
Chapter 6
Removal and Replacement
Procedures
6-1
INTRODUCTION
This chapter provides procedures for gaining access to the major
690XXB/691XXB assemblies, subassemblies, and components for
troubleshooting or replacement.
WARNING
Hazardous voltages are present inside the 690XXB/691XXB
whenever ac line power is connected. Turn off the unit and
remove the line cord before removing any covers or panels.
Troubleshooting and repair procedures should only be per-
formed by service personnel who are fully aware of the po-
tential hazards.
CAUTION
Many subassemblies in the instrument contain static-
sensitive components. Improper handling of these subas-
semblies may result in damage to the components. Always
observe the static-sensitive component handling procedures
described in Chapter 1, Figure 1-2.
NOTE
Many assemblies, subassemblies, and components within
the 69XXXB family of instruments are type and model de-
pendent. Before replacing an assembly, subassembly, or
component, always verify the part number of the replace-
ment item. Part numbers can be found in Chapter 1, Tables
1-3 and 1-4.
690XXB/691XXB MM
6-3
Summary of Contents for 680 C Series
Page 4: ......
Page 5: ......
Page 13: ...Figure 1 1 Typical Series 690XXB 691XXB Synthesized CW Signal Generator Model 69187B Shown ...
Page 61: ......
Page 97: ......
Page 205: ......
Page 207: ......
Page 221: ......
Page 225: ......
Page 241: ......
Page 259: ......
Page 275: ......
Page 285: ......
Page 289: ......
Page 299: ......
Page 303: ......
Page 315: ......