Service Guide E8364-90026 4-11
PNA Series Microwave Network Analyzers Troubleshooting
E8362B, E8363B, E8364B Power Up Troubleshooting
Isolate the remaining three assemblies:
• remove the A15 CPU board
• remove the A4 power supply
• This leaves only the A14 system motherboard installed. If the measurements are still
incorrect, this is the suspected faulty assembly.
Table 4-2 Power Supply Voltages and Resistances
Measurement
Location
Supply
(Vdc)
Approximate
Resistance (Ω)
A+5.0285
B -15.0 12.7 k
C -5.0 7.2 k
D +9 4.0 k
E +15 3.0 k
F +22 2.8 k
G +22 890
H +32 2.6 k
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