SAMSUNG CL21Z30MQLXXAO Service Manual

COLOR TELEVISION RECEIVER

Chassis : K16B(N)_Hitch Model : CL21Z30MQLXXAO

COLOR TELEVISION RECEIVER FEATURES

■■

Turbo Plus

■

DNIe jr.

■■

Low Stand-By Power Wattage

■

SOUND Equalizer

SERVICE

Manual

CL-21Z30MQ

CL21Z30MQLXXAO

CHASIS K16B

Table of Contents

Chapter 1 Precaution

■ 1-1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

■ 1-2 Servicing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

■ 1-3 Static Electricity Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

■ 1-4 Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Chapter 2 Product Specification

■ 2-1 Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

■ 2-2 Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

■ 2-3 Specifications Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

■ 2-4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Chapter 3 Alignment & Adjustment

■ 3-1 Service Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

■ 3-2 How to Access Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

■ 3-3 Factory Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

■ 3-4 Service Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

■ 3-5 Software Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

■ 3-6 Replacements & Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Chapter 4 Exploded View & Part List

■ 4-1 CL21Z30MQLXXAO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Chapter 5 Electrical Part List

■ 5-1 CL21Z30MQLXXAO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Chapter 6 Troubleshooting

■ 6-1 Checkpoints by Error Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

■ 6-2 Troubleshooting Procedures by Error Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

■ 6-3 Troubleshooting Procedures by ASS'Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Chapter 7 Block Diagram

■ 7-1 Overall Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

■ 7-2 Partial Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Chapter 8 Wiring Diagram

■ 8-1 Overall Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

■ 8-2 Pin Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

CL21Z30MQLXXAO

CHASIS K16B

Chapter 9 PCB Diagram

■ 9-1 Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

■ 9-2 CRT Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Chapter 10 Schematic Diagram

■ 10-1 Power Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

■ 10-2 Main Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

■ 10-3 CRT Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

■ 10-4 Sound Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

CL21Z30MQLXXAO

CHASIS K16B

Product Specification

Samsung Electronics 2-1

2. Product Specification

2-1 Product Features

Block Specfication Core Parts Remark

CRT 21" SLIM FIT CRT SLIM FIT CRT

RF Part LNA F/S TUNER TDQ-6L/125S, LNA

Power WORLD WIDE INPUT VOLTAGE RANGE STR-W6750F

Video

- MULTI SYSTEM(NT/PAL/SECAM)

- 1H Comb Filter

TDA12025PQ/N1F80

Audio

- Output : 10W X2

- Function : NICAM/A2 STEREO,

- PSEUDO STEREO,

- TURBO PLUS

TDA12025PQ/N1F80 TDA7297SA

Cabinet - 21" CABINET

Other

- BASIC MODEL : CL-21Z30MQ

- UOC3 with a built-in MSP

- TURBO → TURBO PLUS

■ Core Parts Functions

- TDA12025PQ : Video/Sound Processing¹xMICOM

- STR-W6750F : SMPS Power STR

- TDA7297SA : 5W ~ 15W Sound Output BTLAMP

- 24C16 : 16K EEPROM

- LA78040 : Vertical Deflection AMP

- C5936 : H-OUT S/W TR

- TDQ-6L : F/S PAL Tuner(LNA Option)

- TDA6107JF : R/G/B Drive AMP IC

- Flyback Trans : FQH21A001(11P,27KV)

CL21Z30MQLXXAO

CHASIS K16B

Product Specification

2-2 Samsung Electronics

2-2 Key Features

Model CL-21Z30MQ

Voltage AC 100~240V

Frequency of Operation 50/60 Hz

Power Consumption 100 Watts

Dimensions (mm/inches)

640 x 399 x 470/

15.71 x 25.43 x 18.5

Weight (Kg/ lbs) 25.5Kg / 46.96

■ Hardware Configuration

- 1 Chip : UOC3 TDA12005PQ(CHROMA, IF+Deflection, MICOM, MSP)

- Tuner : TDA-6F/13F2S

- SOUND AMP : TDA7297SA(ZIP, 15P, -, DUAL, 32dB, PLASTIC, 20V, 30W)

- SMPS Controller : STR-W6750F(6P, TO-3P-F7L)

- Vertical AMP : LA78040(TO220, 7P, 15V)

- Flyback Trans : FQH21A001(11P, 27KV)

- CRT : A51QDX993X(A) (AK, 1H Single Focus)

■ Software Configuration

- MCU : 80C51-controller core

- Data Capture for US Closed Caption

- 0.4883s machine cycle

■ Picture

- Enhance : DNIe Jr.(Digital Natural Image Engine)

- System : NTSC3.58

- Interlaced(60Hz)

- AKB(Auto Kinetic Bais)

