Schematic Diagram Notes; Schematic Diagram - HP 5004A Operating And Service Manual

Resistance in ohms, capacitance in picofarads, inductance in millihenries unless other-
wise noted.
Asterisk denotes a factory-selected value. Value shown in typical. Part may be omitted.
Tool-aided adjustment.
Encloses front-panel caption.
,
r - - - 1
Encloses rear-panel caption.
Encloses interior or printed-circuit board caption.
Circuit assembly borderline.
-- - - - -
Other assembly borderline. Also used to indicate mechanical interconnection (ganging).
Wiper moves toward CW with clockwise rotation of control (as viewed from shaft or
knob).
Numbered Test Point.
Measurement aid provided
A direct conducting connection to the earth, or a conducting connection to a structure
that has a similar function (e.g., the frame of a n air, sea, or land vehicle).
A conducting connection to a chassis or frame.
Common connections. All like-designated points are connected.
A
Indicates mukiple paths represented by only one line Letters or names identify individual
paths. Numbers indicate number of paths represented by the line.
Integrated Circuit Power Terminals
Unless noted otherwise*, +5 volts is applied to each integrated circuit a s given below:

SCHEMATIC DIAGRAM NOTES

14-Pin Units
Pin 14
Pin 7
Exceptions
U25, U26, U27
Pin 14
Pin 10
Several integrated circuits use the -5.2V power. The -5.2V pins are
shown on the schematic diagram.
Manual control.
Lettered Test Point.
No measurement aid provided.
Power
Return
+5V
Return
NOTE
16-Pln Unlts
Pin 16
Pin 8