Sony CPD-E43 Manual de usuario

CHASSIS

SERVICE MANUAL

SPECIFICATIONS

CPD-E430

CRV

AEP Model

Chassis No. SCC-L42G-A

TRINITRON

COLOR COMPUTER DISPLAY

CRT0.24 mm aperture grille pitch, 90-degree deflection, FD Trinitron

19 inches measured diagonally

Viewable image sizeApprox. 365 ×274 mm (w/h) (14 3/

×10 7/

inches)

18.0" viewing image

Resolution (H:Horizontal, V:Vertical)

Maximum: H: 1920 dots, V: 1440 lines

Recommended: H: 1280 dots, V: 1024 lines

Input signal levels

Video signal: Analog RGB: 0.700 Vp-p (positive), 75 Ω

SYNC signal: H/V separate or composite sync:

TTL 2 kΩ, Polarity free

Sync on Green: 0.3 Vp-p (negative)

Standard image areaApprox. 352 ×264 mm

(13 7/

×10 1/

inches)

Deflection frequency (H:Horizontal, V:Vertical)

H: 30 to 96 kHz, V: 48 to 170 Hz

AC input voltage/current

100 to 240 V, 50 – 60 Hz, 2.0 – 1.0 A

Power ConsumptionApprox. 135 W

Operating temperature

10 ºC to 40 ºC

Dimensions Approx. 451 ×471 ×461 mm (w/h/d)

(17 7/

×18 5/

×18 1/

inches)

Mass Approx. 25.5 kg (56 lb 3 oz)

Plug and Play DDC2B/DDC2Bi

GTF

CPD-E430 (E) 2

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.

3. Measuring the voltage drop across a resistor by means of a VOM or bat-

tery-operated AC voltmeter. The “limit”indication 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)

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 connec-

tions. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are “pinched”or con-

tact high-wattage resistors.

3. Check that all control knobs, shields, covers, ground straps, and mount-

ing 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 deterio-

ration. Point them out to the customer and recommend their replacement.

6. Check the line cords for cracks and abrasion. Recommend the replace-

ment 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 de-

scribed below.

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

1.5 k

Ω

0.15 µF

Voltmeter

(0.75 V)

To Exposed Metal

Parts on Set

Earth Ground

SAFETY CHECK-OUT

CPD-E430 (E) 3

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 NUM-

BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-

MENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT

ARE CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN THIS

MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-

CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-

TION IS SUSPECTED.

CPD-E430 (E) 4

POWER SAVING FUNCTION

This monitor meets the power-saving guidelines set by VESA, TCO’99,

and ENERGY STAR. If no signal is input to the monitor from your

computer, the monitor will automatically reduce power consumption as

shown below.

When your computer enters power saving mode, NO SIGNAL appears

on the screen. After a few seconds, the monitor enters power saving

mode.

“Deep sleep”is power saving mode defined by the Environmental

Protection Agency.

Power mode Power consumption !(power)

indicator

normal operation ≤135 W green

active off*

(deep sleep)*

≤3 W orange

CPD-E430 (E) 5

DIAGNOSIS

Failure

+B failure

Horizontal / Vertical Deflection

failure, Thermal protector

ABL protector

HV failure

Aging / Self Test

Out of scan range

Power LED

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

Amber →Off →Green →Off

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

Green (OSD indication)

Aging Mode (Video Aging) : During Power Save, press MENU button for longer than 2 second.

Self Test (OSD Color Bar) : During Power Save, push up Control button for longer than 2 second.

Reliability Check Mode : During Power Save, push down Control button for longer than 2 second.

CPD-E430 (E) 6

TIMING SPECIFICATION

MODE AT PRODUCTION

MODE 1 MODE 2 MODE 3

RESOLUTION

640 X 480 1280 X 1024 1600 X 1200

CLOCK

25.175 MHz 157.500 MHz 202.500 MHz

HORIZONTAL

H-FREQ

31.469 kHz 91.146 kHz 93.750 kHz

usec usec usec

H. TOTAL

31.778 10.971 10.667

H. BLK

6.356 2.844 2.765

H. FP

0.636 0.406 0.316

H. SYNC

3.813 1.016 0.948

H. BP

1.907 1.422 1.501

H. ACTIV

25.422 8.127 7.901

VERTICAL

V. FREQ (HZ)

59.940 Hz 85.024 Hz 75.000 Hz

lines lines lines

V. TOTAL

525 1072 1250

V. BLK

45 48 50

V. FP

10 1 1

V. SYNC

23 3

V. BP

33 44 46

V. ACTIV

480 1024 1200

SYNC

INT(G)

NO NO NO

EXT (H/V) /POLARITY

YES N/N YES P/P YES P/P

EXT (CS) /POLARITY

NO NO NO

INT/NON INT

NON INT NON INT NON INT

2001.6.15 VER.

CPD-E430 (E) 7

TABLE OF CONTENTS

Section Title Page Section Title Page

1. DISASSEMBLY

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

1-2. A Board (C BLOCK) Removal ......................... 1-2

1-3. A Board Removal .............................................. 1-3

1-4. Bezel Assembly, H1 Board Removal ............... 1-4

1-5. D Board Removal .............................................. 1-5

1-6. Service Position .................................................. 1-6

1-7. Picture Tube Removal........................................ 1-7

1-8. Harness Location ............................................... 1-9

2. SAFETY RELATED ADJUSTMENT............. 2-1

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

4. DIAGRAMS

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

4-2. Frame Schematic Diagram ................................. 4-4

4-3. Circuit Boards Location ..................................... 4-5

4-4. Schematic Diagrams and Printed Wiring

Boards ................................................................. 4-6

(1) Schematic Diagram of A Board ........................ 4-8

(3) Schematic Diagram of DA Board ..................... 4-14

(4) Schematic Diagram of H1 Board ....................... 4-16

(5) Schematic Diagram of N Board 4-18

4-5. Semiconductors ................................................. 4-20

5. EXPLODED VIEWS

5-1. Chassis ............................................................... 5-2

5-2. Picture Tube ...................................................... 5-3

5-3. Packing Materials ............................................... 5-4

6. ELECTRICAL PARTS LIST ............................ 6-1

(2) Schematic Diagrams of

D (a, b, c) Board ........................................ 4-10

........................

CPD-E430 (E) 1-1

SECTION 1

DISASSEMBLY

1-1. CABINET REMOVAL

Two screws

(+BVTP 4 x 16)

Slide the EMI shield in the direction

of arrow Cand remove four claws.

EMI shield

Two screws

(+BVTT 3 x 8)

Six screws

(+BVTT 4 x 8)

Two claws

Push the upper side of the cabinet

inthe direction of arrow A, disconnect claws

then remove the cabinet

lifting it up in the direction of arrow B.

Bezel assembly Bezel assembly

EMI shield

Cabinet Cabinet

Push in the tip of a screwdriver

about 10mm to unlock the claw.

CPD-E430 (E) 1-2

1-2. A BOARD (C BLOCK) REMOVAL

A board

CN315

CN318

GND

CPD-E430 (E) 1-3

1-3. A BOARD REMOVAL

Two screws

(+BVTT 4 x 8)

Video block assembly

Four screws

(+BVTT 3 x 8)

Screw

(+BVTP 3 X 10)

Video case

CN315

CN313

CN304

CN604

CN1102

A board

GND

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