6-17 Replacing Power Monitor PCB Assembly, Option 5 – ND67197 Assembly Removal and Replacement,
6-28 PN: 10580-00307 Rev. D MS20xxC MM
Disconnecting Detector Connector Flex Cable:
3. Pry out the Connector Flex Cable that is attached to the Detector connector from the Power Monitor PCB.
4. Remove the three (3) Phillips-head screws from the Power Monitor PCB.
5. Holding the Connector Flex PCB Cable away from the Power Monitor PCB, gently lever up the PCB out
of its header socket.
Checking Header Pins:
6. If the M-M Header Pins stay on the VNA PCB Assembly, then remove the pins and reinstall them on the
Power Monitor PCB.
Removing Power Monitor Detector Connector
7. To remove the Power Monitor Detector connector from the top connector panel, use a 5.5 mm angled-head
open-end wrench to undo the two M3 x 0.5 Kep Nuts with lock washers.
8. When the nuts are removed, pull the Power Monitor Detector connector towards the VNA PCB Assembly
until it clears the top connector panel, and then set it aside with the Power Monitor PCB.
Installing Replacement Power Monitor PCB:
9. Install the replacement Power Monitor Detector connector into the top connector panel. Note that the
Flex Cable must oriented above the Connector. Reinstall and tighten the two M3 x 0.5 Kep Nuts (tighten
firmly–no torque specification).
10. Holding the Flex Cable up, reinstall the Power Monitor PCB.
11. Press on each side of the header strip to mate the two connectors.
12. Inspect the Header connectors from the side to make sure that all pins are correctly inserted and that no
pins are bent.
13. Reinstall and tighten the three (3) Phillips-head screws holding the Power Monitor PCB to the VNA PCB
Assembly. Torque these screws to 7.5 lbf·in (0.85 N·m).
Connecting Detector Flex Cable:
14. Insert the 4-pin header on the end of the Detector Connector Flex Cable into the Power Monitor PCB.
15. Make sure that all cables are clear from the Case assemblies.
16. Replace the case rear assembly and the battery
Caution
Use extreme care to avoid bending any of the header pins as they mate with the header strip on the
VNA PCB Assembly. Be careful to not offset the header pins by one row.
Caution
All cables along the lower edge of the Mother Board and VNA PCB Assembly must be routed in such
a manner that they will not be pinched between, or protrude between, the case halves of the upper
battery compartment. If any cable protrudes into the battery compartment when the case is closed,
then the cable may be damaged by pinching, or If any cable protrudes into the battery compartment
when the case is closed, then the cable may be damaged by pinching, or by the battery when it is
inserted, or it may prevent battery insertion.
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