Index
184
overall block diagram
131
overvoltage protection circuit
146
power supply block
144
reference oscillator rf-chain block
137
simplified functional description
126, 127
analog-signal chain block
129
cesium beam tube block
128
input/output block
129
instrument control block
128
power supply block
129
reference oscillator/rf-chain block
128
T1 toroidal power transformer
146, 158
Tools required for repair
160
Tools, special
5
Top-level diagnostic tree
37
Top-level diagnostic tree organization
35
Troubleshooting
1PPS assembly 80 MHz input test
45
A1 fault
70
A10 1 MHz output test
105
A10 100-kHz output test
106
A10 J5 80 MHz input test
101
A10 output port-1 test
102
A10 port-1 frequency error (10, not 5 MHz)
102
A10 port-1 frequency error (5, not 10 MHz)
103
A10 port-1 frequency selection error test
103
A10 port-2 frequency error (10, not 5 MHz)
104
A10 port-2 frequency error (5, not 10 MHz)
104
A10 port-2 frequency selection error test 104, 105
A10 port-2 test
104
A10 power checks
101
A10 SEL-A line test
103
A10 SEL-B line test
105
A10, A9J2-to-A10J5 cable test
102
A11 F1 fuse fault
73
A11/A11 cable test
68
A11/A11-A1 cables test
68
A11P101 connection test
70
A12 module test
71
A12 power input test
67
A15 +4.5V power cable test
107
A15 320-MHz signal test
108
A15 power check
107
A15, A15J1 power-level check
110
A15, A15J2 frequency-range test
110
A15, A15J3 signal test
108
A15, A15J5 signal test
109
A15, A15J5-CBT cable test
109
A15, A18J3 voltage test
107
A16 electron multiplier high-voltage supply test114
A16 electron multiplier supply control current test
115
A16 ion pump current monitor diagnosis
113
A16 ion pump high-voltage supply test
111
A16 ion pump return current test
112
A16 ion pump return current zero test
112
A16 preliminary set-up
111
A16/CBT excess ion-pump current test
52
A18 mon voltage test
119
A18 average mon voltage test
119
A18 mon signal ac-content test
119
A18 power check
116
A18, A15 +4.5V test
118
A18, A15 320 MHz input test
118
A18, A15 70-110 MHz input test
117
A18, A15J3 and A18J4 cable test
117
A18, A18J3 dc-voltage test
118
A18, A18J3 to A15/+4.5V cable test
118
A18, A18J4 signal input test
119
A18, A5 87.368230 MHz input signal test
116
A18, A5 87.368230-MHz input cable test
117
A19 EFC voltage test (1)
122
A19 EFC voltage test (2)
123
A19 loaded power-supply voltages
121
A19 oven warm-up time test
123
A19 power fault
121
A19 signal-amplitude test
123
A19 signal-frequency test
124
A19 VCXO set-point adjustment
124
A19, A6 unloaded A19-power-supply voltages 120
A19, A6J4.1 and A6J4.9. reference voltage test 122
A1C4 voltage test procedure
59
A1CR3 bridge rectifier test
68
A2 CBT controller
cesium oven monitor test (+ current on)
91
cesium oven monitor test (current off)
90
cesium oven monitor test (-current on)
91
cesium oven-to-ground test
90
cesium-oven resistance tree
90
hot-wire monitor test (current on)
85
hot-wire monitor test (no-current)
84
hot-wire resistance test
84
hot-wire resistance to ground test
84
mass-spectrometer monitor test (- current on)
89
mass-spectrometer resistance test
88
mass-spectrometer test (+ current on)
88
mass-spectrometer test (current off)
88
thermintor monitor test 1 (current on)
87
thermistor ground test
86
thermistor monitor test (no current)
86
thermistor monitor test 2 (current on)
87
thermistor resistance test
86
A2 CBT controller diagnostic tree
83
A2 CBT controller pinouts
83
A5 80 MHz signal test
92
A5 mon signal test
93
A5 power-supply tests
92
A5, A4 131.770 kHz signal test
93
A5, A9J3 80 MHz signal cable test
93
A5, J101 87.36823 MHz signal test
94
A8 1 MHz output signal loading test
96
A8 1 MHz output signal test
95
A8 1 MHz waveform voltage/frequency test
96
Summary of Contents for 5071A
Page 2: ......
Page 40: ...1 Performance Tests Verifying Specifications 5071A Complete Performance Tests 24 ...
Page 48: ...2 Service Pre Troubleshooting Information 32 Figure 2 1 Instrument Top View ...
Page 168: ...3 Theory of Operation Functional Block Descriptions 152 Figure 3 5 Power Supply Block Diagram ...
Page 173: ......
Page 194: ...5 Replaceable Parts How To Order A Part 178 ...
Page 197: ......
