Sony GDM-200PS, GDM-200PST, GDM-200PST9 Service Manual

GDM-200PS/200PST/200PST9

GDM-200PS

SERVICE MANUAL

REVISED

SPECIFICATIONS

Picture tube 0.25 mm aperture grille pitch

17 inches measured diagonally 90-degree deflection

Viewable image size Approx. 327 × 243 mm (w/h)

(12 7/8 × 9 5/8 inches)

16.0” viewing image

Resolution Horizontal: Max. 1280 dots

Vertical: Max. 1024 lines

Standard image area Approx. 312 × 234 mm (w/h)

(12 3/8 × 9 1/4 inches) or Approx. 293 × 234 mm (w/h) (11 5/8 × 9 1/4 inches)

Deflection frequency Horizontal: 30 to 92 kHz

Vertical: 48 to 160 Hz

AC input voltage/current

100 to 240 V, 50 – 60 Hz, 1.7 – 1.0 A Power consumption Max. 120 W Dimensions 406 × 432 × 420 mm (w/h/d)

(16 × 17 1/8 × 16 5/8 inches) Mass Approx. 18.8 kg (41 lb 7 oz) Supplied accessories See page 6

US Model

Canadian Model

SH Model

Chassis No. SCC-L11B-A

GDM-200PST

AEP Model

UK Model

GDM-200PST9

AEP Model

Chassis No. SCC-L11C-A

CHASSIS

MICROFILM

Design and specifications are subject to change without notice.

TRINITRON

COLOR GRAPHIC DISPLAY

GDM-200PS/200PST/200PST9

SAFETY CHECK-OUT

After correcting the original service problem, perform the

following safety checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are “pinched” or contact high-wattage resistors.

3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.

4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.

5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.

7. Check the B+ and HV to see if they are specified values. Make sure your instruments are accurate; be suspicious of your HV meter if sets always have low HV.

8. Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC Leakage. Check leakage as described below.

To Exposed Metal Parts on Set

0.15 µF

1.5 k

Ω

Earth Ground

AC Voltmeter (0.75 V)

Fig. A. Using an AC voltmeter to check AC leakage.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOMs that are suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)

WARNING!! NEVER TURN ON THE POWER IN A CONDITION IN WHICH THE DEGAUSS COIL HAS BEEN REMOVED.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY SHADING AND MARK

ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS SUSPECTED.

AVERTISSEMENT!! NE JAMAIS METTRE SOUS TENSION QUAND LA BOBINE DE DEMAGNETISATION EST ENLEVÉE.

ATTENTION AUX COMPOSANTS RELATIFS À LA

SÉCURITÉ!! LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET UNE MARQUE

¡ SONT CRITIQUES POUR LA

SÉCURITÉ. NE LES REMPLACER QUE PAR UNE PIÈCE PORTANT LE NUMÉRO SPECIFIÉ. LES RÉGLAGES DE CIRCUIT DONT L’IMPORTANCE EST CRITIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT IDENTIFIÉS DANS LE PRÉSENT MANUEL. SUIVRE CES PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE COMPOSANTS CRITIQUES, OU LORSQU’UN MAUVAIS FONCTIONNEMENT EST SUSPECTÉ.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or

RCA WT-540A. Follow the manufacturers’ instructions to

use these instruments.

2. A battery-operated AC milliammeter. The Data Precision

245 digital multimeter is suitable for this job.

CAUTION ON DAS (ECS) CONNECTOR

• The connector for DAS (ECS) adjustment is provided inside

the cover shown below. Be careful with an electrical shock when connecting the connector with the power supplied. Also, return the removed cover to the home position.

Left side

– 2 –

GDM-200PS/200PST/200PST9

POWER SAVING FUNCTION

This monitor is capable of three states of reduced power consumption. By sensing the absence of video signals and one or both sync signals coming from the host computer, it will reduce power consumption as follows.

