Samsung PN19MT-MO-IO, PN19MT9U Disassemble

3 Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the PN19MT/MO/IO/x178/19P2 monitors.

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

3-1 Disassembly (PN19M*/PN19IO)

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

2. To remove the Rear Cover, you must use the special opening jig tool.

3-1-1 Before making Disassembly

1.Disconnect or 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.

3-1-2 Cabinet Disassembly

1.Remove the Stand from the monitor. (Refer to Stand manual)

2.Remove 2 screws on the Rear cover.

Figure 1

3.Incline the monitor by lifting the rear of the monitor.

Figure 2

4.Push the Opening jig each groove along the top of the monitor till it makes a “ttak” sound. (2 grooves : Left and Right, Make sure each snap is disengaged.)

Figure 3

5. Pull the Rear Cover up off the monitor.

Figure 4

6. Remove 3 screws on the Back Shield.

Figure 5

PN19MT/MO/IO	3-1
x178/19P2

3 Disassembly and Reassembly

7.Using pinch-nose pliers or ling-nose pliers, acrefully disconnect the Anode Cap from the CRT.

Warning: Do not touch the Anode contact on the CRT (High Voltage may remain).

3-1-3 Removing the CRT Socket PCB

1.Complete all previous steps.

2.Lift up the Video Spring and remove the CRT Socket PCB from the CRT.

Figure 6

Figure 7

6.Disconnect the Tilt connector at the CN304 connector on the Main PCB.

7.Disconnect the Sub PCB connector at the CN203 connector on the Main PCB.

8.Remove the screws on the back and along each side of the Bottom Chassis.

9.Carefully lift the Main PCB Ass’y and remove the remaining ground wires.

10.Place the Main PCB Ass’y on a flat, level surface that is protected from static electricity.

3.Disconnect all connectors on the CRT Socket PCB.

4.Using a solder iron, disconnect Ground (GND) on the back of the Video Shield and remove the Shield Cap.

5.Remove the screw on the front of the Shield Socket.

6.Desolder the 4 tabs on the CRT Socket PCB and remove Shield.

7.Place the Video PCB on a flat, level surface that is protected from static electricity.

3-1-4 Removing the Main PCB

1.Complete all previous steps.

2.Disconnect the Degaussing Coil at GT601 and GT602 on the Main PCB.

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

4.Disconnect the DY connector at the CN303 connector on the Main .

5.Using the jig, release the snaps (2) connecting the Front Cover and the PCB then lift up the Bottom to separate the two Shield.

3-2 Reassembly

3-1-5 CRT Ass’y Disassembly

1.Complete all previous steps.

2.Remove the four corner screws.

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

4.Disconnect the Degaussing Coil Assembly coated metal ties.

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.

Reassembly procedures are in the reverse order of Disassembly procedures.

3-2	PN19MT/MO/IO
	x178/19P2