Section
VI
1-A-1-2
6-18
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L_
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17
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Model 7475A
SCHEMATIC DIAGRAM NOTES
Resistance in
ohms,
capacitance in microfarads,
inductance
in millihenries unless
otherwise
noted.
Asterisk
denotes
a factory-selected value. Value
shown
is typical.
Part
might be
omitted.
Indicates a
NOTE
on
the schematic diagram.
Tool-aided
adjustment.
0
Manual
control.
Encloses a front-panel
or
circuit assembly silkscreened designator.
Encloses a rear-panel silkscreened designator.
Circuit assembly borderline.
Other
assembly borderline. Also used
to
indicate mechanical
interconnection
(ganging)
and
RF
shielding.
Heavy line with arrows indicates
path
and
direction
of
main
signal.
Heavy dashed line
with
arrows indicates
path
and direction
of
main feedback .
Indicates cable run
with
seven lines.
Wiper moves
toward
CW
with
clockwise
rotation
of
control
(as viewed from
shaft
or
knob).
Numbered
Test
point.
Measurement
aid
(metal
post,
circuit pad,
etc.)
provided.
Lettered
Test
point.
No
measurement
aid provided.
Encloses wire
color
code. Code used
is
the same as the resistor
color
code. First
number
identifies the base color, second
number
identifies the wider stripe, third
number
identifies
the
narrower
stripe (e.g.,
(947)
denotes
white base, yellow wide stripe, violet
narrow
stripe) .
A direct
conducting
connection
to
the
earth,
or
a
conducting
connection
to
a
structure
that
has a similar
function
(e.g., the frame
of
an air, sea,
or
land vehicle).
A
conducting
connection
to a chassis or frame.
Common
connections.
All like-designated
points
are
connected.
When accompanied by a
letter,
indicates
the
type
common
(i.e.,
A=
Analog, D
=Digital,
F
=Floating).
Figure
6-22.
Schematic
Diagram
Notes (Sheet 1
of
2)
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