Samsung SP47W3HFX/XEG Bedienungsanleitung

PROJECTION TV RECEIVER

Chassis : J52A(REV.4)

Model: SP47W3HFX/XEG

SP55W3HFX/SMA

SP55W3HFX/ELE

SP55W3HFX/XHK

PROJECTION TV RECEIVER CONTENTS

Precautions

Reference Information

Specifications

Alignment and Adjustments

Troubleshooting

Exploded View and Parts List

Electric Parts List

Block Diagrams

Wiring Diagram

Schematic Diagrams

10.

ELECTRONICS

©Samsung Electronics Co., Ltd. Mar. 2002

Printed in Korea

AA82-00009A

1. Precautions

1-1 Safety Precautions

1. Be sure that all of the built-in protective

devices are replaced. Restore any missing

protective shields.

2. When reinstalling the chassis and its

assemblies, be sure to restore all protective

devices, including: nonmetallic control knobs

and compartment covers.

3. Make sure that there are no cabinet openings

through which people—particularly

children—might insert fingers and contact

dangerous voltages. Such openings include

the spacing between the picture tube and the

cabinet mask, excessively wide cabinet

ventilation slots, and improperly fitted back

covers.

If the measured resistance is less than 1.0

megohm or greater than 5.2 megohms, an

abnormality exists that must be corrected

before the unit is returned to the customer.

4. Leakage Current Hot Check (Figure 1-1):

Warning: Do not use an isolation

transformer during this test. Use a leakage-

current tester or a metering system that

complies with American National Standards

Institute (ANIS C101.1, Leakage Current for

Appliances), and Underwriters Laboratories

(UL Publication UL1410, 59.7).

5. With the unit completely reassembled, plug

the AC line cord directly into the power

outlet. With the unit’s AC switch first in the

ON position and then OFF, measure the

current between a known earth ground (metal

water pipe, conduit, etc.) and all exposed

metal parts, including: antennas, handle

brackets, metal cabinets, screwheads and

control shafts. The current measured should

not exceed 0.5 milliamp. Reverse the power-

plug prongs in the AC outlet and repeat the

test.

Fig. 1-1 AC Leakage Test

6. Antenna Cold Check:

With the unit’s AC plug disconnected from the

AC source, connect an electrical jumper across

the two AC prongs. Connect one lead of the

ohmmeter to an AC prong. Connect the other

lead to the coaxial connector.

7. X-ray Limits:

The picture tube is especially designed to pro-

hibit X-ray emissions. To ensure continued

X-ray protection, replace the picture tube only

with one that is the same type as the original.

Carefully reinstall the picture tube shields and

mounting hardware; these also provide X-ray

protection.

8. High Voltage Limits:

High voltage must be measured each time ser-

vicing is done on the B+, horizontal deflection

or high voltage circuits. Correct operation of

the X-ray protection circuits must be

reconfirmed whenever they are serviced.

(X-ray protection circuits also may be called

“horizontal disable” or “hold-down”.)

Heed the high voltage limits. These include

the X–ray Protection Specifications Label, and

the Product Safety and X-ray Warning Note on

the service data schematic.

Precautions

Samsung Electronics 1-1

LEAKAGE

CURRENT

TESTER

DEVICE

UNDER

TEST

TEST ALL

EXPOSED METAL

SURFACES

2-WIRE CORD

ALSO TEST WITH

PLUG REVERSED

(USING AC ADAPTER

PLUG AS REQUIRED) EARTH

GROUND

(READING SHOULD

NOT BE ABOVE

0.5mA)

Follow these safety, servicing and ESD precautions to prevent damage and protect against potential

hazards such as electrical shock and X-rays.

1-1 Safety Precautions (Continued)

9. High voltage is maintained within specified

limits by close-tolerance, safety-related

components and adjustments. If the high

voltage exceeds the specified limits, check

each of the special components.

10. Design Alteration Warning:

Never alter or add to the mechanical or

electrical design of this unit. Example: Do not

add auxiliary audio or video connectors. Such

alterations might create a safety hazard. Also,

any design changes or additions will void the

manufacturer’s warranty.

