Operating Information; 1-2A 7704A Front-Panel Controls And Connectors - Tektronix 7704A Instruction Manual

Operating Information—7704A Service
ASTIG Screwdriver adjust-
ment to obtain a well-defined
display. Does not require re- FOCUS Adjustment for opti-
adjustment in normal use. mum display sharpness.
BEAM FINDER Compresses
and defocuses display within
graticule area regardless of dis-
play position or applied signal. .
INTENSITY Controls bright-
ness of the display (except the
readout portion). «
' | JI04A
TRACE
ROTATION Screw- OS
.
: OSEIRLASCOPE.SYSTEM
.
driver adjustment to align
: oe
go 2 :
READOUT Controls bright-
trace with graticule.
: ; :
: a
ness of the readout portion of
: the CRT display. Turns off the
readout system when in the
CCW detent position,
GRAT !LLUM Controls grati-
cule illumination.
CALIBRATOR Provides cali-
brated 40mV-4V, 1kHz
square-wave signals.
B TRIGGER SOURCE Selects
internal trigger source for B
HORIZ time base.
POWER (PULL)
B INTEN Controls brightness
of the trace produced by the B
HORIZ plug-in.
HORIZONTAL MODE Selects
horizontal plug-in compart-
VERT TRACE SEPARATION A INTEN Controls brightness re eflecion agra
(B} Vertically positions the B of the trace produced by the .
HORIZ trace with respect to A HORIZ plug-in.
the A HORIZ trace (dual-
sweep modes only) .
A TRIGGER SOURCE Selects
internal trigger source for A
HORIZ time base.
Fig. 1-2A. 7704A front-panel controls and connectors.
1-2