Troubleshooting/Service 
7.9 Software Upgrades 
Introduction 
This procedure enables software features that were not ordered from the factory.  See 
Table 8-3 for a list of the available Software Upgrades. 
ATTENTION: 
This procedure cannot be undone, it is a one-way process. 
Each instrument has a unique code number sequence, so the following procedure 
must be performed on each instrument to be upgraded. 
Table 7-16 explains how to enable new software features. 
Table 7-16  Software Upgrades 
Step  What to do 
1 
Turn off the power to the instrument for at least five seconds. 
2 
Turn the power back on and simultaneously press the FUNCTION and 
 
keys.  This must be done while “TEST DONE” is being displayed. 
3 
If step 2 was performed correctly, the instrument will now display “UDC” 
[Upper] “UPDATE” [Lower]. 
4 
Press the Function Key.  The instrument will now display DISABLE [Upper]  
“RESTORE” [Lower]. 
5 
Press the 
 key.  The instrument will now display “CONFIG” [Upper]  
“RESTORE” [Lower]. 
6 
Press the 
 Key.  The instrument will now display OPTIONS [Upper]  
“RESTORE” [Lower].   
7  Press the FUNCTION Key.  The instrument will now display “XXXX” [Upper] 
“ENTER1” [Lower], where XXXX is a unique code number for this particular 
instrument.  Write this number down. 
8  Press the FUNCTION Key.  The instrument will now display “XXXX” 
“ENTER2”.  Write this number down. 
9  Press the FUNCTION Key.  The instrument will now display “XXXX” 
“ENTER3”.  Write this number down. 
10 
Write down the Model and Serial Numbers of your instrument. 
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