Sony CPD-M151 Service manual

SERVICE MANUAL

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Pin No.

Signal

Red

Green (Composite Sync on Green)

Blue

ID (Ground)

DDC Ground*

Red Ground

Green Ground

Signal

Blue Ground

DDC + 5V*

Ground

ID (Ground)

Bi-Directional Data (SDA)*

H. Sync

V. Sync

Data Clock (SCL)*

HD15 pin assignment

* Display Data Channel (DDC) Standard of VESA

* Recommended horizontal and vertical timing conditions

Horizontal sync width duty should be more than 4.8% of total horizontal time or 0.8 µsec., whichever is larger. Horizontal blanking width should be more than 2.5 µsec. Vertical blanking width should be more than 450 µsec.

Design and specifications are subject to change without notice.

SPECIFICATIONS

CPD-M151

US Model

Canadian Model

AEP Model

Chassis No. SCC-G25H-A

LCD panel Panel type: a-Si TFT Active Matrix

Input signal format RGB operating frequency*

Pixel efficiency 99.99 % Resolution H: max. 1024 dots

Power requirements Operation:

Power consumption Monitor only: Max. 25 W

Dimensions (w/h/d) With the stand:

Mass Approx. 5.1 kg (11 lb 4 oz)

Plug & Play DDC/DDC1/DDC2B Supplied accessories • LCD monitor (1)

MICROFILM

Picture size: 15 inches (38 cm)

fh: 30 – 61 kHz fv: 50 – 75 Hz

V: max. 768 lines

AC 100 – 240 V, 50 – 60 Hz

Input:

DC 12 V (using the AC adapter)

Including the AC adapter:

Max. 35 W

Approx. 395 × 358 × 173 mm

(15

/8 × 14 1/8 × 6 7/8 in.)

Without the stand (upright):

Approx. 395 × 289 × 76 mm

(15

/8 × 11 1/2 × 3 in.)

Without the stand (25° tilted):

Approx. 395 × 274 × 202 mm

(15

/8 × 10 7/8 × 8 in.)

including the stand

• Rear cover (1)

• Power cord (1)

• AC adapter (1)

• HD15 video signal cable (1)

• Macintosh adapter (1)

• Rubber pads (2)

• Windows

• Macintosh Utility Disk (1)

• Warranty card (1)

• These operating instructions (1)

Monitor Information

Disk/Utility Disk (1)

TFT LCD COLOR COMPUTER DISPLAY

CPD-M151

u Indicator

Green

Green and orange alternate

Orange

Off

Power consumption*

≤ 25 W (≤ 35 W) ≤ 1.5 W (≤ 4 W)

≤ 1.5 W (≤ 4 W)

Power consumption mode

Normal operation

Standby (1st mode)

Suspend (2nd mode) (sleep)**

Active-off (3rd mode)*** (deep sleep)**

Power-off

Power Saving Function

This monitor meets the power-saving guidelines set by VESA and NUTEK . If the monitor is connected to a computer or video graphics board that is VESA DPMS (Display Power Management Signaling) compliant, the monitor will automatically reduce power consumption in three stages as shown right. You can set the delay time before the monitor enters the power saving mode using the OSD. Set the time according to “Setting the Power Saving Delay Time” on page 1-7.

* Power consumption of the monitor only. The figures in

parentheses are power consumption of the monitor including the AC adapter.

** “Sleep” and “deep sleep” are power saving modes defined by

the Environmental Protection Agency.

*** When your computer enters the power saving mode, the input

signal is cut and NO INPUT SIGNAL appears on the screen. After the time set in “Changing the Power Saving Delay Time” (page 1-7) has elapsed, the monitor enters the power saving mode.

NERGY STAR, as well as the more stringent

TIMING SPECIFICATION

MODE AT PRODUCTION SIGNAL MODE RESOLUTION 640 X 400 640 X 480 640 X 480 720 X 400 800 X 600 800 X 600 832 X 624 1024 X 768 1024 X 768 1024 X 768 1024 X 768 CLOCK 25.180 MHz 25.175 MHz 31.500 MHz 28.322 MHz 40.000 MHz 49.500 MHz 57.285 MHz 65.000 MHz 75.000 MHz 78.750 MHz 80.000 MHz — HORIZONTAL — H-FREQ 31.48 kHz 31.47 kHz 37.50 kHz 31.47 kHz 37.88 kHz 46.88 kHz 49.73 kHz 48.36 kHz 56.47 kHz 60.02 kHz 60.24 kHz

H. TOTAL 31.771 31.778 26.667 31.777 26.400 21.333 20.110 20.677 17.707 16.660 16.660 H. SYNC 2.542 3.813 2.032 3.813 3.200 1.616 1.117 2.092 1.813 1.219 1.200 H. BP 2.859 1.907 3.810 1.907 2.200 3.232 3.910 2.462 1.920 2.235 2.200 H. ACTIV 25.417 25.422 20.317 25.422 20.000 16.162 14.524 15.754 13.653 13.003 12.800 — VERTICAL — V. FREQ(Hz) 70.1 Hz 59.9 Hz 75.0 Hz 70.1 Hz 60.3 Hz 75.0 Hz 74.6 Hz 60.0 Hz 70.1 Hz 75.0 Hz 74.9 Hz

