14.3 Instrument Disposal
193
1
14
3
4
5
6
7
8
9
10
1.
Turn OFF the power to the
3169-20/21.
2.
Turn the instrument upside
down and remove the four
screws affixing the bottom
cover.
3.
Turn the instrument right side
up and remove the top cover.
4.
Remove one screw, and then
remove the key circuit board.
5.
Cut the two leads of the but-
ton-type lithium battery near
the corner of the circuit boards.
6.
Remove two screws, and then
remove the circuit board fas-
tening the LCD.
Circuit Board
Lead
Required tools:
• Phillips screwdriver 1
• Wire cutter 1
• Hexagonal wrench 1
Lithium Battery Removal
Bottom cover
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