Fluke 9640A Series, Instruction Manual

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9640A
Instruction Manual
7-16
60-Pin Ribbon Connector
Panhead Screws
(7 places)
A4 Power Supply PCA
Molex Connectors
for Fans (2 places)
ead322f.eps
Figure 7-8. Removing A4 Power Supply PCA
A9 Leveling Head 50
Ω
and 75
Ω
–Disassembly and Reassembly
W
Caution
To avoid damaging the electrical components of the A9
Leveling Head and the Instrument, disconnect the Leveling
Head from the Instrument before performing the Leveling Head
disassembly/reassembly procedures.
Leveling Head Disassembly Procedure
Use the following procedure to disassemble an A9 Leveling Head. See Figure 7-9.
1.
Carefully peel and remove the overlay from the top portion of the case (top case).
2. Remove the top two countersunk screws from the N-type connector.
3. Remove the eight socket-cap screws from the bottom portion of the case (bottom
case).
4. Lift the top case from the Leveling Head.
5. To remove the PCA from the bottom case proceed as follows:
a.
Remove the two remaining countersunk screws from the N-type connector.
b. Remove the three socket-cap screws from the cable clamp.
c. Remove the cable with the clamp, grommet and the PCA from the bottom case.