Samsung CT-20F3 FNT XAP Schematic

Precautions

Specifications and IC Data

Disassembly and Reassembly

Alignment and Adjustments

Troubleshooting

Exploded View and Parts List

Electrical Part List

Block Diagram

Wiring Diagram

Schematic Diagrams

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

COLOR TELEVISION RECEIVER

Chassis : K15D(N) Model : CT20F3FNT/XAP

SERVICE

Manual

COLOR TELEVISION RECEIVER CONTENTS

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 leakagecurrent 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 powerplug 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 prohibit 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 servicing 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

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 overheating, 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 component 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.

Precautions

1-3

Warning1: 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.

Warning2: An electrolytic capacitor installed with the wrong polarity might explode.

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

1-3 Precautions for Electrostatically Sensitive Devices (ESDs)

CAUTION

These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

Samsung Electronics 2-1

Specifications and IC Data

2. Specifications and IC Data

2-1 Specifications

Television System:

Channels:

Intermediate Frequencies (MHz) :

MODEL

CT

System

Band

VHF

UHF

CABLE

SYSTEM

IF Carrier Frequency

Picture IF Carrier

SYSTEM

NTSC ONLY

NTSC

2 - 13

14 - 69

1 - 125

NTSC

45.75

Picture Tube:

Power Requirements:

Antenna Input Impedance:

Speaker Impedance

Sound IF Carrier

Color Sub Carrier

14 Inch

15 Inch

20 Inch

21 Inch

AC 120V, 60Hz

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

8 ohm

A34KQV42X

A36QDT351X

A48KRD82X

A51KQJ63X

14Inch

15Inch Flat

20Inch

21Inch

41.25

42.18

2-2 Samsung Electronics

2-2 IC Line Up

Specifications and IC Data

Table 2-1 IC Line-Up

Loc. No Specificatio Description Remark

IC201S

IC301

IC501 TDA6107Q RGB DRIVE AMP

IC602

IC801S

IC802 KA7632

IC202 24C04 EEPROM

PC801S TCET1108 / LTV817B PHOTO COUPLER

ICS601 UPC1851B

SPM458AN

LA7840

TDA7266M/TDA7266S SOUND-AMP,

KA5Q0740RT

(0765RT)

TDA9377, English/Spanish/French

VERTICAL OUTPUT

POWER IC (STR)

CUSTOM REGULATOR (5V, 8V, 3.3V)

Sound Processor (STEREO)

TDA7266M (MONO) TDA7266S (STEREO)

Philips

Sanyo

Philips

FIAIR CHILD

SEC

NEC

2-3 Semiconductor Base Diagrams

Specifications and IC Data

Samsung Electronics 2-3

Fig. 2-1 Semiconductor Base Diagrams

ELECTROLYTICCONDENSER

DIODE

IC

SPM458AN(Pin 64) U4468B(Pin 16) UPC851B(Pin 42)

TRANSISTOR

B

C

E

IC

KSC5802

TRANSISTOR

E B C

LA7840 TDA6107Q KA7632

KSC815-Y KSA539-Y

1

TRANSISTOR

SAW-FILTER

1

KSC2331-Y

M1864M

E C B

Samsung Electronics 6-1

Exploded View & Parts List

6. Exploded View & Parts List

6-1 CT20F3FNT/XAP

No. Code No. Description;Specification Q’ty Loc.No. S.N.A

1 AA64-03156A CABINET-FRONT;20F3(SAMEX),HIPS HB 1 T0003 1-1 AA64-70126A BADGE-BRAND;ALL,AL,T1.5,7.5,L45,R2000,SI 1 T0057 S.N.A 1-2 AA64-03008A KNOB-POWER;14F3,ABS,HB,G3676,SVM-3012 1 T0023 S.N.A 1-3 AA61-60003J SPRING ETC-CS;-,SUS304,-,-,OD6,N7,OD6,-, 1 CIS7 S.N.A 1-4 AA65-30105A CLAMPER CORE-WIRE;ALL MODEL,NYLON 66,V2, 1 CWFC S.N.A 1-5 AA61-40113A STOPPER-PCB;501H,HIPS,-,-,HB,NTR,- 1 T0607 S.N.A 1-6 AA65-30018A CLAMPER CORE-WIRE;DONG-A,NYLON-66,-,-,-, 1 CWIRE2 S.N.A 1-7 AA64-03012A WINDOW-RMC,LED;14F3,PC,CLR 1 T0299 S.N.A 1-8 6002-000512 SCREW-TAPPING;RH,+,2,M4,L12,ZPC(BLK),SWR 1 T0081 S.N.A 1-9 AA64-03007A KNOB-CONTROL;14F3,ABS,HB,G3676,SVM-3012 1 T0022 S.N.A 1-10 6002-000512 SCREW-TAPPING;RH,+,2,M4,L12,ZPC(BLK),SWR 1 T0081 S.N.A 1-11 AA96-10007A ASSY SPEAKER;-,8ohm,3W,O5F14BRA,-,L300 1 T0522 S.N.A 1-12 6002-000512 SCREW-TAPPING;RH,+,2,M4,L12,ZPC(BLK),SWR 4 T0081 S.N.A

2 AA03-00246A CRT COLOR;A48KRD82X(H),380MG,2.20MH,30.0 1 T0063 2-1 AA61-00734A HOLDER;25POLYVINYL,DEGAUSSING,T0.5,CHLO 2 CDCOIL S.N.A 2-2 AA60-10050R SCREW-MACHINE;-,SWRCH18A,M5,L31.5,HH,+,W 4 CCM1 S.N.A 2-3 3704-001105 SOCKET-CRT;11P,20PI,26.5PI,NI,- 1 V999S

3 AA64-03157A CABINET-BACK;20F3(SAMEX),HIPS HB 1 T0015 3-1 6003-001026 SCREW-TAPTITE;RH,+,B,M4,L15,ZPC(BLK),SWR 4 T0081 S.N.A

4 AA96-20129C ASSY POWER CORD;-,EP2/YES,H/C200,ME301P, 1 T0066 S.N.A 5 AA59-00232A REMOCON;CT20R1,SAMSUNG,BLK,TM59,25,NTSC 1 T0074

Yon can search for the updated part code through ITSELF web site. URL:http://itself.sec.samsung.co.kr

5

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).

Disassembly and reassembly

3-2 Samsung Electronics

3-2 Main Board Removal

3-3 Speaker Removal

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.

1. Remove the speaker by pressing the tension rib.

Disassembly and reassembly

Samsung Electronics 3-3

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 cabinet. 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 setting up after setting up purity and convergence :

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 and set SC as 20(factory mode).

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) DISPLAY → FACTORY. (2) STAND-BY → MUTE → 1 → 8 → 2

→POWER ON.

2. The “SERVICE (FACTORY)” message will be displayed. The Service Mode has four components: ADJUST, OPTION , G2-ADJUST and RESET.

3. Access the Adjustment Mode by pressing the “VOLUME” keys ( Up or Down). The adjustment parameters are listed in the accompanying table, and selected by pressing the CHANNEL keys ( , ).