Power consumption state 1 Normal operation 2 Standby (1st state) 3 Suspend (2nd state) 4 Active-off (3rd state) 5 Power-off

Power consumption

≤120 W ≤85 W ≤15 W ≤5 W

0 W

Recovery time – Approx. 1 sec. Approx. 3 sec. Approx. 15 sec. –

u power indicator Green on Green and orange alternate Green and orange alternate Orange on Off

DIAGNOSIS

Failre

+B failure

Horizontal / Vertical Deflection failure, Thermal protector

ABL protector

HV failure

Aging / Self Test

Amber → Off

(0.5 sec) (0.5 sec)

Amber → Off

(1.5 sec) (0.5 sec)

Amber → Off

(0.5 sec) (1.5 sec)

Amber → Off → Amber → Off

(0.25 sec) (0.5 sec) (0.25 sec) (1.25 sec)

Amber → Off → Green → Off

(0.5 sec) (0.5 sec) (0.5 sec) (0.5 sec)

Aging Mode (Video Aging) : During Power Save, press “MENU” key for longer than 2 second. Self Test (OSD Color Bar) : During Power Save, press “CONTRAST” + (>) key for longer than 2 second. Reliability Check Mode : During Power Save, press “CONTRAST”– (.) key for longer than 2 second.

Power LED

TIMING SPECIFICATION

MODE AT PRODUCTION MODE 1 MODE 2 RESOLUTION 1280 X 960 1280 X 1024

CLOCK 148.500 MHz 135.000 MHz — HORIZONTAL — H-FREQ 85.938 kHz 79.976 kHz

usec usec H. TOTAL 11.636 12.504 H. BLK 3.017 3.022 H. FP 0.431 0.119 H. SYNC 1.077 1.067 H. BP 1.508 1.837 H. ACTIV 8.620 9.481 — VERTICAL — V. FREQ(Hz) 85.002 Hz 75.025 Hz

lines lines V. TOTAL 1011 1066 V. BLK 51 42 V. FP 1 1 V. SYNC 3 3 V. BP 47 38 V. ACTIV 960 1024 — SYNC — INT(G) NO NO EXT(H/V)/POLARITY YES P/P YES P/P EXT(CS)/POLARITY NO NO INT/NON INT NON INT NON INT

97.7.14 VER.

– 3 –

GDM-200PS/200PST/200PST9

Section Title Page

1. GENERAL................................................................... 1-1

2. DISASSEMBLY

2-1. Cabinet Removal .................................................. 2-1

2-2. A Board Removal................................................. 2-1

2-3. AC Inlet and I/O Terminal Board Removal ........ 2-2

2-4. D Board Removal................................................. 2-2

2-5. Service Position.................................................... 2-2

2-6. Picture Tube Removal.......................................... 2-3

3. SAFETY RELATED ADJUSTMENT............. 3-1

4. ADJUSTMENTS ...................................................... 4-1

TABLE OF CONTENTS

5. DIAGRAMS

5-1. Block Diagram

(with Frame Schematic Diagram) ........................ 5-1

5-2. Circuit Boards Location ....................................... 5-4

5-3. Schematic Diagrams and Printed Wiring Boards ... 5-4

(1) Schematic Diagram of D Board .......................... 5-5

(2) Schematic Diagram of A Board ........................ 5-13

5-4. Semiconductors ................................................. 5-16

6. EXPLODED VIEWS ............................................. 6-1

7. ELECTRICAL PARTS LIST ............................ 7-1

– 4 –

SECTION 1

Getting Started

Customizing Your Monitor

ES C

Horizontal Frequency*

Vertical Frequency*

Adjusting the Picture Contrast

Once the setting is adjusted, it will be stored in memory for all input signals received.

Press the > (contrast) ?// buttons.

The BRIGHTNESS/CONTRAST OSD appears.

Press the >?// buttons again to adjust the picture contrast.

/ . . . for more contrast ? . . . for less contrast

The OSD automatically disappears after about 3 seconds.

To reset, press the RESET button while the OSD is on. The brightness and contrast are both reset to the factory settings.

* The horizontal and vertical frequencies for the received input

signal appear in the BRIGHTNESS/CONTRAST OSD.

Horizontal Frequency*

Vertical Frequency*

Before adjusting

• Connect the monitor and the computer, and turn them on.

• Select “

LANG” in the MENU OSD, then select

“ENGLISH” (English) (see page 17).

Adjusting the Picture Brightness

Once the setting is adjusted, it will be stored in memory for all input signals received.

Press the ¨ (brightness) ./> buttons.

The BRIGHTNESS/CONTRAST OSD appears.

Press the ¨./> buttons again to adjust the picture brightness.

> . . . for more brightness

. . . . for less brightness

The OSD automatically disappears after about 3 seconds.

