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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
+5.0
285
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
Содержание E8362B
Страница 11: ...Service Guide E8364 90026 1 1 1 Safety and Regulatory Information ...
Страница 19: ...Service Guide E8364 90026 2 1 2 General Product Information ...
Страница 33: ...Service Guide E8364 90026 3 1 3 Tests and Adjustments ...
Страница 83: ...Service Guide E8364 90026 4 1 4 Troubleshooting ...
Страница 151: ...Service Guide E8364 90026 5 1 5 Theory of Operation ...
Страница 185: ...Service Guide E8364 90026 6 1 6 Replaceable Parts ...
Страница 269: ...Service Guide E8364 90026 7 1 7 Repair and Replacement Procedures ...
Страница 351: ...Service Guide E8364 90026 8 1 8 General Purpose Maintenance Procedures ...