Samsung CB5038V5X/XST User manual

COLOR TELEVISION RECEIVER

Chassis : S15A

Model : CB5038V5X/XST

CB5073T0X/XEC

CB5073V5X/XST

CB5079T0X/XEC

COLOR TELEVISION RECEIVER CONTENTS

Precautions

Reference Information

Specifications

Alignment and Adjustments

Troubleshooting

Exploded Views and Parts List

Electrical Parts List

Block Diagrams

Wiring Diagram

Schematic Diagrams

10.

ELECTRONICS

©Samsung Electronics Co., Ltd. MAY .2001

Printed in Korea

3S15ASEH-5001

Specifications and IC Data

Samsung Electronics 2-1

2. Specifications and IC Data

2-1 Specifications

Television System:

Channels:

Intermediate Frequencies (MHz) :

Picture Tube:

Power Requirements:

Antenna Input Impedance:

Speaker Impedance

NTSC - M

2 - 13

14-69

NTSC - M

38.90

34.40

35.32

PAL/SECAM-

B/G,I

2 - 12

21 - 69

PAL/

SECAM- B/G

38.90

33.40

34.47

System

Band

VHF

UHF

SYSTEM

IF Carrier Frequency

Picture IF Carrier

Sound IF Carrier

Color Sub Carrier

PAL,

SECAM- D/K

1 - 13

21 - 69

PAL/SECAM-D/K,

SECAM-K1

38.90

32.40

34.47

SECAM-K1,

PAL-D

2 - 9

13 - 57

PAL - I

38.90

32.90

34.47

MODEL

CII

14 Inch

20 Inch

21 Inch

AC 100~260V, 50/60Hz

VHF, UHF : Telescopic dipole antenna (75 ohm unbalanced type )

8 ohm, 5W+5W (Dual Type)

16 ohm, 3W (Monitor Type & Dual Type)

SYSTEM

PAL-I (UHF)

PAL-I (VHF/UHF)

PAL-B/G, SECAM-B/G

PAL-B/G, D/K, SECAM-B/G, D/K

PAL-B/G, D/K, SECAM-B/G, D/K, NT 4.43

PAL-B/G, D/K, SECAM-B/G, D/K, NT4.43, NT3.58

A34KQV42X

A48KRD82X(H)

A51KQJ63X

Quick start, in-line-gun,

Black stripe, 90 degree deflection

2-2 IC Line Up

Specifications and IC Data

2-2 Samsung Electronics

Loc. No Specification Description Remark

HC101 PAP103 IF PRE-AMP

IC201 TDA8842 PAL/SECAM-B/G, D/K, NTSC

Philips

TDA8841 PAL-B/G, D/K, NTSC

IC301 TDA8356 VERTICAL OUTPUT

IC501 TDA6107Q RGB DRIVE AMP

IC601 TDA7056B SOUND-AMP (3W x 1CH or 3W x 2CH)

IC602 TDA7057AQ SOUND-AMP (5W x 2CH)

IC801 KA3S0680RF POWER IC (STR)

IC802 KA7630 CUSTOM REGULATOR (5V, 8V)

Table 2-1 IC Line-Up

SZM173EA W/O TTX, English/French/Arabian

SZM173EC W/O TTX, English/Chinese

SZM173ET W/O TTX, English/Thai

SZM173EW W/O TTX, English/German/French/Dutch/Italian/Spanish,

Swedish/Yugo/Greek/Croatian

SZM173EE W/O TTX,English/Romanian/Hungarian/Polish/Czech/Bulgarian

SZM173ER W/O TTX, English/Russian

SPM175EE TTX, West : English/German/French/Dutch/Italian/Spanish/Swedish

East : English/Czech/Croatian/Romanian/Hungarian/Polish

SZM173EV W/O TTX, English/Vietnamese/Indonesian/Malay

IC902 24C04/KS24C040 EEPROM

PC801 TCET1108 / LTV817B PHOTO COUPLER

SPM175ER TTX, English/Russian/Bulgarian

SPM175EP TTX, English/Iranian

SPM175EA TTX, English/French/Arabian

SPM175EG TTX, English/Greek/Yugo

Dual Type

Zilog

(Non TTX)

Philips

(TTX)

IC901

SZM173AR W/O TTX, English/Arabian

SPM175E TTX, English/French/Swiss

2-3 Semiconductor Base Diagrams

Specifications and IC Data

Samsung Electronics 2-3

ELECTROLYTIC-

CONDENSER IC

DIODE

TDA884X(Pin 56)

