
36
Installation Note E8364-90023
Install the New Configurable Test Set Cables
CAUTION
Be very careful with these cables with 1.85 mm connectors. They are extremely
delicate and can be easily damaged.
Install 12 bulkhead connectors on the front panel as shown in
.
• Make sure that the hexagonal collar of the connector is on the inside of the front panel and
that it is properly aligned with the recess in the panel.
• Place a washer and a hex nut on each bulkhead connector as shown.
• Using a 5/16-inch torque wrench, tighten the hex nuts to 21 in-lbs.
Using a 5/16-inch torque wrench (set to 10-inch lbs), install the following new cables
in the
order listed
. These new parts are listed in
.
• W71 REFERENCE 2 RCVR R2 IN to A29 channel R2 mixer
Before installing the remaining cables, install the two cable tie mounts in the locations
shown by adhering them to the test set deck directly below cable W71 as shown. Secure
cable W71 to each cable tie mount with a cable tie as shown.
• W70 REFERENCE 1 RCVR R1 IN to A28 channel R1 mixer
• W68 A26 test port 2 coupler to PORT 2 CPLR ARM
• W72 PORT 2 RCVR B IN to A30 channel B mixer
• W62 A24 SOMA 70 to PORT 2 SOURCE OUT
• W64 PORT 2 CPLR THRU to A26 test port 2 coupler
• W66 A24 SOMA 70 to REFERENCE 2 SOURCE OUT
• W67 A25 test port 1 coupler to PORT 1 CPLR ARM
• W69 PORT 1 RCVR A IN to A27 channel A mixer
• W61A23 SOMA 70 to PORT 1 SOURCE OUT
• W63 PORT 1 CPLR THRU to A25 test port 1 coupler
• W65 A23 SOMA 70 to REFERENCE 1 SOURCE OUT
Install the Remaining New Cables
Using a 5/16-inch torque wrench (set to 10-inch lbs), install the following new cables
in the
order listed
. These new parts are listed in
.
• W2
A21 SOMA 50 to A22 switch
• W3
A22 switch to A23 SOMA 70
• W4
A22 switch to A24 SOMA 70
• W38 A23 SOMA 70 to A16 test set motherboard J204 (R1)
• W39 A24 SOMA 70 to A16 test set motherboard J205 (R2)
•
①
Wrapped wire cable; A22 switch to A16 test set motherboard J500. Route this cable
under the cable clamp as shown.
•
②
Ribbon cable; A24 SOMA 70 to A16 test set motherboard J40 (
SOMA70_2
). Shape
and route this cable as shown.