.
* DDC (Display Data Channel) is a standard of VESA.
7
Video input 2 connector (HD15) (
y
2) (page 6)
This connector inputs RGB video signals (0.700 Vp-p,
positive) and sync signals.
positive) and sync signals.
Pin assignment is the same as
6 described above.
AC IN
2
(HD15)
1
(HD15)
MENU
RESET
INPUT
1 2
MENU
RESET
INPUT
1 2
Rear
Front
Pin No.
Signal
1
Red
2
Green
(Sync on Green)
(Sync on Green)
3
Blue
4
ID (Ground)
5
DDC Ground*
6
Red Ground
7
Green Ground
8
Blue Ground
9
–
10
Ground
11
ID (Ground)
12
Bi-Directional Data (SDA)*
13
H. Sync
14
V. Sync
15
Data Clock (SCL)*
1 2
3 4 5
8
7
6
11 12 13 14 15
10
9
5 4
3 2 1
6
7
8
9
10
11
12
13
14
15
1-2
6
Setup
Before using your monitor, check that the following accessories
are included in your carton:
• Power cord (1)
• HD15 video signal cable (1)
• Power Mac G3 (sold after Jan., 1999) adapter (1)
• Windows Monitor Information Disk (1)
• Warranty card (1)
• Notes on cleaning the screen’s surface (1)
• This instruction manual (1)
are included in your carton:
• Power cord (1)
• HD15 video signal cable (1)
• Power Mac G3 (sold after Jan., 1999) adapter (1)
• Windows Monitor Information Disk (1)
• Warranty card (1)
• Notes on cleaning the screen’s surface (1)
• This instruction manual (1)
Step 1: Connect your monitor to
your computer
Turn off the monitor and computer before connecting.
Note
Do not touch the pins of the video cable connector as this might bend the
pins.
pins.
x
Connecting to an IBM PC/AT or compatible
computer
computer
x
Connecting to a Macintosh computer
* When connecting to a Power Mac G3 series computer (sold after
January, 1999), you must use the supplied adapter. The Power Mac G3
adapter can be used with either video input 1 or 2.
If your Macintosh video connector has two rows of pins, you will need
a different adapter. Contact your authorized Sony dealer for more
information.
adapter can be used with either video input 1 or 2.
If your Macintosh video connector has two rows of pins, you will need
a different adapter. Contact your authorized Sony dealer for more
information.
AC IN
2
(HD15)
1
(HD15)
IBM PC/AT or
compatible computer
compatible computer
to video output
AC IN
2
(HD15)
1
(HD15)
Use the supplied Power Mac G3 (sold after Jan., 1999) adapter.
Power Mac G3 (sold after Jan.,1999)
adapter (supplied)*
adapter (supplied)*
Power Mac G3
(sold after Jan., 1999)
(sold after Jan., 1999)
to video
output
output
AC IN
2
(HD15)
1
(HD15)
x
Connecting to a second computer
to HD15
HD15 video
signal cable
(supplied)
signal cable
(supplied)
Refer to the preceding examples
to connect to your computer.
to connect to your computer.
7
GB
Step 2: Connect the power cord
With the monitor and computer switched off, first connect the
power cord to the monitor, then connect it to a power outlet.
power cord 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 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, try changing the
• If NO INPUT SIGNAL appears on the screen, try changing the
input signal (page 7), and confirm that your computer’s graphic
board is completely seated in the correct bus slot.
board is completely seated in the correct bus slot.
• If MONITOR IS IN POWER SAVE MODE appeared on the
screen, try pressing any key on the computer keyboard.
• 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 – 96 kHz, and the vertical
frequency is between 48 – 120 Hz.
monitor. Then adjust the computer’s graphic board so that the
horizontal frequency is between 30 – 96 kHz, and the vertical
frequency is between 48 – 120 Hz.
For more information about the on-screen messages, see “Trouble
symptoms and remedies” on page 14.
symptoms and remedies” on page 14.
For customers using Windows 95/98
To maximize the potential of your monitor, install the new model
information file from the supplied Windows Monitor Information Disk
onto your PC.
This monitor complies with the “VESA DDC” Plug & Play standard. If
your PC/graphics board complies with DDC, select “Plug & Play Monitor
(VESA DDC)” or this monitor’s model name as the monitor type in the
“Control Panel” of Windows 95/98. If your PC/graphics board has
difficulty communicating with this monitor, load the Windows Monitor
Information Disk and select this monitor’s model name as the monitor
type.
information file from the supplied Windows Monitor Information Disk
onto your PC.
This monitor complies with the “VESA DDC” Plug & Play standard. If
your PC/graphics board complies with DDC, select “Plug & Play Monitor
(VESA DDC)” or this monitor’s model name as the monitor type in the
“Control Panel” of Windows 95/98. If your PC/graphics board has
difficulty communicating with this monitor, load the Windows Monitor
Information Disk and select this monitor’s model name as the monitor
type.
For customers using Windows NT4.0
Monitor setup in Windows NT4.0 is different from Windows 95/98 and
does not involve the selection of monitor type. Refer to the Windows
NT4.0 instruction manual for further details on adjusting the resolution,
refresh rate, and number of colors.
does not involve the selection of monitor type. Refer to the Windows
NT4.0 instruction manual for further details on adjusting the resolution,
refresh rate, and number of colors.
Adjusting the monitor’s resolution and color number
Adjust the monitor’s resolution and color number by referring to your
computer’s instruction manual. The color number may vary according to
your computer or video board. The color palette setting and the actual
number of colors are as follows:
• High Color (16 bit)
computer’s instruction manual. The color number may vary according to
your computer or video board. The color palette setting and the actual
number of colors are as follows:
• High Color (16 bit)
t 65,536 colors
• True Color (24 bit)
t about 16.77 million colors
In true color mode (24 bit), speed may be slower.
Selecting the input signal
You can connect two computers to this monitor using the video
input 1 (
input 1 (
y1) and video input 2 (y2) connectors. To select one
of the two computers, use the INPUT switch.
Move the INPUT switch.
The selected connector appears on the screen for 3 seconds.
“INPUT 1” (video input 1 connector:
y1) or “INPUT 2” (video
input 2 connector:
y2) appears on the screen.
Note
If no signal is input to the selected connector, NO INPUT SIGNAL
appears on the screen. After a few seconds, the monitor enters the power
saving mode. If this happens, switch to the other connector.
appears on the screen. After a few seconds, the monitor enters the power
saving mode. If this happens, switch to the other connector.
AC IN
2
(HD15)
1
(HD15)
to AC IN
to a power outlet
power cord (supplied)
INPUT
1 2