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181A
User Manual
HP 181A User Manual Page 149
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3
Replacing Assembl
ies
Disassembly and Reassembly
1
2
...
144
145
146
147
148
149
150
151
152
153
154
...
253
254
HP 53131A/132A/181A
1
225 MHz Counter
1
Assembly-Level Service
3
THUS, NEVER TRY
4
TO MEASURE AC POWER
4
LINE SIGNALS WITHOUT AN
4
ISOLATION TRANSFORMER
4
2 Service
9
Contents
10
3 Replacing Assemblies
11
4 Retrofitting Options
12
5 Replaceable Parts
12
6 Backdating
13
8 HP 53181A Specifications
13
How to Use This Guide
15
How to Order Guides
17
Hardware
20
Accessories Supplied
21
Accessories Available
21
Performance Tests
23
Complete Performance Tests
25
Optional HP-IB Verification
25
Recommended Calibration Cycle
25
Test Record
25
Equipment Required
26
Verification
27
HP 3458A
30
Digital Multimeter
30
Counter Setup
32
HP 8663A
33
Synthesized Signal Generator
33
External Timebase Tests
34
HP 3325B
35
Synthesizer #1
35
Synthesizer #2
35
HP53131A/132
40
Synthesizer
42
FREQUENCY 2
46
Frequency 1
47
Frequency 2
48
(HP 53131A/132A Only)
49
Option 030 only
53
(Option 050 only)
55
(Option 124 only)
56
Volt Peak 2
61
(Optional)
62
(Page 1 of 6)
63
(Page 2 of 6)
64
(Page 3 of 6)
65
(Page 4 of 6)
66
(Page 5 of 6)
67
(Page 6 of 6)
68
(HP 53181A Only)
73
Frequency Sensitivity
80
030/050/124
87
(Page 1 of 4)
93
(Page 2 of 4)
94
(Page 3 of 4)
95
(Page 4 of 4)
96
To Provide Repair Information
99
Scale &
102
On / Stby
102
key, then press POWER
104
To Unsecure for Calibration
105
To Secure Against Calibration
109
To View the Calibration Count
110
Channels 1 and 2
111
key, then press POWER key
111
CALIBRATING
113
OFFS 1 PASS
113
CAL: OFFS 2 ?
113
OFFS 2 PASS
113
DC Power Supply
114
HP 53131A/132A
114
Counter Digital Multimeter
114
To Calibrate Time Interval
115
HP53131A/132A
116
HP 8130A
116
Pulse Generator
116
CAL: TI FINE? Calibration
117
Equipment
117
CAL: TI FINE?
118
TI CAL PASS
118
House Standard
119
10 MHz Reference
119
(Medium, High, or Ultra-High)
120
Chapter 2 Service
123
Channel 1
127
CAL: GAIN 1 ?
129
GAIN 1 PASS
129
HP 53181A
130
Safety Considerations
132
Recommended Test Equipment
133
Repair Considerations
134
After Service Considerations
135
Troubleshooting the Counter
141
Motherboard
142
Assembly
142
TEST LOOP: ON
143
Self Tests
145
Replacing Assemblies
149
Introduction
150
Tools Required
151
Do This First
151
To Remove the Cover
152
SERIAL PLATE
153
To Remove the Front Bezel
154
Rubber foot
164
A4 AC Power
164
Supply Assembly
164
(Option 002)
165
FOR LABORATORY USE BY
168
QUALIFIED PERSONNEL
168
FOUR USAGE EN LABORATOIRE
168
PAR PERSONNEL QUALIFIE
168
Talk Only
168
Retrofitting Options
173
Retrofitting Procedure
177
Cable wires
182
Procedure
184
A6 High Stability
185
Timebase Assembly
185
Plug (MP9)
187
Replaceable Parts
191
Exchange Assemblies
192
Reference Designations
193
How To Order A Part
194
Contacting Hewlett-Packard
195
Cabinet Parts and Hardware
196
Chapter 5 Replaceable Parts
197
Assemblies)
199
Backdating
201
Manual Changes
202
Older Instruments
202
Backdating Hardware
203
CHANGE 3 (New TCXO boards)
204
Option 002
206
Option 015
206
Option 030
206
Option 050
206
Backdating Firmware
208
(Continued)
209
HP53131A
213
(Medium or High)
215
Backdating Specifications
216
Chapter 6 Backdating
218
HP 53131A/132A Specifications
219
Instrument Inputs
220
Instrument Inputs (Continued)
221
Time Base
222
Measurement Specifications
223
Automatic or External Arming:
224
Time or Digit Arming:
224
Time Interval
227
Frequency Ratio:
227
Pulse Width
228
Rise/Fall Time
228
Duty Cycle
229
Totalize
229
Peak Volts
229
Trigger Level Timing Errors
230
Gate Time
232
Measurement Throughput
232
Measurement Arming
232
Measurement Statistics
233
Measurement Limits
233
General Information
234
HP 53181A Specifications
235
Input Frequency (Hz)
240
Frequency Error (Hz)
240
Input Frequency
240
Measurement Definitions
243
NUMERICS
247
1-800-800-5281
251
254
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