HP 8340b - Page 8

CONTENTS
(Cont'd)
OVERALL
INSTRUMENT TROUBLESHOOTING
.................................
A-31
Overall
Instrument
Troubleshooting Diagram
.....................................
A-34
Front and
Rear
Panel
Items
...................................................
A-35
Instrument
Preset
Conditions
(1)
................................................
A-36
Instrument
Appears
Dead
(2)
..................................................
A-37
Fan
Runs
Slowly,
All
LEDs
On(but
dim)
.........................................
A-37
Fan
(3)
....................................................................
A-37
Instrument
Check
LEDs
Remain
On
(4)
..........................................
A-38
Oven Annunciator
(5)
.........................................................
A-38
Unlock
Annunciator
(6)
.......................................................
A-39
Fault
Annunciator
(7)
........................................................
A-40
Unleveled
Annunciator
(8)
.....................................................
A-41
Overmod Annunciator(9)
......................................................
A-41
SRQ
Annunciator
(10)
........................................................
A-42
Upper
Keyboard,
Lower
Keyboard,
Displays
(11,12,13)
.............................
A-42
Frequency
(14)
.............................................................
A-43
Power
(15)
.................................................................
A-43
Sweep
(16)
.................................................................
A-44
Spectral
Purity/Harmonics (17,18)
..............................................
A-45
I/O
Connectors
(19)
..........................................................
A-49
Remote
Operation
(20)
.......................................................
A-49
REPAIR
PROCEDURES
.......................................................
A-50
How
to Clean
Printed Circuit
board
Fingers
.......................................
A-50
Module
Exchange Program
...................................................
A-50
AFTER SERVICE
SAFETY
CHECKS
...........................................
A-51
Visual
Inspection
............................................................
A-51
Check
Line Cord
Ground
......................................................
A-51
Check the
Line/Neutral
.......................................................
A-51
Check the
Line
Fuse
.........................................................
A-51
Air
Filter
Replacement
........................................................
A-52
ASSEMBLY PIN
I/O
TABLES
.................................................
A-53
ii
Table of
Contents
HP
8340B/41B