11. Hot Chassis Warning:

Some TV receiver chassis are electrically

connected directly to one conductor of the AC

power cord. If an isolation transformer is not

used, these units may be safely serviced only

if the AC power plug is inserted so that the

chassis is connected to the ground side of the

AC source.

To confirm that the AC power plug is inserted

correctly, do the following: Using an AC

voltmeter, measure the voltage between the

chassis and a known earth ground. If the

reading is greater than 1.0V, remove the AC

power plug, reverse its polarity and reinsert.

Re-measure the voltage between the chassis

and ground.

12. Some TV chassis are designed to operate with

85 volts AC between chassis and ground,

regardless of the AC plug polarity. These units

can be safely serviced only if an isolation

transformer inserted between the receiver and

the power source.

13. Some TV chassis have a secondary ground

system in addition to the main chassis ground.

This secondary ground system is not

isolated from the AC power line. The two

ground systems are electrically separated by

insulating material that must not be defeated

or altered.

14. Components, parts and wiring that appear to

have overheated or that are otherwise

damaged should be replaced with parts that

meet the original specifications. Always

determine the cause of damage or overheat-

ing, and correct any potential hazards.

15. Observe the original lead dress, especially

near the following areas: Antenna wiring,

sharp edges, and especially the AC and high

voltage power supplies. Always inspect for

pinched, out-of-place, or frayed wiring. Do

not change the spacing between components

and the printed circuit board. Check the AC

power cord for damage. Make sure that leads

and components do not touch thermally hot

parts.

16. Picture Tube Implosion Warning:

The picture tube in this receiver employs

“integral implosion” protection. To ensure

continued implosion protection, make sure

that the replacement picture tube is the same

as the original.

17. Do not remove, install or handle the picture

tube without first putting on shatterproof

goggles equipped with side shields. Never

handle the picture tube by its neck. Some

“in-line” picture tubes are equipped with a

permanently attached deflection yoke; do not

try to remove such “permanently attached”

yokes from the picture tube.

18. Product Safety Notice:

Some electrical and mechanical parts have

special safety-related characteristics which

might not be obvious from visual inspection.

These safety features and the protection they

give might be lost if the replacement compo-

nent differs from the original—even if the

replacement is rated for higher voltage,

wattage, etc.

Components that are critical for safety are

indicated in the circuit diagram by shading,

( ) or ( ).

Use replacement components that have the

same ratings, especially for flame resistance

and dielectric strength specifications.

A replacement part that does not have the

same safety characteristics as the original

might create shock, fire or other hazards.

Precautions

1-2 Samsung Electronics

1-2 Servicing Precautions

1. Servicing precautions are printed on the

cabinet. Follow them.

2. Always unplug the unit’s AC power cord from

the AC power source before attempting to: (a)

Remove or reinstall any component or

assembly, (b) Disconnect an electrical plug or

connector, (c) Connect a test component in

parallel with an electrolytic capacitor.

3. Some components are raised above the printed

circuit board for safety. An insulation tube or

tape is sometimes used. The internal wiring is

sometimes clamped to prevent contact with

thermally hot components. Reinstall all such

elements to their original position.

4. After servicing, always check that the screws,

components and wiring have been correctly

reinstalled. Make sure that the portion around

the serviced part has not been damaged.

5. Check the insulation between the blades of the

AC plug and accessible conductive parts

(examples: metal panels, input terminals and

earphone jacks).

6. Insulation Checking Procedure: Disconnect the

power cord from the AC source and turn the

power switch ON. Connect an insulation

resistance meter (500V) to the blades of the AC

plug.

The insulation resistance between each blade

of the AC plug and accessible conductive parts

(see above) should be greater than 1 megohm.

7. Never defeat any of the B+ voltage interlocks.

Do not apply AC power to the unit (or any of

its assemblies) unless all solid-state heat sinks

are correctly installed.

