Agilent Technologies 4284A Service Manual page 93

1
D A N G EROUS VOLTAGE, EXCEEDS
o
Knob control
Screwdriver adjustment
Circuit assembly boarderline
*
Asterisk denotes a factory selected value.
may be omitted.
Bead inductance.
Circuit board pa ttern inductance
Heavy line indicates main signal path.
Heavy dashed line indicates main feedback path.
Wiper moves towards CW with clockwise rotation o f control (as viewed
from shaft or knob).
Nu mbered test point. Measurement aid provided.
Denotes wire color code. Code used is the same as the resistor color code
9.4.7
(e.g., denotes white/yellow/violet).
Encloses front panel
designations.
r - - -
- -,
L ...J
Shielded area
_ _ _ _
Indica tes d irec t conducti ng connection to earth.
Indicates conducting connection to chassis or frame.
Indicates c ircuit common connection.
Fig ure 4-2 . Schematic Diagram Symbols
1 0 00
VOLTS
Value shown is typical, part
4 ·6