To reset, press the RESET button while the OSD is on. The brightness and contrast are both reset to the factory settings.

* The horizontal and vertical frequencies for the received input

signal appear in the BRIGHTNESS/CONTRAST OSD.

Customizing Your Monitor

BRIGHTNESS/CONTRAST

26 26

80.0kHz/ 75Hz

BRIGHTNESS/CONTRAST

26 26

80.0kHz/ 75Hz

Getting Started

ES C

Identifying Parts and Controls

See the pages in parentheses for further details.

Front

1 RESET (reset) button (page 17)

Resets the adjustments to the factory settings.

2 ASC (auto sizing and centering) button

(page 7)

Automatically adjusts the size and centering of the images.

3 INPUT (input) button and HD15/BNC

indicators (page 8)

Selects the HD15 or 5BNC video input signal. Each time you press this button, the input signal and corresponding indicator alternate.

4 ¨ (brightness) (./>) buttons (pages 8 –

17)

Adjust the picture brightness.

Function as the (./>) buttons when adjusting other items.

5 MENU (menu) button (pages 8, 10 -17)

Displays the MENU OSD.

6 > (contrast) (?//) buttons (pages 8 – 17)

Adjust the contrast.

Function as the (?//) buttons when adjusting other items.

7 u (power) switch and indicator (pages 19,

22)

Turns the monitor on or off. The indicator lights up in green when the monitor is turned on, and lights up in orange when the monitor is in power saving mode.

Rear

8 AC IN connector

Provides AC power to the monitor.

9 Video input 1 connector (HD15)

Inputs RGB video signals (0.714 Vp-p, positive) and SYNC signals.

* Display Data Channel (DDC) Standard of VESA

!º Video input 2 connector (5 BNC)

Inputs RGB video signals (0.714 Vp-p, positive) and SYNC signals.

Pin No. 1 2

3 4 5 6 7

Signal Red Green

(Composite Sync on Green)

Blue Ground DDC Ground* Red Ground Green Ground

Signal Blue Ground DDC + 5V* Ground Ground Bi-Directional

Data (SDA)* H. Sync V. Sync Data Clock(SCL)*

Pin No. 8 9 10 11 12

13 14 15

5 4 3 2

678910

1112131415

INPUT

RESET

ASC

HD15BNC



GENERAL

The operating instructions mentioned here are partial abstracts from the Operating Instruction Manual. The page numbers of the Operating Instruction Manual remain as in the manual.

1-1

Customizing Your Monitor

Introducing the On-screen Display System

Most adjustments are made using the MENU OSD.

MENU OSD

Press the MENU button to display the MENU OSD.

This MENU OSD contains links to the other OSDs described below.

1 COLOR

Displays the COLOR OSD for adjusting the color temperature.

CENTER

Displays the CENTER OSD for adjusting the centering of the picture.

3 SCREEN

Displays the SCREEN OSD for adjusting the vertical and horizontal convergence, etc.

4 ZOOM

Displays the ZOOM OSD for enlarging and reducing the picture.

OPTION

Displays the OPTION OSD for adjusting the OSD position and degaussing the screen, etc.

SIZE

Displays the SIZE OSD for adjusting the picture size.

7 LANG

Displays the LANGUAGE OSD for selecting the language.

8 GEOM

Displays the GEOMETRY OSD for adjusting the picture rotation and pincushion, etc.

9 EXIT

Closes the MENU OSD.

Navigating the MENU on-screen display

Select a link using the ¨./> and >?// buttons in the MENU OSD.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select a link.

The selected link turns yellow.

Press the MENU button.

The selected OSD appears.

If no buttons are pressed, the MENU OSD automatically disappears after about 10 seconds. To close the MENU OSD, select “EXIT” and press the MENU button.

Adjusting the on-screen display settings

Select an item using the ¨./> buttons and adjust or select the setting of that item using the >?// buttons.

To select an item, press the ¨. or > button.

The ” mark goes to the selected item and the item turns yellow.

To adjust or set an item, press the >? or / button.

When adjusting an item, the bar length and the figure increase or decrease. When setting an item, the p mark turns green.

EXIT

CENTER

SIZE

GEOM

COLOR

LANG

ZOOM

SCREEN

OPTION

Getting Started

Customizing Your Monitor

ES C

Using the CENTER On-screen Display

The CENTER settings allow you to adjust the centering of the picture. Once the setting is adjusted, it will be stored in memory for the current input signal.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ CENTER,” and press the MENU button again.

