Component Location And Circuit Diagrams - HP 6033A series Service Manual

Component Location and Circuit Diagrams

This chapter contains component location diagrams, schematics, and other drawings useful for maintenance of the power
supply. Included in this section are:
a. Component location illustrations (Figures 6-1 through 6-6), showing the physical location and reference designators of
almost all electrical parts. (Components located on the rear panel are easily identified.)
b. Notes (Table 6-1) that apply to all schematic diagrams.
c. Schematic diagrams (Figures 6-7 through 6-9).
AC line voltage is present on the A1 Main Board Assembly whenever the power cord is connected to an ac
power source.
1. denotes front-panel marking.
2. denotes rear-panel marking.
3. Complete reference designator consists of component reference designator prefixed with assembly number (e.g.:
A2R14).
4. Resistor values are in ohms. Unless otherwise noted, resistors are either 1/4W, 5% or 1/8W, 1%. Parts list provides
power rating and tolerance for all resistors.
5. Unless otherwise noted, capacitor values are in microfarads.
6. Square p.c. pads indicate one of the following:
a. pin 1 of an integrated circuit.
b. the cathode of a diode or emitter of a transistor.
c. the positive end of a polarized capacitor.
7. Schematic components marked with an asterisk (*) indicate that different values are used in each model. Refer to the
parts list for the applicable values.
8.
9.
Inter-board commons have letter identifications (e.g.:
identifications (e.g.:
Table 6-1. Schematic Diagram Notes
indicates multiple paths represented by only one line. Reference designators with pin
numbers indicate destination, or signal names identify individual paths. Numbers
indicate number of paths represented by the line.
).
); commons existing on a single assembly have number
6
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