Agilent Technologies 2712A, 2948 manual Schematic Diagram Notes 2

Model 8904A Service

Table 8-1.Schematic Diagram Notes (2 of 11)

Values for all components are marked in units of farads, henries, and ohms unless otherwise specified.

*

0

-0-

F-

Asterisk denotes a factory-selected value. Value shown is typical. See Section V.

Tool-aided adjustment.

Encloses front-panel designation.

Encloses rear-panel designation

Circuit assembly borderline

Other assembly borderline.

Heavy line with arrows indicates path and direction of main signal

Heavy dashed line with arrows indicates path and direction of main feedback.

Indicates stripline (Le.. RF transmission line above ground).

Wiper moves toward cw with clockwise rotation of control (as viewed from shaft or knob).

Numbered Test Point measurement aid provided.

Encloses wire or cable color code. Code used is the same as the resistor color code.

UFirst number identifies the base color, second number identifies the wider stripe, and the third number identifies the narrower stripe, e.g., (917) denotes white base, yellow wide stripe, violet narrow stripe.

c

m

-4

Adirect conducting connection to 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-designation points are connected.

12Letter = off-page connection.

Number = Service Sheet number for off-page connection.

In the example, signal flow is continued on Service Sheet 12, at the point marked

Number (only) = on-page connection

8-5