Chapter 3 Replacing Assemblies
Introduction
3-2
Assembly-Level Service Guide
3
Introduction
This chapter contains the instructions for removing major assemblies in
the HP 53131A/132A/181A. To install an assembly, reverse the removal
instructions.
This chapter provides the following disassembly and reassembly
procedures:
WARNING
HAZARDOUS VOLTAGES ARE ON THE POWER SUPPLY
ASSEMBLY. UNPLUG THE INSTRUMENT, THEN WAIT AT
LEAST SIX MINUTES FOR THE CAPACITORS ON THE POWER
SUPPLY ASSEMBLY TO DISCHARGE BEFORE WORKING ON
THIS INSTRUMENT.
CAUTION
Do not replace assemblies with the instrument turned on. Damage to
components can occur.
Refer to Chapter 5, “Replaceable Parts,” for the part number of the
assemblies.
•
•
•
To Remove A1 Motherboard Assembly
•
To Remove the A2 Display Board, Keypads, and Window page 3-11
•
To Remove A3 1.5/3.0/5.0/12.4 GHz Channel Assembly
(Option 015/030/050/124)
•
To Remove A4 AC Power Supply Assembly
•
To Remove A5 DC Power Input Assembly (Option 002)
•
To Remove A6 High Stability Timebase Assembly
(Options 001, 010, and 012)
•
Summary of Contents for 53131A
Page 1: ...Assembly Level Service Guide HP 53131A 132A 181A 225 MHz Counter ...
Page 2: ......
Page 14: ...Contents xii Assembly Level Service Guide ...
Page 22: ...Preface xx Assembly Level Service Guide ...
Page 23: ...1 Performance Tests Verifying Specifications ...
Page 97: ...2 Service ...
Page 149: ...3 Replacing Assemblies Disassembly and Reassembly ...
Page 173: ...4 Retrofitting Options ...
Page 191: ...5 Replaceable Parts ...
Page 201: ...6 Backdating Manual Changes ...
Page 218: ...Chapter 6 Backdating Backdating Specifications 6 18 Assembly Level Service Guide 6 ...
Page 219: ...7 HP 53131A 132A Specifications ...
Page 235: ...8 HP 53181A Specifications ...
Page 246: ...Chapter 8 HP 53181A Specifications General Information 8 12 Assembly Level Service Guide 8 ...
Page 252: ......
Page 254: ... Manual Part Number 53131 90039 Printed in U S A MARCH 1999 ...