Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung Monitor Monitor SYNCMASTER 1200NF 1200NF 1200NF[3]

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3 Disassembly and Reassembly
This section of the service manual describes the disassembly and reassembly procedures for the
PN22N* monitors.
WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling
         these components.

3-1 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.

3-1-1 Before making Disassembly
1. Disconnector signal cable and power cord
   from the monitor.
2. With a pad beneath it, stand the monitor on its
   front with the screen facing downward and
   the base close to you.
3. Make sure nothing will damage the screen.

3-1-2 Cabinet Disassembly
1. With a pad beneath it, stand the monitor on its
   front with the screen facing downward and
                                                                              Figure 2
   the base closest to you. Make sure nothing will
   damage the screen.                                   3-1-3 Removing the Top Shield
2. Remove the Stand from the monitor.                      Remove the 9 screws on the top shield cover
   (Refer to Stand manual)                                 and remove the shield.
3. Incline the monitor by lifting the rear of the
   monitor.
4. Take out the screw caps on left/right top of
   monitor.




                                                                              Figure 3

                                                        3-1-4 Removing the Power PCB Assembly
                                                              and the Power PCB
                                                        1. Remove the 3 screws on the Power Assembly
                    Figure 1                               shield.
5. Unscrew (4) and take the Rear Cover apart.
                                                        2. Disconnect CN603, CN604, CN602, CN881 and
                                                           wire of clamp holder and then CN601 from
                                                           PCB Assembly shield.
                                                        3. Remove the 2 screws on the PCB Assembly
                                                           rear shield and remove the shield
                                                        4. Remove the 4 screws on the PCB Assembly.


PN22N*                                                                                               3-1
3 Disassembly and Reassembly

3-1-5 Removing the BNC PCB Assembly and
      the BNC PCB
1. Disconnect CN801, CN802, CN803, CN804,
   CN202, CN204, CN205 on the BNC PCB
   Assembly shield and remove the shield.
2. Remove the 2 screws from PCB Assembly
   shield outside.
3. Remove the 2 cable ties, disconnect CN10 on
   the small PCB Assembly.
4. Remove the 7 screws from PCB Assembly and
   remove the PCB Assembly.


3-1-6 Removing the Video PCB Assembly
      and the Video PCB
1. Disconnect 2 wires from BNC Assembly shield
   and remove Video Assembly from the CRT
   neck.
2. Disconnect 3 wires from Main PCB Assembly
   and wires of clamp holder.
3. Desolder the 4 points on the video rear shield
   and remove the shield.
4. Remove the 3 screws on the Video Assembly
   shield inside and remove the shield from
   Video PCB.

3-1-7 Removing the Main PCB Assembly
        and the Main PCB
1. Remove chassis ground wire on the lift side.
2. Remove the 4 screws on the Bottom shield.
3. Disconnect CN901, CNS211, CNS201, H_DY,
   V_DY and anode cap on the Main PCB
   Assembly.
4. Remove 5 screws on the Main PCB.

3-1-8 Removing the Bracket
      Remove the 10 screws on the Front Cabinet.




3-2 Reassembly

Reassembly procedures are in the reverse order of Disassembly procedures.




3-2                                                                         PN22N*

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