8. Always connect a test instrument’s ground

lead to the instrument chassis ground before

connecting the positive lead; always remove

the instrument’s ground lead last.

9. When some parts inside the optical engine

(except lamp) are damaged, replace the whole

optical engine.

Precautions

Samsung Electronics 1-3

Warning 1 : First read the “Safety Precautions” section of this manual. If some unforeseen circumstance creates a

conflict between the servicing and safety precautions, always follow the safety precautions.

Warning 2 : An electrolytic capacitor installed with the wrong polarity might explode.

“CAUTION : Double-pole/neutral fusing”

1-3 Precautions for Electrostatically Sensitive Devices (ESDs)

1. Some semiconductor (“solid state”) devices

are easily damaged by static electricity. Such

components are called Electrostatically

Sensitive Devices (ESDs); examples include

integrated circuits and some field-effect

transistors. The following techniques will

reduce the occurrence of component damage

caused by static electricity.

2. Immediately before handling any semicon

ductor components or assemblies, drain the

electrostatic charge from your body by

touching a known earth ground. Alternatively,

wear a discharging wrist-strap device. (Be

sure to remove it prior to applying power—

this is an electric shock precaution.)

3. After removing an ESD-equipped assembly,

place it on a conductive surface such as

aluminum foil to prevent accumulation of

electrostatic charge.

4. Do not use freon-propelled chemicals. These

can generate electrical charges that damage

ESDs.

5. Use only a grounded-tip soldering iron when

soldering or unsoldering ESDs.

6. Use only an anti-static solder removal device.

Many solder removal devices are not rated as

“anti-static”; these can accumulate sufficient

electrical charge to damage ESDs.

7. Do not remove a replacement ESD from its

protective package until you are ready to

install it. Most replacement ESDs are

packaged with leads that are electrically

shorted together by conductive foam,

aluminum foil or other conductive materials.

8. Immediately before removing the protective

material from the leads of a replacement ESD,

touch the protective material to the chassis or

circuit assembly into which the device will be

installed.

9. Minimize body motions when handling

unpackaged replacement ESDs. Motions such

as brushing clothes together, or lifting a foot

from a carpeted floor can generate enough

static electricity to damage an ESD.

Precautions

1-4 Samsung Electronics

Reference Information

Samsung Electronics 2-1

2. Reference Information

2-1 Tables of Abbreviations and Acronyms

dBm

°C

°F

°K

GHz

ips

kWh

kHz

kΩ

km/h

kVA

MHz

Ampere

Ampere-hour

Angstrom

Decibel

Decibel Referenced to One

Milliwatt

Degree Celsius

Degree Fahrenheit

degree Kelvin

Farad

Gauss

Gigahertz

Gram

Henry

Hertz

Hour

Inches Per Second

Kilowatt-hour

Kilogram

Kilohertz

Kilohm

Kilometer

Kilometer Per Hour

Kilovolt

Kilovolt-ampere

Kilowatt

Liter

Megahertz

MΩ

µA

µF

µH

µm

µs

µW

Ω

rpm

rps

Megavolt

Megawatt

Megohm

Meter

Microampere

Microfarad

Microhenry

Micrometer

Microsecond

Microwatt

Milliampere

Milligram

Millihenry

Milliliter

Millimeter

Millisecond

Millivolt

Nanofarad

Ohm

Picofarad

Pound

Revolutions Per Minute

Revolutions Per Second

Second (Time)

Volt

Volt-ampere

Watt

Watt-hour

Table 2-1 Abbreviations

Reference Information

2-2 Samsung Electronics

Table 2-2 Table of Acronyms

ABL

ACC

AFC

AFT

AGC

ANSI

APC

A/V

AVC

BAL

BPF

B-Y

CATV

CCD

CCTV

CRT

DVM

EIA

ESD

FBP

FBT

GND

G-Y

HI-FI

Automatic Brightness Limiter

Alternating Current

Automatic Chroma Control

Audio Frequency

Automatic Frequency Control

Automatic Fine Tuning

Automatic Gain Control

Amplitude Modulation

American National Standards Institute

Automatic Phase Control

Automatic Picture Control

Audio-Video

Automatic Volume Control

Balance

Bandpass Filter

Blue-Y

Community Antenna Television (Cable TV)