Z8933112PSC(Pin 42)

X24CO4P(Pin 8)

SAA5291(Pin 52)

TDA9859(Pin 32)

KS24C040(Pin 8)

IC TRANSISTOR

TDA8133

TDA8356

TDA6101Q

KA7630

TRANSISTOR

2SD1651

2SD1650

KSD5072

KSD5071

KSD1711

KSC5386

BCEE B C

KSC815-Y

KSA539-Y

BC548

KTC9014

UPC574J

KA33V

SAW-FILTER

E C B

KSR1012

KSR1010

KSR2010

KTD863-Y

K2971M

K7252M

Fig. 2-1 Semiconductor Base Diagrams

Disassembly and reassembly

Samsung Electronics 3-1

3. Disassembly and Reassembly

3-1 Back Cover Removal

1. After removing the screws, press the tension rib and pull the cabinet backwards.

2. To reassemble, press the tension rib (see diagram).

3-2 Main Board Removal

Disassembly and reassembly

3-2 Samsung Electronics

1. Separate the socket board from the CRT neck.

2. Remove the Anode Cap from the CRT.

3. Remove the main board by pulling it with both hands.

Warning: The FBT is charged with high voltage.

Before removing the Anode Cap, discharge the voltage

through one of the heat sinks on the main board.

3-3 Speaker Removal

Disassembly and reassembly

Samsung Electronics 3-3

1. Remove the speaker by

pressing the tension rib.

1. Remove the screws.

2. Remove the speaker by

pressing the tension rib.

Disassembly and reassembly

3-4 Samsung Electronics

3-4 CRT Removal

1. Spread a soft mat on the floor. Place the TV set face

down.

2. Remove the 4 nuts mounting the CRT to the front cabi-

net. Lift the CRT.

3. Caution: Because of the high vacuum and large surface

area of the picture tube, be careful while handling it: (1)

Always lift the picture tube by grasping it firmly around

the faceplate, (2) Never lift the tube by its neck. (3) Do

not scratch the picture tube or apply excessive pressure.

Fractures of the glass may cause an implosion.

Alignment and Adjustments

Samsung Electronics 4-1

4. Alignment and Adjustments

4-1 Preadjustment

4-1-1 Factory Mode

1. Do not attempt these adjustments in the Video

Mode.

2. The Factory Mode adjustments are necessary

when either the EEPROM (IC902) or the CRT

is replaced.

3. Do not tamper with the “Adjustment” screen

of the Factory Mode menu. This screen is

intended only for factory use.

4-1-2 When EEPROM (IC902) Is Replaced

1. When IC902 is replaced all adjustment data

revert to initial values. It is necessary to

re-program this data.

2. After IC902 is replaced, warm up the TV for

10 seconds.

4-1-3 When CRT Is Replaced

1. Make the following adjustments AFTER set-

ting up after setting up purity and conver-

gence :

White Balance

Sub-Brightness

Vertical Center

Vertical Size

Horizontal Size

Fail Safe (This adjustment must be the last

step).

2. If the EEPROM or CRT is replaced, set PVA to

45 (factory mode) and set SC as follows.

14, 16 inch : 0

20 inch : 10

21 inch : 12

4-2 Factory/Service Mode

4-2-1 Procedure for the “Adjustment” Mode

1. This mode uses the standard remote control.

The Service Mode is activated by entering the

following remote-control sequence :

(1) SLEEP→FACTORY.

(2) STAND-BY→ DISPLAY→P.STD→MUTE

→POWER ON.

2. The “SERVICE (FACTORY)” message will be

displayed. The Service Mode has four compo-

nents: Adjustment, Test Pattern, Option Bytes

and Reset.

3. Access the Adjustment Mode by pressing the

“VOLUME” keys ( Up or Down). The adjust-

ment parameters are listed in the accompany-

ing table, and selected by pressing the CHAN-

NEL keys (▲ ,▼).

4. Selection sequences for the all system:

DOWN or UP key:

AGC>VCO>SBT>SCT>SCR>SC>RG>GG>

BG>CDL>BLU>PSL>PVS>PVA>PHS>NSR>

STT

5. The VOLUME keys increase or decrease the

adjustment values (stored in the

non-volatile memory) when Adjustment Mode

is cancelled.

6. Cancel the Adjustment Mode by re-pressing

the “FACTORY” or “Power OFF” keys.

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