Tektronix WFM90D, Быстрый старт

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Specifications
WFM90D and WFM91D Service Manual
1- 5
Table 1- 3: Audio mode
Category Description
Reference Levels
REQ:
--10 dBu, 0 dBu, +4 dBu, +8 dBu.
REF:
Nominal MIC reference: --50 dBu.
Measurement Accuracy
REQ:
0.5 dB at 1 kHz.
Frequency Response
REQ:
0.5 dB from 50 Hz to 20 kHz.
Maximum Input Level Amplitude
REF:
+18 dBu.
DC Input Impedance
REF:
≥
15 k
Ω
.
Audio Output Connector
REF:
Mini stereo headphone jack.
Maximum Power Output
REF:
250 mW.
Table 1- 4: Horizontal deflection system
Category Description
Sweep
REQ:
Sweep will occur in all Horizontal mode settings with or without synchronization.
REF:
Sweep Length: Two Line and Two Field sweep length is nominally 12 divisions.
1LINE Sweep Repetition Rate
REQ:
Equal to line-rate of applied video or external sync.
2LINE Sweep Repetition Rate
REQ:
Equal to half line-rate of applied video or external sync.
2FLD Sweep Repetition Rate
REF:
Displays 2 full fields, including the field-rate sync between them.
2FLD Sweep Magnification
REF:
Approximately X20.
Sweep Magnifier Registration
REF:
Magnification occurs about the center of the screen.
Timing Accuracy
REF:
All timing and linearity specifications exclude the first and last major divisions of the
unmagnified display.
REQ:
10 s/division (2LINE): Within 2%.
REQ:
5 s/division (1LINE): Within 2%.
REQ:
1 s/division (2LINE + MAG): Within 2%.
REQ:
0.5 s/division (1LINE + MAG): Within 3%.
Integral Linearity
REQ:
Within 1%.
REF:
Measured between the 10 s and 110 s points on the 10 s/division (2LINE)
sweep.
Horizontal Position
REF:
Any portion of a synchronized video sweep can be positioned on-screen in all sweep
modes.