Symmetricom 5071A Assembly And Service Manual

Index
183
Instrument control block 128, 133
Instrument control block interconnections 134
Instrument top view 32
Insulation resistance test 29
Internal-standby batteries 144
Interpreting profiling results 42
LF1 line filter cable assembly 144
Line filter/cable assembly check 29
Maintenance, corrective 25
Maintenance, routine 1
Motherboard circuit description 146
Navigating the diagnostic tree sections 34
Non-harmonic (spurious) signal check for 5 and 10 MHz
outputs 12
Non-harmonic distortion test setup 12
Operating firmware 135
fatal-error mode 136
normal operation mode 135
power-on mode 135
standby mode 136
warm-up mode 135
warning mode 136
Operational verification 1, 5
Ordering parts 174
Overall block diagram 131
Overvoltage protection circuit 146
Packing the instrument 26
Part number
operating and programming manual xiv
Parts identification 174
Performance test record 2, 22
Performance testing 1
Power supply block 129, 144
Power supply block interconnections 145
Power-supply troubleshooting 67
Pre-troubleshooting information 25, 27
Product performance checks 29
Rear panel
output signal checks 7
outputs verification setup 7
Recommended test equipment 2, 3, 4, 28
Reference oscillator/rf-chain block 128, 137
Reference oscillator/rf-chain block interconnections 138
Remote control setup 8
Remote operation
Cabling setups 10
modem connection 8
Removal and replacement
A10 output frequency distribution amplifier module
163
A12 dc-dc power converter module 164
A13 front panel module 165
A14 signal amplifier module 166
A15 9.2 GHz microwave generator module 167
A16 high voltage supply module 167
A17 CBT assembly 168
A17 CBT replacement operation verification 171
A19 reference oscillator module 173
covers, top, bottom, and side 161
Repair strategy, HP 5071A xiii
Repair tools 160
Replacing assemblies 160
Returning the instrument to HP 25
RS-232 data communication 84, 85, 86, 87, 88, 89, 90,
91
RS-232 verification 1, 8
RS-232C cabling setups 9
Safety considerations 27
SCPI commands 33
scpi> prompt 8
Self tests 5, 33
Serial communication 8
Serial number prefix xiv
Service
Service accessories 29
Service accessories kit contents 30
Service manual
organization xiv
Signal to noise ratio 42
Simplified functional description 126, 127
T1 toroidal power transformer 144, 146
Test 1, output signals, harmonic distortion and spurious
signals check 10
Test setup
1 MHz output harmonic distortion 14
100 kHz harmonic distortion 16
frequency accuracy 18
harmonic distortion 10
non-harmonic distortion 12
operational verification 7
test 2, frequency accuracy 18
Theory of operation
A1 component locator diagram 159
A1 motherboard circuit description 146
A1 slot/module interconnect diagram 150, 155
A11 power steering logic assembly 146, 147
A12 dc-dc power converter module 146, 147, 158
ac line voltage input circuit 146
analog-signal chain block 141
B1 internal standby battery 159
cesium beam tube block 139
external dc input circuit 147
full-wave bridge rectifier A1CR3 146
functional block descriptions 126, 130
input/output block 143
Instrument control block 133
LF1 line filter/cable assembly 146, 158
operating firmware 135
fatal-error mode 136
normal operation mode 135
power-on mode 135
standby mode 136
warm-up mode 135
warning mode 136

Symmetricom 5071A Specifications

General

Brand	Symmetricom
Model	5071A
Category	Measuring Instruments
Language	English