The CENTER OSD appears.

For horizontal adjustment

Press the >?// buttons.

/ . . . to move the picture right ? . . . to move the picture left

For vertical adjustment

Press the ¨./> buttons.

> . . . to move the picture up

. . . . to move the picture down

The OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset, press the RESET button while the OSD is on. The horizontal and vertical centerings are both reset to the factory settings.

Using the SIZE On-screen Display

The SIZE settings allow you to adjust the size of the picture. Once the setting is adjusted, it will be stored in memory for the current input signal.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ SIZE,” and press the MENU button again.

The SIZE OSD appears.

For horizontal adjustment

Press the >?// buttons.

/ . . . to increase picture size ? . . . to decrease picture size

For vertical adjustment

Press the ¨./> buttons.

> . . . to increase picture size

. . . . to decrease picture size

The OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset, press the RESET button while the OSD is on. The horizontal and vertical sizes are both reset to the factory settings.

SIZE

CENTER

1-2

Customizing Your Monitor

Using the GEOM (Geometry) Onscreen Display

The GEOM (geometry) settings allow you to adjust the shape and orientation of the picture. Once the rotation is adjusted, it will be stored in memory for all input signals received. All other adjustments will be stored in memory for the current input signal.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ GEOM,” and press the MENU button again.

The GEOMETRY OSD appears.

Press the ¨./> buttons to select the item you want to adjust.

Select

ROTATION

PINCUSHION

PIN BALANCE

KEYSTONE

KEY BALANCE

adjust the picture rotation

adjust the picture sides

adjust the picture side balance

adjust the picture width

adjust the picture shape balance

Press the >?// buttons to adjust the settings.

The OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset, press the RESET button while the OSD is on. The selected item is reset to the factory setting.

For

ROTATION

PINCUSHION

PIN BALANCE

KEYSTONE

KEY BALANCE

Press

/ . . . to rotate the picture clockwise

? . . . to rotate the picture counterclockwise

/ . . . to expand the picture sides

? . . . to contract the picture sides

/ . . . to move the picture sides to the right

? . . . to move the picture sides to the left

/ . . . to increase the picture width at the

top

? . . . to decrease the picture width at the

top

/ . . . to move the top of the picture to

the right

? . . . to move the top of the picture to

the left

ROTATION

GEOMETRY

Getting Started

Customizing Your Monitor

ES C

Using the ZOOM On-screen Display

The ZOOM settings allow you to enlarge or reduce the picture. Once the setting is adjusted, it will be stored in memory for the current input signal.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ ZOOM,” and press the MENU button again.

The ZOOM OSD appears.

Press the >?//buttons to adjust the picture zoom.

/ . . . to enlarge the picture ? . . . to reduce the picture

The OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset, press the RESET button while the OSD is on.

Note

The picture zoom adjustment will stop as soon as either the horizontal or vertical size reaches its maximum or minimum value.

Using the COLOR On-screen Display

You can change the monitor’s color temperature. For example, you can change the colors of a picture on the screen to match the actual colors of the printed picture. Once the setting is adjusted, it will be stored in memory for all input signals received.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ COLOR,” and press the MENU button again.

The COLOR OSD appears.

Press the >?// buttons to select the color temperature.

There are three color temperature modes in the OSD. The preset adjustments are: 5000K, 6500K, 9300K

Fine tunig the color temperature

Press the ¨./> buttons to select R (red), G (green), or B (blue) and adjust by pressing the >?// buttons.

The “5000K,” “6500K” or “9300K” disappears and the new color settings are memorized for each of the three color modes. The color temperature modes change as follows: 5000Kn 1, 6500Kn 2, 9300Kn 3

The OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset, press the RESET button while the OSD is on. The selected color temperature is reset to the factory settings.

5000K 6500K 9300K

COLOR

1 6500K 9300K

COLOR

ZOOM

73V

26H

1-3

Customizing Your Monitor

Using the SCREEN On-screen Display

Adjust convergence settings to eliminate red or blue shadows that may appear around objects on the screen. Adjust the CANCEL MOIRE function to eliminate wavy or elliptical lines that may appear on the screen. Once CANCEL MOIRE is adjusted, it will be stored in memory for the current input signal. All other adjustments will be stored in memory for all input signals received.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ SCREEN,” and press the MENU button again.

