Simpson 650 - Case Removal; Battery Replacement

SECTION IV
MAINTENANCE
CASE REMOVAL
To remove the instrument from the case, remove
the four screws located in the four corners on the
back of the instrument case. All the components
are attached to the front panel. Be sure the instru-
ment is detached from the Multimeter and test
leads are removed.
BATTERY REPLACEMENT
Two batteries are located within the instrument.
Both are 1.5 volt cells, No. 2, D size, held in
place with a spring clip. To remove the batteries,
open the unit as described above and merely grasp
both ends of the battery and pull in an outwardly
direction. When replacing, be sure to observe
battery polarity as shown in figure 5.
PARTS REPLACEMENT
АП the components of the Model 650 have been
engineered for many years of useful life. However,
there are conditions under which parts may become
damaged or faulty and require replacement. Refer
to the circuit diagram in figure 6 to help identify
and locate any suspected part.
16