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GV30N TROUBLESHOOTING MANUAL
READING ELECTRICAL SCHEMATICS
PAGE 4.4.2
VERSION 0.1 2014-11-01
Unique Symbols
Nautel uses unique symbols on electrical schematics to describe logic (two-state) signals. These signals
differ from single-state signals or analog signals that may have multiple values.
Type of Inputs and Outputs
On electrical schematics, names used to describe logic (two-state) input and output signals are prefixed
with a
#
symbol.
Logic Level Convention
The
#
prefix identifies an input or output signal that has two distinct states:
high
and
low
.
The suffix on an input or output signal name identifies the active (true) state of the signal. The high
suffix (+) indicates the more positive of the two levels used to represent the logic states. The low suffix
(-) indicates the less positive of the two levels.
Two types of logic, positive and negative, may be represented on a particular schematic. In positive
logic,
high
represents the active (true) state, and
low
represents the inactive (false) state. In negative
logic,
low
represents the active (true) state, and
high
represents the inactive (false) state.
Identifying Schematic Diagrams
Each electrical schematic in this section is identified by a number that is both the figure number and the
page number. The numbers are assigned sequentially are prefixed by the letters
SD
. The electrical
schematics and logic diagrams included in this section are listed in
.
Summary of Contents for GV30N
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Page 8: ...GV30N TROUBLESHOOTING MANUAL PAGE 4 VIII VERSION 0 1 2014 11 01...
Page 92: ...GV30N TROUBLESHOOTING MANUAL PARTS LISTS PAGE 4 2 10 VERSION 0 1 2014 11 01...
Page 318: ...VERSION 0 1 2014 11 01 SD 32 Figure SD 32 NAE107A or NAE107A 01 Exciter...
Page 327: ...VERSION 0 1 2014 11 01 SD 41 Figure SD 41 NAFP109B Output Power Probe and Sample PWBs...
Page 337: ...GV30N TROUBLESHOOTING MANUAL MECHANICAL DRAWINGS PAGE 4 5 4 VERSION 0 1 2014 11 01...
Page 351: ...VERSION 0 1 2014 11 01 MD 14 Figure MD 14 NAPA31C Power Amplifier PWB Q1...
Page 363: ...GV30N TROUBLESHOOTING MANUAL LIST OF TERMS PAGE 4 6 2 VERSION 0 1 2014 11 01...
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