Tektronix 070-8462-03, Instruction Manual

Page: 39 / 271

Operating Basics
2–2
1735 HD High Definition Waveform Monitor
Figure 2–1: 1735 HD High Definition Waveform Monitor
2. CLAMP / GND
This switch toggles between On and Off. When DC CPLG is selected, it
controls the input ground relays (to ground the inputs for checking DC
levels). When DC CPLG is deselected, it controls the input clamps
(providing a choice of clamped or unclamped display). The clamp can be set
for FAST or SLOW through the menu.
NOTE
. When the DC CPLG & GND LEDs are on, the inputs are grounded.
3. REF
This switch toggles between CH1 (A or B) and EXT REF.
NOTE . When both CH A and CH B are on, reference is forced to EXT, and
returns to previous reference when the AB mode is exited.
Clamp
Reference