Fluke Portable Multimedia Player 8842a 用户手册
6-1
Chapter 6
Maintenance
Title
Page
6-1.
6-2.
6-3.
Diagnostic Self-Tests ......................................................................... 6-4
6-4.
DC Voltage Test................................................................................. 6-5
6-5.
AC Voltage Test (Option -09 Only)................................................... 6-7
6-6.
Resistance Test................................................................................... 6-8
6-7.
DC Current Test ................................................................................. 6-9
6-8.
AC Current Test (Option -09 Only) ................................................... 6-10
6-9.
CALIBRATION ..................................................................................... 6-10
6-10.
Basic Calibration Procedure............................................................... 6-11
6-11.
INITIAL PROCEDURE ................................................................ 6-11
6-12.
6-13.
OFFSET AND GAIN CALIBRATION ........................................ 6-14
6-14.
HIGH-FREQUENCY AC CALIBRATION.................................. 6-15
6-15.
Advanced Features and Special Considerations................................. 6-16
6-16.
STORING VARIABLE INPUTS .................................................. 6-16
6-17.
CALIBRATING INDIVIDUAL RANGES................................... 6-17
6-18.
VERIFYING CALIBRATION...................................................... 6-17
6-19.
ERASING CALIBRATION MEMORY ....................................... 6-18
6-20.
6-21.
AC CALIBRATION AT OTHER FREQUENCIES ..................... 6-19
6-22.
OPTIMIZING USE OF THE 5450A............................................. 6-19
6-23.
Remote Calibration ............................................................................ 6-20
6-24.
TIMING CONSIDERATIONS ..................................................... 6-23
6-25.
6-26.
EXAMPLE CALIBRATION PROGRAM.................................... 6-24
6-27.
DISASSEMBLY PROCEDURE............................................................ 6-25
6-28.
Case Removal..................................................................................... 6-26
6-29.
True RMS AC PCA Removal (Option -09 Only) .............................. 6-30
6-30.
IEEE-488 Interface PCA Removal (Option -05 Only) ...................... 6-30
6-31.
Main PCA Removal ........................................................................... 6-30
6-32.
Front Panel Disassembly.................................................................... 6-32
6-33.
REASSEMBLY PROCEDURE ............................................................. 6-32
6-34.
INTERNAL FUSE REPLACEMENT ................................................... 6-36