Agilent Technologies 35670-90066 manual Trigger Mode Failing Probable Faulty Assembly or Next Step

	Troubleshooting the Analyzer	Agilent 35670A
	To troubleshoot trigger failures
G	Step 2. Determine the probable faulty assembly or next step by comparing the trigger
	failure to the following table.
	If the trigger failure matches more than one entry in the table, use the entry closest to
	the beginning of the table.
	Trigger Mode Failing	Probable Faulty
		Assembly or Next Step
	All channels and external trigger fail all trigger modes	Step 3
	All channels trigger but external trigger fails all trigger modes	Step 4
	At least one channel or external trigger functions correctly	A5 Analog
	Channel level fails	A5 Analog
	Arm fails
	External trigger fails user level or TTL level
	External trigger fails EXT RANGE	A10 Rear Panel
	Trigger delay fails	A6 Digital

Step 3. Check trigger signal to Digital assembly.

G• Set the power switch to off ( O ).

•Remove the A5 Analog assembly and attach a test clip patch cord to TP 204.

•Connect a logic probe to the patch cord and TP 160 (ground).

•Reinstall the Analog assembly in the card nest with patch cord and probe attached.

•Set the power switch to on ( l ).

•Press the following keys:[[ CALIBRATN ]AUTO CAL OFF ][]System Utility

[ Input ]

[ ALL CHANNELS ]

[ CH* FIXED RANGE ] 1

[ Vpk ]

[ Source ]

[ SOURCE ON ] [ LEVEL ]

[ 1 ]

[ Vpk ]

[ System Utility ]

[ MORE ]

[ SERVICE TESTS ]

[ SPCL TEST MODES ] [ SOURCE LEVEL ]

[ Trigger ]

[ CHANNEL 1 ]

4-64