Samsung CL21B501HL Manuel utilisateur

SERVICE

Manual

COLOR TELEVISION

Chassis: KSCB(N)_CB5H

Model : CL21B501HLMXZS

COLOR TELEVISION CONTENTS

1. Precaution

2. Product Specification

3. Disassembly & Reassembly

4. Troubleshooting

5. Exploded View & Part List

6. Wiring Diagram

7. Schematic Diagram

Refer to the service manual in the GSPN (see the rear cover) for the more information.

CL21B501HL

Troubleshooting

4-14 Samsung Electronics

4-2 Adjustment

4-2-1 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.

Troubleshooting

Samsung Electronics 4-15

4-2-2 How to Access Service Mode

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

To Enter:

2. The initial screen of Service Mode.

3. Functions of the Keys within Service Mode.

MENU Show all menus

▲

/▼

Move the cursor to select an item.

◀/▶

Adjust the selected configuration value

4. W/B Setting

No Item Data RequiredAdjustment

1 White Balance x:275±5y:275±5Y:45±3 White Balance (Standard Data)

x:265±5y:265±5Y:1.5±0.3

2 Screen Voltage Toshiba Pattern Same As KSCA Chassis

G2Adjust

Info Menu POWER ONMute

Option XX XX XX XX XX

Hotel Option

Deflection

Video Adjust 1

Video Adjust 2

Video Adjust 3

Video Adjust 4

YC Delay

Others

Bus Stop Off

CHECKSUM 0000

G2 Adjust

RESET

T-SIXPEANM-1000.0 2008/10/08

Troubleshooting

4-16 Samsung Electronics

4-2-3 Factory Data

1. Option

No Item Selection Initial Data

1Video mute 100msec~1000msec/Off 600msec

2System CL/CP/CT-N CL

3AV Jack 1RCA/2RCA/2RCA+DVD/1SCART 1RCA

4Sound Line Stereo / MONO MONO

5High Deviation ON/Off On

6Volume Curve Large/Small Large

7Initial Lang English/Spain/Portugal/France By Country

8LangGroup NTSC SA/Philippine NTSC SA

9Close Caption ON/Off On

10 ExtBandPass On/Off Off

11 V-Guard On/Off On

12 AV OUT SEL CVBS2/CVBS3 CVBS2

13 DNIe Jr On/Off Off

2. Hotel Option

No Item Selection Initial Data

1Hotel Mode On/Off Off

2Power On Band Air/STD Air

3Power On Channel 0~99 3

4Power on volume 0~100 10

5MaxVolume 0~100 100

6Pannel Button Lock On/Off Off

7Power On Source Off/TV/AV1/AV2/DVD Off

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

Troubleshooting

Samsung Electronics 4-17

Troubleshooting

4-18 Samsung Electronics

3. Deflection

No Item Data Initial value Remarks

1V Amp Adjust 30

2V Shift Adjust 39

3H EW Adjust 39

4H Shift Adjust 33

5V Linearity FIX 25

6V S-Correction FIX 29

7V Slope FIX 45

8V Scroll FIX 22

9V Zoom FIX 17 AV Horizontal Line/

V-AMP Margin

10 H Parabola Adjust 35

11 Upper Corner Adjust 45

12 Lower Corner Adjust 45

13 H Trapezium Adjust 30

14 Bow Adjust 28

15 Angle Adjust 25

4. Video Adjust 1

No Item Data Initial value Remarks

1RCutoff Adjust 32

2GCutoff FIX 32

3 B Cutoff Adjust 32

4RDrive Adjust 32

5GDrive FIX 32

6 B Drive Adjust 32

7 Sub Bright Adjust 10

8 Sub Contrast Adjust 15

9 Bluescreen Contrast Adjust 15

