Agilent Technologies 35670-90066 manual Failure Probable Faulty Assembly Next Test, A7 CPU Gpib

Troubleshooting the Analyzer	Agilent 35670A
To perform self tests

Step 3. Determine the probable faulty assembly and next test by comparing the analyzer’s symptoms to the following table.

G	Failure	Probable Faulty			Assembly	Next Test
	Disk drive	A100 Disk Drive				Disk drive, page 4-57
		Flexible disk
		Disk drive cable
		A7 CPU
	GPIB	A10 Rear Panel †
	Serial port	A10		Rear Panel †
	Parallel	A10		Rear Panel †
	External trigger	A10		Rear Panel		Trigger failures, page 4-62
		A5 Analog
	Tachometer	A10		Rear Panel		Tachometer, page 4-24
		A6	Digital
	Source	A5	Analog			Source and calibrator, page 4-45
		A6	Digital
	Autorange	A1/A2 Input				Auto-range, page 4-59
	Overrange	A5	Analog
	External keyboard	A10		F200 fuse		DIN connector, page 4-61
		External Keyboard
		A10		Rear Panel
	External monitor	A7	CPU
	Microphone power	A77		Microphone		Microphone power, page 4-69
	Microphone adapter	A5	Analog
	Performance test					Performance test, page 4-42
	Intermittent failure					Intermittent, page 4-40

†The circuits for the output ports are located on the A10 Rear Panel assembly except for a few output buffers on the A7 CPU assembly. If replacing the A10 Rear Panel assembly does not fix the failure, the A7 CPU assembly is probably faulty.

For additional information on the self tests, see ‘’Self-Test Descriptions’’ starting on page 10-10.

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