The SCREEN OSD appears.

Press the ¨./> buttons to select the item you want to adjust.

Press the >?// buttons to adjust the settings.

Select

H CONVERGENCE

V CONVERGENCE

TOP

V CONVER TOP

BOT

V CONVER BOTTOM

CANCEL MOIRE

ADJ *

MOIRE ADJUST

adjust the horizontal convergence

adjust the vertical convergence

adjust the screen’s upper vertical convergence

adjust the screen’s lower vertical convergence

eliminate elliptical or wavy lines on the screen

adjust the degree of moire cancellation

The OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset, press the RESET button while the OSD is on. The selected item is reset to the factory setting.

* CANCEL MOIRE must be “ON” for “

ADJ (MOIRE

ADJUST)” to appear on the screen.

For

H CONVERGENCE

V CONVERGENCE

TOP

V CONVER TOP

BOT

V CONVER BOTTOM

CANCEL MOIRE

ADJ

MOIRE ADJUST

Press

/ . . . to shift red shadows to the right

and blue shadows to the left

? . . . to shift red shadows to the left

and blue shadows to the right

/ . . . to shift red shadows up and blue

shadows down

? . . . to shift red shadows down and

blue shadows up

/ . . . to shift red shadows up and blue

shadows down

? . . . to shift red shadows down and

blue shadows up

/ . . . to shift red shadows up and blue

shadows down

? . . . to shift red shadows down and

blue shadows up

/ . . . to turn CANCEL MOIRE “ON”

? . . . to turn CANCEL MOIRE “OFF”

/ . . . to increase the moire cancellation

effect

? . . . to decrease the moire cancellation

effect

SCREEN

TOP BOT

H CONVERGENCE

OFF

Getting Started

Customizing Your Monitor

ES C

Using the OPTION On-screen Display

The OPTION OSD allows you to manually degauss the screen and adjust settings such as the OSD position and power saving delay time. It also allows you to lock the controls.

Degaussing the screen

The monitor screen is automatically degaussed (demagnetized) when the power is turned on. You can also manually degauss the monitor.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ OPTION,” and press the MENU button again.

The OPTION OSD appears.

Press the ¨./> buttons to select “

(MANUAL

DEGAUSS).”

Press the > / button.

The screen is degaussed for about 2 seconds.

If you need to degauss the screen a second time, wait for at least 20 minutes before repeating the steps above.

The OPTION OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

Changing the on-screen display position

You can change the OSD position (for example, when you want to adjust the picture behind the OSD).

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ OPTION,” and press the MENU button again.

The OPTION OSD appears.

Press the ¨./> buttons to select “

(OSD H

POSITION)” or “

(OSD V POSITION).”

Select “

(OSD H POSITION)” to adjust the horizontal

position.

Select “

(OSD V POSITION)” to adjust the vertical

position.

Press the >?// buttons to move the OSD to the desired position.

The OPTION OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset, press the RESET button while the OSD is on.

MANUAL DEGAUSS

UNLOCK

1 MIN

OPTION

ZZ...

MANUAL DEGAUSS

UNLOCK

1 MIN

OPTION

ZZ...

OSD H POSITION

UNLOCK

1 MIN

OPTION

ZZ...

OSD V POSITION

UNLOCK

OPTION

AUTO

1-4

Customizing Your Monitor

Locking the controls

The control lock function disables all of the buttons on the front panel except the u (power) switch, MENU and INPUT buttons.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ OPTION,” and press the MENU button again.

The OPTION OSD appears.

Press the ¨./> buttons to select “

(CONTROL

LOCK).”

Press the >?// buttons to select “LOCK.”

The OPTION OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

Once you select “LOCK,” you cannot select any items except “EXIT” and ”

OPTION” in the MENU OSD.

If you press any button other than the u (power) switch, MENU and INPUT buttons, the

mark appears on the

screen.

To cancel the control lock

Repeat steps 1 through 3 above and press the >?// buttons to select “UNLOCK.”

Setting the power saving delay time

You can set the delay time before the monitor enters the power saving mode. See page 19 for more information on this monitor’s power saving capabilities.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ OPTION,” and press the MENU button again.

The OPTION OSD appears.

Press the ¨./> buttons to select “

ZZ...

(PWR SAVE

DELAY).”

