Removal and Replacement Procedures For 3739A
7-9 Rear Panel Fan Assembly – ND73164
VectorStar ME7838 Series MM
PN: 10410-00306 Rev. F
7-25
Replacement Procedure
Common Disassembly Procedures
1.
Power down the VNA and Test Set and disconnect the cables between the VNA, Test Set, and Modules.
Move the Test Set to the repair area.
•
See
“Disassembly Procedure – Power, Disconnect, and Covers” on page 7-1
above.
2.
Remove the top cover as described in the procedure above.
Fan Replacement
3.
Identify the location of the Rear Panel Fan Assembly as shown above in
above.
4.
Disconnect the fan assembly power plug from the A1 Bias Control PCB at connector P9.
5.
Review the Rear Panel Fan mounting hardware as shown below in
6.
Using a Phillips head screwdriver and an M4 open end wrench, loosen and remove the four (4) screws and
Kep nuts that hold the fan assembly and the outside finger guard to the Rear Panel.
7.
Remove the to-be-replaced fan assembly and insert the replacement assembly. Note the airflow arrow
orientation on the fan to move air into the chassis.
8.
Insert each mounting screw through the finger guard, rear panel, fan, and secure in place with a Kep nut
and loosely tighten.
9.
When all four screws are in place, make sure the fan assembly is centered in the rear panel opening, and
tighten the four (4) screws and nuts.
10.
Connect the fan power cable to the A1 PCB Connector P9.
Common Reassembly Procedures
11.
If no other interior replacement procedures are required, follow the common reassembly procedures
described above.
•
“Reassembly Procedure – Power, Disconnect, and Covers” on page 7-4
Содержание VectorStar ME7838 Series
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Страница 14: ...1 6 ME7838 Series VNA System Overview General Information 1 6 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...
Страница 28: ...1 7 Recommended Test Equipment General Information 1 20 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...
Страница 76: ...4 10 ME7838G System Operation Theory Of Operation 4 16 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...
Страница 94: ...5 3 ALC Level Calibration Adjustment 5 18 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...
Страница 176: ...A 3 ME7838G WR05 S Parameter Measurements Test Record Test Records A 4 PN 10410 00306 Rev F VectorStar ME7838 Series MM ...
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