Agilent Technologies 8904A دليل المستخدم

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8904A-04
SER VICE NOTE
SUPERSEDES: None
8904A Multifunction Synthesizer (Option 006/H16)
Serial Numbers: 2948A04593 / 2948A04693
Replacement of Audio Transformer to Correct Inverted Waveform
Parts Required:
9100-4833, Audio Transformer
Situation:
Some 8904A Multifunction Synthesizer (Option 006/H16) with serial numbers listed
above may have inverted OUTPUT 1 waveforms. This is because the primary of Audio
Transformer T1 was wound backwards, resulting in a 180 degree phase shift from the pri-
m

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Page 2 Service Note 8904A-04 Solution/Action: Configure the unit to output a ramp waveform from OUTPUT 1 at approximately 1 kHz and 1 Volt. Verify with an oscilloscope whether the ramp waveform is inverted (ramps down instead of up). If this behavior is unwanted then replace T1 with the part number noted above.