4. Selection sequences for the all system:

DOWN or UP key:

SCT>SBT>BLR>BLB>RG>GG>BG>VSL>VS> VA>HS>SC>CDL>STT>AKB>FS>NDL> LBS>NSR>SCBT>VOL>CAP>HBS>RP00> RP01>FMWS>AGC1>OMD>SCL>PWL> MUS>AGC>DSK>DVDB

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.

4-2-2 Main Adjustment Parameter

Alignment and Adjustments

4-2 Samsung Electronics

OSDNO FUNCTION RANGE INITAL DATA

1

SCT Sub Contras t 0 ~ 23

2

SBT Sub Bright ness

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

SCBT Screen Brighrtness 0 ~ 63

20

21

22

23

RP00

24

RP01

25

FMWS

26

AGC1

27

OMD

28

29

30

31

32

33

34

Black Level offset Red

BLR

Black Level offset Blue

BLB

RG Red Ga in 0 ~ 6 3

GG Green Gain 0 ~ 63

BG Blue Gai n 0 ~ 6 3

VSL Vert ical Slope 0 ~ 63

VS Vert ical Shi f t 0 ~ 63

VA Vert ical Amplitude 0 ~ 63

HS Horizontal Shif t 0 ~ 63

SC S- Cor r ec t i on 0 ~ 6 3

CDL Cat hode Drive Level 0 ~ 15

STT Sub Tint 0 ~ 7

AKBFSAKB On / off 0 ~ 1

Filter Seting

NDL NTSC Delay 0 ~ 15

Low Band Separation Set

LBS

NSR NTSC Sub color 0 ~ 23

VOL Volume pre s et t i ng 0 ~ 63

CAP Caption Position

HBS

High Band Separation Set

Ratio Pre / overshoot

Window Selection Sound PLL

IF AGC Speed

Offset IF Demodulator

SCL

Soft Clipping Level

PWL

Peak White Limitting

MUS

Matrix USA

AGC

Automatic Gain Control

DSK

Dynamic Skin Tone

DVDB

DVD Bright Offset

0~23

0~63

0~15

0~63

0~15

0~63

0~1

0~3

0~63

0~3

0~15

0~1

0~63

0~1

00~1

SETTING

19V 13V

15

8

35

32

40

30

42

30

31

20

32

35

11

3

0

32

1

32

3

35

10

12

32

1

0

1

32

3

15

0

33

0

5

13

9

31

27

32

25

31

40

30

20

11

7

0

37

1

32

3

45

10

12

32

1

0

1

32

1

13

0

33

0

4

13

9

31

27

32

25

31

20

30

12

7

0

37

1

32

3

45

10

12

32

1

0

1

32

1

13

0

33

0

4

REMARK

W/B (HIGH Y)

W/B A (LOW Y)

W/B (LOW X, Y)

W/B (HIGH X, Y)

FIX

W/B (HIGH X, Y)

Vertical SLOPE

FIX

Vertical SIZE

Horizontal SHIFT

FIX

FIX(STEREO)

FIX

FIX(STEREO)

FIX

FIX(STEREO)

FIX

FIX (Mono)

FIX (Nomal)

FIX (No Crrection)

FIX (Off)

FIX (100%)

FIX (Mono)

FIX

Alignment and Adjustments

Samsung Electronics 4-3

4-2-3 Option Bytes

In the Service Mode, various can be selected via the Option Table. Example:

Option Table : xx xx

OSD

1

2

3

4

5

6

VIDEO MUTE

(When swiching channel)

AUDIO

TURBO

ZOOM

AUTO POWER ON

SOUND MUTE

(NO SIGNAL)

SETTING

ON

OFF

STEREO

LINE STEREO

MONO

ON

OFF

ZOOM

NOMAL

ON

OFF

ON

REMARK

- 800msec Mute Time(Tri-norma)

- Unavailable

- Zenith stereo (WITH IN UPC1851B)

- Line stereo (WITH IN UPC1851B)

- Mono (WITH OUT UPC1851B)

- Stereo/L STEREO Model

- Mono Model

- Nornal / Zoom

- Nomal

- The power is switched on automatically when detaching the Master S/W Auto On

- Tact S/W Model

- Unavailable

- Available

ENGLISH

7

8

9

10

11

12

13

LANGUAGE

HOTEL MODE

CATV

X-RAY

V-CHIP

AV Option

DEMO

ESPANOL

FRENCH/PORTU

OFF

ON

AIR/STD/HRC/IRC

AIR/STD/HRC/AFN

ON

OFF

ON

OFF

TV ↔ AV

TV ↔ AV ↔ DVD

ON

OFF

- Start Language Select

- Unavailable

- Available

- U.S Army

- Available (U.S.A, Army)

- Unavailable (South America)

- Available (U.S.A)

- Unavailable (Canada)

- Available (South America)

- Unavailable (U.S.A)

Alignment and Adjustments

4-4 Samsung Electronics

4-3 Other Adjustments

4-3-1 General

1. Usually, a color TV needs only slight touchup adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync and focus.

2. The picture should have good black and white details. There should be no objectionable color shading; if color shading is present, perform the purity and convergence adjustments described below.

3. Use the specified test equipment or its equivalent.

4. Correct impedance matching is essential.

5. Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV. When inserting signal markers, do not allow the marker generator to distort test results.

6. Connect the TV only to an AC power source with voltage and frequency as specified on the backcover nameplate.

7. Do not attempt to connect or disconnect any wires while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts.

8. To protect against shock hazard, use an isolation transformer.

4-3-2 Automatic Degaussing

A degaussing coil is mounted around the picture tube, so that external degaussing after moving the TV should be unnecessary. But the receiver must be properly degaussed upon installation.

The degaussing coil operates for about 1 second after the power is switched ON. If the set has been moved or turned in a different direction, disconnect its AC power for at least 30 minutes.

If the chassis or parts of the cabinet become magnetized, poor color purity will result. If this happens, use an external degaussing coil. Slowly move the degaussing coil around the faceplate of the picture tube and the sides and front of the receiver. Slowly withdraw the coil to a distance of about 6 feet before removing power.

Alignment and Adjustments

Samsung Electronics 4-5

4-3-3 High Voltage Check

CAUTION: There is no high voltage adjustment on this chassis. The B+ power supply must be set to +122.5 volts (Full color bar input and normal picture level).

1. Connect a digital voltmeter to the second

anode of the picture tube.

2. Turn on the TV. Set the Brightness and

Contrast controls to minimum (zero beam current).

3. The high voltage should not exceed 30KV.

4. Adjust the Brightness and contrast controls to

both extremes. Ensure that the high voltage does not exceed 30KV under any conditions.

4-3-4 FOCUS Adjustment

1. Input a black and white signal.

2. Adjust the tuning control for the clearest pic-

ture.

3. Adjust the FOCUS control for well defined

scanning lines in the center area of the screen.

4-3-5 Cathode Voltage Adjustment

(Screen Adjustment)

1. Connect CRT socket pin GK to an oscilloscope

probe.

