Agilent Technologies 33120A Manuale utente
Service Guide
Publication Number 33120-90017 (order as 33120-90104 manual set)
Edition 6, March 2002
©Copyright Agilent Technologies, Inc. 1994-2002
For Safety information, Warranties, and Regulatory information,
see the last page in this manual.
Agilent 33120A
15 MHz Function /
Arbitrary Waveform Generator
Cover Page for Web Version ONLY (Service Guide)
The Agilent Technologies 33120A is a high-performance 15 MHz
synthesized function generator with built-in arbitrary waveform
capability. Its combination of bench-top and system features makes this
function generator a versatile solution for your testing requirements now
and in the future.
Convenient bench-top features
10 standard waveforms
Built-in 12-bit 40 MSa/s arbitrary waveform capability
Easy-to-use knob input
Highly visible vacuum-fluorescent display
Instrument state storage
Portable, ruggedized case with non-skid feet
Flexible system features
Four downloadable 16,000-point arbitrary waveform memories
GPIB (IEEE-488) interface and RS-232 interface are standard
SCPI (Standard Commands for Programmable Instruments) compatibility
Agilent IntuiLink Arb Waveform Generation Software for
Microsoft®Windows®
Warning The procedures in this manual are intended for use by qualified,
service-trained personnel only.
Agilent 33120A
15 MHz Function /
Arbitrary Waveform Generator
Note: Unless otherwise indicated, this manual applies to all Serial Numbers.
Page 1 (Service Guide)
The Front Panel at a Glance
1Function / Modulation keys
2Menu operation keys
3Waveform modify keys
4Single / Internal Trigger key
(Burst and Sweep only)
5Recall / Store instrument state key
6 Enter Number key
7 Shift / Local key
8 Enter Number “units” keys
2
Front-Panel Number Entry
Increments the flashing digit.
Decrements the flashing digit.
Moves the flashing digit to the right.
Moves the flashing digit to the left.
Use “Enter” for those operations that do not
require units to be specified (AM Level,
Offset, % Duty, and Store/Recall State).
You can enter numbers from the front-panel using one of three methods.
Use the arrow keys to edit individual digits.
Use the “Enter Number” mode to enter a number with the appropriate units.
Use the knob and the arrow keys to modify the displayed number.
3
The Front-Panel Menu at a Glance
The menu is organized in a top-down tree structure with three levels.
A: MODulation MENU
1: AM SHAPE
Õ
2: AM SOURCE
Õ
3: FM SHAPE
Õ
4: BURST CNT
Õ
5: BURST RATE
Õ
Õ
6: BURST PHAS
Õ
7: BURST SRC
Õ
8: FSK FREQ
Õ
9: FSK RATE
Õ
10: FSK SRC
B: SWP (Sweep) MENU
1: START F
Õ
2: STOP F
Õ
3: SWP TIME
Õ
4: SWP MODE
C: EDIT MENU*
1: NEW ARB
Õ
[ 2: POINTS ]
Õ
[ 3: LINE EDIT ]
Õ
[ 4: POINT EDIT ]
Õ
[ 5: INVERT ]
Õ
[ 6: SAVE AS ]
Õ
7: DELETE
* The commands enclosed in square brackets ( [ ] ) are “hidden” until you make a selection from the
NEW ARB command to initiate a new edit session.
D: SYStem MENU
1: OUT TERM
Õ
2: POWER ON
Õ
3: ERROR
Õ
4: TEST
Õ
5: COMMA
Õ
6: REVISION
E: Input / Output MENU
1: HPIB ADDR
Õ
2: INTERFACE
Õ
3: BAUD RATE
Õ
4: PARITY
Õ
5: LANGUAGE
F: CALibration MENU*
1: SECURED or [ 1: UNSECURED ]
Õ
[ 2: CALIBRATE ]
Õ
3: CAL COUNT
Õ
4: MESSAGE
*The commands enclosed in square brackets ( [ ] ) are “hidden” unless the function generator
is UNSECURED for calibration.
4
Display Annunciators
Adrs
Rmt
Trig
AM
FM
Ext
FSK
Burst
Swp
ERROR
Offset
Shift
Num
Arb
Function generator is addressed to listen or talk over a remote interface.
Function generator is in remote mode (remote interface).
Function generator is waiting for a single trigger or external trigger (Burst, Sweep).
AM modulation is enabled.
FM modulation is enabled.
Function generator is set for an external modulation source (AM, FSK, Burst).
FSK (frequency-shift keying) modulation is enabled.
Burst modulation is enabled.
Sweep mode is enabled.
Hardware or remote interface command errors are detected.
The waveform is being output with an offset voltage.
“Shift” key has been pressed. Press “Shift” again to turn off.
“Enter Number” mode is enabled. Press “Shift-Cancel” to disable.
Arbitrary waveform function is enabled.
Sine waveform function is enabled.
Square waveform function is enabled.
Triangle waveform function is enabled.
Ramp waveform function is enabled.
To review the display annunciators, hold down the Shift key as you
turn on the function generator.
5
The Rear Panel at a Glance
1Chassis ground
2Power-line fuse-holder assembly
3Power-line voltage setting
4AM modulation input terminal
5External Trigger / FSK / Burst modulation
input terminal
6GPIB (IEEE-488) interface connector
7 RS-232 interface connector
Use the front-panel Input / Output Menu to:
Select the GPIB or RS-232 interface (see chapter 4 in User’s Guide).
Set the GPIB bus address (see chapter 4 in User’s Guide).
Set the RS-232 baud rate and parity (see chapter 4 in User’s Guide).
6
In This Book
Specifications Chapter 1 lists the function generator’s specifications
and describes how to interpret these specifications.
Quick Start Chapter 2 prepares the function generator for use and
helps you get familiar with a few of its front-panel features.
Front-Panel Menu Operation Chapter 3 introduces you to the front-panel
menu and describes some of the function generator’s menu features.
Calibration Procedures Chapter 4 provides calibration, verification,
and adjustment procedures for the function generator.
Theory of Operation Chapter 5 describes block and circuit level theory
related to the operation the function generator.
Service Chapter 6 provides guidelines for returning your function
generator to Agilent for servicing, or for servicing it yourself.
Replaceable Parts Chapter 7 contains a detailed parts lists of the
function generator.
Schematics Chapter 8 contains the function generator’s block diagram,
schematics, disassembly drawings, and component locator drawings.
For information on using the Phase-Lock Option for the 33120A, refer to
the User’s and Service Guide included with the Option 001.
If you have questions relating to the operation of the 33120A,
call 1-800-452-4844 in the United States, or contact your nearest
Agilent Technologies Sales Office.
If you believe your 33120A has failed, refer to “Operating Checklist”,
“Types of Service Available”, and “Repackaging for Shipment” at the
beginning of chapter 6.
7
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