Citizens Band

Charge Coupled Device

Closed Circuit Television

Channel

Cathode Ray Tube

Continuous Wave

Direct Current

Digital Volt Meter

Electronics Industries Association

Electrostatic Discharge

Electrostatically Sensitive Device

Feedback Pulse

Flyback Transformer

Flip-Flop

Frequency Modulation

Fail Safe

Ground

Green-Y

High

High-Frequency

High Fidelity

Inductance-Capacitance

Integrated Circuit

Intermediate Frequency

I/O

LED

MOSFET

MTS

NAB

NEC

NTSC

OSD

PCB

PLL

PWM

QIF

R-Y

SAP

SAW

SIF

SMPS

S/N

TTL

UHF

VCD

VCO

VCXO

VHF

VIF

VTR

VTVM

Input/output

Left

Low

Light Emitting Diode

Low Frequency

Metal-Oxide-Semiconductor-Field-Effect-Tr

Multi-channel Television Sound

National Association of Broadcasters

National Electric Code

National Television Systems Committee

On Screen Display

Printed Circuit Board

Phase-Locked Loop

Pulse Width Modulation

Quadrature Intermediate Frequency

Right

Resistor & Capacitor

Radio Frequency

Red-Y

Second Audio Program

Surface Acoustic Wave(Filter)

Sound Intermediate Frequency

Switching Mode Power Supply

Signal/Noise

Switch

Test Point

Transistor Transistor Logic

Television

Ultra High Frequency

Underwriters Laboratories

Ultraviolet

Variable-Capacitance Diode

Voltage Controlled Oscillator

Voltage Controlled Crystal Oscillator

Very High Frequency

Video Intermediate Frequency

Variable Resistor

Video Tape Recorder

Vacuum Tube Voltmeter

Transistor

IC101 SAA1300

IC655 TDA7265

ICS801 TNY253P

IC301 LA7845

IC471 TL494CN

ICZ103,104 STK392-040

IC431 MC4558C

IC703 PCF8574P

ICP706 PCF8574P(Option)

IC701,702 TDA6920X

IC705 TC4052BP

ICP705 TEA6422

ICP707 TEA5114A

ICP704 TDA8601

IC706 PCF8591P

IC901 Z9037116PS1

IC902 24C16

IC901 SDA30C264

IC902 27C040

IC903 8574

IC904 24C16

ICT01 SDA5275

ICT02 KM44C4004C

IC06 SDA9361

IC07 CXA2101AQ

IC01 VPC3230D-B2

IC02 SDP9400

IC03 SDS9280

Block NameNo. IC Location IC Name

Table 2 - 3 IC Line - Up

Reference Information

Samsung Electronics 2-3

2-2 IC Line Up

2-2-1 100Hz

MAIN

SUB

TERMINAL

MICOM

Double Window(D/W)

MODEL

MICOM

TTX

Reference Information

2-4 Samsung Electronics

Block NameNo. IC Location IC Name

Table 2 - 3 IC Line - Up (Continued)

Double Window(D/W)

Convergence

Sound

CRT

POWER

Sub AMP

Format Converter

PIC01 VPC3230D-B2

PIC02 MS81V04160

IC111,112 CD40668BCM

IC109,110 74HC4066

IC102 74HC4046

IC106,107,108 TL072

IC105 EL2210CS

IC103 TSC87251G2D

IC101 SDC91

IC104 AT82C64

ICD601 MSP3452G-A1

*ICD601 MSP3450G-B6

ICD602,603 TL062

IC501,531,561 TDA6111Q

IC801S STRF6656

IC802 SVD001(OPTION)

IC804 SE11ON

ICS601 TDA 7265

(DOLBLY, SULLOON,OPTION)

IC01 FS401S

IC02 416S11/20

IC03 Z9021106PSC

IC04 24C02

(PC,INPUT,OPTION)

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