2. Input a gray scale pattern. (Use a pattern gen-

erator, PM5518)

3. Use the P mode key (on the remote control)

for the STANDARD picture.

4. Adjust the Screen VR (on the FBT) so that the

voltage on the oscilloscope becomes 125+2.5V (See Fig. 4-1).

4-3-6 Purity Adjustment

1. Warm up the receiver for at least 20 minutes.

2. Plug in the CRT deflection yoke and tighten the clamp screw.

3. Plug the convergence yoke into the CRT and set in as shown in Fig. 4-2.

4. Input a black and white signal.

5. Fully demagnetize the receiver by applying an external degaussing coil.

6. Turn the CONTRAST and BRIGHTNESS controls to maximum.

7. Loosen the clamp screw holding the yoke. Slide the yoke backward or forward to provide vertical green belt. (Fig. 4-3).

8. Tighten the convergence yoke.

9. Slowly move the deflection yoke forward, and adjust for the best overall green screen.

10. Temporarily tighten the deflection yoke.

11. Produce blue and red rasters by adjusting the low-light controls. Check for good purity in each field.

12. Tighten the deflection yoke.

Fig. 4-1

_

+

125 2.5V

GND

Alignment and Adjustments

4-6 Samsung Electronics

4-3-7 White Balance Adjustment

Fig. 4-2 Convergence Magnet Assembly

Fig. 4-3 Center Convergence Adjustment

Fig. 4-4

(a) Set up

1. Warm up the TV for at least 30 minutes in the Aging Mode (OSD White). This mode is displayed by entering the following sequence:

DISPLAY

→FACTORY →FACTORY

2. Input a Toshiba pattern.

(b) Low-Light Adjustment

1. Set SBT to 1.2 fL in the Factory Service Mode with using CA100. See Fig. 4-4.

2. Adjust RG,BG so that the levels are suitable to each local area.

(c) High-Light Adjustment

1. Set SCT to 50FL(13V : 60FL) in the Factory Service Mode with using CA100. See Fig. 4-4 .

Clamper

6 Pole Magnet

Screw

4 Pole Magnet

2 Pole Magnet

2 POLE PURITY

4 POLE CONVERGENCE

Vertical Green Belt

YOKE CLAMP SCREW

6 POLE CONVERGENCE

ADJU (VERT

31m/m

1

2

Alignment and Adjustments

Samsung Electronics 4-7

4-3-8 Center Convergence Adjustment

1. Warm up the receiver for at least 20 minutes.

2. Adjust the two tabs of the 4 pole magnets to change the angle between them. Superimpose the red and blue vertical lines in the center area of the screen.

3. Adjust the Brightness and Contrast controls for a well defined picture.

4. Adjust the two-tab pairs of the 4 pole magnets, and change the angle between them. Superimpose the red and the blue vertical lines in the center area of the screen.

5. Turn the both tabs at the same time, keeping the angle constant, and superimpose the red and blue horizontal line in the center of the screen.

6. Adjust the two-tab pairs of the 6-pole magnets to superimpose the red and blue line onto the green. (Changing the angle affects the vertical lines, and rotating both magnets affects the horizontal lines.)

7. Repeat adjustments 2~6, if necessary.

8. Since the 4-pole magnets and 6-pole magnets

interact, the dot movement is complex (Fig. 4-5).

Fig. 4-5 Center Convergence Adjustment

BLUE

RED

RED/BLUE

GREEN

4-Pole Magnet Movement

6-Pole Magnet Movement

4-3-9 RF AGC Adjustment

Set the AGC data to 33 (Factory Mode).

4-3-10 Sub-Color Adjustment

Set NSR data to 3 (Factory Mode).

4-3-11 Geometry Adjustment

SC →VS→VA→VSL→HS

1. Input a lion head pattern.

2. Set the SC (S-Correction) as 20(13V : 12) and VS(Vertical Shift) 31 so that the lion head circle becomes oval.

3. Adjust with VA (Vertical Amplitude) so that the top margin of the picture is 4.

Fig. 4-7

4. Adjust with VSL (Vertical-Slope) so that the bottom margin of the picture is 4.

Fig. 4-8

5. Adjust with HS (Horizontal Shift) so that the lion-head pattern and CRT centers are aligned.

Fig. 4-9

6. Adjust HS (Horizontal Shift) so that the left and right margins of the picture are 5.

Alignment and Adjustments

4-8 Samsung Electronics

4

5

4

Electrical Parts List

Yon can search for the updated part code through ITSELF web site. URL:http://itself.sec.samsung.co.kr

7. Electrical Parts List

7-1

CT20F3FNT/XAP

Level Loc.No. Code No. Description;Specification Remark Level Loc.No. Code No. Description;Specification Remark

ASSY COVER FRONT

1 M0001 AA90-04320B ASSY COVER FRONT;CT20F3FX/XAX S.N.A ..2 T0081 6002-000512 SCREW-TAPPING;RH,+,2,M4,L12,ZPC(BLK),SWR S.N.A

..2 CCM1 AA60-10050R SCREW-MACHINE;-,SWRCH18A,M5,L31.5,HH,+,W S.N.A ..2 T0607 AA61-40113A STOPPER-PCB;501H,HIPS,-,-,HB,NTR,- S.N.A ..2 T0003 AA64-03156A CABINET-FRONT;20F3(SAMEX),HIPS HB ...3 T0081 6002-000512 SCREW-TAPPING;RH,+,2,M4,L12,ZPC(BLK),SWR S.N.A ...3 T0081 6002-000512 SCREW-TAPPING;RH,+,2,M4,L12,ZPC(BLK),SWR S.N.A ...3 CIS7 AA61-60003J SPRING ETC-CS;-,SUS304,-,-,OD6,N7,OD6,-, S.N.A ...3 T0299 AA64-03012A WINDOW-RMC,LED;14F3,PC,CLR S.N.A ...3 T0022 AA64-03007A KNOB-CONTROL;14F3,ABS,HB,G3676,SVM-3012 S.N.A ...3 T0023 AA64-03008A KNOB-POWER;14F3,ABS,HB,G3676,SVM-3012 S.N.A ..2 T0057 AA64-70126A BADGE-BRAND;ALL,AL,T1.5,7.5,L45,R2000,SI S.N.A ..2 CWIRE2 AA65-30018A CLAMPER CORE-WIRE;DONG-A,NYLON-66,-,-,-, S.N.A ..2 CWFC AA65-30105A CLAMPER CORE-WIRE;ALL MODEL,NYLON 66,V2, S.N.A ..2 T0522 AA96-10007A ASSY SPEAKER;-,8ohm,3W,O5F14BRA,-,L300 S.N.A ...3 T0082 3001-001037 SPEAKER;5W,8OHM,89DB,180HZ ...3 T0245 AA39-20500G LEAD CONNECTOR-ASSY;,3(2)P,300MM,67096-0

ASSY COVER REAR

1 M0002 AA90-04321B ASSY COVER REAR;CT20F3FX/XAX S.N.A ..2 T0081 6003-001026 SCREW-TAPTITE;RH,+,B,M4,L15,ZPC(BLK),SWR S.N.A

