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Description of the Upgrade
Installation Procedure for the Upgrade
Step 16.Install the Semirigid Test Set Cables
Follow instructions carefully when making cable connections, especially
wire harness connections. Incorrect connections can destroy components,
resulting in additional customer costs.
Be careful not to damage the center pins of the semirigid cables. Some
flexing of the cables may be necessary but do not over-bend them.
Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections
except the front and rear panel bulkhead connectors. On these, use a 9
mm nutsetter or open end torque wrench set to 21 in-lb.
To see an image showing the location of these cables, click the Chapter 6
bookmark "Bottom RF Cables, Standard 4-Port Configuration, Option 400" in
the PDF Service Guide
4. Install the following semirigid cables in the order listed. New parts are
26
1
.
listed in
Table 1 on page
— W50 (N5222-20058) REF 4 RCVR R4 IN to A24 mixer brick (R4)
— W49 (N5222-20057) REF 3 RCVR R3 IN to A24 mixer brick (R3)
— W34 (reuse) (N5242-20062) Port 2 RCVR B IN to A23 mixer brick (B)
— W26 (N5222-20034) A32 port 2 coupler to front-panel Port 2 CPLR
ARM
— W33 (N5222-20055) Port 4 RCVR D IN to A24 mixer brick (D)
— W22 (N5222-20018) A31 port 4 coupler to front-panel Port 4 CPLR
ARM
— W24 (N5222-20053) A32 port 2 coupler to front-panel Port 2 CPLR
THRU
— W20 (N5222-20054) A31 port 4 coupler to front-panel Port 4 CPLR
THRU
— W19 (N5222-20050) A27 port 4 bridge to front-panel Port 4
SOURCE OUT
— W23 (reuse) (N5242-20061) A28 port 2 bridge to front-panel Port 2
SOURCE OUT
— W27 (reuse) (N5242-20079) A28 port 2 bridge to front-panel REF 2
SOURCE OUT
* Secure W27 (N5242-20079) to side of deck with 2x tie wraps
(1400-0249)
"Downloading the Online PNA Service Guide" on page 6
1. See
8.
Installation Note N5242-90015
.
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