Anritsu 682XXB - Manual (Page 230)

6-5
REMOVING AND
REPLACING THE A7 PCB This paragraph provides instructions for removing and replacing the
A7 YIG Loop PCB, which is located in the main card cage (see Figure
6-3).
Preliminary Disconnect the power cord from the unit and remove
the top cover as described in paragraph 6-2.
Procedure Remove and replace the A7 PCB as follows:
Step 1 Remove the main card cage cover and set
aside.
Step 2 Using a 5
16
-inch wrench, disconnect coax-
ial cable W31 from the Sampler/SRD
module on the PCB.
Step 3 Disconnect the coaxial cables at A7J1 and
A7J5 by lifting up on the cable connec-
tors.
Step 4 Lift up on the edge tabs of the PCB and
lift it out of the card cage.
Step 5 To replace the A7 PCB, reverse the re-
moval process.
6-6
REMOVING AND
REPLACING THE A8, A9,
A10, A11, OR A12 PCB This paragraph provides instructions for removing and replacing the
A8 Function Generator PCB, the A9 PIN Control PCB, the A10 ALC
PCB, the A11 FM PCB, or the A12 Analog Instruction PCB, all of
which are located in the main card cage (see Figure 6-3).
Preliminary Disconnect the power cord from the unit and remove
the top cover as described in paragraph 6-2.
Procedure Remove and replace the A8, A9, A10, A11, or A12
PCB as follows:
Step 1 Remove the main card cage cover and set
aside.
Step 2 Disconnect any coaxial cables from the
PCB to be removed by lifting up on the
cable connectors.
Step 3 Lift up on the edge tabs of the PCB and
lift it out of the card cage.
Step 4 To replace the PCB, reverse the removal
process.
6-10 682XXB/683XXB MM
REMOVAL AND
REPLACEMENT PROCEDURES
A7 PCB