Removal and Installation Procedures
MTG100 & MTG300 MPEG Generator Service Manual 6Ć37
Procedure for Board Modules and CPU Unit
Perform the Access Procedure (on page 6-17) before performing any procedure
in this group. The procedures are presented in the order listed:
A10 Main Board
A40 MISC (Power Distribution & Interface) Board
CPU Unit
CPU Board
A20 Interface Board
LAN Board
Backplane
1. Assemble equipment and locate modules to be removed:
a. You need a screwdriver with a size Phillips #2 tip (Items 1 and 3).
b. Locate the modules to be removed in the locator diagram Board modules
and CPU unit, Figure 6-4, page 6-15.
2. Orient the instrument: Set the MPEG generator so its bottom is down on the
work surface and its front is facing you.
3. Remove the A10 Main Board:
a. Unplug these cables. See Figure 6-18 as a guide.
The cables from the A20 Interface board at J0602 and J0600.
The cables from the data hard disk drive at J2100 and J2300.
The cable from the A40 MISC (Power Distribution & Interface)
board at J0740.
The cables from the ECL CONTROL connector at J3702 and
ECL/TTL/LVDS OUT connector at J4004.
The coaxial cables from the SSI OUT connector at J4000, the ASI
OUT connector at J4002 and the EXT 27 MHz REF IN connector at
J3700.
b. Using a screwdriver with a size Phillips #2 tip, remove the six screws
securing the A10 Main board to the chassis.
c. Lift the board up and away from the chassis to complete the removal.

A10 Main Board