Service manual

Diagrams 69
6
Diagrams
Introduction
This chapter contains drawings and diagrams for troubleshooting and maintaining Agilent Series 669xA Power
Supplies. Unless otherwise specified, a drawing or diagram applies to all models of the series. Wiring connections to
external equipment are shown in the Power Supply Operating Manual.
In the diagrams, the name of a complementary signal is sometimes shown with a bar above the signal mnemonic. In
other diagrams and in the text, complementary signals are shown with an asterisk (*) after the mnemonic (such as
PCLR*). A mnemonic with a bar over it or an asterisk after it represents the same signal.
Table 6-1 summarizes the contents of this chapter.
Table 6-1. Summary of Chapter Contents
Function Description See
Signal names Table of signal name mnemonics Table 6-2
Test points Description of each test point. The location of each test point is shown on
the appropriate schematic and its associated parts location drawing.
Table 6-3
Schematic notes A list of general notes that are applicable to all schematic diagrams.
Notes that apply to a specific schematics appear on the schematic sheet.
Table 6-4
Waveforms Test point waveforms for Table 6-3. Figure 6-1
Interconnections Drawing identifying each circuit board, the cables between boards, and
schematic diagram for each board.
Figure 6-2
Schematics Al Front Panel Board.
A2 GPIB Board.
A3 FET Board.
A4 AC Input Power Board.
A5 DC Rail Board.
A6 Bias Board.
A7 Snubber Board.
A8 Fast Sense Board.
A9 Down Programming/Slow Sense Board.
A10 Control Board.
Assembly and
component
locations
A diagram that shows the location of components on a circuit board is
included with each circuit board schematic.
A drawing showing location of each circuit board in the chassis is in
Chapter 3.
Figure 3-15