50 Installation Note N5247-90113
Installation Procedure for the Upgrade
-
Step 20. Reinstall the A23 Test Set Motherboard
For instructions, click the Chapter 7 bookmark “Removing and Replacing the
A23 Test Set Motherboard” in the PDF Service Guide
1
.
You will install the rest of the ports 1 through 4 switch, receiver attenuator, and
source attenuator cables to the test set motherboard in the next step. Proceed
to
“Step 21. Install the A71 and 74 Bias-Tee Combiner’s Gray Low Frequency
Extension (LFE) DC Bias Cables and Route Cables” on page 51
1. See
“Downloading the Online PNA Service Guide” on page 8
IMPORTANT!
Use the N5240-60089 ribbon cable from this kit in lieu of
ribbon cable N5242-60004. Refer to
STOP!
Do not install the port 1 through 4 switch, receiver attenuator, and
source attenuator cables to the test set motherboard J101 though J104
connectors until the next step. Refer to
“Step 21. Install the A71 and 74
Bias-Tee Combiner’s Gray Low Frequency Extension (LFE) DC Bias Cables
.
Summary of Contents for N5247-60113
Page 3: ...3 ...
Page 4: ...4 ...
Page 66: ...66 Installation Note N5247 90113 Installation Procedure for the Upgrade ...
Page 67: ...Installation Note N5247 90113 67 Installation Procedure for the Upgrade ...
Page 68: ...68 Installation Note N5247 90113 Installation Procedure for the Upgrade ...