Chapter 5
8500C/8500C+ System Maintenance Manual 5-1
5.
Maintenance And Repair
Section 5.1 Test Equipment..................................................................................................5-1
Section 5.2 Routine Maintenance Procedures .....................................................................5-3
Section 5.3 Periodic Inspection Procedures........................................................................5-3
Section 5.4 Functional Tests................................................................................................5-3
Section 5.5 Calibration Tests...............................................................................................5-12
Section 5.6 Troubleshooting Guide......................................................................................5-30
Section 5.7 Repair................................................................................................................5-44
Section 5.8 Disassembly ......................................................................................................5-51
Section 5.9 Reassembly........................................................................................................5-69
Section 5.10 List of Field-Replaceable Components...........................................................5-72
Section 5.11 Cage Codes .....................................................................................................5-77
5.1 Test Equipment
Table 5-1 lists the test equipment, accessories, and cables needed to perform maintenance on the
8500C/C+ balancer/analyzer system. Figure 5-1 shows schematics and materials needed to create test
cables #8278 and #10502.
Table 5-1. Test Equipment
Part No. Nomenclature Manufacturer Characteristics
9100 Power Supply Chadwick-Helmuth 12 to 28 VDC, 5 Amperes
HP-8904A Signal
Generator
Hewlett-Packard 10 mV to 5 VAC (+.1%)
from3 Hz to 10 KHz
(+0.01%), distortion plus
noise less than -60 dB, sync
to sine signal phase
relationship 180°. Rise and
fall time for square wave
signal input must be less
than 1µs.
11210-5 Cable (2 each) Chadwick-Helmuth Velocimeter cable, 5 ft
10813-12 Cable Chadwick-Helmuth Power cable
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