Agilent Technologies E8362B Service Manual page 123

PNA Series Microwave Network Analyzers
E8362B, E8363B, E8364B
Checking the A21 Output (E8363B and E8364B Only)
1. Disconnect W2 from A21.
2. Connect a cable to A21 and measure the output power. A power level of a −7 dBm ±5 dB
indicates the A21 assembly is functioning normally.
3. If the output power of A21 is at or below the minimum power level, replace the A21
SOMA 50 assembly.
4. If the output power is normal, reconnect cable W2 to A21.
Checking the A10 5 MHz Reference Output, All Bands
1. Refer to the block diagram at the end of this chapter and to
Except 080" on page
board.
2. Disconnect W31 from A10J10.
3. Connect the spectrum analyzer to A10J10.
4. The spectrum analyzer should measure a signal at 5 MHz.
5. If no 5 MHz signal is present, replace the A10 frequency reference board. Refer to
"Removing and Replacing the A6, A8, A9, and A10 Boards" on page
6. If the 5 MHz signal is present, reconnect cable W31, and then continue with
the A10 Phase Lock Reference Output, All Bands" on page
Checking the A10 Phase Lock Reference Output, All Bands
1. Refer to the block diagram at the end of this chapter and
Except 080" on page
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
6. If the signal is present, reconnect cable W32, and then continue with
LO at the A10 Frequency Reference, All Bands" on page
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
Except 080" on page
board.
2. Disconnect the flexible cable W29 at A10J4.
3. Connect the spectrum analyzer to A10J4.
Service Guide E8364-90026
6-14. Locate flexible cable W31, at the A10 frequency reference
6-14. Locate flexible cable W32 at the A10 frequency reference
6-14. Locate the flexible cable W29 at the A10 frequency reference
Troubleshooting
Measurement System Troubleshooting
"Top Cables, All Options
7-18.
"Checking
4-41.
"Top Cables, All Options
7-18.
"Checking the 2nd
4-41.
"Top Cables, All Options
4- 41