14 Installation Note E4406-90278
Installation Procedure
Step 10. Reattach the Front Frame Assembly
1. Place the front frame assembly in front of the deck.
2. Refer to Figure 6. Connect the ribbon cable (3) to the A3 front panel interface board if it became
disconnected.
3. Position the connector of front external trigger input (green coaxial cable) through the front frame.
4. Using the 9/16” socket, replace the nut to secure the connector to the front frame. Torque to 21
inch pounds.
5. If the instruments has Base Band I/Q inputs (Option B7C), position the connectors of the I/Q
inputs through the front frame. Using the 9/16” socket, replace the nuts to secure the connectors to
the front frame and torque to 21 inch pounds. The position of the I/Q input cables on the front
panel are as follows:
6. Clip the green external trigger coaxial cable and Base Band I/Q input cables (if present) into the
two original cable clamps positioned on the front frame shield.
7. Position the front frame on the deck using the alignment bosses on the deck (5). Remember to
tuck the ribbon cable under the fans when pushing the frame onto the deck. This will insure proper
airflow to cool the instrument. Using the T-10 driver, replace the 6 screws (1) that secure the front
frame to the deck. Torque to 9 inch pounds.
8. Ensure that the green external trigger coaxial cable is securely run through the gap between the
fans. Also, ensure that the external trigger table is tightly secured so that there is no possibility that
it can be caught in the fans. The external trigger cable may be routed through the base band I/Q clip
instead of the bottom clip, in order to reduce the slack in the cable.
Cable Position Cable ID Part Number
I Top 12 E4406-60161
Q Second from top 14 E4406-60163
I-not Second from bottom 13 E4406-60162
Q-not Bottom 15 E4406-60164
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