- Comb Filter : 1H Comb Filter

- 4:3

■ Sound

- BTSC/SAP-STEREO

- Output : 5/10/15W X 2CH

- Auto Stereo, Sound Equalizer, Auto Mute, Auto Volume Limit, PSEUDO STEREO, TURBO PLUS

■ Feature

- Composite (RCA A/V, DVD), S-Video(Y/C)

- Picture Size : 4:3

- Auto Serch

- Sleep Timer : 180 Min

- Clock Setting

- Blue Screen, Melody On-Off, Picture Mode Select

■ In/Out Terminals

- Rear : 2RCA/DVD

- Front or Side A/V Input(Side A/V Preferability)

■ Remocon

- Universal Interface TM75

■ Power Consumption : 105W

CL21Z30MQLXXAO

CHASIS K16B

Product Specification

Samsung Electronics 2-3

2-3 Specifications Analysis

Model CL-21M21PQ CL-21Z30MQ

Chassis KS7A K16B

Design

Picture

Screen Size 21" 21"

Pure Flat CRT

○ ○

DNIe Jr.

○ ○

Comb Filter 4H 1H

Velocity Modulation

× ×

Video Noise Reduction

○ ○

Auto Kinetic Bias

○ ○

Color Tone Control

○ ○

Tilt Control

× ×

Picture Mode 4 Mode 4 Mode

Sound

MTS/SAP

○ ○

Output Power(RMS) 15W x 2 10Wx2

Tweeter

× ×

BBE

× ×

Surround Surround Surround

Sound Mode 5 Mode 5 Mode

Graphic Equalizer

× ○

Sub-Woofer Speaker

× ×

Auto Volume Leveler

○ ○

Melody On/Off

○ ○

Turbo Sound

○ ○

Convenience

PIP 1T (Optional)

Plug & Play

○ ○

Zoom Mode

○ ×

OSD Demo

○ ○

OSD Language E/F/S E/F/S

Previous Channel

○ ○

Closed Caption

○ ○

On/Off Timer

○ ○

Sleep Timer

○ ○

Auto Power Off

○ ○

Clock

○ ○

Channel Scan

× ×

Self-diagnostic System

○ ○

Remote Control TM76 TM75

Remote Surf

○ ○

Channel Labelling

○ ○

Blue Screen

○ ○

Rack

× ×

Voltage

Voltage AC100- AC100-240V

Stand-by under 3W under 5W

Jacks

RF Input R1 R1

A/V Input S1/R2 S1/R2

Monitor Output R1 R1

S-VHS Input R1

Headphone S1 S1

DVD Input

○ ○

PC Input(VGA)

× ×

CL21Z30MQLXXAO

CHASIS K16B

Product Specification

2-4 Samsung Electronics

2-4 Accessories

Accessories Item Item code Remark

Supplied Accessories

Remote Control

AAA Alkaline Battery (2)

AA59-00316D

4301-000121

Samsung Service center

User Manual AA68-03751A

Warranty Card AA68-03727A

Accessories that can be purchased

additionally

Video Cable /

Audio Cable

Internal shopping mall

Antenna Cable -

Component Cable -

HDMI Cable -

Antenna Cable -

HDMI/DVI Cable -

CL21Z30MQLXXAO

CHASIS K16B

Alignment & Adjustment

Samsung Electronics 3-1

3. Alignment & Adjustment

3-1 Service Instruction

1. General Adjustment : In general, a color TV can provide ideal visual quality by adjusting the basic settings such as the vertical size, horizontal size, focus, etc. Display a black and white picture on the screen to check if the picture is clearly displayed. If there are some 'spotted' points on the screen when displaying a black and white picture, degauss the screen using the degauss coil. If the spotted points remain, re-adjust the purity and the convergence. This completes the basic performance examination.

Notice.

■ These adjustments and the check list are only applied to K16B chassis-applied models.

■ Only use 230V for the measurement set. It is recommended using an insulation transformer when supplying power to

the set so as to prevent shock to the set or to yourself.

■ These adjustment specifications have been created on the basis of the domestic K16B chassis-applied remote control

model. Some of the contents may be changed subject to the sales location and the product specifications.

※When replacing the Module Service Instruction

1. When replacing the MAIN Board : Tilt adjustment, Focus adjustment, Screen voltage, W/B adjustment are all required. Since

the settings including the Channel information, Deflection, etc. are saved to the EEPROM, recogfigure these settings when replacing the MAIN Board.

The notation of the software information : T-HITNSA-1000 refer to "HITCH BASIC MODEL EUROPE.ver.1000"

Since the settings including the Channel information, Deflection, etc. are saved to the EEPROM, recogfigure these settings when replacing the MAIN Board.

