Disassembly And Reassembly - Samsung SYNCM.400B Service Manual

4 Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the
CKA42*7L/5227L monitors.
WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling
these components.
4-1 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.
4-1-1 Cabinet Disassembly
1. With a pad beneath it, stand the monitor on its
front with the screen facing downward and
the base closest to you. Make sure nothing will
damage the screen.
2. Press in the tab on the Cabinet Bottom and
pull the Tilt and Swivel Base upward to
remove it.
3. Working from the back of the monitor, remove
the four screws and remove the Rear Cover.
4. Using pinch-nose pliers or long-nose pliers,
carefully disconnect the Anode Cap from the
CRT.
Caution: Do not touch the anode contact on
the CRT.
4-1-2 Removing the CRT Socket PCB
1. Complete all previous steps.
2. Disconnect CRT and Main PCB ground wires
on CRT Socket PCB and Shield Cover.
3. Desolder the 5 tabs on the underside of the
CRT Socket PCB shield and remove the CRT
Socket PCB Shield.
4. Using a knife, cut through the silicone bond
and lift off the CRT Socket PCB.
5. Disconnect connectors CN102 and two ground
wires on the CRT Socket PCB.
CKA42*7L/5227L
4-1-3 Removing the Main PCB
1. Complete all previous steps.
2. Disconnect Degaussing Coil at the CN601
connector on the Main PCB.
3. Disconnect all easily accessible ground wires
on the Main PCB and Chassis Bottom.
4. Disconnect the DY connector between the DY
and the CN301, CN302, CN502 and CN503
connector on the Main PCB.
5. Remove the screws on the back and along
each side of the Chassis Bottom.
6. Carefully lift the Main PCB Ass'y.
7. Remove all other ground wires.
4-1-4 CRT Ass'y Disassembly
1. Complete all previous steps.
2. Straighten the Degaussing Coil Assembly
coated metal ties and lift Coil Ass'y from the
CRT.
3. Remove the four corner screws and lift the
CRT up and away from the Front Cover
Assembly and place it on a padded surface.
Caution: Do not lift the CRT by the neck.
If you will be returning this CRT to
the monitor, be sure to place the CRT
face downward on a protective pad.
4-1