Service Guide E8364-90001
4- 41
PNA Series Microwave Network Analyzers
Troubleshooting
E8362A, E8363A, E8364A
Measurement System Troubleshooting
5. If the signal is not present, replace the A10 frequency reference board. Refer to
“Removing and Replacing the A6, A8, and A10 Boards” on page 7-18
6. If the signal is present, reconnect cable W29, and continue testing at
through A34 Receiver Outputs” on page 4-50
Checking the A8 Fractional-N Synthesizer Band 1 Output
1. Refer to the block diagram at the end of this chapter and to
.
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 508.333 MHz.
5. If the 508.333 MHz signal is not present and the 5 MHz reference signal is present from
“Checking the A10 5 MHz Reference Output,”
replace the A8 fractional-N synthesizer
“Removing and Replacing the A6, A8, and A10 Boards” on page 7-18
.
6. If the signal is present, reconnect cable W20, and continue testing at
Fractional-N Synthesizer Band 2 Output”
.
Checking the A8 Fractional-N Synthesizer Band 2 Output
Perform this procedure if you observe a problem in band 2 in all receivers.
1. Refer to the block diagram at the back of this chapter and to
.
Locate semirigid cable W19, at the A8 fractional-N synthesizer board.
CAUTION
Be careful not to damage the center pins of the semirigid cable. Some flexing
of the cable is necessary to measure the output. Do not over bend it.
2. Using a 5/16-inch torque wrench, disconnect W19 at A8J106.
3. Connect the spectrum analyzer to A8J106.
4. Set the network analyzer to a CW frequency of 1 GHz.
• The spectrum analyzer should measure a signal at 1.008 MHz.
5. If this signal is not present, replace the A8 fractional-N synthesizer board. Refer to
“Removing and Replacing the A6, A8, and A10 Boards” on page 7-18
6. If the signal is present, leave the spectrum analyzer connected to A8J106 and continue
testing at
“Checking the A8 Fractional-N Synthesizer Bands 3 through 25 Output”
.
Checking the A8 Fractional-N Synthesizer Bands 3 through 25 Output
Perform this procedure if you observe a problem in bands 3 through 25 in all receivers.
1. Set the network analyzer to a CW frequency of 2GHz.
• The spectrum analyzer should measure a signal at 2.008GHz.
Summary of Contents for E8362A
Page 11: ...Service Guide E8364 90001 1 1 1 Safety and Regulatory Information ...
Page 19: ...Service Guide E8364 90001 2 1 2 General Product Information ...
Page 29: ...Service Guide E8364 90001 3 1 3 Tests and Adjustments ...
Page 79: ...Service Guide E8364 90001 4 1 4 Troubleshooting ...
Page 139: ...Service Guide E8364 90001 5 1 5 Theory of Operation ...
Page 169: ...Service Guide E8364 90001 6 1 6 Replaceable Parts ...
Page 215: ...Service Guide E8364 90001 7 1 7 Repair and Replacement Procedures ...
Page 287: ...Service Guide E8364 90001 A 1 A Error Terms ...
Page 303: ...Service Guide E8364 90001 B 1 B Option Enable Utility ...
Page 309: ...Service Guide E8364 90001 C 1 C Firmware Upgrades ...
Page 313: ...Service Guide E8364 90001 D 1 D Operating System Recovery ...