Samsung CKG7507 Disassemble

5-1-1 Cabinet Disassembly

1. With a pad beneath it, stand the monitor on its
front with the screen facing downward and
the base close to you. Make sure nothing will
damage the screen.

2. Working from the back of the monitor, remove
the 4 screws and carefully pull the rear cabinet
up and off the monitor.

3. Remove the 4 screws on the Bottom Cover and
pull it upward to remove it.

4. Remove the 16 screws on the Top Shield and
remove it.

5. Using pinch-nosed pliers or long-nosed pliers,
carefully disconnect the Anode Cap from the
CRT.

5-1-2 Removing the Video PCB

1. Follow steps 1 through 5 in “Cabinet
Disassembly,” above.

2. Disconnect connectors CN102, CN105 and
CN106 on the Video PCB.

3. Remove both side screws on the lower edge of
the Video PCB Ass’y and the screw on the
signal connector and pull the assembly
towards you to remove it.

4. Remove all screws on the Video PCB Ass’y
and remove the Video Shield.

5. Lift out the Video PCB and place it on a flat,
level surface that is protected from static
electricity.

5-1-3 Removing the CRT Socket PCB

1. Follow steps 1 through 5 in “Cabinet
Disassembly,” and steps 1 through 5 in
“Removing the Video PCB,” above.

2. Disconnect connectors CN13 and CN14 on the
CRT Socket PCB.

3. Lift off the CRT Socket PCB Ass’y.

4. Hold the CRT Socket PCB Ass’y while you lift
the cap on the CRT Socket and pull out the
two focus wires.

5-1-4 Removing the Main PCB

1. Follow steps 1 through 5 in “Cabinet
Disassembly,” steps 1 through 5 in “Removing
the Video PCB,” and steps 1 through 4 in
“Removing the CRT Socket PCB,” above.

2. Disconnect the Degaussing Coil at CN602 on
the Main PCB.

3. Disconnect all easily accessible ground wires
from the Main PCB and Bottom Chassis.

4. Disconnect the DY connector between the DY
and the CN301, CN400, CN401 and CN402
connectors on the Main PCB.

5. Remove the 2 screws on the left and right
sides of the PCB Bracket.

6. Carefully lift the Main PCB Ass’y.

7. Disconnect the CN201 on the Main PCB and
LED connector CN702 on the LED PCB.

8. Remove the Power Shaft.

9. Remove the 6 screws on the top side of the
Main PCB.

10. Remove the 2 screws on the Power Inlet
Socket.

11. Lift the Main PCB and place it on a flat, level
surface that is protected from static electricity.

CKG7507L 5-1

5 Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the
CKG7507L monitor.

WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling

these components.

5-1 Disassembly

Cautions:1. Disconnect the monitor from the power source before disassembly.

2. Follow these directions carefully; never use metal instruments to pry apart the cabinet.

5-1-5 CRT Ass’y Disassembly

1. Complete all previous steps.

2. Remove the 4 side screws 2 on the top and 1
on either side of the CRT and lift the CRT Unit
Bracket.

3. Unhook the Degaussing Coil Assembly and
lift it off the CRT.

5-2-1 Replacing the CRT

1. Loop the CRT Ground Assembly around the
back of the CRT and under the 4 corner, metal
ears. Position the corner with the spring last.

2. With the Front Cover Assembly lying face
down on a protective pad, position the CRT so
that the corner metal ears fit properly in the
Front Cover Assembly.

3. Replace the Degaussing Coil Assembly and
secure the Coil with the plastic Degaussing
Coil Holders.

4. Replace the Unit Bracket Ass’y.

5. Replace the 4 corner screws.

5-2-2 Replacing the Main PCB

1. Stand the monitor on its front with the screen
facing downward.

2. Replace the 6 screws on the top side of the
Main PCB and the 2 screws on the power Inlet
Socket.

3. Replace the Power Shaft.

4. Replace connector CN201 on the Main PCB
and Led connector CN702 on the LED PCB.

5. Position the Main PCB Ass’y in the Front
Cabinet and secure it on both sides with the
screws between the Bottom Chassis and CRT
Unit Bracket.

6. Replace the DY connector at the CN301,
CN400, CN401 and CN402 connectors on the
Main PCB.

7. Replace all easily accessible ground wires on
the Main PCB and Bottom Chassis.

4. Lift the CRT up and away from the Front
Cover Assembly and place it on a padded
surface.

Do not lift the CRT by the neck.

Caution: If you will be returning this CRT to

the monitor, be sure to place the CRT
face down on a protective pad.

8. Replace the Degaussing Coil at CN602 on the
Main PCB.

9. Replace the Anode Cap.

5-2-3 Replacing the CRT Socket PCB

1. Hold the CRT Socket PCB Ass’y while you lift
the Cap on the CRT Socket and replace the
two Focus wires.

2. Replace connectors CN13 and CN14 on the
CRT Socket PCB.

3. Reconnect the CRT Socket on the CRT pins at
the plug/Socket junction.

5-2-4 Replacing the Video PCB.

1. Position the Video Shield and replace all
screws.

2. Replace both side screws on the lower edge of
the Video PCB Ass’y and the screw on the
signal connector.

3. Replace connectors CN102, CN105 and CN106
on the Video PCB.

5-2-5 Cabinet Reassembly

1. Complete all previous steps.

2. Position the Top Shield and replace the 12
screws.

3. Replace the 4 screws on the Bottom Cover.

4. Position the Rear Cover making sure that the
tabs along the front edge are properly
snapped in place. Replace the 4 screws.

5. Set the monitor on its Base and make sure that
the CRT faceplate was not scratched or
otherwise damaged.

5 Disassembly and Reassembly

5-2 CKG7507L

5-2 Reassembly

With the CRT facing downward on a protective pad, use the steps that follow to reassemble the monitor.

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