Tektronix TDSDDM1, Руководство пользователя

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Installation
TDSDDM1 Disk Drive Measurement Application User Manual
1–5
Use the primary setup if you want the oscilloscope to control the disk measure-
ments. The primary setup is used for most configurations.
Connect the disk drive to the oscilloscope as shown in Figure 1–2.
Test oscilloscope
Disk drive
CH 1 CH 4
Index signal (standard probe)
CH 3
Read signal (differential probe)
Sector signal (standard probe)
Figure 1–2: Primary setup connections
Table 1–1 shows the default channel-to-signal assignments. You can change the
channel assignments to match your configuration. See Configuring the Input
Channels on page 1–11 for more information.
Table 1–1: Primary setup channel assignments
Channel Description
Ch 1 Read signal from the preamp channel
Ch 2 Read Gate signal (optional)
Ch 3 Sector pulse, marking the beginning of the sector on the track
Ch 4 Index pulse, marking the beginning of the track
NOTE
. Some disk drives mark the beginning of a track by the absence of a sector
pulse. For this case, a timeout trigger setup is needed to identify the beginning
of the track. The Disk Drive Measurement Application does not support this
configuration.
Primary Setup