Fluke 707 - Page 5

Loop Calibrator
Disassembling and Reassembling the Calibrator
5
Removing the Switch Support
Lift the switch support out of the top case.
The LCD, keypad assembly, and elastomeric strips
are now accessible and can be replaced as needed.
Do not allow the LCD to get wet.
Before installing a new LCD, make sure that all
connector contact points are clean.
WCaution
Do not touch the conductive edges of the
elastomeric strips or the contacts on the
keypad assembly. If they are
contaminated, clean them with isopropyl
alcohol.
Reinserting the PCA
1. Place the PCA over the four screw posts in the
case top.
2. Gently press on the center of the PCA while
using the small flat-edge screwdriver to insert the
PCA under the snap on a side of the case top.
Repeat on the other side and the top.
Reassembling the Loop Calibrator
Reassembling the Calibrator is the reverse of
disassembling it.
After the Calibrator is reassembled, perform the
verification test to confirm that the Loop Calibrator is
working properly.
1
2
3
Snap
Snap
Snaps
adi02F.emf
Figure 3. Removing and Reinserting the Printed Circuit Assembly (PCA)