Agilent Technologies 35670-90066 manual • Press the following keys

Models: 35670-90066

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Agilent 35670A

Troubleshooting the Analyzer

 

To troubleshoot tachometer failures

Step 2. Check the tachometer range function.

G

Set the oscilloscope for 20 s/div.

Press the following keys:

[ Rtn ]

 

[ LOOP MODE OFF ]

[ Rtn ]

 

[ SERVICE TESTS ]

 

[ SPCL TEST MODES ]

 

[ SOURCE LEVEL ]

[

Source ]

 

[ SOURCE ON ]

 

 

[ LEVEL ]

 

 

500

 

 

[ mVpk ]

[ Trigger ]

[ TACHOMETR SETUP ] [ TRG RANGE +/20 ]

Check that the oscilloscope displays a dc voltage of approximately 4 Vdc.

Press [ TRG RANGE +/ 4 ].

Check that the oscilloscope displays a 4 0.4 Vp-p, 10.24 kHz sine wave,

 

with 2 ±0.2 Vdc offset.

If the signal is incorrect, the A10 Rear Panel assembly is probably faulty.

If the signal is correct, the A6 Digital assembly is probably faulty.

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Page 247
Image 247
Agilent Technologies 35670-90066 manual • Press the following keys