March Products 120 III (PC620) user manual MB & Touch Controller Assembly

User Manual version 2503

3.1.3.3. MB & Touch Controller Assembly

Refer to Fig. 3-4. Follow the steps below to assemble the motherboard to the system chassis. Make sure the CPU with cooling fan and SDRAM are already properly installed to the motherboard before the motherboard is attached to the display metal plate.

1.Reverse the display module with the rectangle openings at the right bottom side. From your point of view, the motherboard module is to be installed to the right upper side of the metal plate.

2.Tape the motherboard insulator to the motherboard (C) first. The insulator is to separate the electronic components on the reverse side of the motherboard from the metal plate to prevent short circuitry caused during system operation.

3.Fix the motherboard with an insulator to the chassis with nine PMS M3*6 screws.

4.Fix the touchscreen controller (D) to the lower side of the metal plate with four PMS M3*5 screws.

FIGURE 3-4: FRONT BEZEL MODULE ASSEMBLY

LIBRA 120 III (PC620 Intel 815E) 3-27

PDF created with pdfFactory trial version www.pdffactory.com