10 G2AdjustBright FIX 45 9TR

11 AKB Option FIX 0

12 Cathode Drive Level FIX 10 W/B adjust Margin

Troubleshooting

Samsung Electronics 4-19

5. Video Adjust 2

No Item Data Initial value Remarks

1 PAL/SECAM Sub Color FIX 10

2 NTSC Sub Color FIX 14

3 NTSC Sub Tint FIX 17

4YUVSubTintRF FIX 32

5 YUV Sub Tint AV FIX 35

6YUVSubTintRGB FIX 32

7 Soft Clipping Level FIX 0 9TR

8 Peak White Limit FIX 6 9TR

9 SECAM B-Y Offset FIX 1

10 Peaking CF0 & Delay Mode FIX 0

11 Sub Sharpness FIX 23

12 VideoDependentCoringRF FIX 3 Video S/N

13 Video Dependent Coring AV FIX 3

6. Video Adjust 3

No Item Data Initial value Remarks

1RFAGC Adjust 30 AGCVoltage

2IFAGCSpeed FIX 1

3 IF Demodulator FIX 38

4 Fast Filter IF PLL FIX 0

5RFFOA/FOB FIX 0 VCRRFoutput

6 AV FOA/FOB FIX 0

7RFPA/NTIdentSensitivit FIX 2

8 AV PA/NT Ident Sensitivit FIX 2

Troubleshooting

4-20 Samsung Electronics

7. Video Adjust 4

No Item Data Initial value Remarks

1 Bypass of Chroma Base Band FIX 0 0: active 1:

bypassed

2FixedBeamCurrent FIX 0

3FixedBeamCurrent1 FIX 0

4Forced Colour On FIX 0 0: off

1: on

5 Beam Current Limiting FIX 0

6 Chroma Trap Mode FIX 0

7 EHT Tracking Mode FIX 1 0: only on vertical

1: on vertical and EW

8ComponentRcutoff FIX 32 Scart W/B

9ComponentGcutoff FIX 32 Scart W/B

10 ComponentB cutoff FIX 32 Scart W/B

11 RGBBlankingMode FIX 1 Secam Blanking

12 Wide Blanking Front FIX 0

13 WideBlankingRear FIX 6

8. YC Delay

No Item Data Initial value Remarks

1 PAL Delay FIX 12

2 SECAM Delay FIX 12

3 NTSC Delay FIX 12

4 PAL AV Delay FIX 12

5 SECAM AV Delay FIX 12

6 NTSC AV Delay FIX 12

Troubleshooting

Samsung Electronics 4-21

9. Others

No Item Data Initial value Remarks

1Service Blanking FIX 0 0: off

1: on

2Black Area FIX 1

3Black Stretch FIX 2

0: not active

1:active-15IRE

2:active-30IRE

4Blue Stretch FIX 0

5NoRedReduction FIX 1

6OSD Brightness FIX 15

7PWL Active FIX 1 0: not active

1: active

8Bypass Peaking Delay FIX 0 0: normai operation

1:peaking delay bypassed

9RatioPre&AfterShoot FIX 2

10 Ratioposi&NegaPeaks FIX 2

11 Dynamic Skin FIX 0 0 : 123 degree

1: 117 degree

12 Gamma&WhiteStretch FIX 1 0~3

13 DCTransferRatio FIX 1 0: No black level shift

1: black level shift

14 NTSCMatrix FIX 0 0:Japanesematrix

1:USAmatrix

15 DCXO Cap FIX 2 0~3

Troubleshooting

4-22 Samsung Electronics

4-2-4 Service Adjustment

1. Adjusting the Picture Size

Since the KSBA chassis includes a deflection adjustment of the Factory Data, adjustments must be performed according to the

following procedures when replacing the Main Board.

1 Display the Lion pattern.

2. Press “Power Off

→

Mute

→

Power On” using the remote control and enter Factory Mode.

3. Enter Deflection Mode.

4. Adjust the V-AMP, V-SHIFT, H-EW and H-SHIFT items so that the width becomes 92 and the height becomes 92.

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