SONY CPDG500 - Service Manual Immediate Download

CHASSIS

SERVICE MANUAL

SPECIFICATIONS

CPD-G500

US Model

Canadian Model

AEP Model

Chassis No. SCC-L22C-A

S.Hemisphere Model

Chassis No. SCC-L22G-A

Equator Model

Chassis No. SCC-L22F-A

TRINITRON® COLOR COMPUTER DISPLAY

CRT

0.24 mm aperture grille pitch

21 inches measured diagonally

90-degree deflection

FD Trinitron

Viewable image size

Approx. 403.8

× 302.2 mm (w/h)

(16

× 12 inches)

19.8" viewing image

Resolution

Maximum

Horizontal: 2048 dots

Vertical: 1536 lines

Recommended

Horizontal: 1600 dots

Vertical: 1200 lines

Standard image area

Approx. 388

× 291 mm (w/h)

(15 3/8

× 11 1/2 inches)

Approx. 364

× 291 mm (w/h)

(14 3/8

× 11 1/2 inches)

Deflection frequency*

Horizontal: 30 to 121 kHz

Vertical: 48 to 160 Hz

AC input voltage/current

100 to 240 V, 50 60 Hz, 2.0 1.0 A

Power consumption

Approx. 145 W

Dimensions

Approx. 497

× 480 × 478 mm (w/h/d)

(19 5/8

× 19 × 18 7/8 inches)

Mass

Approx. 32 kg (70 lb 9 oz)

Plug and Play

DDC1/2B/2Bi, GTF**

* Recommended horizontal and vertical timing condition

· Horizontal sync width duty should be more than 4.8% of total

horizontal time or 0.8

µs, whichever is larger.

· Horizontal blanking width should be more than 2.3

µsec.

· Vertical blanking width should be more than 450

µsec.

** If the input signal is Generalized Timing Formula (GTF)

compliant, the GTF feature of the monitor will automatically

provide an optimal image for the screen.

Design and specifications are subject to change without notice.

CPD-G500

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 microam-

peres).

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.

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.

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 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

0.15

µF

Voltmeter

(0.75 V)

To Exposed Metal

Parts on Set

Earth Ground

CPD-G500

This monitor is equipped with a self-diagnosis function. If there is

a problem with your monitor or computer(s), the screen will go

blank and the 1 (power) indicator will either light up green or

flash orange. If the 1 (power) indicator is lit in orange, the

computer is in power saving mode. Try pressing any key on the

keyboard.

If the 1 (power) indicator is green

1 Remove any plugs from the video input 1 and 2

connectors, or turn off the connected computer(s).

2 Press the 1 (power) button twice to turn the monitor

off and then on.

3 Move the control button , for 2 seconds before the

monitor enters power saving mode.

If all four color bars appear (white, red, green, blue), the monitor

is working properly. Reconnect the video input cables and check

the condition of your computer(s).

If the color bars do not appear, there is a potential monitor failure.

Inform your authorized Sony dealer of the monitor's condition.

If the 1 (power) indicator is flashing orange

Press the 1 (power) button twice to turn the monitor off

and then on.

If the 1 (power) indicator lights up green, the monitor is working

properly.

If the 1 (power) indicator is still flashing, there is a potential

monitor failure. Count the number of seconds between orange

flashes of the 1 (power) indicator and inform your authorized

Sony dealer of the monitor's condition. Be sure to note the model

name and serial number of your monitor. Also note the make and

model of your computer and video board.

RESET

INPUT HD15 BNC

1 (power) indicator

Power saving function

This monitor meets the power-saving guidelines set by VESA,

ENERGY STAR, and NUTEK. If the monitor is connected to a

computer or video graphics board that is DPMS (Display Power

Management Signaling) compliant, the monitor will automatically

reduce power consumption in three stages as shown below.

"Sleep" and "deep sleep" are power saving modes defined by the

Environmental Protection Agency.

** When your computer enters a power saving mode, the input signal is

cut and NO INPUT SIGNAL appears on the screen. After a few

seconds, the monitor enters a power saving mode.

Power mode

Power consumption

1 (power)

indicator

normal

operation

145 W

green

1 standby

100 W

green and orange

alternate

2 suspend

(sleep)*

15 W

green and orange

alternate

3 active off**

(deep sleep)*

Approx. 1 W

orange

power off

0 W

off

DIAGNOSIS

CPD-G500

TIMING SPECIFICATION

MODE AT PRODUCTION

MODE 1

MODE 2

MODE 3

MODE 4

RESOLUTION

1600 X 1200

1920 X 1440

1800 X 1440

1800 X 1350

CLOCK

229.500 MHz

297.000 MHz

299.436 MHz

300.000 MHz

-- HORIZONTAL --

H-FREQ

106.250 kHz

112.500 kHz

120.740 kHz

120.968 kHz

usec

H. TOTAL

9.412

8.889

8.282

8.267

H. BLK

2.440

2.424

2.271

2.267

H. FP

0.279

0.485

0.668

0.480

H. SYNC

0.837

0.754

0.481

0.667

H. BP

1.325

1.185

1.122

1.120

H. ACTIV

6.972

6.465

6.011

6.000

-- VERTICAL --

V. FREQ(HZ)

85.000 Hz

75.000 Hz

80.120 Hz

85.009 Hz

lines

V. TOTAL

1250

1500

1507

1423

V. BLK

V. FP

1111

V. SYNC

3333

V. BP

V. ACTIV

1200

1440

1350

-- SYNC --

INT(G)

EXT(H/V)/POLARITY

YES P/P

EXT(CS) /POLARITY

INT/NON INT

NON INT

99.07.02 VER.

CPD-G500

Note: Hand degauss must be used on stand-by or power-off condition.

This model has an automatic earth magnetism correction function by using an earth

magnetism sensor and a LCC coil. When using a hand degauss while monitor (LCC

coil) is being operated, it sometimes gets magnetized, and the system may not work

properly as a result.

TABLE OF CONTENTS

Section

Title

Page

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

2. DISASSEMBLY

2-1.

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

2-2.

D Board Removal .............................................. 2-1

2-3.

G Board Removal .............................................. 2-2

2-4.

A Board, I/O Terminal Board Assembly

Removal ............................................................. 2-2

2-5.

N Board Removal .............................................. 2-3

2-6.

Service Position .................................................. 2-3

2-7.

Bezel Assembly, H1 Board Removal ................ 2-4

2-8.

Picture Tube Removal ....................................... 2-4

2-9.

J Board Removal ............................................... 2-5

2-10. Harness Location ............................................... 2-6

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

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

5. DIAGRAMS

5-1.

Block Diagrams .................................................. 5-1

5-2.

Frame Shcematic Diagram ................................. 5-7

5-3.

Circuit Boards Location ..................................... 5-9

5-4.

Schematic Diagrams and Printed Wiring

Boards ................................................................. 5-9

(1)

Schematic Diagram of A Board ........................ 5-11

(2)

Schematic Diagrams of H1, J Boards ............... 5-17

(3)

Schematic Diagram of D Board ........................ 5-19

(4)

Schematic Diagrams of N (a, b, c) Board .. 5-23

(5)

Schematic Diagram of G Board ........................ 5-31

5-5.

Semiconductors ................................................. 5-35

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