Service Guide E8364-90038
4- 33
PNA Series Microwave Network Analyzers
Troubleshooting
E8362C, E8363C, E8364C
Measurement System Troubleshooting
6. If the 5 MHz signal is present, reconnect cable W31, and then continue with
“Checking the A10 Phase
Lock Reference Output, All Bands” on page 4-33
.
Checking the A10 Phase Lock Reference Output, All Bands
1. Refer to the block diagram at the end of this chapter and
“Top Cables–All, All Options Except 080” on
page 6-16
. Locate flexible cable W32 at the A10 frequency reference board.
2. Disconnect W32 from A10J5.
3. Connect the spectrum analyzer to A10J5.
4. Verify the presence of the 8.333 MHz phase lock reference output signal.
5. If the signal is not present, replace the A10 frequency reference board. Refer to
“Removing and
Replacing the A6, A8, A9, and A10 Boards” on page 7-18
.
6. If the signal is present, reconnect cable W32, and then continue with
“Checking the 2nd LO at the A10
Frequency Reference, All Bands” on page 4-33
.
Checking the 2nd LO at the A10 Frequency Reference, All Bands
Perform this procedure if a problem is in one of the receiver channels and appears to be a band related
problem.
1. Refer to the block diagram at the end of this chapter and to
“Top Cables–All, All Options Except 080” on
page 6-16
. Locate the flexible cable W29 at the A10 frequency reference board.
2. Disconnect the flexible cable W29 at A10J4.
3. Connect the spectrum analyzer to A10J4.
4. Verify the presence of the 33.1667 MHz signal at A10J4.
5. If the signal is not present, replace the A10 frequency reference board. Refer to
“Removing and
Replacing the A6, A8, A9, and A10 Boards” on page 7-18
.
6. If the signal is present, reconnect cable W29, and then go to
“Checking the A31 through A34 Receiver
Outputs” on page 4-43
.
Checking the A8 Fractional-N Synthesizer Band 0 and1 Output
1. Refer to the block diagram at the end of this chapter and to
“Top Cables–All, All Options Except 080” on
page 6-16
. Locate the flexible cable W20, at the A8 fractional-N synthesizer board.
2. Disconnect W20 from A8J101.
3. Connect the spectrum analyzer to A8J101.
4. Set the network analyzer for a 500 MHz CW frequency and observe the spectrum analyzer measurement.
•
The spectrum analyzer should measure a signal at 508.33 MHz.
5. If the 508.33 MHz signal is not present and the 5 MHz reference signal is present from
“Checking the
A10 5 MHz Reference Output, All Bands,”
replace the A8 fractional-N synthesizer board. Refer to
“Removing and Replacing the A6, A8, A9, and A10 Boards” on page 7-18
.
6. If the signal is present, reconnect cable W20, and then continue with
“Checking the A8 Fractional-N
Synthesizer Band 2 Output” on page 4-34
.
Summary of Contents for E8362C
Page 11: ...Service Guide E8364 90038 1 1 1 Safety and Regulatory Information ...
Page 21: ...Service Guide E8364 90038 2 1 2 General Product Information ...
Page 33: ...Service Guide E8364 90038 3 1 3 Tests and Adjustments ...
Page 81: ...Service Guide E8364 90038 4 1 4 Troubleshooting ...
Page 137: ...Service Guide E8364 90038 5 1 5 Theory of Operation ...
Page 171: ...Service Guide E8364 90038 6 1 6 Replaceable Parts ...
Page 257: ...Service Guide E8364 90038 7 1 7 Repair and Replacement Procedures ...
Page 341: ...Service Guide E8364 90038 8 1 8 General Purpose Maintenance Procedures ...