V. TOTAL 449 525 500 449 628 625 667 806 806 800 804 V. SYNC 2 2 324336633 V. BP 36 33 16 35 23 21 39 29 29 28 30 V. ACTIV 400 480 480 400 600 600 624 768 768 768 768 — SYNC — (H/V)/POLARITY N/N N/N N/N N/P P/P P/P N/N N/N N/N P/P N/N

MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 MODE 7 MODE 8 MODE 9 MODE 10 MODE 11

NEC (70Hz) VGA (Graph) VESA (75Hz) VGA (TEXT) VESA (60Hz) VESA (75Hz) PMAC 16" VESA (60Hz) VESA (70Hz) VESA (75Hz) PMAC 19"

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– 2 –

SAFETY CHECK-OUT

CPD-M151

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

AC Voltmete (0.75 V)

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 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” 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.

Earth Ground

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

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.

– 3 –

CPD-M151

TABLE OF CONTENTS

Section Title Page

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

2. DISASSEMBLY

2-1. Back Cover Assy Removal ................................. 2-1

2-2. Cabinet Complete Assy Removal ....................... 2-1

2-3. A Board, J Board and Inverter Removal ............. 2-2

2-4. H Board Removal ................................................. 2-2

2-5. LCD Panel and Lamp Unit Removal ................... 2-3

3. ADJUSTMENTS ...................................................... 3-1

4. DIAGRAMS

4-1. Block Diagrams .................................................... 4-1

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

5. EXPLODED VIEWS

5-1. Chassis ................................................................. 5-1

5-2. Packing Materials ................................................ 22

– 4 –

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.

Getting Started

Precautions

Installation

• Prevent internal heat buildup by allowing adequate air circulation. Do not place the monitor on surfaces (rugs, blankets, etc.) or near materials (curtains, draperies) that may block the ventilation holes.

• Do not install the monitor near heat sources such as radiators or air ducts, or in a place subject to direct sunlight, excessive dust, mechanical vibration or shock.

• Do not place the monitor near equipment which generates magnetism, such as a transformer or high voltage power lines.

Handling the LCD screen

• Bright points of light (red, blue or green) may appear on the LCD screen. This is not a malfunction. The LCD screen is made with high-precision technology and more than 99.99 % of the picture element is intact. However, some of the picture element may not appear or some of the picture element may appear constantly.

• Do not leave the LCD screen facing the sun as it can damage the LCD screen. Take care when you place the monitor by a window.

• Do not push or scratch the LCD screen. Do not place a heavy object on the LCD screen. This may cause the screen to lose uniformity.

• If the monitor is used in a cold place, a residual image may appear on the screen. This is not a malfunction. When the monitor becomes warm, the screen returns to normal.

• If a still picture is displayed for a long time, a residual image may appear. The residual image will eventually disappear.

• The screen and the cabinet become warm during operation. This is not a malfunction.

Replacement of the fluorescent tube

A specially designed fluorescent tube is installed as the lighting apparatus for this monitor. If the LCD screen becomes dark, unstable or does not turn on, replace the fluorescent tube with an new one. Consult your Sony dealer when replacing the fluorescent tube.

Getting Started

for 100 to 120 V AC for 200 to 240 V AC

for 240 V AC only

Maintenance

• 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 benzine.

• Do not rub, touch, or tap the surface of the screen with sharp or abrasive items such as a ballpoint pen or screwdriver. This type of contact may result in a scratched picture tube.

• Clean the screen with a soft cloth. If you use a glass cleaning liquid, do not use any type of cleaner containing an antistatic solution or similar additive as this may scratch the screen’s coating.

Transportation

• When you transport this monitor, grip the bottom of the screen firmly with both hands. If you drop the monitor, you may be injured or the monitor may be damaged.

• When you transport this monitor for repair or shipment, use the original carton and packing materials.

Warning on power connection

• Use an appropriate power cord for your local power supply.

For the customers in the U.S.A.

If you do not use the appropriate cord, this monitor will not conform to mandatory FCC standards.

For the customers in the UK

If you use the monitor in the UK, please use the supplied UK cable with the UK plug.

Examples of plug types

The outlet should be installed near the equipment and be easily accessible.

Disposal of the monitor

• Do not dispose of the monitor with general waste.

Do not include the monitor with household waste.

• The fluorescent tube includes mercury. Dispose of the monitor in accordance with the regulations of your local sanitation authority.

Getting Started

F D ES

Identifying Parts and Controls

See the pages in parentheses for further details.

Front

1 u (power) switch and indicator (pages 10,

20)

Turns the monitor on or off. The 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.

2 MENU (menu) button (pages 11 – 17, 20)

Displays the MENU OSD (On-Screen Display).

3 ¨ (brightness) (˘) button (pages 11 – 17)

Adjusts the picture brightness.

