Tektronix 222 Operator's Manual page 108

More On How It Works-222 DSO Operators
ried in an optional accessory pouch that attaches to the instrument
carrying case (see section
7
for the part number). The accessory
pouch may also be used to carry the standard U S . battery-charger
adapter (wall transformer) when operating the instrument on battery
only.
When the charge level on the battery in the oscilloscope reduces to
the shutoff level, one of the spare charged batteries may be used to
provide more operating time.
The battery is in a compartment behind the probe pouch. To remove
and replace it, follow this procedure:
1. Open the probe pouch and take the probes out of the pouch. This
allows the battery compartment cover freedom to move away from
the oscilloscope.
2. Place the oscilloscope on its right side and slide the battery com-
partment cover toward the rear to disengage the locking tabs. The
hole for the probe leads makes a convenient place to apply the
needed force with your finger.
3.
Lift the battery compartment cover up and slide it down the probe
leads enough to be able to lay the cover down.
4.
Disconnect the 3-wire battery connector.
NOTE
If you reconnect power to the battery connector from
the charged battery in less than 30 seconds, the saved
waveforms and front-panel setups will not be lost,
5. Lift the battery pack out of the battery compartment.
6.
Place the charged replacement battery into the battery com-
partment with the battery leads on the bottom side facing toward the
rear.
7 .
Reconnect the battery plug.
8. Slide the battery compartment cover back up the probe leads and
place the cover locking tabs into the matching slots in the battery
compartment. Make sure the locking tab are all the way into the slots
REV JUN 1989