..2 T0015 AA64-03157A CABINET-BACK;20F3(SAMEX),HIPS HB ..2 T0214 AA65-30008A CLAMPER CORE-CORD;-,PE,HB,-,BLK,- S.N.A ..2 H/T AA61-00356B HOLDER-TUNER,F/JACK;501F,ABS,-,-,-,BLK,H S.N.A ..2 T0069 AA60-00091J SPACER-FELT;-,FELT,330X10,-,-,BLK,T0.5,- S.N.A ..2 CLW/HS AA65-30018A CLAMPER CORE-WIRE;DONG-A,NYLON-66,-,-,-, S.N.A

ASSY CPT

1 T0521 AA91-06032A ASSY CPT;A48KRD82X(H)+380MG,NONAFTA,MALA S.N.A ..2 T0063 AA03-00246A CRT COLOR;A48KRD82X(H),380MG,2.20MH,30.0

..2 T0079 AA27-00002A MAGNET CONVERGENCE;JH291-SC-OB,29.1MM,-, ..2 T0078 AA27-00127A DEFLECTION YOKE;,DSE-1992LL,PCL,A48KRD82 ..2 T0089 AA27-00254A COIL DEGAUSSING;,20INCH,10%,70TS,4.5OHM, ..2 CDCOIL AA61-00734A HOLDER;25POLYVINYL,DEGAUSSING,T0.5,CHLO S.N.A ..2 SPACER AA63-60028A SPACER-DY;-,NEOPRENE,-,-,-,BLK,-,-,V0 W1 S.N.A ..2 A/TBC AA97-01678A ASSY TBC WIRE;,19,NTSC,1P,SAMEX S.N.A ..2 M0162 6502-001019 CABLE CLAMP;DAMC-10,ID9.9,T7.1,NYLON6.6, S.N.A

ASSY CHASSIS

1 M0017 AA91-07058A ASSY CHASSIS;K15D,20,MONO,CT20F3 S.N.A ..2 FBT AA65-30018A CLAMPER CORE-WIRE;DONG-A,NYLON-66,-,-,-, S.N.A

..2 M0014 AA94-14124A ASSY PCB MAIN;20,MONO,K15D,F/V,LATIN ...3 0202-001366 SOLDER-WIRE FLUX;-,RS60S,D1.2,63Sn/37Pb, S.N.A ...3 T0090 0502-001265 TR-POWER;FJAF6810D,NPN,60000mW,TO-3PF,ST ...3 IC112 1103-001209 IC-EEPROM;24C04,512x8,DIP,8P,10.16x7.11m ...3 C598 2201-000446 C-CERAMIC,DISC;3.3NF,20%,400V,Y5U,BK,15X ...3 CR401S 2303-001015 C-FILM,LEAD-PPF;5.5NF,5%,1.6KV,BK,29X9.5 ...3 SF101S 2904-001221 FILTER-SAW AV,45.75MHz,SIP5K,ST,14.2dB,M ...3 SWN01 3404-000295 SWITCH-TACT;12VDC,50mA,160gf,8.4X22.7,SP ...3 FP801S 3601-000281 FUSE-CARTRIDGE;250V,4A,TIME-LAG,GLASS,5. ...3 V999S 3704-001105 SOCKET-CRT;11P,20PI,26.5PI,NI,-

...3 JA701 3722-000162 JACK-PIN;2P,3.4mm,SN,BLK,-

...3 T0119 AA09-00374A IC MICOM;TDA9377PS/N2/AI,TXM1967,64P,3.3 ...3 T801S AA26-00172A TRANS-SWITCHING;EER3543,K15D,90~264,PM2A ...3 T0616 AA26-00065A TRANS FBT;-,FSV-14A004C(S),14-22,125V ...3 T401 AA26-50001B TRANS-HORIZ.DRIVE;-,-,-,7.1mH,-,-,102uH, ...3 LR401S AA27-00053A COIL-LINEARLITY;-,193uH,DR10X10 C:4.35,7 ...3 LX801S AA29-30001D FILTER LINE NOISE;SQ1913,-,6.0MH,0.8A,-

...3 RM901 AA32-00015A MODULE-REMOCON;FRP-3521H31,38KHZ,940MM,M

...3 CN501 AA39-20620B LEAD-CONNECTOR;ASSY,9P,YBNH250-09,S,400m

...3 TU01S AA40-00073A TUNER-TECC1040PG32A(S),181CH,45.75MHZ,75 ...3 IC301 AA96-00244A ASSY H/S;-,-,AA62-00046A,LA7840,- S.N.A

....4 0205-001153 GREASE-SILICON;SC102,JAPAN,- S.N.A

....4 T0088 1204-001483 IC-VERTICAL PROCESSO;LA7840,SIP,7P,708MI

....4 T0081 6003-000335 SCREW-TAPTITE;RH,+,2S,M3,L8,ZPC(YEL),SWR S.N.A

....4 AA62-00046A HEAT SINK-PS;-,-,T1.0,-,D1(DREAM) 60X25X S.N.A

...3 IC601 AA96-00244D ASSY H/S;-,SOUND,AA62-00046A,TDA7266M,- S.N.A

....4 0205-001153 GREASE-SILICON;SC102,JAPAN,- S.N.A

....4 T0085 1201-001600 IC-AUDIO AMP;7266,ZSIP,15P,-,SINGLE,26dB

....4 T0081 6003-000335 SCREW-TAPTITE;RH,+,2S,M3,L8,ZPC(YEL),SWR S.N.A

....4 AA62-00046A HEAT SINK-PS;-,-,T1.0,-,D1(DREAM) 60X25X S.N.A

...3 IC802 AA96-00245A ASSY H/S;-,-,AA62-00055A,KA7632,- S.N.A

....4 IC062 1203-001939 IC-MULTI REG.;7632,SIP,10P,-,PLASTIC,3.3

....4 T0081 6003-000334 SCREW-TAPTITE;RH,+,2S,M3,L6,ZPC(YEL),SWR S.N.A

....4 AA62-00055A HEAT SINK-PS;-,-,T1.0,-,35*15*25,D1,-,-, S.N.A

...3 IC501 AA96-50311A ASSY-H/S;-,VIDEO,AA62-30175D,TDA6107Q,- S.N.A

....4 T0074 1201-001159 IC-VIDEO AMP;6107,ZSIP,9P,-,SINGLE,-,PLA

....4 T0081 6003-000334 SCREW-TAPTITE;RH,+,2S,M3,L6,ZPC(YEL),SWR S.N.A

....4 AA62-30175D HEAT SINK-PS;-,SECC,T1.0,-,33X15X30 FT-2 S.N.A

...3 IC801S AA96-00816A ASSY H/S;,POWER,AA62-00112A,5Q0765RT,TRO S.N.A

....4 0205-001153 GREASE-SILICON;SC102,JAPAN,- S.N.A

....4 T0086 1203-001932 IC-PWM CONTROLLER;5Q0765,TO-220F,5P,185M

....4 T0081 6003-000335 SCREW-TAPTITE;RH,+,2S,M3,L8,ZPC(YEL),SWR S.N.A

....4 AA62-00112A HEAT SINK;TROJAN,AL1050 ,T2.0,W54.0,H40. S.N.A

...3 LD901 AA96-00555A ASSY LED GUIDE;-,-,UEX-LD-030,GREEN S.N.A ...3 C701 2401-002219 C-AL;220uF,20%,400V,GP,BK,25x40,10 ...3 T0900 1404-001045 THERMISTOR-NTC;4.7ohm,15%,2900K,35.0mW,T ...3 CN906 3711-002642 CONNECTOR-HEADER;BOX,3P,1R,2.5mm,STRAIGH ...3 P803T 1404-001265 THERMISTOR-PTC;4.5OHM/100OHM,+30/-20%,22 ...3 T0245 AA39-20010H LEAD CONNECTOR-ASSY;,1P,300,YFH800-01,S,

