Step 1: Checking The E8491A Serial Number - Agilent Technologies E5023U Upgrade Manual

Upgrade Procedure

Step 1: Checking the E8491A serial number

Step 1: Checking the E8491A serial number
If the serial number of the E8491A IEEE-1394 PC Link to VXI is US39000231 and below,
the modification is required.
remove clamping diodes CR401, CR402,
Open the side cover of the E8491 and
CR403 and CR404 using a soldering iron.
See the service note E8491-01 in the next page.
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