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VITS100 NTSC VITS Inserter Instruction Manual
7–9
3. Install the instrument top cover.
This procedure requires a #1 phillips screwdriver and a
9
/
16
inch box end wrench.
Removal. Use the following procedure to remove the inserter circuit board
assembly; see Figure 7–2 for the location of the various components and
fasteners.
1. Remove the instrument top cover.
2. Remove the front panel.
3. Remove the hex nuts on the three BNC connectors that extend through the
rear panel.
4. Unplug the remote connector cable from J27 on the inserter circuit board.
5. Remove the three mounting screws that hold the power supply shield to the
circuit board and lift the shield off of the inserter circuit board.
6. Remove the two screws that hold the line filter (and AC plug) to the rear
panel.
7. Remove the seven screws that hold the inserter circuit board to the bottom
chassis pan.
8. Slide the inserter circuit board forward until the BNC connectors clear the
rear panel. Then lift the board away from the chassis.
Replacement. Use the following procedure to replace the inserter circuit board:
1. Slide the inserter circuit board toward the rear panel until the BNC connec-
tors protrude through the rear panel.
2. Install the seven screws that hold the inserter circuit board onto the bottom
chassis pan.
3. Install the two screws that fasten the line filter to the rear panel.
4. Set the power supply shield in place and install the three screws that hold the
shield onto the inserter circuit board.
5. Plug the remote connector cable (from the rear panel) into J27 on the inserter
circuit board.
6. Install the hex nuts on the three rear-panel BNC connectors.
7. Replace the front panel.
8. Replace the instrument top cover.
Inserter Circuit Board