Samsung CL21B501HLMXZS Manual de usuario

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

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.

GSPN (Global Service Partner Network)

Area Web Site

North America service.samsungportal.com

Latin America latin.samsungportal.com

CIS cis.samsungportal.com

Europe europe.samsungportal.com

China china.samsungportal.com

Asia asia.samsungportal.com

Mideast & Africa mea.samsungportal.com

Printed in Korea

AA82-05984A

Table of Contents

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

2. Product Specification

2-1 Product Specification...................................................................................................................................................2-1

2-2 Specifications Analysis ................................................................................................................................................2-2

2-3 Accessories .................................................................................................................................................................2-3

3. Disassembly & Reassembly

3-1 Overall Disassembly & Reassembly............................................................................................................................3-1

4. Troubleshooting

4-1 Troubleshooting ...........................................................................................................................................................4-1

4-2 Adjustment...................................................................................................................................................................4-14

5. Exploded View & Part List

5-1 CL21B501HLMXZS Exploded View ............................................................................................................................5-1

5-2 CL21B501HLMXZS Electrical Part List .......................................................................................................................5-3

6. Wiring Diagram

6-1 Overall Wiring ..............................................................................................................................................................6-1

6-2 Pin Connection ............................................................................................................................................................6-2

7. Schematic Diagram

7-1 Circuit Description .......................................................................................................................................................7-1

7-2 Schematic Diagram .....................................................................................................................................................7-5

Disassembly & Reassembly

Samsung Electronics 3-1

3. Disassembly & Reassembly

3-1 Overall Disassembly & Reassembly

3-1-1 Disassembling the Cabinet

Part Name Description Description Photo

Back

Cover

①

Remove the 7 screws fixing the Back

Cover & Terminal Board.

: RH,+,-,2S,M3,L6,ZPC(WHT),

SWRCH18A,-

②

Tap the Back Cover 2 or 3 times and pull

the cover and remove it.

Since there is a danger of injury from

the remaining current and of damaging

the product due to static electricity,

make sure to remove the power

cord and wait for a moment so that

the remaining current is discharged

completely before disassembling the

product.

Disassembly & Reassembly

3-2 Samsung Electronics

3-1-2 Disassembling the CRT and Chassis

Part Name Description Description Photo

Chassis

Holder

①

Separate the Ass’y Holder chassis from the Front

Cabinet.

②

Pull the Holder Chassis while pushing the catch up.



If you pull it with excessive power, it may cause

damage to the catch or connector.Therefore, pull it until

the catch is out of the hole.

Pull the chassis while pushing the

clip fixing the Front Cabinet and

the Holder Chassis.

①

Separate the CRT connection, the TBC wire,and the

the speaker connection.

Since there is a hinge fixing the Wire Connector and

Connector Header, if the wire is pulled with excessive

power, it may damage the catch or connector.

Therefore, pull it only after pressing the hinge down

completely.

Pull the chassis while pushing the

clip fixing the Front Cabinet and

the Holder Chassis.

①

Separate the D-Coil, DY-Cable and power cord from

the Front Cabinet and Main Board.

②

Separate the power cord, DY-Cable by pushing the

fixing catch to the side and pulling the wire up.

Pull the chassis while pushing the

clip fixing the Front Cabinet and

the Holder Chassis.

①

Separate the CRT Ass’y from the CRT.

②

Separate the TBC wire, GND cables from the CRT

Ass’y sequentially.

Pull the chassis while pushing the

clip fixing the Front Cabinet and

the Holder Chassis.

Disassembly & Reassembly

Samsung Electronics 3-3

Part Name Description Description Photo

Chassis

Holder

①

Separate the cable connecting the FBT and CRT from

the CRT.



Since a high voltage current resides inside the CRT, do

not to touch the CRT hole with metal or your body when

separating the cable.

3-1-3 Disassembling the CRT Ass’y

Part Name Description Description Photo

CRT

Ass’y

①

Separate the cables connecting the Main Ass’y and the

CRT Ass’y.

Pull the wires while

pressing on the fixing clip.

①

Separate the wires from the FBT of the Main Board and

the CRT Ass’y.

②

To separate thick wire, pull the wires while pressing the

push-type clip at the connector.