...3 A/AUTO AA97-13358A ASSY AUTO;K15D,20,F/V,MONO,LATIN,CT20F3 S.N.A

....4 CISS 0401-000005 DIODE-SWITCHING;1N4148,75V,150MA,DO-35,T

....4 CISS 0401-000006 DIODE-SWITCHING;BAV21,250V,200MA,DO-35,T

....4 T0083 0402-000132 DIODE-RECTIFIER;1N4004,400V,1A,DO-41,TP

....4 T0083 0402-000254 DIODE-RECTIFIER;RGP10J,600V,1A,DO-41,TP

....4 T0083 0402-000493 DIODE-RECTIFIER;1R5GU41,400V,1.5A,DO-15L

....4 T0083 0402-000534 DIODE-RECTIFIER;RG10V,400V,1.2A,DO-201,T

....4 T0083 0402-001105 DIODE-RECTIFIER;ERB43-04SV1,400V,1A,TS-1

....4 T0083 0402-001111 DIODE-RECTIFIER;1N5397GP,600V,1.5A,-,TP

....4 DZ016 0403-000508 DIODE-ZENER;MTZJ5.6B,5.45-5.73V,500MW,DO

7-1Samsung Electronics

Electrical Parts List

Level Loc.No. Code No. Description;Specification Remark Level Loc.No. Code No. Description;Specification Remark

....4 DZ016 0403-000508 DIODE-ZENER;MTZJ5.6B,5.45-5.73V,500MW,DO

....4 DZ016 0403-001039 DIODE-ZENER;MA2560,52-60V,1000MW,DO-41,T

....4 DZ016 0403-000700 DIODE-ZENER;TZP33A,5%,1000MW,DO-41,TP

....4 DZ016 0403-000719 DIODE-ZENER;MTZJ7.5B,7.11-7.44V,500MW,DO

....4 DZ016 0403-000720 DIODE-ZENER;MTZJ9.1B,8.57-9.01V,500MW,DO

....4 DZ016 0403-001140 DIODE-ZENER;RD10ESAB-T4,9.7-10.2V,400MW,

....4 DZ016 0403-001211 DIODE-ZENER;MTZJ12B,11.8-12.3V,500MW,DO-

....4 DZ016 0403-001221 DIODE-ZENER;UZ39BSB,35.36-37.19V,500MW,D

....4 DZ016 0403-001318 DIODE-ZENER;MTZJ4.3B,4.17-4.43V,500MW,DO

....4 DZ016 0403-001373 DIODE-ZENER;MTZJ5.1A,4.85-5.03V,500MW,D0

....4 DZ016 0403-001327 DIODE-ZENER;MTZJ18A,16.22-17.06V,500MW,D

....4 DZ016 0403-001328 DIODE-ZENER;MTZJ22A,20.15-21.2V,500MW,DO

....4 T0156 0501-000283 TR-SMALL SIGNAL;KSA539,PNP,400mW,TO-92,T

....4 T0156 0501-000369 TR-SMALL SIGNAL;KSC2331-Y,NPN,1000mW,TO-

....4 T0156 0501-002183 TR-SMALL SIGNAL;KTC9014,NPN,625mW,TO-92,

....4 R125 2001-000005 R-CARBON;390ohm,5%,1/8W,AA,TP,1.8x3.2mm

....4 R125 2001-000010 R-CARBON;68KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R075 2001-000016 R-CARBON(S);1OHM,5%,1/2W,AA,TP,2.4X6.4MM

....4 R075 2001-000019 R-CARBON(S);10OHM,5%,1/2W,AA,TP,2.4X6.4M

....4 R075 2001-000022 R-CARBON(S);33OHM,5%,1/2W,AA,TP,2.4X6.4M

....4 R075 2001-000037 R-CARBON(S);330OHM,5%,1/2W,AA,TP,2.4X6.4

....4 R075 2001-001138 R-CARBON(S);390OHM,5%,1/2W,AA,TP,2.4X6.4

....4 R125 2001-000241 R-CARBON;1.5KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000273 R-CARBON;100KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000281 R-CARBON;100OHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000325 R-CARBON;120OHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000397 R-CARBON;180KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000008 R-CARBON;15KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000490 R-CARBON;200OHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000563 R-CARBON;27KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000591 R-CARBON;3.3KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000689 R-CARBON;390KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000739 R-CARBON;4.7MOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000786 R-CARBON;47KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000793 R-CARBON;47OHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000857 R-CARBON;560OHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000924 R-CARBON;680OHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000947 R-CARBON;7.5KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R125 2001-000969 R-CARBON;75OHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 R075 2001-001037 R-CARBON(S);0.39OHM,5%,1/2W,AA,TP,2.4X6.

....4 R075 2001-001062 R-CARBON(S);10MOHM,5%,1/2W,AA,TP,2.4X6.4

....4 R075 2001-001078 R-CARBON(S);15KOHM,5%,1/2W,AA,TP,2.4X6.4

....4 R303 2003-002238 R-METAL OXIDE(S)1.3OHM,5%2W,AF,TP,3.9X10

....4 R075 2001-001108 R-CARBON(S);22KOHM,5%,1/2W,AA,TP,2.4X6.4

....4 R075 2001-001114 R-CARBON(S);270OHM,5%,1/2W,AA,TP,2.4X6.4

....4 R075 2001-001150 R-CARBON(S);470KOHM,5%,1/2W,AA,TP,2.4X6.

....4 R075 2001-001187 R-CARBON(S);75OHM,5%,1/2W,AA,TP,2.4X6.4M

....4 R075 2001-001045 R-CARBON(S);1.2KOHM,5%,1/2W,AA,TP,2.4X6.

