3M 7620-T-95 VCR User Manual


 
4 78-8113-5098-8 Rev F
3.0 Install Ground Braid
3.1 Position pre-formed ground braid with short tail over tape shield directly adjacent to cable jacket cut edge.
PLEASE NOTE: The ground braid needs to make full contact with the metallic tape shield. Position long tail of
ground braid, extending over cable jacket with solder block over Scotch
®
Mastic Sealing Strip 2230 (Figure 2).
Secure ground braid to cable jacket 3 1/2" (89 mm) from cable semi-con edge using vinyl tape (Figure 2).
NOTE: Position vinyl tape with care, it also serves as a marker for positioning the termination.
Tape Shield
Ground Braid
Cable Jacket Edge
Vinyl Tape Marker
Semi-Con Edge
Solder Block
1
ST
Scotch
®
Mastic Sealing Strip 2230
3 1/2" (89 mm)
Figure 2
3.2 Wrap ground braid around cable tape shield one complete wrap, trim excess to prevent overlap and secure in
place with constant force spring. Wrap spring in same direction as ground braid (Figure 3). Cinch (tighten) the
spring after wrapping the final winding.
3.3 Select second Scotch
®
Mastic Sealing Strip 2230 from kit and remove white release liners. Apply a second
SINGLE WRAP of mastic over solder block on ground braid and previously applied mastic (Figure 3).
Cut off excess.
Tape Shield
Constant Force Spring
Ground Braid
1
ST
Scotch
®
Mastic Sealing Strip 2230
Solder Block
2
ST
Scotch
®
Mastic Sealing Strip 2230
Ground Braid Leg
Trim
Cable
Tape
Shield
Figure 3