Table of Contents
Advertisement
Parts Lists and Diagrams- Section 6
6.1 GENERAL . . . . . . . . . . . . . . . . .
6.2 REFERENCE DESIGNATIONS . . . . . . . . . .
6.3
Figure
Figure
Federal
Figure 6-3. Analog and control (Cl board, -4700, front end diagram.
Figure 6-4. Analog and control (Cl
Figure 6-5. Analog and control (C) board, -4700, signal sources diagram
Figure 6-6. Analog and control (Cl board, -4700, digital control diagram
Figure
Figure
Figure 6-9. Power supply (V)
Figure 6-10. Power supply (V)
6.1 GENERAL.
This section contains the parts lists, circuit-board layout
drawings and schematic diagrams for the instrument.
(Section 4 contains functional block diagrams. Section 5
contains
photographs
of
parts.) The heavy lines on schematic diagrams denote the
major
signal
flow.
Reference designation usage is described below.
6.2 REFERENCE DESIGNATIONS.
Each electrical component part on an assembly is identi-
fied on equipment and drawings by means of a reference
designator
comprised
of
types on an assembly are numbered sequentially, the num-
bers being preceeded
by a letter designation that identifies
the component (R for resistor, C for capacitor, etc.). Some
of the less obvious designators are: DS, lamp; Q, transistor;
DIAGRAMS.
.
.
.
6-1.
Front
view,
mechanical
6-2.
Rear
view,
mechanical
Manufacturers
Code
6-7.
Display CD)
board, 16684715, layout . . . . . . . .
6-8.
Display (D)
board,
the
instrument,
identifying
numbers
and
letters.
Component
.
.
.
.
.
.
.
.
.
parts
.
.
.
.
.
parts
.
.
.
.
.
.
.
.
.
.
.
.
.
.
board, 16574700, layout
1658-4715,
diagram
.
.
board, 1657-4720 layout . . . . . .
assembly, 1657-4720, diagram . . . .
U, integrated circuit; WT, wire tie point; X, J, P, or SO,
connector; Y, crystal resonator; Z, filter or network.
Each assembly (typically a circuit board) has its own
various
sequence of designators which can be identified by using
prefixes, such as A- for the main frame and V- for power
supply. Examples: B-R8 designates B board, resistor 8;
D-WT2 = D board, wire-tie point 2; CR6 on the V schema-
tic is a shortened form of designator V-CR6 = V board,
diode 6. The instrument may contain A-R 1, B-R 1, C-R 1,
and D-Rl.
6.3 DIAGRAMS.
Generally, each schematic diagram is located on a right-
hand fold-out page for convenience. The associated layout
drawing and parts list are located on the same page, the
facing page, or otherwise nearby.
.
.
6 - 1
.
.
6 - 1
.
.
.
.
.
.
6-2
.
.
.
.
.
.
.
.
.
.
6-2
.
.
.
.
.
.
.
.
.
.
6 - 5
.
.
.
.
.
.
6-6
.
.
.
.
.
.
6-9
.
.
6-10
.
.
6-11
.
.
.
.
.
6-13
.
.
6-13
PARTS & DIAGRAMS 6-1
Advertisement
Table of Contents
Need help?
Do you have a question about the 1657 RLC Digibridge and is the answer not in the manual?