....4 R0521 2002-001008 R-COMPOSITION;1.8Kohm,10%,1/2W,AA,TP,3.7

....4 R0521 2002-001013 R-COMPOSITION;4.7Mohm,5%,1/2W,AA,TP,3.7x

....4 R402 2003-002178 R-METAL OXIDE(S) 1Kohm,5%,2W,AG,TP,3.9X1

....4 R316 2003-000652 R-METAL OXIDE(S);330ohm,5%,2W,AF,TP,4x12

....4 R413 2003-000664 R-METAL OXIDE(S);33ohm,5%,2W,AF,TP,4x12m

....4 R403 2003-002173 R-METAL OXIDE(S);7.5Kohm,5%,2W,AG,TP,3.9

....4 R827 2003-000998 R-METAL OXIDE;300ohm,5%,2W,AF,TP,3.9x10m

....4 R407 2003-001040 R-METAL OXIDE(S);47Kohm,5%,2W,AF,TP,3.9x

....4 R834 2003-001040 R-METAL OXIDE(S);47Kohm,5%,2W,AF,TP,3.9x

....4 R603 2004-000195 R-METAL;100Kohm,1%,1/8W,AA,TP,1.8x3.2m

....4 R024 2004-001373 R-METAL(S);100Kohm,1%,1/2W,AA,TP,2.4x6.4

....4 R024 2004-001402 R-METAL(S);6.8Kohm,1%,1/2W,AA,TP,2.4x6.4

....4 R219 2004-001914 R-METAL;39Kohm,2%,1/8W,AA,TP,1.8x3.5mm

....4 R024 2004-001371 R-METAL(S);1.5Kohm,1%,1/2W,AA,TP,2.4x6.4

....4 R304 2008-000253 R-FUSIBLE(S);0.47ohm,5%,1W,AF,TP,3.9x10m

....4 R305 2008-000253 R-FUSIBLE(S);0.47ohm,5%,1W,AF,TP,3.9x10m

....4 R801 2008-001107 R-FUSIBLE(S);300ohm,5%,2W,AG,TP,3.9x12mm

....4 R608 2008-000284 R-FUSIBLE(S);0.1OHM,10%,2W,AF,TP,3.9X10M

....4 R609 2008-000284 R-FUSIBLE(S);0.1OHM,10%,2W,AF,TP,3.9X10M

....4 R824 2008-000294 R-FUSIBLE(S);33ohm,5%,2W,AF,TP,3.9x10mm

....4 R422 2008-001011 R-FUSIBLE(S);0.18ohm,10%,2W,AF,TP,3.9x10

....4 R421 2008-001011 R-FUSIBLE(S);0.18ohm,10%,2W,AF,TP,3.9x10

....4 R420 2008-001047 R-FUSIBLE(S);68ohm,5%,2W,AF,TP,3.9x10mm

....4 C806 2301-001435 C-FILM,LEAD-PPF;1.5nF,5%,1.2kV,TP,15x8x1

....4 C598 2201-000192 C-CERAMIC,DISC;10PF,0.25PF,500V,NPO,-,5M

....4 C598 2201-000145 C-CERAMIC,DISC;0.1NF,5%,50V,RH,TP,8.5X3M

....4 C598 2201-000639 C-CERAMIC,DISC;680PF,10%,2KV,Y5P,-,5MM,T

....4 C598 2201-000573 C-CERAMIC,DISC;0.047NF,5%,50V,C0G,TP,5X3

....4 C598 2201-000599 C-CERAMIC,DISC;0.56NF,10%,500V,Y5P,TP,5.

....4 C598 2201-000639 C-CERAMIC,DISC;680PF,10%,2KV,Y5P,-,5MM,T

....4 C598 2201-000723 C-CERAMIC,DISC;4.7NF,20%,3KV,Y5U,TP,16X5

....4 C598 2201-000991 C-CERAMIC,DISC;0.56NF,10%,2KV,Y5P,TP,7.5

....4 C689 2202-000127 C-CERAMIC,MLC-AXIAL;10nF,+80-20%,25V,Y5V

....4 C689 2202-000796 C-CERAMIC,MLC-AXIAL;1NF,10%,50V,Y5P,TP,3

Samsung Electronics7-2

Electrical Parts List

Level Loc.No. Code No. Description;Specification Remark Level Loc.No. Code No. Description;Specification Remark

....4 C689 2202-000825 C-CERAMIC,MLC-AXIAL;680pF,10%,50V,Y5P,TP

....4 C689 2202-000829 C-CERAMIC,MLC-AXIAL;820pF,10%,50V,Y5P,TP

....4 C689 2202-002037 C-CERAMIC,MLC-AXIAL;100nF,80-20%,50V,Y5V

....4 C2560 2301-000213 C-FILM,LEAD-PEF;220nF,5%,250V,TP,21.5x11

....4 C2560 2301-000224 C-FILM,LEAD-PEF;22nF,5%,50V,TP,7.4x3.9x1

....4 C2560 2301-000254 C-FILM,LEAD-PEF;39nF,5%,50V,TP,7.5x3.5x6

....4 C2560 2301-000301 C-FILM,LEAD-PEF;6.8nF,5%,50V,TP,6.5X5.5X

....4 C2560 2301-000342 C-FILM,LEAD-PEF;2.2nF,5%,50V,TP,7.4x3.9x

....4 C2560 2301-000383 C-FILM,LEAD-PEF;10nF,5%,50V,TP,6x7x3.2mm

....4 C2560 2301-000445 C-FILM,LEAD-PEF;4.7nF,5%,50V,TP,5.5x7x3m

....4 C420 2301-001065 C-FILM,LEAD-PPF;47nF,5%,630V,TP,19x15.5x

....4 C2560 2305-000149 C-FILM,LEAD-PEF;100nF,5%,100V,TP,12x12.5

....4 C2560 2305-000285 C-FILM,LEAD-PEF;220NF,5%,100V,TP,10.5X5.

....4 C2560 2305-000289 C-FILM,LEAD-PEF;220nF,5%,63V,TP,-,5mm

....4 CR405S 2305-000382 C-FILM,MPEF;4.7NF,5%,400V,TP,-,5MM.