2. When replacing the CRT Ass'y : No adjustments required

3. When replacing the front panel Master Power switch : No adjustments required

4. When replacing the Side AV Ass'y : No adjustments required

5. When replacing the PIP Module : No adjustments required

6. When replacing the Control Ass'y : No adjustments required

7. When replacing the PFC Ass'y : No adjustments required

CL21Z30MQLXXAO

CHASIS K16B

1. To enter Service Mode, press the keys on the remote control according to the following sequence. (in Stand-by status)

Mute → 1 → 8 → 2 → Power On

※ When failing to enter Service Mode, repeat the procedure above.

2. The initial screen of Service Mode.

3. Functions of the Keys within Service Mode.

Alignment & Adjustment

3-2 Samsung Electronics

3-2 How to Access Service Mode

MENU Show all menus

▲ / ▼

Move the cursor to select an item.

◀ / ▶

Adjust the selected configuration value

Option1 XX XX XX XX XX Option2 Deflection Video Adjust1 Video Adjust2 Video Adjust3 Video Adjust4 Video Adjust5 YC Delay Others Bus Stop Off CHECKSUM 0000 G2 Adjust RESET

T-HITNSA-XXXX 20XX/XX/XX

CL21Z30MQLXXAO

CHASIS K16B

Alignment & Adjustment

Samsung Electronics 3-3

3-3 Factory Data

1. Option1

2. Option2

★ The underlined are items applied during the service adjustment. None of the others should be adjusted.

No Item CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 System CL CP

2 Video Mute 400msec 400msec

3 AV Jack 2RCA+DVD 2RCA+DVD

4 Sound Stereo Stereo

5 Volume Curve Large Small

6 Initial Lang. English Portugal

7 Tilt Off Off

8 DNIe Jr Off Off

9 PIP Off Off

10 Auto Power On Off Off

11 Caption On On

12 Vchip Off Off

13 Child Look Off On

14 Plug Play On On

15 StandBy LED Off On

No Item CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 X-Ray Protect Off Off

