Disassembly - Fluke 9000A-8080 Instruction Manual

8080
11. Check for the occurence of the SYNC signal at pin 10 of the shielded
cable connector.
12. Check the address decoder by performing read operations at
addresses 0000, 1000, 2000, 3000, 4000, 5000, 6000, and 7000. Verify that
the respective decoder output goes low when addressed.
13.
If repairs have been made to the inoperative pod as a result of the
preceeding checks, attempt self test. If self test operates, but the pod fails,
refer to Troubleshooting a Defective Pod.
The troubleshooting guidelines presented in the preceeding paragraphs are
intended to assist in the isolation of faults within the pod. If attempted
troubleshooting fails to reveal the pod fault, return of the pod to the nearest
Fluke Service Center is recommended. Refer to the troubleshooter Service
Manual for a list of Fluke Service Centers.
5-14. DISASSEMBLY
To gain access to the two PCB assemblies within the pod, proceed as follows:
1.
Remove the ribbon cable plug from the self test socket.
2. Remove the four phillips screws holding the pod case halves together
and carefully open the case.
3. With the PCB assemblies removed from the case halves, remove the
screw which retains the shield. Remove the shield.
NOTE
To troubleshoot the pod, it may not be necessary to separate the
two PCB assemblies except to replace components. Figure 5-1
shows the location of each component on the lower PCB assembly
relative to the accessible non-component side of the board.
4.
If it is not necessary to separate the two PCBassemblies, temporarily
replace the shield retaining screw; otherwise, remove the second screw
from its standoff and carefully pull the boards apart at the connector.
5. To operate the pod with the two printed circuit boards separated
from each other, reconnect them in a side-by-side fashion using the test
adapter, Fluke part no. 613828. Make sure that correct pin-to-pin
relationships are maintained.
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