....4 C2560 2305-000412 C-FILM,LEAD-PEF;470nF,5%,63V,TP,-,5mm

....4 C2560 2305-000665 C-FILM,LEAD-PEF;100nF,5%,63V,TP,7.5x4.0x

....4 C225 2301-001664 C-FILM,MPE-PPF;100nF,3%,50V,TP,20x16x8.5

....4 C701 2401-000262 C-AL;100uF,20%,160V,HR,TP,16x25,7.5

....4 C701 2401-000302 C-AL;100uF,20%,25V,GP,TP,6.3x11,5

....4 C701 2401-000360 C-AL;100uF,20%,50V,GP,TP,8x11.5,5

....4 C701 2401-000430 C-AL;10uF,20%,250V,GP,TP,10x16mm,5m

....4 C701 2401-000055 C-AL;1uF,20%,160V,WT,TP,3x11,5mm

....4 C701 2401-000603 C-AL;1UF,20%,50V,GP,TP,5X11,2

....4 C701 2401-000660 C-AL;2.2uF,20%,50V,GP,TP,5x11,5

....4 C701 2401-000927 C-AL;22uF,20%,250V,GP,TP,13x20,5

....4 C701 2401-000962 C-AL;22uF,20%,50V,GP,TP,5x11,5

....4 C701 2401-001192 C-AL;33uF,20%,50V,GP,TP,6.3x11,5

....4 C701 2401-001232 C-AL;4.7uF,20%,250V,GP,TP,10x12.5,5

....4 C701 2401-001397 C-AL;470uF,20%,25V,GP,TP,10x16,5

....4 C701 2401-002288 C-AL;470uF,20%,25V,WT,TP,10x20,5

....4 C701 2401-000025 C-AL;100uF,20%,16V,GP,TP,6.3x11,5

....4 C701 2401-001998 C-AL;1000uF,20%,25V,GP,TP,10x20,5mm

....4 C701 2401-002144 C-AL;47uF,20%,16V,GP,TP,5x11,5

....4 C701 2401-000050 C-AL;10uF,20%,16V,GP,TP,5x11,2.5

....4 C701 2401-002290 C-AL;47uF,20%,160V,GP,TP,13x20,5

....4 C701 2401-002594 C-AL;220uF,20%,16V,GP,TP,8x11.5,5

....4 C701 2401-002619 C-AL;47uF,20%,25V,GP,TP,5x11,5

....4 C701 2401-003028 C-AL;100uF,20%,25V,WT,TP,6.3x11,5

....4 L103 2701-000114 INDUCTOR-AXIAL;10UH,10%,2534

....4 L202 2701-000114 INDUCTOR-AXIAL;10UH,10%,2534

....4 L903 2701-000114 INDUCTOR-AXIAL;10UH,10%,2534

....4 R101 2701-000114 INDUCTOR-AXIAL;10UH,10%,2534

....4 R102 2701-000114 INDUCTOR-AXIAL;10UH,10%,2534

....4 L203 2701-000127 INDUCTOR-AXIAL;15UH,10%,2534

....4 L301 2701-000142 INDUCTOR-AXIAL;1UH,10%,2534

....4 L302 2701-000142 INDUCTOR-AXIAL;1UH,10%,2534

....4 L404 2701-000142 INDUCTOR-AXIAL;1UH,10%,2534

....4 L102 2701-000159 INDUCTOR-AXIAL;22UH,10%,4298

....4 L201 2701-000159 INDUCTOR-AXIAL;22UH,10%,4298

....4 L230 2701-000159 INDUCTOR-AXIAL;22UH,10%,4298

....4 L405 2701-000159 INDUCTOR-AXIAL;22UH,10%,4298

....4 L902 2701-000177 INDUCTOR-AXIAL;33UH,10%,2534

....4 L904 2701-000177 INDUCTOR-AXIAL;33UH,10%,2534

....4 L804 2701-001030 INDUCTOR-AXIAL;43UH,10%,4514

....4 L807 2701-001030 INDUCTOR-AXIAL;43UH,10%,4514

....4 F101 2901-000297 FILTER-EMI ON BOARD;-,3A,-,-,3.5x5,TP,-

....4 L2514 3301-000287 BEAD-AXIAL;,3.5x1.0x6.0mm,3000mA,TP,,,50

....4 SW901 3404-000244 SWITCH-TACT;15V,20mA,90-170gf,7.5x7mm,SP

....4 SW902 3404-000244 SWITCH-TACT;15V,20mA,90-170gf,7.5x7mm,SP

....4 SW903 3404-000244 SWITCH-TACT;15V,20mA,90-170gf,7.5x7mm,SP

....4 SW904 3404-000244 SWITCH-TACT;15V,20mA,90-170gf,7.5x7mm,SP

....4 SW905 3404-000244 SWITCH-TACT;15V,20mA,90-170gf,7.5x7mm,SP

....4 FD801S 3601-001086 FUSE-AXIAL LEAD;125V,5A,FAST-ACTING,GLAS

....4 F801A 3602-000114 FUSE-HOLDER;-,-,30mohm

....4 F801B 3602-000114 FUSE-HOLDER;-,-,30mohm

....4 02VER AA41-00625C PCB-MAIN;TXM1967X/XAA,FR-1,1L,C,1.6T,245 S.N.A

....4 EY401 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY402 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY403 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY404 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY405 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY414 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY415 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY416 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY417 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY418 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY419 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY420 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY421 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY501 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY819 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY827 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY829 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EY833 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H S.N.A

....4 EL401 6042-000001 EYELET;ID2.2,OD2.7,L3.1,NI+SN,BSP3-1/2H S.N.A

....4 EL402 6042-000001 EYELET;ID2.2,OD2.7,L3.1,NI+SN,BSP3-1/2H S.N.A

....4 EL801 6042-000001 EYELET;ID2.2,OD2.7,L3.1,NI+SN,BSP3-1/2H S.N.A

....4 EL802 6042-000001 EYELET;ID2.2,OD2.7,L3.1,NI+SN,BSP3-1/2H S.N.A

....4 GT501 AA60-40014A PIN-GT,ASSY;AUTO S.N.A

....4 GT801 AA60-40014A PIN-GT,ASSY;AUTO S.N.A

....4 GT802 AA60-40014A PIN-GT,ASSY;AUTO S.N.A

....4 GT803 AA60-40014A PIN-GT,ASSY;AUTO S.N.A

....4 GT804 AA60-40014A PIN-GT,ASSY;AUTO S.N.A

....4 GT805 AA60-40014A PIN-GT,ASSY;AUTO S.N.A

....4 GT101 AA60-40014A PIN-GT,ASSY;AUTO S.N.A

....4 GT806 AA60-40014A PIN-GT,ASSY;AUTO S.N.A

....4 Z201 2903-000129 FILTER-CERAMIC;BR,4.5MHz,-,-,-,TP,-

....4 C701 2401-002009 C-AL;100uF,20%,16V,GP,TP,6.3x7,5

....4 R505 2008-000264 R-FUSIBLE(S);1ohm,5%,1W,AF,TP,3.9x10mm

....4 R825 2008-000264 R-FUSIBLE(S);1ohm,5%,1W,AF,TP,3.9x10mm

....4 CR403S 2306-000179 C-FILM,LEAD-PPF;300nF,5%,250V,TP,20x18.5

....4 C701 2401-000703 C-AL;2200uF,20%,25V,GP,-,12.5x25mm,

....4 T0083 0402-001443 DIODE-RECTIFIER;EGP20K,800V,2A,TO-220F,T

....4 R811 2003-002239 R-METAL OXIDE(S);100KOHM,5%,2W,AF,TP,3.9

....4 R812 2003-002239 R-METAL OXIDE(S);100KOHM,5%,2W,AF,TP,3.9

....4 C701 2401-001914 C-AL;1uF,20%,50V,BP,TP,5x11,5

....4 L2514 3301-001223 BEAD-AXIAL;62ohm,3.5x0.8x5mm,,TP,,,

....4 C2560 2301-000289 C-FILM,LEAD-PEF;5.6nF,5%,50V,TP,7x6x3,5

....4 R125 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2MM

....4 C701 2401-000365 C-AL;100uF,20%,50V,WT,TP,10x12.5mm,

...3 X901 2801-004033 CRYSTAL-UNIT;12MHZ,30PPM,28-AAM,30PF,30O

...3 GT301 AA60-40012D PIN-GT,ASSY;4P,T1.6,6-12.5-14MM,NYLON66 S.N.A

...3 T0066 AA96-20129C ASSY POWER CORD;-,EP2/YES,H/C200,ME301P, S.N.A

....4 T0077 AA39-10007Y CBF POWER CORD;-,EP2/YES,SPT-2 18AWGx2C,

....4 AA61-20284A HOLDER;P-CORD,PP,-,-,-,BLK,VO,KE-002 S.N.A

ASSYACCESSORY

1 M0045 AA92-08377A ASSY ACCESSORY;K15D,14/20,XAP S.N.A

7-3Samsung Electronics

Electrical Parts List

Level Loc.No. Code No. Description;Specification Remark Level Loc.No. Code No. Description;Specification Remark