2 High Deviation Off Off

3 V-Guard On On

4 ACS Off Off

5 CRT 4:3 Zoom 4:3 Zoom

6 LNA Off Off

7 Hotel Mode Off Off

8 Philippines Off Off

9 PIP Device SDA9488 SDA9488

CL21Z30MQLXXAO

CHASIS K16B

Alignment & Adjustment

3-4 Samsung Electronics

3. Deflection(NTSC 60Hz)

4. Deflection(PAL N 50Hz)

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 V Amp Var. 35 35

2 V Shift Var. 28 28

3 H EW Var. 32 32

4 H Shift Var. 32 32

5 V Linearity Var. 36 36

6 V S-Correction Fixed 30 30

7 V Slope Fixed 30 30

8 V Scroll Fixed 32 32

9 V Zoom Fixed 48 48

10 H Parabola Va r. 32 32

11 Upper Corner Var. 32 32

12 Lower Corner Var. 32 32

13 H T

rapezium

Var. 32 32

14 Bow Var. 32 32

15 Angle Var. 32 32

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 V

Amp

Var. 0 0

2 V Shift Var. -3 -3

3 H EW Va r. 0 0

4 H Shift Var. -6 -6

5 V Linearity Fixed 0 0

6 V S-Correction Fixed 0 0

7 V Slope Fixed 0 0

8 V Scroll Fixed 0 0

9 V Zoom Fixed 0 0

10 H Parabola Fixed 0 0

11 Upper Corner Fixed 0 0

12 Lower Corner Fixed 0 0

13 H Trapezium Fixed 0 0

14 Bow Fixed 0 0

15 Angle Fixed 0 0

CL21Z30MQLXXAO

CHASIS K16B

Alignment & Adjustment

Samsung Electronics 3-5

CL21Z30MQLXXAO

CHASIS K16B

Alignment & Adjustment

3-6 Samsung Electronics

5. Video Adjust1

6. Video Adjust2

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 R Cutof

Var. 23 23

2 B Cutoff Var. 43 43

3 R Drive Var. 44 44

4 G Drive Fixed 32 32

5 B Drive Va r. 40 40

6 Sub Bright Var. 14 14

7 Sub Contrast Var. 9 9

8 PAL/SECAM Sub Color Fixed 23 12

9 NTSC Sub Color Fixed 16 16

10 NTSC Sub Tint Fixed 13 13

11 YUV Sub Tint Fixed 32 32

12 AKB Option Fixed 0 0

13 Peaking CFO & Delay Mode Fixed 1 1

14 Sub Sharpness-RF Fixed 23 23

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 Melody Volume Fixed 25 15

2 RF AGC Var. 21 21

3 IF AGC Speed Fixed 1 1

4 VM Mode Fixed 0 0

5 VM Gain Fixed 0 0

6 VM Delay Fixed 0 0

7 Blue Stretch Fixed 0 0

8 G2 Adjust Bright Fixed 42 42

9 Soft Clipping Level Fixed 1 1

10 Peak White Limit Fixed 15 15

11 Cathode Drive Level Fixed 6 6

12 IF Demodulator Fixed 30 30

13 Fast Filter IF PLL Fixed 0 0

14 FOAB Fixed 3 3

CL21Z30MQLXXAO

CHASIS K16B

Alignment & Adjustment

Samsung Electronics 3-7

7. Video Adjust3

8. Video Adjust4

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 PIP Contrast Fixed 2 2

2 PIP Bright Fixed 2 2

3 PIP Tint Fixed 1 1

4 PIP Color Fixed 10 10

5 PIP YC Delay Fixed 12 12

6 PIP PAL V.Pos Fixed 1 1

7 PIP NTSC V. Pos Fixed 1 1

8 PIP H. Pos Fixed 0 0

9 PIP R Cutoff Fixed 9 9

10 PIP G Cutoff Fixed 7 7

11 PIP B Cutoff Fixed 8 8

12 PIP R Drive Fixed 115 115

13 PIP G Drive Fixed 127 127

14 PIP B Drive Fixed 115 115

15 PIP AGC Mode Fixed 3 2

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 IF Preset Value 1 Fixed 32 32

2 IF Preset Value 2 Fixed 32 32

3 IF PLL Osc Preset Value Fixed 0 0

4 Preset Gain R Fixed 20 20

5 Preset Gain G Fixed 20 20

6 Preset Gain B Fixed 20 20

7 Turbo Center Frequency Fixed 0 0

8 DCXO Caps/NICAM Center Fixed 59 59

9 DCXO Scaning Control Gain Fixed 3 3

10 Component H-Shift Offset Fixed 3 3

11 Component R Cutoff Fixed 0 0

12 Component B Cutoff Fixed 0 0

13 Component R Drive Fixed 0 0

14 Component B Drive Fixed 0 0

CL21Z30MQLXXAO

CHASIS K16B

Alignment & Adjustment

3-8 Samsung Electronics

10. YC Delay

9. Video Adjust5

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 System I Output Signal AMP Fixed 0 0

2 Bypass of Chroma Base Band Fixed 1 0

3 Fixed Beam Current Fixed 0 0

4 Fixed Beam Current 1 Fixed 0 0

5 IF Sensitivity Fixed 0 0

6 Forced Digital Interface Fixed 0 0

7 Enable Digital Interface Fixed 0 0

8 Sync Performance Trick Mode Fixed 0 0

9 Vertical Overscan Fixed 0 0

10 Beam Current Limiting Fixed 0 0

11 Comb filter Fixed 0 0

12 De Interlace Fixed 0 0

13 Chroma Trap Mode Fixed 0 0

14 Black Current Measure Line Fixed 0 0

15 EHT Tracking Mode Fixed 1 1

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 PAL Delay Fixed 8 8

2 NTSC Delay Fixed 8 8

3 PALAV Delay Fixed 8 8

4 NTSC AV Delay Fixed 8 8

CL21Z30MQLXXAO

CHASIS K16B

Alignment & Adjustment

Samsung Electronics 3-9

11. Others

12. Bus Stop : Off

13. Checksum : 0000

14. G2 Adjust : Screen Adjust OK/NG/Obove

15. Reset

Model CL21Z30MQLXXAX CL21Z30MQLXXAZ

MICOM(UOC3) Version NO. T-HITNSA-1000 2005/**/** T-HITNSA-1000 2005/**/**

White Balance(NTSC/PAL N_M)

275/275/45ft 275/275/45ft

265/265/2.5ft 265/265/2.3ft

No Item Var./Fixed CL21Z30MQLXXAX CL21Z30MQLXXAZ

1 Service Blanking Fixed 0 0

2 High Current Level Fixed 1 1

3 Black Area Fixed 2 2

4 Black Stretch Fixed 2 2

5 OSD Brightness Fixed 25 25

6 PWL Active Fixed 1 1

7 Bypass Peaking Delay Fixed 0 0

8 Ratio Pre. & After Shoot Fixed 2 2

9 Ratio Posi. & Nega Peaks Fixed 1 1

10 Dynamic Skin Fixed 1 1

11 Gamma & White Stretch Fixed 1 1

12 Video Depandent Coring Fixed 2 2

13 PAL/NTSC Ident Sensitivity Fixed 1 1

14 Comb Filter Diode Clamp Fixed 1 0

15 DC Transfer Ratio Fixed 1 1

CL21Z30MQLXXAO

CHASIS K16B

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