Press the >?// buttons to select the desired time.

When PWR SAVE DELAY is set to “OFF,” the monitor does not go into power saving mode.

The OPTION OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset, press the RESET button while the OSD is on.

MANUAL DEGAUSS

UNLOCK

1 MIN

OPTION

ZZ...

MANUAL DEGAUSS

UNLOCK

1 MIN

OPTION

ZZ...

PWR SAVE DELAY

OPTION

5 SEC 60 MIN

1 MIN OFF

AUTO

ZZ...

CONTROL LOCK

OPTION

UNLOCK LOCK

AUTO

Getting Started

Customizing Your Monitor

ES C

Using the LANG (Language) Onscreen Display

English, French, German, Spanish and Japanese versions of the OSDs are available.

Press the MENU button.

The MENU OSD appears.

Press the ¨./> and >?// buttons to select “ LANG,” and press the MENU button again.

The LANGUAGE OSD appears.

Press the ¨./> buttons to select the desired language.

ENGLISH: English, FRANÇAIS: French, DEUTSCH: German, ESPAÑOL: Spanish, or

: Japanese.

The OSD automatically disappears after about 30 seconds. To close the OSD, press the MENU button again.

To reset to English, press the RESET button while the OSD is on.

RESET

Resetting the Adjustments

Resetting an adjustment item

Press the MENU, ¨./> and >?//buttons to select the OSD containing the item you want to reset.

Press the ¨./> buttons to select the item you want to reset.

Press the RESET button.

Resetting all of the adjustment data for the current input signal

When there is no OSD displayed, press the RESET button.

All of the adjustments data for the current input signal is reset to the factory settings. Note that adjustment data not affected by changes in input signal (OSD language, OSD position, input signal selection, power saving delay time and the control lock function) is not reset to the factory settings.

Resetting all of the adjustment data for all input signals

Press and hold the RESET button for more than two seconds.

All of the adjustment data, including the brightness and contrast, is reset to the factory settings.

ENGLISH FRANÇAIS DEUTSCH ESPAÑOL

LANGUAGE

1-5

Additional Information

Warning Messages

If there is something wrong with the input signal, one of the following messages appears. The message disappears after about 30 seconds.

Additional Information

1 The input signal condition

“OUT OF SCAN RANGE” indicates that the input signal

is not supported by the monitor’s specifications. “NO INPUT SIGNAL” indicates that no signal is input, or

the input signal from the selected input connector is not received.

2 The selected input connector

Indicates which input connector is receiving the wrong signal. If there is something wrong with the signal from both input connectors, “HD15” and “BNC” are displayed alternately.

To solve these problems, see “Troubleshooting” below.

Troubleshooting

This section may help you isolate the cause of a problem and as a result, eliminate the need to contact technical support.

Symptom Check these items No picture

If the u indicator is not lit

If the “NO INPUT SIGNAL” message appears on the screen, or if the u indicator is either orange or alternating between green and orange

If the “OUT OF SCAN RANGE” message appears on the screen

If no message is displayed and the u indicator is green or flashing orange

If using a Macintosh system

If using Windows® 95

Picture is scrambled

• Check that the power cord is properly connected.

• Check that the u (power) switch is in the “on” position.

• Try pressing any key on the computer keyboard.

• Check that your computer power switch is in the “on” position.

• Check that the input select setting is correct.

• Check that the video signal cable is properly connected and all plugs are firmly seated in their sockets.

• Check that the 5 BNCs are connected in the correct order (from left to right: Red– Green–Blue–HD–VD) (page 6).

• Ensure that no pins are bent or pushed in the HD15 video input connector.

• Check that the video board is completely seated in the proper bus slot.

• Check that the video frequency range is within that specified for the monitor. (Horizontal: 30 – 92 kHz, Vertical: 48 – 160 Hz) Refer to your computer‘s instruction manual to adjust the video frequency range.

• If you are using a video signal cable adapter, check that it is correct.

• See “Self-diagnosis Function” (page 22).

• Check that the Macintosh adapter and the video signal cable are properly connected (page 6).

• If you cannot find “GDM-200PS” among the Sony monitors in the Windows 95 monitor selection screen, select the DDC standard monitor or install the Windows 95 Monitor Information Disk (page 7). The DDC standard does not apply to the 5 BNC connectors. If you use the DDC standard, connect the computer to the HD15 connector with the supplied video signal cable.