Functions as the ˘ button when selecting menu items.

4 > (contrast) (≥) button (pages 11 – 17)

Adjusts the contrast.

Functions as the ≥ button when selecting menu items.

5 +/– (adjust) buttons (pages 13 – 17)

Adjusts the selected menu item.

6 AUTO button (page 12)

When the signal from the computer is displayed on this monitor, press the AUTO button to automatically adjust the picture to the computer. You also should press this button if the picture is not centered or if it is fuzzy.

Rear

7 Security lock (

)

You can attach the Kensington’s security cable (not supplied).

8 RGB input connector (HD15) (page 7)

Input analog RGB video signal (0.714 Vp-p, positive) and SYNC signal.

9 DC IN connector (page 7)

Provides DC power to the monitor from the AC adaptor.

SECTION 1

GENERAL

1-1

Getting Started

Setup

Before using this monitor, check that the following items are included in your carton:

• LCD monitor (1)

• Rear cover (1)

• Power cord (1)

• AC adapter (1)

• HD15 video signal cable (1)

• Macintosh adapter (1)

• Rubber pads (2)

• Windows

Monitor Information Disk/Utility Disk (1)

• Macintosh Utility Disk (1)

• Warranty card (1)

• These operating instructions (1)

Set up

You can set up the monitor on its stand or use it without the stand. The procedure of connecting cables and attaching the rear cover differs depending on how you set up the monitor. In either case, read: Step 1: Connect the monitor to the computer Step 2: Connect the power cord to connect the monitor to the computer and power source. The connection is explained using the stand-type set up for the illustration; however, the connector to be connected and adapter required are the same even when the stand is not used.

Stand set up

Connect the video signal cable and power cord, then attach the rear cover.

To adjust the angle

The tilt feature allows the monitor to be adjusted within 65° upward. To adjust the angle, hold at the bottom with both hands as illustrated.

65°

Set up without the stand

First detach the stand, and then connect the video signal cable and power cord. Attach the rear cover. The rear cover becomes the stand. See “Using the monitor without the stand” on page 8.

To adjust the angle

The tilt feature allows the monitorto be adjusted within 25° upward. To adjust the angle, hold at the bottom and open the stand as illustrated.

25°

Getting Started

F D ES

IBM PC/AT or compatible computer

HD15 video signal cable (supplied)

to monitor output

HD15 video signal cable (supplied)

to monitor output

Connecting to a Macintosh

Use the supplied Macintosh adapter.

* Connect the supplied Macintosh adapter to the computer before

connecting the cable. This adapter is compatible with Macintosh LC, Performa, Quadra, Power Macintosh and Power Macintosh G3 series computers (sold before January, 1999). If you are connecting to a Power Macintosh G3 series that sold after January 1999, you will need a different adapter (not supplied). Macintosh II series and some older versions of PowerBook models may need an adapter with micro switches (not supplied).

Step 2: Connect the power cord

With the monitor and computer switched off, connect one end of the power cord to the AC power adapter, and the AC power adaptor to the monitor. Then connect the other end o the power cord to a power outlet.

to HD15

Macintosh adapter (supplied)*

Macintosh or compatible computer

Step 1: Connect the monitor to the computer

Turn off the monitor and computer before connecting.

Connecting to an IBM PC/AT or compatible computer

If your PC system is not compatible with Plug & Play (DDC1 and DDC2B)

This monitor uses the No. 9 pin in the video signal connector for Plug & Play (DDC1 and DDC2B) compatibility. See page 21 for the location of the No. 9 pin.

• If your computer accepts the No. 9 pin, use the supplied HD15 video signal cable.

• If your computer does not accept the No. 9 pin, please consult your dealer for advice on obtaining an HD15 adapter.

to HD15

to a power outlet

Power cord (supplied)

to DC IN

AC power adapter (supplied)

1-2

Getting Started

Step 3: Attaching the rear cover

After connecting the computer and power cord, attach the supplied rear cover. Make sure that you keep the screen upright when attaching or detaching the rear cover.

Clamp the AC adapter cord.

Press the rear cover against the part for attaching the cover.

Unlocked

Locked

Align the marking tape of the AC adapter cord to the clamp, wind it once and close the clamp.

Clamp

Marking tape of the AC adapter cord

Turn the screw to fasten the rear cover.

Using the monitor without the stand

Prepare:

Philip’s screw driver Soft cloth to place under the LCD panel

Remove the screws from the fixing shaft of the stand.

Place the monitor on the soft cloth with the LCD panel facing down, and pull the stand out from the monitor.

Getting Started

F D ES

Connect the video signal cable and AC adapter cord to the monitor.

Clamp the AC adapter cord.

Press the rear cover against the part for attaching the cover.

Align the marking tape of the AC adapter cord to the clamp, wind it once and close the clamp.

Clamp

Marking tape of the AC adapter cord

Turn the screw to fasten the rear cover.

Attach the rubber pads to the bottom of the monitor.

After attaching the rubberpads, which prevent slipping, stand the monitor up.

Unlocked

Locked

Peel off

1-3

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