SAMSUNG CL21M16MNZXXAX Service Manual

DIGITAL TELEVISION RECEIVER

Chassis : KS9A(N) Model : CL21M16MNZXXAX

COLOR TELEVISION RECEIVER CONTENTS

Specifications

Alignment and Adjustments

Exploded Views and Parts List

Electrical Parts List

PCB Diagram

Schematic Diagrams

1.

2.

3.

4.

5.

6.

ELECTRONICS

Printed in Korea

AA82-01465A

This Service Manual is a property of Samsung Electronics Co.,Ltd.

Any unauthorized use of Manual can be punished under applicable

International and/or domestic law.

Alignment and Adjustments

Samsung Electronics 2-1

2. Alignment and Adjustments

2-1 General Alignment Instructions

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

2. Observe the picture for good black and white details. There should be objectionable color shading; if color shading is present, demagnetize, perform 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.

2-2 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 is moved or turned in a different direction, the power should be OFF for at least 10 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 turning power OFF.

If color shading persists, perform the following Color purity and Convergence adjustments.

2-3 High Voltage Check

CAUTION : There is no high voltage adjustment on this chassis. The B+ power supply should be +135 volts (with 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. Adjust the Brightness and contrast controls to both extremes. Ensure that the high voltage does not exceed 30 KV under any conditions.

Alignment and Adjustments

2-2 Samsung Electronics

2-4 FOCUS Adjustment

1. Iput a black and white signal.

2. Adjust the tuning control for the clearest picture.

3. Adjust the FOCUS control for well defined scanning lines in the center area of the screen.

2-5 Factory Adjustment

1. To enter the “Service Mode”, Press the remote-control keys in this sequence :

- If you do not have Factory remote-control

- If you have Factory remote-control

2-5-1 Service Mode

2-5-2 Factoy Mode OSD

ADJUST OPTION CHCKSUM RESET

T-FMTNUS-0000

2-5-2 ADJUST

PICTURE OFF PICTURE ON

MUTE 1 8 2

PICTURE ON

DISPLAY

)

(

FACTORY

Alignment and Adjustments

Samsung Electronics 2-3

No Deflection

Remark

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

Adjust

FIX

Adjust

FIX

Adjust

FIX

Adjust

FIX

INITIAL

37

34

30

31

33

9

10

7

28

43

30

32

46

29

5

0

1

5

10

7

1

12

0

1

15

3

13

1

40

5

17

0

6

32

0

MIN

0

MAX

63

15

23

63

7

1

15

23

63

50

1

15

1

3

63

3

15

1

63

20

23

16

63

1

ADJUST

30

22

23

25

33

9

10

7

28

43

30

32

46

33

5

0

1

10

7

1

12

0

1

15

3

15

1

40

5

10

0

9

32

0

HS

VA

VSL

VS

AGC

CDL

SCT

SBT

BLR

BLB

RG

GG

BG

SC

STT

AKB

NDL

NSR

VOL

MVOL

RPO0

RPO1

CAP

FMWS

AGCS

OMD

SCL

PWL

MUS

SCBT

SSP

DNSR

DSBT

DCDL

DBLR

DBLB

DSK

T-FMTNUS FACTORY

Alignment and Adjustments

2-4 Samsung Electronics

YC DELAY

Off

STEREO

EXTERNAL

Off

On

English

Off

On

Off

AV1/2/DVD

Off

No

Item

Remark

Video Mute time between the Channel changes

Audio MONO/STEREO Option

SIF Option

Turns on automatically when the Master Power is turned ON

Mutes the Audio when there is no source signal

Preset OSD (On-Screen Display) language at time of purchase

Blue Screen when there is no source signal

Back Jack Option

1

2

3

4

5

6

7

8

9

10

11

Video Mute

Audio

2ND SIF

Auto Power

Audio Mute

Start Language

Hotel Mode

Blue Screen

V-Chip

AV Option

AFN

Option

Initial

Off

STEREO

EXTERNAL

Off

On

English

Off

On

Off

AV1/2

Off

21” FLAT

275/265/45FL

275/265/1.5FL

Item

Remark

Hight Light

Low Light

White Balance

21” FLAT