• Check your graphics board manual for the proper monitor setting.

• Check this manual and confirm that the graphics mode and the frequency you are trying to operate at is supported. Even if the frequency is within the proper range, some video boards may have a sync pulse that is too narrow for the monitor to sync correctly.

INFORMATION

OUT OF SCAN RANGE INPUT : HD15

Getting Started

Additional Information

ES C

Symptom Check these items Color is not uniform

You cannot adjust the monitor with the buttons on the front panel

White does not look white

Screen image is not centered or sized properly

Edges of the image are curved

White lines show red or blue shadows at edges

Picture is fuzzy

Picture bounces or has wavy oscillations

Picture is flickering

Picture appears to be ghosting

Wavy or elliptical (moire) pattern is visible

Two fine horizontal lines (wires) are visible

Hum is heard right after the power is turned on

• Degauss the monitor (page 15). If you place equipment which generates a magnetic field, such as a loudspeaker, near the monitor, or you change the direction of the monitor, color may lose uniformity. The degauss function demagnetizes the metal frame of the CRT to obtain a neutral field for uniform color reproduction. If a second degauss cycle is needed, allow a minimum interval of 20 minutes for the best result.

• If the control lock function is set to on, set it to off using the OPTION OSD (page 16).

• Adjust the color temperature (page 13).

• Check that the 5 BNCs are connected in the correct order (from left to right: Red– Green–Blue–HD–VD) (page 6).

• Adjust the size or centering (page 11).

• Some video modes do not fill the screen to the edges. This problem tends to occur with certain video boards.

• Adjust the geometry (page 12).

• Adjust the convergence (page 14).

• Adjust the contrast and brightness (page 9).

• If red or blue shadows appear along the edges of images, adjust the convergence (page

14).

• If the moire is cancelled, the picture may become fuzzy. Decrease the moire cancellation effect (page 14).

• Isolate and eliminate any potential sources of electric or magnetic fields. Common causes for this symptom are electric fans, fluorescent lighting or laser printers.

• If you have another monitor close to this monitor, increase the distance between them to reduce the interference.

• Try plugging the monitor into a different AC outlet, preferably on a different circuit.

• Try the monitor on a different computer in a different room.

• Set the refresh rate on the computer to obtain the best possible picture by referring to your computer’s manual.

• Eliminate the use of video cable extensions and/or video switch boxes if this symptom occurs. Excessive cable length or a weak connection can produce this symptom.

• Cancel the moire (page 14). The moire may be modified depending on the connected computer.

• Due to the relationship between resolution, monitor dot pitch and the pitch of some image patterns, certain screen backgrounds sometimes show moire. Change your desktop pattern.

• These wires stabilize the vertically striped aperture grille (page 19). This aperture grille allows more light to pass through to the screen giving the Trinitron CRT more color and brightness.

• When the power is turned on, the auto-degauss cycle is activated. While the autodegauss cycle is activated, a hum may be heard. The same hum is heard when the monitor is manually degaussed. This is not a malfunction.

1-6

2-1. CABINET REMOVAL

Eight screws (+BVTT 3 x 8)

SECTION 2

DISASSEMBLY

Two claws

Four screws (+BVTT 3 x 8)

Video shield

GDM-200PS/200PST/200PST9

Two screws (+BVTP 4 x 16)

Cabinet

2-2. A BOARD REMOVAL

EMI shield

CN406 CN405

CN404 CN403 CN401 CN402

2-1

A board2 Three screws

(+BVTT 3 x 8)

GDM-200PS/200PST/200PST9

2-3. AC INLET AND I/O TERMINAL BOARD REMOVAL

I/O terminal board

Two screws (Ext tooth washer screw M4)

CN601

Rear shield

A board

Two screws

Connector (9pin)

GND

CN404

(+BVTT 3 x 8)

CN403

AC inlet (3P)

Screw (Ext tooth washer screw M4)

Two screws (+KTP 3 x 8)

2-4. D BOARD REMOVAL 2-5. SERVICE POSITION

D board

Screw (+BVTT 4 x 8)

Shield plate

Printed circuit board holder

Three screws (+BVTP 3 x 10)

CN602

2-2

CN601

AC inlet (3P)

Engage a slit in D board heat sink with the base chassis to fix.

D board

+ 26 hidden pages