..2 T0080 AA26-90001F TRANS MATCHING;-,300ohm/75ohm,NTSC,40-89 ..2 T0075 AA42-00004A ANT ROD;CXD1334,VHF,4SDODIPOLE850MMBRN ..2 T0074 AA59-00232A REMOCON;CT20R1,SAMSUNG,BLK,TM59,25,NTSC ..2 T0152 AA68-00987A CARD WARRANTY;-,-,W/P100,-,-,-,-,-,A4,1P S.N.A ..2 T0511 AA68-02665A MANUAL USERS;ENG,W/P100(G),B5,K15D S.N.A ..2 T0511 AA68-02666A MANUAL USERS;SPA,W/P100(G),B5,K15D S.N.A ..2 BAG-PE AA69-01195A BAG PE;CL29A6W8X,HDPET0.012,93/4X151/2 S.N.A

ASSY P/MATERIAL

1 A/PACK AA92-07233B ASSY P/MATERIAL;CT20F3FX/XAX S.N.A ..2 PE-BAG AA69-01208A BAG;SHEET,19-20,W42,L50,FOAM,OEM S.N.A

..2 T0214 AA60-40006A PIN-STAPLE;AUTO,33X17.8X2.4,H18,33X17.8X S.N.A

Samsung Electronics7-4

9. Wiring Diagram

9-1 K15D

BCP TRC

Wiring Diagram

9

B+ OUT

8

GND

7

HEAT

6 5

4 3

2 1

GND

IK

GND

B- OUT

G- OUT

R- OUT

105NC

VIDEO OUT

21

SOUND L IN

3

SOUND L OUT

4

10

VIDEO IN

7NC

5

GND

6

SOUND R OUT

7

SOUND R IN

) OE

4 3

2

1

3

2

1

L - OUT R + OUT L - OUT L + OUT

L - OUT L + OUT L + OUT

BCP V/A

REWOP

DROC

R E T S

( 1 0 6N

C

)ON0M( 306NC

Samsung Electronics 9-1

Samsung Electronics

Troubleshooting

5-1

5. Troubleshooting

5-1 No Power

Counect

the Power code

Check the

12.5V-A Line

Abnormal

Check the

FD801S, D807, IC801S

or AC-Fuse

Normal

Check the

3.3V-A,5V-A Line of IC201S

Abnormal

Check/Replace

IC802

Normal

Check the

X-tal,SDA,SCL port

of IC201S

Normal

Check the

(33)Pin (H-Drive)

of IC201S

Normal

Check the

122.5V- A Line

Normal

Abnormal

Replace IC201 S

Abnormal

Check the

FBT,D805(D806)

Check / Replace

Q401

5-2 Samsung Electronics

5-2 No Video (Sound OK)

Troubleshooting

Check RK,GK,BK

Signal

Nornal

Check the

Voltage of heater

Nornal

Check

CRT and FBT

Abnormal

Check/Replace

R421,R422,D505

Abnormal

Check R,G,B

Signal into CRT

PCB

Abnormal

Check IC201S

Pin 51,52,53

(R.G.B)

Nornal

Check IC501

B+(180V-B)

Abnormal

Check the

resistance of R420

Nornal

Check/Replace

D812,FBT

Nornal

Re-Adjust

Screen Voltage

Abnormal

Replace

R420

Check/Replace

IC201S

Abnormal

Nornal

Check IC201S

Pin 49(BCL-IN)

Pin50(IK)

Nornal

Check

CRT and FBT

5-3 No Sound (Video OK)

Troubleshooting

Samsung Electronics 5-3

Check

IC201S,TUNER

* STEREO

Check IC201S

Check ICS601

Pin28(MIS)

Normal

B+/SDA/SCL

Normal

Checkthe signal

Output from CN603

CN604

Abnormal

Check IC601 Pin1,2,14,15

Abnormal

Check IC201S

Pin28

Normal

Check/Replace

IC201S

Normal

* MONO

Check

Speaker and Wire

AbnormalAbnormal

Check TUNER

Check IC601

Abnormal

Normal

Check FD801S

Normal

B+

Check

R608,R609

D807

Normal

Replace

IC601

Abnormal

Replace/

IC601

Abnormal

Check

Check/Replace

ICS601

Normal

No Power

Replace

FD801S,D807

See

5-4 Samsung Electronics

Troubleshooting

5-4 Vertical Lines Appear or Screen

Check IC301 B+ 16V-C,-13.5V-C

Normal

Check IC201S

Pin 21,22

(VDN,VDP)

Normal

Check / Replace

IC301

Abnormal

Check R304,R305 D301,D302

Abnormal

Check

IC201S

8. Block Diagram

8-1 K15D

Block Diagram

8-1

TUNER -F/S

TECC1040PG32A(38A)

I2C

2-3

I2C

E2PROM

24C04

VIF SAW

M1864M

23 24

SPM -458AN

33

H-OUT

TR

KSC 5386

IC-MCU

12

28 MTS

21/22

50-53

VIDEO

VERTICAL

AMP

LA7840

C R

RGB AMP

TDA6107

4442

(STEREO)

SOUND PROCESSOR

Q

R/L OUT (24, 25)

STEREO

AUDIO A MP

TDA7266M/S

UPD1851B

38, 39

MONO

AV INPUT

BT

F

FSV-14A004C

180V TO C RT

±

16.5V TO Ver.

Heat TO CRT

AMP

T

8R

1EA

*

2EA

8R

*

AC

KA5Q0740RT

(KA5Q0765RT)

S/W

MULTI

REGULATOR

KA7632

3.3V TO MCU 5V TO TUN ER 8V TO MCU

13V TO SOUND

AMP

Schematic Diagrams

10-1Samsung Electronics

10. Schematic Diagrams

10-1 MAIN (1/4)

TP01

TP02

TP03

TP04

TP05

TP06

TP05

TP04

TP02

TP03

TP01

Schematic Diagrams

10-2 Samsung Electronics

10-2 MAIN (2/4)

TP07

TP08

TP09

TP10

TP11

TP07

TP08

TP10

TP09

Schematic Diagrams

10-3Samsung Electronics

10-3 MAIN (3/4)

TP07

TP08

TP07

TP08

: Power Line

: Signal Line

Schematic Diagrams

10-4 Samsung Electronics

10-4 MAIN (4/4)