Take care when separating the wires because pulling

the wires by force may damage the socket. In addition,

separate the wires on a flat and clean surface so as to

prevent scratching of the material and the PCB.

Pull the wires while

pressing on the fixing clip.

MEMO

3-4 Samsung Electronics

Troubleshooting

Samsung Electronics 4-1

4. Troubleshooting

4-1 Troubleshooting

4-1-1 First Checklist for Troubleshooting

1. Power LED: Check that the LED works when the power cord is connected to a 90-264 wall outlet.

2. LED Indicators: See table 4-1-2 Basic Troubleshooting: LED Diagnosis on the Front Panel.

3. In case of a power failure or abnormal screen, check the following items.

①

Check that the power cord is correctly connected to a 90-264 wall outlet.

②

Check that the Master Switch has been pressed.

③

Ch eck that the transmitter is turned on.

④

Check that transmitter device selection is set to TV.

⑤

Check that the signal cable is properly connected.

⑥

Check that channel setting has been set.

Troubleshooting

4-2 Samsung Electronics

4-1-2 Checkpoints by Error Mode

1. Troubleshooting Summary

Problem Solution

The power does not turn on. Check if the power cord is properly connected.

Air broadcasting does not work. Check if the antenna is properly installed.

Cable broadcasting does not work. Subscribe to a local cable broadcasting firm and get support.

Satellite broadcasting does not work Install a satellite antenna (Parabola) and connect it to the TV.

2. Menu & Remote Control

Problem Solution

The remote control does not work.

■ PresstheSelectDevicebuttontoselecttheTVorexternaldevice.

■ Replacethebatteryoftheremotecontrolwithanewone.

■ Insertthebatterymakingsurethepolarity(+,-)iscorrect.

■ Checkiftheangleorthedistanceissufficient,orifthereisany

interference between the product and the remote control.

■ Makesuretheuserhaspressedthecorrectbutton.

■ ToavoiddirectsunlighttothereceivingpaneloftheTV,removeany

indoor lighting or change the location of the TV.

■ CheckifthepowerswitchatthebackleftoftheTVisturnedon..

Cannot change the channel with the remote control.

■ PresstheSelectDevicebuttontoselecttheTV.

■ Changethechannelusingtheremotecontrolofthecableorsatellite

receiver.

Cannot select an A/V channel.

Press the source button and check if the AV item is grayed out. When the

AV item is grayed out, you cannot select an A/V channel. Check if the

connector is properly connected.

Cannot select a menu. Check if the menu is grayed out. If a menu is grayed out, it cannot be

selected.

Troubleshooting

Samsung Electronics 4-3

3. Screen

Problem Solution

The screen is black and there is no sound.

■ Checkifthepowercordisproperlyconnected.

■ Turnonthepower.

■ SelectanAVchannelthatcorrespondstotheexternaldevice.

Only the screen is blank/it is dark or too bright. Adjust the screen brightness.

Thescreenisblue/theexternalchannelisnot

displayed.

■ Checkiftheconnectorisproperlyinstalled.

■ SelectanAVchannelthatcorrespondstotheexternaldevice.

The screen overlaps (double/triple). ■ Checkiftheantennaisproperlyinstalled.

■ Adjusttheposition,angleordirectionoftheantenna.

The screen is snowy or unclear. The picture quality

gets worse when it is windy

■ Checkiftheantennahasbeenbentormovedbythewind.

■ Checktheantennaforitslifetime.

(Normally 3 - 5 years, 1-2 years near the coast)

Dotted or semi-dotted lines are displayed on the

screen.

Install the antenna as far away from the road as possible.

The screen is black and white. ■ Adjustthecolordensity.

■ Checkiftheconnectorisproperlyinstalled.

The colors of the screen are odd/strange. Adjust the color tones.

Unusual lines appear on the screen. Keep the antenna away from the power cord or connectors if possible.

Unusual lines appear on the screen when watching

or recording to video.

Keep the video player as far away from the TV as possible.

4. Sound

Problem Solution

There is no sound. ■ Increasethevolume.

■ PresstheMutebutton.

The sound is very low. ■ Increasethevolume.

■ SettheautovolumecontroltoON.

There is a lot of noise. Keep the antenna away from the power cord or connectors if possible.

The selected language does not appear. PresstheMultiplexbuttontoselecttheTV.

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