Samsung CL-21Z43ML User manual

SERVICE
Manual
COLOR TELEVISION
Chassis: KSBE(N)_Manaslu
Model : CL21Z43MLAXXAO
COLOR TELEVISION CONTENTS
1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
7. Schematic Diagram
CL-21Z43ML

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 CL21Z43MLAXXAO Exploded View............................................................................................................................5-1
5-2 CL21Z43MLAXXAO Electrical Part List.......................................................................................................................5-3
6. Wiring Diagram
6-1 Overall Wiring ..............................................................................................................................................................6-1
6-2 Pin Connection ............................................................................................................................................................6-3
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 9 screws fixing the Back
Cover & Terminal Board. : RH, +, M4,
L15,ZPC(BLK), 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

Wiring Diagram
Samsung Electronics 6-1
6. Wiring Diagram
6-1 Overall Wiring

Wiring Diagram
6-2 Samsung Electronics
※ The code number of cable(Lead-connector) can be changed, see “5. Exploded View & Part List.”
Use
① CRT Board ↔ Main Board ② Power Code ③ Speaker Wire
Code AA39-20620B AA96-20109B AA96-04766A
Photo

Wiring Diagram
Samsung Electronics 6-3
6-2 Pin Connection
MAIN BK
GK
RK
GND
12V
H/T
200V
B+5V
CN501A
TO CRT
R+
R-
GND
L+
L-
CN602
TO EARPHONE
R+
R-
L+
L-
CN601
TO SPK
T
U
N
E
R
GND
AV
GND
AV L
GND
AV R
GND
CN702
TO AV
CRT
BK
GK
RK
GND
12V
H/T
200V
B+5V
CN501
TO MAIN

Wiring Diagram
6-4 Samsung Electronics
6-2-1 Main Board Connector Pin
CN602
EARPHONE connection
Pin No. Pin Name
1 R+
2 R-
3 GND
4 L+
5 L-
CN601
TO SPK
Pin No. Pin Name
1 R+
2 R-
3 L+
4 L-
CN501
CRT Board connection
Pin No. Pin Name
1 BK
2 GK
3 RK
4 GND
5 12V
6 H/T
7 200V
8 B+5V
CN501A
CRT Board connection
Pin No. Pin Name
1 B
2 G
3 R
4 GND
5 12V
6 GND
7 HEATER
8 200V
9 B+5V
CN701
Side-AV connection
Pin No. Pin Name
1 AV Video In
2 GND
3 AV L In
4 GND
5 AV R In
6 GND

Wiring Diagram
Samsung Electronics 6-5
6-2-2 Connector role
Loc. No. Description
CN501 Main Board and CRT Board connect
CN602 Main Board and Side-AV to E-Phone connect
CN701 Main Board and Side-AV connect
CN601 Main Board and Speaker connect

MEMO
6-6 Samsung Electronics

Schematic Diagram
Samsung Electronics 7-1
7. Schematic Diagram
7-1 Circuit Description
7-1-1 Overall Block Description

Schematic Diagram
7-2 Samsung Electronics
7-1-2 Power Signal

Schematic Diagram
Samsung Electronics 7-3
7-1-3 Partial Block Diagram
1. Main Block Description

MEMO
7-4 Samsung Electronics

Schematic Diagram
Samsung Electronics 7-5
TP06
TP05
7-2 Schematic Diagram
7-2-1 Main Board
This Document can not be used without Samsung’s authorization.
TP06
Power
Video
Audio
TP05

Schematic Diagram
7-6 Samsung Electronics
7-2-2 Sound
This Document can not be used without Samsung’s authorization.
Power
Video
Audio

Schematic Diagram
Samsung Electronics 7-7
TP02
7-2-3 Power
This Document can not be used without Samsung’s authorization.
Power
Video
Audio
TP02

Schematic Diagram
7-8 Samsung Electronics
7-2-4 CRT
This Document can not be used without Samsung’s authorization.
Power
Video
Audio