Symmetricom 5071A Assembly And Service Manual

Index
185
A8 1 PPS output fault 97
A8 1 PPS outputs test 97
A8 clock increment test 96
A8 diagnostic test setup 95
A8 front/rear-panel sync input test 98
A8 sync fault 98
A8, clock does not increment, fault 1 96
A8, clock does not increment, fault 2 97
A8-to-chassis interconnect test 98
A9 10 MHz signal test 99
A9 80 MHz signal test 100
A9 J1 320 MHz signal test 100
A9 module power checks 99
A9, A19 10 MHz output test 100
ac line-fuse test 67
ac-line fuse fault isolation, A11/A12 inputs 70
ac-line fuse fault isolation, rule out A1 69
ac-line fuse fault isolation, rule out A11 69
ac-line fuse fault isolation, rule out LF1/T1 69
ac-line operation - battery indicator on 58
advisory message interpretation 65
advisory messages 65
analog-signal chain
A6 TP 5&6 voltage test 74
A6J7 voltage test 75
A6U10 10.2&10.3 voltage difference test 75
A6U10 10.2&10.3 voltage test 76
reference voltage test 1 75
transimpedance test 76
VFC output test 1 75
VFC output test 2 76
analog-signal chain diagnostic tree 74
assembly identification and location 31
assembly/module diagnostic trees 82
CBT background-signal warm-up errors 54
CBT depth-of-modulation warm-up errors 55
CBT performance evaluation 61
CBT shutdown message 53
CBT signal to noise ratio 63
CBT support-circuit tests 55
CBT warm up 40
CBT-signal fatal errors 53
C-field
current test 81
winding leakage test 81
C-field diagnostic tree 81
conclusion of diagnostic procedure 43
Cs oven failed/ion pump overcurrent warm-up error
52
Cs oven timeout test 54
dc-supply test/log record examination 39
delayed failures, warnings, and messages 44
delayed fatal errors 44
depth of modulation 63
diagnostic tree organization 34
diagnostic trees and procedures 33
digital supply voltage check 38
disassembly and reassembly 28
electrostatic discharge 28
equipment required 2
example error-code interpretation 50
exchange part availability 31
ext. dc input fuse fault 72
fatal-error interpretation 45
first power-on 37
functional-group diagnostic trees 66
ground continuity test 29
HP 5071A profiling (CBT performance evaluation)
58
HP 5071A profiling results evaluation 63
I/O diagnostic tree 60
input/output checks 41
input/output faults 60
instrument power absent 59
instrument top view 32
insulation resistance test 29
internal-battery charger test 73
LF1/T1 transformer fault verification 59
line filter/cable assembly check 29
microprocessor fault, A3 38
navigating the diagnostic trouble tree sections 34
no operation from internal standby battery 72
operating error-code interpretation 49
operating/warm up error 49
power source is batt 58
power-on fatal error check 40
power-on fatal error diagnostic tree 45
power-supply diagnostic tree 67
pps interrupt test 48
product performance checks 29
product safety checks 28
profiling, CBT performance evaluation 42
required test equipment 2
RF chain
131.771 kHz frequency test 80
320 MHz frequency and amplitude tolerance
test 79
80 MHz frequency test 80
87.36823 MHz frequency and amplitude test79
9192 Hz frequency test 79
9192 MHz signal-spectrum test 77
A10 output frequency test 78
A10 port 1 and 2 amplitude test 78
A19 output amplitude and frequency test 78
test start up 77
RF-chain diagnostic tree 77
RF-level control current test 56
rule out A1 or module fault 71
rule out shorted assemblies/modules 72
running the HP 5071A profiling software 61
SCPI commands 33
self test diagnostic tree 47
self test failure interpretation 47
self tests, internal 33, 40

Symmetricom 5071A Specifications

General

Brand	Symmetricom
Model	5071A
Category	Measuring Instruments
Language	English